Feb. 13, 1951
R. FERWERDA ETAL
2,541,045
MATERIAL MOVING APPARATUs
Filed May 15, 1944
5 Sheets-Sheet 1
FIG.
1
/07
INVENTORD.
RAY FE RWERDA mm KoopFERwERDA,
BY
Wham
ATTORNB Y-S.
Feb. 13, 1951
R. FERWERDA ET AL
2,541,045
MATERIAL MOVING APPARATUS
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INVENTORS.
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Rm Fm WERDH mw KnoPmgwznp/r,
BY
ATTORNEYS.
Feb. 13, 1951
R. FERWERDA ET AL
2,541,045
MATERIAL MOVING APPARATUS
Filed May 15, 1944
5 Sheets-Sheet 3
Fla-4
F-Wets
INVENTORS.
RAY FERWERDA mm KooP Fsxwmnn,
BY
‘
kW,‘
AT TO R NETS -
Feb. 13, 1951
R, FERWERDA ET AL
2,541,045
MATERIAL MOVING APPARATUS
Filed May 15, 1944
5 Sheets-Sheet 4
H65
m
INVENTCRS.
‘i RAgYFERWERD? nno KOOP FERWERDA,
iagfwm 36W
;
' AT T ORNEYS.
Feb- 13, 1951
R. FERWERDA ETAL
2,541,045
MATERIAL MOVING APPARATUS
Filed May 15, ‘1944
5 Sheets-Sheet 5
1N_VENTOR§
RAY FERWERDA mm KQOPrERWERDA,
,BY
‘
W EL‘MOQIM
.
ATTORNEYS .
2,541,045‘
iiatenteci eh. 13, 195i
\ UNlt’l-TEDP
earshot: QPFFIICE
MATERIAL‘
‘APPARATUS *
liayiFerwerdaiand Keep; Ferwerda; .
Lake,~‘-I.!ucerne1,,,0hio
App1ieatio1r*May“'-15§ 1944, Serial No. 535,706
16 Claims; (Olefin-P132)»
2:
This; invention-last‘ indicated, relatesto aimatee
rial Emovinguapparatuss More particularly; itireé
‘
The“invention‘alsouincludesr the - method ‘crime
terial moving thI‘OLDghLtHGLUSG/"Of‘ hwdraul-icailr
lates “to a: 1 means @of?i more .erzpeditiouslyvcarrying;
eontrolledrelements operating'pairs?and adapt
edo to he:v moved relatively» to ‘each other ‘ under"
0m;iIVZLIPiOQJSXOPGI’alliOMS »- wherein‘imaterial" isselee
vated and movedifto ar'predeterminedvposition or" , a variousioperativeconditions oi theap-paratuse
Therprincipaii ‘obi ect of; fth'e present invention’ is
to; 'provides'an':improved'itype: of 'i‘material moving
apparatus adapted tit-fulfill‘ ‘a Wide variety‘ofv'ope~
erationsswith high e?iei‘en‘cy.
Anotheraobiect of‘ith‘e iitventioniis‘to- provideeanr
carried: to ‘a distantirplacesoir'disposal‘; Ittisiof
particular, utility for eartli‘nvorking operations or»
forrli'andliinglbulkiimateriah suohi aslsancl; gravel-,1
coal, snow-1,1 ashes; chemicals;- minerals:and’1othe1='~
si-rriilariv materialss: Thaw apparatus‘ is, in ‘the:
m
apparatus zadapted ' toilmove material to-‘ai-loadi‘ngi
point; andnthereafteratoz load suchimaterial ‘on -ve'-i
natures, of i‘ ai universal»? earth‘nworking machine’
adapted intaz. single“: unit ‘ i to performs functions
usually ~ear1‘iecifout1 by; specialized “typesof “apparatus, such asgraders‘;b'ull'4dozers; slopers,- motor=
patrolsidifzchersi and th‘edikeo This ‘isl'aicon-tinu
anemia-part of our='Patent'"2;348;!796;i May "161,?
eiomtransportationi :to1 other ilocations-f
Another obiectlof‘theuinvention is-to provide'lanr
; apparatus‘ suitable-aim‘ earth-workiriget "various
operatirevanglesiin athendirectiorr or I earthomo-veel
1944i.
merit-‘and transrersely‘the-reo?. >
‘ The invention- ir‘icludes
apparatus *with “an?
extension iboom-iof- ' exceptional “ radius of 3"action;
Another: obiectior the invention2 is to pro-wide an
apparatusrhaving amextensible‘ boom ian‘ci‘la-l‘mae
andiwith precision controliand with positiverlockb
inigw features i:
terial. hvancili-ngiir'nplement 'at'itherendthereoi with?
20
dual operative means serving to elongaten the’
is< adapted for‘- operating‘; in‘
places where: other i apparatus ‘could not iun'ctiom
‘noomsanck:toioperatessuch ‘implement "at vanyipre
It also includes materiai- gathering and lifting-op»
determined i angle: and 1 thereafter':' to" i retract the:
eration'siof 1widewarietv'randiat i'a" relativelyrhiigh
boom:totany‘predeterminedextent;
‘
rates or" speed- 1 and E with simpl "effective ‘control 25 ‘ Another object ofuthe‘éiriventiorr is‘Fto provieléfw
material L moving : apparatus 1 operated’: by
hiya‘:
ands marri-pui'ationzl. Ther" inventionv includesL at
draiiiic .system: of: control andewherein‘a'speciath
izedteimplementz is;providediformirrg:=-pa1'tior I‘t-l-ie?
hydi-‘aulic'systeman'd subject tesharmonious cons“
combinedzi boom extension ‘I. and"; implement ‘/ posiéi?
tioningcm'eohan‘ism *oii'simplercharacter 1 and rela-l I
tiveiyili'ghitiweight which? may operate-‘vwholl'ydifivi
ferent‘typesioi implements.
_- trol withithe movementio-tthfe apparatus:
Anoth'errohjectiof:ithesinventionz is to provide a:
In the form illustrated the implementiisems
bodiedlilniIaJihOB-itYPB-RSCOODi“M11101?<mayi-bl3 oper
methodior ‘material moving wherein 1aidualf-isyss ‘
temr‘of' control‘: isiemployedi for lengagingttheimatee »
atediaion'e i or ‘:as» a: surface ?nishing unit; or: may:
rial and ithereaiter- moving-title a predetermined‘?
be‘ moved into cooperative\actiomwith a‘ closure
member :whereby‘therseoop‘» will act somewhat aft; a
erltheimannerof axb‘ucket iorrsh‘ovel'.
-
position:;_
It thus can-'
Ahother 1 object 1 of - theinvention is to ‘provide! ae
shape the tadjacentiearth ' surface: and Iscrape~¢ex= ~
method of engagingioertain materialioibe moved"
case material to a loading'pointiarrdthen rapidly‘
by‘ 1meanseasso cia'ted with’» then-liming“ operation ‘
perform: the loading" operation; Besides!‘ the;
scoop a double cylinder mechanism is provided’too
operateftheisamegcsuch mechanism elongating-the
boom/to; a; degree: suited: vto ‘the work? in handiand i
> at ‘.zth‘e-same‘ time .‘permitting; an?irreversiblei- ad; -
and-"Iop'erabl'eeat Eany 'range of movement ’of ;such''‘
apparatus;
mechanism:
conjunction with" suchlv moving?
‘
Otherand further objects of
‘
invention will“
utilizing; a double ‘cylinder mechanism for‘ a-seoopl"
appear‘ir‘rthe course of ‘the followingrdescription..‘.
To the accomplishment ‘of .' the ‘foregoing and;
‘ related ‘lends, said 'inventiom then, consists: of ‘the,
orr'scraxper types implementhvariousr other highly:
eluding;
specialized
dirtchingistype
types of rimplements'imay
units; clam-(shell
:be used’;
; diggers ,‘s.
1y‘ pointed out. in the-‘claimsethe! annexed ‘drawinga
andthe following. description settingeforth inid?q“
justment Iof theiscoopi'orsoraper angle particular‘- =
1y» suited‘sforrsucli' operation.
Irv addition tofv _
specialized rakes and the like.
The‘invention iIICIHdES'rthQLmQthO? ofvmaterial
means hereinait‘er fully. described‘ and particular‘ 2
, tail certain meansiembodyingi-theiinvention; such;
* disclosed-rmeanssconstituting however, ‘bllt‘iS‘QV!
eral‘ of various ‘forms .in
theprincipleioi» thee
invention mayheused: A
load and thereafter ~.moving; the 102 d -to another;
Insaidtannexednrawilflgi .
'
position‘ is carried. 0n.-by; avcombined; Limit having "
asdi-fferentiall action topermit such .dual functiom. 55:- ‘ Fig/,1 1 is a rear- end riew-ei-the ,vehic1eibasasuge-e
moving: iwhereby the-noperationszo? engaging the»
2,541,045
3
‘f
porting apparatus with the material moving ap
some distance above the floor of the platform 1.
paratus shown in side elevation;
The supporting structure for the boom 22 com
Fig. 2 is a top plan view of the structure shown
prises a pair of heavy plates 23, 24, securely
in Figure 1;
mounted centrally of the platform 1 and spaced
Fig. 3 is a view of the structure shown in Figure 6 apart a distance somewhat greater than thq
1 as seen in elevation from the left-hand side of
turntable width. At the forward upper edges of
Figure 1, or front of the material moving appa
the plates trunnion bearings 25, are mounted,
ratus, the implement being omitted;
within which the stub axles 26 are engaged, the
Fig. 4 is a view of the structure shown in Figure
stubaxles being secured to the opposite sides of
1 as seen in elevation from the right-hand side of 10 an annular roller bearing track 21 within which
Figure 1;
an annular roller bearing shell 28 is rotatably
Fig. 5 is a diagrammatic view or schematic out
engaged. The plates 23, 24, are cut away on
line of the hydraulic control system;
an angle at their rearward portion 29 to a point
Fig. 6 is a side elevation of the forward boom 7
‘ adjacent the floor of the platform and immedi
end portion showing a hoe-type scoop and closure 15 ately inside the walls thus provided, boom rais
in open position, and with a scraper angle adjust
ing and- lowering cylinders SI, 32, are pivotally
ment shown in dotted lines;
} Y
mounted on pivot bearings 33 mounted on
,
the platform immediately below the trunnion
bearings 25 of the boom; The piston rods 35
Fig. 7 is a side elevation of a clam shell bucket
type implement in closed position, with the open >
position shown in dotted lines; and
20 of the boom raising and lowering cylinders are
Fig. 8 is a side elevation partly. in section of a
deep ditching type implement.
pivotally engaged with pivot pins 35' mounted
in brackets 36 at the lower rearward ends of
. As is clearly shown in Figures 1 to 4 of the
a rearwardly extending frame 31 securely mount
drawing, the material moving apparatus com
ed on the rearward face of the annular roller
prises a support I, preferably in the form of a 25 bearing track 2's" heretofore described.
vehicle of rigid construction with heavy wheels
The rearward portion of the frame 31 is formed
2- and axles 3 and a substantial frame or body
of a built-up cross-member 38 having'a large
member 4, on the upper side of which a circu
central bearing 39 for the main rotatable boom
lar turntable unit 5 provided with roller bear
body 5| which terminates in~a large circular end
ings B is mounted. The upper turntable mem 30 plate 42, carrying centrally a stub shaft (not
ber is'secured to the under side of an enlarged
platform 1, which is provided at a central point
with an opening through which a ?xed vertical
shown) engaged in the bearing 39. The end plate
42 also has securely mounted thereon a bracket
44 providing two pivot pins adjacent its upper
margin above the central bearing 39.
standard 8 secured at its lower end 9 to the
vehicle body member 4, is engaged. The stand 35 The cross-member 38 has upturned end mem
ard 8, carries at its upper end a stationary sprock
bers providing spaced brackets 45 within which
et ||, over which a sprocket chain I2 is engaged.
are mounted the axially rotating, tilting, cylin
The sprocket chain I2 is preferably of a length
ders 45, 41. The pistons 48, 49, of said cylinders
adequate to carry the platform ‘I through a rota
are connected to the respective pivot pins of the
tion around the turntable of at least a complete 40 bracket 44, and oil pressure. selectively directed
circle.
'
into one of these cylinders produces axial rota
vThe means for rotating the platform in the
tion ofthe entire boom structure, as will be ex
full hydraulic system illustrated provides a hy
plained in detail hereinafter.
_
draulic cylinder unit at each end of the sprocket
The extensible axially rotatable boom structure
chain |2. These cylinder units l3, I4, are pref 45 comprises the rearward section 5|, preferably
erably anchored on the platform ?oor along diag
formed of a skeletonized frame of three tubular
onal lines at each of the rearward corners. Each
members 52, 53, 54, of extended length secured
cylinder should be of su?icient length to per‘
in the rearward end plate 42, preferably ar
mit its piston rods | 5, I6, respectively, a long
ranged in triangular relation to provide two lower
range of motion. A double acting valve in the 50 parallel track-ways 52, 53, and a central upper
trackway 54.
'
r
valve unit |5|, presently to be described, supplies
oil under pressure selectively to one or the other
The rearward boom section 5| is securely en
of these cylinders according to the direction of
gaged within the annular roller bearing shell 28
motion desired. An air line connection I!) be
which, as stated, rotates within the annular
tween the two cylinders, transfers air from one 55 roller bearing trackway heretofore described.
cylinder to its companion cylinder to correspond
Adjacent its forward end the boom section 5|
with the direction of movement.
is provided with a triangular bracing member
. The rotatable platform 1, at its forward por
tion at one side is provided with an operator’s
55, and it may also have one or more similar
intermediate bracing members, such as, shown
cam 2|, and the valve controls are centered at 60
such point, as will later be described in de
at 5B.
tail.
members 52, 53, 54, brackets-57 carrying grooved
.
'
At the extreme forward ends of the tubular
Centrally of the platform ‘I, an extensible boom
rollers 58 are provided for cooperation with the
22 is provided, the forward portion of the main
extensible or telescopic inner boom section 6|.
body of the boom projecting beyond the front 65 The boom section 5| is preferably made very rigid
edge of the platform, in the‘ apparatus illus
and its central portion may be provided with rein
trated, approximately half its length. In order
forcing webs or gusset plates of sheet metal 59
to obtain longer range of action and balanced
welded to the tubular members 52, 53, 54 on their
operation the boom is pivoted on the platform
outer surfaces or to the brace bars secured
at an intermediate point, in the apparatus illus 70 thereto.
'
trated, at a point approximately one-third the
The inner boom section 6| is very similar in
distance from its rearward end. The horizontal
construction to the outer boom section 5| hav
pivot for the boom is somewhat in advance of the
ing three triangularly related tubular members
turntable center and is part of a broad rigid struc
62, 63, 64, with bracing members 65 at intervals
ture supporting the boom horizontally in a plane 75 of their length.‘ At their rearward ends the
2,541,045
piston'i‘od displacement. ‘ This allows the 'piston
rod of the cylinder I01 to extend at the same rate
as the piston rod in the cylinder I06.
While combined extension of the boom and
operation of the implement may be carried on
under certain conditions, the operation of the
and into tilev manifom tank I24. When the valve
plunger I51 is pulled cut, oil ?ows from the valve
port I58 into the cylinder port I59 forcing the
piston 49 from the cylinder 41 causing the'com
panion piston 48 to ‘be forced into the cylinder
46 and its oil to flow from the cylinder port I60
apparatus has in View the use of one valve at a
into the valve port I6I and thence to the mani
time. . However, where bulk material is to be
fold tank I24.
7
moved as the apparatus traverses an area on its
' When the valve plunger I51 is pushed in its
own power or with a tractor, for example, in 10 operation is reversed. Oil flows from the valve
pushing back high snow drifts by stages in suc-v
cessive levels from the top of the snowbank with
the boom held stationary at the selected Working
height and angle, the blade may be continuously
adjusted as to the- contact angle to spill or roll ‘
the snow into the proper line of discharge while
the work is in progress.
. When the blade or scoop operating plunger I3I
is pushed in, oil flows from the valve port I21
to the cylinder ports I34 and I33. But oil will not
?ow through the cylinder I06 because the piston
is locked due to the valve port I28 being blocked.
As oil enters the cylinder port I34, oil leaves the
port |6I into the cylinder port I60 which will
cause oil to flow from the cylinder port I59 into
the valve port I58 and thence to the manifold‘
tank I24.
All oil from the manifold tank I24 ?ows into
the reservoir supply tank I I6 which in turn feeds
the two dual pumps III, II2, as heretofore de
scribed.
It is to be understood that the main oil supply
tank II6and the manifold tank I24 may be ar
ranged on the apparatus at any convenient 'posi
tion, such as beneath the internal combustion
engine shown in Figure 1. The several control
cylinder port I35 and the piston operates the
lever or operating arm 85 on the blade or scoop 1..
adjusting it to the required angle. Oil enters the
valve at the port I29 since the port I26 is blocked
off. When the plunger I3I is pulled out oil ?ows
out of the valve port I29 into the cylinder port
I35 retracting the piston. Oil leaves the cylinder :
valves with’ the valve plungers are positioned
within a valve housing I00, mounted within the
cab, and connected beneath the ?oor by suitable
pipe lines with the oil supply tanks and cylinders
as clearly shown in the diagrammatic view or
schematic outline comprised in Figure‘5.
The various valves used to effect the operations
port I34 and enters the valve port I21 returning
to the manifold tank I24.
just described co-operate with each other as fol‘
lows:
.
The hydraulic system for raising and lowering
Valve I22 controls by means of the plunger
the boom comprises a simple double acting valve
I65 the flow through the pipe I23 shown in Fig-.
associated with two double acting hoists con- :1,VI ure 5 to divert the oil into valve II8 controlling
nected in parallel.
the boom extension and blade, angle, position, or
Oil is supplied from one pump of the dual pump
unit II I to the valve I31. When the valve plung
er I 38 is in its neutral position oil by-passes
to by-pass such oil to the manifold I24.
‘
The valve II8 just referred to controls by
means of the plungers I25 and I3I, the extension
of the boom with the pistons I08 and I09 (shown
in Figure 5) moving in unison and by differential
through the'valve into the manifold tank I24.
.When the valve plunger I38 is pulled out in boom
raising position, oil flows out of the valve port
action of said valve as heretofore described in
I4I and into the cylinder ports I42, I43 raising
connection with Figure .5 controlling the opera
the boom. Oil leaves the cylinder ports I44 and
tive angle, or operation, as the case may be, of
I45 and returns to the valve port I46. When the f the implement mounted on the free end of the
valve plunger I38 is pushed in to lower the boom,
boom.
oil leaves the valve port I46 and enters the cyl
The valve I31, by means of the plunger I38,
inder ports I44 and I45. Return oil passes . controls the vertical angle of the boom and holds
through the cylinder ports I43 and I42 into the
it locked in adjusted position, as above described.
valve port MI and thence into the manifold tank
The valve structure I5I provides two double
I24.
‘
acting valves, each connecting with a separate
The axially rotating, the tilting operation and
hydraulic operating unit. Thevalve plunger I52
controls the horizontal angle of the platform and.
the turntable rotation or sluing operation are each
carried out by means of two double acting valves
each of which is connected to single acting cyl
locks the same in adjusted position as above de
scribed in connection with Figure 5 and the valve
inders which oppose each other. The valve I5I
plunger I51 controls the axial rotation of the
is supplied from one of the pumps I I I of the dual
boom as set forth above.
pump assembly. When the valve plunger I52 is
As has been stated, the structure shown in
pushed in, oil ?ows from the valve port I53 into
Figure '1 is substantially identical with the hoe
the port I54 of the cylinder I3. Since the cylin
type scoop 8| heretofore described and illustrat
der I3 is fastened to the rotatable platform ‘I and 60 ed in Figure 1. Two different types of imple
the sprocket wheel II is stationary the move
ments to be actuated through the differential
ment of the chain will turn the cylinders and
action of the dual hydraulic cylinder units are
platform pivoted on the turntable 5 in a clock
illustrated in Figures '1 and 8.
_ .
wise direction. This movement will extend the
In Figure 7 a clam shell bucket-type of imple
companion plunger or piston rods I6 in cylinder
ment is illustrated, the open position being shown
I4 and the oil will ?ow from the cylinder port
in dotted lines. The clam shell implement com
I56 into the valve port I55 and thence to the’
prises two complementary shells, I1 I, I12, having
manifold tank I24. The pipe line I8 between the
reinforced marginal edges I13. The member I1I>
two cylinders-transfers air from one cylinder to
is provided with a pivot I 14, centrally of an exten
the other. When the valve plunger I52 is pulled
sion'arm I15, mounted on the upper edge of said
out, oil ?ows from the valve port I55 into the ‘
member. The extension arm is provided with a
cylinder port I56 and causes a counter-clockwise
pivot‘ I16 at its upper end, connected by a link,
rotation of the rotatable platform ‘I. Oil flows
I11, with the sleeve, 9|, secured to the piston rod'
5."
Iromthe cylinder port I54 into the valve port I53 75 of the control cylinder, I01. The pivot I14 is
sameness
10
:supportedmn :aabracket, > l'1\9,~,connected with the
auxiliary section of the‘boom. {The-shell mem
“the .i'inwardvmovement ' of. said ' scoop towardvsaid
closure : member.
‘
I2.'An apparatus of the ‘character described
ipivot 482 .at its , extreme‘ upper end,¢engaged' with
having :in combination va'supp‘ort, ‘a rotatable
taibracket, "Hi3, :rem'ovably mountedv on the :‘aux 5 platform‘ on saidsupport, a pair of ‘standards'on
said platform, aver-tically adjustable frame‘piw
.iliary- frame.
cross link,~ I84, is connected‘ with
.ianzinterm'ediate portion of the arm, l8 i, by means
‘otally: mounted onrsaidl-standards, an - axiallyz'ro‘e
“tatable main 'boom/rsection supported (on ‘said
lofaa pivct<pin, ~I85,~and at its opposite end-is
:frame, means actingr-betweenwsaidframeand said
engaged .on the ‘pivot vpin I116, :heretofore de
».scribed-. -It is believedthe operation vof the-device 1g boom :‘section for axiallyirotating‘the same-at
-will be obvious ‘from the description ‘of . its ‘con
=least one-extensionboom section slidably mounted
struction, andrthe showing in dotted=lines in ‘Fig
‘within ‘said: main lboom section, a material mov
:ing implement carri'edat the free" end ofanexten
~ure 7, wherein'the retraction of the operating
piston :-9 I ‘ serves the‘purpose of swingingtthe shells
si'on boom section-and means ‘acting between said
twidely vapart.
15 main'boom section and-‘an extension boom sec
ttionffor projecting and-retracting‘the same, and
‘,The ‘ structure shown ‘in .t Figure :8 :is intended
?associatedkmeans for: changing the angle ‘oft-said
ijortuse in ‘deep-ditching oper-ationsfand‘the like.
“implement with referenc‘efto its supportingboom
hIt-dssomewhat in the nature of a post-hole dig
textensicnzsection.
»gcrin itsrst'ructural features, but the jaws- of the
Limplement ~IEJI, Hi2 are-appropriately in shape 20 u3.:Apparatu-s comprising, a vehicularwbase, ea.
~boom ~ on ‘the base tmounted"forisluing and ccm~
flfortthe‘ work in: hand. .Theg'awstarel supported on
prising a free end, ‘the :boom comprising (a
al'tubular member, I93 of extended ‘length, the
'lowerendof which iscut- away to providea ‘nar
smain member (attached to ‘the ‘base and re):
~tending=outward1y therefrom, a working meme
‘row terminaliportion, I941, provided-with a pivot
,lpin, 1.95. :Togglelinks 1,96, .rleiare provided “at 25 ber‘movabletlongitudinally 'of the maintmember
tber'I»'t2'.carries.an>extension/arm, 18!, having a
the-upper ‘ends ,of "the arms-supportingthe jaws
above .the ,pivot, 195, and ‘the toggle ‘links are
lto - extend nandlretract ‘- the free end‘ of :the boom
and operable rtotperform a working-stroke*by~re~
tracting- the ireeend of-the boom, a scooping-4m‘
tplementa attachedv to ‘the ‘working member at ‘the
,erating rod, 199, extending through a central
aperture “20! rat the ‘upper end of the tubular ,30 free-end andoperated by the working member
connected‘to a pivot pin I98 on the endof an op
member“ I 93. ‘An upstanding mgr-2532, isiprovided
on“ the‘forwar'd edge oil-the upper portion‘of the
‘tubular member, l.93,--and abell-crankilever is
rp'ivotally mounted ,onia pivot pm, "25312, on said
performing .a working-stroke, a closure member
{for the :‘scoopingi implement; attached». to 1 the: main
\‘member:atqitslfreeaend andtbeingrpositionable to
automatically close the implement when -.the
‘lug. 'One end o‘ffthe ball-crank lever .is ‘provided 35 working member of the-boomis retracted," and a
,power-system‘operable to sine the-boomtand ‘to
‘with a slotwhich engagesover ‘apivot pin, ‘2535,
‘in‘th'e upper endoi‘y'the operating bar, ‘I99. The
actuate the ‘working member.
,
Apparatus comprising, a vehicular basep-la.
iopp‘osite ‘end of thebell-crank lever carries apin,
‘2W6, engagedin a slot, 251, in an extension-plate,
boom on the base ‘mounted ‘for :sluing, and‘ com
‘238, secured by‘suitable ‘fasteningdevicesto the 40 prising aéfreesend, thelboom comprising a main
membenattached to~the ‘base andlextendingtout
end ‘or the operating piston, 9|. Various :means
of "fastening the tubular member tolthe auxiliary
war'clly therefrom, ,a ‘working member movable
.longitudinallyof I the mainimember to extend-arid
section 'o'f‘the‘boom may beused,v but anadjust
rétraet‘the'free endoo'f the lboomra scoopingim
"able device is desirable in order to have-the “ditch
"ing ‘operation take place onapproiiimately a ver
tical line, ‘with the ‘ operating apparatus at var-
‘ious ‘angles to the work at hand. A ,p1ate,.m2il9,
45 pl‘ement attached to the workingmember at the
free ‘end, ‘a closure member for the sCoopingim»
tplement movably-attached'to the main member
"is ‘provided ‘secured to the ‘forward end of the
"at 'its outward end and ‘being positionable to
ous ai‘igle's ‘of adjustment. ‘The tubular member is
pivotally ‘secured centrallyof theplate , by, means
‘operable by‘the retracting movement of the work
ing '"me‘r'nber'to actuate the c'losurelmember into
of-a heavyipin, 2‘! l, ‘and a latch memb:r,,2-i2, en
vJpositionlto closethe implement, and a powersy's
"Jtem'operablefto slue the boom and to actuate “the
automatically ‘close the “implement when the
anxiliarysecti'on of the boomyhavinga curved
‘?‘on't edge, provided with notches permitting vari 50 working‘ member JOfLth'e boom is retractedameans
‘gaging in'the'no-tches serves to'hold vtheltubular
member‘ at various-angles of ‘adjustment.
55 "working " member.
‘
I ‘Other modes oflapplyinglthe principle .of our
.5. Apparatus comprising, a vehicularbase, ‘a
‘invention may be employed vinstead o'f'those ex
iiplained, c’han‘ge‘being made as regar‘ds'the means
therein disclosed, provided .the means stated by
'lfo‘om Lon'thebaSe mounted lior, sluing and vcom
"prising ‘a’fi'e‘e :endfthe‘ boom comprising‘ a.m'aih
member attached "to :the base and ' extending ‘out
any-of theffollo'wi'ng ‘claims-or the equivalent of ng wardl'y therefrom, "a working member movable
’longitud'inally‘o'f*the main‘ member‘ to extendand
1such’ stated ‘ means be employed.
_‘We ‘therefore ‘particularly point out ."and dis
:retractfthe‘freeend. of'the boom, a scooping im
plement "attached ‘to ‘the “working member "at
iltinctly ‘claim as ‘our? invention:
_' ‘l, (An apparatus of the character described “the .fr'eefend, “a closure ‘member’for "the ‘scooping
having incombinationoa verticalesupport, aplat c5 ‘implementmova'bly ‘attached to the main‘mem'
form rotatable on said . support, .standards ion
‘her at ‘its ifree "end v‘and being positionable ‘to
as dplatform, .atélescop'ic boom pivotally-supe
tunes on ‘said standards, “hydraulically: operated
"workingfmember "of the "boom‘ is‘ retracted, "means
and ‘a ‘closure member for said ,s'ooopmovably
"and to "closethe’implement, "and 'a power system
"automatically ‘elosjefthe ‘implement ‘when "the
"operable 'by fth‘e ‘retracting ‘movement "of ftl'ie
he means 'for eperaung .the telescopic elements 70 "working 'm'embeijito “ actuate the “closure member
“to ‘push tm'aiterial 'into ‘the scooping ‘implement
‘of “said boom, 1a scoop member on said .boom end
nieansror ‘moving-saidboomeoni its‘ pivotfh-ydrau
"smeared inwardly ‘thereof on ithesguideportion
operable ":to 'fs'lu'e “the “boom ‘and "to actuate “the
‘r5 sa
waning s'memb‘er.
;.bojom,fand'inean‘sautomatically‘bringing
esu're menses
it closing vaction "through
,
“a
"La
-
‘2,541,045
11
12
mounted on said base for sluing', mechanism for
'sluing said boom, said boom having a base sec
in ?xed orientation about the longitudinal axis
of said extensible section.
tion and an extensible section telescopically
mounted on said base section, mechanism to ex
tend and retract said extensible section, an im
plement attached to the free end of said exten—
having a horizontal pivotal mounting on said
platform, a telescoping boom having a base sec
tion and an extensible section slidable longitu
sible section and having a working edge, said
l‘ba‘se section having a transverse pivotal mount
Zing, mechanism for tilting said base section
dinally of said base section, said base section
having an annular bearing in said track so ar
ranged that said base section of said boom is
about said pivotal mounting, one of said boom
sections having a ?xed orientation relative to
said implement working edge, said one boom sec
tion being mounted for oscillation about an axis
held against longitudinal movement relative to
said annular track, said base section on the side
of said bearing opposite said extensible section
lying wholly within the dimensions of said-base,
extending longitudinally of said boom, and mech
anism for‘ oscillating said one boom‘ section.
7. Apparatus comprising a base, a boom
l‘mounted on said base for sluing, mechanism for
:sluing said boom, said boom having a base sec
tion and an extensible section telescopically
*mounted on said base section, mechanism to ex
tend and retract said extensible section, an im
:-"plement attached to the free end of said ex
power means operatively connected between said
base and said base section of said boom for tilt
ing said boom about said horizontal pivotal
mounting, power means operatively connected
tensible section and having a working edge, said
implement having a ?xed orientation relative to
‘the longitudinal axis of said extension section, ‘
said base section having a transverse pivotal
tion. about said pivotal mounting, means mount
extending longitudinally on'said boom, said ex
tensible section being mounted non-oscillatably
ble section.
8.' Apparatus
-
comprising
V
11. In material handling apparatus of the
3 f) character described, a telescopic boom compris
about said axis relative to said base section, and
mechanism for oscillating said base section about
~‘said axis.
between said base section and said annular
track for oscillating said boom in said bearing
about an axis longitudinal of said boom, mech
anism oper-atively connected between said base
section and said extensible section for extending
and retracting said extensible section of said
boom, and an implement attached to the free
end of said extensible section in ?xed orienta
tion about the longitudinal axis of said extensi
mounting, mechanism for tilting said base sec~
ing said base section for oscillation about an axis
‘
10. Apparatus comprising a vehicular base, a
rotatable platform on said base, an annular track
ing a base section and an extensible section mov
able longitudinally relative to said base section,
a scooping implement attached to said extensi
ble section and having an open side toward said
a
base,
a
boom a)
' :' base section, a closure member for said imple
‘mounted on said base for sluing,'mechanism for
sluing said boom, said boom having a base sec
tion and an extensible section telescopically
mounted on said base section, mechanism to ex
tend and retract said extensible section, an im
plement attached to the free end of said extensi
jble section and having a working edge, said im
plement having a mounting on said extensible
‘section including a linear pivot extending cross
wise of said boom, means for holding said im
plement in various positions about said pivot,
said base section having a transverse pivotal
mounting, mechanism for tilting said base sec
tion about said pivotal mounting, means mount
ing said base section for oscillation about an axis u
extending longitudinally of said boom, said ex
tensible section being mounted non-oscillatably
about said axis relative to said base section, and
mechanism for oscillating said base section about
said axis.
j
ment open side positioned on said base section
to register with and close said open side when
said extensible section and implement are re
tracted toward said base section, and means for
extending and retracting said extensible member.
12. The combination of claim 11 including a
pivotal mounting for said closure member per
mitting oscillation of said closure member toward
and away from said open side, and mechanism
for so oscillatingsaid closure member.
13.,The combination of claim 11 including a
pivotal mounting for said closure member per
mitting oscillation of'said closure member to
ward and away from said open side, and means
operable by retracting movement of said exten
sible section for oscillating said closure mem
ber toward said implement open side.
14. In material handling apparatus of the
character described, a telescopic boom comprising
a base section and an extensible section movable
" 9. Apparatus comprising a base, an annular
longitudinally relative to said base section, a
track having a horizontal pivotal mounting on
scooping implement attached to said extensible
said base,~a telescoping boom having a base sec
section in ?xed orientation relative thereto, said
tion and an extensible section slidable longitu
base section comprising a plurality of spaced
dinally of said base section, said base section 2; parallel beam members, a ?xed annular track,
‘having an annular bearing in said track so ar
ranged that said base section of said boom is
held against longitudinal movement relative to
said annular track, power means operatively
connected between said base and said base sec
tion of said boom. for tilting said boom about
said ‘horizontal pivotal mounting, power means
operatively connected between said base section
and said annular track for oscillating said boom
in said bearing about an axis longitudinal of
said boom, mechanism operatively connected be
tween said basesection and said extensible sec
tion’for extending and retracting said extensi
ble, section of said boom, and animplement at:
tached to the free end‘of said extensible section
a bearing secured to the base section of said boom
and engaging in said track for mounting said
base section of said boom for oscillation about
its own longitudinal axis, mechanism operatively
connected between said track and said base sec
tion for so oscillating said boom, and mechanism
operatively connected between said base section
and said extensible section for extending and
retracting said extensible section.
15. In material handling apparatus of the '
character described, a telescopic boom compris
ing a base section and an extensible section mov
able longitudinally relative to said base section,
ajscooping implement attached tosaid extensi
"ble section in ?xed orientation ‘relative thereto.
2,541,045
13
14
said base section comprising a plurality of spaced
parallel beam members, a bearing mounting said
REFERENCES CITED
base section for oscillation about its own longi
tudinal axis, a horizontal pivotal mounting for
said bearing mechanism for oscillating said base
section in said bearing, mechanism for tilting said
bearing and base section about said horizontal
pivotal mounting, and mechanism for extend
ing and retracting said extensible section.
16. An apparatus of the character described
having in combination a support, a platform
pivotally mounted on said support, hydraulic
means for rotating'said platform acting between
said platform and said support and operative
through an angle of not less than 180 degrees of
circular movement around its pivot, a telescop
ing boom comprising a base section and an ex
tensible section, means mounting said base sec
tion on said platform for boom oscillation about
an axis longitudinal of the boom, a horizontal 20
pivot for said base section mounted on said plat
form, hydraulic means for tilting said base sec
tion about said horizontal pivot, hydraulic means
for rotating said boom base section axially, hy
draulic means for extending said extensible 25
boom section, a material moving implement piv
otally mounted on said extensible section, and
means for moving said implement about its
pivotal mounting.
RAY FERWERDA.
KOOP FERWERDA.
The following references are of record in the
?le of this patent:
UNITED STATES PATENTS
Number
Name
Date
105,883
912,611
966,986
978,540
1,021,710
1,064,456
1,083,625
1,088,131
1,409,715
1,430,542‘
1,440,910
1,504,427
11,546,874
1,792,772
1,944,351
27,100,445
2,112,466
2,160,596
‘2,308,590
Bailey ____________ __ Aug. 2, 1870
Peterson _________ -_ Feb. 16, 1909
Barnett et al. _____ __ Aug. 9, 1910
Barnett ___________ __ Dec. 13, 1910
Stauft __________ __ Mar. 26, 1912
Dolan ____________ __ June 10, 1913
Litzenberg ________ __ Jan. 6, 1914
Lutz _____________ __ Feb. 24, 1914
Hecker __________ __ Mar. 14, 1922
French ____________ __ Oct. 3, 1922
Cole ______________ __ Jan. 2, 1923
Butler ___________ __ Aug. 12, 1924
Walsh ___________ __ July 21, 1925
Sheen ____________ __ Feb. 17, 1931
Landry __________ __ Jan. ‘23, 1934
Le Bleu __________ __ Nov. 3-0, 1937
Maloon __________ __ Mar. 29, 1938
Le Bleu __________ __ May 30, 1939
Douthitt _________ __ Jan. 19, 1943
2,348,796
Ferwerda et al _____ __ May 16, 1944