E. P. THOMAS.
SHOCK ABSORBER.
APPLscATloN FILED JAN.18,19|B.
1„313,763„
PatemedAug.19,1919.
l,
THÓEEAS, 0F CENTRALE., WASHIÍ‘XGTGÍQL
Specification of Lettere Eatent.
’Petemted ’fiel
Application. filed Iïeeuery le i915.- semi Nn. MM35.
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i o mit wfwf'n
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may Gemeen.
Intermediate the ends oí the ey
`
Be 1t known tet È, EDMUND P, THQMA'S, there are a set of ports 19 and i4 -,
e citizen of the United Sto tes, and e resi
' are spaced apart around 'the e c .Y
dent of cien'ti'eiie? iii ‘the county of Lewis terior
which eíîoijd
of thecommunication
cylinder and the 'hv
and State of "Wasi Í gtoo, have invented a
Which
is
formed
by the eyiiiidei“ 5 ,
new and lïmpï‘oved Sheik-Absorber, ef
‘g3-ofte
which the Íoiioïviiig is e '.îuîh dem; and exact easing 6. In addition to
‘19a there is another' set
deseri'lotie
i‘víy'ixiv
simiizu' “
object to provide ,end 20a which are also spaced et;
on has
'
1 e
es o
e shock ebsoï'bei‘ with :i novel/form of velve ‘the cylinder intermediate the
foi' eont‘roiiing the
e fiuid from c_vii‘nder. As Wili be eeen by ïefem‘i
e Cyìindei' threudi poets 'eediiig to e, by Fig. l’ of -the drawings, the ports?o
Se
pass, the valve being opei‘ehie iti-om without are disposed nearer the heet e.; ‘ t
t.
the shock absorbe?.
.
Aoothei' object of the in'ventieisii is to pio
to the head 8 and the
'i9 ‘
disposed nearer the heed 8 than
.
me
the heed 9. There are also poi'te ¿El zuid 22
cjydìnt'iei‘ which 'wiiì conti’oi the passage of in the cylinder 5 which ere disposedl hetw
e fini@ thi‘ough
in eccoi'dence with the port 19a and the head 8. The poid
and 22 and 19“ are disposed in ifo-w
‘
a predetermined ratio.
Stiii. anet'
object of the invention is to the How of e ñuid through the
vide :i waive means Í'oï‘ :i 'few et ports in the
Whiv
neem; fof: Connecting theJ be controlled by valve
form of e leef Spring secured
ite
.hie-2te ofi’ 'the invention will to the cylinder 5 adjacent the head
l
A
epi
ai' m
Seemed to the' other end 25 ezt
of the mvention 23, there is a memhei‘ 26 which ie il; po.
*ehewmgg specification, m
ltioli for engagement hy the end 2"? of „-_ `.
28 which meshes in e threaded oi‘iíif
m both of the the cesing 6. It will he uiidei‘etoof'î @eters refer to ein, iai‘
screw 28 maj? be turned, 'Ítem with
Íîgui‘es, in, which.u
F
i is
sectioned elevation oí the shock ebsorher to press iowerdiv
, ' ber 26 which will press t
ini/eration.ì and
direction of the ports 2ï,¿eQ2
Whieh.
is deeeribed.
the
`
ïn the dïitwinfe ., simile? i'efeï‘ence chaîn
le e. sectioned View on the hne- 2-7-2
,
ce
v
mi be
@Y
the cylinder
that
inasmuchadjacent
es the. votive
the
i
member 26 is secured to the ‘a
point spaced et considei'ehie die
from, when the valve
‘e .
end
in the Pasing G
4.36'
,were
e thread-
o 3 in which is Se
eonstï‘oction
seize i pie oi: md
mount
`.'fkispoeed m
o lá
the effiindeî.’
:deo die
`
the communication which p
the ports 22 :md 19“, and thaï
cation between the poi’t 22
`, end of the
,i
‘
being
lei Withiv- the
eo.
communication through
il there ie e simil
othei' ond et the e
efe disposed.
goo‘rt î.
'
municetion through the ‘
ïefer'enee to the port
’
,
ance with a predetermined
Én
similar manner e ve
construction to the valve
posed.
_
sti‘ieted with reference to 'me *o
inne? also be Seen that this i‘eeti'ietieifr. o
There is: pien
side
the he
eßf'iindeY
is moti
reiativeiy to the poi‘ts 2l, ‘2Q
munieation
he
restrictedthrough
to greater
the port
ext@ Qi..
it
cylinder 5 at 3i 'adjacent the “_
veive 30 controlling Communie
the ports 32 and 83 which _„
port 202e row of pori/Sì, To
`
1,313,763
of the valve 30, there is secured at 33 a mem
the cylinder having a row of ports, and valve
ber 34 which is operated by a- screw 35 mesh-` means operable from. without the shock ab
sorber for controlling the flow of a. fluid>
At
ing all
in times
athreaded
the valve
oriìice
30 restricts
36 in thecommuni
cas ng
through the ports in accordance with a pre
cation through the port 32 as compared determined ratio.
with the communication which is affordedv 2. In a shock absorber, a cylinder
through the port 33, and in the same manner
.I
'loA
having
i
two heads, one with an opening', a piston
the'valve 30 restricts communication through in the cylinder, a piston. rod secured to the
the port 33 relatively to the communication piston and disposedlthrough the opening, a
afforded through the port 20a.
'
casing forming with the cylinder a lay-pass,
lYhen the shock absorber is in use andA the cylinder having two rows of ports, one 75
the piston 13 moves in the direction of the row adjacent each of its heads, and two valve
head ,9, air is forced through the ports 20 means operable from without the shock ab
and' 20a and also through the ports 33 and sorber for controlling the ~liow of a fluid
32, provided that they are not closed by the through the portsin-accordanceìwith a pre
80
valve 30, until the piston 13 passes beyond determined ratio.
'
_ the ports, when the air or other Huid which
In a shock absorber, a cylinder having
may be used is compressed between the pis two heads,.one with an opening, a piston in
ton 13 and the- head 9 and a partial vacuum
20 is produced between the piston v13 and the the cylinder, a piston rod secured lto the pis
ton land disposed through the opening, a
head 8. @n the return movement of the pis casing forming with the cylinder a passage, 85
ton, the air. or other fluid is compressed be the cylinder having a row of ports, and a
tween the piston 13 and the head 8' and a valve means operable ‘from without the
partial vacuum occurs between the piston shock: absorber for controlling the flow of
13 and the head 9. By the adjustment of a fluid through the ports, the valve means
the valves 23 and 30, it is possible, when the being positioned angularly with relation to
shock absorber is used, to compress a larger the cylinder and normally adjusted in
90
volume of ai-r or other f'luid between'the pis- > wardly.>
Y
'
ton 13 and the heads 8 and 9, or when de
‘ 4. A shock absorber, having a piston dis-.
sired, it is possible to restrict the ports 20, posed in a cylinder with a by-pass of a plu
95
21, 32 andv 33 to delay the flow of the air
or other fluid through the ports when the
air or other fluid is compressed by the pis
ton 13 against the heads 8 and 9._
The outer end ot’ the piston'> rod 12 is
provided with a ball 37 'which is 'disposed
-
rality» of ports characterized by a leaf valve
securedat one- end to the cylinder and op
erable from without the shock absorber for
controlling the How of a fluid through one
of the parts.
„
« ‘
I
100
5. A vshock absorber having a piston dis
in a socket 38, Aformed by the' members 39
posed
in 'a cylinder connected with 'a by
and 40 which are .held in position relatively .
bytwo rows of ports, one row adjacent
to each other by the bolts 41, the member 39 pass
each Vend of the cylinder characterized by "
forming a part of a bracket 42 which may
two lead valves, each secured at one end to
besecured by any suitable means to the body p the cylinder, one beyond onevrow of ports 105 .j
and the other beyond‘the otherrow of vports
In the head 9 there is a threaded orifice 43 for controlling the vdow of' a fluid throughV
` of an automobile or other-vehicle.`
in which meshes athreaded stud 44 having a
ball 45 which is disposed in a ysocket 46
tl'ie ports.
l
`
6. rIn' a. shock'absorber, -a cylinder having 11o
formed by the members 47 -and 48 which are two
heads, one _With'an opening', a casin
held in position by bolts 49, the member 48 having
an oriñce and which forms with the
being connected with an aXle 'housing 50 or
a lay-pass, the vcylinder having
with som'e other portion of a ¿chassis or. the ports leading
to the by-pass, a piston inthe
running parts of a vehicle.
f
'
~cylinder, a piston rod secured tothe piston 115
.as illustrated in the drawings, the mem
“
` and disposed in the opening, a valve secured
ber 48 forms a part of an ellq'ow 51 having at one end to the cylinder _for
controlling
a` threaded shank 52 which meshes in a
the
flow
of
a
fluid
through
one
of
the ports,
threaded opening 53 in a bracket 54, having and a control member disposed `through
the
a detachable part 55, the bracket 54 and its
orifice for operating the valve.
`
‘_
detachable part 55 being secured around the
axle housing 50 by means of bolts 56.
12o
7. In a shock absorber, a cylinder having
tlwo heads, one with an opening, a casing
_Having thus described my invention, I having
an orifice which forms with the cyl- 5
claim as new and desire to secure by Letters inder a by-pass, the cylinder having
ports
leading
to
the
by-pass,
a
piston
in
the
cylin
125
l. ln a shock absorber, a cylinder having
a piston rod secured to the piston and
two heads, one with an opening, a piston in der,
the cylinder, a piston rod secured to the disposed in the opening, a leal’ spring se
Patent:
'
‘
cured at one end to the cylinder which acts
piston and disposed through the opening, a as
a valve forcontrolling the flow of a fluid,L
‘ casing forming with the cylinder a passage, through
one of the
ports, a control member 13oA
_
disposed through the orifice for operating posed around its sides, one set being nearer
the leaf spring7 and means on the leaf .spring one head than the other set, the cylinder
also having additional ports disposed be
for engagement hv the control menno/en
30
secured to the piston and disposed through
35
8.
a shock absorber, e cylinder having tween eaeh of the two sets of ports and its
two heads, one with an opening, a casing head, a piston in the cylinder, a piston rod
having an _oriî'ice which with the cylinder
forms e 'by-pass, the cylinder having ports
leading to the 'oy-pass, a piston in. the cylin
der, a piston rod secured to the piston and
secured in the opening,
leaf spring se
the opening in the head, and "alve means
operable from Without the casing for con
trolling the iiovv of a Huid through the said
additional ports in accordance With a pre
40
cured at one end to the cylinder for control'u determined ratio.
il. ln a shook absorber, a cylinder hav
ling the How of a >fluid through one oi' the
ports, a member secured at the other end of ing two heads, one with an opening, a cas~
the leaf spring and disposed longitudinally ingphaving an orifice ,forming with the cyl
thereof, and a control member disposed inder a ley-pass, the cylinder having tWo
through the oriiice and engaging the first
member for the purpose speeiíied.
9. A shook absorber, having,M a piston dis
posed in a eylinder, connected with a by»
sets of ports disposed around its sides,
one set being nearer one head than the other
set, the cylinder also having additional
ports disposed between the two >sets of ports
pass by plurality of ports characterized and its heads, a piston in the cylinder, a pis»
by a leerc valve secured at one end te the ton rod secured to the piston and disposed
cylinder and operable from Without the through the opening in the head, tWo valves,
shook absorber for controlling the flow of each seonred'at one of its ends to the cyl-'
e duid through the ports in accordance with inder for controlling the Íiow .of a ñuid
a predetermined ratios
~
through the additional ports, and control
it?. ln a shock absorbe-r1, a cylinder hav _means operable from Without the shock ab
ing two heads, one with an opening, a ras~ sorber for operating the valves.
ing forming with the cylinder a. bff-pass,f
the cylinder having two sets of ports dis
_l EDMUND P». reforms.