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Патент USA US2106343

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‘Jan. 25, 1938.
<;_ B_ DOREY
v '
RESILIENT BRAKE CONNECTION
Original Filed June 27; 1935
2,106,343
Patented Jan. 25, 1938
2,106,343 “
UNITED STATES PATENT OFFICE
2,106,343
REISILIENT BRAKE. CONNECTION
George B. Dorey, Westmount, Quebec, Canada
Application June 27, 1935, Serial No. 28,604
Renewed August 2, 1937
4 Claims.
(Cl. 74-582) '
My invention relates to-an improved resilient
provided with a slot l8, and intermediately with
brake connection for railway brakes and the
like.
An object of my invention is to provide a re
l5v silient extensible connection which will also be
capable of operating as a rigid compression
a cam portion [9 on which is adapted to wind a
member. .
Another object of my invention is to provide
an improved resilient connection which may
10 function as a complete self-contained unit and
be cheaply and readily assembled.
Still another object of my invention is to pro
vide a resilient connection especially adapted for
use in conjunction with a pivoted lever and par
15, ticularly where a slotted connection is employed
between the lever and the connection.
chain connection 20. The connection 20 is con
nected to the lever at 2| and extends therefrom
beneath the car to connect with the usual brake. 6
rigging parts (not shown).
_
Adjacent the upper portion of the car. there is
provided a hand brake winding arrangement in
dicated at A. Said brake winding arrangement
A includes a suitable housing 22, rigidly mounted 10
on the car structure and within the said housing
there is mounted a gear wheel 23, said gear
wheel having associated therewith a winding
drum
24.
I
‘
Rotation of the gear wheel is e?ected by means 15
of a pinion 25, which is adapted to be in con
Another particular object of my invention is
stant mesh with the gear wheel 23. Rotation of
to provide a resilient connection where friction
the pinion is e?ected by means of hand brake
between the parts is largely eliminated and the
20 sensitiveness of the spring to changes in load
is not impaired.
,
My invention further resides in certain details
of construction such as will be fully pointed out
hereinafter and claimed.
25 For further. comprehension of, my invention,
reference may be had to the accompanying
drawing wherein:
Figure 1 is a vertical, elevational side‘vie-w of
the end portion of a railway car showing my im
,-3_() proved connection incorporated in the hand
brake connections of a railway car.
Figure 2 is a vertical, elevational view showing
as much of the end of the car as will illustrate
the construction shown in Figure 1, as viewed
.35 from right to left.
Figure 3 is an enlarged detailed view showing
the resilient portion of the structure illustrated
in Figure 1.
Figure 4 is a view showing the structure of
'40 Figure 3, as viewed from right to left.
Figure 5 is a sectional plan view as seen on a
line 5-5 of Figure 4.
Figure 6 is a sectional plan view as seen on a
line 6-6 of Figure 4.
Referring now to the drawing l0 indicates the
end wall of the car, H the side wall, l2 the top
rail member of the end wall and [3 the end wall
bottom member. Rigidly mounted adjacent the
bottom of the end wall is a bracket M, with
50 which is pivotally associated a cam lever l5.
Said lever I5 is mounted with its pivotal end to
lie between walls l6—l6 of the bracket [4 and
is extended downwardly to present an extension
I1 projecting outwardly beyond the car end
55 wall, said extended portion atits outer. end being
wheel 26 and unwinding movement of the brake
is prevented by means of rachet and pawl mech 20
anism indicated at 21 and 28 respectively, the
latter being adapted to be operated from the
exterior of the housing by means of a weighted
lever 29 disposed outwardly of the hand brake
housing.
25
Extending between the hand brake winding
mechanism A and the lever I5 is a chain connec
tion B, having at one end thereof a resilient ex
tensible connection C. The chain is united with
the drum 24 by means of a pin or rivet 30 and 30
is adapted to wind on the said drum 24. Con
nection between the chain B and the connection
C is provided by a clevis 3|, the latter straddling
.the end of the connection C and united there
with by means of a rivet 32.v
35
The resilient connection C includes an elon
gated rod 33 which is preferably formed of a
round bar upset at its upper end to present a
flat tongue portion 34. The opposite endof the
rod 33 is preferably ?attened for an appreciable
distance as indicated at 35 and beyond said flat
portion the rod is upset to present laterally ex
tending shoulders 36, forming a T shaped head,
the said shoulder being preferably formed of a
width corresponding substantially to the diame
ter of the circularbar. Encircling the ?attened
portion 35 of the rod is a coil spring 31, said
spring being adapted to rest on the shoulders 36
of the rod.
Disposed at the sides of the rod are a pair of 50
yoke members 38—38. Each said yoke member
38 is provided with a shouldered portion 39,
which bears-on the opposite end of the spring to
that engaged by the sholuders 36 and said yoke
portions are eachprovided with a flat portion 55
2,
2,106,343
40 extending lengthwise beyond the shoulders
satisfactorily in compression as in tension and
36 and for an appreciable distance beyond the
the necessity of this rod operating as a com
spring to thereby present the spaced jaws of a
clevis-like structure. Said respective clevis por
pression member will be noted by reference to
Figure l of the drawing wherein it will be seen
that the connection between the resilient con
nection and the lever is through the medium of a
slot IS, the weight of the rod and the associated
parts in this construction being available to as
sist in releasing the brake rigging by acting in a
downward direction to induce movement of lever
in a clockwise direction and thereby relieving the
tions are spaced apart a sufficient distance to
straddle the end of the lever l5 and. the parts
are maintained in such spaced relation by means
of a separator 4| which is united with the re
spective parts of the clevis by means of a rivet 42.
The said projecting clevis portions 40 are
formed with an enlarged ?at portion 43 lying
beyond the separator, the said respective parts.
43 of the pair being provided with transversely
tension on the chain 20.
The rod 33, is centered in all directions with
aligned openings 44—44 for receiving a pin 45' ' respect to the spring by reason of the segmental
whereby connection is effected withthe lever l5,» shape-yoke members conforming substantially to 15
The ?at portions 40 and enlarged portions 43 the inner curvature of the coil spring and the ?at
which lie beyond the spring are generally-formed ' portion" 12ll'of the bar being formed of a width
of greater width than the inside diameter of the
spring and consequently when assembling the de
20 vice it is necessary for the separate parts of the
pair vof yoke ‘members '38 to be ‘individually
threadedthrough the spring, the shoulders 39 and
the shank portions 46 of the yoke members being
corresponding to the inside diameter of the spring.
While I have shown a preferred embodiment of
my invention it will be understood that the same 20
is merely illustrative and I claim all modi?ca
tions coming within ‘the scope of the appended
claims.
so formed and proportioned as to readilypass
through the spring when the pair of yoke members
are disposed side, by side.‘ After the yoke mem
bers have been inserted through the spring a
sufficient distance for the shoulders 3_9—'-39 to
clear the end of the spring, the said pair of yoke
‘ members are spaced apart bringing the shoulders
in'bearing relation with the coil spring and said
spaced'relation of the yoke members is maintained
by inserting the rod centrally between the said
Y. members; it beingpunderstood that the tongue
portion 34 of the rod is of a size to permit of its
I
What I claim is:—
v 1. As an article of manufacture, a resilient ex
movement relatively to the rod; shoulders on the
rod and clevis respectively; a spring encircling
the clevis and interposed between the shoulders 30
of the said rod and clevis, said clevis being formed
of two parts, each disposed on opposite sides of
the rod and formed with an enlarged portion pro
jecting beyond the rod, said enlarged portion being
adapted ‘to receive a pin for connection with an
ready passage through the inside of the coil spring.
adjacent connection; and a separator lying be
'The shank portion 41 of the yoke members is
preferably of segmental shape, the outer surface
tween the end of the rod and the said pin, said
\ being‘ curved as indicated: at 48 to correspond to
the inside curvature of the spring ‘and the op
separator being rigidly united with the pair of
clevis parts and acting as a separator to restrain
impingement of the clevis parts on the rod.
posite vor inner surface being ?at as indicated at
7
49. The’ two yoke members are further main
tensible‘ connection including a rod having at one
tained in spaced relation by the separator which
preferably is of a triangular shape formation with
ment relatively to the rod; shoulders on the rod
45 one side of the triangle ‘bearing against the lower
part of the shoulder 36; said v‘separator is‘ fur
ther maintained against turning movement, on
the pivotal axis of the- rivet 42 by reason of ?at
ridge portions 50 'which extend parallel with and
50 engage the ?at surface 49 of the separator. The
separator 4| operates to space the inner flat wall
portions of the yoke members su?iciently to pre
vent binding between the yoke pieces and the
rod 33, as well as providing adequate clearance
a, between the pivoted lever l'5i'and the clevis por
tion‘40’ of the yoke members.
' ‘
25
tensible connection including a rod having at one
end thereof. a clevis ,mounted for lengthwise
2. As an article of manufacture, a resilient ex
end thereof a clevis mounted for lengthwise move
and clevis respectively; a spring encircling the '
clevis and interposed ‘between the shoulders of
the rod and clevis; said clevis being formed of two
parts, each disposed on opposite sides of the rod
and formed'with 'a portion projecting beyond the
rod for attachment with an adjacent member;
and a separator lying between and united with
the pair of clevis parts by means of a member
passing through said pair of yoke members and
separator; and interengaging means between said
yoke members and separator to prevent turning
movement of said separator about its connecting
‘
In adevice of this character ‘wherein there is
considerable play in the connections between a
lever and the associated jaws it is highly desir
member. "
'
3. As an article of manufacture, a resilient con
nection entering in the brake system of a rail
60 able that the resilient connection should be free
way car and the like and adapted to resiliently
unite'two parts, said connection including a rod
rod should function with the reliability of a rigid having at one end thereof an eye for connection
one piece structure and therefore the coil spring ' with one of the parts and having at the opposite
is placed under a slight initial compression, such end laterally extending shouldered portions; a
from objectionable rattling and that the jointed
initial compression being maintained by having
the separator 4| bearing directly against the
shoulder 36 ‘of the central ‘rod.
'
‘
Y
My invention is such that, for all'practical pur
poses, a rod operates with the same freedom as if
the :jaws were formed integrally therewith and
only when a tension strain exceeding the tension
provided by the compression of the-spring, does
the rod operate as a resilient connection.
Another further advantage of my construction
‘resides in the fact that "the rod operates equally
coil spring encircling the rod and adapted to bear
at one'end against the shoulder of the rod, said
spring being of an inside diameter to permit
threading of the eye therethrough; a pair of
shouldered yoke members adapted to bear on the 270
opposite end of the spring, said yoke members
being disposed on opposite sides of the rod and
extended through the spring to present project
ing portions lying beyond the shoulder of the rod;
a separator adapted to be positioned between
‘said projecting portions of the yoke and united
2,106,343
therewith thereby presenting a olevis having a
pair of spaced arms adapted to receive therebe
tween and connect with the other of the parts.
4. As an article of manufacture, an extensible
connection including a rod; a pair of yoke mem
bers movable lengthwise of the rod and disposed in
spaced relation on opposite sides of the rod;
shoulders projecting laterally from the yoke mem
bers and rod respectively; and a coil spring en
10 circling the yoke members and interposed between
said shoulders of the rod and yoke respectively,
said yoke members being extended beyond the
spring and there formed with flat portions of
3
greater width than the inside diameter of_ the.
spring for connecting with an adjacent member;
means for maintaining the said yoke members in
spaced relation, said means including a separator
interposed between and united with the pair of
yoke members, said shoulders of the respective
yoke members being of a. shape and size as to per
mit of the individual members of the pair being
separately threaded into place through the spring
and thereafter locked in place by being spaced
apart and maintained in such spaced relation by
the rod and separator.
GEORGE B. DOREY.
10
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