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Патент USA US2110575

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8, 193.
2,11,575
v, H, HARBERT
BRAKE HEADWEAR RECEIVING ELEMENT \
Filed Dec. 16, 1932
2 Sheets-Sheet l
6..
(Witnesses -
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arch 81%, 1938.
V. H. HARBERT
BRAKE HEADWEAR RECEIVING ELEMENT
Filed Dec. 16, 1952
ZJTMSW
2 Sheets-Sheet 2
Inmfentor
2,110,575
Patented Mar. 8, 1938
UNITED" STATS
AT
T OFFIQE
2,110,575
BRAKE ‘HEAD WEAR RECEIVING ELEMENT
Victor H. Harbert, Chicago, 111., assignor to Illi
nois Railway Equipment Company, Chicago;
111., a corporation of Illinois
Application December 16, 1932, Serial No. 647,579
13 Claims. (Cl. 188-242)
My invention relates to means adapted to be
applied to the standard type of brake heads,
lugs to permit easy application or reception of
the shoe lug therebetween.
whereby the wear which is encountered by the
As the shoes are of harder metal than that of
the heads, the constant vibration or up and down
movement of the shoe during car operation and a
brake application causes the head lug l2, espe
cially, to soon become excessively worn. As a
shoe supporting lug of the headwill all be taken
5
care of or absorbed by my improved wear receiv
ing element made of metal best adapted for such
purpose.
My invention contemplates means which may
be easily applied to a brake-head and which at
10 the same time can be removed and replaced should
occasion require; the element involving integral
result, the utility of the head is destroyed and
replacement of the entire head required; or
formation of new lugs by welding made necessary. 10
This, of course, also results in car service loss
portions whereby the element will be firmly locked
on the brake-head lug; the element at the same
brake conditions.
7 N time affording a binding contact with the usual
‘15 shoe locking key.
,
The objects and advantages of my invention
will be fully understood and comprehended from
the detailed description of the accompanying
drawings, wherein:
Figure 1 is a side elevation of a brake-head and
shoe locked in place and provided with my im
proved element.
Figure 2 is a front or face elevation of the
brake-head‘ with the wear receiving element
25 shown in Figure 1 applied to the supporting lug.
Figure 3 is a cross sectional View of the brake
head lug and wear receiving element shown in
Figures 1 and 2.
Figure 4 is a perspective view of the supporting
30 lug portion of the brake-head.
Figure 5 is a perspective view of the element
adapted for'use on the brake-head lug shown in
Figures 1 to 4.
Figure 6 is a perspective view of a modi?cation
3 01 in the brake-head lug.
Figure 7 is a perspective view of. a modi?ed
form of the wear receiving element adapted for
application to the type of lug shown in Figure 6.
My improved wear receiving element is intended
40 for the standard brake-heads and shoes at pres~
ent in use and is especially intended for applica
tion to new heads, although it may be equally as
well applied to brake-heads in use which have not
become excessively worn.
45
Brake-heads, intermediate of their ends, are
provided with a pair of spaced apart lugs as shown
in Figures 1 and 2 at it) and BI, to receive the
shoe lug i2 therebetween, see Figure 1.
These three lugs have slots disposed vertically
therethrough;-~the slots in the head lugs being
shown at it in Figure 2;—~to receive the usual
shoe locking key M.
The brake-heads are usually of cast metal con
55 struction with more or less tolerance between the
and hence increased expense due to defective
1
My invention contemplates the provision of a
wear receiving element l5, interposed between 15
the lower face of the shoe lug l2 and the wear
receiving upper face of the supporting lug ll of
the brake-head; namely an element which may
be made of heat treated or suitably hard steel
adapted to resist the wear generally caused by
the shoe lug; while at the same time providing a
?rmv or snug ?tting relation between head and
shoe 'so- as to eliminate the usual play between
these elements.
,
My improved wear receiving element l5, as dis- '
closed in the ?rst ?ve ?gures of the drawings,
involves a ‘rectangular metal plate of suitable
thickness and of width commensurate with the
transverse depth of the head lug l I.
This plate I 5, of proper metal or steel, is formed '
with downwardly and somewhat inwardly bent
ends 116, I 6%. As the head lugs are formed with
the ends I‘! sloping outwardly toward the rear or
body of the. head (see Figures 2 and 4), the plate
i5 is preferably formed with the front longitudi- 1
nal side l5a of length less than the other or oppo
site longitudinal side; the difference in length ‘
between the two sides corresponding to the dif
ference in transverse dimensions between the
forward or outer end of lug H and the rear or
attached end thereof.
The opposite ends I‘! of the head lug H are
each provided with a cut-in portion or groove as
at E8, which are adapted to receive the down
turned ends l6, Ita of the plate I5. These grooves 45
I8 permit the plate to be slid onto the lug H,
from front to rear.
In order to lock the plate l5 against movement
toward the outer end of the head-lug l I, after the
plate has been completely forced into place, at
0
least one of the ends of the plate is slit in a lon
gitudinal direction, between the two longitudinal
sides, so as to provide the tongue 19; the tongue
forming portion being made of length less than
the remainder of the plate so as to terminate sub
55
2
2,110,575
stantially at the beginning of the bent portion 0
embodiments of my invention and have described
the plate forming the bent end IBe.
~
In order to receive the. tongue I9, the corre
the same in terms employed for purposes of de
scription and not as terms of limitation, as modi
sponding end of the head lug II is provided with
?cations are possible and may be made without,
however, departing from the spirit of my inven
tion.
What I claim is:
the cut-out portion or socket 243, see Figure 4,
(sloping downwardly toward the end of the lug).
The downwardly bent ends I6, use of the plate
I5 are intended to ?rmly engage in the grooves I8,
E8, to hold the plate against up-and-down move
ment or play; and after the plate l5 has been
?rmly driven or slid onto the lug II, the tongue
I9 is then driven into a declining position as
shown in Figures 3 and 5, namely into the socket
20. As the tongue I9 is substantially of the same
width as the socket 2B, the tongue will contact
with the side walls of the socket 2B and prevent
forward sliding movement of the plate. The
brake-head is then ready to receive the shoe-lug
I2; the plate I5 being provided with the key re
ceiving opening or slot 2| adapted to register with
the slot IS in the head and a slot which is formed
in the shoe-lug l2.
In Figures 6 and '7 I illustrate a modi?cation
of the invention, with the brake-head lug Ila
25 having its ends provided with similar grooves I8,
I8, as in the previously described construction.
In Figure 6, the opposite end walls of the shoe
fastening key receiving slot l3, are each provided
at top with a forwardly declining socket 22, so as
30 to provide an abutment or shoulder at 23.
The plate for this construction of head lug is
shown in Figure '7; the plate 24 being practically
of the same general construction as the plate I5,
except that the downwardly disposed ends 25, 25
35 are left integral throughout and not provided
with the end tongue I9.
Plate 24 is preferably made of tempered spring
steel; and at opposite ends of the shoe key receiv
ing slot 26, partially severed portions or tongues
40 21, 21 are provided.
45
50
55
60
-
The metal is out so» the tongues 21, 21 may b
bent downwardly toward the shoe or forward
longitudinal side of the plate in order that the
free downwardly disposed ends of the tongues
21, 21 will engage the shoulders 23, 23 at opposite
ends of the key slot I3 in the head lug I la.
With plate 24 formed of suitable spring steel,
the plate may be driven onto the head lug Ila,
with the ends 25, 25 seated in the lug grooves I8,
I8; the ends of the tongues 21, 2‘! riding across
the top of the head lug IIa until the slot 25 of
the plate registers with the slot I3 of the head
lug, at which time the tongues 21, 2'! will snap
down into the inclining sockets 22, 22 and abut
against the shoulders 23, 23. The bent ends 25
and the tongues 2'! will hold the plate 24 ?rmly
on the head lug against movement.
As is apparent, the plates I5 or 24 will not only
prevent undue vertical movement of the shoe, but
will absorb all wear heretofore caused by the shoe
1. A brake-head wear receiving element com
prising, in combination with a brake-head lug
having a key receiving slot and grooved ends; a 10
plate coextensive with the upper face of said lug
and having a key receiving slot, the ends of the
plate being disposed downwardly and inwardly to
engage in the grooved ends of the lug.
2. A brake-head wear receiving element com 15
prising, in combination with a brake-head lug,
opposite ends whereof are grooved from front to
rear; a plate having downwardly and inwardly
disposed ends adapted to enter and form grip
20
ping relation with said grooved ends of the lug.
3. A brake-head wear receiving element adapt
ed to be disposed on the upper face of a brake
head lug provided with a socket in its upper
face and comprising a plate provided with a
downwardly ?exible tongue adapted to engage in 25
said socket and thereby secure the plate against
displacement.
at. A brake-head wear receiving element adapt
ed to be disposed on the upper face of a brake
head lug and comprising a plate having down 30
wardly disposed ends adapted to form gripping
relation with opposite ends of the lug and having
a downwardly ?exible tongue adapted to provide
locking engagement between the lower face of
the plate and the upper face of the head lug.
5. A brake-head wear receiving element com
prising a plate adapted to be disposed on the up
per face of a brake-head lug and provided with
downwardly and inwardly disposed ends and a
downwardly ?exible tongue intermediate of the 40
ends of the plate.
.
6. A brake-head wear receiving element com
prising a flat plate adapted to be disposed on the
upper face of a brake-head lug provided with a
socket in the upper face, said plate being provided 45
with a bendable portion adapted to engage in the
lug socket so as to prevent movement of the plate
toward the outer end of the head lug.
'7. A brake-head wear receiving element adapt
ed to be disposed on the upper face of a brake 50
head lug, comprising a ?at plate provided with
downwardly disposed ends, the plate adjacent one
of the ends being longitudinally slit to provide a
bendable tongue.
8. A brake-head wear receiving element adapt 55
ed to be disposed on the upper face of a brake
head lug, comprising a flat plate provided with a
brake-shoe key receiving slot and a portion of the
plate at the end of the slot partially severed to
provide a downwardly ?exible and forwardly pre 60
and as a result enhance the life of the brake
head.
In order to more rigidly hold the shoe in snug
relation with the head, the transverse width of
65 the slot 2| in plate I5, and slot 26 in plate 24, is
preferably made less than the width of the slot
I3 in the head, so that the shoe fastening key
sented tongue.
I4 will bear against one side of either slot 2i or
26 and not only prevent wear in the wall of the
70 slot I3 in the head lug, but also provide a greater
binding relation with the key, as the forward wall
of the plate slot, 2I or 26, is arranged to be dis—
10. A brake-head wear receiving element
adapted to be disposed on the upper face of a
posed slightly rearward of the forward‘ edge of
the slot l3 in the head lug.
I have shown what I believe to be the simplest
75
9. A brake-head wear receiving element adapt
ed to be disposed on the upperface of abrake-head
lug, comprising a flat plate provided with a. brake
shoe key receiving slot, with portions of the plate 65
at opposite ends of the slot provided with down
wardly flexible and forwardly presented tongues.
brake-head lug, comprising a flat plate provided 70
with a brake shoe key receiving slot and with
a downwardly ?exible and forwardly presented
portion, the ends of the plate being bent down
wardly in inwardly inclining directions.
ll, A brake-head wear receiving element com— 75
3
2,110,575
prising, in combination with a forwardly tapering lug, while a portion of the plate is partially sev
break-head lug whose opposite ends are provided ' ered to provide a bendable tongue adapted to en
with grooves disposed from front to rear ‘and the
upper face of the lug providedwitharecessformed
to provide a vertical shoulder at the forward side
of the recess; a flat plate having downwardly
bent ends converging toward the forward longi
tudinal side of the plate and adapted to engage
in the grooves of the head lug, a portion of the
10 plate being partially severed to provide a bend
able tongue adapted to enter the lug recess and
abut against said vertical shoulder.
12. A brake-head wear receiving element oom~
prising, in combination with a forwardly taper
15 ing brake-head lug whose opposite side walls are
each provided with a groove disposed from front
to rear and the upper face at one end of the lug
provided with a declining recess; a flat plate
whose opposite longitudinal sides are of unequal
20 length and the ends bent downwardly and con
verging inwardly toward the front longitudinal
side of the plate, said ends being adapted to slide
lengthwise of the grooves in the ends of the head
gage in the recess of the head lug.
13. A brake-head wear receiving element com
prising, in combination with a brake-head lug
tapering forwardly and withthe opposite sidewalls
each provided with a groove extending from front
to rear of the lug, the lug having a key receiving
opening therethrough, with the end walls of the
opening on the upper face of the lug having re
cesses sloping downwardly toward the front; a?at
plate whose opposite longitudinal sides are of un
equal length and the ends of the plate bent down
wardly and converging inwardly toward the front
side of the plate, said ends being adapted to slide
lengthwise of the grooves in the lug sides, said
plate having‘ a key receiving opening adapted to
register with the opening in the lug and portions
of the plate at opposite ends of its opening pro
vided with tongues sloping downwardly toward
the front of the plate and adapted to engage in
the lug recesses.
'
VICTOR H. HARBERT.
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