Thill Coupling Page: 2 of 3
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No. 731,721.
UNITED
STATES
Patented June 23, 1903.
PATENT OFFICE.EDGAR TRAINER, OF SAN ANTONIO, TEXAS.
THILL-COUPLING.
SPECIFICATION forming part of Letters Patent No. 731,721, dated June 23, 1903.
Application filed October 18, 1902. Serial No. 127,855. (No model.)'o all whom it may concern:
Be it known that I, EDGAR TRAINER, a citi-
zen of the United States, residing at San An-
tonio, in the county of Bexar and State of
5 Texas, have invented certain new and useful
Improvements in Thill-Couplings; and I do
hereby declare the following to be a full, clear,
and exact description of the invention, such
as will enable others skilled in the art to
o which it appertains to make and use the same.
This invention relates to .devices for pre-
venting the rattling of hills for vehicles,
known as "antirattlers" for hills, and has
for its object to provide a device of this char--
5 acter which will be efficient,:durable, and
economical. These devices generally consist
of a piece of rubber or metal so placed be-
tween the rear end of a thill and the connec-
tion of the hill with the axle of a vehicle as
20 to have a cushioning effect and prevent the
thill from rattling.
This invention consists of an antirattler
for thills constructed and arranged as here-
inafter set forth and claimed.
25 Referring to the accompanying drawings,
in-which similar figures of reference refer to
like parts, Figure 1 is aside view of the coup-
ling. Fig. 2is a detail view with parts broken
away. Fig. 3 is a detail view of the spring-
30 plate.
In carrying out this invention a metallic
plate 1 is provided which will be termed the
"draft-plate" and which is formed at its for-
ward portion with an opening 2, through
35 which extends the rear curved portion of a
thill 3, having at its end a curved portion 4
for a purpose hereinafter explained.
5 is a U-shaped strap mounted on a vehi-
cle-axle 6 and having its depending ends 7
4o and 8 extending through holes 9 in the rear.
portion of the plate 1.
10 is a spring-plate of metal which is lo-.
cated beneath the plate 1 and which is held
in place by nuts 11 and 12 on the depending
.5 ends 7 and 8 of the straps 5, projecting
through holes 13 and 14 in the rear portion
of the plate 10.. At the rear portion of the
plate 10 on its upper surface it is preferably
formed with a transverse rib or band 15,
5o which bears against the under side of the
plate 1 and serves as a fulcrum for the.plate
10, as more fully hereinafter set forth. Theforward portion of the plate 10 projects be-
neath the forward parts of the plate 1 and
serves as a yielding or elastic bearing for the 55
rear end of the thill 3, its curved portion 4
resting thereon and in the movement of the
hill adapted to rock thereon, the opening 2
being of such a size as to permit of this move-
-mnent. At the same time of this movement 6o
the plate 10, in addition to its elastic or spring
movement at its forward end, has a rocking
movement, due to the ribs 15 serving as a ful-
cram, the holes 13 and 14 in the plate 10 per-
mitting of this rocking movement. By this 63
means the yielding movement of the plate 10
is enhanced, while the elasticity of the for-
ward portion of the plate 10 serves to produce
a cushioning effect in the thill 3. Should the
plate 10 become loose by wear or should a 70
greater or less tension or elasticity be re-
quired for the spring-plate 10, this may be
effected by the adjustment of the nut 11.
It will be seen that by means of this inven-
tion not only is a simple, effective, and eco- 75
nomical device provided, but also that the
thill may be connected to the axle by simply
slipping it into place without any nut or extra
fastening being required, and that in the
same way it may be quickly and readily de- go
tached. So, also, if the spring-plate 10 be-
comes worn out or broken a new plate may
be readily supplied, which is also true of the
plate 1.
The thill 3 is detached from the plate 1 8;
simply by raising its forward end up suffi-
ciently to enable its rear end to be drawn
through the opening 2 in plate 1 and is put
back in place by a reverse operation.
The plate 1 is termed the "draft-plate," 90
since, as will be seen, it serves as the draft
connection between the thill and -axle.
If desired, the spring-plate may be used
simply as a spring-plate and the rocking fea-
ture dispensed with by changing the bead to 95
a square shape.
The strap 5 is formed with shoulders 5',
which rest on the plate 1 and prevent the
strap from slipping or turning on the axle,
thereby maintaining the spring-plate 10 in io>
its proper position.
Having thus described my invention, I
claim and desire to secure by Letters Pat-
ent-
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Trainer, Edgar. Thill Coupling, patent, June 23, 1903; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth514835/m1/2/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.