Improvements in Thill Couplings.
Year: 1896

page_text: Date of Application, 11th Aug., 1896
Complete Specification Left, 11th May, 1897-Accepted, 12th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Thill Couplings.
I, CHAUNCEY CICERO BROWN of Marquette, County Marquette, Michigan,
U.S.A., Bookkeeper, do hereby declare the nature of this invention to be as
follows:-
The thill or shaft coupling of this invention consists of a horizontal coupling
pin provided with an angular arm having a projecting part in a line with the body
of said pin; of a lever pivotted at one end to the said projection and provided
centrally with shoulders projecting from its lower edge; and of a spring plate
provided with a tongue cut out of the plate so that a slot is formed behind the
tongue, said plate being pivotted at its upper end to the said lever at a point
midway between the shoulders of the latter.
In using, the coupling pin is inserted into the lugs.of an axle.clip between which
lugs the shaft is engaged and the lever is then moved down carrying with it the
spring plate the tongue of which is brought to bear against the end of the thill or
shaft and keep it from rattling.
1
1800
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.
Improvements in Thill Couplings.
I, CHAUNCEY CICERO BROWN of Marquette, County Marquette, Michigan.
U.S.A., Bookkeeper, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The thill or shaft coupling of this invention is illustrated in the accompanying
drawing, Fig. 1 being a plan view of a coupling pin and a spring and lever
connected therewith, in the position said parts occupy when connected with the
parts to be coupled. Fig. 2 a plan view of the same parts in a position ready to
be inserted into the parts to be coupled. Fig. 3 a side view of a spring plate.
Fig. 4 a side view of the coupling clip connected to the axle of a vehicle and with
a shaft in place and giving also an end view of the coupling attachment inserted,
or in the position it occupies when the shaft is connected to the axle.
A is a metal coupling pin provided with an angular arm or extension a and a
shoulder or projection a' extending in a line with but in an opposite direction to
the coupling pin. B is a spring plate of steel or other suitable metal provided at.
one end with an aperture b and having a spring tongue 63 which is cut from the
central portion thereof, whereby an oblong slot b' is formed, and the end of the
tongue adjacent to the hole or opening b is free and the body portion is curved
outwardly, as shewn at 6, and the lower end of the spring plate is also curved
outwardly. as shewn at 6 in Fig. 4.

page_text: Connected with the end of the spring plate B is a lever C which is connected
with said plate by a pin or bolt C which passes through the central portion
thereof and through the hole or opening 6 in said plate, and one end of said lever
is pivotally connected with the shoulder or projection a' of the coupling pin A as
shewn at C, and formed thereon at each side of its pivotal connection with the
spring plate B are shoulders or projections C and said lever is provided with a flat
bearing or extension C³.
The rear end of one of the shafts of the vehicle is shewn at D in Fig. 4 and the
shaft is connected with a metal arm or plate, which is provided with a circular
head through which is formed a transverse hole or aperture d', and E is the clip
or yoke, which is connected with the axle of the vehicle and provided with lugs F
at one side thereof, through the sides of which are formed holes or apertures in
the usual manner.
The several parts, when constructed as herein described, are secured together or
connected with each other in the following manner :-The coupling pin A is
connected with the lever C at C³ as hereinbefore described, and the spring plate B
is connected with the lever C at C each of these connections being pivotal
connections, and when the three parts are thus connected the lever C is raised, as
shewn in Fig. 2, and the coupling pin A is inserted through the lugs F and through
the head of the arm of the shaft D, the head d³ of said arm being placed
between the lugs F as will be readily understood. The lower end of the spring
plate B is then inserted into the recess between the rear end of the head d³ and the
side of the clip E between the lugs F, and pressure on the lever C is then applied
to force the spring plate B downwardly, so that the outwardly curved portion of
the tongue will press outwardly at a point somewhat below the centre of the
head d of the arm d as shewn in Fig. 4 thereby forming an antirattler and
holding down the lever C which holds in place the coupling pin A thus making
a substantial and secure coupling. The shoulders or projections C on the lever C
rest within the recess formed by the lugs F and prevent any lateral strain upon
connection of the lever C and the spring plate B.
To remove or uncouple the parts, the lever C is raised, and this operation lifts
the spring plate and removes the tension and permits the easy removal of the
coupling pin A thus releasing the shaft D.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A thill coupling, consisting of coupling pin A provided with an angular arm
having terminal projection in line with the body of the said pin, a lever C pivotted
at one end to the said projection and provided centrally with shoulders C
projecting from its lower edge and a spring plate B provided with tongue b' and
central slot said plate being pivotted at its upper end to said lever at a point
midway between the shoulders of the latter, substantially as described and shewn.
Dated this 11th day of May 1896.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.