Improvements in and relating to Car Couplers.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Car Couplers.
I, RICHARD SUTTON ROBERTSON, a citizen of the United States of America,
residing at Castle Gate, in the County of Emery and Territory of Utah, United
States of America, Gentleman, 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 :-
This invention relates to certain new and useful improvements in car couplings
and is designed as an improvement upon the construction shown and described in
my British Patent No. 19,346, dated March 28th, 1892. Among other objects in
view, is to simplify and cheapen the construction and to simplify and cheapen the
device for uncoupling when desired. I dispense with the link connecting the pin
with the pivoted arm, and curve the said arm and connect it directly with the
upper end of the pin. Numerous parts necessary by the prior construction are
dispensed with altogether, or simplified in their connection and operation. The
interior of the mouth of the draw-head is provided with a lug to limit the movement
of the dog.
Other objects and advantages of the invention will hereinafter appear and the
novel features thereof will be specifically defined by the appended claims.
The novelty in the present instance resides in the peculiar combinations, and the
construction, arrangement, and adaptation of parts, all as more fully hereinafter
described, shown in the drawings, and then particularly pointed out in the appended
claims.
The invention is clearly illustrated in the accompanying drawings, which, with
the letters of reference marked thereon, form a part of this Specification, and in
which―
Figure 1 is a perspective view of a car coupling device embodying my present
invention. Figure 2 is a central vertical section of the same, with parts in side
elevation.
Like letters of reference indicate like parts in both of the views.
Reference now being had to the details of the drawings by letter, A designates
the draw-head substantially of known construction, having a flaring mouth and
chamber a within which, at the front end, is a lug a¹, as seen in Figure 2, the
object of which will soon appear.
B, is the dog pivoted within the mouth of the draw-head upon a pivot 6 fixed in
the walls of the draw-head, the end of the dog having a slot 6' as shown, which
permits of the required movements of the dog, and the horizontal portion of the
dog is weighted as seen at 62, or enlarged, to aid in its gravitating to position to
lock the link, and when the dog is down, so as to engage and hold the link C, the
end of this dog engages the lug a' within the mouth of the draw-head and prevents
further movement of the dog, thereby serving to hold it against unrequired
movement and at the same time will prevent it from being thrown out of operative
position.

page_text: The pin D works in a suitable passage or opening provided therefor in the top of
the draw-head, and instead of being connected by link with the pivoted arm it is
connected directly thereto by a suitable pivot c, the arm being curved as shown,
and itself pivoted between suitable lugs d on the upper face of the draw-head;
this saves the use of the link, simplifies the parts and makes them more positive in
their action and less liable to become inoperative.
In order to provide for uncoupling when desired, I have devised the following
mechanism which is very simple and cheap, yet most effective for the purpose for
which it is intended.
F is a transverse shaft journalled in suitable bearings and it has firmly connected
thereto or rigid therewith an arm G, which extends at right angles thereto and has
attached thereto one end of a chain H, the other end of which is connected with the
curved arm D', as shown.
The shaft F is journalled so as to move end wise in its bearings, and in order to
lock the shaft in either its vertical or its horizontal position one of its bearings is
provided with a horizontal groove g into which the said shaft is forced as it is
turned in its horizontal position, as seen in Figure 1; when the shaft is turned
vertically it is drawn outward by reason of its engagement with the wall of the
bearing, riding upon the curved surface of the lower wall of the groove, and it is
thus drawn outward to its fullest extent and the frictional engagement is sufficient
to hold it in that position.
The operation will be readily understood from the foregoing description when
taken in connection with the annexed drawings, and a detailed description thereof
is not deemed necessary.
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 :-
1. The combination with the draw-head provided with a lug within its mouth, of
a pivoted dog having an enlarged end adapted to engage said lug, and having
vertical arm with elongated slot in which the pivot works, as set forth.
2. The combination with the draw-head having mouth with lug, of the pivoted
dog having vertical portion with slot for the pivot, and having end to engage said
lug, the pin and the curved arm connected directly with said pin, as set forth.
Dated this 28th day of April 1893
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.