Car Coupling. Page: 2 of 3
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UNITED STATES PATENT OFFICE
KELSEY L. POWER, OF MOODY, TEXAS.
CAR-COUPLING.
SPECIFICATION forming part of Letters Patent No. 366,873, dated July 19, 1887.
Application filed March 30, 1'87. Serial No. 3'003. (No m del.)To all whoa it nmay econcernz:
Be it known that f, KELSEY L. POWER, a
citizen of the United States, residing at Moody,
in the county of McLennan and State of Texas,
5 have invented new and useful Improvements
in Car-Couplings, of which the following is a
specification.
This invention has for its object to provide
a novel car-coupling pin and means for oper-
to ating the same to automatically couple cars
through the medium of ordinary links without
the use of triggers located within the draw-
head and struck by the entering link to re-
lease the coupling-pin.
15 The invention consists, essentially, in a ver-
tically-movable coupling-pin adapted to ro-
tate axially in the pin-hole of the draw-head,
and having a wing or lug for supporting it in
its elevated position, combined with a yield-
20 ing draw-head having a vertical slot to receive
the wing or lug and a shoulder to support the
same, and means operated by the yielding
draw-head for acting on the wing or lug to ro-
tate the pin and bring said wing or lug in co-
25 incidence with the vertical slot, whereby the
pin will automatically drop into engagement
with the coupling link.
The invention consists in other features,
which will be hereinafter described and
30 claimed, reference being made to the accom-
panying drawings, in which-
Figure I isa perspectiveview of acar-coup-
ling embodying my invention, showing the
coupling-pin supported in its elevated position
35 for automatically coupling cars; Fig. 2, aver-
tical sectional view :taken centrally through
the diagonal slot in the draw-head; Fig. 3, a
plan view showing the position of the parts
when the draw-head has come in contact with
40 the draw -head of an adjacent car and the
coupling-pin has been rotated to automati-
cally drop; Fig. 4, a detail perspective view
of the coupling-pin and the slide used for ro-
tating it.
45 In order to enable those skilled in the art to
make and use my invention, I will now describe
the same in detail, referring to the drawings,
where-
The numeral 1 indicates a draw-head hav-
50 ing the usual mouth, 2, for the entrance of the
coupling-link 3 and acting upon a spring, 4,at its rear in any suitable manner, so that
it can yield longitudinally both forward and
backward. The manner of employing a spring
to permit a draw-head to yield is well known, 55
and therefore requires no further explanation,
especially as I do not confine myself to any
special means for accomplishing that purpose.
The draw-head is provided with a diagonal
or oblique vertical slot, 5, terminating at its 6o
lower end in shoulders 6, and at the top the
draw-head is recessed to provide flat seats 7
and an elevation, 8, having a cylindrical or
other suitably-shaped orifice, in which is lo-
cated a slide-rod, 9, the rear end of which is 65
connected with a stationary part, 10, of the
car platform or frame, as by means of a loop,
11, with which the bent end 12.of the rod
loosely engages.
The coupling-pin 13 is cylindrical, and, as 70
shown, is provided with two lateral wings or
lugs, 14, that rest upon the seats 7 when the
pin is raised and turned into proper position
for this purpose, thereby holding the pin ele-
vated until the draw-heads of the cars come 75
together, when they will yield and thereby
cause the slide-rod 9 to act by its front end
upon one of the wings or lugs of the coupling-
pin, and turn or rotate the latter, so that said
wings are brought into coincidence with the 8o
oblique slot 5, when the pin will drop and en-
gage the coupling-link. The pin in its descent
is arrested by the wings 14 coming in contact
with the shoulders 6 at the lower end of the
slot 5. I do not confine myself to two wings 85
on the pin, as obviously one wing can be used
and accomplish the desired result; but two
wings are desirable, in that they support the
pin in a true perpendicular position, so that
it is not liable to catch or bind in thepin-hole. 90
After the draw-head has yielded rearwardly
and the slide-rod is caused to protrude from its
seat in the elevation 8 and the cars are coupled
the draft of the train will cause the draw-head
to move forward, thereby restoring the slide- 95
rod to its normal position. This is effected,
as shown, by the engagement of the slide-rod
with the loop on a fixed part of the car-frame;
but obviously the same result could be accom-
plished by other means without engaging the too
slide-rod with a loop-as, for instance, by a
spring to retract the slide-rod after it has been
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Power, Kelsey L. Car Coupling., patent, July 19, 1887; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171580/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.