Year: 1894

page_text: Date of Application, 30th July, 1894-Accepted, 10th Nov., 1894

page_text: free to revolve.
This exterior sleeve carries a worm wheel d' into which meshes a
worm mounted on a horizontal spindle D' suitably supported in the carriage frame
and having at its end a hand wheel D. The frame or loop of the bar a at a¹ is of
sufficient dimensions and placed in such position under the hook g, that when this
hook and the hook of the carriage to be coupled onto the said carriage fall down to
connect up the cars, both the said hooks shall pass through the said loop or
frame a'. The loops or frames a¹ of the several cars are so arranged that when the
cars are run together to be coupled, the two adjacent frames lie one over the other
as shown at Fig. 2, sufficient play being left in the relative positions of the two
loops to allow for the difference in the height of the cars, caused by the possible
variation in the loading of the said cars, whereby one would be lower than the
other. A play of about 3 to 4 inches will be sufficient so that no matter to what
extent either one or other of the cars may be loaded with regard to the other the
loops will always have room to pass each other and overlap. The operation of the
device is as follows:-
When the carriages are run together to be coupled the hooks 9 are both in
the position shown at the right hand side of Fig. 2 the loops or frames a¹ a¹
overlapping each other. On turning round the spindle h the excentric B will be
thrown over and let down the hooks g g which pass through the loops a',
simultaneously however the hooks i at the opposite side of the excentrics will be
thrown over the shoulders of the hook shanks g and retain the same in position.
By turning the hand wheel D the bars of the frames a¹ will be tightened up against
the hooks, by means of the worm f, worm wheel d² and sleeves d and b.
The
In the modification shown in Figs. 4 and 5 the hooks g¹g' are made to swing in a
horizontal plane whilst the frames a² a² are turned round a quarter of a turn.
hooks g¹g are operated by means of the rods M adapted to slide in guides on the
buffer casings and having downwardly extending pins M' which engage in slots g²
of the said hooks, said rods M being retained in either position by means of
transverse pins o o inserted through the rod at either side of the strap which guides
the same.
The operation of this part of the invention will be intelligible from the foregoing
Specification and needs no further explanation.
In the modification shown in Figs. 6 and 7 the frames a³ a³ are made with
tapering extremities running out to a point and the said frames are not rigidly
supported in the horizontal plane as heretofore described but are allowed a certain
amount of play by the following arrangement :—The sleeve 6 fits loosely over the
bar a and has its rearward end provided with a rounded off surface, against which
a disc n of the said bar rests, the contacting surface of the said disc being also
spherically formed. Beyond this disc n the bar is of a smaller diameter having a
shoulder against which the said disc rests, and behind the disc is a spring c of
greater strength than the buffer springs said spring resting at its opposite extremity
against a nut on the bar a. At the opposite side of this nut is a second and lighter
spring bearing with its spherically formed disc against a stationary bearing
arranged on the car frame and through which the rod a passes being free to slide in
the orifice thereof. A spring 6 is placed in the sleere 6 between it and the rod a
which tends to hold the said rod a in its lowest position on the interior of the said
sleeve b.
The rotation of the sleeve d and worm fis facilitated by ball bearings of which
the balls are arranged in grooves at the ends of the said sleeved and. in corresponding
recesses in the inserted discs t and t¹ having spherically formed exterior surfaces
which bear against the back of the beam A of the car frame and the strap d'
respectively. The object of the arrangement of the springs c and c¹ is that when
the rods a a are tightened up by means of the hand wheel D etc. only the small
spring c² will be compressed whilst the heavy one c will remain unmoved. When
however the train is set in motion the rods a a will be subjected to a strong pull
and will compress the beavy springs c c to a certain extent thus forming an elastic
connection between the cars which is very advantageous. The play which the

page_text: frames a³ are allowed in the horizontal plane and their pointed or tapered
edges will allow them to push by one another, that car which is more heavily
loaded pushing its respective frames or loops underneath those of the other car
(Fig. 7).
In Fig. 5A a similar device is shown but with the hooks moveable in the
horizontal plane and the loops placed on edge or in the vertical plane; in this case
the rods M are not retained in position by pins but by notches m m which grip
over the side of the guide straps on the buffer casings and are retained in position
by means of suitable springs pinserted between the rod and the opposite side of
the said guide straps.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is performed I declare that what I claim is —
1. In a car coupling the combination of hooks pivotally attached to the car ends,
frames elastically attached to the said car ends and arranged underneath said hooks
said frames being capable of receiving the hook above them and also the hook of
the next car, means for letting down the said hooks into the said frames when
overlapping each other and means for tightening up the same substantially as
described.
2. In a car coupling the combination of the pivotally attached hooks g 9,
frames a¹ a having rods or bars a elastically attached to the car frame,
excentrics B having supporting rods h and hooks at the opposite side to the
throw of said excentrics, a shoulder to the said hooks g over which the hooks i
grip, weighted levers H to the said excentric rods h and means for tightening up
the said frames onto the hooks substantially as described.
3. In a car coupling the combination of the pivoted hooks g g, frames a¹ a¹ on
bars a a, a sleeve b having coarse exterior screw thread and arranged on the said
bars a behind the car frame, and exterior sleeve d to engage the thread of sleeve b,
worm wheel d to said sleeve, a worm f on worm shaft D' mounted in the car frame
and means to turn said worm shaft, a nut on the end of the said bar a and an
inserted spring c arranged between the end of the sleeve and the said nut
substantially as described and means for raising and lowering the hooks g g as
specified.
4. In a car coupling the combination of the pivoted hooks 99 and frames a³ a³
thereunder, having rods or bars a tapered edges to the said frames, a sleeve b
loosely mounted over the said bar a and means in connection therewith for
tightening up the said frames, a disc having spherically formed surface to rest
against the end of the said sleeve, said disc resting against shoulder of the bar a, a
spring c heavier than the buffer spring arranged around the said bar a, a nut to
support the opposite end of the spring c and a second light spring c¹ between said
nut and a fixed bearing on the carriage frame, through which the said bar a
extends in the manner and for the purpose substantially as described.
5. In a car coupling the combination of hooks g' g₁ pivotally attached to the car
ends, frames a² a² having tapered ends elastically attached to the said cars and
means for tightening up said hooks, a bar M to operate said hooks and means for
arresting the said bar in position substantially as described.
Dated this 30th day of July 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.