Improvements in Drawbars for Railway Cars.
Year: 1897

page_text: Date of Application, 20th July, 1897-Accepted, 16th Oct., 1897
[Communicated from abroad by WILLIAM TALBERT NAN DORM, of Monadnock
Block, City of Chicago, in the County of Cook, in the State of Illinois, one
of the United States of America, Manufacturer of Railway Supplies.]
Improvements in Drawbars for Railway Cars.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 322 High Holborn, in the County of Middlesex, 6, Lord Street,
Liverpool, and 6, Bank Street, Manchester both in the County of Lancaster, and
Lower Temple Street, Birmingham, in the County of Warwick, Civil Engineer,
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 follow-
ing statement:-
.
This invention has relation to improvements in Draw-bars for Railway Cars.
The invention is particularly designed for use on cars moving on street railways,
whether surface or elevated, it being applicable to any cars, and especially to
such used on tracks having abrupt and sharp turns or curves in; the purpose
being to provide a draft appliance which will readily and automatically adapt
itself to the line of draft between adjacently coupled cars, no matter what may
be the deviations of the track from a straight line.
The invention is fully and clearly illustrated in the accompanying drawings,
wherein :-
Figure 1 is a perspective view of a draw-bar constructed in accordance with
the invention.
Figure 2 is an inverted perspective of the bearing plate, which holds the
draw-bar in operative position to the car.
Figure 3 is a side view of the draw-bar and bearing plate, partly in vertical
longitudinal section, showing the parts in engaged and operative relation.
Referring to the drawings, Figures 1, 2, and 3, D designates a draw-bar which
may be of any suitable design and conformation adapted to the purposes intended.
The draw-bar is illustrated as consisting of a rectangular piece of metal formed
with a head h, having a mouth or opening to receive a coupling pin or link and
provided with a coupling pin hole Adjacent to the rear end of this draw-bar,
and on the upper face thereof is formed a round bearing, consisting of two
rings, ha, h³, of different diameters, the upper one h³ being of less diameter than
the lower one, so that a shoulder is formed at their union. A bolt-hole h, is
formed vertically through the draw-bar and extends centrally through the bearing,
substantially as shown. A seat h³, may be formed in the draw bar to take the
head of the bolt.
B', designates a bearing-plate adapted to be secured to a timber, or other con-
venient and proper part of the car. This bearing plate B' consists of a suitable
metal plate having a flat under-surface 6, to lie Hat upon and ride on the upper
face of the draw-bar, and formed with a downward extending end flange 62, the
inner wall of the flange being curved out on the line of circular movement of the
end 6, of the draw-bar; the rounded end of the draw-bar abutting against

page_text: the vertical face of the flange; and to assist in maintaining the draw-bar in
longitudinal alignment, a flange plate 63, may be secured on the lower face of the
flange b, to set against the rear under face of the draw-bar, substantially as
shown in Figure 3 of the drawings. In the bearing-plate B₁ is formed a circular
bearing-pocket or seat 64, to take the raised circular bearing on the draw-bar,
the bearing in plate B₁ being a counterpart of the bearing on the draw-bar,
substantially as shown in Figure 3 of the drawings. B2 designates a bolt holding
the draw-bar and bearing plate together, and constituting the pivotal support
on which the draw-bar swings or moves in a horizontal plane; a nut b³, holds the
bolt securely in position.
The operation of the device is apparent from the foregoing description, taken
in connection with the drawings. The parts being properly assembled and
secured together, and the device secured to the car, the operation is automatic,
being effected by the direction of the pull between adjacent cars.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:
1. In a draw-bar, the combination of the bearing-plate B', adapted to be secured
to the timbers of a car and formed with a flat bearing face on its under side and
a downward extending end flange 2 having its inner vertical wall curved out, 2
and formed with a bearing-seat consisting of upper and lower round bearing
recesses of different diameters and a bolt hole through the said plate and central
with the bearing recesses therein, the draw-bar D formed on its upper face with
a bearing consisting of two rings of different diameters and a bolt-hole
centrally through the bearings, and a bolt through the bolt-holes on which the 2
draw bar swings on a horizontal plane.
2. In a draw-bar, the combination of the bearing plate B', adapted to be secured
to a car and formed with a flat bearing face on its under side and a downward
extending end flange 62 having its inner vertical wall curved out and formed
with a bearing seat consisting of upper and lower round bearing recesses of 3
different diameters and a bolt hole through the plate central with the bearings
recesses, a flange plate 63 secured on the lower face of the flange 2 to set under
and support the rear end of the draw-bar, the draw-bar D formed on its upper
face with a round bearing consisting of two rings of different diameters and a
bolt hole through the draw-bar and the bearing thereon, and a fastening bolt 3
through the parts at the bearings on which the draw-bar swings on a horizontal
plane.
T
T
W. P. THOMPSON & Co.,
322 High Holborn W.C., Patent Agents for the Applicant.