An Improved Machine for Bending Railway and other Rails.
Year: 1895

page_text: Date of Application, 11th Sept., 1895
Complete Specification Left, 6th June, 1896-Accepted, 18th July, 1896
PROVISIONAL SPECIFICATION.
An Improved Machine for Bending Railway and other Rails.
I, GEORGE EDWARD SMITH of Sherbrooke, Province of Quebec, Dominion of
Canada, Contractor, do hereby declare the nature of this invention to be as
follows
The machine of this invention is driven by power from a pulley which may be
engaged and disengaged by means of clutch mechanism. On the same shaft as the
pulley is a toothed pinion which gears with a wheel which rotates a feed roller
mounted in a fork having a screw extension by which it and its shaft is adjustable
as to height, the screw, passing through frame of the machine when operated from
a hand wheel and through gearing. The rail to be bent or curved is laid upon two
stationary rollers and curved when fed through the machine between the feed
roller and the two stationary rollers.
Dated this 11th day of September 1895.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.
I, GEORGE EDWARD SMITH of Sherbrooke, Province of Quebec, Dominion of
Canada, Contractor, 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 metal bar or rail bending by steam or other power.
In the accompanying drawing Fig. 1 is a front elevation of the machine of this
invention with some of the rear parts shewn in the other views, omitted. Fig. 2 is
an end view and Fig. 3 a plan of the same.
A is the main frame of the machine and inclusive of the bed plate is cast in one
piece and may be supported upon two pieces of timber X, Y. This frame has a
strengthening flange 6 bordering its upright portion, a forward projection 6* of
said flange at the top of the upright, such top having holes for a vertical screw A'
and a vertical shaft B, downward projections 7 from its base 8 to support the
Don adjustable rollers 1, 2, and an extension 9 of the base or bed, back from these
projections, such extension passing beneath the driving pulley.
The vertical screw A¹ carries the gear A2 and a connecting socket piece A³
having an extension guide bar A' movable in its guide A³. The vertical shaft B
carries the pinion B' actuated by a hand wheel B
The pinion engages with toothed wheel A² and serves to operate this wheel and
the screw A when the hand wheel B2 is turned in order to set the rail to be bent,
to the desired curvature before applying the power to feed it through the machine,
and to impart to it the same predetermined curvature throughout, without the
necessity of stopping to reset the rail at different times.
C is a horizontal shaft carrying a large spur wheel D engaging with a pinion E
on shaft F, which latter is parallel with shaft C. This shaft is carried at one end

page_text: in a vertically movable slide block c¹ fitted in the upright guide (Figs. 2, 3) and
at the other end in the socket piece A³ whose extension A can rise and fall without
turning in its guide A³. By these means the wheel D with its shaft may be raised
and lowered as required. A suitable opening A (Fig. 1) in the casting A permits
the vertical movement of shaft C.
Power is applied to the shaft F after a rail or bar has been inserted and adjusted
to its proper position between the rollers 1, 2, carried on fixed bearings on the
frame, and the feed roller 3 carried by the adjusting screw A¹. 4, 5, are vertical
guide or friction rollers.
G is the driving pulley provided with a suitable clutch H movable on shaft F
along a feather (Fig. 2). The rear end of the shaft F is carried in a
bearing f'.
The rail having been placed in the machine and set by means of wheel B',
pinion B', toothed wheel A2 and pressure roller 3 the clutch being in engagement
with pulley G, and power applied to drive the pulley, it is carried steadily and
uniformly through the machine with a regular curvature given to it from end
to end.
If it should be desired to have a lesser or a greater curvature in any part of a
rail this may be accomplished by varying the pressure of roller 3 at any part in the
length of the rail.
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 1
claim is
1. In combination with a frame, the vertical shaft B, its hand wheel and pinion,
the adjustable vertical screw A', its toothed wheel A2 and the socket piece and its
guide, the shaft supported by said screw, the bending rollers 1, 2, located at the
bottom of the frame outside its upright portion and the feed roller 3 carried by
the screw A', for the purpose specified substantially as described and shewn.
2. The combination in a rail bending machine of a shaft carrying an adjustable
feed roller, one end of which shaft is supported in a vertically adjustable socket
carried on the end of the screw, an extension guide bar on said socket projecting
through the bed of the frame, and bending rollers 1, 2, the feed roller being located
on the front of the frame, substantially as described and shewn.
Dated this 6th day of June 1896.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.