IMPROVEMENTS IN MACHINES FOR WELDING AND JUMPING THE ENDS OF WHEEL TIRES, AXLES, SHAFTS, AND OTHER SIMILAR ARTICLES
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by Leon Etienne Gachelin at the Office
of the Commissioners of Patents on the 5th May 1880.
LEON ETIENNE GACHELIN, Engine Maker, of Paris, 33, Rue des Ecoles, in
the Republique of France. "IMPROVEMENTS IN MACHINES FOR WELDING AND
JUMPING THE ENDS OF WHEEL TIRES, AXLES, SHAFTS, AND OTHER SIMILAR
ARTICLES."
This Invention relates to "Improvements in Machines for Welding and Jumping
the Ends of Wheel Tires, Axles, Shafts, and other similar Articles," and has for its
object to simplify their construction, and impart increased efficiency thereto.
My improved machine consists of a frame mounted on standards; to which it is
fastened by bolts and nuts. Such frame carries an upright lug provided with
grooved face plates, which serve as bits to lock one end of the shaft or tire to be
operated upon.
The lower part of such frame is curved, and is provided with holes wherein a
spanner is inserted, and by turning which the locking of the shaft or tire is
effected, by bringing it into contact with the grooved bits, and so holding it firmly
in position.
The frame has also two dressed faces, which form a sliding carriage for a table or
platform. These faces are dressed and dovetailed in such a manner as to prevent
the platform from being lifted out of position, while the platform has an upright
lug with grooved face plates similar to that already described, and is provided with
holes wherein to insert a second spanner, and thus effect the locking of the opposite
end of the tire, axle, or shaft which it is intended to weld or jump; by bringing it
in contact with the table or platform. Beneath this platform are two lugs forming
a cheek to which is keyed one end of a rod, the other end of which abuts on the
bearing of a crank handle, while the whole is traversed by an axle which imparts
motion to the sliding carriage. When the crank handle is set in motion a pro-
gressive movement is communicated to the sliding carriage, and thus the hinder end
is brought in contact with the other end, and they are then welded or jumped as
required.
The machine is likewise provided with an elbowed shaft having two bearings,
one of which rests on a boss cast on the frame, and the other on a cast iron
projection fitting in a hole sufficiently large to allow of the elbowed shaft being
fitted in the frame or head of the machine.
The upper extremity of such elbowed shaft projects, and is wedged in with an
iron wedge piece to which a lever is fitted. This lever acts as the motor of the

page_text: machine, while attached to the base of the wedge piece is a stem or rod furnished
with an adjustable counterpoise which serves to balance the lever, and which may
be removed when required. The length of the lever is determined by the amount
of power required.
With some slight modifications my improved machine may be adapted to repair
broken axles and driving shafts without altering their length.
By this improved system of construction I dispense with many of the numerous
complex gearing appliances hitherto employed, without reducing the leverage, while
it is much easier to place a number of men on a lever which may be of any desired
length, than on a crank or winch which cannot exceed a certain length.
The movement of the platform is also much more rapid, and by dispensing with
the complex gearing and the supports necessary therefor, it permits easy access to
the machine, and allows the men to work much more readily and effectively.
My improved machine possesses every requisite, strength, and solidity, and
performs its work with far greater regularity and precision than those hitherto
in use.