An Im Cra for
Year: 1888

page_text: Date of Application, 20th Jan., 1888
Complete Specification Left, 11th Oct., 1888
Complete Specification Accepted, 19th Jan., 1889,
During the Process of being Forged.
JOSEPH OTTER 49 Jenkin Road Brightside near Sheffield Yorkshire Yeast dealer &
Inn keeper do hereby declare the nature of this invention to be as follows:-
F**
An Improved Crane for lifting and Turning over large Ingots during the process
of been Forged at the Hammer and Press the Improvement consists in having
two Winding drums drawing the Chain from a pair of Pulley Blocks and gearing
one of the Sheaves of the Botham Block by means of Toothed Wheels with the
Wheel and endless Chain in wich the Forging is Slung causing it to rotate on its
own axis as required.

page_text: COMPLETE SPECIFICATION.
An Improved Crane for Lifting and Turning Over Large Ingots
During the Process of being Forged.
I, JOSEPH OTTER, of 49 Jenkin Road, Brightside, Sheffield, in the County of
York, Engineer, do hereby declare the nature of my said invention for "AN IMPROVED
CRANE FOR LIFTING AND TURNING OVER LARGE INGOTS DURING THE PROCESS OF
BEING FORGED "and in what manner the same is to be performed to be more
particularly described and ascertained in and by the following statement :-
This invention relates to travelling cranes and is constructed in the ordinary
manner, with three gearing wheels two working loosely on the driving shaft and
one above working between them.
On the said shaft is a clutch box for the purpose of bringing either of the wheels
thereon into operation rigid connection with the shaft.
The following is a description of my invention with reference to the drawings.
A is in one with A' which is therefore loose on the shaft. When it is desired to lift
or lower as in ordinary cranes, the clutch is put onto the gearing wheel A which
causes the whole of the machinery to be driven one way, as the small driving wheel B-
is keyed to the same shaft.
As the gearing revolves in the direction to lift or lower the endless chain passes
over sheaves N. and M. also round the two side sheaves of pulley block D. and
sheaves L. and K, thus causing pulley block D. to be lifted and lowered, according
to the direction of the gearing before mentioned.
When it is desired to turn an ingot the clutch is put onto the gearing wheel E
which keys it to the shaft and so causes the pinion B to revolve in the opposite
direction to A' and thus the one half of the gearing to revolve in one direction and
the other half in the reverse as shewn by the arrows on Figs. 1 and 2 of the
accompanying drawings.
As sheave N is revolving one way, and sheave M the reverse, one part of the
endless chain is lifting, whilst the other is lowering, this action causing the block D
to become stationery, while at the same time, the sheaves revolve loosely on their
axles, with the exception of sheave C which being keyed to its axle turns the toothed
wheels F on either side of the pulley block D which are connected by endless chains G
to toothed wheels H which are keyed to their axle; the said axle passes through and
is secured to the bottom pulley I.
Passing over the toothed sheave of the pulley I is a strong endless chain J for
turning over the ingot as required.
The operation above described is carried into effect by means of an endless chain
which is first passed over the centre sheave C of pulley D. and one part is carried
thence over the sheave K. of pulley O above, and thence over the right hand sheave
of pulley D. and thence over the sheave M whence it falls. The other half of the
chain is carried over sheave L of pulley O. thence over the left hand sheave of
pulley D and lastly over sheave N.

page_text: In lifting or lowering, the centre sheave C (of the pulley block D) does not
revolve but the two side ones do.
The essential feature of this invention consists in the addition to a travelling crane
of the centre sheave C, which is keyed to its shaft, and the gearing relating thereto,
for the purpose of turning over large ingots during the process of being forged at
the hammer or press.
The accompanying drawings illustrate my invention the same letters of reference
applying to the different views.
•
GARLICK & MCGOWAN,
Agents for the Applicant.