AN IMPROVED METHOD OF RAISING OR HAULING HEAVY BODIES, FLUID OR SOLID,-APPLICABLE ALSO TO PUMPING MINE, QUARRY AND OTHER SHAFTS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Digory Warne Sargent at the Office
of the Commissioners of Patents on the 17th December 1883.
DIGORY WARNE SARGENT of N° 364 Brixton Road in the County of Surrey-
Surgeon "AN IMPROVED METHOD OF RAISING OR HAULING HEAVY BODIES,
FLUID OR SOLID,-APPLICABLE ALSO TO PUMPING MINE, QUARRY AND OTHER
SHAFTS"
The objects of my invention are improvements in apparatus for lifting or
bauling minerals and other heavy bodies in mines, Quarries and other places, and
also for raising water from mines and other places-The great power ordinarily
required at mines and Quarries for lifting, hauling and pumping is usually obtained
from steam engines, worked at high pressure at great expense for fuel, and
frequently needing repair.
My invention is a perfectly new adaptation of lever power, whereby the strain
which, under the existing method, the steam engine is required to sustain, is
largely reduced, and as a result a considerable saving is effected in the consumption
of fuel, and in the wear and tear of the engine--By the use of my invention the
motive power now obtained by the use of water wheels or of machinery worked
by wind or compressed air will be largely increased, and it will also be possible to
dispense altogether with such steain or other motive power and to substitute
manual or horse power in cases where the work to be done does not involve
a lifting strain of more than ten tons at a time and does not need to be proceeded
with continuously
According to my invention two vertical levers are mounted on two fixed or
moveable fulcrums-One of such fulcrums is placed at the mouth of the pit or
shaft, or at a distance of not more than three feet from the place at which the
hauling, lifting or pumping has to be done, and the second of such fulcrums, which
is double the height of the first, is placed a distance equal to about three fifths of
the united length of the two levers-The first or lifting lever is half the length of
the second lever, to which it is rivited, or connected by a crank pin working freely
in a slotted hole through the two levers; To the distal end of the first or shorter
Jever is fixed a weight equivalent to one tenth the maximum of the required
lifting capacity of the levers-beneath such weighted end a spring bed or buffer is
Din 937

page_text: fixed on the ground to lessen the concussion of the weighted end of the shorter
lever as it falls, and to assist its return upward by the impetus of contact with the
buffer The distal end of the longer lever is supplied with a windlass crank,
which can either be worked by hand or by means of an attachment to an engine
or other convenient motive power-For lifting or hauling I connect the endless
band or rope or chain, which is now used for lifting or hauling the load, to the
short end of the first lever, and for pumping I connect the short end of such lever
to the plunger or piston of the pump, whilst if it is desired to work more than
one pump simultaneously I fix a rod or bar across the top of each pump and by
attaching the lever to such rod or bar I succeed in working each pump
simultaneously by the same stroke of the levers as is employed in working one
pump.