AN IMPROVED ARRANGEMENT OF WORM GEARING APPLICABLE FOR DRIVING WASHING AND WRINGING MACHINES, CRANES, WINDLASSES, STEAM SHIP GEARING, LIFTING JACKS, AND OTHER MACHINES
Year: 1881

page_text: LETTERS PATENT to Albert Shaw, of Lockwood, near Huddersfield, in the
County of York; for an Invention of "AN IMPROVED ARRANGEMENT OF
WORM GEARING APPLICABLE FOR DRIVING WASHING AND WRINGING
MACHINES, CRANES, WINDLASSES, STEAM SHIP GEARING, LIFTING JACKS,
AND OTHER MACHINES;"
" AN
PROVISIONAL SPECIFICATION left by the said Albert Shaw at the Office
of the Commissioners of Patents on the 12th September 1881.
ALBERT SHAW, of Lockwood, near Huddersfield, in the County of York.
IMPROVED ARRANGEMENT OF WORM GEARING APPLICABLE FOR DRIVING WASHING
AND WRINGING MACHINES, CRANES, WINDLASSES, STEAM SHIP GEARING, LIFTING
JACKS, AND OTHER MACHINES."
This Invention consists in a new arrangement of mechanism for driving wringing
machines, cranes, windlasses, and other machines where shafts, studs, or pins can
be employed and wheels placed thereon. For this purpose when applied to a
wringing machine I fix a worm wheel on the shaft of the bottom roller; and on a
stud or on another shaft I place another worm wheel in such manner that the two
wheels are in gear.
On a revolving shaft I place two worms in gear with the two wheels, so that
as the worm shaft revolves the wheels are driven thereby in opposite directions.
By this arrangement of worm gearing the end wise thrust of the worm shaft in
whatever position the shaft is placed resulting from the ordinary construction of
worm gearing is prevented, consequently friction and wear and tear of the teeth of
both worm and wheel is brought to a minimum.
Instead of the worm wheels being in gear as described above, spur wheels
of larger diameter than the worm wheels and placed on the same shaft may be
used and in gear with each other, or bevil wheels connected by a shaft may be
employed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Albert Shaw in the Great Seal Patent Office on the 11th March
1882.
ALBERT SHAW, of Lockwood, near Huddersfield, in the County of York.
" AN
IMPROVED ARRANGEMENT OF WORM GEARING APPLICABLE FOR DRIVING WASHING
AND WRINGING MACHINES, CRANES, WINDLASSES, STEAM SHIP GEARING, LIFTING
JACKS, AND OTHER MACHINES."
This Invention consists in a new arrangement of mechanism for driving wringing
machines, cranes, windlasses, and other machines where shafts, studs, or pins can
be employed and wheels placed thereon. For this purpose when applied to a
wringing machine I fix a worm wheel on the shaft of the bottom roller, and on a
stud or on another shaft I place another worm wheel in such manner that the two
wheels are in gear.
On a revolving shaft I place two worms in gear with the
two wheels, so that as the worm shaft revolves the wheels are driven thereby in
opposite directions.
In order that my Invention may be better understood I herein give reference to
the accompanying Sheets of Drawings, wherein Sheet one shews the application of
my Invention to a wringing machine, Fig. 1 being front elevation and Fig. 2, end
elevation of same. On the shaft A of the bottom roller B. I fix a worm wheel C in
gear. with another, worm wheel D. working on a stud E secured to the, machine
frame or to a bracket F. Both these worm wheels are in gear with and are caused
to revolve by two worms G and H which are keyed on the shaft I, or they may
form part of the said shaft.
The shaft I is turned by the handle J, and K is a balance wheel.
It will be seen that by this arrangement of worm gearing the end wise thrust of
the worm shaft in whatever position the shaft is placed resulting from the ordinary
'construction of worm gearing is prevented, consequently friction and wear and
tear of the teeth of both worm and wheel is brought to a minimum.
In Sheet two I have shewn the application of my Invention to a lifting jack,
wherein Figs. 1 and 2 are views of the apparatus partly in section, and Fig. 3 is a
sectional plan of same. A is the rain or lifting screw of a jack on which is keyed
a worm wheel B in gear with another worn wheel C working upon a stud D.
These worm wheels are in gear with and caused to revolve-by-two-worms-E-and-F,
which are either keyed onto or form part of the driving shaft G. As in the
previous case the endwise thrust of the shaft is prevented, and wear and tear of
the parts greatly reduced. It will be understood by those conversant with
mechanics that whatever weight the jack may be lifting the wheels would not run
back when the handle H was set at liberty; less power is also required to operate
same than by the present construction of lifting jacks.
Having thus described my Invention, and ineans which I adopt in carrying the
same into effect, I would have it understood that I do not confine myself to the
precise details shewn and described, as these may be varied without departing from
the peculiar character of my Invention, but what I claim is,-
The combination of two worm wheels in gear with each other and in gear with
two worms, in the manner and for the purpose herein shewn and described.
In witness whereof, I, the said Albert Shaw, have hereunto set my hand
and seal, this Eighth day of March, in the year of our Lord One thousand
eight hundred and eighty two.