Improvements in Pullies and in the Method of Transmitting_Rotary Motion thereby from Shaft to Shaft Arranged at Various relative Angles.
Year: 1888

page_text: Date of Application, 11th Sept., 1888
Complete Specification Left, 11th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Pullies and in the Method of Transmitting_Rotary
Motion thereby from Shaft to Shaft Arranged at Various
relative Angles.
I, THOMAS GARE of 25 Booth Street Edgeley, Stockport in the County of Cheshire,
Boot and Shoe Manufacturer, do hereby declare the nature of this invention to be as
follows:-
Heretofore rotary motion has been transmitted from shaft to shaft arranged at
various relative angles principally by means of bevel or friction wheel gearing.
Now my invention has for its object to accomplish the same by means of pullies
and strap, and permitting of varying the angles at which the shafts run without
stoppage or changing of the strap or pullies.
To this end I construct the pulley so as to present a concave cone, the periphery of
which longitudinally forms a portion of a circle of suitable diameter struck from a
point nearer to its sinallest than its largest diameter.
The described pulley is employed in pairs for transmitting rotary motion from
shafts placed at a relative angle of about 45 degrees; below the same, one only in con-
nection with an ordinary pulley may be employed, the peculiar shape of the pulley
ensuring the strap biting keenly and remaining at one tension at any relative angle at
which the shafts may revolve.
Instead of making the described pulley a fast pulley only, a portion of same may be
arranged as a loose pulley, to the boss of which I cast internally and concentric
therewith a metal coil wound a little apart from each other.
This metal coil forms a bush for the pulley as well as a lubricator, the spaces
between the coils serving to receive the lubricant introduced into the boss and supply
the shaft with it gradually.
This part of my invention is also applicable to any other kind of loose pulley.
D
1011 1
ca
1
1000
THOMAS GARE.
COMPLETE SPECIFICATION.
Improvements in Pullies and in the Method of Transmitting Rotary
Motion thereby from Shaft to Shaft Arranged at Various
relative Angles.
1, THOMAS GARE of 25 Booth Street Edgeley, Stockport, in the County of Cheshire,
Boot & Shoe Manufacturer 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 :-
Heretofore rotary motion has been transmitted from shaft to shaft arranged at
various relative angles principally by means of bevel or friction wheel gearing.
Now my invention has for its object to accomplish the same by means of pullies
and strap, and permitting of varying the angle at which the shafts run, without
stoppage or changing of the strap or pullies.
And in order that my invention may be more fully understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference, indicating
like parts in the various figures.
Fig. 1 is a part section and part side elevation, and Fig. 2 a cross section of my
improved pulley. Figs. 3 & 4 are side elevations on a reduced scale of various uses
of the same.
In carrying out my invention and referring to Fig. 1, I construct the pulley so as

page_text: to present a concave cone a, the periphery of which longitudinally forms a portion of
a circle of suitable diameter struck from a point b, nearer to the sinall than the larger
diameter of the cone pulley a.
To transmit rotary motion from shafts c, placed at a relative angle of about
45 degrees, the described cone pulley a is employed in pairs, see Fig. 4; below the
said angle only one cone pulley a is required in connection with an ordinary pulley,
the peculiar shape of the cone pulley a ensuring the strap e biting keenly and
remaining at one tension at any relative angle at which the shafts c may revolve.
Fig. 3 represents such an arrangement, the cone pulley a being employed to rotate
a cutter fused for paring boot or shoe heels.
The bearing in which the shaft f³ and the cone pulley a is mounted, is arranged
capable of circular adjustment, so as to present the face of the cutter f¹ at various
angles to the object to be operated upon, as may be required, see dotted lines.
Instead of making the described cone pulley a a fast pulley only, a portion
thereof a', see Figs. 1 & 2 may be arranged, as a loose pulley, to the boss
of which
I cast internally and concentric therewith a metal coil h, wound a little apart from
each other:
This metal coil forms a bush for the pulley a' as well as a lubricator, the spaces
between the coils serving to receive the lubricant introduced into the boss g and to
supply the shaft with it gradually.
In order to secure the coil or bush h to the boss g of the pulley a¹, the ends are
bent outwardly and cast into the boss y, and the latter formed with a flange g' at
each end, and to contain a considerable amount of lubricant one or more cavities i
may be cast around the coil or bush a.
The described metal coil or bush h is also applicable to any other kind or shape of
loose pulley.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
In pullies-
1st. The general construction and application of pullies, substantially as and for
the purpose specified.
2nd. Forming the pulley periphery longitudinally, so as to present a portion of a
circle, struck from a point nearer to the smaller, than the larger diameter of the
pulley, substantially as and for the purpose specified.
3rd. The application to the interior of the boss g of a loose pulloy, of a metal coil
or bush h, substantially as and for the purpose specified.
Dated this 8th day of June 1889.
THOMAS GARE.