Two Speed driving Gear for Velocipedes
Year: 1888

page_text: Date of Application, 20th Dec., 1888
Complete Specification Left, 14th Jan., 1889
Complete Specification Accepted, 16th Feb., 1889
SQUIRE TORKINGTON 94 Dean Street Ashton-under-Lyne, Lancashire, Painter &
Decorator. I do hereby declare the nature of this invention to be as follows:-
:-
A "Two Speed driving Gear for Velocipedes" comprising 1 internal cog wheel
(see Drawings) marked A. 2 external cog wheels marked B. 2 Chain wheels
By
marked C. 1 rod marked D. 2 supports marked E & Frame marked F.
means of rod D you can travel on a level with a high geared speed; travel up
bill by a low geared speed & travel down hill with Cranks (marked H) &
wheel A ungeared.
In the Drawings the wheel A & the Cranks H. are pinned on the spindle marked K.
The two top wheels B & C are pinned on the spindle marked L & the two bottom
wheels B & C are pinned on the spindle marked M.
The Drawings show the bottom wheels B & C in gear with wheel A (for going
up hill); by raising rod D: 2 on to pin J the two bottom wheels B & C & the
two top wheels B & C, are out of gear with wheel A (for going down hill). By raising
rod D3 on pin J the top wheels B & C are put in gear with wheel A for going
on a level). The rod D is fastened to frame F by pin marked V.
The top Chain wheel (C) which is larger than the bottom Chain wheel (C); gives
the difference in gearing.
E. shows two supports for Frame F to move on. The supports are fastened to the
Machine by rest marked N.
F. is the framework to keep the top (B & C) & bottom (B & C) wheels & Spindles
(L&M) in position.
S&P. shows the mode of fitting the Chain to the Machine.
R. is a spring to keep the rod D in its proper place.
T are places to Oil Spindles L & M.
Dated this 19th day of December 1888.

page_text: SQUIRE TORKINGTON, 94 Dean Street Ashton-under-Lyne Lancashire, Painter &
Decorator, 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 :-
A "Two Speed driving Gear for Velocipedes" comprising 1 internal cog wheel
(see Drawings No. 1 & 2 "left with the Provisional Specification") marked A
2 external Cog wheels marked B; 2 chain wheels marked C; 2 Spindles marked L & M ;
1 Frame marked F; 2 Supports (round bars) marked E; 1 Rod marked D ; 1 Pin
marked J; 1 Rest marked N ; & Spring marked R.
The Wheel A; & the Cranks H; are pinned (or keyed) on the spindle marked K.
The two top wheels B & C are pinned on the spindle marked L & the two bottom
wheels B & C are pinned on the spindle marked M.
The 2 Supports marked Ę are pinned or brazed in the Rest marked N.
The Frame F can be made to move up & down on the 2 Supports with the rod D,
by the Rider, without dismounting the Machine."
The top Chain wheel C is larger than the bottom Chain Wheel C; hence the
difference in gearing.
The Drawings show the rod D: 1. on pin J, & the bottom Cog Wheel B in gear with
Wheel A. causing the small Chain Wheel to drive the Machine; thereby gaining
power in travelling up hill. By raising Rod D : 2 on pin J. the 2 top wheels (B & C)
& the 2 bottom Wheels (B & C) are out of gear with the Wheel A; leaving the
Treadles independant of the working of the Machine. By raising the rod D : 3 on
pin J. the top Cog Wheel B is put in gear with Wheel A causing the large Chain
Wheel to drive the Machine, thereby gaining speed in travelling on level ground.
F. is the frame to keep the top Wheels (B & C) & bottom Wheels (B & C) &
Spindles L & M in position.
S&P. shows the mode of fitting the Chain to the Machine.
R. is a spring to keep the rod D on pin J.
The Rod D is fastened to frame F by pin marked V.
Tare places to oil spindles L & M.
There is only one Chain required which is fitted from the driving wheel over the top
Chain Wheel, then under the bottom Chain Wheel & back to the driving Wheel.
The Invention can be applied to either Bicycle Tricycle or any other class of Treadle
Machines.
Having now particularly described and ascertained the nature of my said.
Invention and in what manner the same is to be performed I declare that
what I claim is,
1st. The Internal Cog Wheel (A) running in union with the two small external
Cog wheels (B & B) causing the two different sizes of Chain Wheels (C & C) to drive

page_text: the Machine (as before described) are new ;. & that the same are not in use by any
other person or persons, to the best of my knowledge & belief.
2nd. The Frame (F) and the 2 supports (E & E) which the Frame F is made to
slide up & down on, (as before described) are new & that the same are not in use by
any other person or persons to the best of my knowledge & belief.
3rd. The rod marked D made with 3 Seperate places (D: 1. D: 2. & D : 3) for pin J.
to rest in, & used for altering the different gearings (as before described) is new &
that the same is not in use by any other person or persons to the best of my
knowledge & belief, and I humbly pray that a Patent may be granted to me
for the above claims.
Dated this 10th dow of Tan1000