Improvements in and relating to Velocipedes.
Year: 1893

page_text: Date of Application, 21st Apr., 1893
Complete Specification Left, 19th Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipedes.
I, WILLIAM MORTEN APPLETON, of The Boulevard, Weston-Super-Mare, in
the County of Somerset, Cycle Manufacturer, do hereby declare the nature of
this invention to be as follows:-
My invention relates to an improved device for adjusting the tension of the
driving chain or chains used for chain-driven cycles, and it has for its object
permitting the said adjustment to be obtained without interfering with the
adjustment of the bearings of the driving wheel or wheels.
As applied to a bicycle with a single rear-driving wheel my invention is
carried into practice in the following manner :-I form each of the brackets
forming the junction pieces of the double fork forming the main frame of the
machine, with a split socket, in which slides a stem having a screw thread cut on
it. Through each split socket bracket is cut or formed a slot in which is placed
a milled nut adapted to screw on to the stem sliding in the tubular socket, therefore
by rotating this nut in one direction or the other the stem is caused to move in
and out of the socket bracket. The free end of each of the stems is shaped to
receive the end of the axle carrying the driving wheel, to which it is clamped by
nuts in the usual manner.
To adjust the driving chain it is not necessary to slacken the axle nuts, all
that is necessary being to slacken the screw bolts of the split sockets which allows
the stems carrying the axle of the driving wheel to be adjusted with respect to the
frame carrying them, by rotating the milled nuts carried by the said brackets.
Dated this 21st day of April 1893.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Velocipedes.
I, WILLIAM MORTEN APPLETON, of The Boulevard, Weston-Super-Mare, in
the County of Somerset, Cycle 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 :-
My invention relates to an improved device for adjusting the tension of the
driving chain or chains used for chain-driven cycles, and it has for its object
permitting the said adjustment to be obtained without interfering with the
adjustment of the bearings of the driving wheel or wheels.
I attain this end in the manner shown by the accompanying drawing in
which :-
Figure 1 is a broken view in side elevation of my device arranged for the single
rear-driving wheel of a bicycle or tricycle.
Figure 2 is a broken view in end elevation thereof, and
Figure 3 is a broken view in side elevation of the device as arranged for a
tricycle having a pair of driving wheels.
Throughout the views similar parts are marked with like letters of reference.
TD B77

page_text: Referring to Figures 1 and 2. Each of the brackets A forming the junction
piece of the members x, x, of the double fork forming the main frame of the
machine is formed with a split tubular socket A' in which slides a stem B having
an eye b adapted to receive the end of the axle carrying the driving wheel. The
ears a¹, a', of the split socket A' are drawn together to clamp the stem B in the
socket A by means of the screw a².
In the bracket A is cut or formed a slot a in which is placed a milled nut C
adapted to screw on to the stem B which is threaded externally.
To adjust the driving chain it is not necessary to slacken the nuts locking the
axle carrying the driving wheel to the stems B, B, all that is necessary being to
slacken the screws a, a, of the split sockets A', A', and to adjust the stems B, B,
with respect to the frame of the cycle, by rotating the milled nuts C, C.
the necessary adjustment is obtained the screws a³, a³, are tightened to clamp the
stems B, B, in the sockets A¹, A¹
After
Referring to Figure 3. Each of the split sockets A¹ is formed in one piece
with, or is attached to, the case or bracket A of one of the bearings carrying the
axle of the driving wheels, and the stays B connecting the pedal-crank axle bearing
bracket with the bearings of the main axle are adapted to slide in the socket A¹
and to be clamped therein as hereinbefore described, the ends of the said stays B
being threaded to receive the milled nuts C.
I wish it to be particularly understood that I do not limit myself to the precise
details of construction hereinbefore described and illustrated by the accompanying
drawing, but that I hold myself at liberty to make such changes and alterations as
fairly fall within the spirit and scope of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The combination of parts herein before described and illustrated in the accom-
panying drawing constituting an improved device for adjusting the tension of the
driving chains of cycles.
Dated this 10th dow of L1904
Doted this 10th
0th day of January 1901.
ROBERT E. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.