Improvements in Velocipedes.
Year: 1895

page_text: Date of Application, 28th Oct., 1895
Complete Specification Left, 27th July, 1896-Accepted, 29th Aug., 1896
Improvements in Velocipedes.
I, GEORGE LEONARD MORRIS, of 16, Well Street, Gray's Inn Road, in the
Parish of St. Andrews Holborn, in the County of Middlesex, Cycle Manufacturer,
do hereby declare the nature of this invention to be as follows:
This invention relates to an improved device for adjusting the position of the
axle of the driving wheel of bicycles in the slotted back ends of the main frame,
for the purpose of adjusting the tension of the driving chain, and it consists
essentially of a snug on the underside of the slotted back end of the frame into
which is threaded a small screw which lies longitudinally under the said end of the
frame. The washer adapted to fit over the end of the axle and against which the
locking nut impinges has a snug formed on it in which is cut a slot adapted to
engage with a groove turned in the head of the aforesaid screw. The snug on the
washer is shaped to adapt it to fit up against the underside of the slotted back end
of the frame and thus form a guide, so that it cannot twist, and thus no strain is
thrown on the screw.
By unscrewing or screwing up the screw, threaded into the snug on the slotted
back end of the frame, the position of the axle may be varied as desired. It
will be understood that each back end of each side of the frame is fitted with this
device.
1, GEORGE LEONARD MORRIS of 16, Well Street, Gray's Inn Road, in the
Parish of St. Andrews Holborn, in the County of Middlesex, 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:-
This invention relates to an improved device for adjusting the position of the
axle of the driving wheel of bicycles in the slotted back ends of the main frome,
for the purpose of adjusting the tension of the driving chain, and it consists
essentially of a snug on the underside of the slotted back end of the frame into
which is threaded a small screw which lies longitudinally under the said end of the
frame. The washer adapted to fit over the end of the axle and against which the
locking nut impinges has a snug formed on it in which is cut a slot adapted to
engage with a groove turned in the head of the aforesaid screw. The snug on the
washer is shaped to adapt it to fit up against the underside of the slotted back end
of the frame and thus form a guide, so that it cannot twist and
thrown on the screw.
thus no strain is

page_text: In the accompanying drawing which illustrates this invention;
Figure 1 is a broken view in side elevation.
Figure 2 is a broken view in end elevation-partly in section.
Figure 3 is a broken view in end elevation-partly in section—of a modification,
and
Figure 4 is a side view of a detail of the said modification.
Throughout the views similar parts are marked with like letters of reference.
On the underside of the slotted back end of the frame A is a snug B into which
is threaded a screw C which lies longitudinally under the said member of the
frame. The washer D which fits over the axle X has a snug d formed on it
in which is a slot d' adapted to engage with a groove formed in the head of
the screw C. The enug d is also shaped to adapt it to fit against the under
side of the slotted back end of the frame A as shown by Figure 2 to prevent the
washer D from twisting. As a modification the washer D may have a projecting
part d² to engage with the slot a of the back part of the frame A as shown by
Figures 3 and 4 to attain the same end.
In those frames in which the back stays are independent of the back frame,
I prefer to form the washers D in one with the said back stays.
By unscrewing or screwing
slotted back end of the frame
respect to the frame as desired.
the position of the axle X may be varied with
the screw C threaded into the snug B on the
It will be understood that the back end of each side of the frame is fitted with
this device.
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
(1.) The improved chain adjusting device for bicycles, substantially as herein-
before described and illustrated by the accompanying drawing.
(2.) In a velocipede, the combination with the slotted back ends of the frame, of
snugs such as B formed or fixed thereon, of screws such as C threaded therein, of
washers such as D adapted to fit over the ends of the axle and carrying slotted
snugs such as d adapted to engage with grooves in the screws C, all combined
arranged and adapted to operate, as set forth.
Dated this 27th day of July 1906.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.