Improvements in Chain Gearing.
Year: 1896

page_text: Date of Application, 18th Mar., 1896
Complete Specification Left, 5th Oct., 1896-Accepted, 7th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Chain Gearing.
I JOSEPH HOLLIS Jeweller and Cycle Manufacturer 29 Bath Steet Ilkeston
Derbyshire do hereby declare the nature of this invention to be as follows:-
A chain wheel constructed with rollers running on steel balls. These rollers
taking the place of cogs as used on such like wheels. A special design of
chain with inverted teeth or blocks being used in conjunction with this chain
wheel.
The design of chain is arch shaped to fit over the rollers, the bottoms being
riveted together and fit down between the ball bearing rollers."
Date: this 16th day of March 1896.
JOSEPH HOLLIS.
I, JOSEPH HOLLIS 27 Bath Street Ilkeston Derbyshire Jeweller and 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 :-
A chain wheel constructed with rollers running on steel balls. These rollers
taking the place of cogs as used in such like wheels. Both driving wheel and hub
wheel being made with roller bearing cogs, a special design of chain being made
with teeth to fit in between the rollers.
The chain is constructed with arched shaped links united together at the
bottom.
In order that my invention may be fully understood I will now refer to the
annexed drawings:-
Figure 1. is a side elevation of my invention.
Figure 2 cross section through line x-y.
Referring to Figures 1 and 2 a are the wheels having the rollers b recessed at b¹
which are supported by ball bearings upon the spindle c which is screwed into
the wheel a and is secured by means of the nuts m and washer n or such well known
means. These rollers b are used in place of the ordinary teeth upon the said driving
or chain wheels a.
The chain in this case is composed of a series of curved links d pivotally secured
together at e the ends f of said liuks forming projecting parts or teeth which depend
between said rollers b.
The curved part g engages upon the rollers b. It will be seen that the wheels a
may be driven by the chain or either of the wheels a may drive the chain as
required. The curvature of the links d may be varied to suit the shape or diameter
of the rollers b.
In Figure 2 the roller b has the ball races h in which the balls i run; j is a race
formed on the wheel a. c is the screwed bolt which is screwed into the wheel a

page_text: and has the ball race l, m is a securing nut which screws upon the bolt c and
maintains the same in position, n. being a washer under the nut.
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 :-
1st. In chain driving gear, driving wheels having rollers mounted on ball
bearings upon or around the same and adapted to engage a chain substantially as
described.
2nd. In chains for wheels, a chain composed of curved or arched links pivotally
connected together in combination with a driving wheel having rollers mounted on
ball bearings upon or around the same and upon which the arched or curved portion
of the links engage.
Dated this 5th day of October 1000
E. EATON,
Agent for Applicant.