Improvements in Velocipedes.
Year: 1890

page_text: Date of Application, 25th Nov., 1890
Complete Specification Left, 1st June, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Velocipedes.
HENRY PARSONS 252 Albert Road Aston Birmingham Tool Maker do hereby
declare the nature of this invention to be as follows:-
My improvement in velocipedes consists in so constructing the wheel or that
part usually termed the hub; so that the main driving spindle shall pass through;
And the wheel and tooth hub revolving round the spindle; The said spindle
carrying an internal tooth wheel and moving in the same direction. The driving
gear being all combined and complete in or on that aforesaid hub, in the centre of
wheel. Any number of such driving wheels may be attached to a frame. And that
I may be understood I describe a safety bicycle so made up; I make a drum of
suitable size having teeth on the outside, into which drum I place a disc at both
ends joined together, the said disc's containing balls on which the drum or the
drum may carry the balls with cones attached to the disc's, The said disc's being
eccentric and having a hole bored near the edge I place the driving spindle in and
through. The said spindle carrying an internal tooth wheel so slipping into or
engaging with the teeth on the drum. The said tooth gear wheel on the spindle
exceding the size of the one on the drum according as the eccentric is placed out of
centre. To the spindle are attached the cranks and pedals in the ordinary manner
also the spokes and rim to the drum.
The gear wheel, drum, and wheel being complete I secure a pair of angle arms
to the aforesaid disc's the spindle running in bearings in the arms and being
moveable to gear up,
The angle arms being then connected to an angle frame
forming a square. Above the centre of wheel I place the saddle and on the
opposite side square the handle bar to guide front wheel jointed in a right angle
extension or frame. A. roller brake swinging on the corner square of frame.
Working on the same lines instead of having the drum in one piece as herein.before
stated I divide the drum and put the gear wheel in the centre of and between the
divided drum being in the middle or between the spokes the teeth on the drum
engaging also in the centre. The split drum would have radiating arms joined
together to take the place of spokes or joined to the spokes in the rim. The rim
having spokes also into the drum, The disc's being put in the drum in the manner
herein before described and mounted up.
Dated this 24th day of November 1890.
HENRY PARSONS.
COMPLETE SPECIFICATION.
Improvements in Velocipedes.
HENRY PARSONS 252 Albert Road Aston Toolmaker 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 improvement in velocipedes consists in so constructing the wheel, or that part
usually termed the hub, so that the main driving spindle shall pass through. And
the wheel and tooth hub revolving round the spindle, The said spindle carrying
an internal tooth wheel, the said teeth on the wheel being semicircular in form and
coupleing or gearing into semicircular teeth on the hub or drum in the centre of the
wheel or placed on the side of the hub in the wheel. The driving gear being all
complete and combined in or on the aforesaid hub as hereinafter described and
illustrated, and as the said improvements are applicable to any number of wheels so
ΓΙ

page_text: made up the form the frame may take being optional, and frames of cycles being
now so generally known I therefore only describe that part to which my invention
has special reference and as the said discs or cones whether for full length or
divided hub or drum being identical the same letter applies to all the respective
parts in each figure illustrated to shew how the same is performed. I say I make
a drum of suitable size D Fig. 1 having teeth on the outside T into which drum I
place a disc or cone at both ends C Fig. 2 shews a side elevation with a section of
rim R and spoke wires W, the cones being joined together by a spindle J
extending above and below cranked K the said disc or cones being made suitable
for ball bearings now in general use. The said discs being eccentric and having
the hole bored near the edge E I place the driving spindle S in and through;
the said spindle carrying an internal_tooth gear wheel G so slipping into or
engaging with the teeth on the drum D. The said tooth gear wheel G. Fig. 1
and Fig. 2 on the spindle exceeding the size of the one on the drum D according
as the eccentric is placed out of the centre of the disc C aforesaid. Instead
of having the drum full length as before stated I divide the drum Fig. 3 and
put the gear wheel in the centre and between the spokes the teeth on the drum D
also being in the centre T the divided drum having connecting bridges B joining
the drum together spoke wires running from the bridges to the rim R; The said
bridges B in Fig. 2 having the appearance of radiating arms. Fig. 4 shews the
cones C and how they are joined together by the spindle J with a double crank K
Fig. 4 is taken out of Fig. 3 the divided drum to simplify the illustration. The
gear wheel would be placed in the space O between the cranks K in Fig. 1 the
double crank running round the gear wheel is placed on the outside. The gear
wheel, drum, and wheel being complete I secure them to the frame fork ends For
angle arms by pins P to the cones C. The spindle moving in bearings A in or on
the said fork ends of frame as in Fig. 5. I the pedals F being moveable on C to
gear up.
Having described and illustrated my invention I say I claim to place the
driving spindle which carries the gear wheel through an eccentric disc or cones
placed in the drum or hub, the drum revolving round the spindle and to divide
the drum and run the gear wheel in the division and the combination of the
parts substantially set forth herein.
Dated this 28th day of Nov 1801