AN IMPROVEMENT OR IMPROVEMENTS IN OR RELATING TO TRICYCLES WHICH MAY BE APPLIED TO SIMILAR VEHICLES
Year: 1882

page_text: LETTERS PATENT to William Morgan, of Cannon Street, Birmingham, in the
County of Warwick, Manufacturer for an invention of AN IMPROVEMENT
OR IMPROVEMENTS IN OR RELATING TO TRICYCLES WHICH MAY BE APPLIED
TO SIMILAR VEHICLES
PROVISIONAL SPECIFICATION left by the said William Morgan at the Office
of the Commissioners of Patents on the 17th April 1882.
WILLIAM MORGAN, of Cannon Street, Birmingham, in the County of Warwick,
Manufacturer. "AN IMPROVEMENT OR IMPROVEMENTS IN OR RELATING TO
TRICYCLES, WHICH MAY BE APPLIED TO SIMILAR VEHICLES
"
The object of this Invention which has reference to an improvement or
improvements in or relating to tricycles, and which is or are also applicable to
other similar vehicles, is to provide such improved arrangements of means as will
reduce the manual exertion required in propelling such machines up inclined
road ways, and which will enable an increased speed being obtained upon level
roadways without increase of exertion.
"
According to one modification, I employ a chain wheel having inside cogs
gearing with an outside cogwheel fixed or keyed upon the treadle shaft, and
capable of being thrown in and out of gear by a single lever, or by the connection
of a second lever, and working with a clutch in or on the treadle shaft. Or, in
lieu of this, I substitute a ring of solid india rubber in lieu of the inside cogs of the
chain wheel, gearing with a rounded V or plain turned wheel upon the treadle
shaft. Or, again, the reverse of this arrangement, viz. the inside of the chain
wheel being plain rounded or V-shaped, and working in contact with a rounded
india rubber band passing around the treadle shaft.
I also use linen bands covered with india rubber, working on differential pulleys
on the wheel of the tricycle and spindle of the treadle shaft.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Morgan in the Great Sen! Patent Office on the
17th October 1882.
WILLIAM MORGAN of Cannon Street Birminghain in the County of Warwick
Manufacturer AN IMPROVEMENT OR IMPROVEMENTS IN OR RELATING TO TRICYCLES
WHICH MAY BE APPLIED TO SIMILAR VEHICLES
The object of this Invention, which has reference to an Improvement or
Improvements in or relating to tricycles and which is or are also applicable to
other similar vehicles, is to provide such improved arrangements of means as will
reduce the innnual exertion requirod in propelling such machines up inclined
roadways and which will enable an increased speed being obtained upon lovel
roadways without increase of exertion.
According to one modification I employ a Chain wheel having inside cogs
gearing with an outside cog wheel fixed or keyed upon the trondle shaft and
capable of being thrown in and out of gear by a single lever, or by the connection
of a second lever, and working with a clutch in or on the trendle shaft-Or, in
lieu of this, I substitute a ring of solid india rubber, in lieu of the inside cogs of
upon the
the chain wheel, gearing with a round, V, or plain turned wheel
trendle shaft.
I also use linen bands covered with indin rubber, working on differential pulleys
on the wheel of the tricycle and spindle of the treadle shaft.
Figs: 1 and 2. on the accompanying drawings, represent one modification of my
Invention. 1 represents the treadle axle to which is made fast the cog wheel 2,
which has cast in it recesses, 3, a central one 4, being made in the end of the axle.
5 is the chain wheel which has a ring of internal cogs of wood, india-rubber, or
thetal, and passing through its centro is a short T-headed plug 6 with end snugs 7
and a contral pin 8.
When driven at "speed" the central pin S, and the snugs 7, take into and hold
central the cog wheel 2; by withdrawing the plug G, by means of the lever 9, the
machine is at free" for down hill; the lever 0, being now pressed forward, the
chain wheel 5, attached to it and the lever 10, is brought into gear with the cog-
wheel 2, and the machine is at "slow" or "power" for uphill or against the wind-
11, represents two springs or india-rubber buffers to receive the shock of the snugs
falling into their recesses and prevent concussion.
India-rubber and hemp or calgut or wire endloss bands 12, may be used instead
of iron chains.
In the modification illustrated in Figs: 3 and 4, the fixed cogwheel 2. engages
with the internally toothed chain wheel 5 by means of a double toothed chain 13
passing over a friction pulley 14. on a stud plate 15, When at "speed" all theso
parts move together, When at "power" the stud plate 15, is stopped by a lover
having a spring or india-rubber buffer to receive the shock, this arrangement is
applicable to central action machines and bicycles and instead of to the treadle
shaft, can he aflixed to the hub of the wheels of tricycles.
In the modification illustrated in Figs: 5, and 6,-on the treadle shaft 1. is
keyed an expanding pulley 10, a corresponding expanding pulley 17, being keyed
to the driving wheel of the tricycle, and worked by an ondless band 12, of india-
rubber, with cloth, or hemp, or cal-gut, or wire rope combined; the shape of the
endless band may be varied, and the band may be made with projections at
intervals taking into suitable teeth on the exterior of the wheel or pulley.
"Fast" or "Slow" is caused by shifting the lever 18:

page_text: In the modification illustrated in Fig: 7,-the trea lle shaft (or wheel shaft) is
provided with two loose differential pulleys, 2. 5 which are thrown int) and out
of gear by a clutch 19, and lever 9 working inside of the said pulleys, connected
or engaging with endless chains, or india rubber and hemp as described with
reference to Figs: 5 and 6-The chains run close to each other merely free from
touching, thereby saving space-India-rubber or steel spring buffers 11, are inserted
to receive any shock when thrown into gear.
Having now described the nature and object of my said Invention together with
the manner in which the same is to be or may be performed or carried into
practical effect I would remark in conclusion that I claim as my Invention
1: The combination with a chain wheel having internal cogs, of means for.
nctuating the same as hereinbefore described for producing variable speeds.
2. The means herein before described for preventing shock in gearing the parts
together.
3. The formation of the teeth of the internal wheels of elastic material for
preventing noise and shocks
4. The combination with the toothed pinion and wheel of a double acting toothed
chain.
5. The arrangement of expanding pulleys and connecting band hereinbefore
described.
6. The arrangement of differential pulleys with an inner clutch and double chains
running close together.
7 The use in such vehicles of endless bands consisting of india rubber combined
with hemp, cat-gut, or wire, having projections or their Equivalents at intervals.
In witness whereof I the said William Morgan have hereunto set my hand
and seal the fourteenth day of October, in the year of our Lord One
thousand eight hundred and eighty two