DISCLAIMER AND MEMORANDUM OF ALTERATION
Year: 1882

page_text: the Patent Law Amendment Act.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed to be
entered by the said William Thomas Shaw as such assignee as aforesaid
pursuant to the statute in that case made and provided.
WHEREAS since the filing of the complete specification it has been ascertained
that the automatic balance or differential gear shewn at Figures 3 and 4 of the
drawings was not new at the date of the Patent and that the only novelty described
in the specification with respect to this arrangement of gear is the adapting it in the
manner described with reference to Figures 1 and 2 to make it serve as a change
speed gear. I for this reason wish to disclaim and do hereby disclaim the arrange-
ment of automatic balance or differential gear shewn at Figures 3 and 4 and I alter
the specification by striking out therefrom Figure 4 Sheet 1 of the drawings and
by substituting therefor a drawing shewing the same arrangement of gear adapted
in the way described with reference to Figures 1 and 2 to form it into a change
speed gear.
I also alter the specification by striking out therefrom the words "our improved
"automatic balance" on line 32 page 3 of the printed specification down to and
including the word "This" on line 36 of the same page and in place thereof I
substitute the word another-also after the word " arrangement" on line 36
page 3 I insert the word which and after the words " described in Figures 1 and 2
on line 37 page 3 I insert the words The parts corresponding with those shown at
Figures 1 and 2 are marked with like lattare of raforance
00 that

page_text: page 10.
In order also to make clearer the descriptive parts of the specification relating
to the figures on sheet 2 of the drawings I add the words the hollow axis of
after the words "which is secured to on line 30 page 4 and I also add the words
D of the before described gears—it is after the words "stationary wheels" on line 31
page 4.
I also mark the figures on sheet
"
of the drawings more completely with the
letters of reference used in the descriptive portion of the specification :-
And in order that the effect of such Disclaimer and Memorandum of Alteration
may be better understood I have annexed hereto a copy of the said specification as
it will appear when such Disclaimer and Memorandum of Alteration have been
made as aforesaid.
"
<
<<
"
"
"
TO ALL TO WHOM THESE PRESENTS SHALL COME We CHARLES
" HARVEY of Birmingham in the County of Warwick Manager and WILLIAM
PADDOCK of the same place Engineer Send Greeting WHEREAS Her Most
Excellent Majesty Queen Victoria by her Letters Patent bearing date the
Ninth day of May in the year of our Lord One thousand eight hundred and
eighty two in the Forty fifth year of Her reign did for herself her heirs and
successors give and grant unto us the said Charles Harvey and William
"Paddock Her special license that we the said Charles Harvey and William
"Paddock our executors administrators and assigns or such others as we the said
"Charles Harvey and William Paddock our executors administrator and assigns
"should at any time agree with and no others from time to time and at all times
thereafter during the term therein expressed should and lawfully might make
use exercise and vend within the United Kingdom of Great Britain and
"
"

page_text: "Ireland the Channel Islands and Isle of Man an Invention for 'IMPROVEMENTS
IN TRICYCLES AND OTHER VELOCIPEDES' upon the condition (amongst others)
that we the said Charles Harvey and William Paddock our executors or
"administrators by an Instrument in writing under our or their or one of their
"hands and seals should particularly describe and ascertain the nature of the said
"Invention and in what manner the same was to be performed and cause the
same to be filed in the Great Seal Patent Office within Six Calendar months
next and immediately after the date of the said Letters Patent NOW KNOW
"YE that we the said Charles Harvey and William Paddock Do hereby declare
"the nature of our said Invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
"statement reference being had to the drawings hereunto annexed and to the
"letters and figures marked thereon (that is to say):-
CE
"Our invention consists of improvements in the driving gear of tricycles and
"other velocipedes with the purpose of quickening the speed upon level roads and
"of gaining additional leverage with slower speed in ascending inclines.
CE
"
Figures 1 and 2 (Sheet 1) represent in sectional elevation and cross section
our improvements in the driving gear applicable to tricycles and other
velocipedes such driving gear being planetary gear in conjunction with internal
spur gear, A is the crank or driving spindle B is an internal spur wheel
"secured to the spindle A this wheel gears into one two or more planet spur
"wheels C these planet wheels again gear into another similar central wheel D
having a long boss or bush through which the spindle A passes and upon which
"it is free to revolve-E is the chain or band wheel which communicates the
"motion to the driving wheels by a chain or band this wheel has bosses formed
upon it for the purpose of receiving studs F upon which the wheels C can
"revolve-G is a sliding clutch capable of moving laterally but revolving with
"the wheel D-H H are stationary stops and made to coincide with the holes I
provided in the clutch G.
**
"
86
"The action of this arrangement is thus, the clutch G being out of gear if the
spindle A is caused to revolve motion is communicated to the planet wheels
"C. C. and the wheel D revolves in the opposite direction and no motion is given
"to the chain wheel E but if the clutch G is thrown into gear with the studs F
"the chain wheel E will make one revolution for each revolution of the spindle A.
"If the clutch G is reversed and geared to the stationary studs H the central
"wheel D will be held stationary, the planet wheels C will revolve round it and a
slower speed will be given to the chain wheel E thereby giving greater leverage
"
" and facilitating the motion of the machine in ascending hills or inclines.
"
"C
Figure 3 sheet 1 is a diagram of the pitch of the wheels and Figure 4 is a
cross section of another arrangement which can also be used as a driver upon
"the crank for reducing the speed and increasing the power as described in
Figures 1 and 2. The parts corresponding with those shewn at Figures 1 and 2
are marked with like letters of reference so that their action will be readily
" understood
«
"
"E
"
EL
Referring to Sheet 2 Figure 1 is a side elevation. Figure 2 a cross section
"and Figure 3 a back elevation of our improved revolving clutch for engaging and
disengaging the before described gears and which can be thrown in or out of
gear when the machine is in motion. A is a disc which is secured to the
hollow axis of either of the stationary wheels D of the before described gears-
"it is cut upon its face to receive a slide (B). C. C. are armis upon the slide B
"which project through the back of the disc A upon the slide B is provided a
"catch D having a resilient action within the slide B and kept up in position by
means of a spring. A spring-catch D¹ is provided within the body of the disc A
E is the
"notched so as to engage in similar notches upon the edge of the slide B.
"chain wheel shewn detached in Figure 4. Fare recesses formed in the rim of
"the chain wheel E for receiving the catch D when the clutch is thrown into
gear.

page_text: "
Figure 5 is an elevation of the sliding plate or bar G also seen in Figure 2 in
"section this sliding plate or bar G is provided with two cross plates H also shewn
"in section Figure 2 when the sliding plate or bar G is moved up or down either
" of the cross plates H will come in contact with the arms C of the slide B thus
"moving it and engaging or disengaging the catch D from the recess F. The
sliding plate or bar G is also provided with a spring catch I which drops into a
recess I¹ in the disc A preventing the disc A from revolving thus throwing the
gear into action.
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"Figure 6 represents the method for raising and lowering the plate or bar (G)
"by means of a toothed wheel (J) engaging in a rack formed within the bar Gas
" at G'.-attached to the upper part of the bar G is a quadrant K which forms a
guide to hold the handle L secured to the wheel J pivotted to any convenient
"part of the machine in position as required by means of notches or catches
"formed upon it the handle L is made flat spring so that by side pressure it
engages or is released from the notches-the quadrant rises or falls with the
"bar G.
"
BS &
A
Figure 7 is a section and Figure 8 is a side elevation of a modified form of
"the improved revolving clutch Figures 1. 2 and 3 sheet 2 instead of the arms C
"of the slide B projecting through the back of the disc A they may be formed
upon each end of the slide as at M. M' the arm M being out of plane with the
arm M-Figure 9 shews the disc in section with the recess N for carrying the
"slide B and at the back of the disc is formed a guide (O) for receiving and
guiding the bar G.
<<
"
Having thus described the object and nature of our said invention and the
"manner in which the same is to be carried into effect We claim without limiting
" ourselves to these precise details.
"
"
Firstly the several improvements in the driving gear of tricycles and other
velocipedes consisting in the employment of the various combinations of spur
"wheels in conjunction with internal spur gearing usually termed planet gear for
"the purposes and in manner as herein more fully set forth and specified.
"Secondly-We claim the improved revolving clutch and the several modified
"forms thereof for the purposes and in manner as herein described."
In witness whereof I the said William Thomas Shaw have hereunto set my
hand and seal this Twenty fifth day of July in the year of our Lord One thousand
eight hundred and eighty three
Notice of the application for leave to file this Disclaimer and Memorandum of
Alteration having been advertized in accordance with my directions :-
I hereby grant my Fiat giving leave to the above named William Thomas Shaw
(the Assignee and now legal and equitable Owner of the herein before mentioned
Letters Patent) to file in the Great Seal Patent Office with the Specification to
which the same relates, the above written Disclaimer and Memorandum of
Alteration.
Dated this twenty fourth day of September 1883.

page_text: LETTERS PATENT to Charles Harvey of Birmingham in the County of
Warwick, Manager and William Paddock of the same place, Engineer for an
invention of "IMPROVEMENTS IN TRICYCLES AND OTHER VELOCIPEDES "
PROVISIONAL SPECIFICATION left by the said Charles Harvey and
William Paddock at the Office of the Commissioners of Patents on the
9th May 1882.
CHARLES HARVEY of Birmingham in the County of Warwick, Manager and
WILLIAM PADDOCK of the same place Engineer "IMPROVEMENTS IN TRICYCLES
AND OTHER VELOCIPEDES
"
This Invention consists of Improvements in the driving gear of tricycles and
other velocipedes with the purpose of quickening the speed upon level roads and of
gaining additional leverage with slower speed in ascending inclines.
With this view we employ a combination of spur or bevil wheels in conjunction
with internal spur gearing usually termed planet gear.
In one form we employ an internal spur wheel secured to the crank spindle
This spur wheel gears into two or more planet spurs, these planet spurs again gear
into a central wheel having a long boss or bush. through which the crank spindle
passes and upon which it is free to revolve.-A chain or band wheel is employed
to convey motion by means of chain or band to the driving wheels. This chain
wheel has bosses formed upon it to receive studs upon which the planet wheels
revolve. A clutch fast upon the bush of the central wheel revolves with it, but is
capable of lateral slining motion, and stops are fixed upon the frame of the machine
coinciding with holes in the clutch. To obviate the use of band or chain we can
employ further spur gearing working off the planet gear up to the driving axle of
the machine.
Our Invention further comprises an automatic balance gear which may also be
used as a driving gear. Upon the main spindle is keyed a spur wheel gearing
into pinions firmly attached to larger pinions which gear into an internal spur
wheel, studs being provided upon which the pinions revolve. The chain wheel is
free to revolve upon the spindle.

page_text: Another form of driving gear is as follows; We employ to bevil wheels and any
suitable number of bevil pinions gearing into each of the wheels. One of the
bevil wheels is keyed onto the crank spindle. This wheel gears into pinions
carried by the chain wheel, these pinions again gear into a second bevil wheel on
the opposite side. This second wheel is provided with a sliding clutch for the
purpose of locking either of the bevil wheels and the chain wheel together. Instead
of keying one of the bevil wheels upon the spindle the chain wheel may be keyed
to it; the connection between the chain wheel and one of the bevil wheels would
be by clutch, the other bevil wheel remaining stationary This arrangement will
answer for either of the above named forms also.
By another arrangement a spur wheel is hung free upon the spindle and there
are two internal spur wheels also free upon the spindle. A chain wheel has two
spur wheels one on each side, which gear into two internal spur wheels. The chain
wheel has also an internal spur wheel on its inner periphery which gears into the
wheel on the spindle. A sliding feather or clutch connects or disconnects the free
spur wheel on the spindle with the first pair of internal spurs; guide rolls may be
employed to keep the chain wheel in position.
The next part of our Invention refers to a revolving clutch by which the parts
may be thrown in or out of gear whilst the machine is in motion, and which
occupies less space than the sliding clutch.
The next part of our invention refers to the treadles, and for this purpose we
arrange the position of the arm and connecting rod so that when driving a crank
they shall always be at an acute angle with each other, by which arrangement
motion being communicated through the treadle the arm and connecting rod, a
motion of more than half a revolution is given to the shaft and dead points are
avoided.
Another form of treadle we make as a pendulum lever, the distance of vibration
being that of an ordinary walking step, two levers being provided, one for each foot
and moving in opposite directions. The full weight of the body can thus be
brought to bear upon the treadles. In connection with this pendulum treadle we
also propose to use a friction clutch in lieu of the crank in some cases.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Harvey and William Paddock in the Great Seal Patent
Office on the 9th November 1882.
CHARLES HARVEY of Birmingham in the County of Warwick Manager and
WILLIAM PADDOCK of the same place Engineer "IMPROVEMENTS IN TRICYCLES
AND OTHER VELOCIPEDES
Our Invention consists of Improvements in the driving gear of tricycles and other
velocipedes with the purpose of quickening the speed upon level roads and of
gaining additional leverage with slower speed in ascending inclines
Figures 1. and 2 (Sheet 1.) represent in sectional Elevation and cross section our
improvements in the driving gear applicable to tricycles and other velocipedes,
such driving gear being planetary gear in conjunction with internal spur gear, A. is
the crank or driving spindle B is an internal spur wheel, secured to the spindle A
this wheel gears into one two or more planet spur wheels C these planet wheels
again gear into another similar central wheel D having a long boss or bush through
which the spindle A passes and upon which it is free to revolve-E is the chain or
band wheel which communicates the motion to the driving wheels by a chain or
band this wheel has bosses formed upon it for the purpose of receiving studs F upon
which the wheels C can revolve-G is a sliding clutch capable of moving laterally
but revolving with the wheel D.-H, H. are stationary stops and made to coincide
with the holes I. provided in the clutch G.
The action of this arrangement is thus, the clutch G being out of gear if the
spindle A, is caused to revolve motion is communicated to the planet wheels C. C.
and the wheel D, revolves in the opposite direction and no motion is given to the
chain wheel E, but if the clutch G, is thrown into gear with the studs F, the chain
wheel E. will make one revolution for each revolution of the spindle A.-If the
clutch G is reversed and geared to the stationary studs H, the central wheel D.
will be held stationary, the planet wheels C. will revolve round it and a slower
speed will be given to the chain wheel E. thereby giving greater leverage and
facilitating the motion of the machine in ascending hills or inclines.
Figure 3. Sheet 1. is a diagram of the pitch of the wheels and Figure 4. is a cross
section of our improved Automatic Balance or differential gear which is specially
adapted to be fitted upon the spindle connected with the driving wheels so that
each wheel may be free and at the same time will be driven with equal power,
thus enabling the machine to turn round corners without strain upon the spindle.
This arrangement can also be used as a driver upon the crank for reducing the
speed and increasing the power as described in Figures 1. and 2.-A. is a spur
wheel keyed fast to the spindle B. this wheel gears into pinions C. C. which are
firmly attached to two larger pinions D. these gear into an internal spur wheel E-
F. F. are studs upon which the wheels C. and D are free to revolve. H. is the
chain wheel revolving on the shaft B.-motion is communicated to this wheel H
from the driving parts.
The action will be thus-The wheel A. being secured to one of the driving wheel
spindles and the wheel E to the other driving wheel upon motion being
communicated to the chain wheel H an equal driving motion is given to the
wheel A. and the wheel E. but if either of the large driving wheels should meet
with more resistance than the other on the road the planet wheels C, D, act as an
automatic balance allowing one driving wheel to advance quicker than the other at
the same time giving to each an equal driving power.
Figures 5. and 6, Sheet 1. represent inside elevation and section another form of

page_text: driving gear having two bevil wheels and one two or more bevil pinions gearing
into each of the wheels A. is the crank spindle upon which the bevil wheel B is
secured, this wheel gears into the pinions E. E. carried by the chain wheel C these
pinions again gear into a similar bevil wheel D. on the opposite side this wheel D.
is provided with a sliding clutch G. which is used for locking the wheel D. and the
chain wheel C. together.-Motion being communicated to the crank spindle A. and
bevil wheel B. through the pinions E. gives a reverse motion to the bevil wheel D.
but if the clutch G. is made to engage with the chain wheel C. the wheels B. D.
and C. all revolve together and the wheel G will make one revolution for each
revolution of the crank spindle-If the sliding clutch is reversed and held from
revolving it prevents the revolution of the wheel D. and then the pinions E.
will roll round the stationary wheel D giving a reduced speed to the chain
wheel C.
Figures 7. and 8. sheet 1. shew in side elevation and section another modification
of our improved driving gear-A. is the shaft upon which the spur wheel B. can
revolve freely C. C. are two internal spur wheels also free upon the shaft A. D. is
the chain or band wheel having two spur wheels D¹. thereon one on each side which
gear into the two internal spur wheels C. C, the chain wheel D. has also an internal
spur wheel D². on its inner diameter which gears into the wheel B. on the spindle.
E is a sliding feather or clutch for connecting and disconnecting the wheels C. C.
and B when the Clutch E. is in the position shewn no motion is given to the
wheels if the clutch E is moved to the left the wheel B. will be engaged with the
shaft A. driving the chain wheel D by means of the internal spur wheel, if the
clutch is reversed the wheel B. will be disengaged and the two internal spur wheels
will revolve with the shaft A giving motion to the chain wheel C. but at an
increased speed.
Referring to Sheet 2, Figure 1. is a side Elevation. Figure 2 a cross section and
Figure 3 a back elevation of our improved revolving clutch for engaging and
disengaging the before described gears and which can be thrown in or out of gear
when the machine is in motion A, is a disc which is secured to either of the
stationary wheels cut upon its face to receive a slide (B.) C. C. are arms upon the
slide B. which project through the back of the disc A, upon the slide B. is provided
a catch D. having a resilient action within the slide B. and kept up in position by
means of a spring-A spring-catch D. is provided within the body of the disc A.
notched so as to engage in similar notches upon the edge of the slide B.-E. is the
chain wheel shewn detached in Figure 4. F. are recesses formed in the rim of the
chain wheel E. for receiving the catch D when the clutch is thrown into gear.
Figure 5, is an Elevation of the sliding plate or bar G. also seen in Figure 2. in
section, this sliding plate or bar G. is provided with two cross plates H. also shewn
in section Figure 2, when the sliding plate or bar G. is moved up or down either of
the cross plates H. will come in contact with the arms C. of the slide B. thus moving
it and engaging or disengaging the catch D from the recess F. The sliding plate
or bar G. is also provided with a spring catch I, which drops into a recess I'. in
the disc A. preventing the disc A. from revolving thus throwing the gear into
action.
Figure 6, represents the method for raising and lowering the plate or bar (G.) by
means of a toothed wheel (J.) engaging in a rack formed within the bar G. as
at G-attached to the upper part of the bar G. is a quadrant K. which forms a
guide to hold the handle L. secured to the wheel J. pivotted to any convenient part
of the machine in position as required by means of notches or catches formed upon
it the handle L. is made as a flat spring so that by side pressure it engages or is
released from the notches-the quadrant rises or falls with the bar G. Figure 7.
is a section and Figure 8. is a side elevation of a modified form of the improved
revolving clutch Figures 1. 2. and 3. sheet 2. instead of the arins C. of the
slide B projecting through the back of the disc A. they may be formed upon each
end of the slide as at M. M'. the arm M being out of plane with the arm M¹-
Figure 9, shews the disc in section with the recess N. for carrying the slide B,

page_text: Che DACK of the disc is formed a guide (O). for receiving and guiding
the bar G.
Another arrangement of our improved revolving clutch is shewn in Figures 1.
and 2, sheet 3. upon the wheel D, is secured a disc plate F having a recess G
formed on one side and towards its outer circumference-The chain wheel E. has
also a corresponding diameter to the outer diameter of the recess G. the smaller
diameter of the recess G. projects towards the chain wheel, but not to touch it-
Within this chamber or recess is fitted a spring friction ring H, H' shewn detached
in Figure 3. preferably made in two parts and seratted or notched on its outer
circumference corresponding notches being provided in the outer diameter of the
recess G. and also the interior of the rim of the chain wheel E. Instead of being
notched the faces of the recess may be plain and faced with leather, also the spring
ring H. H'.
A spring ring J. shewn separately in Figure 4. is provided and passes loosely over
the outer diameter of the friction ring H. the ring H. being thinner than the
recess G. two ears are formed on one side of the ring J. at K. K. which ears are
slotted to allow of the bolt L passing through them for the purpose of forcing the
two cars nearer to each other. On the upper side of one ear rests an abutment
tube through which the bolt I. passes, which is provided with a screw at its upper
end within the enlarged part M. which is held in place by a bracket N secured to
the machine, the upper end of the screw L. passes above the guide M. and into a
threaded nut handle O, within which the screw L engages.
When the handle O. is turned in one direction the screw L. is drawn upwards
and the abutment tube M is forced downwards causing the ears K, K. to be
brought nearer to each other and reducing the inside diameter of the ring J and
also the spring ring H. which frees it from contact with the wheel E also the
wheel F. when both are then free to revolve-If the closing of the ring J is con-
tinued the inner diameter of the double rings will close upon the small diameter of
the recess G. and disc F. and the wheel D. will be held firmly while the wheel E.
will be free to revolve.
Referring to Sheet 4-Figure 1 Illustrates a method of driving a tricycle or
velocipede by means of treadles which shall have a backward and forward motion
similar to the motion of a person's fect in the act of walking, the vibration of the
pedals being about the ordinary walking step-The pedals are so constructed that
the path taken by each pedal shall be inclined so that a person standing in an
erect position and walking upon these pedals will have to raise the forward step of
the foot to a higher level than the one that has completed its step, this action is
equal and similar to a person walking up hill (or on an incline) it is this inclined
position and motion of the treadles, combined with the weight of the person's body
acting upon them that gives the turning motion, and the work performed in this
turning motion is equal to the product of the weight of the body in pounds by the
vertical height in feet through which it is raised, therefore the more the path of
the treadles is inclined the vertical height through which the body will have to be
raised will have to be increased, more work will be performed and greater power
given to drive the machine.
A. A'. are links vibrating upon the framing of the machine, the lower end of
one of these links is formed of a T. or L form and preferably tubular the other
corresponding link has a lateral spindle formed on its inner side which passes
through and vibrates within the tubular portion of the other link giving a long
bearing to prevent lateral movement of the links, the outside of the tubular part is
carried by suitable bearings attached to the frame, the upper ends of the links A. A¹.
are provided with long tubular bearings C. C. which carry two treadle arms B. B¹.
vibrating upon studs within the upper ends of the links A A. at C. C. the arms B.
and B. are extended above the ends of the links A A'. and jointed to two rods D. D'.
which are free to move vertically, the other end of the rods D. D¹. are jointed to a
lever E. which can be actuated by hand by means of the rod F. connected to a hand
lever not shewn-When the rod F. is drawn forward, the lever E. moves the

page_text: rods D. D¹. in the reverse direction and also the upper ends of the treadle arms B. B¹.
thereby giving to the path of the treadles a greater incline and elevation.
Another method of giving a greater or less incline to the treadles G. G¹. is to
have the rods D. D¹. pivoted upon a fixed support at H. and the reverse ends
caused to rise and fall in slots or guides on the upper ends of the arms B. B¹-
J. J'. are connecting rods jointed to the treadle arms or any other reciprocating
part, and connected to two cranks K. K. L is the chain wheel actuated by the
cranks, this wheel is connected to the driving wheel of the velocipede by chain or
tooth wheels.
Referring to Sheet 5. Figure 1. is a side Elevation, and Figure 2. a plan of a
tricycle to be driven by our improved walking treadles, in conjunction with spur
gearing rack treadle bar, and friction gear in lieu of cranks A. A¹. are the treadles
caused to move in an inclined path these treadles or footboards are supported and
guided by arms B. B'. which are provided with a lateral projection at each end C. C'
one of which is secured and vibrates freely under each treadle to the other or upper
projection at D. is connected toothed segment wheels D. D³. supported and held in
position by socket heads E, E'. upon which the arms B B¹ can vibrate,-these socket
heads E. E. are the upper portions of two other vibrating arms F. F. which are
provided with lateral studs G. G¹. for carrying two other toothed wheels H. H³.
these wheels H. H'. gear into other segment wheels J. J. upon which the
wheels H. H. vibrate The lower end of the segment wheels J. J. are provided
with bosses and are supported by tubular spindles K. K₁ upon which they are
free, but are prevented from revolving by the rods one only being shewn at J-
The lower end of the arms F. F¹, are furnished with lateral spindles which pass
through and are supported by the tubular spindles K. K'. within which they can
vibrate, the tubular spindles K. K. being firmly secured to lever arms L. L'. which
are supported by a spindle M upon which they are free to more vertically the outer
ends of these levers are by preference expanded and formed into open forked joints
and are provided with spindles at their ends one as at C. being shewn upon the
spindles friction wheels P. are fitted to revolve loosely, these friction wheels P. have
toothed spur wheels P¹ in the centre of their length, which engage with the
toothed rack of the treadle bar A³. A on either side of these spur wheels P¹. are
extended plain rims R. but a little larger in diameter than the spur wheels P¹, and
they may be faced with leather or made of any suitable material to increase the
bite S. S¹. are other friction wheels secured to the driving shaft and of similar
form to the wheels P. but the centre portion is plain and serves as a guide for the
racks The outer rims of these wheels S. S¹. are faced with leather or any suitable
material to increase the bite, and are made to work in contact with the wheels P.
when pressed together by the lever L, the friction wheels P. and S. S'. also answer
for the brake when actuated by the foot pedal L³-On the inner side of each
wheel P. P¹. is secured a bevil wheel T. T. these two wheels are geared together by
a third bevil wheel U. supported upon bearings on the levers L. L'. and are for the
purpose of reversing the motion of the treadles, so that when one is moving in one
direction the other treadle shall move in the opposite direction-We also propose
to use other means for reversing the treadle-For instance as shewn in figure 3.
we may secure on the inside of each treadle a rack V. into which a central toothed
wheel W. gears-By another arrangement as in Figure 4, the racks may be under-
neath the treadles, gearing into two or more spur wheels W. W communicating a
reverse motion from one to the other-X. X'. is the frame of the machine the part
carrying the pedals is made to be raised and lowered at one end to give a greater or
less incline to the pedals, the front or steering part X'. is formed at it's inner end
into a segmental slotted guide and the other part X has also a similar segment
but shorter, the parts X. X'. are fitted together forming a radial guide vertically.
The frame X. is provided with adjustable stops ✗2. which come into contact with
a projecting arm X³. on the arms F. F', this will throw the wheels P. and S. out of
gear. The levers L. L. are provided with springs for keeping the friction wheels P.
and S. S¹. from contact with each other when requisite-Y. is a tubular column

page_text: the
shewn more clearly in Figure 1, Sheet 6. supported by the framing X.
lower portion of this tube is formed into a slot one on each side, within this tube
is a sliding screw nut connected to the sliding ring Y². this ring is connected by
rods Y³. to the end of the frame X-Also within the tube Y. is a spindle which
extends to the top of the column Y. to which spindle is secured a small bevil
wheel Y. the lower end of the spindle is formed into a screw and engages with
the sliding nut.
Upon the upper portion of the column Y. is another outer tube Z. which is guided
by the inner one, on the top of this outer tube is secured a bracket (Z. sheet 6)
this bracket carries a short cross spindle Z2. to which is secured another small bevil
wheel Y. and geared to the wheel Y, on the extreme ends of this short spindle is
fastened two actuating handles Y. which can be used for steering the machine, and
at the same time to raise or lower the frame X.-On the lower end of this outer
tube Z. is secured an arm Z2. which is connected to the steering head by a rod.
Referring to Sheet 6. Figure 1. is a side Elevation and Figure 2. a plan shewing
another modification of our improved walking treadles having a pedal action-
A. A¹. are the foot boards and pedal frames which are made adjustable to be raised
and lowered to any convenient angle to suit the foot, as shewn in dotted lines-
The under side of these pedal frames A. A'. is a flat surface curved at each end and
they move backward and forward upon rollers B. B'. which rollers revolve upon
other similar plane surfaces C. C'. with reversed ends and which are curved upwards
to prevent the rollers from getting displaced-On the underside of these planes
C. C. are formed inclined slots D. D'. which are supported by two cross bars E. E¹.
provided with rollers to engage within the slots D. D.-The pedal frames and
also the planes C. C. are to have side guide plates F. shewn detached, these plates
have a long slot through which the small spindles of the rollers pass, and prevents
the pedal frames A. A. from rising out of place--G. is a wheel revolving freely
upon an eccentric stud H shewn detached and is fitted with a spiral spring to give
it a reverse motion when required-On a portion of the width of this wheel G is
coiled a flexible band or chain the other end being secured to the treadle bar J. J,
the upper side of the bar J. is faced with leather, and the friction wheels H H¹.
secured to the driving wheel may be similarly faced if found desirable-K. is a
friction wheel shewn separately which may also be faced with leather, this wheel
is provided with spring arms so that when a pressure is put against its outer rim
it will become slightly eccentric to the boss L, and insure perfect contact between
the top of the bar J. and rim K. and also the two outer sides of the wheel G. and
the corresponding parts of wheel H. H. this contact of the parts also answers.for
the brake The wheels G and H are made to approach and recede from each other
by means of an eccentric M held in position by a bracket N. secured to the frame X.
the eccentric M is provided with a slotted arm at its lower side and this is
connected by a rod O. to the plane C. C'. on each side, the eccentric M. has also
another arm P. on the opposite side-the treadle bar J. is furnished with a stop R.
which stop will come in contact with the lever P which will throw the wheels G.
and H. out of gear, and the bars J. or J'. may be used as a brake, by pressing the
foot upon the brake pedal S. as seen in Figure 4. the pedal and bar may be guided
by a series of vibrating links as T. U. V. the outer ends of the links T. V. vibrating
ou centres secured to the frame, W, Figure 2. are legs or supports attached to the
frame and fitted with rollers, their use is to keep the machine in an upright position
when not in motion.
The steering head X2, is formed tubular and the end of the frame (✗¹) passes
through a slot and into the tubular head X2. so that the end of the frame X. may
be capable of sliding within the tubular head a spiral spring being provided
between the bottom of the tubular head and the end of the frame X. by which
means in travelling shocks will be obviated
Figure 1. sheet 7. represents in a side view and Figure 2 is an end elevation
partly in section a modified form of our improved walking treadle, one treadle
with its working parts is shewn, the other one being similar-This arrangement

page_text: can be fixed on the framing of a Tricycle or other velocipede where it is not
convenient to elevate the framing of the Machine itself for the purpose of giving
greater inclination to the path of the treadles-A is the treadle upon which the
foot of the rider acts-B. is a vibrating arm the lower end of which is bent at
right angles and forms a support upon which the treadle A can turn, the upper
end of the arm B. is provided with a lateral spindle C. concentric with a toothed
segment wheel D. to which wheel it is secured, the other part of the spindle C. is
fitted into and vibrates within a long socket bearing E. on the end of another
vibrating arm F, this arm has a lateral stud G upon which a toothed wheel H can
revolve, this wheel H gears into the toothed wheel D. and also into another segment
wheel J. of larger radius firmly attached to an arm K. and also to an arm L, so that
the arms L. and K. may move at the same time around the centre of the segment J.-
The segment J is provided with a boss M and is firmly secured upon the end of a
tubular spindle N. partly shewn in section Figure 2. The arm F has upon its
lower end a lateral tubular spindle O. shewn in section which passes through and
is supported by the tubular spindle N, another tubular spindle P. passes through
the spindle O, which spindle P. serves to carry the opposite corresponding arm to
the arm F. R, is a connecting link connected at one end S. to the arm F. the
other end of the link R. is connected to a vibrating lever T. by a joint U. the lever T
is rigidly connected to another arm lever V. by the tubular part W. and vibrates
upon a stud X.
To the opposite end of the lever arm V is jointed a connecting
rod Y. provided with a suitable bearing Y. and fitted to work upon a crank pin Y³.
Z. shews the chain or gear wheel from which motion may be communicated to the
driven wheel, this wheel serves for the crank also, the path of the crank pin is
shewn at Z.1. Figure 1.
Z. Figure 2. shews the crank spindle which passes through the inner tube P. to
the opposite end and is connected to another corresponding crank Z.
To throw the treadle motion into action so that it may give rotary motion to
the crank wheel Z. the arm L is elevated and partly rotates the tubular spindle N.
on its axis and this will cause the path of the treadles to move in an inclined
direction
The tubular spindle N. is held in position by suitable bearings attached to the
machine or to a light frame which can be adjusted or moved backwards or
forwards on the framing of the Tricycle or other velocipede for the purpose of
taking up any slackness that may arise in the chain or other gearing.
Figure 1. sheet 8 represents a modification of the improved treadle action just
described A. is the treadle acted upon by the foot. B is a vibrating arm, the
lower end of which is bent at right angles and forms a support upon which the
treadle A. can move-The upper end has a lateral spindle C. upon this spindle C is
fitted a slide, or roller C. which is caused to move in a straight path by the slot D,
E is another vibrating arm connected to the arm B. at a suitable position by a
lateral spindle F., the lower end of this arm E is supported and carried as described
in Figures 1. and 2. sheet 7.-G. is a frame having a radial slot for the free working
of the long socket bearing F2 and at its upper end is formed a slot guide within
which the slide C¹. moves-The lower end of the frame G. is firmly secured to a
tubular spindle as described in sheet 7. and also to an arm H, this arm is for the
purpose of increasing or diminishing the height of the path of the treadles, by
elevating or depressing the lever H. J. is a lever arm connected to the arm E and
vibrates with it K. is a joint rod which connects the lever J to another longer
beam arm L. by joints M and N. this beam vibrates on a fixed spindle O. on the
framing G. to the opposite end of this beam is jointed the Rod P. at R the lower
end of this rod P. is connected to a crank S. to which on moving the treadle from
left to right will give rotary motion to the crauk S. and the crank shaft not shewn
from which motion may be communicated to the driving wheels.
Figure 1. Sheet 9. shews another nodification of our improved treadle action,
A is the treadle B. is a vibrating arm, C. is a lateral spindle onthe arm B-D is
another lateral spindle also on the arm B, and which moves in a straight path by

page_text: the slot E. and guide block F.-The arm B is continued beyond the lateral
spindle D. at the upper end of the arm B. is connected by a joint G. the rod H.
which at its opposite end is connected to a crank J, by a crank pin K.-L is a frame
having a radial slot M for the free passage of the lateral spindle C. and the upper
part of this frame is formed into a guide for causing the spindle D. to move in a
straight course-N. is a vibrating arm provided with a long bearing O. and
connected to the arm B. by a spindle C. upon which it can vibrate, the lower end of
this arm N. is connected to a tubular bearing as described in sheet 7.
P. is an
elevating arm rigidly secured to the framing L, upon elevating this arm P. the
frame L. is inclined to the right and the treadle A will move in an inclined path
and will then descend from the position shewn to a lower one on the opposite side,
and the treadle A. upon returning to its original position by means of a spring, the
crank J. will have completed two whole revolutions.
Figure 5 Sheet 3 shews a diagram of a lever which may be used for our improved
walking treadles-A is the treadle upon which the foot rests-B is a rod suspended
from the framing at C upon which it can vibrate-D is another rod having at its
upper end a moving centre E upon which it vibrates the lower ends of these rods B
and D are connected to a continuation of the treadle bar-If the centre E of the
rod D is moved towards the rod B a greater elevation will be given to the pedal A
and if the centre E is moved in the opposite direction or from the rod B the
elevation of the treadle A will be decreased the vibration of the rod B can be
utilised for driving a crank F by a connecting rod G or for obtaining rotary motion
by means of the friction wheels already shewn in Sheets 5 and 6.
Figure 6 Sheet 3 is another modification of our improved walking treadle-
A is an incline upon which the treadle B moves backwards and forwards upon
wheels or rollers secured to the treadle frame, or the wheels may be attached to the
incline A and the treadle roll upon them C is an adjustable treadle board which
can be set to any angle for the convenience of the foot D is the connecting rod
which communicates the reciprocating movement of the treadle frame B to a
crank E froin which rotary motion may be imparted to the Machine.
Figure 7 Sheet 3 shews a method of giving a rotary motion to a Tricycle or
other Velocipede by means of a toothed spur wheel rolling within a stationary
internal spur wheel of double its diameter, and this action is based upon the
principle that a circle of any given diameter rolling within another circle of double
its diameter any point in the smaller circle will describe a straight path across the
diameter of the larger circle A is the pedal upon which the foot acts and is
supported by a spindle secured to the wheel B at its pitch line C is an internal
spur wheel of double the diameter of the wheel B and held from revolving by the
arm D this arm D is made to partly rotate the wheel C on its axis so as to give
greater or less inclination to the treadles A-E is a connecting arm or link one end
of which link has a lateral spindle upon which the wheel B revolves the other end
of the link E is guided and coincides with the axis of the internal spur wheel C-
When the centre of the spindle that supports the pedal the centre of the wheel B
and the centre of the spur wheel C coincide or are in one straight line at E G
horizontally Vertical pressure on the Pedal A would not communicate rotary motion
to the wheel B but if the arm D is elevated the wheel C is partly rotated upon its
axis and an inclination is given to the path E G of the treadle motion is thus
given to the wheel B and the wheel B will cause the movement of the crank link E
from this link E motion may be communicated direct to the driving wheel or to a
countershaft upon the framing of the Machine-or as shewn in Figure 1 Sheet 10
in addition to the wheel A we may employ a smaller spur whee! B secured to the
wheel A and gearing into a similar wheel C connected with the driving parts
and concentric with the internal spur wheel D by this arrangement increased speed
is obtained.
Figure 2 Sheet 10 shews a method for providing a crank action so that instead
of the wheel A making a whole revolution within the wheel D it may travel to
and fro in a segment of the wheel D. motion may be gained from the stud E of

page_text: the spur wheel A, or from the vibrating crank arm F, G G' shews the point of the
treadle at the commencement of the stroke H H is the position of the same at the
completion thereof.
Having thus described the object and nature of our said Invention and the
manner in which the same is to be carried into effect, We claim without limiting
ourselves to these precise details.
Firstly the several improvements in the driving gear of Tricycles and other
Velocipedes consisting in the employment of the various combinations of spur or
bevil wheels in conjunction with internal spur gearing usually termed planet
gear, for the purposes and in manner as herein more fully set forth and specified
Secondly We claim the Improved Automatic balance gear which may be also
used as a driving gear as herein shewn and described.
Thirdly We claim the improved revolving clutch and the several modified
forms thereof for the purposes and in manner as herein described
Lastly We claim the several improvements in the arrangement and combination
of the treadles with the mechanism in connection therewith for the purposes and
substantially in manner as herein more fully set forth and specified
In witness whereof We the said Charles Harvey and William Paddock have
hereunto set our hands and Seals this seventh day of November in the
year of our Lord one thousand eight hundred and eighty-two.