Year: 1897

page_text: Date of Application, 13th May, 1897
Complete Specification Left, 12th Feb., 1898-Accepted, 23rd Apr., 1898
I, HARRY TURNER HAYDON, of 47, Union Passage, Birmingham, in the County
of Warwick, Merchant, do hereby declare the nature of this invention to be as
follows:-
My invention has for its object improvements in cycles and other vehicles and
refers particularly to the means for adjustment of the driving or rear wheels of
safety bicycles and is equally applicable to the adjustment of other vehicles having
chain or other similar gear and by which I provide a simple ready and effective
means for such adjustment.
In carrying my invention into effect I mount a block to slide in the ordinary
slotted ends formed in the frame for receiving the spindle of the driving wheel
the said block being fixed to the spindle either by riveting or by nuts in the
ordinary way. The lower or upper edge of the block is provided with a number
of teeth and attached to the slotted terminal of the frame is a toothed rack pivoted
at one end the teeth of which engage with the corresponding teeth on the block
so that when the rack is in engagement with the block it is impossible to remové
the block until the rack has been turned upon its pivot into a position free of
engagement with the block, upon which the block can be moved and then again
locked in position by the engagement of the rack. I may form the rack of spring
steel and provide it with a catch at the reverse end to that of the pivot so that
it can be readily locked in position or I may provide a thumbscrew or other means
for securing it when in engagement with the block. The rack may be formed
on the slotted terminal and means provided for raising or lowering the block
above or below the rack when adjusting its position.
трьо
I, HARRY TURNER HAYDON, of High Street, late of Union Passage, Birmingham,
in the County of Warwick, Merchant, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
My invention has for its object improvements in cycles and other such vehicles
and refers particularly to the means for adjustment of the driving or rear wheels
of safety bicycles and is equally applicable to the adjustment of other vehicles

page_text: having chain or other similar gear and by which I provide simple and ready means
for such adjustment.
In order that my invention may be clearly understood and easily carried into
practise I have appended a sheet of drawings upon which
Figure 1 is an elevation of the adjustable attachment for the rear driving wheel.
Figure 2 is a section on the line 1-2.
Figure 3 is an end elevation shewing the catch.
Figure 4 is a view shewing a modification in the locking arrangement.
Figure 5 is also a view shewing a modification.
Figure 6 is a similar view to Figure 1 but shewing the teeth applied direct to
the frame C.
The
In carrying my invention into effect I mount the block A to slide in the ordinary
slotted ends c¹ formed in the frame C for receiving the spindle D of the driving
wheel the said block A being screwed on to the spindle after which the blocks A
are inserted in the slots c¹ and secured after by nuts in the ordinary way.
lower or upper edge of the block is provided with a number of teeth or projections a¹.
Attached to the slotted terminal of the frame is the toothed rack B being pivoted
at the end 2 so that the teeth 6 engage with the corresponding teeth a¹ on the
block. When the rack B is thus in engagement with the block A it is impossible
to remove the block until the rack B has been turned on its pivot into a position
free of engagement with the block upon which the block A can be moved and
then again locked in position by the engagement of the rack.
I may lock the
rack B in its engaged position in a variety of ways, I may form the rack of spring
steel and provide it with a catch 3 at the reverse end to that of the pivot so that
when closed the shoulder of the catch engages with the edge of the slot of the
terminal by which means all downward thrust is resisted and for unlocking it is
only necessary to press the rack B out laterally until the catch 63 is clear of the
terminal end C. Another mode of locking the rack in engagement is shewn by
Figure 4 where the lever D is pivoted to the rack and is pressed over the cam
nose by which means it is retained in position. In Figure 5 a link band E
with catch e¹ is mounted to drop over the lever and a spring J is provided whereby
liberty is allowed in the fastening for the rack B to spring sufficiently to allow
the block A to be pressed backward and slide over the teeth in the direction of
the arrow H without releasing the fastening of the rack which would then only
require to be unfastened when moving the block A and spindle in the reverse or
forward direction.
The teeth 61 may be formed on the edge of the slot in which case the side c³
of the terminal is made moveable on the pivot so that the block A can be moved
clear of the teeth for adjustment as shewn by Figure 6.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is::
1st. The sliding block A having teeth a¹ in combination with the toothed
rack B substantially as and for the purpose herein set forth and shewn upon the
accompanying drawings.
2nd. In combination with a sliding block A. the modes of and means for attach-
ing and securing the rack B substantially as and for the purpose herein set forth and
shewn upon the accompanying drawings.
1000
LEWIS WM. GOOLD,
Agent for the Applicant, 5, Corporation Street, Birmingham.