Improvements in Detachable Brake Devices, chiefly for Cycles.
Year: 1892

page_text: Date of Application, 13th Dec., 1892
Complete Specification Left, 22nd Sept., 1893-Accepted, 28th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Detachable Brake Devices, chiefly for Cycles.
We, CHRISTOPHER SHACKLOCK of Humber & Co. Ltd., Wolverhampton, in
the County of Stafford Foreman, and MARTIN DIEDERICH RUCKER of Humber
& Co. Ltd., 32 Holborn Viaduct, City of London, General Manager, do hereby
declare the nature of this invention to be as follows:-
This invention relates to detachable brake apparatus chiefly for cycles, and
particularly for bicycles, where it is often desirable to be able to promptly and
without trouble remove the whole brake apparatus. Modifications may be made,
but the invention will be understood from the following description.
A suitable block or bracket is slotted or otherwise arranged to carry the ordinary
brake lever or handle through both of which passes a bolt or stud preferably
squared on the outside end and carrying the lock nut. This stud may be left
unscrewed in that portion upon which the brake lever works. The bracket may
be grooved or recessed so as to conveniently fit upon the handle bar or other
supporting portion of the frame-work to which it is to be attached, usually a tube,
and a yoke preferably adapted to act like a sugar-tongs spring is arranged to fit
over the handle bar or support and engage with the previously described block or
bracket. This latter is provided with catches of any desired form while the yoke
has suitable openings or recesses into which these catches may fit the result being
that it is only necessary to place the yoke around the handle bar and spring it on
to the bracket when the catches will secure themselves. To firmly secure the
whole it is only necessary to screw up the stud by means of its squared end or by
other suitable means and then screw up the lock nut and the whole is properly
fixed. If desired a loose block or distance piece may be provided between the
bracket and the handle bar and may be forced against the latter by the stud when
screwed up; this is desirable as besides more efficiently gripping the handle bar it`
prevents the latter being spoiled by the stud which may if desired enter partly into
the loose block. The spring for operating the brake lever may with advantage be
secured to or form part of the bracket or slotted block.
The previously described stud may be in the form of a bolt if desired with the
lock nut working below the head, but it is preferred to make it in the form of a
stud in order to secure the non-screwed part as a bearing for the brake lever.
In a modified form the yoke and block are employed as before but the yoke is
provided with beads or enlargements at its ends fitting into corresponding recesses
in the block so that the yoke may be moved sideways into the block. Otherwise
the arrangements in this case will be similar to those first described.
Dated this 13th day of December 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Detachable Brake Devices, chiefly for Cycles.
We, CHRISTOPHER SHACKLOCK, of Humber & Co. Ltd., Wolverhampton, in
the County of Stafford, Foreman, and MARTIN DIEDERICH RUCKER, of Humber
& Co. Ltd., 32 Holborn Viaduct, in the City of London, General Manager, 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:-
This invention relates to detachable brake apparatus chiefly for cycles, and
particularly for bicycles, where it is often desirable to be able to promptly and
without trouble remove the whole brake apparatus.
The invention will be best understood by reference to the accompanying drawings,
in which
Figure 1 is a perspective view showing the detachable brake device applied. to
the handle bar of a cycle and
Figures 2, 3 and 4 are perspective views drawn to a larger scale showing the
parts of the device separated from each other.
Like letters indicate like parts throughout the drawings..
A is a block or bracket slotted or otherwise arranged as at A¹ to carry the
ordinary brake-lever or handle B, and C is a bolt or stud, preferably squared at C',
which passes through A and has screwed upon it the lock-nut C2. If desired, the
central part of the bolt or.stud C corresponding with the recess A¹ may be left
plain so as to give a proper bearing surface for the lever B to oscillate upon. Dis
the yoke which, for the sake of lightness, is preferably cut away as at D', Figure 2,
and is provided with one or more conveniently two openings D2 in each branch of
the yoke. A are projections or teeth of any suitable form on the sides of the
block A for engaging with the openings D2 of the yoke D. E is the block which
we prefer to use for clamping against the handle-bar F so as to avoid damaging it
by screwing the end of the bolt C against it as would be necessary were a block
such as E or the equivalent thereof not provided.
To secure the before-described device to the handle-bar the parts are placed
upon the handle-bar the yoke D embracing it and the bracket A' is forced between
the free arms of the yoke so that the arms will be forced apart by the projections A²
which will then engage the said openings, the resilience of the yoke D causing its
arms to resume their original position. The block E may then be inserted between
the handle-bar F and bracket A. after which the stud or bolt C may be screwed
tightly against the block E by means of the squared end C thus causing the
handle-bar F to be rigidly clamped between the yoke D and block E. The
lock-nut C2 is then screwed against the bracket A so that the whole is made secure.
The block E may be recessed at the part at which the end of the bolt C bears
upon it so as to prevent the block from shifting its position.
When it is desired to detach the brake device the lock-nut C and stud or bolt C
are slackened thereby releasing the clamping block E which may then be moved
longitudinally from between the handle-bar F and bracket A. By then pressing
the block A farther into the yoke D' the arms of the yoke are moved further apart
so that the openings D³ are disengaged from the projections A. By then slightly
disturbing the lateral position of the yoke in relation to that of the bracket A¹
or vice versa these two parts may be readily separated and detached from the handle-
bar F. Or a screw-driver or other implement may be used to separate the
parts D and A.
The brake-lever B is then completely detached from the handle-bar F, and any
other desired means, which however are outside the present invention, may be
employed for detaching the other parts of the brake device, including the brake-rod
and shoe, from the cycle.

page_text: The spring for operating the brake-lever may with advantage be secured to or
form part of the bracket or slotted block.
The previously described stud C may be in the form of a bolt if desired, with
the lock-nut C working below the head, but it is preferred to make it in the form
of a stud in order to secure the non-screwed part as a bearing for the brake-lever.
In a modified form the yoke and block are employed as before but the yoke is
provided with beads or enlargements at its ends fitting into corresponding recesses
in the block so that the yoke may be moved sideways into the block. Otherwise
the arrangements in this case will be similar to those first described.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In a detachable brake device a block or bracket such as A and yoke such
as D substantially as described and illustrated in the accompanying drawings.
2. In a detachable brake device the combination with the block or bracket A and
yoke D of projections such as A and openings such as D2 adapted to engage each
other substantially as described and illustrated in the accompanying drawings.
3. In apparatus such as described the combination with the handle-bar and brake-
lever of a bracket such as A A² screwed stud or bolt C yoke such as D D² and
block such as E substantially as described and illustrated in the accompanying
drawings.
4. A detachable brake device in which the device is secured to the handle-bar
and the brake lever is carried by a single bolt.
5. In a detachable brake device a double purpose bolt such as C which locks the
device to the handle-bar and carries the brake-lever.
Dated this 21st day of September 1893.
A CTI AIZLOCIZ
Dated this 21st day of September 1953.
C. SHACKLOCK.
M. D. RUCKER.
W. P. Thompson & Boult,
Agents for the Applicants.