Improvements in and relating to Brakes for Road Vehicles.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Brakes for Road Vehicles.
I WALTER HAWLEY of No. 5, The Green, Penistone, in the County of York,
Timber Merchant, do hereby declare the nature of my invention to be as.
follows:-
My invention relates to the construction of the blocks of hand brakes and
similar brakes for road vehicles and to the immediately adjacent mechanism, the
object being to dispense with the use of leather, wood and the like, which are
commonly used for the frictional surface, and to improve the adjacent parts.
thereof.
I propose to construct the brake block on the plan which I prefer, as follows:
The hand lever or other like means by which the block is forced against the
wheel may be of any suitable construction and to this I fix a bracket provided.
with two lugs and a cross pin or axis.
Upon this axis and between the lugs I secure a somewhat similar bracket to
which the friction block is attached, and upon the inner face of this bracket I
support two springs preferably of indiarubber which bear against the opposite
face of the first named bracket, one on each side of the axis which tend to bring
the bracket (and brake block) to its normal central position. The brake block or
friction block is made of metal curved to the desired radius and having a number
of holes or recesses which are filled with lead or other material of a different nature.
to the body.
It is provided with a ready means of securing it to the bracket, so that at any ;
time it may be removed and replaced by another, or so that if worn at one end it
can be readily reversed.
A cheaper and more simple form consists in using my improved friction block
affixed to a wood block which is attached to the brake lever, in which case I secure.
to the wood block an iron or steel plate provided with holes or slots for the ready
attachment or removal of the friction block.
Dated the 17th day of March 1906
I, WALTER HAWLEY No. 5, The Green, Penistone in the County of York,.
Timber Merchant do hereby declare the nature of this invention and in what
manner the same has to be performed, to be particularly described and ascertained in
and by the following statement :-
My invention relates to the construction of the block portion of hand brakes
and similar brakes for road vehicles, and to the immediately adjacent mechanism,

page_text: with the object of dispensing with the use of leather, wood and the like which are
commonly used for the frictional surface which comes in contact with the wheel,
and of improving the adjacent parts.
The annexed sheet of drawings will clearly illustrate my invention.
Fig. 1, shows the face and edge of the brake block.
Fig. 2, side view of adjusting bracket.
Fig. 3, back of same.
Fig. 4, complete brake.
In carrying my invention into practice in the form I have illustrated, I construct
a bracket A, as shown in Fig. 2, consisting of a back plate B, provided with
holes B', by which it can be secured to the brake lever C, Fig. 4 and with two side
lugs B2, and a cross pin D. I also construct a somewhat similar bracket E,
provided with a central lug E', to fit between the lugs B, and to form a hinge joint
therewith, also two side extensions E2, with central openings to hold two springs
preferably of rubber, marked F, as they are not so liable to hold dirt and become
clogged as spiral springs. These springs tend to hold the bracket E, in its normal
position but allow the brake block to adjust itself to the face of the wheel.
Upon the face of the bracket E, which I prefer to curve as shown I secure the
brake block G, by screws H, or equivalents as shown in Fig. 2, so that it
can at any time be readily replaced by another, or reversed if one end becomes
worn.
The block is made of metal curved to the desired radius, and is provided with a
number of perforations or recesses G2 of any desired shape but preferably round,
these are filled with lead or other suitable alloy of an impeding or clogging
nature.
Where a more simple and less expensive form of brake is desired, I dispense
with the adjusting bracket and affix my improved brake block G to a wood block
secured to the brake lever, using an intermediate plate of metal or facing which is
permanently secured to the wood, provided with slots, screw holes or like ready
means by which the metal brake block may be readily secured and removed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
clain, is:
1. A brake for vehicles consisting of two brackets, or a back plate and a front
plate pin jointed together, provided with interposed springs for adjustment and a
detachable brake block of metal having holes or recesses filled with lead or similar
clogging material, as herein before described and shown.
2. In a brake for vehicles, a bracket A, consisting of two plates pinjointed
together and having interposed springs for the purpose of self adjustment, as
hereinbefore described and shown.
3. A brake block for vehicles consisting of a metal block perforated or recessed
upon its face, and such perforation, or recesses filled with lead or other clogging
material, as herein before described and shown.
h dox of December 1896.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.