Roper Brush Bra
Year: 1896

page_text: Date of Application, 14th Dec., 1896
Complete Specification Left, 14th Sept., 1897-Accepted, 20th Nov., 1897
ARTHUR CHARLES ROHER F.R.C.S. Ed. of The Shrubbery, Exeter, Devon, a
Surgeon and FREDERIC ALGAR of Waterbeer Street Exeter Ironmonger do
hereby declare the nature of this invention to be as follows:-
An improvement in The Roper Brush Brake Patent No. 22203, 1892 by which
the action of the brake on the centre or "tread" of, the tyre is avoided. The
brake to consist of twa brushes of biconcave or plane surface so fashioned that they
apply when in operation to the lateral surfaces of the tyre. They will be adapted
in any convenient way for use on the front or hind wheel. The Brushes to be
inserted into shoes as in the pressure-brake or otherwise conveniently attached to
the braking apparatus & they may be connected by a narrow brush or other
apparatus for cleaning the tyre of mud or bodies likely to cause puncture. The
Brushes may be made of any suitable material such as bristle India rubber or
wire which may or may not be interlined with strips of India rubber arranged
longitudinally, transversely or diagonally, to suit the various patterns of tyres.
Dated this 13th day of December 1896..
ARTHUR C. ROPER.
FREDERIC ALGAR.
We, ARTHUR CHARLES ROPER F.R.C.S. Ed., of the Shrubbery, Exeter, in the
County of Devon Surgeon and FREDERIC ALGAR of Waterbeer Street in the Town
and County aforesaid, Ironmonger, 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 an improved brush brake for vehicles particularly
for use with pneumatic tyred wheels and is an improvement on the brake
covered by British Patent No. 22203 of 1892. It consists essentially in form-
ing the brush or retarding portion of the brake in two parts so shaped as to avoid
any action on the centre or tread of the tyre when in operation.
We will now more particularly describe our invention making reference to the
accompanying drawing in which
Figure 1 is a view in side elevation of the brush brake as constructed for use
on a velocipede in place of the ordinary spoon brake.
Figure 2 is a view in plan, thereof.
Figure 3 is a view in end elevation thereof, and

page_text: Figure 4 is a transverse section on line a x of Figure 2.
Throughout the views similar parts are marked with like letters of reference.
The two brushes A, A', which are made of any suitable material such as bristle,
India rubber or wire, which may or may not be interlined with strips of India
rubber arranged longitudinally, transversely or diagonally to suit the various
patterns of tyres, are adapted to be inserted and held within suitably shaped
shoes B, B', which are connected together by a bridge piece C into which the
ordinary brake rod X is fixed.
The distance apart at which the shoes B B are connected together and also
the shape or concavity of the operating surfaces of the brushes will depend to a
certain extent on the size and shape of the tyre with which it is to be used but
the distance apart and shape of the brushes is of little moment so long as the
centre or tread portion of the tyre is not acted upon when the brake is in
operation.
A convenient method of fitting the brushes A, A', in the shoes B, B', is to form
the shoes with solid fronts b, b, against which the front ends of the backing of
the brushes abut on being pushed in from the rear of the shoes, they may then be
prevented from being accidentally withdrawn by means of screws b₁₁.
For the purpose of cleaning the centre or tread of the tyre of mud or for re-
moving small stones, thorns or similar bodies which are liable to puncture or
injure the tyre, the brushes A, A', may be connected together by means of a
narrow brush or an equivalent device of such a construction as to be incapable
of producing any appreciable braking effect.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The improved brush brake for vehicles substantially as herein before described
and illustrated by the accompanying drawing.
Dated this 14th day of September 1897.
ROBERT E. PHILLIPS Assoc. M. Inst. C.E., M.I.Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.