Improvements in and relating to Brakes for Vehicles, applicable also for Machinery or other Moving Bodies.
Year: 1895

page_text: Date of Application, 9th Apr., 1895
Complete Specification Left. 9th Jan., 1896-Accepted, 7th Mar.,
1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Brakes for Vehicles, applicable
also for Machinery or other Moving Bodies.
I, THOMAS NEWCOMB, of Addlestone Iron Works, Addlestone, in the County
of Surrey, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved brake for vehicles, machinery and other
moving bodies. As applied to road vehicles it consists essentially of a cone-shaped
disc or drum mounted on one of the wheels, of a divided spring-controlled roller
carried by an axle mounted in suitable bearings adapted to slide on a frame and
capable of being put into frictional contact with the disc or drum carried by the
wheel by means of a suitable lever.
The brake disc or drum may be mounted on the travelling wheel in any
convenient manner, preferably on the nave. The periphery of this brake disc or
drum is cone-shaped. Immediately outside the periphery of this disc or drum is a
box mounted on a suitable support carried by the axle of the vehicle, the said box
being adapted to slide radially with respect to the brake disc or drum. This box
contains an axle on which are mounted the two parts of a divided roller forming
between them a V-shaped groove which is adapted to engage with the V-shaped
periphery of the brake disc or drum, one or both parts of the said roller being
forced inwardly by means of a suitable spring. The box carrying the divided
spring-controlled roller is moved backwards and forwards on the frame carrying
it by means of suitable levers arranged to be conveniently manipulated by the
occupants of the vehicle.
་
When excessive brake pressure is required I mount a strap or its equivalent
round one or both parts of the divided roller capable of exercising a breaking
effect on them and so cause them to rotate at a variable speed with respect to the
speed of the brake disc or drum, thus obtaining an increased breaking effect.
From the aforesaid description the application of my invention to machinery
and other moving bodies will be apparent to any one conversant with this branch
of industry.
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11005
COMPLETE SPECIFICATION.
Improvements in and relating to Brakes for Vehicles, applicable
also for Machinery or other Moving Bodies.
1, THOMAS NEWCOMB, of Addlestone Iron Works, Addlestone, in the County
of Surrey, Engineer, 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 brake for vehicles, machinery and other

page_text: moving bodies, and it consists essentially of a cone-shaped disc or drum mounted
on or attached to the wheel to be braked, of a divided spring-controlled roller
carried by an axle mounted in suitable bearings adapted to slide on a frame and
capable of being put into frictional contact with the disc or drum mounted on or
attached to the wheel to be braked by means of a suitable lever.
In the accompanying drawing which shows my invention as arranged for
application to a road vehicle :—
- Figure 1 Sheet No. 1 is a view in side elevation.
Figure 2 Sheet No. 1 is a view in front elevation-partly in section.
Figure 3 Sheet No. 1 is a view in plan of the underside of the box carrying the
friction gear.
Figure 4 Sheet No. 2 is a view in side elevation of a modified arrangement of
the apparatus.
and
Figure 5 Sheet No. 2 is a view in front elevation thereof-partly in section,
Figure 6 Sheet No. 2 is a view in plan of the underside of the box carrying
the friction gear.
Throughout the views similar parts are marked with like letters of reference.
The brake disc or drum A is preferably mounted on the nave X of the travelling
wheel, but it may be connected therewith in any other convenient manner.
The
periphery of this brake disc or drum A is cone-shaped as shown. Immediately
outside the periphery of the disc or drum A is a box B mounted on a suitable
support C fixed to the axle Y of the vehicle, the said box being adapted to slide
radially with respect to the brake disc or drum A. The box B carries an axle D
on which are mounted the two parts E and E of a divided roller forming between
them a V-shaped groove which is adapted to engage with the. V-shaped periphery
of the brake disc or drum A, the parts E and E' of the said rollers being forced
towards each other by means of a suitable spring F. The box B is moved
backwards and forwards on the support C carrying, it by means of a lever G
arranged to be conveniently manipulated by the occupants of the vehicle, and
adapted to act on the box B by means of an arm or cam g as shown by Figure 1.
When excessive brake pressure is required I mount a strap H or its equivalent
round one or both parts of the divided roller capable of exercising a braking
effect on one or both of them and so cause them to rotate at a variable speed with
respect to the speed of the brake disc or drum, thus obtaining an increased braking
effect.
In the modification shown by Figures 4, 5 and 6 Sheet No. 2 the box B is
pivotted to the support Cat the point c, so that it rocks instead of slides thereon,
a portion D' of the axle D being enlarged or extended to obtain a greater bearing
surface. Instead of using a band H to obtain extra frictional contact a shaped
washer H-preferably of leather is used acted upon by a spring J enclosed in a
socket on the box B and closed by an adjustable cap 61 which provides for
varying the pressure of the spring J.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
(1) The herein before described combination of parts forming my improved brake
for vehicles and other moving bodies.
(2) A brake consisting essentially of a disc formed on or attached to the
wheel or body to be braked, of a divided or double cone friction roller adapted to
run in. contact with the coned disc, one or both parts of the said coned or divided
roller being controlled by a spring to keep them up, to the coned disc, of a box
carrying the axle of the said divided roller the said box being adapted to slide or
rock on a suitable support and to be operated to bring the divided roller into
contact with the coned disc by means of suitable levers, as and for the purpose set
forth.

page_text: (3) The combination with the parts forming my improved brake as described
and claimed in the preceding claim, of a friction device such as H for creating
friction between the divided roller and the box in which it is carried, as and for
the purpose set forth.
Dated this 0th dor of Ta 1806
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 Applicant.