PROVIDIUNAL DE RUIFICATION Improvements in or connected with Brakes for Road and other Vehicles.
Year: 1897

page_text: Date of Application, 14th Oct., 1897
Complete Specification Left, 14th July, 1898-Accepted, 24th Sept., 1898
PROVIDIUNAL DE RUIFICATION
Improvements in or connected with Brakes for Road and other
Vehicles.
We, ALFRED STEVENS, of 4, Paragon Cottages, Shipwright, and WILLIAM
STEPHEN PENNEY, Junior, Boat Builder, of 11, Cross Street, both of Ramsgate,
in the County of Kent, do hereby declare the nature of this invention to be as
follows;
-
Our invention relates to brakes which are applied to the hub or nave of the
wheel to which they are fitted and also relates to means for operating same.
According to our invention we form a peripheral groove or race around the nave
or hub of the wheel to which our brake is to be applied. In some cases it is not
necessary to employ a longer nave than is now commonly in use but in the manu-
facture of new wheels sufficient length is provided for.
Embracing opposite sides of the aforementioned groove are two members, which
extend below the nave or hub but are pivotted upon a fixed pin, which pin is
carried by a bracket connected to the framework of the vehicle. Such a bracket
may conveniently be clamped to the axle by clamping screws and the latter may be
of sufficient length to allow of the insertion of a packing block between the axle
and bracket whereby the relative position of the fixed pin (which is carried by the
bracket) may be arranged with respect to the axle.
The interior sides of the two members receive segmentally shaped blocks, prefer-
ably of wood, which latter may be secured in position by bolts or other means
the faces of the blocks are of similar curvature to that of the peripheral groove
or race.
Generally, and by way of example, we locate the fixed pin by which the two
brake block carrying members are pivotted together, below the wheel hub, and
the members extend upwards as aforesaid, and being of oppositely curved form,
they embrace between them, but do not touch, the brake track on the hub. Now
at the upper end of each curved member, we knuckle joint an extension piece,
arranged radially from the lower fixed pivot of the brake members, and this
extension piece has a slot in the same radial linė.
It should now be understood that by closing together the slotted extension
pieces, the opposed brake blocks are brought to act upon the brake track of the
wheel hub. In this action the knuckle joints of the extension pieces are arranged
so that they do not turn when the parts are brought into action, the office of the
joints being to allow of the curved members being disconnected at their lower
ends by removing the pin upon which they are pivotted, when the members can
then be turned up on the knuckle joints of the extension pieces, so as to give access
to the segmentally shaped brake blocks, or the groove or race of the hub.
Such a brake is arranged upon the nave of each wheel of a pair, and we provide
a forward bar extending transversely between the wheels, and with its opposite
ends passing through the slots of the two forward brake arms; a similar bar or
frame passes in like manner through the slots of the rear brake arms and these

page_text: two transverse parallel bars or frames are mounted in longitudinal guides on the
vehicle, and are adapted to be brought together in order to apply the brakes,
or to be separated to take the brakes off.
The ends of the transverse bars when they pass into the slots of the extension
pieces of the brake arms are carried in vertically adjustable sliding carriers located
within such slots of the extension arms; the said carriers being adjusted as required
within the slots by means of screws or the like.
The transverse bars may be composed if desired of trussed framework, and are
provided with connections to secure parallel motion, and are morcover connected
by a shaft having right and left hand threads to engage the respective bars, and
according to the direction in which the screwed shaft is revolved so are the bars
brought together or distanced apart and the brakes thereby applied or taken off.
Convenient means should be provided whereby the screwed shaft can be operated
from a place within the reach of the driver or person controlling the vehicle.
In some cases instead of the bars aforesaid extending directly between the
brake arms, we may provide a pair of scissor jointed levers for each brake, and
the scissor levers may be operated to take off and put on the brakes, by the afore-
said screw shaft.
Dated this 11th date of October 1907
COMILELE DIUINICATION.
Improvements in or connected with Brakes for Road and other
Vehicles.
We, ALFRED STEVENS, of 4, Paragon Cottages, Shipwright, and. WILLIAM
STEPHEN PENNEY, Junior, Boat Builder, of 11, Cross Street, both of Ramsgate,
in the County of Kent, 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: ⚫
The object of our invention is to provide improved means whereby brakes can
be applied to the hub or nave of the wheel, to so construct the said brakes that
they may conveniently be fitted to existing vehicles, and to provide means whereby
the brakes can be operated more readily than heretofore.
In order that our invention may be readily understood we will describe same
with reference to the accompanying drawings.
Fig. 1 is a side elevation shewing a brake constructed according to our said
invention, Fig. 2 is a plan view of the brake upon one hub, and operating mechan-
ism, the opposite hub and its similar brake being broken away on the drawing.
Fig. 3 is a section plan on the irregular line X Y of Fig. 1, Fig. 4 is an end
elevation partly in section and Fig. 5 is a plan view shewing a modified con-
struction of operating gear.
According to our invention, and referring more particularly to Figs. 1 to 4
of the drawings, we form a peripheral groove or race A. (Fig. 3), around the nave
or hub B of the wheel, to which our brake is to be applied. In some cases it is
not necessary to employ a longer nave than is now commonly used, but in the
manufacture of new wheels sufficient length is provided for.
Embracing opposite sides of the aforementioned groove A, are two members C C',
composed of arms (generally curved) which extend below the nave of hub B, and
are pivotted upon a fixed pin D, which pin is carried by a bracket E connected to
the framework of the vehicle. Such a bracket may conveniently be clamped

page_text: to the axle B by clamping screws F, and the latter may be of sufficient length to
allow of the insertion of a packing block between the axle and bracket whereby
the relative positions of the fixed pin D (which is carried by the bracket) may be
arranged with respect to the axle B.
The interior sides of the two members C C¹ receive segmentally shaped blocks G,
preferably of wood, which latter may be secured in position by set screws H or
other means, and the faces of the blocks are of similar curvature to that of the
peripheral groove or race A.
Generally, and by way of example, we locate the fixed pin D, by which the two
brake block carrying members C C are pivotted together, below the wheel hub B,
and the members C C¹ extend upwards as aforesaid and being of oppositely curved
form, they embrace between them, but do not touch, the brake track on the hub.
Now at the upper end of each of the curved members C C¹ we provide a knuckle
jointed extension piece I, arranged approximately radially from the lower fixed
pivot pin D of the brake members C C¹, and each of these extension pieces I has a
slot J in the same radial line.
It should now be understood that by closing together the slotted extension
pieces I, the opposed brake blocks G are caused to act upon the brake track A of
the wheel hub B. In this action the knuckle joint I¹ of the extension pieces I,
are arranged so that they do not turn when the parts are brought into action, the
office of the joints being to allow of the curved members C C being disconnected
at their lower ends by removing the pin D upon which they are pivotted, when the
members C C can then be turned up on the knuckle joints pins 12 of the extension
pieces, so as to give access to the segmentally shaped brake blocks G, or the
groove or race A of the hub B.
Such a brake is arranged upon the nave of each wheel of a pair, and we provide
a forward bar K extending transversely between the wheels, and with its opposite
ends passing through the slots J of the two forward brake arms or extension
pieces I, a similar bar or frame K¹ passes in like manner through the slots J of
the rear brake arms I and these two transverse parallel bars or frames are mounted
in longitudinal guides L on the vehicle, and are adapted to be brought together in
order to apply the brakes, or to be separated to take the brakes off.
The ends of the transverse bars when they pass into the slots of the extension
pieces of the brake arms are carried in vertically adjustable sliding carriers M,
located within such slots J of the extension arms I: the said carriers M being
adjusted as required within the slots by means of screws N or the like.
The transverse bars K K¹ may be composed if desired of trussed framework, and
are provided with connections such as those marked O, to secure parallel motion,
and are moreover connected by a shaft P having right and left hand threads to
engage the respective bars K and K', and according to the direction in which the
screwed shaft P is revolved, so are the bars brought together or distances apart
and the brakes thereby applied or taken off. Convenient means such as shafts Q
fitted with universal joints R should be provided whereby the screwed shaft P
can be operated by a hand wheel R' from a place within the reach of the driver or
person controlling the vehicle.
In some cases and as shewn by the plan view Fig. 5 instead of the bars K K¹
extending directly between the brake arms I we may provide a pair of scissor
levers K K³, jointed at S, for each brake, and the scissor levers may be operated
to take off and put on the brakes by the aforesaid screw shaft P and bars K K¹.
The levers K2 K3 may be fitted with joints and pins at S1 S2 whereby parallel
motion is imparted to the extension pieces I of the curved members C C¹.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what
we claim is:-
1. In brakes for road and other vehicles, the application to each hub of a pair
of wheels, of a pair of arms pivotted on a fixed centre, embracing the hub, and

page_text: carrying brake blocks to act against a groove or race on the hub, knuckle jointed
slotted extension pieces to the free ends of the pivotted arms, two parallel horizontal
bars extending in guides across the vehicle, and entering the slots of the exten-
sion pieces, and a rotary shaft having right and left-handed threads, engaging
and connecting the bars, whereby the distance apart of the bars may be varied
and the brakes applied to or removed from the hubs, while the brake blocks can
be removed or replaced by removal of the pivot pin of the arms, substantially as
described.
2. The general arrangement and construction composing our improved brake
mechanism for the hubs of road and other vehicles all combined and acting sub-
stantially as described with reference to Figs. 1 to 4 of the accompanying drawings.
3. The arrangement and construction composing our improved brake mechanism
for the hubs of road and other vehicles combined and acting substantially as
described with reference to Fig. 5 of the accompanying drawings.
BREWER & SON,
London and Leeds, Agents for the Applicants.
BREWER & SON,
London and Leeds, Agents for the Applicants.