Improvements in and in connection with Brake-blocks for Road Vehicles.
Year: 1899

page_text: Date of Application, 13th Oct., 1899
Complete Specification Left, 13th July, 1900-Accepted, 1st Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in and in connection with Brake-blocks for Road
Vehicles.
I, FREDERICK RICHARD CHURCH JOYCE, of Park View, Farnborough, in the
County of Hampshire, Coach Builder, do hereby declare the nature of this inven-
tion to be as follows:-
My invention relates to improvements in the construction of adjustable brake-
blocks for, and the manner of fixing the same upon road vehicles generally,
and has for its object simplicity in its construction and adjustment, and to
provide means whereby the said block may be quickly fixed in position and
removed therefrom to effect a change of its position to accommodate wear, or to
substitute a new for a worn out block..
In carrying my invention into effect I construct the said block of metal, wood,
rubber, vulcanite or other suitable material or combination of materials, and
provide upon or within the back or upper surface of same a longitudinal groove or
recess, into which I place the head or heads of a bolt or bolts, adapted to fit and
slide therein, the said bolt or bolts being then used for fixing the said block in
position upon the brake arm of the vehicle by the means of a nut or nuts.
The said groove or recess in the said block may be of any desired formation in
cross section, the side walls or bottom or both of which may have rectangular, V,
or other shaped grooves or threads formed therein, faced or otherwise, with which
may engage like shaped protuberances or threads formed upon the corresponding
faces of the head of the said bolt, which provides that the said bolt-head may be
slid or screwed into the groove or recess in the block and occupy any desired
part thereof.
D: 1911 1.
上 0
11000
Improvements in and in connection with Brake-blocks for Road
Vehicles.
I, FREDERICK RICHARD CHURCH JOYCE, of Park View, Farnborough, in the
County of Hampshire. Coach Builder, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-

page_text: blocks for, and the manner of fixing the same upon, road vehicles generally,
and has for its object, simplicity in its construction and adjustment, and to
provide means whereby the said block may be quickly fixed in position and
removed therefrom to effect a change of its position to accommodate wear, or to
substitute a new for a worn out block.
In order that my said improvement and the manner in which I purpose employ-
ing them in connection with brake-blocks may be fully understood, I have
appended a sheet of drawings of which,
Fig. 1 is a perspective view of a brake-block arranged in accordance with one
form of my invention.
Fig. 2 is an elevation of the bolt adapted for use with Fig. 1 in the manner
illustrated by Fig. 3, and hereinafter explained.
Fig. 4 is a side elevation of a block like unto Fig. but with an alternative
form of construction, Fig. 5 being a section of such a block illustrating the form
of threaded bolt employed, and its place therein.
Fig. 6 is a section of a block in which the metallic threaded or parallel surfaces
for the reception of the bolt are attached thereto.
In carrying my invention into effect I construct a brake block such as A of
metal, wood, hard-rubber or vulcanite or other suitable material, or combination
of materials adapted for the purpose, the wearing face of the said block being for
preference concave longitudinally at B, and either plain or parallel laterally at C
when intended for use with ordinary metal tyred wheels, but when intended for
use upon pneumatic or solid rubber tyred wheels the said face at C may be concave
as indicated by dotted curve at C Fig. 1.
The said block A when wholly of metal or upon its back or upper portion 1),
is provided, centrally of its width or thereabouts with a longitudinal through
or partly through groove or recess E, of any desired shape in cross section, the side
walls or bottom or both of which is or are provided with parallel, V. square, or
other shaped grooves F, (Fig. 1) into which may take like shaped ridges, pro-
tuberances, projections or threads G upon either or each side of the head H of
threaded bolts J (Fig. 2) when the heads of two or more of such bolts are slid into
the groove or recess E, as shewn in Fig. 3, the said threads and grooves serving
to hold the said bolts in position in any part of the length of the said groove, so
that the opposite and threaded ends of the bolts may engage with corresponding
holes in the brake-arm of the vehicle, and be therein retained by a nut or nuts
screwed upon each bolt, the tightening of which said nut or nuts would serve to
fix the block A in close and tight connection with the brake-arm, and the heads H
in tight connection with the groove or recess E, and, if necessary, the space
between the heads H, and between these and the ends of the recess or groove E
may be filled up with blocks or plugs of wood or other suitable material, to
prevent displacement of the bolts in E longitudinally, should the said nut or nuts
become loose.
As an alternative arrangement, I may form the said grooves F other than parallel
with the face D of the block, as at Fig. 1 or in other words, after the manner
of a screw thread, as shewn at F in Fig. 4, in which case the bolts J may be
threaded at each end, or for the whole of its length, so that the said bolts may be
screwed into any part of the length of the block, and be therein retained by
reason of such screwing, with or without the use of intervening wood or other
blocks or plugs.
In the manufacture of blocks such as A of rubber, vulcanite, wood, or other
material, or combination of materials, other than metal, I prefer to provide the
grooved or threaded portion For F¹ of metal, in order that it may have a better
hold upon the bolt J, in which case 1 may face the said grooves For F with
metal, or insert linings of metal K (Fig. 6) in which the grooves For Fare
formed, in order that the bolts D may take thereinto in like manner as at Figs. 3
and 5.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1st. The improved brake-block for vehicles, in which a longitudinal groove
is formed, the side walls, and may be the bottom of which is provided with
parallel or threaded grooves or recesses for the reception of threads or protuber-
ances formed upon bolts adapted to engage with, and be slid or screwed and held
therein, the said bolts also serving for engaging with and fixing the said block
upon the brake arm of the vehicle substantially as herein described and shewn.
2nd. The herein described method of and means for attaching bolts to brake
blocks, and the said blocks to the brake arms of vehicles, substantially as set
forth.
3rd. The construction and use of brake-blocks such as A of metal, having a
groove E, or of other material or combination of materials having such a groove
lined with metal K, the said groove or lining having parallel or threaded
grooves For F upon the side walls or bottom or both of same for the reception
of a bolt such as J, in the manner illustrated by Figs. 3 or 5, substantially as
and for the purposes herein described and shewn.
Dated this 13th day of July 1900
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, London, E.C.
Agent for the Applicant.