Improvements in Vehicle Brakes.
Year: 1891

page_text: Date of Application, 2nd Nov., 1891
Complete Specification Left, 2nd Aug., 1892-Accepted, 3rd Sept., 1892
PROVISIONAL. SPECIFICATION.
Improvements in Vehicle Brakes..
We, HILAIRE FANON, and JEAN THERIS, both of 95 Boulevard Beaumarchais,
Paris in the Republic of France, do hereby declare the nature of this invention to
be as follows:-
The object of this invention is to provide a brake-shoe lined with jute or similar
material for carriages or vehicles of all descriptions.
To a plate terminating the brake rod there is secured preferably by means of
two screws with countersunk heads, a box or case having the outline of a brake-
shoe of wood lead or other material of less resistance than the iron felloe of the
wheel, whereby the operation of the brake is made noiseless the disagreeable
66 grinding" sound being avoided. Within the box is secured by the same screws
the brake-block made of jute or the like and provided with a support of wood,
which may if required be covered over with an extra sheet or vencer of wood or
the like.
The jute brake is driven home in the box whose walls surround it to the whole
extent of its depth so that the jute may not be chafed or frayed out through contact
with the iron fittings of the wheel, the material of the box containing the jute
wearing off at the same time as the jute so that the whole thickness or depth of the
brake is made serviceable until it is almost entirely worn out; and whatever stage
the wear may be arrived at, the pressure of the brake on the wheel will always
remain the same, no slipping or sliding being possible as no metal comes in contact
with the iron felloe of the wheel.
The advantages of this arrangement may be summed up as follows:-
(1) Owing to the nature of the material of which the shoe is made slipping or
sliding against the wheel is avoided.
(2) The adhesion between the brake and wheel being increased and the friction.
arising from the sliding of the brake practically avoided, the parts in contact do
not become heated through the friction and also enables the wheel to be instan-
taneously arrested.
(3) The brake may be replaced by any unskilled person all he has to do being
to remove and replace the screws in the ordinary way.
(4) The brake-shoe may be utilized until completely worn out.
In some cases the box instead of being made of wood or of metal which is softer
than iron may be cast or made of steel; in that case however its recess should be
made rather shallow so that the jute projects from it on all sides.
The jute is fastened into a suitable support surrounded by a piece of cloth and
glued within the box the cloth being coated with coal-tar and then with a layer of
varnish or the like, capable of protecting the jute against being frayed out and
keeping it together in a block until entirely worn out.
Dated, this 2nd day of. November 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Vehicle Brakes...»
We, HILAIRE FANON and JEAN THÉRIS, both of 95 Boulevard Beaumarchais,
Paris in the Republic of France, 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 this invention is to provide a brake-shoe lined with jute or similar
material for carriages or vehicles of all descriptions.
The improved brake comprises three parts,-
1. The jute lining.
2. A case of lead or any other material for containing the jute, and
3. The part of the brake to which the shoe is attached..
According to the description of vehicle for which the, jute liued brake-shoe is
intended the shape of the case of lead may be slightly altered so as to readily fit
the brake-shoe carrying part..
.
The accompanying drawings represent, by way of example, the improved
arrangement of the brake-shoe as well as the various shapes which the case
enclosing the jute lining may assume, according to the description of the vehicle to
be provided with the brake."
'
The arrangements suitable for vehicles drawn by horses or cattle are shown in
Figs. 1 to 7.
Fig. 1 is a plan of the brake-shoe fixed to an arm connected with the operating
rod of the brake.
'
Fig. 2 is an inverted plan thereof.
Fig. 3 shows the recess in which the jute lining is fitted.
Fig. 4 is a view of the brake-shoe holder.
Figs. 5, 6, 7 and 8 represent a modification of the method of attachment of the
jute case to the brake-holder to facilitate the fitting of the device.
Figs. 5 and 6 show the two extreme positions which the bolts are capable of
taking up within the grooves formed at the bottom of the case, and
Fig. 7 represents the arm to which the brake-shoe is attached.
The arrangement for vehicles driven by steam or other motive power is illustrated
by the Figs. 8, 9 and 10.
Fig. 8 shows a cast brake-shoe.
Fig. 9 is a side view of the casting or case containing the jute which is fixed to
the brake-holder in the manner shown in Fig. 10.
To a plate a b terminating the brake rod T there is secured preferably by means
of two screws with countersunk heads v va box or case C having the outline of a
brake-shoe, of wood lead or other material of less resistance than the iron felloe of
the wheel, whereby the operation of the brake is made noiseless, the disagreeable
'grinding" sound being avoided. Or the case may be cast. Within the box C is
secured by the same screws on the brake block D made of jute or the like, and
provided with a support of wood bearing against the bottom of C.
66
The jute brake D is driven home in the box d whose walls surround it to the
whole extent of its depth so that the jute may not be chafed or frayed out through
contact with the iron fittings of the wheel, the material of the box containing the
jute wearing off at the same time as the jute, so that the whole thickness or depth
of the brake is made serviceable until it is almost entirely worn out, and whatever
stage the wear may be arrived at, the pressure of the brake on the wheel will
always remain the same, no slipping or sliding being possible, as no metal comes
in contact with the iron felloe of the wheel.
The advantages of this arrangement may be summed up as follows,
1. Owing to the nature of the material of which the shoe is made, slipping or
sliding against the wheel is avoided.

page_text: 2. The adhesion between the brake and wheel being increased and the friction
arising from the sliding of the brake practically avoided, the parts in contact do
not become heated through the friction and also enables the wheel to be instan-
taneously arrested.
3. The brake may be replaced by any unskilled person all he has to do being to
remove and replace the screws vv in the ordinary way.
4. The brake sboe may be utilized until completely worn out.
Where the case is a casting it should be cast with a recess or cavity of limited
depth so that the jute inserted into it protrudes from the edges. The jute pad is
surrounded by a strip of canvas and inserted into the shoe or case.
The case may
moreover be coated with coal-tar and with a layer of varnish for preventing the
jute from getting loose and fraying or wearing away it being by this means held
tightly compressed down to the last fibre. It may happen that the perforations
provided in the brake holding arm do not exactly fit or coincide with the openings
in the bottom of the jute carrying case, and as the necessity of making extra
perforations would involve loss of time, the arrangement represented in Figs. 5, 6
and 7 may be employed instead. Each case is at the bottom provided with two
grooves ce so that the screws E E placed upon the holders A B may at all times,
and whatever the distance at which they are from each other, traverse the case C.
As shown in Fig. 5 these screws hold the case against the brake-holder, being for
this purpose tightened by means of nuts d d¹. Figs. 5 and 6 indicate the extreme
positions which these screw-bolts take up.
When applied to vehicles driven by steam, electricity compressed air or other
motive power the brake-shoe may be slightly modified as shown in Fig. 8 where
the brake-shoe holder is fixed at O to the operating rod. I is a ring for receiving
a pin when the case, as shown in Fig. 9, is placed upon the holder. A case R
containing the jute is fitted to the holder on the outside of the wheel, by means
of dovetailed slides p q and p¹ q'. It moreover carries ou one side a cheek
provided with a groove which when the case is in position, allows the ring I to
project on the outside and to receive the pin or bolt i. This arrangement enables
the case R to be readily replaced whenever the padded brake-shoe is worn out,
it being sufficient to remove the bolt i and to pull out the case adapted to slide
in the grooves p q p¹ whereupon a new case is inserted. As in the preceding
cases the casting containing the jute is hollow, and the jute may be retained therein
by means of bolts or in any other suitable manner.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that what
we claim is,-
-
An improved jute-lined brake-shoe for vehicles of any description, charac-
terized by
(a) A case of lead or other suitable material filled with jute secured in any
suitable manner within it the arrangement being such that the case wears
away at the same time as the jute ;
(b) The special methods of attachment of the case to the arm or bracket
holding the brake-shoe varying with the vehicle substantially as described;
(c) The modification consisting in the employment of a cast case with a cavity
of very limited depth so that the jute protrudes some distance beyond the
edges of the case and is consequently worn out first, substantially as described
and illustrated in the accompanying drawings.
Dated this 2nd day of August 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicant.