Improvements in Drag or Slipper Brakes for Road Vehicles.
Year: 1888

page_text: Jate of Application, 10th Oct., 1888
Complete Specification Left, 3rd June, 1889-Accepted, 6th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Drag or Slipper Brakes for Road Vehicles.
I, CHARLES HENRY BENNETT 5 Sleaford Street Attercliffe, Sheffield, in the County
of York Fitter and Turner do hereby declare the nature of this invention to be as
follows:
This invention of Improvements in Brake shoe or slippers has for its object to
supply a shoe or slipper for the purpose of preventing the Revolution of a wheel of.
Van, Dray, Bus and the like and at the same time to protect tyre of such wheels when
descending an incline in an economical and efficient manner so that it may be detached
from under the wheel in a more expeditious manner, to avoid the trouble of backing
the vehicle thus avoiding the risk of a block in the traffic as well as reducing the cost
of repairing such shoes or slippers.
I would here remark that I use the word shoe in its broadest sense, and therefore
do not confine it to the case in which the wheel fits but include the adjacent parts
such as the sole or false bottom and chain by which the said shoe is attached to the
vehicle and although my improvements are simple in appearance I claim that a
marked advance is attained beyond the shoe at present in use for similar purposes.
Usually the shoe or slipper is in one piece of metal attached to the vehicle by means
of a chain and shackle bolted or riveted to a shank which is a prolongation from the
centre of the shoe bottom and such chain attached to shoe or slipper of ordinary
construction are of such a length that when the shoe or slipper is under the wheel the
said chain is at full so that the wheel is prevented from revolving and when it is
required to put the shoe under the wheel it is placed on the ground before the wheel
as is well known and the wheel is drawn on to it and when it is required to take it
from under the wheel the vehicle has to be backed so that the wheel is run out of the
shoe, this is often a difficult operation and sometimes impossible unless extra force is
applied, thus wasting time not only to the owner of such vehicles but also to others by
the block in the traffic owing to his inability to get his vehicle speedily out of
the way.
Now in carrying out my invention I construct a shoe or slipper similar to the
ordinary dray slipper which I make of any suitable material preferably steel but I
make the sides of the said shoe or slipper so that they project beyond the bottom and
each is provided with a groove for the purpose of carrying a sole or false bottom
which I prefer to make of iron. The said sole I make a little tapering from end to end
so that it may be driven tightly in the shoe, but I provide one or more stopps to prevent
it from working to tightly in the shoe on the side or sides or at any other convenient
part 1 fix one or more springs or other equivelent devices to prevent the possibility of it
working out of the shoe.
Instead of attaching the chain to the centre of the shoe as is the case with shoes now
in common use for the purpose here in before mentioned 1 attach it to a lug on one
side of the shoe so that the wheel may pass out at the heel when it is required to
remove the shoe from under the wheel.
The chain or its equivelent that I use for the purpose of attaching the said shoe to
the vehicle I make some what longer than is usual and provide a slip hook or its
equivalent for looping up the chain so that it is as a chain of ordinary construction
while the shoe is under the wheel but the slip hook or its equivelent is so arranged
that the chain or its equivelent can be readily lengthened by this arrangement the evils
of backing out of the shoe are avoided as the vehicle may be drawn on and will run
out at the heel of the shoe and the shoe or slipper may be hooked up in the usual way..
When the shoe is again disired for use the slip hook is placed in the hole or link

page_text: adapted for its reception so that the chain is again shortaned the shoe is then placed
under the wheel in the usual way and the slip hook is unhooked and the wheel allowed
to pass out of the shoe at the heel when it is required to detach it from under the
wheel.
Dated thin 4th Dove of Oataba. 1040
COMPLETE SPECIFICATION.
Improvements in Drag or Slipper Brakes for Road Vehicles.
I, CHARLES HENRY BENNETT, 5, Sleaford Street, Attercliffe, in the borough of
Sheffield, in the county of York, Fitter and Turner, 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 of Improvements in Brake Shoes or Slippers has for its objects, to
supply a Shoe or Slipper for the purpose of preventing the revolving of a wheel of a
Van, Dray, 'Bus or the like vehicles and at the sametime to protect the Tire of such
wheels whilst so locked when descending an incline, in an economical and efficient
manner, and so that it may be detached from under the wheel in a more expeditious
manner and to avoid the trouble of backing the vehicle; thus avoiding the risk of a
block in the traffic, as well as reducing the cost of repairing or replacing such shoes or
slippers, as the false bottom of a shoe made according to my invention may be readily
removed and replaced and is more substantial than similar false bottoms previously
invented for the like purposes, being in my invention prevented by suitable stops,
from working too far through the shoe, that is, out at the toc as is the case with similar
shoes not provided with such stops.
In order that my invention may be clearly understood, I will proceed to describe,
with reference to the accompanying Drawings, the manner in which the same is to be
performed.
Fig. 1 is a side view of a Shoe constructed according to my invention; the connect-
ing chain and device for releasing the shoe not being shown.
Fig. 2 is a plan of the sole or false bottom.
Fig. 3 is a plan of the underside of the shoe, into which the sole or false bottom is to
be slided.
Fig. 4 is a section of Fig. 2 at line E and
Fig. 5 is a section of Fig. 3 at line E¹.
Figs. 6 and 7 are Keys or Stops.
Figs. 8, 9 and 10 show a modification in the mode of connecting the said sole to the
upper part of the shoe.
Figs. 11 and 12 shows the chain for connecting the shoe to the vehicle, arranged
according to my invention, whereby the chain may be readily lengthened and thereby
allow the wheel to revolve and pass out of the shoe at the heel.
In carrying out my invention I construct the upper part of the slipper A fig. 1
similar to the ordinary slipper, but I make the sides of the said slipper so that they
project beyond the bottom, and each is provided with a groove B figs. 3 and 5, for the
purpose of carrying the sole or false bottom fig. 2, which is provided with a dove-
tailed ridge C figs. 2 and 4, which is made a little tapering from heel to toe as shown.
The groove C, figs. 3 and 5, on the bottom of the shoe into which the sole or false
bottom fits, is also tapering from the heel a¹ to the toe a fig. 3. The rabbets on the
said sole bb figs. 4 and 2 (also seen at b fig. 1), formed by the dove-tailed ridge on the
sole, are not continued from end to end of the sole but stop short neer the heel end, form-
ing the dead stops cc fig. 2, (also seen at c fig. 1) against which the heel end (F figs. 1
and 3) of that portion of the sides of the shoe that extend beyond its bottom abut.
In attaching the sole to the shoe, the dove-tailed ridge C, on the sole or false
bottom, is to be placed with its toe in the heel of the groove (fig. 3, in the shoo

page_text: and slided in up to the dead stops c c fig. 2, which prevents it from working out at the
toe of the shoe as is the case with such shoes not provided with any such device; the
taper of the said ridge being necessarily only slight in such shoes is not, in practice, a
safeguard against this evil.
To prevent the possibility of the sole working backwards from the stops c c herein-
before described, so as to become loose, I place one (or more than one if necessary) of
the Keys or Pins figs. 6 and 7 in the hole (or holes as the case may be) d figs. 1, 2
and 3, through the sides of the shoe and the dove-tail ridge of the sole. Instead of
putting the said key or pin in at the side, I may put it in the hole e figs. 2, 3, 8, 9
and 10.
Figs. 6 and 7 are two Keys or Pins for the purpose just described; Figure 7 is a
taper piece of iron or any other suitable material which is to be driven tightly in the
hole as herein before described.
Figure 6 is made of steel or other elastic material. When this form of stop or key is
used I make the hole for its reception in the shape shown in dotted lines at d figs. 9
and 10, so that when the said pin or key is pressed in the hole, it will retain itself by
the expansion of the split end, and either of the said pins or keys may bo removed when
necessary by placing a drift in tho hole at the opposite side of the shoe and taping
it so as to force the pin or key out.
I make both the toe end a and the heel end a¹ fig. 1 tapering. I also rough the toe
end of the sole both on the upper and under side.
Usually the chain for connecting such shoes to the vehicle is attached to the shoe by
means of a shackle bolted to a shank, which is a prolongation of the bottom, as is
well known, in my invention I attach the chain to the lug D figs. 1, 3, 8, 10, 11
and 12.
.
Figs. 8, 9 and 10 shows a modification in the mode of attaching the said solo to the
upper part of the shoe. In this case I make the aforesaid dove-tailed ridge on the
bottom of the upper part of the shoe B₁ figs. 8 and 10, instead of on the sole which
strengthens the shoe, and instead of making the said dove-tailed ridge longitudinally
I make it cross-cornered B' fig. 10. The groove or recess in the sole (in this case) for
the reception of the dove-tailed ridge (on the shoe) is of course cross-cornered also B³
fig. 9. The stop c¹ fig. 10 prevents the shoe from being drawn from the sole. The
keys or pins for preventing any backward movement, (figs. 6 and 7) may be arranged
as hereinbefore described, but I do not confine myself to put them at any particular
part or make them of any particular shape.
My device for releasing the slipper from under the wheel will be readily understood
on refering to figures 11 and 12. Fig. 11 shows the arrangement of the chain
when the slipper is under the the wheel, the dotted line shows the center of wheel. It
will be seen that on releasing the sliphook the connecting chain will be lengthened and
the wheel consequently allowed to revolve and run out at the heel of the shoe, as
shown at fig. 12.
Although I prefer to carry out my invention, for releasing the shoe from under the
wheel, in the manner herein before described and as illustrated, I do not limit myself to
such, as equivalent modifications can be made and quite consistant with my invention.
I am aware that there are shoes or slippers in use for the purposes herein described,
that have a sole or false bottom, the two parts being held together by a dove-tailed ridge
and groove, and I do not lay claim to the adaption of a sole or false bottom to such
shoes or slippers, but I claim that by the adaption of the various stops and keys as
herein described, to such false bottomed slippers and the adaption of the device herein-
before described for releasing the shoe or slipper from under the wheel, which device
is of course equaly applicable to such slippers whether provided with a false bottom or
made in one solid piece, a marked advance is attained beyond Drag or Slipper Brakes
now in use for the like purposes.
Having now particulary described and ascertained the nature of my said
invention, and in what manner the same is to be and can be performed, I here declare
that I do not limit myself to the precise details of my invention as hereinbefore

page_text: specified and as illustrated on the accompanying drawings, because equivalent
modifications or variations can be made in such detail, and quiet consistent with the
principles or characteristic features of my invention; and in conclusion I declare that
what 1 claim is :-
First. The construction use and application of wheel slippers, for the purposes
herein before described, with a false bottom in combination with the stops cc
and 2, substantially as described.
figs. 1
Second. The construction use and application of a wheel slipper, with false bottom
in combination with the stop or key substantially as and for the purpose described with
reference to figures 6 and 7.
Third. In a slipper of the character before described the combination of the stops c c
figs. 1 and 2 with the stop or key figure 6 or 7 substantially as and for the purpose
specified and shown on the accompanying drawings.
Fourth. In a drag or slipper brake for road vehicles attaching the connecting chain to
the side of the slipper substantially as and for the purpose described and shown in the
accompanying drawings.
Fifth. In drag or slipper brake for road vehicles constructing and arranging the
connecting chain in such a manner that it may be readily lengthened or the said
slipper released so as to allow the wheel to run out at heel substantially as and for the
purpose hereinbefore specified and shown on the accompanying drawings.
Dated this 1st day of June 1889.
CHARLES HENRY BENNETT.