Improvements in Slipper Brakes and Slip Hooks for Road Vehicles.
Year: 1894

page_text: Date of Application, 12th Oct., 1894
Complete Specification Left, 12th July, 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in Slipper Brakes and Slip Hooks for Road Vehicles.
CHARLES HENRY BENNETT 5 Sleaford Street, Attercliffe, Sheffield in the
County of York, Engineer, do hereby declare the nature of this invention to be
as follows:-
:-
This improvement in brake shoes has for its object to supply a shoe or slipper
with false bottom 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 a more economical & efficient manner, and so that it may
be run out at wheel more easily by the improved slip hook, thus avoiding less risk
of a block in the traffic as with hook shown in my Patent No. 14,538, dated
October 10th '88.
The improved slip hook is a safety hook and suitable for all purposes where
a slip hook is required and is similar to my patent hook No. 16,792 dated
November 19th 1888. The inside part of the hook is in two separate parts and
works in a joint near the bottom. On the outside of the hook there is a spring and
a pin near the bottom which fits in a suitable recess made for it in the inside of
the hook, the handle part of inside hook has to be moved forward as it works in
the joint and presses the spring and pin out of recess of inner part releasing same
and allowing load to be slipped out of hook, thus preventing chain slipping out of
hook through jolts or other mishaps.
Now in carrying out my invention I construct the shoe or top part of cast steel
with a wrought iron or steel lug fitted into a dove tail and a rivet at the side of
the shoe, I let the raised part of the dove tail of shoe or top part be in the centre.
And I have a clearance or space at the bottom and each end of dove tail so that
they are fitted in false bottom without chipping or machining or I press the shoe
or top part out of wrought iron or steel plate with lug out of one piece of plate.
The false bottom I make of cast iron and fill in the bottom part with scrap steel
or punchings thus making it as durable as a steel slipper and at little over half cost
of a common metal slipper, the raised part of dove tail in the false bottom is at
the sides and a clearance at the ends and bottoms as in shoe. I provide suitable
taper stops to prevent bottom working out of the shoe, at the top of false bottom
I have a steel plate burnt on with prongs so that the metal runs round it and
makes it as one with the bottom, this is to prevent slipper from tripping before the
wheel.
Another improvement of the Invincible is that the slipper may be put under the
wheel and released by driver of vehicle without leaving his seat, this is done by
pulling lever or turning wheel.
Dated this 10th day of October 1894.

page_text: Improvements in Slipper Brakes and Slip Hooks for Road Vehicles.
I CHARLES HENRY BENNETT, 5 Sleaford Street, Attercliffe, Sheffield, in the
County of York, 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 improvement in brake shoes has for its object to supply a shoe or slipper
with false bottom for the purpose of preventing the revolution of a wheel, of van
dray bus or the like and at the same time to protect tyre of such wheel when
descending an incline in a more economical and efficient manner so that it may
be run out more easily by the improved slip hook and improvements, whereby
driver of vehicle may put slipper under the wheel release and hang up same by
simply pulling of lever without leaving his seat.
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.
Sheet 1 Fig. 1 is shewing complete slipper with lug dovetailed, or solid cast
in with slipper.
Sheet 1 Fig. 2 is a view of shoe or top part of slipper shewing improvement of
clearance of dovetail A. B is a hole to receive improved stop for preventing false
bottom working out of shoe.
Sheet 1 Fig. 3, is a view of false bottom with improved dovetail and shewing
toe plate C. which is made of sheet steel cast in or burnt on toe part of false
bottom, and which prevents slipper tripping before the wheel.
Sheet 1 Fig. 4. is a view of improved slip hook, A is the handle part of hook
which works on pin E, which, when pulled forward presses catch C out of slot H.
and allowing hook B to revolve round the pin G thereby releasing the load that
is put in the hook B. F is a coil or other suitable spring for pressing the catch C
outward D is a pin which prevents catch C from coming too far outward.
Sheet 1 Fig. 5. is the false bottom, B is a recess to allow for opening of split
rivet or pin C is toe plate, D is punchings or scrap iron which are cast in or burnt
in with the bottom thus making them as durable as a steel slipper.
Fig. 6, on Sheet 2 is improvement whereby driver of bus, dray, or the like may
put the slipper under the wheel, release & hang up same by simply turning wheel
or pulling lever, without handling slipper or leaving his seat, A is the slipper,
B is a modification of A, having lugs at each side of slipper, thus allowing the
line of pull to be in the centre; arm on slipping arrangement C. moves chain out
of track of wheel, D is a grooved pulley that chain P works on for lifting lever F
horizontally, and allowing catch' S to move downwards, thus liberating notch on
chain and allowing wheel to run through the slipper.
The slipper chain Q works on grooved pulley R, on the front of catch S and
round spindle T. The friction wheel H when pressed on the revolving wheel M,
revolves the spindle T and winds the slipper chain Q round it until the slipper is
sufficiently raised from the ground. The notch on chain Q is so arranged that it
causes arm on slipping arrangement C, to move outward, and friction wheel H is
pulled off the wheel M by lever on E and G, causing catch L to slip into recess
on disc K. so that spindle T cannot unwind, until friction wheel H is pulled nearer
wheel M, to allow wheel to run into slipper, the chain being locked at the proper
length.
Sheet 2 Fig. 7 is end view of Figure 6, through line A 1. and B 1. and lettered
as above.
Sheet 2 Fig. 8, is side view of slinning arrangement C.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion 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
specified and as illustrated on the accompanying drawings, because equivalent
modifications or variations can be made in such detail and quite consistent with the
principles or characteristic features of my invention, and in conclusion I declare
what I claim is
First. The construction use and application of a safety slip hook for releasing
slipper brake when under the wheel for a purpose hereinbefore described.
Second. The construction use and application whereby a driver may put on
release, and take up slipper brake without leaving his seat.
Third. In the construction use and application of stops and clearance in top of
dovetail and toe plates.
Fourth. In the construction use and application of a cheap and efficient slipper
by using punchings or scraps.
Dated this 11th day of July 1895
C. H. BENNETT.