An Adaptation and Application of Wheels or Rollers with Spring Coil Supports to Two-wheeled Vehicles, drawn by Animals in Single Harness, for the Prevention of Accidents.
Year: 1892

page_text: Date of Application, 7th Nov., 1892
Complete Specification Left, 8th Aug., 1893-Accepted, 4th Nov., 18:3
PROVISIONAL SPECIFICATION.
An Adaptation and Application of Wheels or Rollers with Spring
Coil Supports to Two-wheeled Vehicles, drawn by Animals in
Single Harness, for the Prevention of Accidents.
JOHN CORNELIUS CRAIGIE HALKETT of Cramond, Midlothian-Address
Lieut.-Col. Craigie Halkett Junior Carlton Club Pall Mall London S.W.
I, JOHN CORNELIUS CRAIGIE HALKETT, do hereby declare the nature of this
invention to be as follows
In this invention, wheels or rollers are to be attached to the vehicle in front of
the ordinary wheels and near the level of the roadway, in such a way that in the
event of the animal drawing the vehicle falling, the rollers or wheels may reach
and revolve on the ground. By the support thus given and rendered gradual by
spiral spring and revolution collectively (or if preferred without spiral spring), the
animal will be enabled to regain its footing, and the chances of accident to those in
the vehicle will be reduced to a minimum.
Dated this Fifth day of November 1892:
J. C. CRAIGIE HALKETT,
COMPLETE SPECIFICATION.
An Adaptation and Application of Wheels or Rollers with Spring
Coil Supports to Two-wheeled Vehicles, drawn by Animals in
Single Harness, for the Prevention of Accidents.
I, JOHN CORNELIUS CRAIGIE HALKETT of Cramond, N.B., Junior Carlton
Club, Pall Mall, S.W. Honorary Lieut.-Colonel, formerly in H.M. Service 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:
In this invention I attach wheels or rollers to the vehicle, in advance of the
ordinary wheels, and so fixed near the level of the roadway, in such a way that in
the event of the animal, drawing the vehicle, stumbling or falling, the rollers or
wheels may reach and revolve on the ground. I make use of the existing step-iron,
fastening my wheels or rollers in any simple manner, so that the wheels or rollers
shall remain in the same line as the wheels of the vehicle. For preference, I like
three perpendicular stalks of iron or steel, the two outer stalks keeping the frame
containing wheel in line and the centre stalk.holding the spring coil or other buffer-
at lower end of each centre stalk, the wheel or roller is placed in framework, thus
rendering the support gradual and not jarring in any way. By the support thus
given and rendered gradual by spiral spring or other generally employed buffer, the
animal will be enabled to regain his footing and the accident to those in vehicle, as
also to driver, reduced to a minimum. I place the lower outside circle of wheels or
rollers sufficiently near roadway level, as simply to avert the striking against
stones, and yet to be close enough to give animal the required aid as soon as
possible. The spiral spring or buffer to be sufficiently strong to sustain or reduce
the pressure coming on it from above; and thus in rebounding, to aid in giving
animal his or her fresh footing.
On sketch herewith, A A. are the two rods which retain rollers or wheels in the
same line as the ordinary wheels of vehicle. B. B is the stalk or rod, carrying
spring coil, and attached to centre of frame of roller. C. is the wheel or roller:
and D is the spring-coil preferred to be employed. The heads of A. A. and of B
01

page_text: slide or rise above step-iron or (probably in case of Hansom cabs) presently used
gravel-iron, upon pressure occurring by animal falling or stumbling badly, and
wheels or rollers coming consequently in contact with ground. The rods A. A
and B. are so fitted as to pass through the step or gravel-iron in their respective
positions. I claim the adaptation or application of wheels or rollers as described,
in pairs, in combination with the support and aid of spiral spring coil as described
and shewn, and for the purposes set forth.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
The providing by means here described, an immediate aid to an animal in single
harness to recover himself on stumbling or falling--the spiral spring or buffer
rendering a gradual force to the action of the weight above, and coupled with the
rollers or wheels, assisting materially in raising animal.
London 8th August 1893.
J. CRAIGIE HALKETT.