Improvements in Spring-supporting Devices for the Bodies of Carts and like Vehicles.
Year: 1889

page_text: Date of Application, 15th Feb., 1889
Complete Specification Left, :5th Nov., 1889-Accepted. 21st Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Spring-supporting Devices for the Bodies of Carts
and like Vehicles.
We RICHARD WILDER, JAMES WILDER and HENRY WILDER all of Wallingford in
the county of Berks, Engineers do hereby declare the nature of this invention to be
as follows:-
Our invention relates to an improved spring arrangement for supporting and
connecting the bodies of carts or like vehicles to the axles or bearings of the same."
We fit a plate to the bed of the cart or vehicle into which we fix a parallel pair of
cylindrical or other shaped guide bars or rods and we fix another plate to the axle or
bearing case between these plates are spiral springs (or a spring) kept in their
places by stud pieces fixed to the top and bottom plates which said stud pieces project
inside the springs and form guides therefor.
We attach a lubricating stuffing box to each end of the bottom plate which said
stuffing boxes are provided with suitable arrangements for tightening the packing.
By these means we provide freedom of motion for the spring to work and allow the
body of the cart or vehicle to rise and fall from the bearings or axle without subjecting
the springs to lateral strain.
Brace irons back and front prevent the guide bars being strained out of position.
1000
COMPLETE SPECIFICATION.
'
Improvements in Spring-supporting Devices for the Bodies of Carts
and like Vehicles.
We RICHARD WILDER, JAMES WILDER, and HENRY WILDER, all of Wallingford,
in the County of Berkshire, Engineers, 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 our invention is to provide an improved spring supporting arrange-
ment or construction for the purpose of connecting the bodies of carts or like vehicles
to the axles or bearings of the same.
Referring to the accompanying Sheet of Drawings and to the Figures and letters
of reference thereon,
Figure 1 is a side elevation of a cart supported according to our improved
arrangement and having the spokes of the wheel broken away to shew the same.
Figure 2 is an enlarged part elevation and part section of our improved arrange-
ment as applied to a light vehicle such as a dog cart.
On the bed plate B supporting the body of the cart A (Figure 1) we fit a plate C
and into this at D D₁ or other convenient points we fix a pair or more if desired, of
parallel guide rods pins or pistons E, E', which also pass through the bed plate of the
cart or vehicle B and are secured in position by shoulders, and head nuts being
screwed to receive the latter.
Above the axle box F and block F" when used we attach a second plate G carrying
lubricating stuffing boxes or sleeves H H' engaging with the guide rods E E' which
work therein.
This lower plate G also carries wooden or other blocks or studs I, I¹ secured
by bolts or otherwise and over these are placed spiral springs J, J, J, abutting
at top and bottom against the plates and G being kept in position by the
blocks T T1 T2

page_text: The sizes and strength of the spiral springs are arranged in proportion to the size
and weight of the cart or vehicle and the load to be carried thereby so that when the
vehicle is empty the body thereof rests on the springs the two plates C and G being
kept apart to the full length of the guide rods E E', the ends of which should then
only project below the plate G sufficiently to allow of the nuts K K being fixed upon
them as shewn in Figure 2.
It will be seen that on a person entering the vehicle or a load being placed
therein the springs will be more or less compressed and the plate C will approach the
plate G the guide rods E E' passing through the stuffing boxes H H³.
The lower plate G and bearings of axle may be further strengthened and attached
to the body by stays or braces L L and if desired a spiral spring and block, or springs
and blocks, may be interposed between the axle and the body of the cart or vehicle at
the centre or other points of the axle between the wheels.
Figure 2 particularly shows the application of our invention to a light cart
or vehicle but the principle is identical and the letters of reference the same as in
Figure 1.
By means of this arrangement we seek to give freedom for the springs to work and
allow the body of the cart or vehicle to rise and fall from the bearings or axle without
subjecting such springs to lateral strain.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that what
we claim is;—
1. In carts and other like vehicles the use of spiral springs supported on blocks
in conjunction with guide rods acting in stuffing boxes attached to the axle or axle
bearings.
2. The general arrangement and construction of spring supported attachments
for connecting the bodies of carts or like vehicles to the axles or axle-bearings
of the same, substantially as described herein and illustrated by accompanying
drawings.
Dated this 15th day of November 1889.
POPPLEWELL, COLTON & Co.,
17 & 18, Southampton Buildings, W.C., Agents for the Applicants.