Improved Springs for Perambulators, Bath Chairs, and other similar Vehicles.
Year: 1887

page_text: Date of Application, 21st May, 1887
Complete Left, 21st Feb., 1888
Complete Accepted, 23rd Mar., 1888
PROVISIONAL SPECIFICATION.
Improved Springs for Perambulators, Bath Chairs, and other
similar Vehicles.
I HERBERT JOHN LIGHTBOURN of 13 Pryme Street Hulme Manchester in the
County of Lancaster Blacksmith do hereby declare the nature of this invention to be
as follows:-
My invention relates to that class of springs for perambulators Bath chairs and
other similar vehicles which consist of two bent plates of steel rivetted together
at or near one end and connected together, and the object of my invention is to give
increased elasticity to such springs to diminish shocks and to render the motion
of the body of the vehicle much easier.
The invention consists in rivetting to the upper curved or bent plate of the spring
two screw bolts, and placing on each of these bolts an auxiliary coiled spring
(preferably of a barrel form and very little larger than the bolt at top and bottom)
these auxiliary springs rest upon the upper plate of the spring and support the floor
of the perambulator or vehicle which is held firmly thereto by screwing nuts upon the
upper ends of the bolts which project upwards through the floor of the vehicle.
The strength of the auxiliary springs may be increased or diminished by screwing
or unscrewing these nuts.
"
Dat this 20th 1...
L
1007
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improved Springs for Perambulators, Bath Chairs, and other
similar Vehicles.
I HERBERT JOHN LIGHTBOURN of 13 Pryme Street Hulme Manchester in the
County of Lancaster Blacksmith 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 :-
My invention relates to that class of springs for perambulators Bath chairs and
other similar vehicles which consist of two bent plates of steel rivetted together
at or near one end and connected together, and the object of my invention is to give
increased elasticity to such springs to diminish shocks and to render the motion
of the body of the vehicle much easier.
The nature of my invention, and the manner in which the same is to be performed
or carried into practical effect will be readily understood on reference to the annexed
sheet of drawings and the following explanation thereof.
Fig. 1 on the drawings represents a perambulator or Bath Chair spring made
according to my invention.
The invention consists principally in rivetting to the upper curved or bent plate a
of the spring two screw bolts b, b and placing on each of these bolts an auxiliary
coiled spring c, c (preferably of a barrel form and very little larger than the bolt at
top and bottom) these auxiliary springs c, c rest upon the upper plate a, a of the
spring, and support the floor d, d of the perambulator or vehicle which is held firmly
thereto by screwing nuts e, e upon the upper ends of the bolts b, b which project
upwards through the floor d, d of the vehicle.
The strength of the auxiliary springs b, b may be increased or diminished by
screwing or unscrewing the nuts e, e.
Fig. 2 on the drawings shows a modification of the above, in which the upper
plate a, a of the spring is rivetted to the lower plate f, f of the same at the centre,
and the auxiliary coiled springs c, c are placed between the plates a and fas
shown.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In springs of the class hereinbefore mentioned the combination therewith of the
auxiliary coiled springs c, c placed either between the upper plate of the spring
and the floor of the vehicle, or between the upper and lower plates of the spring as
shown on the accompanying drawings, and hereinbefore particularly described.
Dated this 26th day of Fahr 1000
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.