Improvements in and in connection with Suspension Springs.
Year: 1890

page_text: Date of Application, 15th Nov., 1890
Complete Specification Left, 15th Aug., 1891-Accepted, 3rd Oct.. 1891
PROVISIONAL SPECIFICATION.
Improvements in and in connection with Suspension Springs.
I, ROBERT CUTHBERT of 3 Cobden Terrace Eastfield Road Peterboro Coach
Trimmer do hereby declare the nature of this invention to be as follows:-
The object of my invention is to construct suspension springs for use on bath
chairs, carriages, lounges, bedsteads or other like articles, for the prevention of
vibration.
With this object I manufacture my springs or suspenders of india rubber or other
flexible material and of any required size, thickness and strength in accordance with
the weight to be suspended & the flexibility desired. Each spring or suspender is
formed of either one or more bands or rings of the before mentioned material, such
rings being passed over, or attached by any suitable method to hooks, knobs, or
other suitable fasteners in any convenient positions on the body and under carriage
of the vehicle or other article on which they are used.
Any number of springs or suspenders may be used and in any positions required
in accordance with the weight to be supported and the flexibility desired.
Dated this 15th day of November 1890.
GRAHAM & GRAHAM,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in and in connection with Suspension Springs.
I, ROBERT CUTHBERT of 3 Cobden Terrace, Eastfield Road, Peterborough
Coach Trimmer, 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 my invention is to manufacture suspension springs of india rubber,
for use on all descriptions of bath chairs, childrens carriages, and any kind of seat
or lounge where immunity from vibration is desirable.
With this object I manufacture my suspension springs of solid india rubber, in
the form of rings or bands of any size, length and thickness required in proportion
to the weight to be carried or supported.
The springs or suspenders are attached to the body and framework of the vehicle
by bolts, or any other suitable method or means, and any number of springs or
suspenders may be used, as found most convenient in proportion to the weight to be
supported and the flexibility required.
In the accompanying drawings,
Fig. 1. shews the full length and width of the spring or suspender and
Fig. 2. a side view, showing its construction in which A is the solid rubber
forming the spring B. B. the holes for the reception of the bolts or other fastenings
and C. C. two pieces of brass tube for the prevention of wear.
Fig. 3. shews an elevation of a carriagette the body of which is suspended by the
rubber bands or rings D. D. attached in the manner described to the body E by
the fasteners F. F. through which pass two bolts and to the frame H. H. at I. I.
Fig. 4. shews an end view of the carriage with frame and springs attached.
J represents an iron rod, the ends of which pass through the frame H. H. at I. I.
and upon which one end of the springs are fastened, see K. K. L shews the bottom

page_text: of body M. M. the position of the axles, and N. N. two pieces of chain which
prevents the body being overturned.
Fig. 5. shews about full size of the iron rod mentioned in the last figure O. O. the
edge of two iron clips which are adjusted with the springs, and P. P. two nuts to
secure both.
Fig. 6. shews full size of the fastener F which is secured to the body by two
screws or bolts, and into which the other end of the spring is fastened by means
of bolts.
Fig. 7. shews full size of iron clips which prevents the springs getting out of
proper position.
Fig. 8. shews the bolt required to attach the pieces of chain to.
By the use of my invention any body or seat, suspended by my springs, is kept
very free from jolting and vibration from the main frame or under carriage, the
vibration being absorbed by the rubber springs or suspenders, no part of the body
or seat being in metallic communication with the frame.
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 :-
:-
1. The use of rubber suspension springs for the prevention of vibration in all
kinds of childrens carriages, scats or lounges.
2. The construction of such rubber springs or suspenders in the form herein fully
described, set forth and illustrated.
Dated this 14th day of August 1891.
ROBERT CUTHBERT.