Improved Suspension Wheel Tyre.
Year: 1893

page_text: Date of Application, 4th Nov., 1893
Complete Specification Left 4th Aug. 1894-Accented. 27th Oct.. 1894
PROVISIONAL SPECIFICATION.
Improved Suspension Wheel Tyre.
JOHN POLLOCK, Engineer 65 Yarrow Terrace, Crumlin Road Belfast County
Antrim Ireland do hereby declare the nature of this invention to be as follows:-
A tyre for wheels of vehicles of all kinds.
B. is a box shaped tyre or hoop with inside rim left open, C is a box shaped tyre
with outside rim left open & spokes or arms attached inside rim the sides of B are
left narrow so as to fit between the sides of C fitted so as B can work out & in of C,
D forms one of the sides of C left portable for putting in springs, when B, C, & D
are fitted together, they leave a square or rectangular hollow round tyre for
reception of springs that may suite, A is a flat band of steel bent round & fastened
at ends with a shoe or brazed, forming a solid hoop corrugated as shown at A,
which acts as a spring for B to work on.
In putting together put A in B then spring A & B on C fasten D to C with
screws or other means.
Dated this 2nd day of November 1893.
VODI DEIE DIBUITIVATION.
Improved Suspension Wheel Tyre.
I, JOHN POLLOCK, of 65 Yarrow Terrace, Crumlin Road, Belfast, 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 invention relates to an improved suspension tyre for the wheels of cycles
and other vehicles.
And in order that my said invention may be properly understood I have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a section showing, by way of illustration, a tyre and rim suitable for
cycles.
Fig. 2 is a section of a slight modification.
Referring to the drawings: :-
a is a trough shaped metal tyre which fits and works in the trough shaped rim c.
6 is a corrugated spring which is inserted between the tyre a and the rim c, as
shown, and extends preferably right round the wheel. One of the sides d of the
rim is removable for the purpose of allowing the spring b to be inserted in place.
e are screws for securing the side d. are the wheel spokes. g is a rubber tread
cemented or otherwise secured to the tyre a.
If desired the trough shaped rim may be made as shown at Fig. 2, that is with
the side parts overlapping on the inner circumference. The parts are, in this case,
Becured together by bolts or screws as at 1, h¹.
In use, when the wheel is running, the tyre a, which can work freely up and
down in its trough shaped rim c, is resiliently supported or suspended on the
spring 6, and, as a consequence, vibrations and concussions are minimised.

page_text: 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
consider novel and desire to claim is :-
In combination, a trough shaped rim, a trough shaped tyre fitted and working
therein, and a corrugated spring (6) interposed between the rim and the 'tyre,
substantially as herein before described with reference to the drawings annexed.
Dated this 3rd day of August 1894.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.