Improvements in Saddle Springs for Bicycles and Tricycles.
Year: 1886

page_text: Date of Application, 16th Apr., 1886.
Complete Left, 15th Jan., 1887.
Complete Accepted, 15th Feb., 1887
PROVISIONAL SPECIFICATION.
Improvements in Saddle Springs for Bicycles and Tricycles.
I, THOMAS MARSHALL LOWCOCK of Slavonia Works Sheffield in the County of
York Manufacturer do hereby declare the nature of my said invention for IMPROVE-
MENTS IN SADDLE SPRINGS FOR BICYCLES AND TRICYCLES to be as follows :-
My invention relates to the construction of an adjustable saddle support for Bicycles
and Tricycles, which although composed of a number of parts is technically called a
spring, and the object of the invention is to permit of the ready adjustment of the
strength or elasticity of the said spring to suit the requirement of the rider.
It consists of a double bow spring or springs attached to the backbone of a bicycle
(for example) by means of a clip. The springs stand above the backbone and bend
over towards the head. To the end of each bow spring I attach a spiral spring, and
these are attached to a cross head through the centre of which is a screwed hole to
receive one end of a right and left hand screw provided with means for turning it
round.
The other end of the screw fits into a screw threaded hole in a flat shackle bar,
which is finally secured by a joint pin to the head of the backbone.
It will be evident that by turning the screw the sustaining power of the "Spring"
may be increased or decreased at will.
I do not bind myself to the use of two springs as described.
ROBT. F. DRURY,
Agent for the Applicant.

page_text: I, THOMAS MARSHALL LOWCOCK of Slavonia Works, Sheffield, in the County of
York Manufacturer 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 the construction of an adjustable saddle spring or support
for Bicycles and Tricycles, the term spring including the component parts of the
support, and the object of the invention is to permit of the ready adjustment of
the strength or amount of elasticity of the said spring to suit the requirement of the
rider.
The annexed sheet of drawings illustrate a spring or spring support made according
to my invention, and the manner of attaching it to the bicycle.
Fig. 1, is a side elevation of the spring in position upon a Bicycle.
Fig. 2, is a plan of the spring.
Fig. 3, underside of the supporting link.
My invention consists of a single bow spring (by preference,) attached to the
backbone of a Bicycle (for example) by means of a clip, but two single springs may
be substituted if desired. A is the bow spring, B is the backbone, C is the clip.
The bow spring stands above the backbone, and curves slightly towards the head D,
and to each end of the bowspring I secure a spiral spring E, their opposite ends
being attached to a crosshead F, through the centre of which is a hole to receive the
neck of the adjusting screw G.
The threaded end of the screw G, engages with a correspondingly tapped hole in
the end of the shackle H, and the opposite ends of the said shackle are formed into
eyes, and are secured to the head D, by a bolt or pin passed through all the three
parts.
When the spring is therefore fixed in the position shown in Fig. 1, and the screw G
is turned round it either increases or decreases the tension upon the spiral springs E,
and the bowspring A, and renders the saddle support, more or less elastic as the case
may be.
Instead of a wire shackle as shown, I may make it solid with a slotted end, and the
screw G, may be right and left hand, fitting into correspondingly tapped holes in the
shackle and the cross head.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim, is :-
1. The construction of saddle springs for Bicycles and Tricycles with an adjusting
arrangement, substantially as hereinbefore described and illustrated.
2. A Saddle Spring or Support consisting of a bowspring A, a shackle H, and
the springs E, in combination with an adjusting Screw, such as G, for the purpose
specified, and substantially as herein before described and illustrated.
BARm
זו נדב
RODT. F. DRURY,
Agent for the Applicant.