Improvements in or relating to Cycle Saddles.
Year: 1894

page_text: Date of Application, 12th Dec, 1894
Complete Specification Left, 8th Oct., 1895-Accepted, 30th Nov.. 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Cycle Saddles.
I JOHN BOULTBEE BROOKS of Great Charles Street, in the City of
Birmingham, Manufacturer, do hereby declare the nature of this invention to
be as follows:-
-
This invention has relation to the metallic framing and spring parts of cycle
saddles, and is a development or an amplification of the strand wire framings and
springs described in the Specification of former Letters Patent granted to me and
bearing date the 5th day of October 1892 No. 17737, and has for one of its objects,
a resilient, yet unbreakable framing or spring, and for another object, a light
framing.
My said invention consists in employing a compound metal length, with the
component members or strips lying layer-like, one upon another, forming compound
wires or rods, which are fashioned into saddle framings and springs.
Thus, in carrying out one form of my invention, I build up a length of compound
wire or rod by taking two half-round sectioned strips or lengths of metal, and
placing the same closely together with the flats face to face, and then forming
therefrom a framing or a portion of a framing, having at parts, loop coils, which
constitute the springs for imparting the primary resiliency.
The metal strips or lengths may vary in cross section and gauge or one section
may be deeper than another, so that the strips of the inner cross section may form
the inner coils or curves when the compound wires or rods are bent or fashioned
into the desired shape.
Thus, when strand or plain framing is formed into coils, the change of figure
tends to distend the metal upon one side and compress it upon the other, and by
such continued action; the metal changes in constitution, becomes hard and breakage
ensues, whilst built up or compound wires in accordance with this invention have
independent flexure, hence the tendency to rupture is neutralized.
As a further form the compound wires or rods may be made by taking a series of
thin metal strips or lengths, and placing the same closely together; oue upon
another, and then forming therefrom a framing member, with loop coils.
Or the strips or lengths may be made of a slight trongh figure, so as to lie
cup-wise one within or one over the other.
The terminal ends of the laminar wires forming the under, body or base framings
may be suitably connected or they may be turned into eyes.
The members of the compound wires or rods are united together principally by
the boss and the end connections.
The opposed faces of the strips or compound lengths may have he and she ribs
and sinkings for taking into or over one another, and preventing lateral displacement.
and also for the purpose of increasing the strength of the outer member and
decreasing that of the inner one.
Where no loop coils are employed, for the purpose of lightness, I may place the
I
strips side by side, instead of one upon another.
When it is desired to support the rear of a saddle seat at four or a series of
points, then each of the laminar rods or wires of a supporting framing is divided at
its end into two or more branches or ramified terminations which are severally
connected to a skirting plate or other part of a saddle, or to a member of the
framing thereof.

page_text: As a further form, I may place the component strips of the compound wires
or rods side by side, and I then twist the end parts which are to form the springs at
right angles to the body parts, so that the middle parts of the compound rods have
their strip or lamina lengths side by side, whilst the end or other parts from which
the springs are to be made are arranged one above another.
The ramified ends may be formed from solid wires or rods instead of from
compound or laminar ones by splitting the ends into two or more parts then
spreading the branches outwardly.
Dated this 11th day of December 1894.
Improvements in or relating to Cycle Saddles.
I, JOHN BOULTBEE BROOKS of Great Charles Street, in the City of
Birmingham, 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 :-
This invention has relation principally to the springs of spring framings for
cycle saddles, and has for its object, a resilient yet practically unbreakable spring.
When springs are made from solid and thick rods, the constitution of the metal
becomes changed and the qualities thereof deteriorated consequent upon the metal
at the outer circumference of the spring being constrained to take a greater radius
than the metal at the middle part of the spring, hence stretching or distension
of the fibres, whilst the metal at the inner circumference of the spring is
compressed, whereby crystallization and deterioration in the quality of the metal
occur. The greater the thickness of the rod or wire metal employed, the greater
is the liability of the spring to fly.
According to my improvements this tendency to rupture is materially neutralized
by employing two or more wires, coiled one within the other, or one over the other,
so that the half or part thicknesses of metal are made to independently follow or
conform to each others shape, without any undue distension of the fibres of the
metal upon the outer part of the spring, or compression of the fibres of the metal of
the inner part of the spring, consequent upon the diminution in the cross section of
the metal. It will thus be observed that the component parts of these compound
springs have the property of independent flexure.
Figure 1 of the accompanying drawings represents a cycle, saddle with the fore
part of the framing of the same provided with a compound or laminar spring made
according to one form of my improvements.
Figure 2 represents a horizontal section of the said fore part upon the dotted
line Figure 1.
Figure 3 is an underside plan of the fore part of the said Figure 1.
Figure 4 represents two lengths of wire placed together prior to coiling the same
up into a spring.
Figure 5 represents the wires Figures 4 coiled, showing the relative positions
taken by the ends of the lengths after coiling. This view exemplifies how the
metal of the inner coil takes a less circuitous course than the metal of the outer
one, and it also shows the amount of distension and contraction that would
necessarily occur npon the outer and inner sides of a solid spring of the same cross
section on being coiled into a spring.
In Figures 1 to 5, u is a trussed framing, with the after part a', fittel with pillar
coiled springs b, coming between the underside of saddle and the said framing.
:

page_text: The fore part of the saddle is supported upon compound loop coiled springs d, each
made up of two separate rods d', d, and having upper and lower levering
arms, d, the latter being secured to the fore part a', of the trussed framing a,
by a clamping device a³; whilst the outer rod member d' is turned up at the end ³,
forming an abutment stop for the end d, of the inner member to
against, thereby preventing the withdrawal of the said end from the clamping
connection a³.
come
The end d', of the upper levering arm of the spring is clamped to the bracket e,
of a tension 1, secured to the front underside c², of the saddle seat c.
Figure 6 represents a compound spring made up of half-round or part circular
sectioned wire.
Figure 7 represents two lengths of such sectioned wire, placed side by side and
in the straight.
Figure 8.represents the component lengths separated.
Figure 9 represents two lengths of concave sectioned metal fitting within and
placed one above another.
Figure 10 represents a compound length made up of four strip lengths placed
one above another.
Figure 11 represents two half-round sectioned lengths, placed together and
reciprocally locking one another by the tenon a*, of the one taking into a groove a³,
in the other.
Figure 12 represents a saddle framing, each side of which is provided with two
sets of compound springs in accordance with my invention.
Figure 13 is an underside plan and Figure 14 is a section of Figure 12 upon the
dotted line, and looking in the direction of the arrow.
In Figures 12, 13 and 14, a is a framing, each side of which is made from two
rod lengths placed one above another, and separated from one another at the
middle a, of the framing. d are compound springs and c is the saddle seat.
Figure 15 represents another form of saddle framing, with compound springs
formed from the metal thereof, and Figure 16 is an underside plan thereof.
a is the framing, d are compound loop or eyed springs formed therefrom, a® is a
trussed part, c is the saddle seat, and a are branched ends formed by spreading or
opening out the component members d', d², of the framing sides a, rear of the
springs d, and which branched members are formed with single loop coils a³.
Figure 17 represents a further development of spring framings in accordance
with my invention. In this arrangement, the rod members, which are placed one
above another and thereby mutually support each other, have a double twist at
their junctions with the loop coils, so as to bring the thinner rod metal upon the
inner circumference of the spring and the thicker metal on the outer circumference
and thereby equalize the resiliency.
c is the saddle seat, a the compound underframing composed of a thin rod a',
and a thicker rod a², which are collectively twisted at a³, so as to bring the thinner
rod a', to form the inside coil d', of the compound spring d.
Figure 18 is a modification of the last arrangement of spring framing. In this
form, the component members a³, a², forming the compound framing rod a, are
placed side by side, but in order to make the component coils d, d², of the
spring d, lie within or over one another, the said rod members are collectively
twisted at a³, at their junction with the spring, so as to transpose them into a
dissimilar or right angled plane, and bring the one coil within the other.
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 :-
First. In the coils of the springs of the framings of cycle saddles, making the
same from two or more component rod members so coiled as to lie one within the
other and each having independent Hexure, substantially as and for the purpose
described and set forth.

page_text: Secondly. In the compound organized spring framings of cycle saddles,
constructed of rod members of varying thickness twisting the rod members at the
junctions of the frame sides with the springs in order to bring the thinner section
of wire to the inner side of the compound coil for equalizing the elasticity,
substantially as and for the purpose as described and set forth in Figure 17.
Thirdly. In compound organized spring framings of cycle saddles, twisting the
rod members at the junction of the frame sides with the springs for the purpose of
transposing or bringing the coils of the spring one within the other, substantially as
described and set forth in Figure 18.
Dated this 7th day of October 1895.
JOHN BOULTBEE BROOKS,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.