other Purposes.
Year: 1887

page_text: Date of Application, 27th Apr., 1887
Complete Left, 10th Jan., 1888
Complete Accepted, 10th Feb., 1888
other Purposes.
I JAMES ALFRED LAMPLUGH of the firm of Thomas Webb Jones and Company of
Nos. 4, 5 and 6 Horse Fair Birmingham in the County of Warwick Coach and
Saddlers' Ironmongers do hereby declare the nature of this Invention to be as
follows:-
The shackles by which the two parts of elliptical and other like carriage springs
are connected together and by which the ends of semi elliptical springs are connected
to carriages ordinarily consist of an elliptical iron band or hoop the interior of which
is filled by an elliptical block of vulcanised india rubber in which india rubber holes
are made into which the ends of the two parts of the spring to be connected together
are inserted or in the case of a semi elliptical spring the end of the spring and the
rod by which the spring is affixed to the carriage are inserted. The elasticity of the
india rubber is limited by the elliptical iron band surrounding it and the shackle
deadens vibrations very imperfectly.
In making a shackle according to my invention I employ in place of the rigid
elliptical iron band or hoop ordinarily employed an elastic band or hoop made of a
flattened coil of hardened and tempered steel wire the ends of the coil being connected
together. I prefer to make the block of vulcanised india rubber with flanges at its ends
so that the elastic elliptical band or hoop seats itself between the said flanges. As
the said elastic hoop yields to the pressure to which the india rubber is subjected the
shackle has much greater elasticity than shackles as ordinarily constructed.
Where a great range of elasticity in the shackle is desired I divide the block of
india rubber in a plane crossing the direction in which the greatest elasticity is
required. In this case the two parts of the india rubber block separate under great
pressure their separation being controlled and limited by the elastic band or loop.
Owing to the great elasticity of shackles made according to my invention they deaden
vibration to an extent unattainable in shackles of the ordinary construction.

page_text: Besides being applicable to carriago springs shackles made according to my
invention are applicable for various purposes where an elastic support is required. For
example they may be employed for supporting the seats of velocipedes the seat being
connected at its ends by means of vertical rods with the lower part of the india
rubber block of the shackle other rods fixed to the body or backbone of the velocipede
being connected with the upper part of the india rubber block.
Similarly shackles made according to my invention may be employed generally
where it is desired to effect a connection between two bodies or things in such a way
that vibration in the one shall not be transmitted or transmitted only to a diminished
extent to the other.
Dated this Twenty seventh day of April 1887

page_text: COMPLETE SPECIFICATION.
Improvements in Shackles for the Springs of Carriages and for
other Purposes.
I JAMES ALFRED LAMPLUGH of the firm of Thomas Webb Jones and Company of
Nos. 4, 5 and 6 Horse Fair, Birmingham in the County of Warwick, Coach and
Saddlers' Ironmongers do hereby declare the nature of my Invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
The shackles of semi elliptical grass hopper and other like carriage springs by
which the said springs are connected to carriages ordinarily consist of an elliptical
iron band or hoop the interior of which is filled by an elliptical block of vulcanised
india rubber in which india rubber holes are made into which the ends of the parts to
be connected together are inserted. The elasticity of the india rubber is limited by
the elliptical iron band surrounding it and the shackle deadens vibrations very
imperfectly.
In making a shackle according to my invention I employ in place of the rigid
elliptical iron band or hoop ordinarily employed an elastic band or hoop made of a
flattened coil of hardened and tempered steel wire, the ends of the coils being
connected together. I prefer to make the block of vulcanised india rubber with
flanges at its ends so that the elastic elliptical band or hoop seats itself between the
said flanges. As the said elastic hoop yields to the pressure to which the india
rubber subjected the shackle has much greater elasticity than shackles as ordinarily
constructed.
Where a great range of elasticity in the shackle is desired I divide the block of
india rubber in a plane crossing the direction in which the greatest electricity is
required. In this case the two parts of the india rubber block separate under great.
pressure their separation being controlled and limited by the elastic band or hoop.
Owing to the great elasticity of shackles made according to my invention they deaden
vibration to an extent unattainable in shackles of the ordinary construction.
Besides being applicable to carriage springs shackles made according to my
invention are applicable for various purposes where an elastic support is required. For
example they may be employed for supporting the seats of velocipedes the seat being
connected at its ends by means of vertical rods with the lower part of the india
rubber block of the shackle other rods fixed to the body or backbone of the velocipede
being connected with the upper part of the india.rubber block.
Similarly shackles made according to my invention may be employed generally
where it is desired to effect an elastic connection between two articles or things.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which my invention is to be performed.
Figure 1 represents in perspective a shackle constructed according to my invention
applied to one end of a semi elliptical carriage spring the india rubber block of the
shackie being made in two parts; Figure represents the india rubber block of the

page_text: shackle detached; Figure 24 represents in side elevation the metallic elastic hoop
or band detached; Figuro 3 represents the india rubber block having flanges;
Figures 4, 5, 6 and 7 represent shackles constructed according to my invention
applied to the frames of velocipede saddles.
I will first describe the carriage-spring shackle Figures 1, 2 and 24.
The shacklo consists of the india rubber block a, a² made in two parts (the
smaller part a partly fitting in a concavity in the lower portion of the larger part a)
and the elastic metallic hoop or band b encircling the said india rubber block a a
and pressing and preserving the two parts of the said block- together. The said
elastic hoop or band 6 permits of the separation of the two parts of the block]
under pressure as well as limits their separation. The said elastic hoop or band b
is made-of-a-flattened coil of hardened and tempered steel wire the ends of the
flattened coil being booked together at c or otherwise connected together. The
flattened elastic coil to form the elastic hoop or band of the shackle is coiled or
bent from a length of steel wire in the ordinary way of coiling wire for other
purposes d is the end of the semi elliptical carriage spring having a fork e between
the branches of which the larger part a of the india rubber block and the elastic
hoop or band bare situated. The said fork e has side eyes at f and the block a is
connected to the forked end of the spring by the cross bolt or pin 9 passed through
the middle of the said block a and through the eyes at f; h is the flat rod fixed to
the carriage frame to which the shackle is connected. The said rod has a fork-h²
and eyes at p. In the fork the smaller part a² of the shackle block and the elastic
hoop or band & are situated and the said smaller part a² of the block is connected to
the flat bar on the carriage frame by passing the bolt or pin k through the axis of
the block a and through the eyes p of the fork ². The two parts a, a of the india
rubber block of the shackle may be moulded in strips or lengthis having the sectional
figures represented and are consequently without flanges at their ends, the elastic
metallic hoop or band b of the shackle being preserved in its place on the block and
lateral motion in it prevented by the forks e, 2 in the ends of the semi elliptical
-spring d and fixed bar h, but the two parts of the india rubber block may be provided-
with flanges at their ends for the elastic band or hoop to seat itself between. An
india rubber block having flanges is represented in Figure 3 where the flanges are
marked a3 a³.
In place of making the india rubber block either plain or flanged of two pieces the
block may be mado solid or in one piece having the sectional figure of the two
combined parts a, a², or a, a³, a³ or other desired figure when a limited amount of
elasticity is required in the shackle.
Figure 4 represents in sido elevation Figure 5 in end elevation and Figure 6.in
plan of underside my improved shackles applied to the suspending and supporting
frames of a tricycle saddle the saddle being provided with three shackles one at the
front and two at the back of the saddle frames. In the said Figures 4, 5 and 6 the
india rubber blocks of the shackles are marked a, a2 and -the metallic elastic hoops or
bands encircling them are marked b, b; is the leather seat of the saddle connected'
by its ends to the suspending frame or rods m, m², m³. The bottoms of the
back rods mo, ma of the suspending frame carry loops m², m² and the front rod m
embraces and passes through the lower block a. The ends of the said rods m³, m
form pins crossing the said loops and fork and are passed through holes in the
smaller parts a², a of the india rubber blocks as described with respect to the bolts or
pins of the carriage spring shackle, the said rods being fixed to the said blocks either
by rivetting their ends or by screw nuts: n, n² is a T shaped supporting frame
secured by the connection at to the frame of the tricycle. The said supporting
frame has at back a cross bar n each end of which carries a rectangular loop n³ and
the front of the part n of the frame is forked at n. Pins cross the said loops n³, n³
and join the branches of the said fork n' the said pins passing through and supporting
the larger parts a, a of the india rubber blocks. The larger parts a a of the said
blocks are thus connected to the loops n³ ³ and fork n' on the T shaped
supporting frame n n³ and the smaller parts a², a² of the said blocks are connected to

page_text: the loops m², m³ and forked rod m of the suspending frame, the two parts of each
block being pressed together by the metallic elastic hoop or band around them as
before described. The loops m², m² at the bottoms of the rods m³, m³ of the suspending
frame aro provided with leather or other packing pieces 7, 4 for the elastic hoops or
bands 6 to bear against and prevent friction of the metallic elastic hoop or band
against the loops m², m².
When a rider seats himself upon the saddle the smaller parts a², a² of the several
shackle blocks supported by the suspending frame separate from the larger blocks a, a
supported by the fixed frame and the elastic hoops or bands b, b surrounding the said
shackle blocks are put into a state of tension. A very elastic saddle is thus produced
by the use of my improved shackles the said shackles at the same time deadening or
nearly deadening vibrations in the saddle.
The india rubber blocks of the shackles of this tricycle saddle may be provided
with flanges for retaining the elastic hoops or bands in their places and where a small
range of elasticity only is required in the saddle solid india rubber blocks may be
used instead of blocks made in two pieces.
Figure 7 represents in side elevation another saddle provided with shackles
constructed according to my invention. This saddle resembles that last described
excepting that the suspending frame m is arch shaped and the saddle is connected to
it at its middle. The T shaped under frame n and the shackles are constructed as
described with respect to the last mentioned saddle excepting that the india rubber
blocks of the shackles are provided with flanges for retaining the elastic hoops or
bands in their places.
The arrangements of the shackles of the saddles Figures 4, 5, 6 and 7 are suitable
for tricycles and safety bicycles of the Rover type and by changing the shape of the
frame and using the required number of shackles they may be applied to saddles for
all kinds of velocipedes.
When the blocks of the shackles are made in two pieces the said blocks instead
of being made of vulcanized india rubber may be made of other materials such for
example as leather or wood.
Although I have only represented my improved, shackles in connection with a semi
elliptical carriage spring and with the suspending and supporting frames of saddles
for velocipedes yet my invention as before stated may be applied generally where an
elastic connection is required between two parts of an article such for example as
suspending the seats of chairs and the mattresses of bedsteads.
Having now particularly described and ascertained the nature of my inven-
tion and the manner in which the same is to be performed I declare that I claim
as my invention ;-
First The combination with each of the vulcanized india rubber blocks of the
shackles of carriage springs, the frames of the saddles of velocipedes and other articles,
of a metallic elastic hoop or band surrounding the said block, the said elastic hoop or
band being made, applied and acting substantially as hereinbefore described and
illustrated in the accompanying Drawings, whether the india rubber blocks of the
shackles be made in one piece or in two picces and whether the said blocks have
flanges on their ends for retaining the elastic hoops or bands in their places, or are
without flanges substantially as described and illustrated.
Secondly The combination of metallic elastic hoops or bands with the blocks of
shackles made in two pieces and of other materials than vulcanized india rubber as
herein described.
Dhi th J
1000