An Improved Method of Producing Chains Without Welding from a Solid Plate.
Year: 1891

page_text: Date of Application, 24th Nov., 1891
Complete Specification Left, 26th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
An Improved Method of Producing Chains Without Welding from
a Solid Plate.
I, CHARLES HUELSER of the firm of Huelser & Co. of Temple Chambers,
London, International Patent Agency, do hereby declare the nature of this
invention, a communication to me from abroad by Gustav Schilling of 60 Brunnen-
strasse, Berlin, in the Empire of Germany, Railway Official, to be as follows:-
The object of this invention is a method of producing chains by working the
single coherent links without welding out of a solid plate which has been cleft by
cuts into two relatively movable broken-through plates.
The plate is first cut through the middle of its thickness horizontally on each of
the longitudinal sides, the width of these cuts depending on the size of the links to
be produced. Then parallel vertical cross cuts are made, reaching from the inner
side of one of the horizontal cuts to that of the other and at a distance from each
other of double the width of the sides of the links to be made. Subsequently the
staves or bars thus produced are cut through up to the horizontal cuts alternately
on each side and on the top and bottom side of the plate, so that, on the top or
bottom side, a cut side of a bar lies opposite a non-cut side, and a cut side on the
top side corresponds to a non-cut side on the bottom side and vice versa.
The bars are subsequently halved by a longitudinal cut through the whole
thickness of the plate up to the side where the bar is coherent with the plate
where this cut is continued to the end through half the thickness of the plate i.e. as
far as the horizontal cut has divided the same.
After all the said cuts have been made, each of the coherent links is movable
independently, and the rough chain is made and can be finished in any suitable
manner.
Dated this 23rd day of November 1891
HUELSER & Co.,
Agents for the Applicant.
4
COMPLETE SPECIFICATION.
An Improved Method of Producing Chains Without Welding from
a Solid Plate.
1, CHARLES HUELSER, Patent Agent, of Temple Chambers, Temple Avenue,
in the City of London, do hereby declare the nature of this invention and in what
manner the same is to be prepared, to be particularly described and ascertained in
and by the following statement :-
This invention relates to a method of producing chains from solid plates by
sawing, cutting, punching, or analogous operations, so that each chain link is formed
without any welding or brazing.
In the accompanying drawing
Figs. 1, 2, 3, and 4 illustrate the consecutive stages of the process or manufacture.
A strip or plate of metal (or other suitable material) sucli as shown in Fig. 1, is
first provided with a series of parallel incisious a, which terminate at some distance
from the edges of the plate and extend through its whole thickness (from the front
to the backside). Subsequently grooves or incisions c are cut into the edges of the
plate, which incisions extend to the point or line, where the incisions a cease.
Finally incisions are made between the cuts a alternately at the top and at the
bottom, said incisions being of such a depth as to reach the incisions C and made
D77

page_text: alternately from the front and from the back of the plate, that is to say, so that
the incisions in the back will not coincide with those at the front, but are placed
diagonally to the same. •
'
When this has been done, the original plate or strip consists of two plates
which are capable of relative motion and interlace each other, in the manner
represented by Figs. 2 and 3, where Fig. 2 shows the upper part of a component
plate bent forward.
It only remains to separate the individual links from the plates by means of
incisions made alternately into the front and into the back plate, as represented
by Figs. 3 and 4, in order to obtain a continuous chain, the links of which are cut
out of the solid metal or other raw material.
The same type of chain may also be produced by casting, for which purpose a
plate having the outlines of Fig. 1 is cast, in a mould provided with core plates
corresponding to the lines a b c d, so as to produce the said incisions in the
casting.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The method of producing a weldless chain from a solid plate, which consists
in providing the said plate at suitable distances with parallel longitudinal cuts and
with parallel transverse cuts, so as to form two perforated plates interlaced with
each other and capable of relative motion, and then separating the chain links thus
produced, one after the other, alternately from the first and from the second of the
said perforated plates, substantially as described.
2. The modification of the method specified above, by casting the chain plates in
moulds containing core plates adapted to produce the incisions a bed.
Deted this 26th dev of July 1802
HUELSER & Co.