Improvements in or connected with the Manufacture of Chains.
Year: 1893

page_text: Date of Application, 23rd Mar., 1893)
Complete Specification Left, 27th Dec., 1893-Accepted, 27th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Manufacture of Chains.
I, George WilliAM ELLIOTT, of Meersbrook Park Road, Heeley, Sheffield,
in the County of York, Mining and Mechanical Engineer do hereby declare the
nature of this invention to be as follows :-
An improved method of constructing chains, having links of cast or similar
material, and the manner of coupling the said links together.
In making chains of the description to which my invention, or a portion of the
same, applies, the several links or pieces are connected, generally by pins or bolts,
having a head or its equivalent at one end, with a washer, nut, or a split pin passing
through the other end thus securing the whole in position.
By my invention I construct a chain of links similar in configuration to those
already in use, but connect the same by means of parallel pins, of one or more
diameters, having at a suitable distance from one or both ends, on the periphery, or
a portion of the periphery, a groove, recesses, or saw-gate, of approved width and
depth.
This groove may be formed by securing to a table, or in a frame, or any similar
contrivance, any convenient number of pins, placed side by side, and passing the
same over or under a saw, or any other suitable tool, thus forming a groove or
grooves in any desired number of pins at one operation.
That portion of the link which receives the end or ends of the beforementioned
pin I form having in the requisite position, at right angles with the main pin hole,
and near the periphery of the same, one or more taper or parallel small pin or
cotter holes, through which is passed a small length of steel or other suitable
material, of the required section, and which is made to engage with, and secure in
position by means of the saw-gate or groove before described, the main pin or pins
connecting the links.
Instead of forming the said small pin or cotter holes by means of drilling the
same, I use metallic cores, combined with, or in lieu of, sand, painted or covered
with any approved material, and form the said small holes, by the above means, in
and during the process of casting links I do not confine myself to the use of the
metallic cores, but use them preferably where small holes are required, by so doing,
I avoid the danger of the cores being washed away during the casting process, in
addition to obtaining much sounder castings than where sand or similar material is
aloue used.
T
... of March 1893
COMPLETE SPECIFICATION.
Improvements in or connected with the Manufacture of Chains.
I, GEORGE WILLIAM ELLIOTT, of Meersbrook Park Road, Heeley Sheffield,
in the County of York, Mining and Mechanical Engineer 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 :-
An improved method or manner of constructing chains formed of, or by links of
cast or similar metal or material, and the methods I adopt preferably in coupling
he said links together.

page_text: In constructing chains of the description to which my invention applies, the
several links or pieces are connected generally by pins or bolts having a head or its
equivalent at one end, with a washer, nut, or split pin passing through and securing
the whole in position.
The accompanying sheet of drawings will be found sufficient to illustrate the
principles of my invention, in the various figures of which, same letters of reference
apply to, and indicate same or similar parts of details.
Figure 1, illustrates the method I preferably adopt in constructing a chain
having links, A, similar in configuration to those already in use, but which are
connected or coupled together by means of parallel pins B, having at the necessary
and approved distance from each end, on the periphery, or a portion of the
periphery of the same, a groove or grooves, or recesses or sawgate C, of the
required width and depth, rectangular or otherwise.
This groove or sawgate C, may be formed in the pins, by securing to a table, or
in any approved frame or similar contrivance any convenient number of the said
pins placed side by side, and passing the whole over or under a saw or saws, or any
other suitable tool, thus forming a groove or grooves, in any desired number of pins
at one, and the same operation.
In that part or portion of the link A, which receives the ends of the pins B, I
form, (having in the requisite position, at right angles with the main pin hole, and
near the periphery of the same), one or more taper or parallel small pin or cotter
holes D, and through which is passed a short length of steel or other suitable
material E, of any required section, engaging with and securing in position (by
means of the sawgate C, in pin B, and before described), the main pin B connecting
or coupling the links A.
Figure 2, shews my invention applied to chains having links, solid and in halves,
alternately, connected by pins B', with groove C, at one end only, the other end
being provided with a head of any approved shape.
In the construction of the links I form the holes D, by using metallic cores, in
lieu of sand, and form the said holes during the process of casting the links A.
I do not confine myself to the use of the metallic cores, but adopt them
preferably where the small holes are required, by so doing I avoid all danger of
the cores being washed away during the casting process.
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 ;
+
1st. In the construction of chains, having links of cast metal, coupled together by
means of pins, the use of small cotters passing through the cored holes, and
engaging with the sawgate or groove in said pins, for the purpose of securing the
same in position, as herein described and shewn on the accompanying drawing.
2nd. In the construction of small holes in the links forming a chain as described,
the use of metallic cores in lieu of sand or other material as and for the purpose or
purposes herein described.
Dated this 23rd day of November 1893.