A New or Improved Chain for Driving Machinery.
Year: 1896

page_text: Date of Application, 17th July, 1896-Accepted, 29th Aug., 1896
COMPLETE SPECIFICATION.
A New or Improved Chain for Driving Machinery.
I, ALBERT STOTZ, of 138 Neckarstrasse, Stuttgart, in the Empire of Germany,.
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 relates to a detachable driving chain in which the loosening of
two links can be effected, when they are put at right angles to each other, also the-
pitch of the chain enlarged.
In the annexed drawing
Fig. 1 shows the chain in side view.
Fig. 2 the section at z-z of Fig. 1.
Fig. 3 the rectangular position of two joints in side view.
Fig. 4 the rectangular position of two joints in plan view.
Fig. 5 the pin of the chain in two positions and two sections.
Fig. 6 a section at a-x of Fig. 2.
Fig. 7 a section at y-y of Fig. 2.
The chain joint consists of a cylindrical socket A which carries on both sides:
two cheeks A¹ which end in slotted bosses f. The connection of the joints between
each other is made in such a manner that the bosses f of the one joint surround the
socket A of the other and a pin b is put through both. The bosses are hollow
and are furnished with two horizontal ribs d lying on the outside between which
the pin b is guided in such a manner by two grooves c which are on each end and
placed opposite another, that it cannot turn. When composing the chain the single
joints are held together at a right angle (Figs. 3 and 4), the pin b is passed through
and then the chain is stretched, so that the pin with its grooves c slides between
the ribs d. In a stretched state the pin can never loosen itself, because it is kept
in position by the said ribs and when in a straight line jumping together of the
joints is rendered impossible, because the hosses f push against the projecting
cheeks A¹ and prevent a further approaching of the joints. For loosening the
chain it is necessary to put the links as shown in Figs. 3 and 4 rectangularly
together, so that the pin b can be moved back and taken out of the guiding ribs d.
The sections of the pin represented in Fig. 5 shows the same possessing on each
end rectangularly to the grooves c a hollow e on one side of the width of the
studs f: if the pin 6 is turned so that this hollow e lies on the exterior wall of the
stud f, it slides into the same and the pitch of the chain that is the distance
of the pin gets larger in the depth of the hollow e.
Figs. 1 and 2 which show the usual position of the pin and its links ready for
enlarging, at the two divisions t and t¹.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed I declare that what
I claim is -
1. A detachable chain with joints reaching one over another consisting of the
pins b provided with grooves c lying diametrically opposite and guided in corre-
sponding ribs d, of the bosses f arranged on the cheeks A¹ whereby the bosses f and
the projecting cheeks A¹ prevent the chain from sliding together, so that a
loosening can only be effected when the chain joints are in a rectangular
position.

page_text: 2. A detachable chain as in Claim 1 consisting of the hollows e on one side on
the pin b, which turned in the direction of the chain allow the pin to move
and the pitch of the chain to be enlarged all substantially as described and
illustrated.
Dated this 17th day of July 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents for Applicant.