An Improved Hinged Joint for Jack and other Levers Employed in Loom Dobbies.
Year: 1895

page_text: Date of Application, 9th July, 1895
Complete Specification Left, 2nd Apr., 1896-Accepted, 23rd May, 1896
PROVISIONAL SPECIFICATION.
An Improved Hinged Joint for Jack and other Levers Employed in
Loom Dobbies.
We, BENJAMIN LUPTON, and ROBERT HENRY PLACE of Sandy Gate Burnley,
in the County of Lancaster Dobby Makers, do hereby declare the nature of this
invention to be as follows:-
Our invention consists in the construction or formation of a hinged joint to be
used for connecting together jack levers, links, beam levers, and their catches all
of which are employed in loom dobbies. The primary part of our invention is to
dispense with rivets and screws largely used in forming such joints.
In carrying out our invention we form one of the levers with V or wedge shaped
edges and they are inserted into corresponding recesses in the adjoining levers.
The V shaped parts are semicircular and the extreme end of one part enters into
a deep recess in the other part. After the parts are put together they are slightly
twisted so as to fasten or make them secure.
The deep recess which receives the extreme end of one of the parts, forms a cup
to receive oil to lubricate the parts.
By making the edges V or wedge shaped more wearing surface can be obtained
than if the grooves were parallel, but if required, the grooves may be parallel or they
may be semicircular.
Dated this 8th day of July 1895.
TASKER & CROSSLEY,
Halifax, Patent Agents.
CUMPLEIE DI MUIFICATION.
An Improved Hinged Joint for Jack and other Levers Employed in
Loom Dobbies.
We, BENJAMIN LUPTON and ROBERT HENRY PLACE of Sandy Gate Burnley
in the County of Lancaster Dobby Makers 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:-
Our invention consists in the construction or formation of a hinged joint to be used
for connecting together jack levers, links beam levers, and their catches, all of
which are employed in loom dobbies.
The primary object of our invention is to dispense with rivets and screws largely
used in forming such joints.
In carrying out our invention we form one of the levers with V or wedge shaped
edges which are inserted into corresponding recesses in the adjoining levers.
In the accompanying drawings Fig. 1 represents a front elevation of the principle
parts of a loom dobby where A are the jack levers, which are connected by links B
and levers C to the ocam levers D for operating catches E, all arranged in the
ordinary manner, and as such form no part of our invention.

page_text: Our improvements relate to the connecting parts or joints of these several levers
where one portion of the levers, say, at a, is made with a V projection b which is
inserted into a corresponding V recess in the part C as shewn in section Fig. 2;
but the connecting parts may be made as shewn in elevation Fig. 3 and section
Fig 3 taken on line 1-2 of Fig. 3. In connecting these parts together we first
of all place them somewhat as indicated in dotted lines in Fig. 4, then they are
slightly twisted round, as shewn in full line in said figure until they occupy a fixed
position whereby they cannot become disconnected whilst working as the oscillating
motion of each joint is very slight. The horn or hook d is an additional means of
.security.
Having now particularly described and ascertained the nature of our said
invention, and in what manner,the same is to be performed, we declare that what
we claim is :-
The construction or formation of hinged joints for the dobbies of looms such
joints having grooves and projections and horns or hooks d as illustrated in the
drawings and for purposes described.
Dated in 1M 1000