Year: 1886

page_text: Date of Application, 23rd Nov., 1886
Complete Left, 22nd Aug., 1887.
Complete Accepted, 23rd Sept., 1887.
We RICHARD GREENWOOD, and THOMAS GREENWOOD, both of Blackburn, in the
County of Lancaster, Manufacturers, and WILLIAM HENRY HAYHURST, of No. 37
Ivy Street, Blackburn aforesaid, Mill Manager, do hereby declare the nature of this
invention to be as follows
This invention relates to looms for plain weaving of the class wherein the straps
carrying the healds are connected to opposite sides of bosses fast on the rocking
shedding shaft, and the invention is designed to ensure a dwell for the healds before
the reversing motion of the rocking shaft affects the bosses carrying the straps which
operate the healds.
According to our invention the bosses carrying the straps are loose on their shaft,
being in the form of a pulley, the boss of the pulley being cut away, about half its
diameter whilst a small boss fast on the said shaft, having a lug or finger, which
engages with the cut away boss, of the strap pulley forming a clutch box, so that when
the finger has moved the pulley part of a revolution, and raised the healds in one
direction, on the reverse motion, the rocking shaft, bosses, and fingers, must move part
of a revolution before effecting any movement in the straps pullies, and healds, in the
opposite direction, and vice versae.
1 1h 16th day of November 1886
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.

page_text: We, RICHARD GREENWOOD and THOMAS GREENWOOD both of Blackburn in the
County of Lancaster Manufacturers, and WILLIAM HENRY HAYHURST of No. 37
Ivy Street, Blackburn aforesaid, Mill Manager 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 looms for plain weaving of the class wherein the straps
carrying the healds are connected to opposite sides of bosses fast on the rocking
shedding shaft and the Invention is designed to ensure a dwell for the healds before
the reversing motion of the rocking shaft affects the bosses carrying the straps which
operate the healds.
According to our invention the bosses carrying the straps are loose on their shaft
being in the form of a pulley, the boss of the pulley being cut away, about half its
diameter, whilst a small boss fast on the said shaft having a lug or finger which
engages with the cut away boss of the strap pulley forming a clutch box so that when
the finger has moved the pulley part of a revolution, and raised the healds in one
direction, on the reverse motion, of the rocking shaft, bosses and fingers, must move
part of a revolution before effecting any movement in the straps, pulleys, and healds,
in the opposite direction, and vice versa.
Such being the nature and object of this our Invention, the following is a complete
description of same, reference being had to the accompanying drawings which form
part of this Specification, in which :-
Fig. 1 is a front elevation of our improved apparatus, the opposite end being of
like construction.
The bosses 1. 2. carrying the straps 2^ are loose on their shaft 3 being in the form
of a pulley, the boss 4 of the pulley 2 being cut away, about half its diameter whilst
a small boss 5 fast on the said shaft 3, having a lug or finger 6 which engages with
the cut away boss 4 of the strap pulley 1 forming a clutch box, so that when the finger 6
has moved the pulley 1 part of a revolution, and raised the healds 8 in one direction,
on the reverse motion, the rocking shaft 3, boss 5, and finger 6, must move part of a
revolution before the part 6 operates on 4ª and effects any movement to the strap
pulleys 1, 2, and healds 8, in the opposite direction, and vice versa, and so gives more
time for the shuttle to cross the race, and enter its box, and more time for the beat up
of the weft before the healds move the warp again in formation of next shed.

page_text: 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 :-
1. The loose pulleys 1, 2, the boss of which is in part cut away, in combination
with fast boss 5 having finger or lug such as 6 composing an intermittent engaging
clutch, as and for purpose herein fully described and as illustrated by annexed
drawing.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.