An Improved Shedding Motion for Looms.
Year: 1896

page_text: Date of Application, 9th July, 1896
Complete Specification Lelt, 22nd Feb., 1897-Accepted, 22nd May, 1997'
PROVISIONAL SPECIFICATION.
An Improved Shedding Motion for Looms..
I ELIJAH SALISBURY, of 36 Southfield Street, Nelson, in the County of Lancaster,
Weaver, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to impart a positive up and down motion to the
shafts, or healds, of the looms from below, by means of tappets or cams engaging with
sliding arms, and thereby to dispense with the overhead framework, cords, wires, and
the like, and to give the weaver better access to his work and better light.
For the purposes of my invention I provide the loom with a countershaft which I
purpose to drive from the existing driving shaft by means of bevil wheels which are.
made of different sizes and interchangeable so as to give a variety of speeds.
The countershaft is also adjustable lengthways, and is supported by brackets secured
to the frame.
Upon this shaft is secured a set of tappets or cams which are so arranged as to lift.
in any desired order any suitable number of healds by engaging with horizontal
arms projecting from vertical rods which are attached by screws to the bottom
stave of the heald and are provided with tee-shaped heads the ends of which are-
turned up and are pointed so as to sink into the stave or into a socket provided for
that purpose.
The top stave of the heald is supported and connected to the bottom stave at each-
end by vertical bars which slide and are guided at each end in grooves in a guide plate.
attached by brackets to the lower side.
The vertical rods attached to the bottom stave are also guided above and below by-
means of a guide plate.
When the horizontal arms before mentioned are liberated by the tappets they slide
down the face thereof by gravity until they come to rest upon an adjustable support
by raising or lowering which the lift and fall of the various healds may be regulated.
I also regulate the lift by means of various lengths of tappets, and in quick-
running looms 1 purpose to adjust a spring or springs to assist the downward.
motion of the healds if required.
Dated the 7th day of July 1896.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
ELIJAH SALISBURY 36 Southfield Street Nelson Weaver 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 :-
The object of this invention is to impart a positive up and down motion to the
shafts or healds of looms from below, by means of tappets or cams engaging with.

page_text: DESCRIPTION.
The parts marked A. A. upon the drawings show the existing tappet shaft, by
means of which I purpose to drive the new tappet shafts B. B. by means of the
bevel wheels C. C. & D. D. The shafts B B are supported by the frame F. G.
and by the brackets E. E. Upon the shafts B B I put a set of tappets H. H. that
lift in any prearranged order any number of healds, by engaging with the horizontal
arms 1 I.
For a satin stripe on a twill ground I put a five tappet on one of the shafts B,
and a four tappet on the other shaft B. and I vary the number and shape of the
cams or tappets according to the kind of cloth I wish to weave. For a satin stripe
on a plain ground I put a five tappet on one shaft B, and that makes the satin
stripe, and on the other shaft I put a two lift tappet to make the plain ground,
when working a plain, or plain stripe, I attach, by means of a set screw, a horizontal
arm similar to the arms I. 1. to the lower ends of each of the two vertical sliding
parts I. K. onto which the cams press on their downward journey, and so make a
positive shed.
The tappets are loose upon the shafts B. B. and are revolved by engaging with
the single clutches V, which allow the loom to be turned back two or three picks.
The clutches V can be fixed in any position by means of the set screw W.
The arms K are a continuation of the horizontal arms I. I. the bottom stave P
is fixed to the arms K by means of the set of thumb-screws shown at X. The
ends of K are pointed as at L to enter into the stave.
The top stave R is supported and secured in the sockets at the ends of the vertical
sliding bars M. M. these bars M being fixed upon the ends of the bottom stave P.
and are guided by the grooves in the adjustable guide plate N. The lifting
bars I. K. are also guided above and below the arms II by means of the guide
plates T. T.
As the arms I. I. are liberated by the tappets they slide down the face of the
cams or tappets, and I make the tappets to give a quick or slow fall as required
by the kind of cloth to be made.
CLAIM.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is
1st. The improved shedding motion for looms substantially as hereinbefore described
and illustrated by the drawings annexed, consisting in the combination of a series
of tappets or cams, and slides lifting the healds entirely from below.
Dated this 20th day of February 1807
ELIJAH SALISBURY.