Improvements in or relating to Small-ware Looms.
Year: 1889

page_text: Date of Application, 3rd Aug., 1889
Complete Specification Left, 30th Apr., 1890-Accepted, 31st May, 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Small-ware Looms.
We, HENRY BURGESS, of Congleton, in the County of Chester, Manufacturer,
THOMAS BURGESS, of Congleton, aforesaid, Manufacturer, and JOHN ATKINSON WOOD,
of Great Bridgewater Street, Manchester, in the County of Lancaster, Manufacturer,
do hereby declare the nature of this invention to be as follows :-
This invention relates to the actuating mechanism for driving the shuttles in small-
ware looms of various designs with the object of securing a positive, steady, and
smooth motion calculated to work at a greater speed with less noise and with very
much less wear and tear of the lathe or batton than the ordinary motions at present
in use.
On a rotating shaft, placed in a suitable position in the loom is secured a disc or
cam, having preferably an eccentric groove (though it may be somewhat elliptical or
double heart shaped) in which works a runner or bowl carried on a lever or treadle.
As the disc or cam rotates the lever is caused to move backwards and forwards, in a
fixed path, the cam being so arranged that the movement in both directions is similar.
To this lever are attached straps which are passed over blocks or pulleys to guide the
direction of their movement, as they move to and fro with the lever. The other end
of these straps attach to the mechanism of whatever description employed which
directly propels the shuttle backwards and forwards through the shod.
The loom may be turned either backwards or forwards and the shuttles will always
move clear out of the shed and so prevent damage to the edges of the fabric, the
shuttle also will be prevented trapping in the shed and breaking out the warp or
knocking down the pieces and the loss of time and expense caused by damage done
when the shuttles do not clear quite out of the space allotted to the warp will be
obviated. As a result good work will be produced with straight and smooth
edges.
Dated thin and day of August 1990
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Small-ware Looms.
We, HENRY BURGESS, of Congleton, in the County of Chester, Manufacturer,
THOMAS BURGESS, of Congleton, aforesaid, Manufacturer, and JOHN ATKINSON WOOD,
of Great Bridgewater Street, Manchester, in the County of Lancaster Manufacturer,
do hereby declare the nature of this invention and in what manner the saine
is to be performed, to be particularly described and ascertained in and by the following
statement: :-
This invention relates to the actuating mechanism which gives motion to the shuttle
drivers in small-ware looms more particularly those known as peg shot and rack and
pinion shot-with the object of securing a positive, steady, and smooth movement
calculated to work at a greater speed with less noise and with very much less wear
and tear of the lathe or batten and shuttles than the ordinary motions at present in
use.
The invention will be fully described in reference to the accompanying drawings
which show sufficient of a loom of the class referred to, to illustrate it.
Fig. 1, end elevation of loom showing the invention applied to either rack and
pinion or peg shot battens.
Fie front elevation of same.

page_text: Fig. 3 front elevation of modified form of the invention.
The main parts of the loom such as the framework A, the batten (of which the
bottom rail B only is shown) the shuttles, shuttle driver, reed, and healds and their
actuating mechanism are all constructed as usual and hence are not shown in the
drawings.
On the tappet shaft C, either at the end as shown or in other convenient position,
we secure a cam D, of the shape shown in Fig. 1, or of other shape as may be required
according to the material being woven. The cam D, is constructed to give four picks
or shots to each revolution of the tappet shaft but it may be constructed of any other
form required such as to give two picks between each beat up of the batten or to
allow the batten to beat up twice between each pick or shot of the shuttle. The
cain D; is in each case formed with a groove d in which works or slides a bowl or
runner E, carried by a pivoted lever F, and as the can rotates the bowl or runner E
is alternately raised and lowered by the cam, leaving a dwell of any required duration
between the upward and downward movement.
The lever F, which carries the bowl or runner E, is pivoted at f to a stand or
bracket G, or it may be pivoted on a stud affixed to the frame A.
Referring to Figs. 1 and 2, a connected rod H, leaving to a convenient position at
the head of the frame A, connects the lever F with a second pivoted lever I, which is
formed with a toothed sector J, at the other end, to engage with a small pinion K.
The pinion K is attached to a wheel or pulley L which moves with it the pinion K
and pulley L, receiving a reciprocating rotary movement from the toothed sector J.
To the wheel or pulley L is or are connected a strap or straps M, N, which are con-
nected to or pass over a pulley O, carried at the end of the batten rail B. This
pulley O, has connected with it a pinion o which gears with a rack attached to the
ordinary driver bar from which the movement is communicated to the shuttles in the
usual way. The straps M and N are provided with links m n by which they can be
tightened or adjusted. The length of throw given to the shuttles through the
straps M, N, is regulated by the connecting rod H, which can be attached to the
levers and I at any required distance from their respective centres. It is provided
with a right and left hand screw coupling by which its length can be regulated and
adjusted.
In the modification represented in Fig. 3 the lever I, sector J, pinion K, pulley L,
and rack and pinion at the end of the batten are dispensed with, and the lever F is
connected to the driver bar under the batten by means of the strap H', which passes
over two pulleys or rollers J K¹ to which is imparted a reciprocating rotary motion,
and connected to the roller K' is the pulley L' to which the straps M' N are attached,
the other end of the straps M' N¹ being connected to the driver under the batten
which moves the shuttles to and fro. Another mode of connected the lover F with
the driver bar under the batten is to dispense with the pulley.and rack and pinion at
the end of the batten and pass the straps M and N through the batten and round two
runners under the batten and secure the straps to the driver bar and so give motion
to it.
In operation as the cam D rotates a positive up and down movement is given to the
lever in a fixed path; in the mechanism shown in Fig. 1 the movement of the
lever F is communicated by the connecting rod H to the lever I and sector J and by
them communicated to the straps M N which are in communication with the rack
and pinion at the end of the batten which directly propells the shuttle driver. In the
modification shown in Fig. 3 the motion of the lever F is communicated direct to the
strap H and from the pulley L₁ to the straps M' N' which are connected to
the shuttle driver. In either case the motion is the same, and at each movement of
the lever Feither up or down the shuttle is driven through the shed.
By this invention we consider a more smooth and even movement is obtained so
that the looms can be worked at a greater speed and with less wear and tear to the
shuttles. The crank shaft or tappet shaft of the loom may be turned in either
direction and the shuttles will always travel clear of the reed space without rebound
and thus obviate damage to the fabric through the trapping of the shuttle in the shed.

page_text: As a result good work will be produced in respect both to the body of the piece and
the edge as the shuttles are caused to move with a steady even draw.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
1. A small-ware loom having a positive mechanism for actuating the shuttle drivers
consisting of a rotating cam and single pivoted lever moved up and down thereby,
and a connecting rod or strap by which it is connected to, or conveys a reciprocating
movement to, a wheel or pulley carrying straps which communicate the motion to the
shuttle driver, substantially as described.
2. The combination with a small-ware loom of a positive mechanism for actuating
the shuttle driver constructed and arranged, substantially as described with reference
either to Figs. 1 and 2, or to Fig. 3.
Dated this 29th day Apr
1034.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.