Mechanisms of Looms for Weaving.
Year: 1886

page_text: Mechanisms of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY of Keighley in the County of York,
Machine Maker, and JAMES HILL, of the same place Mechanic, do hereby declare
the nature of our invention for IMPROVEMENTS IN THE SHUTTLE-ACTUATING, AND
HEALD OPERATING MECHANISMS OF LOOMS FOR WEAVING 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 firstly the, application of parts to. the shuttle-
actuating mechanism, of that class well known as the "overpick" of looms for
weaving; whereby the same is more easily. and efficiently put, into, and out of,
operation. And secondly by the employment of means and parts for making the
pattern cylinder of the heald, operating mechanism, move perpendicularly, up and
down instead of moving in an oscillatory manner as heretofore, so as to render the
pegs used as the pattern surface less liable to breakages.
In order to clearly describe how the foregoing is accomplished we hereunto
append two sheets of drawings, illustrative thereof, bearing letters and figures, of
reference of which use is made in the following description.
"
Fig. 1 is a sectional plan and fig. 2 a sectional side elevation of a loom illustrating
the first part of our invention. Fig. 3. is a detail drawing of the picking stick
arrangement. Figs. 4 and 5 are side and sectional side elevations respectively of
the heald operating mechanism; while, figs. 6 and 7. are respectively the front
elevation and plan thereof.
In all the drawings only such portions are shewn as are necessary to illustrate
our invention.
Like parts in all the drawings are indicated, by like letters and figures of
reference.
The picking cones 1 and la are mounted in the usual manner, on the studs 2
and 2 which are fixed to the notched pieces '3.and.3a respectively.. The, said
notched pieces 3 and 3a being mounted loosely on the upright shafts 4 and ta, so
that the springs 5 and 5a will keep the said cones 1 and la in contact with their
respective picking tappits 6 and 6a.
Rigidly fixed to the shafts 4 and 4u are the swapes 7 and 7a upon which, by the
studs 8 and 8a are mounted loosely the catches 9 and 9a respectively... Each of
the said catches 9 and 9a being brouglit into gear or contact with the 'notch or

page_text: recess in their respective notched pieces 3 or 3a by the springs 10 or 10a, unless
prevented from so doing by the pieces 11 or 11a being in contact with projecting
piece b (fig. 2) which is fixed to the underside of each of the said catches 9 and 9a.
The pieces 11 and 11a are fixed in a suitable manner and position on the rod 12,
to which reciprocating motion of an intermittent kind, by the controlling or pattern
surface, is imparted; so that when the piece 11a is drawn by the said rod 12 to
allow the catch 9a to engage with its notched piece 3a, the piece 11 is made to
hold the catch 9 out of its notched piece 3.
The distance thus moved by the catch 9. from its notched piece 3 is made
sufficiently great is to allow the rod 12 to be moved so as to push the catch 9a
clear of the notched piece 3a, without letting the catch 9 engage with the notched
piece 3.
From the foregoing it will be seen that the picking mechanism may be put into
operation on either side of the loom, or out of operation altogether as may be
desired.
The intermittent reciprocating motion of the rod 12 is obtained, through the
lever 13, shaft 14, and lever 15, from either the heald operating mechanism or any
of the well known kind of controlling or pattern surface mechanisms, or if it is
required to keep the said rod 12 continuously alternating at regular intervals, as is
the case when the same is applied to a plain or one shuttle loom, any of the well
known cam or tappit arrangements (commonly styled scroll motions) may be
employed.
On the upper edge of the swape 7 (as also on 7a, as will easily be understood) is
formed a projection 16 in order to arrest in proper position the shaft 4 (or 4a)
when drawn by the spring 17, by the said projection 16 coming in contact with
the end frame A of the loom.
In order to facilitate the detachment or removal of the picking stick 18, the end
thereof is made open and the part 19 (fig. 3) is inserted and held in position by a
bolt 20 passing through it and the end of the picking stick 18, so as to make it more
rigid and to avoid danger whilst in action.
Respecting the second part of our invention, the side frame 21 of the heald
operating mechanismi (which is that well known as Hattersley's Positive Dobbie) is
made with the guide pieces or projections a a, so that the cylinder 22, which is
mounted on the lever arms 23 and 24, shall diverge, each way up or down, from
about midway of the circular path of motion of the said arms 23 and 24, the
amount of the said divergence being equal to the difference between the said
cylinder 22 moving perpendicularly and oscillating about the centre b.
To allow for the said divergence of the cylinder 22, in each of the lever arms 23
and 24 is made a slot (shewn in dotted lines fig. 6) for the reception of an anti-
friction bowl 26 (27) in which the end of the cylinder's shaft is mounted; and the
teeth of the gearing wheels 28, 29 and 30 (through which, from the revolving
shaft 31, nogging wheel 32, crown wheel 33, shaft 34 and bevil wheels 36 and 37,
the intermittent rotary motion of the cylinder 22 is imparted), are made deeper so
as not to come out of gear with each other.
To adjust the cylinder 22 so as to more certainly secure the perpendicularity of
the pegs c of the pattern surface, we rigidly mount on the outer end of the
cylinder's shaft, the star or adjusting-wheel 38 into contact with which is brought
the adjusting piece 39 by the spring 40, in the manner and with the result well
known.
The spring 40 is made of a suitable length in order to yield the distance moved
up and down by the cylinder 22, so that when the said cylinder 22 is in its lowest
position the spring 40 will have the least amount of power over it, consequently
the said spring 40 does not interfere to any great extent with the amount of
power required to turn the said cylinder 22, since the said act of turning takes
place at this time; and when the said cylinder is in its raised position the
spring 40 has its greatest amount of power over it which is desired at this point
of its motion.

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 combination of the upright shaft 4 (4a) with the notched piece 3 (3a),
spring 5 (5a), cone 1 (la), and the tappit 6 (6a) all arranged to operate in con-
nection with a loom substantially as herein set forth.
2. The combination of the swape 7 (7a), catch 9 (9a), spring 10 (10a) notched
piece 3 (3a) and spring 5 (5a) all used and arranged to operate in the manner and
for the purposes substantially as herein set forth.
3. The combination of the rod 12 and the pieces 11 and 11a with the catches
9 and 9a used and arranged to operate substantially as herein set forth.
4. The formation of the picking stick 18 as herein shewn and described, in
combination with the piece 19 and the bolt 20 substantially as herein specified.
5. In combination with the heald operating mechanism herein named, the
means employed for operating the perpendicular movement of the pattern cylinder
substantially as herein set forth.
6. In combination with a pattern cylinder having a perpendicularly reciprocating
movement, the piece 39 and the spring 40 for adjusting the same substantially as
herein specified.
RICHP L. HATTERSLEY.
JAMES HILL.