Year: 1887

page_text: Date of Application, 1st June, 1887
Complete Left, 1st Mar., 1888
Complete Accepted, 6th Apr., 1888
We CHARLES HAHLO and CHARLES EDWARD LIEBREICH both of Bradford in
the County of York, Merchants and Machinists and THEOPHILUS HANSON of Bradford
aforesaid Mechanic do hereby declare the nature of this invention to be as follows :-
This invention relates to improved apparatus to be used in connection with the
pattern Card Barrel whereby the number of Cards required in weaving any pattern
may be largely reduced and for preventing damage to the pattern Cards when the
loom is reversed or moved back on its crank centres.
According to this our said Invention we employ three or more rows of holes in
each Card and Card barrel, the pattern pins are carried by two swinging arms pendent
from a shaft crossing the dobby-A bell crank lever, having one of its arms slotted, and
connected with a finger of one of the pendant arms, is mounted on a stud, on the
outside of the dobby-At the end of the other Arm of the bell crank is a small blade
spring which rests upon a pattern chain-The pattern chain receives motion through
the agency of a ratchet and catch, the latter being attached to the outer one of the
heald levers, this lever is under control of the outer one of the draw bars which is
specially employed for operating the heald lever and pattern chain-and as the latter
bring a smaller or a larger tappet under the spring of the bell crank, so will the hell
crank move more or less on its stud, thus the pendant arms are caused to move
pattern pegs from one line of holes in the cards to another or to ship from one to
third or more line of holes effecting a very large reduction in the number of pattern
lags indeed 10 Cards in combination with the movable pattern pins will produce
patterns requiring under the old system of lags several hundreds of pattern lags—
When the attendant permits the going part to move back on its cranks the cards are
often pierced by the pattern pins so making a hole where a "blank" should be and if
not detected producing faults in the weaving in addition to spoiling the Cards, to
prevent which I employ on the rod for working the rocking arms which operate the
Card barrel, a spiral spring the strap of the eccentric being connected with the rod
and spring so that if the pattern pins come on the blanks of the Cards (through the
reverse motion of the loom) the spring will give way and so case off the pressure of
the pins on the Cards and prevent the latter being punctured.
1000
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Pattern Mechanism for Looms.
We, CHARLES HAHLO, and CHARLES EDWARD LIEBREICH, both of Bradford in
the County of York Merchants and Machinists, and THEOPHILUS HANSON of Bradford
aforesaid, Mechanic 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 improved apparatus to be used in connection with the
pattern card barrel whereby the number of cards required in weaving any pattern
may be largely reduced, and for preventing damage to the pattern cards when the
loom is reversed or moved back on its crank centres.
According to this our said Invention, we employ three or more rows of holes in
each card and card barrel, the pattern pins are carried by two swinging arms pendent
from a shaft crossing the dobby.
A bell crank lever having one of its arms slotted and connected with a finger of
one of the pendant arms is mounted on a stud on the outside of the dobby.
At the other end, of the other arm of the bell crank, is a small blade spring, which
rests upon a pattern chain.
The pattern chain, receives motion, through the agency of a ratchet and catch, the
latter being attached, to the outer one of the heald levers, this lever is under control
of the outer one, of the draw bars, which is specially employed for operating the heald
lever, and pattern chain, and as the latter bring a smaller or a larger tappet, under the
spring of the bell crank, so will the bell crank move, more or less in its stud, thus
the pendant arms, are caused to move pattern pegs from one line of holes in the cards,
to another, or to skip, from one to third, or more line of holes, effecting a very large
reduction in the number of pattern lags, indeed 10 cards in combination with the
movable pattern pins will produce patterns requiring under the old system of lags
several hundreds of pattern lags.
When the attendant permits the going part, to move back on its cranks, the cards
are often pierced by the pattern pins so making a hole where a "blank" should be,
and if not detected producing faults in the weaving in addition to spoiling the cards;
to prevent which we employ on the rod for working the rocking arms which operate a
the card barrel a spiral spring the strap of the eccentric being connected with the
rod and spring so that if the pattern pins, come on the blanks of the cards, (through
the reverse motion of the loom) the spring will give way, and so ease off the pressure
of the pins on the cards, and prevent the latter being punctured.
Such being the nature and object of our said Invention, the following is a complete 3
description of same, reference being had to the accompanying Drawings.

page_text: Fig. 1 is a side elevation of shedding motion having our improvements applied
thereto.
Fig. 2 is a plan of Fig. 1.
Fig. 3 is a side elevation of the parts of our invention detached, in order to clearly
illustrate the connections and relative positions thereof.
Fig. 4 is a front elevation of the card barrel, and pattern peg operating mechanism
shewn side view in Figure 3.
Fig. 5 is an end elevation of detached part of Fig. 1.
Fig. 6 is a detail.
At 1 is the Trocking lever, operated by means of a rod and eccentric, from the
tappet shaft; 2 and 3 are rods connecting the knives 4 and 5, with the T lever 1, the
latter reciprocating the knives 4 and 5.
At 6-7 are the hooks of the draw bar 8, through which and the link 9 the heald
levers 10 receive their motion, and thereby effect the requisite movement of the healds.
The above are parts as ordinary, and are introduced, only as explanatory of our
invention, the parts and combination of which are as follows;
At 11 is a pawl or catch, attached loosely by bolt 12, to the lever 10, and adjustable
as to its length, by the slot and bolt 13, its operating end engages with the catch
wheel 14, which it moves one tooth at each movement of the lever 10. On the
stud 15 of the catch wheel 14, is a chain wheel 16, on which is the chain of various
sized tappets 17. Bearing on one of the tappets 17, is the end of a blade spring 18
fastened to end of a lever 19, free to rock on the fulcrum stud 20, and at other end of
lever 19, is a slot 21, through which projects the cranked end of a rod 22 (see Fig. 2)
other end of rod 22, is secured in the boss 23 of elbow 24, fast on the cross shaft 25,
(see Fig. 5 to which by set screws is fastened, the bosses 26, of the pendant arms 27,
the lower ends of which carry the pattern pins 28, in the bar 29, free to move or
swing on the pins 30.
On reference to the pattern chain 17, it will be seen it is composed of tappets of
varying lifts, and that as a higher or a lower tappet is brought under the spring 18,
so will the lever 19, be more or less moved on its fulcrum 20, consequently the effect
produced on 24 will be greater, or less, and so will the shaft 25, be more or less
rocked, moving the pendant arms 27, and pattern bar pegs 29, from holes 31 to 32,
or at one movement to skip (by higher tappet) from 31 to 33, and just as the tappet
chain, is composed of varied and mixed lifts of tappets, so will be the skipping and
ringing the changes, on the pattern cards or barrel 34, be affected and thereby a
limited number of cards will serve for the weaving of patterns heretofore requiring a
large number of cards.
So long as a blank in the cards 35 presents itself to the pins 28, the head of the
latter is forced against the under side of the draw bar 8, and the latter is lifted,
whereon the catches 6-7-or one of them become engaged with the draw bars 4-5-
or one of them, whereon the levers 10 and the healds will be operated.
For purpose of preventing the cards 35, being damaged or punctured by the pattern
pins 28, when the going part is moved back, we employ on the rod 36, for working
the rocking arms 37, which operate the card barrel 34, the spiral spring 38, and the
strap 39, of the eccentric 40, being connected with the rod and spring 38, so that if
the pattern pins 28, are brought forcibly on the cards 35, through the reverse motion
of the loom the spring 38 will be compressed, the lower end of the rod 36 slides
through the hole 41, and so eases "off" the pressure of the pins on the cards, and
prevent the latter being punctured.
Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is;
Firstly The pawl or catch 14 wheel 16 tappets 17 lever 19 for operating the

page_text: shaft 25, pendant arms 27 pattern pins 28 and barrel 34, all in combination for pur-
pose, and substantially as herein described.
Secondly-The general construction, arrangement, and combination of parts as
illustrated by Figure 3 of the annexed drawings for purposes herein set forth.
Thirdly We claim the rod 36 eccentric strap 39, spring 38 for operating the
arm 37 and card barrel 34, all the parts in combination, and as illustrated by Figures 1
and 6.