Improvements in Drop and Oircular Box Looms.
Year: 1891

page_text: Date of Application, 22nd Apr., 1891
Complete Specification Left, 22nd Jan., 1892-Accepted, 22nd Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Drop and Oircular Box Looms.
We CHARLES HAHLO, CHARLES EDWARD LIEBREICH, both of Mill Street
Bradford Machine Makers and Exporters and THEOPHILUS HANSON of Mill
Street aforesaid Manager, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object to effect by an improved construction,
combination and arrangement of mechanism a large reduction in the number of
pattern cards heretofore necessary for controlling and effecting the requisite
changes of the boxes especially when weaving long patterns or large designs.
According to this our invention we employ on the tappet shaft a strap eccentric
which by means of an upright rod imparts rocking motion to an arm carrying the
card cylinder and also operating a draw bar above which is a draw knife other end
of latter is attached to a bell crank or jack lever one arm of latter carries a push
catch engaging with a catch wheel on a stud, and fast to said wheel is a star wheel
carrying a chain of tappets over and bearing on latter is a blade spring attached
to one end of a crank lever. In the other arm of the lever last referred to is a
slot through which is a pin attached to end of a finger carried by its box on a
short shaft or pin passing through the framing of the apparatus and at other end of
the pin is a pendant arm similar to an inverted 1 in the cross bar of which are
three card pegs there being three or more holes and blanks in the width of the
card itself so that as the pegs come onto the cards (holes or blanks) so will the
draw bar engage with or miss the draw knife, if a hole the draw bar will catch
the draw knife and the jack lever will be moved and by the other pegs in the 1
other two levers are operated and by connections cause one or other of the
ordinary draw hooks for operating the boxes to come into action as ordinary and
whether drop or circular boxes.
As by the apparatus described the card pegs are permitted to drop vertically or
are removed forward through the swing of the it will be seen that a single card
can be employed so as to serve as holes or blanks not on one line only but two or
more lines and thus a limited number of cards will be available in the production
of patterns heretofore requiring a large number of cards.
Dated this 20th day of Anril 1891
WALTER BRIERLEY,
Central Chambers, Halifax, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Drop and Circular Box Looms.
We CHARLES HAHLO, CHARLES EDWARD LIEBREICH both of Mill Street
Bradford Machine Makers and Exporters and THEOPHILUS HANSON of Mill
Street aforesaid Manager do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer
tained in and by the following statement :-
This invention has for its object to effect by an improved construction
combination and arrangement of mechanism a large reduction in the number of
pattern cards heretofore necessary for controlling and effecting the requisite
changes of the boxes especially when weaving long patterns or large designs.
According to this our invention we employ preferably on the tappet shaft a
strap eccentric which by means of an upright rod imparts rocking motion of the .

page_text: arm carrying the card cylinder and a second eccentric operates a draw bar above
which is a draw knife other end of latter is attached a catch or ratchet wheel on a
stud and fast to said wheel is a star wheel carrying a chain of tappets over and
bearing on latter is a blade spring attached to one end of a crank lever. In the
other arm of the lever last referred to is a slot through which is a pin attached to
end of a finger carried by its boss on a short shaft or pin -passing through the
framing of the apparatus and at other end of the pin is a pendant arm similar to
the letter in the cross bar of which are say 3 card pegs there being three or
more holes and blanks in the width of the card itself, so that as the pegs come
onto the cards (holes or blanks) so will the draw knife engage with or miss the
draw bar, if a hole occurs the draw bar will catch the draw knife and the push
catch will be moved and so change the tappets and operate the lever and arm.
The
other pegs in the L arm control and operate 2 levers moving on the stud and by
connections cause one or other of the ordinary draw hooks for operating the boxes
to come into action as ordinary and whether applied to drop or circular boxes.
Such being the nature and object of our said invention the following is a
complete description of same reference being made to the accompanying drawing
forming a part of this Specification in which :-
Fig. 1. is a side elevation of our improved apparatus for purpose aforesaid.
Fig. 2. is an end elevation of Fig. 1.
Fig. 3. is a side elevation of levers and connections for operating the ordinary
draw hooks of circular or drop box looms.
Fig. 4 is a side elevation of draw knife and push catch drawn detached in order
to more clearly shew their construction.
Fig. 5 is a plan view of the levers for operating the draw hooks in either
circular or drop box looms.
Fig. 6 is a side elevation of our improved apparatus for purpose aforesaid having
two catches for turning the card cylinder and cards in a reverse direction, or first
in one direction and then in the other.
Fig. 7 is an end elevation of star wheel and double chain of tappets employed in
connection with the apparatus illustrated by Fig. 6.
According to this our said invention we employ preferably on the tappet shaft
of the loom a strap eccentric which by means of an upright rod 1 imparts a
rocking, or up and down motion to the arm 2 carrying the card cylinder 3, and a
second eccentric, also preferably on the tappet shaft, by a connecting rod 4, and
bell crank or other lever 5 and link 6 operates and gives a to and fro motion to
the draw bar 7 working in a slide in the frames of the apparatus. Above the
draw bar 7 is a draw knife 8 held in the "out" position by spring 8ª (see Fig. 4)
and to the other end of which is mounted the catch or pawl 9 engaging with the
teeth of a catch or ratchet wheel 10 carried on a stud 11 and cast to or fast on the
wheel 10 is a star wheel 12 carrying a chain of tappets 13 over and bearing on
the latter being a blade spring 14 attached to one end of a cranked lever 15 free
to move on its fulcrum stud 16. In the other arm 17 of the cranked lever 15 last
referred to, is a forked slot 18 in which is a pin attached to the end of the finger 19
carried by its boss on a short shaft or pin 20 passing through the framing of the
apparatus and at the other end of and mounted on the pin 20 is a pendent arm 21
somewhat similar to the letter L in the cross bar 22 of which are three or more
card pegs 23 there being two, three or more rows of holes and blanks in the width
of the cards 24 so that as the peg 23" comes onto the card 24 (holes or blanks) so
will the draw knife 8 and the push catch 9 be operated or remain inoperative. If
the peg 23" comes opposite a hole in the card 24 then the draw knife 8 will be
lowered until it comes in line with the draw bar 7 (see Fig. 3) and is thereby
operated, the push catch 9 moving the wheel 10 and star wheel 12 one tooth and so
changing the tappets 13 and operating the lever 15, 17-19 and arm 21 and so
moving the pins 23-23 laterally over another line of holes or blanks in the
cards 24. The remaining pegs 23 in the Larm 21 control and operate two levers
25, 25 moving or free to rock on the stud 26 and by connections or wires 27, 27,

page_text: operate and cause one or other of the ordinary draw hooks for operating
the boxes to come into action in the usual and well known manner whether
applied to "circular" or "drop box" looms. In order to ensure a practically
straight motion of the cross bar 22 a short stem 28 is cast or fixed thereto
and works through an
"eye "
or hole in a fixed part of the apparatus, a
spiral spring coiled around the stem 28 effects the return movement of the
crossbar 22. A swinging or pendent catch or pawl 29 is kept in contact
with one of the angles or teeth 35 of the card cylinder 3 so that the arm 2 and
cylinder 3 are lowered through the action of the first mentioned eccentric a quarter
revolution is given to the cylinder 3 and another card 24 is brought into position
under the pegs 23, 23*.
When it is desired to turn the card cylinder 3 and cards 24 first in one direction
and then in a reverse direction, and so by use of few cards get the extended range
for long patterns we employ (see Fig. 6) 2 pendent levers 29, 29, connected
together by link 30 and to the lower end of the lever 31 by link or rod 32, the
lever 31, being free to rock on the stud 16, has a blade spring 14° attached to it
such blade spring 14ª being operated upon by one of the chain of tappets 13* (see
Fig. 7) so that as indicated by the tappets 13 one or other of the pendent
arms 29 will operate and turn the card cylinder 3 in either direction. The hook or
catch 29 of one of the pendent arm 29 is mounted on a pin or stud so as to be
free to move slightly in an upward direction and so allow of the free passage of
the card cylinder 3. At 30 is a spring for keeping the spring 14* in contact
with the chain of tappets 13*.
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 parts 8, 9, 10, 13, 15, 17, 19, 21 and 22 all in combination, and as
herein described, and substantially as illustrated by Sheets 1 and 2 of the annexed
drawings.
2nd. The combination of parts comprised in Claim 1st together with an
additional catch 29 and links, lever, and tappets for operating the two catches for
purpose set forth, and as herein described and fully illustrated by Fig. 6 of the
annexed drawings.
Dated this 21st day of Janua. 1892.
CHARLES HAHLO.
CHARLES EDWARD LIEBREICH.
THEOPHILUS HANSON.
By their Agent, Walter Brierley,
Central Chambers, Central Street, Halifax.