Year: 1887

page_text: Date of Application, 23rd Nov., 1887
Complete Specification Left, 22nd Aug.. 1888
Complete Specification Accepted, 28th Sept., 1888
We CHARLES HAHLO and CHARLES EDWARD LIEBREICH, Machine Makers, Harris
Street, Bradford, in the County of York, and THEOPHILUS HANSON of Harris Street,
Bradford aforesaid Foreman Mechanic, do hereby declare the nature of this invention
to be as follows:-
This invention has for its object improvements of aforesaid apparatus whereby the
working parts are reduced and simplified. The action of the apparatus for operating
the pattern mechanism and the box changing mechanism are immediately arrested on
absence of weft and when the loom stops, the number of the shuttle cell and the
colour of the weft of the pick last made are indicated, whereby search for the last pick
is obviated. There is also provided appliances by use of which the attendant can
readily raise or drop the boxes so as to bring any shuttle cell in line with the race
without moving other parts of the loom. The skipping from cell to cell as also the
number or range of cells employed can be changed and varied as desired. These
objects we attain by an improved construction, combination and arrangement of
appliances or mechanism comprising parts as follows.
For effecting the change of box we employ a chain of tappets carried on chain
wheels forming part of a long collar to which is attached a disc having a number of
projecting pins. On the tappets rests a lever having its fulcrum at one end, its other
end is by a vertical rod connected with the shuttle box lever, counterbalanced and
fulcrumed as ordinary, on one end of which is carried the spear or shuttle box rod
and shuttle box. The studded disc and pattern chain are moved by means of a vertical
rod connected with a horizontal and broken backed lever operated by a tappet on the
tappet shaft so that at each revolution of the tappet, the lever and recessed rod will
make the necessary movement for engaging with a stud on the disc thereby to turn
the pattern chain and move the shuttle box one or more cells according to the
formation of the tappet then under the tappet lever. The appliance for controlling
and determining when the recessed rod shall engage with the disc and cause a change
of box, consists of a tappet on the tappet shaft which gives a rising and falling motion

page_text: to a vertical slide piece working through a guide, the upper end of the slide piece
carries the pattern barrel and pattern cards or other pattern mechanism above which
is a pin fixed in one end of a bell crank lever, the end of the other arm of the bell
crank is provided with two pins or runners which clip or enclose between them the
recessed rod for operating the stud disc, so that as the pattern cards present holes and
blanks to the pin in the bell crank lever, so will the latter be worked that its clip end
will move the recessed rod into or out of position for engaging with and operating
the stud wheel and tappet chain. In front of the loom and near to the end of the
tappet lever is an indexed plate on which the numbers of the cells composing the
shuttle box and the colours of the weft in the several shuttles are marked, and on
the end of the tappet lever is a finger or pointer.
The tappets correspond with the numbers so that each movement of the tappet
lever its pointer will be opposite the number on the indicating plate corresponding to
the number of tappet then operating and when the loom stops there is always thus
indication of the number of box and colour of weft of the pick last made.
The pattern barrel and cards are turned by engaging on their downward movement
with a catch and catch wheel. The catch is connected by a link and lever with the
stop rod and stopping mechanism of the loom so that when the loom knocks off
through absence of weft, the catch is withdrawn out of line with its catch wheel, the
motion of the pattern barrel, bell cranked lever, recessed rod are arrested, consequently
the tappet chain and box boss are not further moved until the loom is re-started.
For purpose of rising and lowering the boxes when the loom is at rest there is
attached to the tappet chain wheels or to a boss or collar connected therewith a catch
wheel and on the stud supporting the pattern chain wheels is mounted loosely a hand
lever having a side catch which engages with the catch wheel just referred to so that
the lever and catch can be employed for turning the pattern chain wheels and pattern
chain until the required cell is brought lineable with the race and will be seen that
the particular order and the extent of movement of the box is dependent on the form
and variation in the tappets so that the box may be moved or skipped from cell one
to six or higher number of cells, no alteration being necessary in the other parts of
the mechanism.
Dated this 22nd day of November 1887.

page_text: Improvements in Drop Box Looms.
We CHARLES HAHLO, CHARLES EDWARD LIEBREICH, Machine Makers and
THEOPHILUS HANSON, Foreman Mechanic, all of Harris Street Bradford in the
County of York, 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 has for its object, improvements of aforesaid apparatus whereby the
working parts are reduced and simplified. The action of the apparatus for operating
the pattern mechanism and the box changing mechanism are immediately arrested on
absence of weft, and when the loom stops, the number of the shuttle cell and the
color of the weft of the pick last made are indicated, whereby search for the last pick
is obviated. There is also provided appliances, by use of which the attendant can
readily raise or drop the boxes so as to bring any shuttle cell in line with the race,
without moving other parts of the loom. The skipping from cell to cell, as also the
number, or range of cells employed can be changed and varied as desired and to
prevent vibration of the boxes and to ensure the latter being brought to a dead stop
when the cell containing the shuttle next to be picked is lineable with the race.
These objects we attain by an improved construction, combination, and arrangement
of appliances or mechanism as follows, and as illustrated by the annexed drawings
in which
Fig. 1 is an end elevation of the improved mechanism applied to a shuttle box
having cells or compartments for six shuttles.
Fig. 2 is a front view of Fig. 1.
Fig. 3 is a plan view of part of Figs. 1 and 2.
Fig. 4 is an elevation of a detail of Fig. 1.
Fig. 5 is a plan of part of the box lever steadying and holding apparatus detached
so as to shew construction clearly.
Fig. 6 is an elevation partly in section of Fig. 5.
At 1 is a chain of tappets carried on chain wheels 2-3 forming part of a long
collar to which is attached a disc 4 (see fig. 3) having a number of projecting pins 5.
On the tappets rests a lever 6 having its fulcrum 7 at one end, its other end is by a
vertical rod 8 connected with the shuttle box lever 9 counterbalanced and fulcrumed
at 10 as ordinary, on one end of which lever is carried the spear or shuttle box rod 11
and shuttle box 12. The studded disc 4 and pattern chain 1 are moved by means of
a vertical rod 13 connected with a horizontal and broken backed lever 14 hinged
at 14 and held in position by the spring 14° operated by a tappet 15 on the tappet
shaft 16 so that at each revolution of the tappet 15 the lever and catch rod 13 will make
the necessary movement for engaging with a stud on the disc 4 thereby to turn the
pattern chain
and move the shuttle box 12 one or more cells according to the
formation of the tappet link then under the tappet lever 6. The appliance for con-
trolling and determining when the catch rod 13 shall engage with the disc 4 and

page_text: pin 5, and cause a change of box, consists of a tappet 18 on the tappet shaft 16 which
gives a rising and falling motion to a vertical slide piece 19. (see Fig. 4) working
through a guide 20 the upper end of the slide piece carries the pattern barrel 21, and
pattern cards 22 or other pattern mechanism above which is a pin 23 (see Fig. 1)
fixed in one end of a bell crank lever 24, the end of the other arm of the bell
crank 26 is provided with two pins or runners 27 which clip or enclose between them
the catch rod 13 for operating the stud disc 4 so that as the pattern cards 22 present
holes or blanks to the pins 23 in the bell crank lever 24 so will the latter be worked
that its clipped end 27 will move the catch rod 13 into or out of position for engaging
with and operating the stud disc 4 and tappet chain 1. In front of the loom and near
to the end of the tappet lever 6 is an indexed plate 28 on which the number of the
cells 12 composing the shuttle box, and the colors of the weft in the several shuttles
are marked, and on the end of the tappet lever 6 is a finger or pointer 30.
The tappets 1 correspond with the numbers, so that each movement of the tappet
lever 6 its pointer 30 will be opposite the number on the indicating plate corresponding
to the height of tappet then operating, and when the loom stops, there is always this
indication of the number of cell, and color of weft of the pick last made, or which
should have been made.
The pattern barrel 21 and cards 22 are turned by engaging on their downward
movement with a catch 32 (see Fig. 1) and catch wheel 33. The catch 32 is con-
nected by a link 34 and levers 35, 36 with the rod 37 or ordinary stopping mechanism
of the loom so that when the loom knocks off through absence of weft the catch 32
is withdrawn by the finger 34 which is attached to the lever 35 out of line with its
catch wheel 33, the motion of the pattern barrel 21, bell cranked lever 24 catch
rod 13 are arrested, consequently the tappet chain 1 and disc 5 are not further
moved until the loom is agair supplied with weft and restarted.
For purpose of raising and lowering the boxes 12 when the loom is at rest there
is attached to the tappet chain wheel 2 or to a boss or collar connected therewith, a
catch wheel 38, and the stud supporting the pattern chain wheels 2-3 is mounted
loosely a hand lever 39 having a side catch 40 which engages with the catch wheel 38
so that the lever 39 and catch 40 can be employed for turning the pattern chain
wheels 2-3 and pattern chain 1 until the required cell 12 is brought lineable with the
race and it will be seen that the particular order and the extent of movement of the
box is dependent on the form and variation of height in the tappets 1 so that the box
may be moved or skipped from cell 1 to six or higher number of cells according to
the lift of the tappets employed, no alteration being necessary in the other parts of
the mechanism.
For preventing vibration of the shuttle box, and steadying the same when the
required cell has been been brought into line with the shuttles race we affix on the
rod 8 an adjustable boss 44, from which extends the arm 46 provided with holes
through one of which is passed the hooked end of the pendant rod 45, the lower end
of, the latter rod terminates in a clip or fork 48 embracing the bent or curved lever 42
the fulcrum of which is the stud 10. The lever 42 extends towards the shuttle box 12
and is curved or bent over the main or box lever 9 (see Fig. 5.) there being an
adjusting screw 41 in end of lever 42 which is set that its end bears upon the upper
edge of the lever 9 the lesser lever 42 being free, by moving on its fulcrum 10, to
follow the lever 9 but jumping, or vibration of the latter is prevented by the bearing
of the screw 41 thereon as described.
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. In change shuttle box mechanism; the sliding bar 19 through the movement
of which the cards operate by the pin 23 the lever 24 the ends 27 of latter, controlling
the rod 13 and by which the disc 4 is moved and another tappet is thereby brought
under the lever 6 and a change of shuttle is effected, all the parts in combination,
and arranged as herein described. and illustrated.

page_text: 2. The rods 37, levers 36, 35, whereby when the weft breaks or is absent the
finger 34 pulls back the hook 32 out of contact with the rachet wheel 33 thus
suspending the action of the cards the lever 6 and rendering the change box
mechanism inoperative until the loom is restarted.
3. The lever 6 and its pointer 30 in combination with the indicating appliance
such as 28 for indicating the color of weft required in each cell, according to
the pattern or design being woven, and for indicating the color of weft last
picked or due.
Dated this 1st day of August 1000.
CHARLES HAHLO.
CHARLES EDWARD LIEBREICH.
THEOPHILUS HANSON.
By their Agent,
Walter Brierley,
Town Hall Buildings, Halifax.