Year: 1898

page_text: Date of Application, 28th June, 1898
Complete Specification Left, 17th Mar., 1899-Accepted, 24th June, 1899
THOMAS BLACKHURST, 3, London Terrace, Deepdale Road, Preston, Cotton Mill
Manager, WILLIAM WILDING GALLOWAY, Cotton Spinner & Manufacturer, Yard
Works, Preston, do hereby declare the nature of this invention to be as follows:-
This invention relates to looms for weaving, known as dropboxes, and consists
of one or more wheels, free to turn on a stud fixed to the loom side, the said
wheel or wheels, carry tappet projections or cam grooves, and are capable of
being turned a portion of a revolution, for each change of the shuttle-boxes, and
to this end are provided with knotches or teeth, to be engaged by oscillating
racks or hooks, (controlled by an ordinary pattern chain). The tappet projections
or cam-grooves, are caused to act through suitable connections, on a swing lever,
mounted on a stud, fixed in the opposite end of the ordinary foot lever, to that
carrying the sword of the boxes, the ordinary foot lever is provided with a special
modification or bend for the swing lever stud, and also with an adjustable fulcrum,
by means of which together with the swing lever, any number of shuttleboxes
from one to four, may be operated at will by the aid of the pattern chain, acting
through selectors of a novel kind; by means of which we are enabled, to select the
hooks or racks required to move the tappet wheels, without oscilating the pattern
chain barrel, or selectors, as heretofore, the selectors consist of a lever for each
tappet wheel, of any convenient form, mounted so that one part of the lever,
with a suitable terminal, abuts on the pattern chain, and another part on the teeth
or knotches of the tappet wheels, so that when the hooks or racks come in position
for selection, they can push the levers away from the teeth or knotches, and fall
in gear with the tappet wheels, if there be a hole in the pattern chain, but if
there be a blank, the hooks or racks are kept clear of the knotches or teeth in the
tappet wheels, when more than foure shuttleboxes are to be operated, the above
described arrangements are duplicated, and made to act on the shuttleboxes in
duplicate, by means of a jointed chain, attached to the duplicate foot levers, and
supporting a pully connection, communicating with the sword of the shuttleboxes.
1912 1000
Dropbox mechanism for rower Looms.
THOMAS BLACKHURST, Weaving Manager, 3, London Terrace, Deepdale Road,
Preston, and WILLIAM WILDING GALLOWAY, Cotton Spinner & Manufacturer, The
Willows, Preston, 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 looms for weaving, known as dropboxes, and consists

page_text: of one or more wheels, free to turn on a stud A Fig. 1, having one end fixed in
the loom fraim A2, and the other end, supported by the pillar P, Fig. 3, the
wheel or wheels carry tappet projections or cam grooves, C, and are capable of
being turned a portion of a revolution, for each change of the shuttleboxes M,
and to this end, are provided with knotches or teeth, shewn on the reverse of the
cam grooves at D, Fig. 2, the said teeth are engaged by oscillating racks or
hooks E, receiveing motion, from the low shaft of the loom, by rod and crank F,
and controled by selectors G, G2, and an ordinary pattern chain H, the cam
grooves, or tappet projections, 'act. through the antifriction roller J1, Fig. 1,
and the connecting rod J, on a swing lever K Fig. 3. The said lever, has two
holes K1, K2, by either of which, it may be mounted on a stud, fixed in a
special modification or bend L, Fig. 3, in the end of the ordinary foot lever L,
opposite to that which carries the sword of the shuttleboxes, the foot lever, is
provided with an adjustable fulcrum N, by means of which, together with a
proper adjustment of the swing lever, any number of shuttleboxes from one to
four, may be operated in any required order, if only two shuttleboxes be required
to work, then, by arranging the pattern chain, so that only one of the tappet
wheels, say B Fig. 3, is acted upon by the oscillating hooks, then only two
shuttleboxes would be called into action, if both of the wheels B, B1, are arranged
for by the pattern chain, then three of the shuttleboxes, could be worked in any
required order, further, if four shuttleboxes be required, then by a suitable adjust-
ment of the foot lever, by means of the moveable fulcrum provided, and by
mounting the swing lever by the hole K 2, so that one end of the said lever, would
move the shuttleboxes, the space of two boxes at each movement, while the other
end would represent one box, at each movement as before, when acted upon by
the tappet wheels, then, four shuttleboxes could be operated in any desired order,
by arranging the pattern chain, and order of working the shuttleboxes, after a
well known manner. By our invention, the selectors above referred to, are not
required to oscillate, or to have the pattern chain barrel oscillated as heretofore,
our selectors, in there normal position, are mounted with the end which carries
the needle terminal G 2, Fig. 2, sufficently clear of the pattern chain barrel, to
allow it to revolve without touching it, the selection of the hooks which move
the tappet wheels, is brought about by the spiral springs E, which keep the
hooks against the guide fins I, with sufficente pressur, to cause the bent end
of the selector to recede, if ther be a hole in the pattern chain, to such an
extent, as to allow the hooks to fall in gear with the tooth of the tappet wheel,
as shewn at G3, but if there be a blank in the pattern chain, the needle G2,
acting on the pattern will keep the bent end of the selector sufficently near
the tooth, for the hook to slide on the bent end, as shewn by the doted lines, the
hooks being kept clear of the tooth and no action taking place in this case, the
wheels, being kept in position, and prevented from overrunning the hooks, by
the friction breaks 0, when more than four shuttleboxes are to be operated, the
above described arrangements are duplicated, and made to act on the shuttle-
boxes in duplicate, by means of a jointed chain, attached to the duplicate foot
levers, and supporting a pulley connection, communicating with the sword of the
shuttleboxes.
In refering to the figurs.
Fig. 1, is an end view.
Fig. 2, is another end view, with one of the tappet wheels, removed.
Fig. 3, is a view from the back of loom.
Having now particularly decoribod
and ascontained the nature of 41
1

page_text: 2nd. The swing lever, or its equivalent, communicating with a foot lever, for
the purpose shewn and described.
3rd. A foot lever for operating the shuttleboxes in power-looms, with its
adjustable fulcrum, and requisite connections, as shewn and described.
4th. The combination of parts, constituting the apparatus described, with
reference to Fig. 1, 2, & 3, of the drawings, for the purpose specified.
Dated 16th day of March 1899.
THOMAS BLACKHURST.
WILLIAM WILDING GALLOWAY.