Improvements in Shuttle-checking Apparatus Employed in Looms for Weaving
Year: 1894

page_text: Date of Application, 8th May, 1894
Complete Specification Left, 8th Feb., 1895-Accepted, 9th Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in Shuttle-checking Apparatus Employed in Looms
for Weaving.
We, SAMUEL HOPKINSON, of 1 Samuel Street, Preston, in the County of
Lancaster, Slay Maker, THOMAS LEACH, of 131 Lancaster Road, in the same
town, Slay Maker, and JOHN KAY, of 260 Newhal! Lane, in the same town,
Overlooker, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to improvements in shuttle-checking apparatus employed
in looms for weaving. In carrying out the said invention we remove or cut away
the lower half of the ordinary back board of the shuttle box including the usual
swell and spring piece and in the space so afforded is placed a long wedge-like
block preferably of wood although if desired it may be of metal or a combination
of the two.
At the back of the fly plate is arranged a platform flush or level with
Near each end
the surface of the said fly plate upon which the long block rests.
of the platform are notches or recesses against whose inner edges and the back of
the back board cross-bars (answering as stops) fastened on the back of the long
block are held by the pressure of a curved flat back spring centrally mounted or
held on a bracket or arm secured to the slay bottom. The said bracket is provided
with a regulating screw for increasing or decreasing the pressure of the back spring
as required. The narrow end of the long wedge-like block-that is to say at that
end nearest to the reed-is protected by a curved metal nosing piece which projects
downwardly the projecting part resting against the end of the platform and acting
as a kind of fulcrum. The action of the apparatus as above described is as
follows: As the shuttle enters the shuttle box the narrow end of the long block
is pressed against its end of the back spring and as the shuttle passes completely
into the shuttle box the thick end of the block is gradually pressed back the
action of the spring simultaneously on the back of the narrow and thick ends of
the block affording an equally distributed pressure on the whole length of the
shuttle.
Improvements in Shuttle-checking Apparatus Employed in Looms
for Weaving.
We, SAMUEL HOPKINSON, of 1, Samuel Street, Preston, in the County of
Lancaster, Slay Maker, THOMAS LEACH, of 131 Lancaster Road, in the same
town, Slay Maker, and JOHN KAY, of 260, Newhall Lane, in the same town,
Overlooker 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 improvements in shuttle-checking apparatus employed
in looms for weaving. In carrying out the said invention we remove or cut away
the lower half of the ordinary back board of the shuttle box including the usi

page_text: swell and spring piece and in the space so afforded is placed a long wedge-like
block preferably of wood although if desired it may be of metal or a combination
of the two. At the back of the fly plate is arranged a platform flush or level with
the surface of the said fly plate upon which the long block rests. Near each end
of the platform are notches or recesses against whose inner edges and the back of
the back board cross-bars (answering as stops) fastened on the back of the long
block are held by the pressure of a curved flat back spring centrally mounted or
held on a bracket or arm secured to the slay bottom. The said bracket is provided
with a regulating screw for increasing or decreasing the pressure of the back spring
as required. The narrow end of the long wedge-like block-that is to say at that
end nearest to the reed-is protected by a curved metal nosing piece which projects
downwardly the projecting part resting against the end of the platform and acting
as a kind of fulcrum. The action of the apparatus as above described is as
follows: As the shuttle enters the shuttle box the narrow end of the long block
is pressed against its end of the back spring and as the shuttle passes completely
into the shuttle box the thick end of the block is gradually pressed back the
action of the spring simultaneously on the back of the narrow and thick ends of
the block affording an equally distributed pressure on the whole length of the
shuttle.
In the accompanying drawings Fig. 1 is a back view and Fig. 2 a plan view
shewing the construction and arrangement of our improved shuttle-checking
apparatus as above described.
W
a is the upper part of the ordinary back board of a loom shuttle box the long
edge-like block or resistance piece arranged within the opening c. d is the fly
plate e e are cross-bars fastened to the back of the long block b (answering as
stops) is the curved flat back spring centraily mounted on the bracket or arm
and the screw for regulating the pressure of the spring f. i is the curved metal
nosing piece on the narrow end of the long block b.
Figs. 3 and 4 are respectively back and plan views in which two back springs f
are employed instead of only one as in the preceding figures.
Figs. 5 and 6 are also back and plan views respectively of a modification of our
improved apparatus in which the long block is in two parts bb hinged at their
adjoining extremities to a fixed plate j so that the two parts and banay act
independently of each other as indicated by the broken lines at Fig. 6. By this
arrangement the narrow or short end b' of the long block performs the functions of
the ordinary "wing."
At Figs. 3, 4, 5, and 6 is shewn an adjustable screw and lock nut device for
regulating the distance to which the thick end of the wedge-like block may
project through the back-board into the shuttle box-k being a fixed bracket
carrying the stationary screw or pin and m a slotted plate or finger fastened to
the back of the block and n the regulating screw.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :
In shuttle-checking apparatus of looms for weaving the use or employment of a
long block or resistance piece such as extending practically the whole length of
the shuttle box and acted upon by a back spring or springs the said parts being
arranged and operating substantially as herein described and shewn in the
drawings.