Year: 1888

page_text: Date of Application, 17th Apr., 1888
Complete Specification Left, 17th Jan., 1889
Complete Specification Accepted, 13th Apr.,
1889.
A communication to me from abroad by CLAUDIO SANZ and RAFAEL ECHEVERRIA,
both of Sevilla, in the Kingdom of Spain.
[, EDMUND EDWARDS, of the firm of Edwards and. Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane, in the County of Middlesex,
do hereby declare the nature of this invention to be as follows :-
:-
This invention relates to an improved device to be applied to ordinary looms used
for weaving bags of hemp or other material of the like kind in which the bottom and
two sides of the bag are closed, whilst the upper edge or mouth is left open.
It has for its object an improved device to be applied to the ordinary loom used,
by which the necessary parts of the loom can be thrown in or out of gear at the
right time, so that when the proper part of the loom for the purpose is thrown into
gear the two thicknesses of material which form the sides of the bag are woven
together, whilst when out of gear they are left separate, so that the complete bag is
formed in one process without subsequent sewing. The weaving parts of the loom
are of the ordinary kind and the invention relates only to a device by which the cams
which operate the particular parts referred to can be instantly and easily thrown in
or out of action when required for the purpose already explained.
A driving spindle revolves in suitable bearings and is set in motion by means of a
toothed wheel at one of its ends actuated by the loom. This spindle has two rings
or collars fixed upon it at suitable distances apart by transverse pins passing through
them.
Upon the shaft or spindle between these collars are fitted freely bosses each carrying
properly shaped cams by which when they revolve the required parts of the loom
are set in action.
Each of the cains has a hole preferably rectangular through it close to the boss
and parallel with the shaft, and into the hole is fitted a corresponding sliding bolt or
coupling piece passing through the cams and extending beyond but in close proximity

page_text: The
to the outer edge of a flange upon one of the fixed collars first described.
flange has a square or rectangular notch cut out of its circumference at one point,
and the projecting end of the bolt has a corresponding inwardly turned head, which
when the bolt is pressed in engages with the notch and is turned round by the
revolving collar, driving with it the cams upon the shaft. This latter is the normal
position of the bolts, and they are kept in their position by helical springs round
them pressing against a collar so that they are constantly forced inward.
In order to disengage the bolts, so as to stop the revolution of the cams and so
modify the action of the loom as described, the inner ends of the sliding bolts are
made somewhat bevilled at one side and a hinged lever is arranged turning upon a
spindle parallel with the shaft and having a wedge shaped piece at its outer end, so
that when the lever is turned down the point of the wedge enters between the
bevilled ends of the bolts and separates them as they revolve until their heads are
clear of the flanges upon the driving collars and the cams accordingly cease to
revolve.
When the lever is raised, the bolts are forced in by the springs until their heads
engage with the notches upon the driving collars by which they are then driven round
taking the cams with them.
The movements of the lever up and down may be effected automatically at the
proper times by the action of the loom itself.
EDWARDS & Co.,
Agents for the Applicant.

page_text: A communication to me from abroad by CLAUDIO SANZ and RAFAEL ECHEVERRIA,
both of Sevilla, in the Kingdom of Spain.
I, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane, in the County of Middlesex,
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 and accompanying drawing, (that is to say)
This invention relates to an improved device to be applied to ordinary looms used
for weaving bags of hemp or other material of the like kind in which the bottom
and two sides of the bag are closed, whilst the upper edge or mouth is left open.
It has for its object an improved device to be applied to the ordinary loom used, by
which the necessary parts of the loom can be thrown in or out of gear at the right
time, so that when the proper part of the loom for the purpose is thrown into gear
the two thicknesses of material which form the sides of the bag are woven together,
whilst when out of gear they are left separate, so that the complete bag is formed in
one process without subsequent sewing. The weaving parts of the loom are of the
ordinary kind and the invention relates only to a device by which the cams which
operate the particular parts referred to can be instantly and easily thrown in or out
of action when required, for the purpose already explained.
The accompanying drawing is in illustration of the invention, figure 1 shewing the
said cams when in gear and figure 2 when out of gear. Figures 3 and
views.
are end
A driving spindle a revolves in suitable bearings and is set in motion by means of
a toothed wheel at one of its ends actuated by the loom. This spindle has two rings
or collars b, c, fixed upon it at suitable distances apart by transverse pins passing
through them as shewn. Upon the shaft or spindle a between these collars are fitted
freely bosses m and n carrying properly shaped cams o, p, and q, r, by which when
they revolve the required parts of the loom are set in action, the cams acting on the
shedding or other mechanism for obtaining the required result.
Each of the cams has a hole preferably rectangular through it close to the boss
and parallel with the shaft, and into the hole is fitted a corresponding sliding bolt or
coupling piece and passing through the cams and extending beyond but in close
proximity to the outer edge of a flange upon one of the fixed collars b, c, first
described. The flange has a square or rectangular notch cut out of its circumference
at one point, and the projecting end of the bolt ( or ¹) has a corresponding inwardly
turned head (as shewn at te in figure 6), which when the bolt is pressed in engages
with the notch and is turned round by the revolving collar, driving with it the cams
upon the shaft. This latter is the normal position of the bolts, and they are kept in
this position by helical springs j and k round them pressing against collars & upon the
bolts so that the latter are constantly forced inward.

page_text: In order to disengage the bolts, so as to stop the revolution of the cams and so
modify the action of the loom as described, the inner ends of the sliding bolts h,
are made somewhat bevilled at one side and a hinged levert (shewn separately in
figure 5) is arranged turning upon a spindle parallel with the shaft a and having a
wedged shaped piece v at its outer end, so that when the lever is turned down the
point of the wedge enters between the bevilled ends of the bolts h, h, and separates
them as they revolve until their heads are clear of the flanges upon the driving
collars b and c and the cams accordingly cease to revolve.
-
When the lever t is raised; the bolts h, h¹, are forced in by the springs j, k, until
their heads engage with the notches upon the driving collars b and c, by which they
are then driven round taking the cams with them.
The movements of the lever up and down may be effected automatically at the
proper times by the action of the loom itself.
Having now particularly described and ascertained the nature of the said Invention,
and in what manner the same is to be performed I declare that I do not claim any
parts of the loom itself or any particular mechanism for throwing the weaving
mechanism in and out of gear, which may be varied as may be found advisable, but
what claim is :-
The combination of the revolving shaft a, fixed notched collars and C, sliding
bolts h,, having projecting heads w, and pressed inward by springs j, k, with the
moveable levert having the wedged shaped end v, substantially as and for the purpose
described and shewn.
Dail
1
T
1000