Improvements in connection with the Uprights of Jacquard Machines.
Year: 1892

page_text: Date of Application, 14th July, 1892-Accepted. 20th Aug.,
1892
COMPLETE SPECIFICATION.
Improvements in connection with the Uprights of Jacquard Machines.
I, ISAAC THOMIS, of 85 Kensington Street, Bradford, in the County of York,
Designer, 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 certain improvements in jacquard uprights suitable for
double lift machines, and has for its object the construction of the uprights and the
combination of each pair in such a manner that, a direct lift is given to the healds
or harness. when either upright of a pair is raised, and for any upright or set of
uprights to remain lifted without any change so long as may be required by the
pattern of the design; also by arranging the couplings between each pair of
uprights so as to be enabled to remove any upright from the machine without
taking the latter to pieces.
In describing my invention in detail reference is made to the accompanying
sheet of drawings in which
Fig. 1 represents a diagram of a pair of uprights shown in various positions.
Fig. 2 a similar view of a modified pair of uprights.
Fig. 3 an enlarged detailed elevation and plan of Fig. 1 showing how one upright
may embrace the other; and
Fig. 4 similar views of Fig. 2.
The reciprocating bars A and B. for raising and lowering the improved uprights C
and D. as well as the ordinary card cylinder for operating the needles N. are con-
structed and actuated in the usual manner, the long uprights C. are raised and
lowered by reciprocating bars A. and the short uprights D. by the lower recipro-
cating bars B.
A needle N. embraces each pair of uprights C and D. which are moved in accord-
ance with the cards on the cylinder as hitherto.
When a needle N. is moved in the direction of the arrow by a card on the
cylinder, the hooks at the top of the uprights will be moved clear of the recipro-
cating bars A and B. therefore the uprights C. and D. will remain down as shown,
supported by the bars E. attached to the ordinary grid plate F. but when the
needle is not operated by a card on the cylinder, one of the bars A or B. which
may be at the bottom portion of its stroke, will engage with the top hook of one of
the uprights and thereby raise the upright D. and the healds or harness attached
thereto by neck band G.
When. a reciprocating bar B. is allowed to engage with the top hook of an
upright D. the said upright and the healds or harness connected thereto by neck
band G. are raised a distance that the hook H. may engage with the fixed supporting
bar J and should the healds or harness and warp threads be required by the pattern
to remain up, the needle N. embracing the said uprights, is not operated by a card
at the next pick of the loom.
When the uprights are down and the reciprocating bar A. is allowed to engage
with the top hook of upright C. then both uprights C and D are raised, the latter,
a distance for the hook H. to engage with bar J. which is accomplished by the wire
forming the upright C. being bent in any suitable manner to embrace the wire of
the upright D. so that when the upright C. is lifted, the bent or looped portion of
the same at K. will slide up the inclined piece of upright. D. at L. by which the hook
of upright D. is moved clear of bar B. and by the horizontal piece at M. resting on
the bent or looped portion K. the upright D. is raised the necessary height for
the hook H. to engage with the bar J. where it will remain so long as the needle N.
is not operated in the direction of arrow, but should the pattern of the design

page_text: require the warp threads lowering, then a card on the cylinder will move the
needle, and spring the uprights C and D. between the top hook resting on a
reciprocating bar and the grid F. to such an extent that, the hook H. is sprung
clear of the bar J. thus allowing the reciprocating bar A or B. to lower same
upon the supporting bars E.
My object may be accomplished in a modified manner by an arrangement of
uprights such as is shown by Fig. 2 in which: A and B indicate the reciprocating
bars for raising and lowering the uprights C¹ and D'. The needles N' each
embracing a pair of uprights, are operated by a cylinder and cards in the ordinary
manner, so that should the hook at top of upright C' be allowed to engage with the
top reciprocating bar A' the upright will be raised to the height that the hook H'
may engage with the fixed bar J and hold the warp threads up as long as required
by the pattern, until the hook H¹ is liberated by the operation of needle N¹ in the
manner as before described.
The upright C¹ may also be raised by the bottom reciprocating bar B¹ engaging
with the top hook of upright D¹ the wire forming the upright being bent or con-
nected in any suitable manner at M' to embrace the upright C₁ so that on the
bent portion or connection coming in contact with the horizontal part at P. the
upright C is raised, and the top hook of C' moved clear of the reciprocating
bar A by the bar B¹ pressing against the curved swell at Q. on the upright C'.
By connecting the wires forming the uprights above the needles N. the upper
portion of the machine is free so that any upright can be removed from the
machine without taking the latter to picces.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim
is :-
1. In a Jacquard machine the method of raising and lowering the warp threads
by uprights connected in the manner substantially as shown and described.
2. In a Jacquard machine the method of raising and lowering in a loom the
warp threads connected by a neck band G to one of a pair of uprights coupled
together, substantially in the manner as shown and described.
3. In a Jacquard machine the method of connecting each pair of uprights sub-
stantially in the manner as shown and described so that when either upright is
raised the warp threads connected by a neck band G. to one of the uprights, are
raised also.
4. In a Jacquard machine the construction of the uprights so that the connections
between each pair may be effected above the needles N.
Dated this 12th day of July 1892.
JOHN WAUGH,
Agent.