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more than 65 times 7 inches, or about 13 metres in breadth : but, the arrangement of the mechanism will not allow to give the machine so great a breadth : hitherto the machines have been confined 10 2} metres for the working part, carrying on this space 130 needles, that is to say, 65 above and 63 below, set at a distance of about 1.} inches apart (mettre á la distance d'environ 4 centimetres); this then is the maximum of the breadth of the patterns to be embroidered.
To embroider patterns of a larger size the number of needles must be diminished so as to allow of a greater distance between them: it would be necessary, for instance, to reduce them one-half, to produce patterns 3 inches (S centimetres) wide.
But, in diminishing the number of needles, we decrease the advantages of the machine; because, it requires as much time to work a carriage with 50 needles as one with 130.
Although the machine is limited in its width, it has the advantage of having no limit in its length or height; it may, for instance, embroider at the same time 130 ribbands of any length; it will sulfice to dispose these ribbands on the beams G, and to embroider all the height which the vertical motion of the frame allows; then the workman marks ihe place where he has left off, and stops the working of the machine for a moment, while he rolls on one of the beams G the embroidered part which he had executed, and brings before the needles the new stuff which is to be embroidered ; he makes the point of the pantograph rise or descend, according to the part last finished, whether above or below, the pattern on the table E (Fig. 1) being raised or lowered to correspond; and then continues to embroider from the mark which he had made before rolling the stuff on the beam.
It will be perceived, that the workman must not follow with the pantograph, the pattern which is on the board E, but must stop the point of that instrument on the point or little square of the design paper or pattern which the needle is going to prick, he carries it again and stops it on the point through which the needle should go or enter in returning, and so forth.
To facilitate this kind of reading, the pattern which is on the board E, is composed of straight lines, crossing each other at right angles, as in Fig. 70, (which see so that the workman has continually under his eye the pattern divided off into small squares, which he must follow with the point of the pantograph; should he happen to be interrupted and have neglected to mark the place where he left off, he must look at the embroidered stuff in the machine, to see what has been already embroidered and to find by comparison with the pattern on the table E, where he is to commence bis work again, in order to leave nothing undone and not to repeat twice the same thing.
INDEX TO PLATES 1 AND 2. ABCD, Fig. 2, The side of the FF, Figs 1, 2 and 3, Vertical
frame where the workman sits. posts of the frame which carA'B'C', Fig. 1, The opposite side ries the stuff. of the frame.
FF Figs. 1, 2 and 3, HorizonA", Fig. 1, Lower cross-bars tal sides of the same frame.
which connect the feet of the F", Figs. 1 and 3, Stand fixed two sides of the frame.
on the upper side F of the a, The six feet of the frame, frame and connected bran
(Fig. 2) on the pantograph axis pin to the pantograph. side.
f, Fourth angle of the paralleloa', The six feet of the opposite gram which forms the panto
side of the frame, (see Fig. 1). graph. a", Fig. 1, Knees which unite G, Figs. I, 2 and 3, Four rollers
the cross-bars A" to the verti- or wooden beams fixed on the cal posts of the frame.
vertical posts of the frame for B", Figs. 1 and 2, Handle of the
carrying the stuff. pantograph.
G', Figs. 3 and 7, Two rulers 6,5,6", Three of the angles of fixed on the same posts and the pantograph.
intended to maintain in the C,
Point of the side 6 b' on which same vertical plane, the stuff the point is fixed.
rolled on the beams G. C", Fig. 2, Point of the panto- &, Fig. 3, Ratchet wheels fixed graph.
at one of the ends of the rol. D', Figs, 1 and 2, Cross-bar in lers G.
the shape of a trough which g', Catches which hold the
unites the frame above. d, Fixed points on which the G' Stuff. pantograph turns.
g'', Fig. 1, Strings used to stretch E, Fig. 1, Board on which the the stuff sideways.
pattern to be embroidered is H, Guide-rods fixed to the under put.
side of the frame which carE', Support of the board E. ries the stuff. e, Rope attached by one end to h, Figs. 1 and 2, Curved arms
the side b c of the pantograph, which support the rods H. passing over a pulley, and hav- H, Figs. 1 and 3, Throated pul
ing a weight at the other end. leys in which the rods H slide. e', Iron rod to support the board n'h', Figs. 1 and 4, Flanges by E.
which the blocks of the pulE", Fig. 3, Sliding rule fixed on leys H' are gupported.
the side F of the frame. H", Large levers which support e", Figs. 1 and 2, Rod fixed on at one end the blocks of the
the cross-bar D" and sliding in pulley's Il' and at the other the sliding rule E".
counterpoises I (Fig. 2.)
h", Fig. 1, The two extremities l', Wheel-carriers, forked at the
of the forks of the levers H". two extremities to receive the I, Counterpoise of the lever H". axles of the small wheels L'. I', Fig. 2, Shaft on which are II, J, Figs. 1 and 2, Cog-wheels,
supported the levers H", fixed set on the front extremity of to answer for each other and the axles VI" and outside of so that the two sides of the the frame. frame which carries the stuti m', Fig. 1, Cog-wheel, set on the be supported and moved at the shaft M" inside the frame.
top with an equal force. VI" J' Two shafts turning in I', Figs. 1 and 2, The two sup- bearings fixed on the large ports of the extremities of the
posts AD, AD' and AC, A shaft I'.
C' of the frame; one of these i, Fig. 1, Two iron feet having shafts is shown in Fig. 1.
a vertical slit in which slides m' Sund-pin crossing the piece l', the under edge of the frame, and supporting the wheel L serving to maintain it in its which rolls on the rail K.
plane during its motions. m" Fig. 2, Piece supported also J, Fig. 2, Pulleys at each end of by the stud-pin, m' and to the frame.
which the endless chain is J' and J', Figs 1 and 2, Stands connected, (Fig. 2).
which support the pulley J. N, Figs. 1 and 2, Handle by j, Endless chain.
means of which the wheel 0 j' and j", Points to which the ,
Fig. 2, is turned, to move the extremities of the endless chain carriages forward or backward. are attached.
n,n', n", Bent lever supporting K, Figs. 1, 2 and 5, Rails for the the two cog-wheels and 0"
carriages; Fig. 5 represents and supported by the axis pin one of these rails, seen from
o, Fig. 2. above, with flanges k by whicho, Cross-bar (Fig. 2) connecting it is bolted to the upright posts the sides AC and A D of the B of the frame.
frame. K', Fig. 2, Cross pieces bolted to 0, Support or axis of the lever the two posts A Dand A Cand
n, n', n". supporting the extremity of O and O", Two cog-wheels the shaft P'.
gearing into each other, fixed k, Flange of the rails K.
to the points n' and n' of the L, Figs. 1, 2 and 6, Shaft or bent lever n, n', n" and moving
cylinder of the carriage, hav- with it (Fig. 2.) ing at its two extremities a P, Figs. 1 and 2, Two treadles. fange by which it is fastened p, Axis of the treadles P. to the wheel-carriers l' and P Pulleys fixed on the shaft P' having besides from distance and moving with it. to distance appendices q, q des- p' Ropes which connect the treatined to receive the large arms dles P to the pulleys P'. Q Q.
P" Shaft which carries the pul1, Flanges, through which the leys P.
axis of the shaft L is fixed to p" Piece fixed at the extremity the wheel-carriers l'.
of the shaft P'; it has teeth L', Small wheels which support on of its circumserence, and
the carriage on the rails K. the other part is prolonged and
has a stud-pin which goes V', Fig. 12, Needle of the full
u, Arm at the extremity of the Q, Q, Figs. 1, 2 and 6, Large shaft Y, and intended to make arms of cast iron, which
the shaft turn at the moment fixed on the shaft or cylinder when it leaves it.
L by means of the flange 9,9. 20', Stud-pin fixed to the frame, 9,9; Flange intended to support and against which the small the arms QQ.
arm w slides, Fig. 1). R, Fig. 1, Shaft supported at the 10", Two small arms fixed, one
' under part of the frame by on the upper shaft Y, the two bearings r'r'.
other on the under shati Y'; p Sector with teeth, supported they are connected by a wire,
on the extremity of the shaft so that the motion of ihe shalt R, and gearing into the pin- Y produces that of the shaft ion p'.
Y', (see middle of Fig. 1.) gol g', Bearings fixed on the frame X, X, Figs. 1 and 2, i'wo ver
and supporting the shaft R. tical rules with teeth sliding S, Figs. 1, 2 and 6, Prismatic against the arms Q Q.
rule supporting the pincers; it x, Sectors gearing with the teeth is fastened between two con- of the rules X and fixed on secutive arms Q Q by means the flat shaft U with which of the ears s' s'.
they turn, (Fig. 2.) s's' Ears to which the arms Q z', Stud-pins fixed at the bottom Q are bolted.
of the rules X, Figs. 1 and 2. T, Figs. 6, 8, 9 and 10, Under Y, Y', Figs. 1 and 2, Shafts sup jaw of the pincer.
ported by the arms Q and t, Screw intended to fasten it on turning freely. the prismatic rail.
y,'y', Small perpendicular armis T', Plate pierced by a hole or rods on the ends of shaft Y,
through which the needle goes Figs. 1 and 2.
into the pincer, (Fig. 11). y', Counterpoise of the arm or t' Spring intended to press down rod Y, Figs. 1 and 2.
the upper jaw of the pincer on Z Z, Arms fixed on the shaft R; the needle.
each being terminated by two U, Fig. 1, Flat shaft supported forks z z, Fig. 2, one at the by the extremity of the arms right, and the other at the left.
it is also shown in Figs. z, z', Forks which terminate the 6, 7 and 13.
arms Z Z, and which are inu, Fig. 6, A small fork piece tended to receive the stud-pins which supports
the axis of the r' of the toothed rules X X. shaft U.
No: 1, Horizontal section of the u', Key pins which keep the axis post A B, seen from above, and
of the shaft U in its place in also showing the thickness of the fork pieces u.
and the shape of the foot a. V, Upper jaw.
No. 2, Section of the rail K.
of a pin, the upper jaw of the front of the pinion p".