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to see what has been already embroidered and to find by comparison with the pattern on the table E, where he is to commence his 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

frame where the workman sits. A'B'C', Fig. 1, The opposite side

of the frame. A", Fig. 1, Lower cross-bars which connect the feet of the two sides of the frame.

a, The six feet of the frame. (Fig. 2) on the pantograph side.

a', The six feet of the opposite side of the frame, (see Fig. 1). a", Fig. 1, Knees which unite the cross-bars A" to the vertical posts of the frame.

B", Figs. 1 and 2, Handle of the pantograph.

b, b', b', Three of the angles of the pantograph.

c, Point of the side b b" on which the point is fixed.

C", Fig. 2, Point of the pantograph.

D", Figs, 1 and 2, Cross-bar in the shape of a trough which unites the frame above. d, Fixed points on which the pantograph turns.

E, Fig. 1, Board on which the pattern to be embroidered is put.

E', Support of the board E. e, Rope attached by one end to the side bc of the pantograph, passing over a pulley, and having a weight at the other end. e', Iron rod to support the board E.

E", Fig. 3, Sliding rule fixed on

the side F of the frame. e", Figs. 1 and 2, Rod fixed on the cross-bar D" and sliding in the sliding rule E".

FF, Figs 1, 2 and 3, Vertical posts of the frame which carries the stuff.

FF Figs. 1, 2 and 3, Horizontal sides of the same frame. F", Figs. 1 and 3, Stand fixed on the upper side F' of the frame and connected by an axis pin to the pantograph. f, Fourth angle of the parallelogram which forms the pantograph.

G, Figs. 1, 2 and 3, Four rollers or wooden beams fixed on the vertical posts of the frame for carrying the stuff.

G', Figs. 3 and 7, Two rulers

g,

g',

fixed on the same posts and intended to maintain in the same vertical plane, the stuff rolled on the beams G.

Fig. 3, Ratchet wheels fixed at one of the ends of the rollers G.

Catches which hold the wheels g. G" Stuff.

g", Fig. 1, Strings used to stretch the stuff sideways.

H, Guide-rods fixed to the under

side of the frame which carries the stuff.

h, Figs. 1 and 2, Curved arms

which support the rods H. H', Figs. 1 and 3, Throated pul

leys in which the rods H slide. h'h', Figs. 1 and 4, Flanges by

which the blocks of the pulleys H' are supported. H", Large levers which support at one end the blocks of the pulleys H and at the other counterpoises I (Fig. 2.)

h", Fig. 1, The two extremities | l', Wheel-carriers, forked at the

of the forks of the levers H". I, Counterpoise of the lever H". I, Fig. 2, Shaft on which are supported the levers H", fixed to answer for each other and so that the two sides of the frame which carries the stufï be supported and moved at the top with an equal force. I", Figs. 1 and 2, The two supports of the extremities of the shaft I.

i, Fig. 1, Two iron feet having a vertical slit in which slides the under edge of the frame, serving to maintain it in its plane during its motions. J, Fig. 2, Pulleys at each end of the frame.

J' and J', Figs 1 and 2, Stands which support the pulley J. j, Endless chain.

j' and j'', Points to which the extremities of the endless chain are attached.

K, Figs. 1, 2 and 5, Rails for the carriages; Fig. 5 represents one of these rails, seen from above, with flanges k by which it is bolted to the upright posts B of the frame.

K', Fig. 2, Cross pieces bolted to the two posts A D and A Cand supporting the extremity of the shaft P".

k, Flange of the rails K. L, Figs. 1, 2 and 6, Shaft or cylinder of the carriage, having at its two extremities a flange by which it is fastened to the wheel-carriers l' and having besides from distance to distance appendices q, q destined to receive the large arms Q Q.

7, Flanges, through which the axis of the shaft L is fixed to the wheel-carriers l'. L', Small wheels which support the carriage on the rails K.

two extremities to receive the axles of the small wheels L'. M, M, Figs. 1 and 2, Cog-wheels, set on the front extremity of the axles M" and outside of the frame.

m', Fig. 1, Cog-wheel, set on the shaft M" inside the frame. M" M" Two shafts turning in bearings fixed on the large posts AD, A D' and A C, A C' of the frame; one of these shafts is shown in Fig. 1. m' Stud-pin crossing the piece l', and supporting the wheel L which rolls on the rail K. m" Fig. 2, Piece supported also by the stud-pin, m' and to which the endless chain is connected, (Fig. 2).

N, Figs. 1 and 2, Handle by means of which the wheel O" Fig. 2, is turned, to move the carriages forward or backward. n, n', n", Bent lever supporting the two cog-wheels O' and O" and supported by the axis pin o, Fig. 2.

O, Cross-bar (Fig. 2) connecting the sides AC and A D of the frame.

o,

O'

P,

p,

Support or axis of the lever n, n', n'.

and O", Two cog-wheels gearing into each other, fixed to the points n' and n" of the bent lever n, n', n" and moving with it (Fig. 2.)

Figs. 1 and 2, Two treadles. Axis of the treadles P. P Pulleys fixed on the shaft P" and moving with it. p' Ropes which connect the treadles P to the pulleys P'. P" Shaft which carries the pulleys P'.

p" Piece fixed at the extremity

of the shaft P"; it has teeth on of its circumference, and the other part is prolonged and

has a stud-pin which goes | V', Fig. 12, Needle of the full through the forked extremity

of the lever no to make it move, Figs. 1 and 2. Q, Q, Figs. 1, 2 and 6, Large arms of cast iron, which are fixed on the shaft or cylinder L by means of the flange q, q. 7,7, Flange intended to support the arms QQ.

R, Fig. 1, Shaft supported at the under part of the frame by two bearings r' r'.

size, with the eye in the
middle.

w, Arm at the extremity of the
shaft Y, and intended to make
the shaft turn at the moment
when it leaves it.
w', Stud-pin fixed to the frame,
and against which the small
arm w slides, Fig. 1).
wo", Two small arms fixed, one
on the upper shaft Y, the
other on the under shaft Y';
they are connected by a wire,
so that the motion of the shaft
Y produces that of the shaft
Y', (see middle of Fig. 1.)
X, X, Figs. 1 and 2, Two ver-
tical rules with teeth sliding
against the arms Q Q.

r Sector with teeth, supported
on the extremity of the shaft
R, and gearing into the pin-
ion p".
r'r', Bearings fixed on the frame
and supporting the shaft R.
S, Figs. 1, 2 and 6, Prismatic
rule supporting the pincers; itz,
is fastened between two con-
secutive arms QQ by means
of the ears s' s'.

Sectors gearing with the teeth of the rules X and fixed on the flat shaft U with which they turn, (Fig. 2.)

s's' Ears to which the arms Qr', Stud-pins fixed at the bottom

Q are bolted.

T, Figs. 6, 8, 9 and 10, Under

jaw of the pincer.

t, Screw intended to fasten it on
the prismatic rail.
T', Plate pierced by a hole
through which the needle goes
into the pincer, (Fig. 11).
t' Spring intended to press down
the upper jaw of the pincer on
the needle.

U, Fig. 1, Flat shaft supported

by the extremity of the arms
QQ;
it is also shown in Figs.
6, 7 and 13.
u, Fig. 6, A small fork piece
which supports the axis of the
shaft U.

u', Key pins which keep the axis
of the shaft U in its place in
the fork pieces u.
V, Upper jaw.

v, Ear used to connect, by means
of a pin, the upper jaw of the
pincer with the under one,
(Fig. S).

of the rules X, Figs. 1 and 2. Y, Y', Figs. 1 and 2, Shafts sup ported by the arms Q and turning freely.

y,'y', Small perpendicular arms
or rods on the ends of shaft Y,
Figs. 1 and 2.

y', Counterpoise of the arm or
rod Y, Figs. 1 and 2.
Z Z, Arms fixed on the shaft R;
each being terminated by two
forks zz, Fig. 2, one at the
right, and the other at the left.
z, z', Forks which terminate the
arms Z Z, and which are in-
tended to receive the stud-pins
r' of the toothed rules X X.
No. 1, Horizontal section of the
post A B, seen from above, and
also showing the thickness of
and the shape of the foot a.
No. 2, Section of the rail K.
No. 3, A view in profile and in
front of the pinion p".

ARD UNIVERSITY LIBRARY

V 2 1987

Tec 1908-44-14

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