US40698A - Improvement in looms - Google Patents

Description

' lliviTnD STATES PATENT Trice.

BELA A. MANN, OF WEST MERIDEN, CONNECTICUT.

IMPROVEMENT IN Loolvis.

Specification forming part of Letters Patent N0. 40,698, dated November 24, 18673.

To all whom it may concern.-

Be itknown that I, BELA A. MANN, of West Meriden, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Jaoquard Looms 5 and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, figures, and letters of reference thereon, making part of this specification.

0f the said drawings,Figurel is aside elevation, havingfparts of the frame removed. Fig. 2 is an end elevation showing the pattern mechanism, &c. Fig. 3 is-a drawing ot' the crank and connecting rods detached from the machine. Fig. 4 shows aspring for forcing the hooks upon the driving-gate L. Fig. 5 showsthe needles S in detail for operating the hooks. Fig. 6 shows a hooked bar detached from the machine. 1

Similar letters of reference indicate like parts in all the drawings.

My invention relates to Jacquard loom; and it consists, first, in the employment of hooked bars, in combination with a card prism or pat-A tern apparatus for producing the shed; second, the employment, in combination with tl e hooks and a pattern mechanism, of gates or slides moving in opposite directions for operating the hooks; third, the arrangement, in combination with the hooks and slides, ofthe adjustable cranks, for driving the slides; fourth, the arrangement of the series of bell-cranks and their connections, in combination with the hooks, slides, and pattern mechanism for operating the harness.

To enable others skilled in the art to make and use my improvements, I will describe the construction and operation thereof.

The drawings, Fig. l, show a side elevation of my loom without any lathe, and with the frame part A A broken away, to show the working mechanism. The shaft B has proper journal-boxes at C and C, and is provided with a crank-wheel, D. 011 the other end of this shaft there is a wheel, E, on the back side of which is a plate, U, having a cam groove cut therein for operatin g the pattern mechanism through the rod J, and lever or arm M. 'lo the face of this wheel E there is bolted a slotted bar, F, into which is inserted the crankpin W, which, by means ofthe rod I-I, and its connecting-pin Y, works the upper gate ,o r slide, L. To the outer end ofthe crank-pin W is secured a slotted arm, G, provided with a crank-pin, fw, whichl connects the rod I at i' with the lower gate or slide, K, and gives it motion. The gates or slides L and K have V-shaped edges, and lit corresponding V- grooves in the vertical bars l, which are bolted to the cross-ties 4 and 5, as plainly shown in Fig. 2. Attached to the bars l are ears projecting outward, to which is bolted the crosstie 6, and to these ears is pivoted at l5 the arm-lever M, the rods 7 and 8 being cross-ties which connect with and hold a corresponding vertical arm of the lever M upon the opposite side. In the lower part of this vertical arm M is suspended by pivots let a square bar R, in Which are cnt longitudinal mortises for the needles s to pass through the pattern-cards,

and which is provided with conical spurs 9,

which enter corresponding holes, 9,in the cardprism to insure the proper position of the card-pattern for the needles s. On one end of this square bar is a pin-gear, l0, Fig. 2, which, by means ofthe ratchet-tin ger O, moves the bar It a quarter-revolution at each reciprocating movementof the arm or lever M. The hook-bars N Vare slotted longitudinally, and work upon a yfulcrum-pin, p, passing through ears on the'upper gate or slide, L, as plainly shown in Fig. l Both ends ot' each of these hook-'bars have a slit cut therein for thereception of the ends of the connecting-wires m and o, which are held therein by pins. To the cross-tie 6, springs t t are secured. Fig. 4, which rest upon the upper part ofthe hooks to force them upon the gate or slide, L. The upper end ofthe slide is beveled the shape of the hook 2, Fig. 6, and the lower slide, K, is also beveled through a slot near the lower end to conform to the shape of the. hook 3. On this lower gate is cast a projection, c', which is slotted for the connecting-wires o, which forces up the hooks by striking the lower ends thereofas the slide K travels.

The needles s, for operating the lower parts of the levers, are plainly shown in the drawing 5, and also in Fig. l. They are provided with small collars to retain them in the plate I). The harnesses a a are suspended by the wires h and i, which connect them to the bell-cranks c and b by the wire 7a above, and to @and f by the wire n below. There is a all the harness down.

set of bell-cranks, d, which connect by the wire l with the upper ends of the hooks N by the rods m, and also a set, g, which connect by rods o with the lower end ofthe hooks. These bell-cranks have their bearings upon rods Y and X passing through the frame, and are kept in position by collars and set-screws 412 and 13, as shown in Fig. 2.

Operation. The operation will be as follows: The noneperforated card being presented to the needles s, and the gates or slides Land K being open, the cranks G and W will stand in the position seen in Figs. 1 and 3, and motion being given the shaft in a forward direction, the hooks N, as the arm M travels,

vbe forced by the springs t upon the upper gate, L, and carried upward, thus reversing the movement of the bell-cranks and carrying In all the rest of the movements of the pattern mechanism, as the `shaft is revolved, the needles s, which do not pass through the holes in the card-prism into the square bar R, will release or'unhook the hooks N from thil upper gate, L, and the harness operated by such netdle and hook will be drawn upward, while those needles that do enter the. holes in the card-prism will allow the hooks N to remain upon the upper gate, land the harness operated by such needle will be drawn donn. `When theliooksN are released from the gate L. they are hooked to the gate K, and vice versa. Y

The pattern mechanism is operated by the cam-groove U, into which is inserted a pin, c, on the lower end of the rod J, and is held in place by the grooved bar V. The upper end ofthe rod is pivoted to the arm M at ze, and as the cam-wheel revolves the rod J is forced up and down, and the lever M rocked upon its t'ulcrum-pin l5, and the pattern mechanism is moved to and from the needles s. As the rod J is forced up, the horizontal arm of M is carried up, and the vertical arm and barltbrought in contact with the pins s, and as the lower arm ot the lever M is carried away from the pins s, the ratchet-finger O, which is pivoted to the part l", drops upon a pin, 11, Fig. 2, and gives the barl R a quarter-revolution, and presents a new card to the needles at each revolution of the shaft. This square bar is held in position by means of a at spring, Z, secured to the arm M, and which rests at its lower end upon the bar holding it for the needles. Thec'ards are linkedtogether and supported in a holder, T, as plainly shown. The cranks W and w are adjustable by means ot' the slotted arms Fand Gr, so as vary the travel ofthe gates L and K, and thereby regulate ,the shed for the passage of the shuttle. By

a pattern mechanism, substantially as described.

2. The employment, in combination with the hooksN and a pattern mechanism, of the slides L and K, moving in opposite directions for operating the hooks, substantially as described and specied.' v

3. The arrangement, in combination with' -the hoolebars N,of t-he adjustable cranks and W, for driving the slides L and K, substantially as described and specified.

. 4. The arrangement of the bell-cranks,in combinationwith the hooks N, slides Land K, and pattern mecl1anism,t'or operating the harnesses, substantially as described and set forth.

BELA A. MANN.

. Witnesses:

ORVILLE H. PLA'M, GEORGE A. FAY.

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