US918430A - Shuttle-box-operating mechanism for looms. - Google Patents

Description

- G. M.- FOSTER. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS. 'APPLIOATION FILED MAR.18, 1908.

Patented Apr. 13, 1909.

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G. M. FOSTER. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS. APPLICATION FILED MAR. 18, 1908.

918,430. Patented Apr. 13, 1909.

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UNITED STATES PATENT FFTCE.

GEORGE M. FOSTER, 0F MANCHESTER, NEW HAMPSHIRE, ASSIGNOR OF ONE-THIRD TO p WILLIAM PARKER STE-AW, OF MANCHESTER, NEW HAMPSHIRE.

Specification of Letters Patent.

' Patented April 13, 1909.

Application filed March 18, 1908. Serial No. 421,849.

To all whom it may concern:

Be it known that I, GEORGE M. F os'rnn, a citizen of the United States, and resident of Manchester, county of l-lillsboro, State of New Hampshire, have invented an Improvement in Shuttle-Box-Dperating Mechanism for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like numerals on the drawing representing like parts.

This invention relates to looms provided withshifting shuttle-boxes and wherein two or more shuttles are used, and it has for its object the production of improved mechanism for operating the shuttle-box to bring a particular one of the various cells thereof into active position with relation to the raceplate of the lay. The shuttle-boxes are mounted on a lilting rod, and the longitudinal movement of such rod, imparted by the so-called box-motion, raises and lowers the boxes to bring the desired cell into active osition, the box-motion including a leverike member or transmitter which is mounted to rock about a variable or shifting fulcrum. By shifting the fulcrum in various ways the amount/oi longitudinal movement imparted to the lifting rod is regulated, in order to move the shuttle-box far enough to bring the desired; shuttle into operation.

My present invention has for its object the production of novel mechanism for ellecting the variable movement of the lifting rod, the various novel features 01' the invention being fully described in the subjoined specification and particularly pointed out in the following claims. I

Figure'l is a side elevation of a sufficient ortion of a .drop or shifting shuttle-box oom, with one embodiment of my present invention applied thereto, the shuttle-box being shown in section; Fig. 2 is an enlar ed rear elevation 01' the pattern-contro led meanswhich 'overns or determines the position of the in crum upon or about which rocks the transmitter, the latter being operatively connected with the lifting rod; Fig. 3 is a front elevation of the shifting or movable fulcrum for the transmitter, and a portion of the mechanism adjacent thereto, the transmitter being shown in section on the line 33,'Fig. 1, looking toward the left; Fig. 4 is-an enlarged sectional detail of the parts mounted on the fulcrum-shifting shaft, such parts being seen in elevation in Fig. 3;

Fig. 5 is an enlarged perspective view of the rotatable carrier in which are mounted the attern-controlled members of the means w rich govern the positioning of the transmitter i'ulcrum; Fig. 6 is a perspective view of one of the pattern-controlled members.

Referring to big. 1, the lay 1 has mounted L1')O11 it the shifting or drop shuttle-box 2, (s iown as having four compartments or cells,) attached to the upper end of the lifting-rod 3 movable longitudinally in a guide 1 carried by the lay-sword 5, all substantially as usual. A two-part safety- link 6, 7 is pivotally connected to the lower end of the lilting-rod, the link-members being held together by a spring 8, as usual, and embracing a stud 9 on the lront end of a rocking transmitter 10. This transmitter is made as a lever, and it has a central hub 11 which receives with an easy fit a sleeve 12 projecting from the face 01' a depending leg 13, the sleeve being mounted on a horizontal stud 14 projecting horizontally l'rom a longitudinally apertured head 15 slidable on a vertical guide 16 sustained by a bracket 17 on the loom side, Figs. 1. and 3. The transmitter rocks on the stud 1 1 as a ful crum and such fulcrum is shiitable up and down to vary the throw of the front end 01 the transmitter.

The lower end of the leg 13 is shaped to constitute an eccentric strap 18, split at its lower end, and embracing an eccentric 19 having an elongated hub 20, Fig. 4, rotatably mounted on a shaft 21 parallel to and below the fulcrum stud 14 and rotatably supported in a stand 22. Two semi-circular gear segments 23 are formed on the hub 20, one laterally offset from the other as shown in Figs. 3 and 1, in effect forming two mutilated gears, the one beginning where the other ends, and vice versa, the object 01' said segments being to effect a semi-revolution of the eccentric 19 whenever a patterncontrolled actuating gear, to be described, is brought into operation. Between the hub 20 and the stand 22 a gear hub 24 is mounted on the shaft 21 and pinned thereto, as at 25, Fig. 4, the gear hub having two semi-circular gear segments 26 formed thereon, and arranged similarly to the segments 2 3.

The face of the eccentric 19 nearest the loom side is provided with an extension 27 on which are mounted lour stop or positioning pins 28, so placed that when the gear segments 23 and 26 are in the position shown in big. 3, or in a position 180 therefrom a positioning arm 29 will squarely engage two of the studs, the arm having a fixed fulcrum at 30 and forced toward tne studs by a strong spring 31. This positioning device is of substantially well known construction. A similar group 'of pins 32 is formed on the enlarged head of a collar 33 fast on the shaft 21, said pins cooperating with a second spring-controlled arm 34 fulcrumed on the pin 30, the said arm and pins serving to properly posi tion the shaft 21 with the segment gears 26, 26 in the position shown, or 186 therefrom. The collar 33 has fixed upon it a wrist-pin on which is pivoted the upper end of a link 36, jointed at its lower end to the front end of a lever 37 having a fixed fulcrum 33, Fig. 1, the two arms of the lever being equal, the rear end of the lever having an adjustable connection 39 with a link 40. Said link at its upper end is connected by a pivot bolt 41 with the rear end of the transmi'ter, 16, which has a longitudinal slot 42 to receive the bolt, whereby an adjustment is provided between the link and transmitter.

Vl henever the shaft 21 is given a hal revolution the lever 37 will be rocked on its fulcrum 38, to thereby raise or lower the front end of the transmitter and the con nected lifter-rod 3. The wrist-pin 35 has a throw sufficient to act through the intervering connections upon the transmitter 10 and swing its front end far enough to shift the shuttle-box 2 from one cell to the next, and if the parts are in the position shown in Fig. 1 a half-revolution of the shaft 21 by or through one of the mutilated gears 26 will act to rock the transmitter and raise the shuttleboX to bring the second compartment or cell into operative position. If the third cell is to be operatively positioned, instead of the first or top cell, the hub 20 and eccentric 1.9 will be given a half revolution from the position shown in Figs. 1, 3 and 4, through the strap 18 and leg 13 to raise or shift the fulcrum 14, the transmitter then swinging about the stud 41 as a center, and the third cell will thereby be brought into proper position with relation to the raceway of the lay. To change from the third cell to the bottom cell, the fulcrum 14 being in its highest position, but with the lever 37 in the posi tion shown in 1, the shaft 21 will be given a half turn, and the rocking of the le ver 37 will draw down the rear end of the transmitter, the latter rocking on the fulcrum stud 14, and the fourth cell will be lifted into operative position. The change from the second to the fourth cell will be effected directly by merely shifting the fulcrum 14 from its lowest to its highest posi tion, the transmitter then swinging upward upon the pin 41 as a center, and at the same time rocking upon the moving fulcrum 14.

1 Of course reverse movements, that is, from a lower compartment of theshuttle-box to a 'h her one will be effected in a reverse order, but the rotation of either the shaft 21 and its attached parts, or of the hub 20 and eccentric 19, will always be in the same direction.

A very compact grouping of the parts is efiected by the construction thus far described, doing away with separate front and back shafts and very large mutilated gears.

The pin 30 on which the arms 29 and 33 are pivotally mounted is fixedly secured to a suitable stand 43 rigidly connected with the loom side, said stand also carrying a rod 43 to which the fixed ends of the springs 31 are attached, see Fig. 2.

I will now describe the pattern-controlled means for governing the rotative movements of the mechanism which has just been described and which determines the position of the fulcrum about which the transmitter rocks.

The shaft 21 and the parts rotatable with or upon it are located close to the usual camshaft 44 of the loom, in the present embodiment of my invention, the shaft projecting beyond the loom-side and having mounted upon it a cylindrical carrier 45, having a central hub or partition 46 which in practice is fred upon the shaft in any suitable manner, the carrier wall being slotted from end to end, at 47, Figs. 1 and 5. Within the carrier at each side of the partition I mount a pat tern-controlled actuating member, one of such members being shown separately in Fig. 6 and comprising a hub 48 annularly grooved at 49 near its outer end and having a disk 50 at its inner end provided with a segmental gear 51 on a part 52 of its periphery, the ends of the part 52 being beveled to slide easily between the longitudinal edges of the slot 47 of the carrier.

The two hubs 48 are slidably mounted on the shaft 44 and are rotated therewith by means of the engagement of the parts 52 with the slotted carrier, the two segmental gears, which may be termed actuators, projecting beyond the surface of the carrier 45 far enough to engage with the gears 23 and 26 when the latter are properly positioned. The actuators 51 are long enough to mesh with one of the segment gears 23 or 26 and impart one-half a revolution to either the hub 20 or the shaft 21, as the case may be, one of the actuators 51 being moved longitudinally in the carrier 45 to cooperate with one or the other of the segment gears 23, while the other actuator is similarly moved to cooperate with one of the segment gears 26, the first mentioned actuator, which is the one in the right-hand end of the carrier viewing Fig. 2, rocking the transmitter 10 about the fulcrum 14, while the other actuator raises and lowers the said fulcrum to rock the transmitter about the pivot pin 11 as a fulcrum.

A T-shaped stand 53 on a bracket 54 bolted to the loom side has fulcrumed upon it at 55, Fig. 2,'swinging arms 56, each of which has a roll or other stud 56 to enter one of the grooves 49in the actuator hubs 18, the upper ends of the yokes being extended past each other above their pivots 55 and each having a depending lug 57 which is adapted to engage a stop 58 on the stand 53. A rod 59 pivoted on'one arm passes loosely through an car 60 on the'other arm, and an expansion spring 61 is coiled around the rod between the ear and a collar 62 on the rod, the spring normally acting to maintain the arms 56 in the position shown in Fig. 2. If either arm is rocked to push its connected actuator gear 51 inward the spring is compressed, and acts to press the lug 57 of the other arm tightly against the stop 58. The arms are connected by links or light rods 63 with rocker- arms 64, 64 Fig. 1, cooperating with a patternsurface, shown'as a pattern-chain 65 of ordinary construction, and operated in the usual manner, the pattern-chain acting upon one or the other rocker-arm 64, or upon both of them, in accordance with the position which the shuttle-box 2 is to assume.

In the arrangement herein illustrated the rocker-arm 64 governs that one of the actuators 51 which operates the means for shifting the fulcrum '14 of the transmitter 10, while rocker-arm 64 governs the other actuator 51 which operates the means for rocking the lever 37 to change the position of the pivot point f1, as will be clear from the foregoing description.

The slotted cylindrical carrier 15 for the actuators provides a strong and eflicient means for effecting positive rotation of the said actuators while permitting their easy shifting in or out as called for by the controlling pattern surface.

In efiect the transmitter has two fulcra, viz l4: and 41, both of which are shiftable to vary the throw of the transmitter in accordancewith the required position of the shifting shuttle-box.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom, in combination, a lay having a shifting shuttle-box thereon, box-operating mechanism, including a rocking transmitter, two shiftable fulcra about which the transmitter can rock, an intermittingly rotatable shaft, connections between it and oneof said fulcra, to shift the same by rotative movement of the shaft, a member rotatable on and independently of the said shaft, connections between said member and the other fulcrum, to shift it by rotative movement of said member 011 the shaft, and continuously rotating pattern-controlled actuators to effect rotative movement of the shaft and said member, respectively, according to the required position for the shuttlebox.

2. In a loom, in con'ibination, a lay having a shifting shuttle-box thereon, box-operating mechanism, including a rocking transmitter, two shiftable fulcra about which the transmitter can rock, a shaft, mutilated gears fast thereon, and a wrist-pin, connections between the latter and one of the transmitter fulcra, to shift the latter by rotative movement of the shaft, an eccentric and connected mutilated gears rotatable on the shaft independently thereof, a connec tion between said eccentric and the other fulcrum of the transmitter, to shift said fulcrum, and pattern-controlled actuator gears to cooperate with the two sets of mutilated gears and thereby shift the fulcra in accordance with the required position of the shuttie-box.

3. In a loom, in combination, a lay having a shifting shuttle-box thereon, box-operating mechanism, including a rocking transmitter, two shiftable fulcra about which the transmitter can rock, a shaft, connections between it and one of said fulcra, to shift the same by rotative movement of the shaft, a member rotatable on the shaft, connections between said member and the other fulcrum, to shift it, a continuously rotating shaft, a carrier fast thereon, actuator gears rotated by the carrier and longitudinally movable upon the shaft, to cooperate with and intermittingly rotate the fulcrum-shifting shaft or the member rotatable thereon, and a pattern-surface to control the operation of said actuatorgears.

4. The combination, with a shifting shuttlebox, and mechanism to operate it, including a rocking transmitter, and two shiftable fulcra about which the transmitter can rock, of a rotatable shaft having a wrist-pin, an eccentric loosely mounted on said shaft, a connection between said eccentric and one fulcrum, to shift it, a connection including an auxiliary lever, between the other fulcrum and the wrist-pin, to shift such fulcrum, and pattern-controlled actuating devices to impart rotative movement to the shaft and the eccentric, independently, to govern the throw of the transmitter.

5. The combination, with a shifting shuttle-boX, and mechanism to operate it, including a rocking transmitter, and two shiftable fulcra about which the transmitter can rock, of separate instrumentalities to shift said fulcra, each instrumentality'in cluding a revoluble member, said members being coaxial, and one being rotatably mounted on and supported by the other, coaxial, pattern-controlled actuators to cooperate respectively with said members, and means to rotate continuously said actuators.

.6. The combination, with a shifting shuttlQ-dDOX, and mechanism to operateit, including a rocking transmitter, and two shiftable fulcra about which the transmitter can rock, .one of said fulcrums being the center of the transmitter, and a fixed guide on which said fulcrum is vertically movable, of separate instrumentalities to shift said fulcra, each instrumentality including a revoluble member, provided with a mutilated gear, said members being axially alined, a con tinuously rotating shaft parallel to the axis of said members, actuator gears rotatable with and longitudinally movable on the shaft, and pattern mechanism to throw the actuator gears into and out of cooperation with the mutilated gears.

7.. The combination, with a shifting shuttle-box, and mechanism to operate it, including a rocking transmitter, and two shiftable fulcra about which the transmitter can rock, of separate instrumentalities to shift said. fulcra, each instrumentality in cluding a revoluble member, provided with a mutilated gear, one of said members being rotatably mounted on the other, a continuously rotating shaft parallel to the axis of said members, a cylindrical, lon 'itudinallyslotted carrier having a central partition fast on the shaft, disks slidable on the shaft at each side of the partition, segmental gear on each disk projecting beyond the carrier and having its base slidable in the slot, whereby the gears are rotated with the shaft, and pattern mechanism to move the gears in and out upon the shaft to cooperate with the mutilated gears and effect rotative movement thereof.

8. The combination, with a shifting shuttle-boX, and mechanism to operate it, including a rocking transmitter, a vertically movable fulcrum for and at the center of the transmitter, a lever having a fixed pivot, a

ssaeo link pivotally connecting one end of said lever with the transmitter, to rock the latter about its central fulcrum, the connection between the link and the transmitter forming a second movable fulcrum therefor, of separate instrumentalities to shift the cen tral fulcrum of the transmitter and to rock said lever and thereby shift the second fulcrum of the transmitter, respectively, each instrumentality including a revoluble mem her, and patterncontrolled actuators to cooperate respectively with. said members.

9. The combination, with a shifting shuttle-box, and operating mechanism therefor, including a rocking transmitter, a fixed vertical guide, a central fulcrum for the transmitter shiftable up and down on the guide, .a lever having a fixed central pivot parallel to said fulcrum, a link pivotally connecting one end of said lever with one end of the transmitter, to rock the latter about its central fulcrum, the connection between the link and the transmitter forming a second shiftable fulcrum therefor, of a shaft, connections between it and the lever, to rock the lever and shift the second fulcrum .by'

rotative movement of the shaft, a member rotatable on the shaft, connections between it and the central transmitter-fulcrum, to shift it up and down, continuously rotating actuator gears to cooperate with and intermittingly rotate the shaft or the member rotatable thereon, and a pattern-surface to control the operation of said actuator gears.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

GEORGE M. FOSTER.

Witnesses ROBERT L. MANNING, VELMAR PRINCE.

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