US714294A

US714294A - Positive shuttle-motion for looms.

Info

Publication number: US714294A
Application number: US8613701A
Authority: US
Inventors: Fred S Gable
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-12-16
Filing date: 1901-12-16
Publication date: 1902-11-25
Anticipated expiration: 1919-11-25

Description

Patented Nov 25, I902.

F. s GABLE. POSTIVE SHUTTLE MOTWN FOB LOUIS.

' (Application filed Dec. 1g, 1901.

(No maul-Q) 2 Sheets-Sheet 2.

[S Ilgaz zjima 1 l lfiargzys UNITED STATES PATENT OFFICE.

FRED S. GABLE, OF GLENROCK, PENNSYLVANIA.

POSITIVE SHUTTLE-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 714,294, dated November 25, 1902.

1 Application filed December 16, 1901. Serial No. 86,137. (No model.)

To all whom it may concern:

Be it known that I,-FRED S. GABLE, a citizen of the United States, residing at Glenrock, in

thecounty of York and State of Pennsylvania, have invented a new and useful Positive Shuttle-Motion for Looms, of which the following is a specification.

My invention relates to certain improvements in loom-shuttle-operating mechanism of that class employed in wire-weaving looms, andhas for its principal object to improve the construction of the shuttle-holding catches for holding and carrying the'shuttles across the shed.

A further object is to dispense with the employment of catches of that class in which the tensional strain of the wire is resisted directly by a spring-catch, to the end that all danger of the dropping of the shuttle in the shed may be avoided.

With these and other objects in view the invention consists in the novel construction and arrangements of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

In the drawings, Figure l is an elevation of sufficient of I awire-weaving loom to illustrate the construction and application of my imof the same.

proved shuttle-operating mechanism. Fig. 2 is a sectional elevation of oneof the shuttlecarrying bars. Fig. 3 is a sectional plan View Figs. 4 and 5 are views similar to Fig. 3, illustrating modifications of the structure.

Similar numerals of reference are employed to indicate similar parts throughout the figures of the drawings.

The structureof the loom employed in con- .nection with the present invention is immaterial, and the form herein illustrated and described is merely employed asan instance of one form of loom to which the invention may be applied.

1 designates a portion of a loom-frame, and 2 a swinginglathe, provided at its upper end with boxes 3'for the reception of a shaft i, on which the lathe is pivoted, said shaft being supported in bearings 5 on the loom-frame.

6 designates a shaft carried by bearings on the loom-frame and rotated by any suitable mechanism. This shaft carries a gear-wheel 7, which meshes with a gear-wheel 8 on a shaft 9, also journaled in the frame and carrying two crank-arms 10, which are connected by rods or arms 11 to brackets 12, arranged at the outer ends of the hollow shuttle-bars 14. The shuttle-bars slide in boxes 15, connected to or supported by the loom-frame, and are moved back and forth by the rotation of the cranks 10.

Pivoted to the brackets 12 at the outer ends of the hollow shuttle-bars are suitable levers 16, adapted to be operated upon in alternation by cam-plates 17, guided upon the loomframe and adjustably connected to a reciprocated rod 18, which is operated. by a lever 19, pivoted at 20 to the frame and adapted to be operated upon by a suitable cam 21, which receives its motion from the shaft 6,

bevelgears

22 and 23, shaft 4, spur-gears 24 and 25, and shaft 26. I

The construction and operation of the mechanism thus far described are well known in the art and form no part of my present invention.

The shuttle-bars 14 are rectangular in crosssection and are of sufficient length to carry the shuttle positively through the shed at each operation. The shuttle 30 may be of the usual type, carrying a bobbin for the wire to be woven and provided at each end with an engaging hook 31, adapted to pass within the open end of the shuttle-bar, the latter being preferably provided with flared end portions 32 and the end of the shuttle being slightly inclined in order to facilitate its entrance into the shuttle-bar.

On one side of the shuttle-bar are formed two openings 33 and 34:, through which pass the end portions of a catch or hook 35, the body portion of the hook being located outside the shuttle-bar and having a flattened face adapted to fit snugly against the fiat outer face of the bar. The hooked end, or that end adapted to engage with the catch or hook of the shuttle, is provided with a rounded outer end 36, adapted to be engaged by the inclined end of the shuttle on its inward movement, and is also provided with a slightlyinclined shoulder 37 for engagement with a correspondingly-shaped shoulder or face on the shuttle. The shank portion of the catch extends through the openings 34and is mounted on a pivot-pin 38, the ends of which extend through the wall of the shuttle-bar. On the shank portion of the catch are front and rear end faces 40 and 41, respectively, which are engaged by a suitably-shaped cam-block 42, adapted to fit within the shuttle bar and provided with a recess, into which the shank of the catch extends. The recess is so shaped as to form front and rear cam-faces 43 44 for engagement with the cam-faces 40 and 41, respectively, of the cam-catch 35. The camblock is connected by a rod 45 to the lever 16, the end of the rod being threaded for the reception of two adj ust-able nuts 46 47, (shown by dotted lines in Fig. 2,) said nuts holding a collar 48, from which projects a pin 49 into a vertical slot 50, formed in the lever. At a point within the shuttle-bar the rod 45 is provided with a fixed collar 51, between which and the end of the shuttle-bar is a coiled compression-spring 52, normally tending to force the cam-block in the direction of the catch and forcing the cam-face 44 of said block into engagement with the cam-face 41 of the catch, thus tending to keep the hooked end of the catch in position within the lines of the shuttle-bar.

In the operation of the mechanism the shuttle-bars receive movement in opposite direction through the leading of the cranks 10 and connecting-rods 1l,the operating-lever 16 being brought into contact with their respective cams 17 at such times as to withdraw one or other of the cam-blocks 42, causing its camface 43 to come into contact with the camface 40 of the catch, and thus raise the hooked end of the latter from engagement with the hooked end of the shuttle. At the same time the opposite end of the shuttle is forced into the opposite open end of the mating shuttlebar, coming into contact with the inclined face 36 of the catch and automatically raising the same until it has passed beyond the slightly-inclined face 37 of the hooked end of the catch, the latter being then depressed by the action of the spring 52 as the cam-face 44 is forced against the cam-face 41 of the catch.

The face 37 of the catch and the similar face of the shuttle-hook with which it engages may be perfectly straight or at a right angle to the length of the shuttle-bar, but for convenience are slightly inclined, so that there will be no backward pull on the shuttle as the catch swings on its fulcrum-point to the disengaging position. The inclination of these faces, however, is such that there can be no possibility of their disengagement under the tensional strain exerted by the weftwires, the cam-faces 44 and 41 being forced intointimate contact nnderstress of the spring 52 and preventing movement of the hooked end of the catch in an outward direction. By this means I am enabled to insure the firm holding of the shuttle during its travel across the shed, preventing the disengagement of the shuttle from the carrying-catch by reason of the tension of the wire, and at the same time the construction is such as to have all of the working parts inclosed within the body of the shuttle-bar, avoiding any projections which might engage with the warps.

The structure may be slightly modified in the manner shown in Fig. 4, the hook 35 in this instance being fulcrumed on a pin 38 within the body of the shuttle-bar and from thence extending rearwardly to form a lever 53 for engagement with the operating-bar 45', the latter being provided with a compressionspring and cam-operated lever in the manner previously described.

In Fig. 5 I have illustrated a further modi- I fication in which the hook or catch 35 is pivoted at 38 and is connected bya link 60 to a block 61, guided within the shuttle-bar and connected by a rod 45 to an operating-lever and spring of the character above set forth.

In both ofthe modified constructions it will be noted that the mechanism is also contained within the limits of the shuttle-bar and that the construction is such that there can be no disengagement of the shuttle catch under tensional strain of the wire.

The structure may be modified in a variety of ways as regards form, proportions, and minor details of construction without departing from the intent or spirit of my invention, and it may be applied to positive shuttle-motion looms of any desired character or construction.

Having thus described my invention, what I claim is 1. In a device of the class specified, the combination with a hollow shuttle-bar, of a catch or hook having its shank end extending through an opening into the body of the bar and pivoted therein and its engaging or bill end extending through a second opening in the bar,-an operating-lever arranged at the outer end of the bar, and means for moving said lever to positively operate the catch or hook in both opening and closing movements, substantially as specified.

2. In a device of the class specified, the combination with a hollow shuttle-bar, of a camblock guided therein and having a recess, a shuttle catch or hook having its shank end extending into said recess and pivoted to the shuttle-bar, said catch having cam-faces for engagement with cam-faces on the block, an operating-lever arranged at the outer end of the shuttle-bar, a rod connecting the lever and block, and a compression-spring arranged on said rod and normally tending to holdthe catch in closed position,substantially as speci= fied.

3. In a device of the class specified,the combination with a hollow shuttle-bar having outwardly-flared walls at its inner end, acamblock guided within the shuttle-bar and having a recess, a shuttle-engaging hook or catch having its engaging and shank ends extending through openings in one wall of the bar, the shank end having cam-faces adapted for engagement with similar cam-faces on the rounding said rod and extending between the 10 cam-block, a pivot-pint1e for securing said collar and the end of the shuttle-bar.

shank end to the body of the bar, an operat- In testimony that I claim the foregoing as ing-lever arranged at one end of the bar, an my own Ihave hereto affixed my signature in 5 operating-rod extending from the lever to the the presence of two Witnesses.

cam-block, means for adjusting the relative FRED S. GABLE. positions of thelever and rod, a fixed collar Witnesses:

carried by the rod at a point within the shut- GEO. R. GAWTHROP,

tie-bar, and a coiled compression-spring sur- AUG. W. BRADFORD.