US795254A

US795254A - Head-motion for looms.

Info

Publication number: US795254A
Application number: US233421A
Authority: US
Inventors: George S Cox
Original assignee: GEORGE S COX AND BROTHER; WALTER S COX
Current assignee: GEORGE S COX AND BROTHER; WALTER S COX
Priority date: 1904-07-27
Filing date: 1904-11-19
Publication date: 1905-07-18
Anticipated expiration: 1922-07-18

Description

No. 795.254- PATENTED JULY 18, 1905.

G. S.,GOX.

HEAD MOTION FOR LOOMS. APPLICATION FILED NOV. 19, 1904.

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PATENTED JULY 18, 1905.

S. 00X. HEAD MOTION FOR. LOOMS.

APPLIUATION FILED NOV. 19, 1904.

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NTTED STATES Patented July 18, 1905.

PATENT OFFICE.

GEORGE S. COX, OF FITZWATERTOWVN, PENNSYLVANIA, ASSIGNOR TO HIMSELF, AND IVALTER S. COX, OF PH lLAD'ELPI-IIA, PENNSYLVANIA, TRADING AS GEORGE S. COX AND BROTHER.

HEAD-MOTION FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 795,254, dated July 18, 1905.

Original application filed July 27, 1904, Serial No. 218,322. Divided and this application filed November 19, 1904. Serial No. 233,421.

To all whom, it may concern: I

Be it known that I, GEORGE S. Oox, a citizen of the United States, residing at Fitzwatertown, county of Montgomery, and State of Pennsylvania, have invented a new and useful Improvement in Head-Motions for Looms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

The object of my invention is to provide a head-motion for looms by means of which any device on the loom may be caused to operate intermittently and momentarily.

This application is a division of an application filed by me July 27, 1904:, Serial No. 218,322, for an improvement in hair-cloth looms wherein the invention described and shown as adapted to actuate mechanism for moving two troughs containing hair of different colors alternately into and out of operative relation with the selector, whereby the selector is caused to select hair alternately from the two troughs, thus forming cloth in which the weft consists of two or more different colors. The invention forming the subject-matter of this application is not, however, limited to the actuation of such, or any, weft-changing mechanism, but may be utilized for the purpose of operating any devices on the 100111 which it is desired to occasionally throw into action at predetermined times, and therefore the description and drawings of this application are confined to the novel mechanism embodying my invention and mechanism immediately associated therewith.

The invention consists of the general and specific construction and arrangement of devices hereinafter described and claimed.

In the drawings, Figure 1 is a plan view of the shedding-motion and pattern mechanism for controlling its actuation, including my novel head-motion. Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is a front elevation of the same, and Fig. i is a perspective view showing the mechanism for moving the pawl-lever out of engagement with the ratchetwheel for actuating the pattern-drum.

a is the frame of the shedding-motion.

is the usual oscillating shaft, having secured thereto the usual double-ended levers 29 29.

26 represents the usual notched draw-bars of an ordinary closed -shed machine, each draw-bar being made in two sections hinged together at 261 and having one end 26 notched and adapted to be engaged by the constantlyreciprocating knife 27 of the shedding-motion. This knife is connected by connecting-rods 28 with the upper arms of the double-ended levers 29, secured to the shaft 50. The lower arms of levers 29 are connected by links 291 with the cross-bar or sliding rack 270, which is adapted at each oscillation of the shaft 50 (as in the ordinary closed-shed machine) to push each draw-bar 26 into position to be engaged by the knife 27 when the notched end 26 of the draw-bar is dropped, as hereinafter described. The invention relates to the means for causing the notched end of one of the draw-bars to drop and to be subsequently restored to its uplifted position, the said drawbar being connected to the weft-changing or other mechanism that it is desired to throw into action at predetermined times.

The shaft 50 is oscillated by means of a rod 30 and lever 290, which are reciprocated by means of connections from the cam-shaft. (Not herein shown.)

2A is a flexible connection the upper end of which extends over a roller 25 and is secured to a lever 240, pivoted on the frame. The lower end of the flexible connection 24: is connected with any weft-changing or other mechanism that it is desired to operate. The lever 24:0 is also connected by a wire 260 with one end of the particular draw-bar 26 that is arranged to be operated by the mechanism hereinafter described embodying my invention.

262 is a spring, one end of which is secured to the lever 240, while the other end is secured to the frame. The spring serves to pull troughs, so as to move one hair-trough out of the draw-bar toward its inoperative position (to the left, Fig. 3; to the right, Fig. 2) when it is not being moved in the opposite direction by the sliding rack 270 or the knife 2?.

Normally the knife 27 is ineffective to actuate the draw-bar 26 when the latter at each oscillation of the shaft 50 is moved forwardly by the sliding rack 270, as the notched end of the draw-bar is held above the path of travel of the knife by means of one end of a pivoted lever 3st. The other end of lever 34 rests on a support 340 and is provided with a boss 35, that is in line of travel with the lugs 37 of a pattern-chain 38. -\Vhen one of the lugs of the pattern-chain travels under the boss 35 and lifts it and the corresponding end of the lever 34:, the other end of lever 3a is lowered and the hooked end 26 of the draw-bar 26 P drops. Then, as before described, the knife 27 actuates the draw-bar 26, which, through the medium of the connections 260 and. Q4, operates the weft-changing or other mechanism that it is designed to operate. The patternchain extends over the the sprocket-wheel 38, which, together with the pattern-drum L6 and ratchet wheel 47, is secured to the shaft 39.

i5 is a pawl-lever pivoted to an arm 450, secured to shaft 50. At each oscillation of the shaft 50 the pawl-lever t?) actuates the ratchetwheel 47, thereby turning the pattern-drum and the pattern-chain.

In the application of which this is adivision the flexible connection 2% actuates mechanism which shifts a slide containing two hairoperative relation with the selector and the other hair-trough into operative relation with the selector. lf the selector misses a hair, however, it is necessary to stop the operation of the pattern-shaft, and mechanism for this purpose is set forth in said application. I have therein described how the failure of the selector to pick a hair from the trough throws into action a chain of mechanism (not herein described) for lifting the rod 81.

63 is a shaft turning in bearings 0n the top of the loom-frame.

80 is a lever secured to shaft 63. The rod 81 is pivoted to lever 80, so that whenever the selector misses a hair the shaft 63 is turned in its bearings.

is a stud sliding in guides 61 and adapted to be raised by the free end of a lever 62, secured to the shaft 63. As the shaft 63 turns the stud 60 is raised, thereby lifting the pawllover a?) out of engagement with the ratchetwheel M.

It will be understood that if the lug of the pattern-chain 36 remained under the lever 3 L and held up lever 31 and then the selector 5 missed a hair the resultant disengagement of the pawl-lever 45 from the ratchet-wheel 47, just described, would cause the pattern-chain to remain stationary, and the lug thereon, continuing to hold up the lever 3%, would cause i the draw-bar to be again engaged by the knife and the hair-troughs to be again shifted. This is obviated by arranging the lugs on the chain out of alinement with the pins 4,60 on the pattern-drum, so that when the ratchet-wheel a7 is turned a distance of one teeth a line of pins e60 is brought immediately under the corresponding draw-bars, while the lug on the pattern-chain passes under and beyond the lever 34, The lug therefore merely lifts the lever 3st and does not hold itup, the latter function being effected by a weighted bell-crank lever 65, the unweighted arm having a hook 66 at one end which engages a notch 67 on the lever 34 when the latter is lifted by the patternchain lug. As before described, when the lever 34 is lifted the draw-bar 26 drops, and the knife 27 then actuates the draw-bar to operate the chain of mechanism for shifting the hairtroughs.

68 is a bracket secured to the lraw-bar 26, said bracket having a hooked end 680.

650 is a pin on the hooked end of the bellcrank lever 65, said pin being in line of travel of the hooked end of the bracket. During the last-described operation of the drawbar just before it has completed its movement the hooked end of the bracket 68 strikes the pin 650, pulling the hooked arm of the bell-crank lever to the right, Fig. 2, withdrawing the hook 66 from under the notched end of lever 34 and permitting the latter to drop.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is"

1. In a loom, in combination, a draw-bar, a constantly-reciprocating knife adapted to actuate said draw-bar, pattern mechanism, a lever actuated by said pattern mechanism to control the movement of said draw-bar into and out of the line of movement of said knife, and a device adapted, when said lever is so actuated, to hold it in the position to which it is moved by said. pattern mechanism, substantially as described.

2. In a loom, in combination, a draw-bar, a constantlyreciprocating knife adapted to actuate said draw-bar. pattern mechanism, a lever actuated by said pattern mechanism to control the movement of said draw-bar into and out of the line of movement of said. knife, a device to hold said lever in the position to which it is moved by said pattern mechanism, and means operated by said knife operating to return said lever to its normal position, substantially as described.

In a loom, in combination, a draw-bar, a eonstantly-reciprocating knife adapted to actuate said draw-bar, pattern mechanism, a lever actuated by said pattern mechanism to control the movement of said draw-bar into and out of the line of movementof said knife,

; a device to hold said level in the position to which it is moved by said pattern mechamsm, and a bracket on the draw-bar adapted, when the draw-bar is so actuated by the knife, to engage said device and disengage it from said lever, thereby causing the latter to return to its normal position, substantially as described.

4. In a loom, in combination, a draw-bar, a constantly-reciprocating knife adapted to actuate said draw-bar, pattern mechanism, a lever actuated by said pattern mechanism to control the movement of said draw-bar into and out of the line of movement of said knife, a hooked lever adapted to engage said lever When it is so moved by said pattern mechanism and hold it in operative position, and a bracket on the draw-bar adapted, when the draw-bar is so actuated by the knife, to engage said hooked lever and disengage it from the first lever, thereby permitting the latter to return to its inoperative position, substantially as described.

In testimony of which invention I have hereunto set my hand, at Philadelphia, on this 17th day of November, 190a.

GEORGE S. COX.

Witnesses:

M. M. HAMILTON, T. B. Wool).