US1490877A - Shuttle guard - Google Patents

Description

April 15 1924.

H. E. WHITE SHUTTLE GUARD Filed Sent. 25, 1922 9 1H. n E w m o .H

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.which can be moved out of the way when Patented Apr. 15, .1924.-

UNITED/STATES N 1 1,490,877 PATENT OFFICE.

HORACE E. WHITE, or mmmoaammmm SHUTTLE GUARD.

Application filed September 25, .1922. Serial No. 590,443.

To all whom it may concern:

Be it known that I, HORACE E. WHITE, a citizen of the United States, residing at. Baltimore, in the city of Baltimore and State of Maryland, have invented certainnew and useful Improvements in Shuttle Guards, of which the following is a specification. I

My said invention relates to a shuttle guard for looms and it is an object of the invention I to provide a sectional shuttle guard which is adapted to be used with looms of various widths.

A further object of the invention is to provide a shuttle guard which will automatically assumeits working position when the loom is started and which will securely lock itself in such position until displaced by the Still other objects are to provide a guard which is adjustable and the end sections of temples. are used on cloth.

Referring to the accompanyingdrawings which are made a part hereof and on which: similar reference characters indicate similar parts. 1 I

Figure 1 is a plan of 'mydevice,,

Figure 2 a front elevation, I

Figure 3 a fragmentary front elevation on an enlarged scale, and

Figure 4 a section on line 44 of Figure 1.

In the drawings reference character 10 indicates a lay having the usual'shuttle race 11, hand cap 12 and reed 13 extending between the race and the cap. A conventional shuttle is indicated at 15 in Figure 4 and this figure also shows the position of the guard relative to the shuttle and other parts,

At the front side of the hand cap or reed cap I provide a plurality of plates 16, each of these plates being here shown as held in place by a pair of screws 17 and a bolt 18 extending through the reed cap. Each plate has a vertical slot in which is located a bolt 19 having its head located in a recess in the reed cap back of the plate 16, the recess and the slot both running to the bottom of the cap. This bolt serves to support in position for vertical adjustment a bracket 20 and two or more brackets are provided for each of the rods 21 which are fixed thereto by setscrews 21. In the present embodiment of the invention I have shown three such rods arranged in line across the front of the reed cap, each rod having two or more sleeves 22 arranged to slide and swing thereon. Each of the sleeves is integral with a guard 23 or 24. i Itwill be seenjthat the guards 23 at the ends'of the lay are relatively short and have buttwo sleeves whereas the guard 24 may extend substantially across the lay and has several sleeves to carryit. Guard 24 is preferably made in a single section, but may be in several'independent sections.

Each sleeve 22 has at one end a-clutch formation best shown in Figure 1 andcomprising a high part 25 and a low part 26 cooperating with a corresponding high part 27 and low part 28 on the adjacent bracket 20. In Figure 1 the guard is shown in operative position with the clutch teeth engaged, this position being also, indicated in Figure 4 in full lines. By moving the guardto the left the clutch may'be disengaged and by then raising the guard it may'be placed in the inoperative positionindicated in dotted lines in Figure 4. The endwise movement ofthe guard is resisted by one ormore springs 29 each resting at one end against a collar 30 fastened to the. rod by a setscrew .30 and serving to maintain the clutch in engagement under ordinary conditions In the pre- I ferred form of mywinventionthese springs are compression springs and their only function is to force the clutch-faces together.

It will be evident that one or more sections of the guard can readily be raised to observe the warp or repair breaks in it while the other sections will remain in operative position. If the operator should neglect to restore any section to operative position it will be thrown down automatically as the lay heats up and when thus thrown down the spring will move it to the right to reengage the clutch and hold it in place. It may be noted that I may provide clutch teeth on each sleeve 22 asis shown for the middle guard member or on only one of them as on the end members in Figure 1. On wide looms three or more sections may be used and preferably one long section and two short sections whereas on narrow ones I preferably use two sections only.

For merelyremoving the shuttle a single end section only will need to be lifted whereas if it is necessary to work on the warp ends all of the sections may be unlocked and laid back against the top of the hand cap fore I will always be in the same position while the shuttles are crossing the loom and can only be lifted after the 100111 stops. The guard sections can each be adjusted up and down independently by loosening the nuts on bolts 19 and moving the section and its brackets at will. If desired the guard may be lowered to within a fraction of an inch of the cloth or may even touch'the cloth; When temples are used on the cloth the end sections can be moved up just far enough to clear the temples and the center section mayremain in its original position whereby 'no part of the guard is rendered inactive. Preferably the guard extends from the mouth of one'shuttle box to the mouth of the other ,onewhich leaves no vacant space for the shuttle to get out; atthesame time due. to the skeleton construction of the guard the operative has a clear view of the cloth and the Warp ends while the guard is in its working position.

It willvbe obvious to those skilled in the art thatnumerons changes can be made in the device as shown inthe drawingsand described in thespecifieation without departing from the spirit of the invention, theredevice illustrated but only as indicated'by the appended claims.

Having thus vention, what I claim as new and desire to secure by Letters Patent, is:

1. A shuttle guardcomprlsing rods on the lay, guard sections depending from the rods, brackets on complementary faces on theguard sections to lock them in fixed active positionsaid guard sections'bey do notlimit myself to the specific fully described my said inthe lay having clutch faces adapted to engage with ing movable lengthwise of the rods to disengage the clutch teeth and then rotatable thru approximately a half circle into an upper idle position from which they may be dislodged by inertia on the beat-up of the lay, substantially as set forth.

2. A shuttle guard comprising one or more pivoted intermediate sections, independent relatively short guard sections pivoted adjacent each end of the reed cap, means for adjusting the end sections up and down on the lay and means for locking all of the sections in fixed relation to the cap during operation of the loom, substantially as set forth. r a 3. 'A shuttle guard comprising one or more intermediate sections, independent guard sections adjacent each end of the reed cap, and means for adjusting the end sections independently up or down on the lay, substantially as set forth.

4:. A shuttle guard comprising one or more intermediate sections,- and relatively short independent sections pivotally mounted on said cap adjacent the ends thereof whereby said sections may rest loosely against the upper partof the cap in idle position-and 'returnto operative position by the beat up of the lay, substantially as set forth. 7

'In witness whereof, I have hereunto set my hand and seal at Baltimore, Maryland this 19th day of September, A. D. nineteen hundred and twenty-two.

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