US1255725A - Picker-stick check for looms. - Google Patents

Description

w. s F INCH.

PICKER STICK CHECK FOR LOOMS. APPLICAITIGN FILED APR. 30. l9l7. L mpmfiv Patented Feb. 5, 1918.

2 SHEETSSHEET I.

M/uwwtom W. S. FINCH.

PICKER STICK CHECK FOR LOOMS.

AFPLICATIDN FILED APR. 30 19!?- mama v 3 w my v y llT @TTEEa PATNT WALTER SIMPSON FINCH, 0F GR-EENVILLE, SOUTH CAROLINA.

PICKER-STICK CHECK FOR LOOMIS.

,. 7 Application filed April 30, 1917.

To all whom it may concern Be it known that I, NALTER S. F INoI-r, a citizen of the United States, residing at Greenville, in the county of Greenville, State of South Carolina, have invented a new and useful Pickei stick Check for Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved picker-stick check for looms, and an object A further object of the inventionis to provide a yieldable pickerstick checking device, whereby the picker-stick at the limits of its inward and outward strokes, may be yieldably checked, 'incombination with means, whereby the tension of the yielding means may be regulated, or increased or decreased. t

The invention comprises further features and combination of parts hereinafter set forth, shown in the drawings and claimed.

In practical fields the details of construction may require alterations falling within the scope of what is claimed.

In the drawings Figure 1 is a front elevation of a portion of a picking mechanism at one side of a loom, showing the improved picker-stick check as applied thereto.

Fig. 2 is a view in side elevation disclosing the opposite side to that shown in Fig. 1.

Fig. 3 is a sectional view on line 33 of Fig. 1.

Fig. 4: is an enlarged detail perspective view of the yieldable picker-stick checking means detached and dis-assembled.

Fig. 5 is an enlarged longitudinal sectional view through the yieldable pickerstick checking means.

Referring more especially to the draw- Specification of Letters Patent.

Patented Feb. 5, 1918.

Serial No. 165,540.

ings, l designates a portion of one side of a loom, and 2' the lay rocker-shaft having fast thereon the picker-stick stand 3, and 1 denotes the picker-stick. Projecting laterally from the picker-stick stand 3 and downwardly is an arm 5, and arranged in an opening 6 of said arm is a lateral stud pin 7. Where this stud pin 7 engages the arm 5, it is constructed rectangular, thereby preventing the stud pin from turning. One end of the stud pin beyond the rectangular part 7 is provided with a cylindrical extension 8 having threads. This extension enters an opening 9 of the up-standing arm 10, and by means of the nut 11 which is threaded on the extension 8, the Lip-standing arm 10 is held fixedly in position. Mounted upon the pin 7 is a tubular sleeve 12. The other end of the pin 7 enters an opening 1% of the other end of the sleeve. This opening 1% of the sleeve is formed in the reduced end 13 of said sleeve. The reduced end of the sleeve has mounted thereon a drum 16, there being a nut 15 on the outer end of said pin 7 and adapted to jam against the reduced end of said sleeve, thereby holding the sleeve securely in position and against rotation relative to the pin. It is to be noted that the drum 16 is capable of a partial spring tensioned revoluble movement on the reduced end13 of the sleeve 12, due to the action of the spring 17. The coil spring 17 has one end passing through the wall of the sleeve at one of its ends and engaged about the pin 7 The other end of the spring passes through the wall of the drum 16, and terminates in a hook 18, to which one end of a strap 19 is connected; the other end of the strap is connected to the picker-stick 4 by means of the clamp 20, which is secured in place by means of the bolt 21 and the nuts 22, which bolt 21 also secures the shoe to the lower end of the picker-stick. This shoe E23 rests and rocks upon the upper fiat surface of the picker-stick stand 3. The shoe 23 has a lug 24: extending downwardly and through an opening 25 of said stand, which, on its upper face, has a lug 26, which enters the opening 27 of the shoe.

The upper end of the arm 10 is provided with a slot 28, through which the screw bolt 29 extends. Mounted on the screw bolt adjacent the outer side face of the arm 10 is a collar 30 provided with a lateral extension bushing 31, the outer end of which is engaged by the head 32 of the screw 29. Ar-

ranged on the screw 29 in contact with the inner face of the arm 10 is a washer 33 and a nut 34, whereby the screw 29 and said collar 30 may be held in diflerent adjusted positions. Secured on the bolt 21 between the clamp 20 and one of the nuts 22 is an angular plate 35, and passing through the part 36 of said plate 35 is a bolt 37, on which a sleeve or bushing 38 is mounted. This sleeve or bushing has a flange 39, and adjacent the flange and mounted upon the bolt is a washer 40, there being a nut4l threaded to the bolt, in order to hold the attendant parts together. A plate 42 is mounted on the extension bushing 31 of the collar 30, and one end of this plate 42 has a bearing sleeve 43, through which a rod 44 passes. One end of this rod has an eye 45 through which the bushing 38 extends, thereby pivotally connecting the rod to the angle plate 35 picker-stick. Adjustably secured by the set screws 46 and 47 on the rod 44 are set col lars 48 and 49, between each of which and the bearing sleeve 43 a coil spring is interposed, thereby providing a yielding connection between the rod and the bearing sleeve.

In view of the above description, in connection with the drawings, it is to be noted that when the loom picks or throws the shuttle (not shown), by making a rearward stroke of the picker-stick in the direction of the arrow a, pulling the rod 44 forwardly, making it slide through the bearing sleeve 43 closes or compresses the spring 50 between the set collar 48 and the sleeve bearing, thereby yieldably checking the picker-stick in said movement. As the picker-stick moves forwardly in the direction of the arrow 6, the spring 50 (between the bearing 43 and Copies of of the the collar 48) is allowed to expand, while the spring between the bearingand the collar 49 is compressed, thereby yieldably checking the picker-stick in its rearward move ment.

The invention having been set forth, what is claimed as new and useful is In a device as set forth a stand having an upstanding arm, a picker stick rockably mounted on the stand, an angle plate carbifnrcated, a screw bolt engaging said bifurcation, a collar on sa d bolt betweenits'head and the bifurcated end of the arm, means on said sleeve having an eye at one end pivoted on said bushing, a pair of set collars adjustably mounted 011 the rod, one on either side of the sleeve, and coil springs, one be tween each set collar and the sleeve, whereby the checking of the picker stick in its forward and backward movements is ieldably aifected.

In testimony whereof I havesigned name to this specification inthe presence of two subscrlblng witnesses.

WALTER sIMPsON' FINCH. Witnesses: V

ELISE McCAsnEY, LOTTIE -COLEMAN.

this patient may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

"50 ried by the picker stick, a bushing swivelly connected to one arm of the angle plate, the upper end of the upstanding arm being.

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