US1178627A - Loom. - Google Patents

Description

I 2 HEET HEETI D. H. CLARK.

. LOOM. APPLICATION FILED SEPT. 18. 1914.

Patented Apr. 11, 1916.

n. H. CLARK.

LOOM. APPLICATION FILED SEPT. 18, 1914.

Patented Apr. 11, 1916.

I 2 SHEETSSHEET 2- Inventor DAVID H. CLARK, OF GREENSBORO, NORTH CAROLINA.

LOOM.

Specification of Letters Patent. Patented A1313 11 1916 Application filed September 18, 1914. Serial No. 862,333.

To all whom it may concern:

Be it known that 1, DAVID H. CLARK, a citizen of the United States, residing at Greensboro, in the county of Guilford and State of North Carolina, have invented a new and useful Loom, of which the following is a specification.

The present invention relates to improvements in looms and relates'more particularly to means for automatically stopping the loom due to an entanglement of the warp thread, one object of theinvention being the provision of means that is automatically operated by an entanglement occurring in the warp threads in the loom, to bring the loom to a halt, and thus permit the correction of the fault before the loom is again started.

A further object of the present invention, is the provision of a simple device of this character, which is readily applied to the loom frame, in operable relation to the filling fork which acts in the usual manner, and the present device serving to stop the loom should an entanglement of the warp within the scope of what is claimed without departing from the spirit of the invention.

In the drawings :Figure 1 is a side elevation of a loom equipped with a filling fork for the present mechanism applied in operable relation thereto. Fig. 2 is a top plan view of the loom, with the central bracket thereof shown in section. Fig. 3 is a diagrammatic perspective view of the complete attachment and the filling fork, the mechanism controlled by the filling fork not being shown.

Referring to the drawings, the numeral 1 designates the frame of the loom, which carries the usual bracket 2, a lay-beam 3 being mounted as usual, while pivoted in the front end is the filling fork 4 mounted as usual in the sliding member 5 and for engagement with the upper end of the bell crank lever or rocking member 7, whose terminal 8 is operated by the earn 9 upon the transverse shaft 10. The shipper or lever 11, is thrown outwardly in the slot plate 12, by the spring 12, said shipper actuating the belt throwing lever 13, to shift the belt 14 from the fast .pulley15 to the loose pulley 16. The filling fork is operated by a spent shuttle as is usual. It will thus be seen that when the filling fork 4 is operated to engage the upper end of the lever 7, that the lever 7 due to, the operation of the cam 9 will causethe slide 5 to engage the lever 6 which releases the shipper 11 the belt shifter.

In order to provide a means foroperating the filling fork due to an entanglement of the warp threads 27, there is mounted at the oppositeend to the filling fork for rocking movement the bar 17, which is provided with journaling pintles 18 at the opposite ends mounted in the frame of the loom. Extending from the same is a rod 19, which has mounted adjustably thereupon, the weight 20, the weight 20 thus holding the upwardlyi projecting loop-shaped standards 21, toward the end of the machine so that the rod 22 which is connected to one standard and is guided through the bracket 23 carried by the main bracket 2 of the loom, will at the proper time be properly moved in opposition to the weight, as will presently appear, to cause the hooked terminal 24 to ride. upon the filling fork 4, to engage the upper end of the lever 7 The end of the rod 22 which is engaged with one of the loopshaped standards 21, has an eye slidable upon one limb of said standard.

In order to limit the movement of the rod 22 in the direction of the bias of the weight 20, an adjustable sleeve 25 is attached to the rod 22 at the opposite side to the bracket 23.

Carried by the standards 21 of the rocking bar 17, is a plate or bar 26, over which are which moves threads 27, as particularly illustrated in 'Fig. 3, the warp threads being guided through the loom in the usual manner. The terminals of the bar 26 projectthrough the loop-shaped standards 21 and are notched to engage the limbs of said standards to prevent the longitudinal movement of the bar 26, but to allow the same to move vertically relative to the bar 17.

It will thus be seen that should an entanglement occur in two or more of the warp threads, that the connection of the threads to each other at a point beyond the bar 26, will cause the threads to engage the bar 26, and through the two standards 21 impart a rocking movement to the bar 17 in opposition to the Weight 20, thus sliding the rod 22, so that the hooked terminal 24; thereof Will move beyond the pivotal point of the filling fork t so as to depress the fork in the path of the lever 7. Thus as soon as the lever 7 is engaged, the stop motion Will be 0perated.

The rod 22 may be extended adjacent the lay-beam, or in any desired position according to the make of the loom, the present device being readily applied to any form of loom, in Which a filling hook is employed.

An important feature of the invention is the capability for the easy insertion and re moval of bar 26. It is to be noted that the forward limbs of the loop-shaped standards 21 are attached to the rocking bar 17, While the rear limbs of said standards are spaced from said bar 17, to enable the bar 26 to be moved under said free rear limbs in applying and removing said bar 26. Thus, by depressing the bar 26 into contact With the bar 17, and moving bar 26 slightly to the rear it can pass under the rear limbs of the standards, and the bar 26 can then be Withdrawn from the Warp threads toward either side of the loom. The rearward lease rod opens up the Warp threads sufliciently for Copies of this patent may be obtained for the insertion of rod 26 when held in a substantially horizontal position. Bar 26 can then be depressed, passed under the rear legs of standards 21, and allowed to rise under the influence of the tensioned Warp threads. Attention is called to the fact that bar 26 is independent of and is used in connection With the ordinary lease rods.

lVhat is claimed is A loom attachment embodying a rocking bar, means for normally holding said bar in one position, a pair of loop-shaped standards each having one limb attached to and its other limb spaced from said bar, a Warp guiding bar disposed above the first mentioned bar and having its terminals projecting through said standards, said Warp guiding bar having notches in its edges to engage the limbs of said standards and being movable under the second mentioned limbs of the standards, and a reciprocatory rod for operating a stop mechanism having one end connected to one Of said standards.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of tWO Witnesses.

DAVID H.- CLARK.

Witnesses:

' M. C. CARROLL,

S. V. LUCAS.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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