US1794320A - Adjustable shuttle check - Google Patents

Description

Feb. 24, 1931. F, RAMM 1,794,320

' ADJUSTABLE SHUTTLE CHECK Filed May 6. 1929 l'mnenwt 8 tion Serial No. 265 123, filed March 28 Patented Feb. 24, 1931 UNITED STATES v @FFWE g FELIX RAMM, 0F PITTSFIELD, MAINE ADJUSTABLE SHUTTLE CHECK Application filed may 6,

The present invention relates to improvements in adjustable shuttle checks, and has for an object to provide certain improvements over my allowed co-pending applica- 1928, and allowed February 18, 1929.

An object of the invention is to simplify the mechanism, reduce the number of parts and at the same time to secure the adjustability and resilient tension had in the device described in the former application.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claim appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views,

Figure 1 is a fragmentary perspective view showing a portion of a loom with a shuttle box and the improved tension device.

Figure 2 is a perspective view of the improved adjusting or tension lever.

And Figure 3 is a perspective view of the improved hanger member .for the adjusting lever.

Referring more particularly to the drawings, a shuttle box of conventional form is shown at 4 as having a number of cells in accordance with the usual practice; and 5 designates the rod by which the shuttle box is customarily shifted.

Each cell of the box is provided with a binder. For purposes of illustration, I have shown the binder 6 as pivoted at one end in ears 7 of the shuttle box, the pivot pin being indicated at 8. These binders or swells 6 are provided upon their intermediate portions each with a pair of space ribs 9 and 10 forming longitudinally extending guideways for receiving the free tapered end of spring adjusting levers 13. The levers are more particularly shown in Figure 2 and are made of spring steel or some other appropriate material so as to bear resiliently against the individual swells or. binders. The levers are formed with offset portions 14 to extend about the pivot pins 8 of the swells or binders and with the perforations 1929. Serial No. 360,835.

is secured to the shuttle box. At their outer ends the arms 20 are formed with perforations 22 to receive the pivot pins 23 passing in common through all of the arms and through the openings 15 of the various spring adjusting levers l3.

In the .use of the device, it will be understood that the inner ends of the set screws 17 engage a portion of the shuttle box 4: or some fixed part. By turning the set screws 17. in

one or the other directions, the tension developed by the spring levers 13 upon the swells or binders 6 may be adjusted. Once the adjustment is effected, the lock nuts 18 may be tightened against the tail pieces 16 to hold the adjusting screws 17 against casual turning. Due to the tapered forms of the spring levers 13 and the micrometer adjustment of the set screws 17, a fine adjustable tension may be imposed upon the swells and binders 6. The ribs 9 and 10 will retain the free. tapered ends of the spring levers 13 in place while permitting of the free movement of these levers in the guideways between the ribs occasioned by the movement of the swells or binders 6 or the adjustment of the set screws 17. Of course the. binder orswell acts upon the shuttle in the usual manner. In other words, the steelsprings 13 act on the binders or swells and the binders and swells in turn act on the shuttles. Minute adjustment had withthe present device is very important, as it dispenseswith the present practice in mills of bending the binder into shape, and readj usting and reben ding the binders as the shuttles wearlsmaller. This bending operation requires considerable time of skilled operatives and results in the final breaking of the binders from the repeated bending operations. Moreover, theimproved device will stop the filling knocking off which involves a considerable savings in waste. The device will also save the picker on account of the very minute adjustment possible with the set screws; and it will stop the kinks due to shuttles bouncing back. The invention will also do away with the necessity for hammering the binders, which results in the breakage of shuttles and in many cases the excessive bending of the binders. Then, too, slamming with its attendant breakage and jarring of the timing, the head motions and the bearings, is avoided. The invention will re- 7 duce loom breakage and proportionately increase production. Furthermore,the present invention dispenses with the springs 12 and the pin 11 utilized in conjunction with the device shown and described in the copending application heretofore referred to; Thus with fewer parts the present device secures the same general aim and possesses a superior tension and adjustment throughout the length of the long spring steel adjusting levers 13 which are very sensitive and which bear directly against the binders or swells 6'. By withdrawing the pins 23 from the bearing arms, all of the adjusting levers 13 may be readily demounted and replaced and accessis quickly given to the binders.

It will be obvious that many changes in the construction, combination and arrangement of parts could be made, which could be used without departing from the spirit of my invention, and I do not mean to limit the invention to such details, except as particularly pointed out in the claim.

Having thus described my invention,.what I claim and desire to secure by Letters Patent of the United States is:

In combination witha loomframe having a shuttle box thereon provided with the usual cells and binders mounted therein, a bearing member mounted on one end portion ofthe shuttle box beyond the pivoted ends of the binders and having outstanding vertically alined bars and horizontally disposed arms carried by the bars thereby, providing spaces registering with the cells of the shuttle box, an adjustable shuttle check comprising a series of spring levers one fo'r eachbinder,

each spring lever having a tapering outer end adapted to slidably and resiliently bear against the outer side of its adjacent binder and having an inwardly offset tail piece extending through the respective space in the bearing number, a pivot pin extending through said arms and through the tail pieces of the levers to pivotally supportthe. same, and adjusting screws extending through said tail pieces for adjustment against the loom frame to tension the tapering ends of the levers against the binders, and lock nuts on p the screws for locking same in adjusted posi tion, whereby an adjustable tension is provided for checking the shuttle.

FELIX RAMIM.

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