US718529A - Weft-operated controlling device for looms. - Google Patents

Description

PATENTED JAN. 13, 1903.

. F. SAMEGK. WEPT OPERATED CONTROLLING DEVICE FOR LOOMS.

APPLICATION FILED APR. 12, 1902.

rrn Tamas a'rn'r Fries.

FRANZ SAMEOK, OF TANN, NEAR DIIR-NTEN,- SWITZERLAND, ASSIGNOR TO MASOHINENFABRIK RI ITI, VORMALS OASPAR HONEGGER, OF RI JTI, CANTON OF ZURICH, SWITZERLAND.

'WEFT-OPERATED CONTROLLING DEVICE FOR LOOMS.

SPF-.GIFIGATION forming part of Letters Patent No. 718,529, dated Januar 13, '1903.

Application filed April 12.

To aZZ whom it nuty concern:

Be it known that I, FRANZ SAMECK, a citizen of Austria-Hungary, residing in Tann, near Diirnteu, in the canton of Zurich, Republic of Switzerland, (whose post-office address is Tan'n, near Diirnten,) have invented certain new and useful Improvements in Weft-Operated Controlling Devices for Looms, such devices being operated upon the emptying of the shuttle; 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, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

I have applied for patents in the following countries: France, on February 1, 1902; Italy, on February 4, 1902; Germany, on February 6, 1902; Switzerland, on February 7, 1902; Austria, on February 8, 1902, and Great Britain, on February 14, 1902.'

This invention relates to controlling devices for looms, such devices being operated upon the emptying of the shuttle to control the loom eitherby stopping it as the thread or yarn on the shuttle comes to an end or in the case of automatic looms by mechanically exchanging the shuttle for a full one.

The invention relatesto the class of controlling devices in which the shuttle is provided with a slot at the side corresponding with an opening in the front of the shuttlebox which is carried by the lay, this opening permitting a feeler-finger to pass into the interior of the shuttle when the latter, together with the lay and box,performs its forward movement.

The accompanying drawings illustrate my invention. t a

Figure 1 is a plan, partly in section, of the device, the shuttle-bobbin being full, Fig. 2 being a similar View showing the bobbin exhausted and the parts in a diiferent position; Fig. 3, an end View of Fig.1 with a stop-finger omitted to show parts at the rear of same; Fig. 4, a section of Fig. 1 on line 00 Fig; 5, an end view of Fig. l with the stop-finger in place; Figs. 6, 7, and 8, corresponding views Serial No. 102.579. (No model.)

to Figs. 3, 4, and 5, but with the parts in the position shown in Fig. 2.

The feeler-finger a is arranged to rock laterally on a pivot-pin d, carried in a slide e movable in a guide g, carried by the front beam, which guide is normally pressed by a springf in the direction of the shuttle. The

feeling end of the finger is provided with a few small teeth a' and also a rounded and smooth edge ed, as shown, adapted to slip when striking the bare bobbin ofthe shuttle.

Attached to finger a is an arm or lever h, a coil-spring In, Fig. 4, being placed around the pivot-pin d and bearing with its free end on lever 77. to keep the finger a and lever h in their normal position, which is that shownin Fig. 1.

A shaft Z'is carried in suitable bearings in the front beam and is provided at one end with a finger m and at the other with a cam or disk n, a coil-spring 01 around the shaft tending normally to turn it into the position shown in Fig. 1, the finger n, Figs. 2, 5, and 8, abutting against an adjustable stop and limiting its movement.

The fingermcarries an adjusting-screw the end of which bears against the lever h, and a pivoted catch 0 bears by a projection on same on the cam or disk at, the free end of the catch being normally above and out of the path of the usual weft guard-hammer b.

The catch 0 is in the'case of looms provided with an automatic shuttle or bobbin changing mechanism connected at its pivoted end with a part operating such mechanism, so that a movement of the catch will throw it into action, or in the case of an ordinary loom it is connected with the lever o, pivoted on the beam, which lever carries the weft guard-fork and which stops the loom by relieving the spring-controlled lever 19.

In the operation of the device so long as there is su fficient tightly-wound thread on the shuttle-bobbin at the part where it comes into contact with the finger a the latter will not rock on the pin d during the working toand fro of the lay, as owing to the action of the teeth on the thread the finger a and slide 6 are driven back in a straight line at every second movement of the lay by compressing every time the spring f-that is, whenever the shuttle is in the box at that end-and during this time the shaft Z is stationary, the catch a resting by its projection on the disk or cam 92, Figs. 1 and 3, thereby allowing the Weft guard-hammer b to pass freely under it in both directions. \Vhen, however, there is no more thread on the bobbin or only the last loose windings of same on the part touched by the finger, the teeth of the latter will no longer have a hold on the bobbin, owing to which the springfhinders the slide a to move backward and the finger will rock on pin (1 at the next movement of the lay by overpowering the spring 70 and turn into the position shown in Fig. 2, so that the lever It will turn shaft Z, and with it the disk or cam 11, which latter will allow the catch 0 to fall, so that on the next backward movement of the weft guard hammer b the latter is caught, the movement of the catch 0 at the same time effecting one or other of the operations before named, so that in the case of a non-automatic loom the stoppage will be effected before the shuttle is quite exhausted, by reason of the small winding of thread which may be left at the time that the device comes into operation.

It will be seen that the device comes into operation by reason of or when the bare spindle is presented to the finger and is not operated, as is usual in devices of this kind, only by the decreasing diameter of the spool.

Having now particularly described and ascertained the natu re of the said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In a device of the class described, the combination of the lay, a shuttle, a bobbin, a device for stopping the loom, a pivoted feelerfinger capable of yielding in a direct line with, and movable by the forward movement of the lay and provided with teeth on its end adapted to engage with the thread in the shuttle carried by such lay and a smooth rounded part adapted to slip when striking the bare bobbin of the shuttle after the thread is nearly exhausted so that it will turn and operate the said device for stopping the loom or an equivalent device, substantially as described.

2. In a device of the class described and in combination, the lay, the shuttle, a bobbin, stop mechanism, a pivoted spring-controlled finger, a lever carried by same, a yielding guide for carrying such parts, a shaft, a finger on said shaft adapted to be struck by the lever, a cam ordisk movable from such shaft and a catch normally held up by such cam or disk and controlling the stop mechanism of the loom or an equivalent device substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 29th day of March, 1902.

FRANZ SAMEOK.

Witnesses:

A. LIEBERKNECHT, HERMANN HUBER.

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