US928802A - Shuttle-operating device. - Google Patents

Description

G. S'CHWABE. I SHUTTLE OPERATING DEVICE. APPLIGATLON rum) APR. 23,' 1908.

928,802. Patented July 20. 1909;

2 SEEETS-SHEET 7 I a i a i k Q g @g n; 5 1x I I G. SGHWABE.

SHUTTLE OPERATING DEVICE.

APPLICATION FILED APR.23, 1908.

Patented July 20, 1909.

2 SHEETS-SHEET 2.

j To aZZ whom "it may concern:

enone SGHWABE, or BIELITZ, AUSTRIA-HUNGARY.

' snur rnn ornsh'rrne nn'vrcn.

no. e2s,so2. Specification of Application filed April 23,

, Be it'lrnown that I, GEoRe- SonwABn, a

subject of the Emperor of Austria-Hungary, and a resident of Bielitz, Austrian Silesia,

part of the Austro-llungarian Empire, have invented new and useful improvements in Shuttle-Operating Devices, of which the following is a specification.

This invention comprises a combination of the directly acting driving device with spring acting drive, inasmuch as on the one hand the spring action is utilized in the be ginning of the driving operation, in order to reduce the power required, while on the other hand it produces abraking action upon the driving parts before thex termination of the driving operation, in such a 'manner that the action of the mass of the parts, that picker lever and the is to say their inertia, is partly obviated.

This device is shown in Figures 1 to 3,

Fig. 1 showing the position before the beginning of the throwing of the shuttle; Fig. 2

illustrates the position when the throwing of the shuttle has been completed, while 1Fig. '3 is an enlarged side view of the coupv I r The sector 1, (Fig. 1, position before starting the throwing of the shuttle), which is connected by the rod 2 to the picker mechanism, is connected in its upper part at 3, with a spiral spring 4, acting as a lever arm and which is secured at 5, to the loom itself. On the sector 6,'on the op osite'side of the loom, which is connected by the rod 7, to the sector 1, similar connection is made with a spiral spring 8, which is however not secured to the upper part of the sector 6, but at a point-9, which is in line with the fastening point 10 and the pivoting point 11 ofthe sector 6, so that the leverage of the sector 6 is reduced to oil, this osition being termed the dead point or dead center. The pawl 12 connects the sector 1, or the lever 6, respectively, to the picker arm 13, which acts upon the picker stick 14 by means of the wooden pull rod 16 with safety device and leather loop 17. f

The safety device against thebreaking of the picker mechanism for power-looms, relates articularlyto such safety mechanisms as wil prevent the breaking of the parts by interrupting the connection between the picker stick. By means of the particular arrangement of parts of the pull rod and connections, the parts are disconnected in case of an obstruction, while,

after the finishing of the stroke, the connection is restored.

As soon as, by means of the operating mechanism, the pull rod 2 is drawn upward in the direction of the arrow,- (Fig. 1), the sectors 1 and 6, (Fig.2), have 2; corresponding movement and the picker arm 13 is also moved by means of the pawl 12, the said arm being connected to the picker stick 14 which operates the shuttle. This allows the extended spiral spring4 tocontract, resulting in a reduction o1 the amount of power required for the throwing of the shuttle. At the same time, however, tension is being put on -the spiral spring 8, which is removed from its inoperative position, (Fig. 1), by

- the movementof the sector 6, the said spring opposing a strong resistance in the position according to Fig. 2, to the forward movement, which resistance is still increasedby the fact that the spiral spring 4, on the other hand, has been moved into a position in which it does not operate the sector 1, after hhe picker movement has been eflected,

Iiiasmuch as the spiral spring 8 does not begin to exercise its ower before the picker movement has attained-its highest s eed which takes place at about half the stro e of the picker mechanism, the operation of the spiral spring 4 is not in'any'way interfered with thereby. The spiral spring 8. being extendedafter the completion of the stroke, partially overcomes the inertia of all the different parts of the picker mechanism, so that jerking.

After the completion of the throwing of. the shuttle, the'operating mechanism moves the pull rod 2 back in the opposite direction, and also the sectors 1 and 6, the picker arm 13 and the picker stick '14. During this time, the sector 1 puts tension on the spiral spring 4, While the sector 6 allows contraction until the shuttle is thrown again.

The above mentioned detachable connection between the picker lever 13 and the picker stick '14 is effected by securing the sliding part 16 to which the leather loop 17 connected to the picker stick 14, is fastened, detachably in a guiding sleeve or shoe 18 which is pivoted by means of a stud 15 to the picker lever 13. The sleeve :18 is proyided at 19 with a flat'spring 20, engaging with a corof the'spiral spring 8. The sectors 1 and 6 will then remain in this position,- (Fig. 1),

the picker movement takes place without responding groove 21 on the sliding part 16,

thus effecting the connection between thesliding part 16 and the sleeve 18. The'shuttle drivlng mechanism transfers-its movement y means of this connection in the o'rdifi naryman'ner. from the picker lever to the by the disengagement rojectedifrq'rn the sleeve 18 until-the picker 7 osition,

' reakmg see Figsl '2 and 3, and by this rne'ans ed. The picker lever 13, turned to 1ts initial position, pushes the guid- .struction is stick,14, the fiat springb 10.

.the sleeve .-18' continues 1ts movement, and

picker stick 14. When, however, an ob: placed in'the path of 'the picker ecomes disengaged from the groove 21, the picker arm 13 with the sliding part16 which hasbecome released of the'fiat spri 20 is ever 13 has-. assumed its extreme of the shnttle driving niec'hamsm is prevent- .which is now remg sleeve 18, which is mounted thereon, upon the sliding part16 which is able to opsm ultaneously coincides necting the support with the pivot of the sec-- 35 crate upon the picker stick 14, until the flat spring 20 enters again into the groove 21.

I-claim:

rst pivoted sector, a second pivoted sector, a connecting rod, a support intermediate the sectors, a first spring hung to the first sector and-support, a secon'd'spring hung to the second sector and support, the first spring di 30 verging from a line connecting the support with the pivot'of the first sector at the begin- I ing of the stroke, while the second spring with a line con- A shuttle operating device comprising a 25

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