US1256038A

US1256038A - Lace-braiding mechanism.

Info

Publication number: US1256038A
Application number: US9281016A
Authority: US
Inventors: Robert Carl Rahm
Original assignee: Textile Machine Works
Current assignee: Textile Machine Works
Priority date: 1916-04-22
Filing date: 1916-04-22
Publication date: 1918-02-12
Anticipated expiration: 1935-02-12

Description

.R.c.-RAHM.

LACE BBAIDING MECHANISM.

APPLICATION FILED APR-22,-l916- Patented m. 12, 1913'.

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noBErt'r'oARn'nAiiM, orf'wYoivriss'INe, PENNSYLVANIA, assIGNon 'ro TEXTILE MACHINE WORKS; or WYOMISJSING, PENNSYLVANIA, CORPORATION or PENN- sYLv-ANIA.

LKCE IBRATIJ ING MECHANISM.

Specification of Letters lateilt.

" Patented rep; TQQTQJlfi.

To all whom it may concern:

Be it known that 1, ROBERT CARL RAHM,

a. citizen of the United States, residing at.

Wyomissing, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Lace- Braiding Mechanism, of which the following is a specification.

My invention relates to lace-braiding machines in which the bobbin carriers are driven in intersecting race-circles by concentric driverdisks to which intermittent rotary movement is imparted as controlled by a jacquard or pattern mechanism; and it consists in providing improved means for imparting such determined carrier movements, as fully described in connection with the accompanying drawing, and the novel features of which are specifically pointed out in the claims.

Figure 1 is a plan. view of a portion of the race-way plate of a lace-making machine having my invention applied thereto; several of the intersecting race-circle openings being shown, and different of the parts which are mounted upon the central posts being illustrated in the several openings so as to clearly reveal detail construction.

Fig. 2 is a cross-sectional view on the line 2-2 oi Fig. 1.

The top and bottom plates 5 and 6 of the machine indicated are arranged as usual,

with intersecting race-

circle openings

7, 7 7 in the top plate, and centrally fixed

posts

8, 8, 8 on the bottom plates; upon which posts the carrier-driver disks 9, 9, 9 are rotatably mounted in the openings 7 so as to be intermittently driven by the lower drivegears 10 on the posts. The several carrierdrivers 9 with their coacting carrier-rest recesses 11, 11 and carrier-

engaging horns

12, 12, operate the bobbin-carriers 15 in the usual well known manner for lace making.

In my improved construction shown, the drive-gear 10 and carrier-driver 9 upon each post 8, are independently rotatable upon the latter, and are provided with sleeve-extensions, 16 and 17 respectively, which abut at 18, and provide a full length bearing of said parts upon the post 8. Upon these abutting sleeve extensions is rotatably mounted a clutch sleeve 20, which is slidable axially thereon. This clutch sleeve is provided at its lower end with clutch projections 21 adapted to engage or disengage like projections 22- on the drive gear 10; and at its upper end with driver-engaging extensions 23, which pass through openings 24 in the carrierdriver 9 so as to provide rotary connection with the latter. The clutch sleeve 20 is moved into or out of engagement with the cooperating drive-gear clutch member 10, by means of a vertically movable forked arm 25 engaged in a groove 26 thereof; said forked arm being fixed to a vertically guided spindle 27, which is normallypressed upward by a spring 28, and intermittently moved downward by a jacquard-operated lever 30, as usual. When pressed upward to disengage it from the drive-gear clutch member, the clutch sleeve 20 is brought into locking engagement with a fixed'stop device 35, adapted to enter one or other of oppositely located peripheral recesses, 36, 36, provided in the lower flange 37 of the sleeve; said stop 35 having a supporting standard 38, and an apertured base portion 39 rigidly secured to the bottom plate 6 of the machine and serving as a bearing for the sliding fork-spindle 27, as indicated.

It will be seen that my improved construction and arrangement of jacquard-controlled carrier-drive mechanism, provides most satisfactory guiding and wearing surfaces for the sliding and rotating parts, in connection with fixed means, operative through the sliding clutch sleeve, for automatically holding the carrier-driver 9 in determined positions as desired.

"What I claim is:

1. In a lace-making machine comprising a raceway plate havingintersecting race circle openings, and a central post for each opening; a carrier driver provided with a clutch -engaging recess, and a drive gear clutch member, independently rotatable on said post; an axially slidable clutch member having its top portion constantly engaged in said driver recess and its bottom portion. adapted to intermittently engage said drivegear member; movable means for operating said slidable member; and fixed means adapted to retain said driver in determined rotary position when said slidable member is disengaged from the drive-gear member.

2. In a lace making machine comprising a race-way plate having intersecting race-cir cle openings, and a central post for each opening; a carrier driver provided with a clutch-engaging recess, and a' drive-gear its top portion constantly engaged in saidv driver recess and its bottom portion adapted to intermittently engage said drive gear member; movablemeans for operating said shdable member; and fixed means adapted to retain said driver 1n determlned rotary position when said slidable member is disengaged from the drive-gear member.

In testimony whereof I affix my signature. ROBERT CARL RAHM Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G."