US1210776A

US1210776A - Jacquard embroidery-machine.

Info

Publication number: US1210776A
Application number: US811145A
Authority: US
Inventors: Karl Eggart
Original assignee: Adolph Saurer AG
Current assignee: Saurer AG
Priority date: 1913-06-10
Filing date: 1914-01-09
Publication date: 1917-01-02
Anticipated expiration: 1934-01-02

Description

K. EGGART.

JACQUARD EMBROIDERY MACHINE.

APPLICATION FILED JAN-9,1914.

Patented Jan. 2,1917.

3 SHEETSSHEETI Wiineswes:

K. EGGART.

.IACQUARD EMBROIDERY MACHINE.

APPLICATION FILED IAN-9,1914. 1,210,776. Patented Jan. 2,1917.

3 SHEETS-SHEET 2.

M KOWQ. m

K. EGGART.

MCQUARD EMBROIDERY MACHINE.

APPLICATION man 1AN.9. I914.

Patented Jan. 2, 1917.

3 SHEETS-SHEET 3- fave/z 21 07 il iiizessas;

KARL EGGART, OF ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM OF ADOLPH SAURER,

0F ARBON, SWITZERLAND.

JACQU ARD EMBROIDERY-MACHINE.

1,210,776. Original application flied June 10, 1913,

To all whom it may concern:

Be it known that I, KARL EGGART, a subject of the Emperor of Germany, residing at Arbon, Switzerland, have invented new and useful Improvements in Jacquard Embroidery-Machines; 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 or figures of reference marked thereon, which form a part of this specification.

This invention relates to jacquard embroidering machines and has for its object to provide improved devices whereby the stitch forming mechanism, at the time of a change from embroidering to a special function, such as boring, may be thrown out of engagement without requiring the rotation of the main driving shaft to be stopped, as has been usual heretofore.

In the improved machine there are placed side by side on the driving shaft differently curved cams for the operation of the special function mechanism, such as the boring mechanism, and means are further provided whereby, simultaneously with the disconnecting of the needle actuating mechanism, the special function mechanism may be disconnected from operative relation with one cam into inoperative relation with the other cam, without requiring the rotation of the driving shaft to be stopped.

In the drawings-Figure 1 is a View in end elevation, partly in section, of a jacquard embroidering machine equipped with the invention, the jacquard mechanism itself being removed. Fig. 1 is a detail View of the upper right hand portion of the mechanism shown in Fig. 1. Fig. 2 is a top view of the lower portion of the mechanism shown in Fig. 1, with parts in section, the position of the jacquard mechanism being also shown in part. Fig. 3 is a detail view of a double cam. Fig. 4 is a View partly in section on the plane indicated by the line AB of Fig. 1, the jacquard mechanism being also shown in part. Fig. 5 is a detail view in section on the plane indicated by the line CD of Fig. 1;

1 is the main shaft of the embroidering machine, which, depending upon the speed it is to have, can be driven from the shaft 6 Specification of Letters Patent.

Patented J an. 2, 1917.

Serial No. 772,774. Divided and this application filed January 9, 1914. Serial No. 811,145.

by means of the

gears

2, 3 or 4, 5. On the shaft 1 there is fixedly mounted the needlecam 7, in whose groove there engages a roller 9, rotatably mounted on an axis 10, which is longitudinally slidable in a bar 11. The bar 11 is connected at its upper and lower ends to cranks 12. These cranks 12 are fixedly mounted on a shaft 13, to which are secured levers 14, jointed to a rod 15, whereby the needle bars 16 can be moved to and fro, the needle bars 16 are movably mounted through bearings 15 on fixed rods 15". On the shaft 1 there is also fixedly mounted a cam 17 for operating the minor thread guides, and secured to this cam is a circular disk 18. With the double cam thus constituted there cooperates a roller 19, which is rotatably mounted on an axis 20, which is longitudinally slidable in a fork 21. This latter is carried by a rod 22, to which are connected levers 23, rigidly secured to the minor thread guides 24. Mounted on the shaft 1 is also a cam 25 for imparting motion to the major thread guides. This cam has a circular disk 26 rigidly secured to it, so as to form a double cam, and with the latter there engages a roller 27, whose axis 28 is slidable in longitudinal direction in a fork 29, carried by a rod 30 to which are connected levers 31, rigidly connected with the major thread guides 32. There is likewise mounted on the main shaft 1 a cam 33 for actuating the fabric pressers. This cam cooperates with a roller 34, which is mounted in a fork 35 without being capable of sliding axially, while the fork itself is carried by a rod 36. The ends of the rod are connected to levers 37. the other extremities of which are mounted on shafts 38, which carry the fabric pressers 39. Also mounted on the shaft 1 is a grooved cam 40 for the operation of the shuttles. This cam 40 has two adjacent grooves 79 and 80. With one or the other of these grooves there engages a roller 41, which is axially slidable on a lever 42, which vibrates on a stationary pin 43. This lever 42 is connected by a rod 44, with a bent lever 45, which is connected to a rod 46, rigidly connected with the shuttle actuators 47. The roller 41 is rendered axially slidable by a pin 48, which oscillates on a pin 50. To the pin 50 there is connected a rod 74. The shaft 1 has further mounted on it a grooved cam 55, with which there coiiperates a roller 56. The latter is mounted with capability of axial sliding in a lever 57 which oscillates 011 a shaft 58, on which latter there is also mounted a lever 59, rigidly connected. with the lever 57. The other end of the lever 59 is connected by a pin 60 with a lever.

bars 67, which are carried by the rods 66,

are thus reciprocated.

To the axis of the roller 56 there is connected a lever 81, which is pivoted by a pin.

82 to the arm 57, while the opposite end is connected to a rod 83, by means of a ball and socket joint, which rod 83 is connected, likewise by a ball and socket joint, with a rotatably mounted lever 84. With this lever 84 there is rigidly connected a lever 85, to

which there is connected a rod 86, whose other end is connected to a crank 87, which is rigidly connected to a shaft 88, which can be actuated from the jacquard apparatus by means of worm gearing 89, according to the pattern, in well-known manner, so that the' roller 56 can be thrown in and out of gear by the jacquard apparatus.

The operation of the improved mechanism will now be explained.

When the roller 9 of the needle cam 7 is thrown-into operative relation with the cam the roller 41 co6perates with the cam grove 80 of the disk 40, and all the various devices mentioned which are requisite for the embroidering work, that is, the needles, thread guides, fabric pressers and shuttles, are thrown into gear. Should it be desired to change from embroidering to perforating, however, all those devices which would'interfere with the work of perforating must be disengaged. This disengagement is effected according to the present invention in the following manner: The longitudinally slidable axes 10, 20, 28, upon which the rollers 9, 19, 27, are mounted with capability of rotation but not of shifting laterally thereon, are provided with slotted end-pieces or links 7 O. In the slots there engage the pins 71 of levers 73, which are rotatable on stationary pins 72, and whose other ends are connected to a rod 74. To this rod 7 4 there is connected a bent lever 75, which can'be oscillated by means of a system of rods 76, 77, 78 from the jacquard apparatus. When this occurs,-in conformity with the holes in-the pattern card, then, without the main shaft 1 being stopped, the roller 9 will be drawn out of the groove of the needle cam 7, so that the needle operating. devices will be thrown out of operation. The roller 19 will alsohbe shifted from the track 17 on to the circular track 18, whereby the minor thread guides will be brought to rest. Similarly the roller 27 will be shifted from the cam track 25 on to the circular track 26, wherefore the major thread guides will also be brought to rest. The roller41 will also .be shifted from the groove 80 and caused to enter the cam groove 79. The fabric pressers are not thrown out of operation, because the roller 34 remains in engagement with the cam 33 and because their motion in no wayinterferes with the perforating work. When now the roller 56 is caused by the jacquard apparatus to enter the groove of the perforating cam 55, the perforating can proceed, the power being derived from the main shaft, the rotation of which has not been discontinued.

This application is a division of app1i-ca-- tion Serial No. 772,774, filed June 10, 1913, on which have issued Letters Patent No. 1,118,115, dated November 24, 1914.

- Claimz' In a jacquard embroidery machine, in combination, a jacquard apparatus, perforating mechanism, a shaft, a needle cam, a,

thread-guide cam and a shuttle cam on the shaft, needle mechanism, thread-guide mechanism and shuttle mechanism operated by the cams, means actuated by the jacquard apparatus for throwing the needle mechanism and the thread-guide mechanism out of 0perative relation with the cams and for effect- KARL EGGART.