US1139506A

US1139506A - Automatic embroidering-machine.

Info

Publication number: US1139506A
Application number: US71359712A
Authority: US
Inventors: Karl Eggart
Original assignee: Adolph Saurer AG
Current assignee: Saurer AG
Priority date: 1912-08-06
Filing date: 1912-08-06
Publication date: 1915-05-18
Anticipated expiration: 1932-05-18

Description

K. EGGART.

AUTOMATIC EMBROIDERING MACHINE. APPLICATION FILED AUG.6.1912.

1 139,,56@ Patented May 18, 1915.

3 SHEETS-SHEET I.

K. EGGART.

AUTOMATIC EMBROIDERING MACHINE.

7 APPLICATION FILED AUG-6,1912.

mmmao Patented May 18, 1915.

3 SHEETS-SHEET 2.

Wneww? 5. ZZVM THE NORRIS PETERS c0. FHOT0-LITHO.. WASHINGTON, D. c.

K. EGGART. AUTOMATIC EMBROIDERING MACHINE.

APPLICATION FILED AUG-6.1912.

1 139 56 Patented May 18, 1915.

3 SHEETS-SHEET 3.

THE NORRIS PETERS CO4, PHOTO-LITHO., WASHINGTON D. C

UNITED TATE PATENT @FFICE.

KARL EGGAR'I, OF ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM 0F ADOLPH SAURER, 0F ARIBON, SWITZERLAND.

AUTOMATIC EMBROIDERING-MACHINE.

specification of Letters Patent.

Patented May 18, 1915.

Application filed August 6, 1912. Serial No. 713,597.

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 Automatic Embroidering-hilachines; 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 tomake 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.

In the automatic embroidering machines as hitherto constructed the needles which are not in front of a hole in the jacquard card are displaced by the relative movement between the jacquard card and a member carrying the needles or the needle bars, whereat pressure is transmitted from the jacquard card by means of the needle bars to the blades, which cause the adjustment of the automatic mechanism. The terms blades or pushing blades comprise all such members which in a well-known manner according to the perforations of the pattern card produce motions of difierent amplitudes in the automatic mechanism, which motions are transmitted to the embroidering frame, as described in U. S. Letters Patent No. 1,059,880, granted to V. Kobler,-

April 22, 1913. The pressure or counterpressure of the card actuates in this manner the needle bars as well as the blades. On the contrary according to this invention the pressure or counter-pressure of the card actuates the needles only, but is not transmitted to the blades, which are displaced as usual according to the displacement of the needles, however by separate means. By discharging the card in such a manner among other advantages a construction can be obtained in which the displacement of the needles takes place at another time than the displacement of the blades. As with other automatic embroidering machines also in the present construction adjacent blades are separately displaced only, while the unmoved blades shall remain in their position. of rest. In practice the drawback occurs that by shakes, friction, wearing and the like wrong blades are unintentionally moved with others. In order to remove this drawback in known constructions of automatic embroidering machines special arresting means are provided which are separately to be impelled. In the construction cording to this invent-ion the means which make possible to displace the blades independently from the jacquard card, are simultaneously used to secure the blades against unintentional movement. Ihe special arresting means are avoided in this manner.

Illustrative embodiments of my invention are represented by way of example in the accompanying drawings, wherein:

Figure 1 is a partial view of a jacquard mechanism embodying my invention, parts thereof being shown in elevation and parts in vertical section. Fig. 2 is a View similar to Fig. 1, of a modification. a View similar to Fig. 1, of a second modification. Figs. 4% and 5 illustrate different positions of needle bars and blades of the form of construction shown in Fig. 3. Fig.

6 is a view, also similar to Fig. 1, of a third modification. Figs. 7 and 8 illustrate different positions of parts of Fig. 6. Fig. 9 is a side elevation of parts of the jacquard apparatus. Fig. 10 is a plan view of the same.

In the first example 1 designates the perforated jacquard card which is moved vertically and around the drum 2 by wellknown means. The drum 2 and a pin 3 are mounted on a slide 5 which is horizontally movable on stationary ways 4i. The slide 5 may be impelled in the manner de scribed in application for Letters Patent, Serial No. 658600, filed November 4th, 1911. At the front the needle bars 6 carry the needles 6. Connecting members 9 are pivotally mounted on a frame 8 which carries the blades 7. The frame 8 is vertically reciprocated by means of a double-armed lever 10 which is rocked by a cam 18, Figs. 9 and 10, mounted on a shaft 1% and engages the frame by a roller 11. The shaft 12 is rotated by any suitable means not shown. The needle bars can be displaced horizontally but not vertically.

The device operates as follows: If the slide 5 is moved toward the right together with the card 1, the drum 2 and the pin 3, and if there is no perforation in the card in front of the needle, the needle bar is also displaced by the card from the position shown in dotted lines in Fig. 1 toward the Fig. 3 is also.

right into the position shown in full lines in Fig. 1. By the upward movement of the frame 8 the member 9 comes in contact with the needle bar 6 that has been displaced by the car 1 and by moving the frame farther upward the blade 7 is displaced toward the right into the working position, as shown in dotted lines. moved downward, the slide 5 is displaced to the left together with the card 1 and the drum 2 and moves by means of pin 3 the needle bar back toward the left in normal position. If however a perforation in the card 1 is in front of the needle on the needle bar 6 when the card moves toward the right, theneedle-bar is not displaced and in consequence thereof at the upward movement of the frame 8 the connecting link does not touch the needle-bar but moves upward beworking period of the blades, so that the time hitherto required I for adjusting the needles may be used for producing other movements. This is of great advantage for i a smooth motion of the automatic mechanism. Another advantage of the separation of the adjustment of the needles from the adjustments of the blades is the saving of the card which in the hitherto known constructions became damaged and useless in a short time by the repeated blows on the ends.

' of heavily connected needles and blades.

As shown in big. 2, the separation of the adjustment of the needles and the adjust ment of the blades does not require the use of connecting links 9. In this construction the needle-bars may be secured in two different positions by means of a slide 12, which is reciprocated by'means of alever 12 worked by a cam 19 on the shaft 12* (Fig.10). The frame 8 is vertically recip rocated in the above described manner. If the slide 5 moves toward the right and no perforation in the card 1 is'in front of a.

. needle-bar 6, the latter is moved by the card toward the right. The slide 12 which has been in -a raised position before, is now moved downward by lever 12, Figs. 9 and 10, into the position shown in Fig. 2 and arrests all needle-bars.

At the subsequent upward movement of the frame 8;,the blade 7 comes in contact with the corresponding needle-bar 6 and is' displaced toward the Thereafter the frame 8 is notch 15 being moved against theedge w of right by the inclined edge g moving on the inclined edge m. The separation of the adjustment of the needles from the adjustment of the blades renders it possible to adjust the needles not during the working period of the blades but during the period of moving the embroidering frame, because during a large part of this latter period the blades are at rest.

In the construction shown in Figs. 3 to 5 three-armed levers 9 acting as connecting members are pivoted to the frame 8 which carriesthe blades. Each arm 9 of the le vers engages in a notch 7 of the blade whereby a flexible joint is formed in asimilar manner as shown inFig l. -The arms 9 and 9 are symmetricallycurved upward toward the needle-bars 6. The frame 8 is vertically reciprocated as described above, while the needle-bars 6 are movable horizontally but not vertically. 12 designates the slide for looking all the selected and unselected needle-bars. A stop 13 prevents the blades frommoving too much to the left, while a member 14 acts to move the blades 7 back to the left. The member 14 is horizontally reciprocated by. means of a cam 20 'j v on the shaft 12 and a spring 21, Figs. 9 and 10. Each needle-bar is providedat' the rear end with a notch 15 and'with a projection i 16 at the front. If the card is movedto the right those needle-bars which are not in front of a perforation in the card are moved 7 to the right.(Fig. 3). If then the frame '8 1s moved upward (Fig. 1) the projection 16 blade 7 back toward the member 14: by

means of the arm 9%. The arm9 simulta- 4. I V

Ileously enters the notch 15"o-f the needle-; bar 6 to prevent an undesired adhering'of theblade 7. By this means'this blade 7 is posltively moved to the right and secured, in

the extreme position. Those needle-bars, on L the contrary that are not displaced by the card 1 are in the perforations in the'card (Fig. 5) and the arms 9 and 9 are moved against the lower surface of these needlebars whereby the/corresponding blades7 are 1 prevented from' performing an undesired movement.-

of each such needle-bar presses on the-arm I 7 9 of the corresponding lever andmoves the In the construction according to 6 V to 8 each needle-bar is provided with a tapered notch 15 and each blade with .ata-

peredprojection 7 and a notch 7 In Fig.

6 a needle-bar is shown to be displaced to the right. By moving the frame 8 upward the blade-7 is displaced to the right against a stop 17 by the edge y of theprojection7 5 moving on the edge w of the notch 15 (Fig.

Thebladeswhich are not displaced are secured 1n the, foremost position in which they touch thestop 13 bythe'edge of the the projection 7 (Fig. 8).

It will thus be seen that the needle bars 6 in all the forms illustrated operate as cams to control the movement of the blades, either indirectly through an intermediate element, as 9, Figs. 1, 3, 4: and 5, or directly, as in Figs. 2, 6, 7 and 8. In all of the diflerent forms the blades are moved independently of the needle bars, 2'. 6., to and from the needle bars.

I claim:

1. In an automatic mechanism for embroidering machines the combination with a jacquard card; of two parallel sets of longitudinally movable elements, one set being needle bars selectively controlled by said card, and the other set being blades controlled by said bars, means on the opposed longitudinal edges of the bars and blades arranged for cooperation, and mechanism to bodily move one set of elements against the other to cause the coiiperation of said means to longitudinally move elements of the set so bodily moved in accordance with the selection effected by the card.

2. In an automatic mechanism for embroidering machines, a jacquard card, needle-bars directly to be moved by laterally moving the jacquard card, blades for transmitting movement according to the displacement of the needle-bars to the impelling means of the automatic mechanism, a vertically movable frame carrying the blades, the needle-bars and the blades being provided with inclined edges on adjacent ends in order to displace raised blades by needle-bars displaced by the card.

3. In an automatic mechanism for embroidering machines, the combination with a jacquard card; of needle bars selectively controlled by said card, a vertically movable frame, blades in the frame corresponding with the bars, and means actuating the blades in accordance with the selection of the bars upon the vertical movement of the frame.

4. In an automatic mechanism for embroidering machines, a jacquard card, needle-bars directly to be moved by laterally moving the jacquard card, blades for transmitting movement according to the displacement of the needle-bars to the impelling means of the automatic mechanism, a vertically movable frame carrying the blades, the needle-bars and the blades being provided with inclined edges on adjacent ends in order to displace blades by needle bars displaced by the card and to arrest the blades in their extreme positions.

5. In an automatic mechanism for embroidering machines, two sets of longitudinally slidable elements arranged in two parallel planes, one set being jacquard needle bars and the other set being jacquard blades, means to move the blades transversely of their longitudinal movement to and from the needle bars, and means to longitudinally move the blades from the bars upon said transverse movement of said blades.

6. In an automatic mechanism for embroidering machines, the combination with a jacquard card, needle bars selectively controlled from the card, a blade for each bar mounted independently and parallel to said bar, and means to simultaneously move the blades to effect the direct control thereof by the needle bars.

7. In an automatic mechanism for embroidering machines, the combination with a jacquard card, needle bars selectively controlled by the card, means for locking the bars after each selection, a blade for each bar and means to simultaneously move all the blades against the locked bars to move said blades in accordance with the selected positions of the bars.

8. In an automatic mechanism for embroidering machines in combination; two parallel sets of longitudinally movable elements, one set being jacquard card controlled needle bars, and the other set being blades, means to lock the bars after their selection, a movable frame in which the elements of one set are longitudinally movable, and means operating after said locking operation to longitudinally move the blades when one set of elements is moved toward the other by the frame.

9. In an automatic mechanism for embroidering machines, the combination with a jacquard card, needle bars selectively controlled by the card, blades, end stops for the blades, cam surfaces on the bars and coiiperating cam surfaces on the blades, whereby when said blades and bars are brought into engagement said blades will be positively moved and temporarily held against the stops by said cam surfaces in accordance with the selection of the blades.

In testimony that I claim the foregoing as my invention, I have signed my name in 110 presence of two subscribing witnesses.

KARL EGGART. Witnesses:

Josnrrr SUKEY, RANDALL ATKINSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.