US838279A - Double-lift open-shed jacquard-machine. - Google Patents

Description

No. 838,279. PATENTED DEC. 11, 1906.-

' G. SENN.

DOUBLE LIFT OPEN- SHED JAGQUARD MACHINE.

APPLICATION FILED JUNE 19, 1905. V

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PATENTED DEG. 11, 1906.

C. .SENN. DOUBLE LIFT OPEN SHED JAGQUARD MACHINE.

APPLICATION FILED JUNE 19,1906.

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No. 838,279. PATENTED 1130. 11, 1906.

0. SENN. DOUBLE LIFT OPEN SHED JAGQUARD MACHINE.

APPLIOATION IILBD JUNE 19,1905.

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UNITED s'rarn s grnnr OFFICE.

OASIAR SENN, OF RUTI, SWITZERLAND, ASSIG-NOR TO MASGHINEN- FABRIK RIITI VORLWIALS OASPAR HONEGGER, OF RUTI, SWITZER- LAND.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed June 19,1905. $erial BIO-265,909.

T0 Lb whom, it may concern:

Be it known that I, CASPAR SENN, a citizen of the Republic of Switzerland, residing in Riiti, in the Canton of Zurich, Republic of Switzerland, (whose post-oflice address is Ruti, Canton of Zurich,) have invented certain new and useful Improvements in Double-Lift Open-Shed Jacquard-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 characters of reference marked thereon, which form a part of this specification.

I have applied for patent in Germany on March 3, 1905; in France, on May 19, 1905; in Italy, on May 23, 1905 in Austria, on May 23, 1905; in Switzerland, on May 24, 1905; in Hungary, on May 26, 1905, and in Great Britain on June 1, 1905.

Double-lift open-shed jacquard-machines in which the hooks passing from the highest to the lowest position are prevented from engaging with the rising griif-blades in that the hooks at the moment in which they would engage with the rising blades are pressed aside by bars from these blades are known. In this arrangement, however, the bars must accompany the blades throughout their whole movement and at the right moment are pushed so far aside as is necessary to press aside the descending hooks proper, so that the latter are enabled to pass by the rising blades unhindered. In order to obtain the necessary space for the displacement of the bars, either the usual space between the series of hooks must be increased or the gTiff-blades, instead of being arranged as usual the one behind the other, must be arranged the one above the other. The firstmentioned arrangement necessitates a greater depth of the jacquard-machine, and therefore longer needles, while the latter arrangement requires a greater height of the jacquard machine and correspondingly longer hooks. Both arrangements restrict the rapid working, and consequently the efliciency, of the machine.

In an open-shed jacquard-machine according to the present invention the deviating bars do not accompany the griff-blades down to the lowest position, and therefore at the moment of the pushing aside of the hooks make no side movements. The side movements of the deviating-bars are completed after the deviation of the hooks and solely for the purpose of giving room to the hooks proper in the raised position for suspension on the rising grilf-blades. This enables the griff-blades to be arranged one beside the otheras, for example, in the ordinary double-lift machinewithout it being necessary to have longer needles or longer hooks or hooks of complicated construction, whereby, above all, a greater speed in the working and a corresponding increasein efficiency of the machine is attained.

One form of construction of the invention is shown in the accompanying drawings, in Which- Figure 1 shows a front view; Fig. 2, the half of a side view, and Fig. 3 the other half of the same. Figs. 4, 5, 6, and 7 diagrammatically illustrate the method of Working.

The machine has double hooks a and b, the hooks proper of which are designated by a a) and 6 b 6 e c e are the corresponding needles; k, the cylinder Z, the cards.

The griff-blades f f f y are arranged in the usual way in the griff r, and the griifblades 7L 7L2 h h in the griff Both griffs are moved up and in common by a rocking lever m, fitted to a shaft n and connected to the frames by connectin -rods 0 0 and rods p p, suitably guided in t e frame of the machine, the arrangement being such that when the one frame is lowered the other is raised, and vice versa. The shaft n is operated in the usual way.

Above the blades f f 2 f 3 f 4 are deviatingbars g g g g, which are carried by a common yoke g. This yoke is raised on the upward movement of the grid 1' by the arms r, arranged on the latter griff, engaging stops 'w w on the yoke. Two guiding-rollers y, arranged on the yoke g, run in curved tracks 2 arranged on the frame of the machine, so that the yoke with its barsis displaced toward the left. Above the grid-blades h h h 7% there are deviating-bars i i 11 i, which are also maintained in a common support i.

This is so guided in fork-guides g g arranged on the grifi q, that it can be displaced in the same. Rollers a, fitted to the supof the bottom rest or bottom board.

Fig. 4 shows the position of the parts when the griff-blades f f and the hook at are in the lowered position and the griff-blades h 72/ and the hook I) are in the raised position. The needles 6 e are in holes in the card, while the lowered hook a rests on the bar 0 of the bottom board by means of a hook proper or catch a and the hook proper or catch 6 of the raised hook I) rests over the open-shed blade (1 The deviating-bar yoke g is inthe lowest position. The deviating-bars g g are situated vertically over the blades f f. The deviating-bar support 'L and the deviating-bars t i are in the highest position in the position shown. The bars i i are situated sidewise over the corresponding blades h if. It is now supposed in Fig. 5 that the cylinder is is rotated in the usual manner, ressed against the needles, and both the nee les 6 e are pushed forward. The displacement of the needle 6 effects a turning or pivoting of the hook at on the edge of the bottom rest-rod 0, so that the upper hooks proper, a 0, are out of the reach of the upper edge of the blades f and h. The displacement of the needle 6 effects a turning of the hook I) on the edge of the blade 72?, which is rendered possible by the arrangement of a slot in thehook bottom board 0 and by bends b and b in the hook. Fig. 6 shows the position of the parts after the cylinder has been moved back-again, and the blades f f are moving upward and the blades h h are moving downward. The hooka remains in the lowest position, while the hook I), with the blades h 72?, descends. If the blades f f 2 complete the upper half of their movement, the arms 1", &c. strike the stops w 10 &c., and the yoke g, with the bars g 9 as indicated by the arrow in Fig. 6, proceeds in advance, which causes the hook proper, b, of the descending hook I) to encounter the sloping surface of the bar g by which it is pushed to the right, so that the hook I) cannot engage with the edge of the rising blade f When the blade approaches its highest position, then the yoke g performs a side movement relative to the support 1', as indicated by arrows in Figs. 4 and 5, in order to free the space for the rising blade in the end position. On the frame g with blades h k descending the yoke t with the corresponding bars i 2' follows after without working. If the frame g has completed about half its course, then the projections s s on the yoke or support 'L strike against the projections t t on the frame of the machine, so that the support t is stopped. During this time, however, the rollers working in guides 12 '1) occasion a displacement of the support toward the right.

Fig. 7 shows the action-of the machine if the hook I) and the blades f f should pass into the lowest position and the blades h k into the highest position. In this case the bar i occasions a deviation of the descending hook proper, 12 from the edge of the rising blade k When the blades h h approach their highest position, the rest 4; is pushed by the curved guides v '0 sidewise again for the purpose above mentioned. When the frame 1' on descending has completed about half of its course, the stops 20 90 arranged on the yoke g, meet the arms t t of the frame of the machine and so hold the yoke 9 fast. In the meantime, however, the yoke is again pushed to the right by means of the rollers y y running in the tracks 2. The displacement of the yokes g and 4, may be effected in any other suitable manner.

As the deviating-bars do not accompany the griff blades throughout their whole course, the arrangement of the ordinary double-lift machine can be retained without increase in the height of the machine or the length of the hooks. As the distance to be traveled over by the blades is short, the speed of the blades and the efficiency of the machine can be increased. The speed of the blades can therefore be comparatively high, as the hooks are not, as it were, submitted to any springing and are only exposed to a very slight brake action and friction in the eyes of the needles through which they pass even in the pushed-back position of the needle, so that by downward movement they are always able to follow the blades, even at high speed of the blades. This could not be attained if the lower parts of the hooks did not work loosely in the bottom board.

What I claim is- 1. In a double-lift jacquard-machine, the combination of the griffs, sets of deviatingbars adapted to be raised by the griffs during a portion of their travel, means for imparting lateral motion to the deviating-bars, and means for arresting them during the downward travel of the griifs, for the purpose hereinbefore set forth.

2. In a double-lift,jacquard-machine, the

combination of the griffs, sets of deviating- 1 bars adapted to be raised by the grifis during a portion of their travel, means for irnparting lateral motion to the deviating-bars,

bars suspended above their respective grifi's by common yokes, projections on the yokes adapted to be engaged by the projections on the griffs during the upward travel of the latter, means for imparting lateral motion to the deviating-bars, and stops for arresting the deviatingbars during the later part of the downward travel of the grifis, substantially as and for the purpose set forth.

4. In a double-lift jacquard-machine, the combination of the griffs, sets of deviatingbars adapted to be raised and lowered by the respective griffs during part of their travel, rollers on the yokes supporting the bars, cam-grooves on the machine-frame for receiving said rollers and imparting lateral movement to the bars, and means for arrest- 1 g the bars during part of the downward l travel of the griffs, substantially as and for the purpose set forth.

5. In a double-lift jacquard-machine, the combination of the griflstwo sets of deviatingbars, slotted guideson one grid for the framesupport of one set of bars, springs securing the said frame to said grifl', and fixed stops for arresting both sets of bars during the later part of the descent of the grifi's and means for imparting lateral movement to the bars, substantially as and for the purpose set forth.

6. In a double-lift jacquard-machine, the

combination of the grifl's, deviating bars.

adaptedto be raised and lowered by the grili's, means for arresting said bars for the purpose of preventing them following the grifl's into the lowest position, means for imparting lateral movement to the bars, after they have deviated the hooks, for the purpose of leaving room for the rising griffblades, substantially as described.

7. In a double-lift jacquardmachine, the combination of the griffs, deviating bars adapted to be raised and lowered by the grifi's, means for arresting said bars for the purpose of preventing them following the grifi's into the lowest position; means for imparting lateral movement to the bars, after they have deviated the hooks, to clear the risin griff-blades, double hooks having narrow ower ends and a bottom board having spaces to permit pivoting of the hooks when in either the lowest or highest position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CASPAR SENN.

INitnesses HERMANN HUBER, A. LIEBERKNEOI-IT.

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