US700075A - Machine for drawing in warp-threads. - Google Patents

Description

Patented may I3, |902.

, Y H. PADoN. MACHINE FUR DRAWING IN WARP THREADS.

(Application med 'Sept 20' 1900;) V

2 Sheets-Sheet I.

No. v700,075. Patented Mayja,l |902. H. PARDON.

MACHINE FOB DRAWING IN WARP THREADS.

(Application led Sept. 20, 1900.) f

(No Model.) 2 Shets-Sheet 2.

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UNITED STATES.

Y PATENT i EEICE.

HERMANN PARDoN, oE OREEELD, GERMANY.

lVIACHINE FOR DRAWING IN WARP-THREADS.

SPECIFICATION forming part of Letters Patent No. 700,075, dated May y1 3, 1902.

Application led September 20, 1900. Serial No. 30,588. (No model.)

To @ZZ whom it may concern/w Be it known that I, HERMANN PARDON, weaver, a subject of the Emperor of Germany, residing at No. 209 In'raterstrasse, Crefeld, in

' the Kingdom of Prussia andEmpire of Gerfrom front to back. Thedisadvantage of' this arrangement, however, is that the vertical reed prevents the warp behindit from being seen, so that when threading up the person operating the machine is inconvenienced in detecting mistakes which in complicated work easily occur. The omission to thread up one of the warp-threadsis often diihcult to determine, and where the machine is worked by one person, as is usually the rule with the class of' machine above described, the subsequent drawing through of a forgotten-or missed thread is a complicated and difcult operation with the vertical reed.

By the present .improvement the reed is horizontally arranged in the machine for the purpose of enabling the work to be readily seen by the operator, whereby mistakes which may occurareimmediately detected and rectified.

To this end the invention consists inthe construction and arrangement of parts, as will be hereinafter described and particularly claimed.

In the accompanying drawings, Figure 1 is a front view ofa machine fitted with the present improvement; Fig.- 2, a longitudinal section thereof on the line A B of Fig. 1; Fig. 3, a cross-section'through the machine on the line B B of Fig. 2, and Figs. at to 7 are various positions of the knives.

The numeral 1 indicates the warps, which hang at the back of the part 2 of the machine and upon which the warp-threads are wound and stretched byaweight 5, attached to the lower beam. The part 2 is carried by two horizontal cross-beams 3 and firmly attachedto the standards' 4 of the machine. The reed 6, with its wire-slots 7, is preferably attached to the under side of the two top cross-bars 3. For this purpose small anglepieces 8 are provided, which are firmly screwed either to the standards 4 or to the underside of the top cross-bars 3 and admit ,of the reed being removed. The reed may be conveniently secured in place by small wooden wedges or the like. Thevreed 6 thus lieshorizontal'ly in the frame of the machine, while the knives 9 and 10 move up and down vertically thereto. To this end the knives are secured to a frame composed of bars 11 and 12 and adapted to be raised and lowered by means of a treadle 13. Attached to the vertical bars l2 of this frame in any suitable manner are two rods 14:,parallel to each other and to the horizontal. Y On these rods 14 slides a guide-frame 15 for the knives, the plane ot' which is vertical to the central plane of the warp and of the reed. To the vertical middle portion of this frame lisattacheda cord 16, which passes over a pulley 17 and car ries aweight 18.

As already stated, the frame 11 12 rises and falls. For the purpose of guiding the frame parallelslots 19, vertical to the warp, are cut in the part 2 ofthe framing, which allow sufcient play to the bars 11 both above and below. The upward motion of the framell 12 is effected by means of two straps 20, attached at one end to the tops of thevertical bars 12 and at the other to the quadrant lever-arms 21 22. The automatic downward motion is caused by two tension-springs 24, attached to the part 2 of the frame by means of eyes 23.

The knives 9 and 10 are so mounted in the frame 15 as to be adjustable horizontally and parallel either closer together or farther apart. To this a number of interchangeable washers 32 are provided in the hollow, arms .ofthe frame 15, which carry the knives 9V and`-10, and which may be screwed up with the'knives either on the right or lefthand side thereof when the knives are inserted, as occasion'may require.

The two quadrant lever- arms 21 and 22 are both keyed fast upon the same rod 25. This rod 25 is supported by and rocks on springs IOO 26 at the front and upper end of the part 2 of the framing. One of the lever-arms (the arm 22) has an arm 27 on the rod 25 and extending in the opposite direction to the quadrant. To this lever-arm is attached a cord 28, connecting it with the movable end of the treadle 13. The cord 28 passes over pulleys 29, fixed to the standards 4.

The operation of the present improvements or the whole machine is as follows: Assuming that the knives 9 and 10 are in the position relatively to the reed shown in Fig. 4, a warp-thread is drawn from the warp 1 beneath the frame 11 and 12 and laid in the notch 31 of the lower knife 10. The treadle 13 is then depressed by the foot, drawing down the cord 2S and the lever-arm 27, the quadrant- levers 21 and 22, straps 20, and frame 11 12, together with the rods 14, which carry the frame 15, and the knives 9 and l0 moving upward. During this time the top knife 9 is lifted out of the hollow space between the reed-wires 7, and the lower knife 10, the point of which lies closely against the top knife i), moves from below into the saine hollow space and draws the warp-thread through with it. The highest position of the knives 9 and 10 is shown in Fig. 6. As will be seen, the loose end of the warp-threads 30 is brought to the upper surface of the reed G or threaded through it. On the descent of the knives 9 and 10, which takes place when the foot is removed from the treadle 13, the knife-frame 15 is automatically shifted onward along the rod 14. Under the action of the weight 1S the point of the knife 9 as the frame 11 and 12, with itsattached parts, is automatically drawn down by the tensionsprings 24, which is contradistinction to the point of the lower knife 10, does not lie close against the knife 10, inclosing a space one wire Wide between it and the bottom knife 10 and advancing the frame 15 one split of the reed in the direction of the arrow 32.

What I claim, and desire to secure by Letters Patent, isa In a machine for drawing in Warp-threads, the combination with a frame, of a reed horizontally arranged therein, the vertically-movable knives arranged one above the other, and means for operating said knives, and the bottoni knife having a notch for the reception of the Warp-thread, substantially as specified'.

In witness whereof Isnbscrbe Iny signature in presence of two witnesses.

HERMANN PARDON.

Witnesses:

C. KINZER, J on. WALTERS.

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