US981762A - Pattern mechanism for carpet-looms. - Google Patents

Description

G.I-I[UG 0. PATTERN MEGHANISM FOR CARPET. LOOMS.

APPLICATION FILED 21, 1907.

Patented Jan. 17, 1911.

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CHARLES HUGO, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MATTHEW J. WHITTALL, OF WORCESTER, MASSACHUSETTS.

PATTERN MECHANISM FOR CARPET-LOOMS.

Specification of Letters Patent.

Patented Jan. 1'7, 1911.

Application filed December 21, 1907. Serial No. 407,541.

To all whom it may concern:

Be it known that I, CHARLES How, a citizen of the United States, residing at WVorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Pattern Mechanism for Carpet- Looms, of which the following is a specification.

The object of this invention is to provide an improved mechanism for carrying out the method of weaving shown, described and claimed in the application filed of even date herewith by Matthew J. IVhittall, Serial No. 407535.

Enough of the mechanism of a loom fitted with my improvement is shown in the accompanying two sheets of drawings to enable a person skilled in the art to practice my invention.

Referring to the drawing and in detail, Figure l is a side elevation of the ordinary mechanism used to turn the cylinder which operates or advances the cards used to call the design in a carpet loom. Fig. 2 is a side elevation from the other side of the loom illustrating my attachment which enables the loom to carry out the new method previously described. Fig. 3 is a detail of the operating-means for said mechanism. Fig. fl: is a plan showing the cards and cylinder. Figs. 5, 6 and 7 are diagrams hereinafter described, and Fig. 8 is a View showing a section of the carpet woven.

In manufacturing woven rugs, it is now the custom to weave breadths of carpet the length of the rug which therefore have a section of body and the corresponding pieces of border integrally formed therewith. In practicing this plan of weaving, the cards of the loom must necessarily be cut to form both the body and the border. The body is usually woven in repeat sections.

In the Jacquard loom as ordinarily constructed, there are cards advanced a distance equal to the width of one card for each operation of the loom or for each wire. This necessitates that there shall be a length of cards, when the particular weaving above referred to is to be carried out, which shall produce a design one-half of the length of the rug, which involves the cutting of a large number of cards and puts a heavy strain on the card-handling mechanism by reason of the great weight of the cards, or

else the cards have to be set by hand for each repeat which involves a loss of time.

The method described in said application of M. J. WVhittall consists in arranging the cards of the body and border alternately and in moving the cards forward a distance equal to two cards for each operation, whereby the border design is first called; then moving the cards forward a distance equal to one card and then leaving the loom in operation as long as desired to make as many repeats of the body part of the design as is desired; then moving the cards forward a distance equal to one card and then running the series of cards forming the border backward a distance equal to two cards at each operation.

Referring to the drawings and in detail, A designates a series of cards which are arranged so that the cards for the border part of the design come alternately with the cards for the body part of the design. These cards are mounted in the usual way and pass over a six-faced cylinder B. This cylinder is journaled in arms 10 free to slide horizontally in the frame-Work of the machine. A shaft 11 is journaled in brackets secured to the frame, and fastened on said shaft 11, are levers 12 connected to the arms 10 to operate the same. A lever 13 is secured to the end of the shaft 11 and a spring 14 is connected to said lever and to the frame-work of the machine to hold the cylinder in its left-hand position, as shown in Fig. 1. A stop 15 is arranged on the frame to determine this position.

To operate the levers 12 a yoke 16 is fitted on the lever 18 at the side of the machine shown in Fig. 1 and is held in place by pins 17. This yoke is connected to a lever 18 pivoted to the frame of the machine, which lever 18 connects by link 19 to a pivoted lever 20, which carries a roller 21 bearing on a cam 22 secured on one of the operating shafts 23 of the machine. A lever 24 is pivoted to the frame and has a pin 25 fitting under the lever 13 and a cord 26 is connected to said lever 24L so that the cylinder can be operated by hand.

The cylinder is provided on the side shown in Fig. 1 with a series of six pins corresponding to the faces thereof, which pins form in effect a ratchet-wheel 27. For preventing accidental rotation of the cylinder,

holding pawls 28 are fitted to slide on the arms 10 and are pushed toward the cylinder by means of springs 29 which are fitted on shafts projecting from said pawls which shaft is fitted into hubs on the arms 10. A pawl 30 is pivoted to the frame to stand above the ratchet 27 and a pawl 31 is pivoted to the frame to stand below the ratchet 27. These pawls are connected by an arm or link 32. The pawl 31 has an extending arm connected to which is a cord 33. A weight 34 is provided which can be attached to the end of the cord 33. When the weight is not attachedto the cord, the upper pawl 30 will act to turn the cylinder in a direction opposite to that in which the hands of a watch move when the cylinder is moved away from the position shown in Fig. 1. If the weight is applied to the cord 33, the lower pawl 31 will come into operation and the cylinder will be turned in the opposite direction at such movement. This forms the ordinary mechanism by which the cylinder can be turned one of its faces for each movement thereof so that the cards will be advanced a distance equal to the width of one card for each operation of the machine. By pulling on the cord 26, the cylinder can be operated and turned independently by hand.

Referring to Figs. 2, 3 and 4, the additional mechanism which I have added to the loom will now be described. On the other side of the cylinder is arranged a second set of ratchet teeth 35 corresponding to the ratchet teeth 27. A bell-crank lever 36 is pivoted to the frame of the machine. Pivoted to this lever is a double pawl 37-38, one arm of whichextends above the ratchet and the other of which stands below the ratchet. This double pawl has an extending arm 39 to which is attached a cord 40. A weight 41 can be attached to this cord. When the weight is not attached to the cord, the upper pawl arm 37 is the operative member, but when the weight is attached, the

- lower pawl 38 is the operative member. A

lever 42 is pivoted to the frame and the same is connected by a link 43 to the other end of the bell-crank lever. This leveris provided with a weight 44 at its end and a yoke 45 is fitted to the lever 42 and held in place by pins 46. The end of the yoke 45 is connected to a pivoted lever 47 which has a roll 48 bearing on a cam 49 secured on one of the shafts 50 of the machine, as shown in Fig. 3. By this mechanism, the bell-crank lever 36 will be vibrated and an additional turn will be given to the cylinder B. In operation, as the cylinder moves to the right from the position shown in Fig. 1, either the pawl 30 or 31 will turn the same one face, as shown for example in Fig. 6. After this movement takes place, one or other of the pawls 37 or '38 of the double pawl on the other side of the machine will engage a toothof the sec- 0nd ratchet 35 and will turn the cylinder another face, as shown in Fig. 7. Thus for each movement of the cylinder when both sets of pawl mechinisms are in operation, the same will be turned two faces.

The operationis as follows: Both pawl mechanisms are set in operation and the loom is set so that the first card of the border will first come in operation. Then as the loom operates the cylinder will be turned two faces for each wire and the border will be woven. The cards are then advanced a distance equal to the width of one card by pulling on the cord 26 which will turn the cylinder B one face. The

loom is now thrown into operation and the cards will be moved around a distance equal to the width of two cards for each operation, which movement will bring the cards which are to call the body design into operation and a section of the body will be woven. This operation can now be repeated in the same direction by letting the loom continue in operation. In this way the body can be woven with as many repeats of the design as desired. When this body is woven, the cylinder is again pulled forward one face by the cord 33 and the weights are placed on the cords 26 and 40 when the border will be woven on the end of the carpet in the opposite direction relatively to what it was first Woven, whereby a section of the rug will be woven, as indicated in Fig. 8. If it is desired to use the loom for ordinary weaving, the pawls 37 38 are held in inoperative position by a string, as indicated in dotted lines, and if desired, the operative mechanism therefor from the cam 49 is disconnected. In this way a loom can be simply arranged to carry out the improved method of weaving above referred to.

Many other forms of mechanism may be devised for practicing my invention without departing from the scope of the invention thereof as expressed in the claims.

Having thus fully described the invention, what I claim and desire to secure by Letters-Patent is 1. In a loom of the character described, the combination of a series of cards, means for moving said series of cards a distance equal to two cards for each operation or wire, comprising ratchet and pawl mechanism for turning the cylinder one face, a pivoted lever, a double pawl pivoted thereto, means for vibrating said lever, a ratchet on the cylinder with which the double pawl is adapted to engage, an arm extending from said double pawl, this mechanism constituting means for turning the cylinder addition- 2. In a loom of the character described, the combination of a series of cards for weaving a border and a body design, the cards for the border design being arranged alternately with the cards for the body design, means for moving said series of cards a distance equal to two cards for each operation or wire, comprising ratchet and pawl mechanism for turning the cylinder one face, a pivoted bell-crank lever, a double pawl pivoted thereto, means for vibrating said bell-crank lever, a ratchet on the cylinder with which the double pawl is adapted to engage, an arm extending from said double pawl, this mechanism constituting means for turning the cylinder additionally one face for each operation whereby the cylinder will be turned two faces for each operation of the loom, and a cord extending from said arm to which a weight may be applied for reversing the operation of the cylinder.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

CHARLES HUGO. lVitnesses:

LOUIS W. SOUTHGATE, C. FORREST WVnssoN.

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