Patteknxjard for jacqttakd looms
US 8810 A
Description (OCR text may contain errors)
EnN STATES Para SAMUEL T. THOMAS, OE LOWELL, AND EDWARD EVERETT, OF LAWRENCE, MASSACHUSETTS.
PATTERN-CARD FOR JACQUARD LOOlVIS.
To all whom t may concern:
Be 1t known that we, SAMUEL T. THOMAS,
` ot' Lowell, in the county of Middlesex and State of Massachusetts, and EDWARD Ev- Enii'r'r, of Lawrence, in the county of Essex and State aforesaid, have invented a new and useful Improvementin PatterneC'ards tor Jacquard Looms; and we do hereby declare that the following is a full, clear, and exact description of the construct-ion and use of the same, reference being had to the annexed drawing, making a part of this specification, in which- Figure I, is a top view of two cards; Fig. II, end View of same; Fig. III, top view of the bottom; Fig. IV, top view of the needleholes and rivet holes; Fig. V, key, to turn the buttons; Fig. VI, view of the side of the card which comes in Contact with the pattern prism.
The object of our invention is to facilitate the operation of changing the ligure or pattern `of cloth that is woven upon a Jacquard .loo-m, and to reduce the expense now incurred in changing and perforating the common pasteboard cards.
In Fig. I, C, D, E, F represents one of the cards, which is made of tin-plate, or other sheet metal, its length and breadth being such as to adapt it to the prism, upon which it is to be used. A hole is made at each end of the card, as at G, II, to receive the tapered guide-pin of the prism, which holds the card in the required position. The card is perforated with round holes L, L', their number and position being arranged with reference to t-he needles, with which the card is to be used. As the cards are usually made, one set can produce but one tigure; every new figure requiring a new set of cards. By our improvementwe are able to produce a great variety of figures with one set of cards, which we effect by attach` ing a button made of tin-plate, and of the form shown in Fig. III to each hole, as at A, B, A B Fig. I. The button is of an oval form, and has at one end a square aperture; in this, a rivet is placed which passes through the small circular holes, J J Fig: IV, in the metallic card, and is riveted upon the side opposite the button as in Fig. VI. The rivet is prevented from turning in the button by the square hole, its motion being confined to the round hole J, in the card. The buttons are turned by a key, of the form shown in Fig. V, one end otl the key being countersunk, so as to conform to the shape of the button. A certain part ot the holes are closed by the buttons, as at A, A', Fig. I:or open as at B B,-ac cording to the gure required upon the cloth. The cards are connected together by two or more metallic rings NI, M, thus forming the pattern chain.
What we claim and desire to secure by Letters Patent, isy The combination of the buttons with the metallic card, as described, the buttons being so riveted or attached to the card as to allow of their being turned for the purpose of closing or opening the holes, to which they are respectively attached.
SAMUEL T. THOMAS. EDVVD. EVERETT.