US5939A - Jacqttard - Google Patents

Description

UNrrED srATEsi PATENT oEEIoE.

' I WM. K. GREENE, JR., OF SCHENECTADY, NEW YORK.

JACQUARD.

Specification of Letters Patent No. 5,939, dated November 28, 1848.

To all whom t may concern:

Be it known that I, WILLIAM K. GREENE, Jr., of Schenectady, in the county of Schenectady and State of New York, have invented a certain new and useful Improvement in Jacquard Apparatus for Weaving Three-Ply Carpeting, &c.; and I do hereby declare that the same is fully described and represented in the following specilication and' accompanying drawings, letters, figures, and references thereof.

Of the said drawings Figure l, denotes a side elevation of my improved jacquard apparatus. Fig. 2, is a vertical section taken through the trap boards and just in rear of the side represented in Fig. l. Fig. 3, is a horizontal section taken just over the trap boards, and exhibiting theL arrangement of the holes and saw slits of the same. Fig. 4., is a top view of one of the wires through which the strings pass. exhibits the manner in which it may be formed to operate to bet-ter advantage.

In the aforementioned drawings A, Fig. l, denotes the frame of a jacquard. B, C, D, are three trap bo-ards arranged together as seen in the drawings. Each of said boards is to have suitable mechanism applied to it to elevate and depress it at the proper times. E, is the pattern prism, and F, the slide frame of said prism, the same being operated by one of the trap boards in consequence of each of its ournals K, being made to pass through one of two cam slots I-I, of an arm I, which extends upward from the rod L, of the prism frame.

The middle trap board C, has all the saw slits a, a, &c., of the stringholes b, b, &c.l on one side of the middle ofit, arranged in -a direction from the middle or in the same direction as those of the holes c, c, of the trap board B. The remaining holes c,L c, of the middle trap board have their saw slits d, al, arranged in a direction toward the trap board D, or in the same direction as those of the trap board D, as seenin the drawings. In conjunction with the three boards having their holes and saw Fig. 5, l

slits arranged as described. I make use of a series of wires M, M, each of which is formed with the three eyes h, h, h, and in other respects as seen either in Fig. 4, or Fig. 5. Y

By the above described arrangement I am enabled to make but three trap boards, and one pattern card and prism answer the purpose for which it has been customary to use four trap boards, two pattern cards and two prisms. I thus yvery much simplify the jacquard machine particularly in its application to the weaving of three-ply carpeting. I do not confine my invent-ion to the making the saw slits of exactly one half the number of string holes of the middle trap board to run in a directionopposite tothose ofl the remaining lholes as it may be some times convenient to make those of less than half the number of holes extend in one direction or toward the trap board next ad jacent while the saw splits of the remainingv holes are disposed in opposite directions. The knotted strings whichpass through the holes of the trap boards are seen at z', z', &c.

What I claim as my improvement is- The manner in which I have constructed the .three trap boards, or lin other words, the

peculiar manner of arranging the saw splits boards, two pattern cards and two pris1ns, F

as heretofore employed-they simplifying the mechanism and weaving process. j

In testimony whereof Ihave hereto set ,Y

my signature this` twenty-second day of March A. D. 1848. i I W. K. GREENE, JR.

Witnesses: A

R. I-I. EDDY,

CALEB EDDY.

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