US2607979A - Hand loom - Google Patents

Description

Patented Aug. 26, 1952 twang aha, Pasadena, cant.

.l ipiilicationfAprfl 1, 1950, Serial No; 153,370 r j My-inventiorr relates t hand looms moreparticularly flt'oihand looms .of f theitypei involving a square "or rectangular frame, having 2011 each side-a row. of, pins or pegs, around 'which yarn is' wound to form agri'd" through which weaving is done to produce a fabricunit. Heretoforasuch hand looms have been'limited in size to'only a few inches because t'he effective length of the "yarn strands shortens as weaving progresses. Such shortening-is cumulativethat is, it becomes .worseas thersize of the loom is increased.

An object of the present invention is to provide a hand. loom which may be. substantially larger in area than has heretofore been feasible.

A further object is, to provide a hand loom which inso far as itsuse:'is: .concerned,;or.the f type and form of weaving accomplished, .is similar to" that producedoniip'revious smaller hand looms.

Further, to provide a hand loom which is particularly simple of construction and easily operated even by a novice;

' "With the "above "'andother "objects inview as may appear hereinafter; reference is made to the accompanying drawings, in which:

Figure 1 is a plan view of a hand loom incorporating my invention.

Figure 2 is an enlarged fragmentary end view thereof, taken through 2-2 of Figure 1.

Figure 3 is a fragmentary top view thereof, taken from the plan 3-3 of Figure 2 and indicating the gridwork of the yarn as applied to the pins of the loom.

Figure 4 is a fragmentary sectional View showing one corner of a 100m incorporating a modified form of my invention.

Figure 5 is a fragmentary elevational view showing one corner of a loom incorporating another form of my invention.

Figure 6 is a sectional view thereof, taken through 6-45 of Figure 5.

Reference is first directed to the construction shown in Figures 1, 2 and 3. My hand loom comprises side rails I and a bottom rail or cross piece 2, which define the two sides and bottom of a rectangular or square frame. These members are preferably formed of wood and are joined rigidly at their corners and thus define a U- shaped structure. Secured in the extremity of each side rail is a stud bolt 3. Each stud bolt may be prevented from rotation by a locking pin 4. A top rail or cross member 5 is transversely pierced near its extremities to fit over the stud bolts 3. End slots 6 are provided in the top rail so as to bifurcate the ends thereof. A screw collar 7 is threaded .oneachlstud bolt andfits in a corresponding endslott. .Wash'ers' "B'may be .provided o n.opp0site.side s of thes'criew collar.

By rotation of the screw colIars 'I," the .topirail may be moved-toward or away from the-side rails I, to decrease or increase the distance between the top rail and the bottomrai1;..that is, to vary the length tithe-axis; of-said. frame which t'raverses the top-and-bottom rails. J f

' The-side,-top, andgbottom rails, define acoplanar surface and are-provided neartheir. inner margins,- with a row.of;pins;9, around which yarn is threaded. For-examplainthe mannershown fragmentarily in Ei ure. 3. The yarn shown. in Figure 3 represents the ,-grid-p-attern through whichadditional yarn iswoven. In the courseof weaving, which is usuallyfrom side toside, the longitudinal strands, that is, the strands .between the top and :bottom 'ra-ils tend to shorten By adjusting the atop? rail by means v of the screw collars], the toprail may ben oved to com-pensate forshortening-of the-yarn strands. v-A a result, it becomes feasible .to weave a section of cloth which may be substantiallyin excess of a foot in width and in length. Previously, the maximum limit for a hand loom involving a frame bordered by rows of pins, has been limited to a size between six and eight inches.

Reference is now directed to Figure 4. In this construction studs H are secured in the ends of the side rails I. The side rails are counter-bored as indicated by [2, so as to receive a spring [3. Washers I l are provided at opposite side ends of the spring [3. In this case, the stud bolt extend through the top rail and receive wing nuts [5. Or if desired, the head or abutment thus formed may be a permanent part of the studs. With this arrangement, the top rail is drawn downwardly against the urge of the springs I3 as the yarn strands are shortened in the course of weaving. This arrangement does not require manual adjustment of the cross member, but is, by reason of the springs, fully automatic.

Reference is now directed to Figures 5 and 6. In this construction, each side rail is provided with a tongue 2! which fits in an end slot 22 provided in the cross rail. The top or cross rail projects laterally beyond the tongues 2| and receives a transversely disposed bolt 23 and wing nut 24, which operate to clamp the extremity of the top rail against the sides of the tongue 2!. In this construction the adjustment i manual and made periodically as the weaving progresses, just as is done in the first described structure.

Having fully described my invention, it is to be understood that I do not wish to be limited to the details herein set forth, but my invention is of the full scope of the appended claims.

I claim:

1. A hand loom, involving: a U-shaped rigid frame; a crosspiece extending between the extremities of said frame; a surface of said crosspiece and frame being co-planar; projections on the extremities of said U-frame extending longitudinally thereof and being smaller in cross section than said extremities; means for adjusting the position of said crosspiece on said extremities; and surface along each side of said U-frame and along said crosspiece, said pins adapted to be a row of pins mounted in said co-planari wrapped gridwise with yarn through whichweaving may proceed, said crossbar being adapted for adjustment toward the U-frame as the weaving progresses to compensate for change in the effective length of said yarn grid. -2.,A hand loom comprising a U-shaped rigid frame; tongues integral with and extending longitudinally of the extremities of said U-frame, a crosspiece extending; between said extremities andhaY ng bifurcated ends which mate with said tongues, bolts extending transversely through said bifurcated ends and said tongues and having nuts associated therewithto cause said ends to grip said tongues, arow of pins along'each side of said U-frame and along said crosspiece, .the surfaces in which said pins are mounted being coplanansaid crosspiece being adapted for adjustment toward the U-frame.

3. A hand loom comprising a frame, tongues integral with the extremities of said U-frame, a crosspiece extending between said extremities and having bifurcated ends adapted to mate with said tongues, bolts extending transversely through said bifurcated ends and having nuts associated therewith to cause said ends to grip said tongues, a row of pins along each side of said U-frame and along said crosspiece, said pins adapted to be wrapped gridwise 'U-shaped rigid 4 with yarn through which weaving may proceed, said crosspiece being adapted for adjustment toward the .u-frame as the weaving progresses to compensate for change in the effective length of said yarn grid.

4. A hand loom as set forth in claim 1, wherein: said projections are in the form of stud bolts, said adjusting means are threaded collars on said bolts, and said crosspiece isprovided with holes for said bolts and slots crosswise to said holes for said collars.

5. A hand loom as set forth in claim 1, wherein: said projections are bolts anchored in the extremities of said U-frame, said crosspiece is provided lwithholes to receive said bolts, and said adjusting means include springs urging said crosspiece away from said U-frame, and thread- -edmembers are provided to draw said crosspiece toward said U-frame. I, r 6. A hand loomas set forth in claim 1, where- .in: said projections are tongues integral with the extremities of said u-frame'; said crosspieceineludes bifurcated ends to receive, said tongues,

and said adjusting means'are bolts and nuts extending transversely through 'said bifurcated ends to cause said ends to grip said tongues.

@wAmoG; THROOP. REFERENCES n The following references are of 'record in the file of this patent: I V V UNITED STATESPfATENTS c Number Name 1 Date 2,011,916 Simonds Aug. 20, 1935 2,229,188 Porter Jan. 21, 1941 2,451,207 Ferguson Oct. 12, 1948 FOREIGN PATENTS Number "Country I Date 5,271 Sweden -1 Mar. 2, 1894 742,294 France Apr. 4, 1933 625,355

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