US2813550A - Loose reed loom - Google Patents

Description

United States Patent LOOSE REED LOOM Eduard Baumgartner, Ruti, Zurich, Switzerland Application February 15, 1956, Serial No. 565,701

2 Claims. (Cl. 139-489) The present invention relates to loose reed looms and more particularly to a novel arrangement of the reed suspension on a loose reed loom. On such a loom the reed, as is well known, is pivotally mounted on the loom slay to permit its rearward swinging in case the reed encounters a certain resistance during the forward stroke of the loom slay. Thereby the reed shall be prevented from suffering defects by hitting the weavers shuttle, if this latter is stuck fast for any reason in the operating zone; particularly finer reeds are more exposed to the risk of serious defects.

When the reed is swung out of its perpendicular suspended position, its height on the loom decreases correspondingly for which reason a loose reed loom requires higher reeds than otherwise used in order to allow the swing-radius necessary for a perfect operation of the reed. Obviously, the height of the reed is limited according to the density of reeds and the degree of fineness of the reed; according to the increasingly finer size of the reed the height of the latter must be reduced, which fact prevents the use of finer reeds on loose reed looms due to the necessary swing-radius of said reed.

It is an object of the invention to compensate for said disadvantage with respect to height in case of finer reeds by providing a loose reed loom with an improved suspension device for the pivotal support of the reed on the loom slay, said device having a reed casing spaced a distance apart from the supporting point or the suspension place.

By dimensioning the said distance in corresponding manner, the above mentioned radius of swing may be given even to the finest reeds, in order to permit same to operate perfectly on any loom.

Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawings, in which:

Fig. l is a front elevation of an end portion of the pivotally suspended reed, while Fig. 2 is a transverse section on the line II-Il of Fig. 1.

Referring to the drawings the fine reed 1, having for example 26 teeth per cm. of length or 66 teeth per inch, is provided at each of its longitudinal edges with a collar 2 and 3, respectively, which is formed by a rail and has a square profiled longitudinal rib 4 on both longitudinal sides. Slipped over the lower collar 2 of the reed 1 is a rod 5 of circular cross section which is provided with a corresponding recess, which rod consists for instance of wood and serves as a case for the reed; said rod may also be of different e. g. of angular cross-section.

Each reed is provided with a two- part suspension member 6, 7 at least at both ends and in the middle thereof. Additional such suspension members have to be inserted depending on the width of the reed and the density of the weft. The two parts 6 and 7 of the identically formed suspension members are releasably connected with each other by screws and nuts 8, and define together with their thickened bottom portion 6a and 7a, respectively, a recess serving for the reception of the top reed collar 3 which is formed like the reed collar 2, while the crosssection of said recess also corresponds to that of the caserod 5. The said suspension parts 6a and 7a at the same time represent portions of the top reed case. These suspension parts 6a and 7a are provided at the top with an outwardly extended end leg 6b and 7b, respectively, upon which two in series arranged holding pieces 9 and 10, respectively, are placed which are securely retained each by means of two pins 11. The holding pieces 9, 10 are situated opposite each other in pairs and according to Fig. 2 near laterally against each other so that together they form a corresponding holding body. The holding pieces 9, 10 are accommodated in a downwards longitudinally slotted, common tubular guide and supporting bar 12; the outer periphery of the two holding pieces 9 and ltfi is curved to fit into the tubular bar 12, whereby an oscillatory suspension is provided for the reed 1 on the bar 12 which is secured to the loom slay. This suspension permits the reed 1 to swing rearwardly, i. e. in the direction indicated by an arrow in Fig. 2, in case said reed should encounter any resistance during the forward swing (beat-up stroke) of the slay; in beating direction of the reed 1, the latter may abut against the shuttle race of the loom slay, as roughly indicated in Fig. 2.

When with finer reeds according to experience the total height must be restricted to 4 inches, but a suflicient swinging-out movement of the reed, requires a radius of swing of at least 4.8 inches, then this dimensional deficiency may be compensated by means of a suspension device according to the present invention.

When loosening the screws or nuts 8 which connect the two parts 6 and 7 of the individual suspension member, these suspension members can easily be inserted into the reed on the loom, displaced in longitudinal direction and possibly also removed again from the reed.

The arrangement of the reed according to the invention, which is comparatively simple in construction, easy to handle and of light weight, can be modified in respect to details in various manner. Such for instance a single continuously extending suspension member e. g. of light metal may possibly be provided.

I claim:

1. Means for suspending the reed on the loom slay of a loose reed loom, comprising a tubular supporting bar provided with a downwardly open longitudinal slot, reed suspension members traversing said slot in the bar and pivotally mounted within the tubular bar, and an upper reed case formed by the lower ends of said suspension members depending from said tubular supporting bar.

2. Means for suspending the reed on the loom slay of a loose reed loom, comprising a tubular, longitudinally slotted supporting bar, suspension members traversing the slot in said bar and including two complementary portions removably secured to each other and forming at their lower ends a recess between each other adapted to receive the upper edge of the reed to be suspended, and holding pieces for said complementary portions, said holding pieces being engaged within said tubular supporting bar and adapted for pivotal movement within said bar.

References Cited in the file of this patent UNITED STATES PATENTS.

1,926,382 Holmes Sept. 12, 1933 2,151,488 Smith Mar. 21, 1939 2,561,767 Adler July 24, 1951 2,569,880 Bergstrom Oct. 2, 1951

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