US2532496A - Loom harness lifter - Google Patents

Description

Dec. 5, 1950 v P. T. HIPP 2,532,496

LOOM HARNESS LIFTER 2 Sheets-Sheet 1 Filed Feb. 3, 1949 I INVENTOR. PRIMU 'I-HIPP M QQW Dec. 5, 1950 P. T. HIPP 2, 32,496

LOOM HARNESS LIFTER Filed Feb. 5, 1949 2 Sheets-Sheet 2 INVENTOR. 37 P IMU I- H P? 4 T ORA/E Y5 Patented Dec. 5, 1950 UNITED STATES PATENT OFFICE LOOM HARNESS LIFTER Primus T. Hipp, La Grange, Ga. Application February 3, 1949, Serial No. 74,456

'3 Claims.

This invention relates to loom harness mechanism, and more particularly to harness lifters.

The harness lifter of this invention is particularly designed for use in connection with multiple-harness mechanism wherein two or more harness members are employed.

It is an object of the present invention to provide a loom harness lifter assembly which is capable of a wide range of adjustment, the invention contemplating a plurality of adjustable brackets that may be quickly mounted on the arch of the loom and provide supports for independent lifting devices for each harness member, with the lifting devices being readily movable on the brackets to, and secured in, desired positions of adjustment in vertical alignment with the harness so that the pull exerted by the lifting devices on a particular harness will be truly perpendicular and thereby assure maximum efiiciency in the operation of the loom.

The invention, together with its objects and advantages will be best understood when the following detailed description thereof is read with reference to the accompanying drawing in which is illustrated a preferred embodiment of the invention, and wherein:

Figure 1 is a fragmentary elevational view of a portion of a loom equipped with this invention;

Figure 2 is an enlarged detail view partly in section and partly in elevation, and taken substantially on the line 2-2 of Figure 1;

Figure 3 is a detail horizontal sectional View taken substantially on the line 33 of Figure 2;

Figure 4 is a perspective view of one part of a two-part adjustable bracket forming part of the invention, and

Figure 5 is a perspective view of the second or complementary part of the two-part adjustment bracket forming part of this invention.

Referring now more in detail to the drawings, it will be seen that the reference numeral 5 designates a portion of the arch of the loom, and the numerals 6 and I the harness members. It will be understood that while only two harness members, 6 and l, have been shown, any desired number of harness members may be employed.

The harness members may be of any suitable construction, and particularly may be of the metal construction type now generally used. As

is well known in the art, these harness members are reciprocated in vertical paths and are positively depressed through the action of cams upon treadles, there harness frame a cam 8 which engages a roller 9 carried by a treadle bar It. The treadle I0 is being generally provided for each suitably connected as at H with a jack stick l2 that in turn is secured to and suspended from the lower cross bar of a harness frame as at [3. For the sake of clarity, but a single depressing or lowering mechanism, and that for the harness frame 1, has been herein illustrated, it being understood that such lowering or depressing mechanism is duplicated for each harness frame.

When a harness frame is depressed by the cam operated means shown in Figure 1 and just described, it is then moved in an opposite or upward direction by means of lifters constituting the present invention and now to be described.

In accordance with this invention, for lifting the harness frames there is provided a pair of brackets I4-l4 adapted to be mounted on the loom arch 5 above the harness frames. As shown to advantage in Figures 3 to 5, inclusive, each bracket I4 includes a plate-like member l5 that at one end is provided with a lip or flange i6 adapted to overlie the upper edge of the arch 5 as shown in Figure 2. Complementing the bracket member [5 is a substantially L-shaped bracket member that includes a vertical body part I! and a horizontal plate-like body part 18. The vertical part I! of the L-shaped bracket member flatly engages the plate-like body of bracket member l5 and is adjustable vertically thereon, operating between guide lugs l9 arranged in pairs adjacent opposite vertical edges of the bracket member l5. Bracket member I5 is provided with an opening 20 that is elongated longitudinally of the bracket member, and the part [1 of the complemental bracket member is provided with a vertical slot 2! that registers with the opening 20 in the bracket member IE to accommodate an attaching bolt 22 as shown in Figure 2. As is apparent, through the medium of bolt 22 the bracket I4 is secured in assembled position on the arch 5 with the plate l8 of the bracket at the desired position of elevation above the harness frames.

The plate-like member it of each bracket I4 is provided with a pair of parallel slots 23, 24. As clearly shown in Figures 3 and 5 the slots 23, 24 terminate at one end an equal distance from the free edge of plate I8. One of the slots, for example slot 23, is however shorter than slot 24 and thus terminates at its inner end inwardly from the corresponding inner end of slot 24.

Each bracket I4 is adapted to accommodate a plurality of lifting devices 25. Each lifting device 25 comprises, as shown to advantage in Figure 2, a tubular member 26 that has a lower threaded end 21 accommodated within a slot 23,

24, as the case may be, and having threaded thereon upper and lower nuts 28, 29 for binding engagement with the plate 18 of the bracket H! to secure the tubular member 26 at the desired position of adjustment within the selected slot of the bracket and in vertical alignment with a selected harness frame. Washers 30, 3| are interposed between the nuts 28, 29 and the proximate faces of the plate part 18 of the bracket.

The tubular member 26 houses a coil spring 32. T 1e spring 32 at its upper end is anchored within the tubular member 26 through the medium of an eye bolt 33 that is suitably suspended through the medium of a nut and washer assembly 34 from the crown of a cap 35 that screw threads onto the upper end of tubular member 26. At its lower or free end sprin 32 is equipped with a loop that is trained through an eye pro-' vided on one end of a Weight or plunger 36. Weight or plunger 35 at its lower end is provided with an eye or otherwise formed to accommodate one end of an 8 link 37 that serves to secure said end of the weight or plunger to the upper member of a selected harness frame, the harness frames having the upper members thereof equipped with eyes 38 to accommodate the connecting links 3?.

It will be apparent that a pair of lifters 25 will be provided for each harness frame. Thus when a harness is depressed by the cam operated means shown in Figure 1, downward movement of the frame is yieldingly resisted by the springs of the lifting devices 25 attached thereto. As the cam continues to rotate these springs will contract for lifting the harness frame, or 7 as the case may be, as is Well known in the operation of looms of the character herein indicated.

It will be apparent that since each harness fram is equipped with a pair of lifting devices 25, the movement of each harness is independent of the other harness of the loom, and the lifting devices for each harness being supportable, as shown, by the brackets M directly over the harness to which the liftin devices are attached, the pull exerted by the springs of the lifting devices on the harness frame will be at all times truly perpendicular. As a result objectionable lateral pull on the harness frame in its up and down movement is entirely eliminated.

It will also be apparent that each bracket i4 is adapted to accommodate in each slot 23, 24 thereof, several lifting devices 25 so that with this invention a large number of harness frames can be accommodated with the employment of but two brackets 14.

While the invention has been described in detail in its presently preferred embodiment, it will, of course, be understood that such has been done for purposes of illustration only and not by Way of limitation, and therefore only such limitations are to be imposed thereon as may reasonably come within the scope of the appended claims.

What I claim is:

1. The combination, with a vertically movable loom-harness and means to depress it, a lifting device for the harness comprising an adjustable bracket mounted on the arch of the loom, a tubular member, inter-engaging means on the bracket and on the tubular member for securing the latter at a selected position of adjustment on the bracket in vertical alignment with the harness, a spring located within and anchored at one end thereof to the tubular member, and a plunger secured at one end to the free end of the spring and at its opposite end to the harness.

2. In a harness lifter for looms, vertically adjustable brackets, means to secure said brackets to the arch of the loom in desired positions of vertical adjustment, a plurality of independent lifting devices mounted on each bracket, and inter-engaging means on each liftin device and each bracket for securing the respective lifting devices at desired positions of adjustment on the respective brackets.

3. In a harness lifter for looms, a bracket adapted to be mounted on the loom arch and comprising a horizontal plate provided with a plurality of slots, and a harness frame lifter comprising a tubular member having an end portion adapted to be positioned in a selected slot, and means on the end portion of said tubular member for binding engagement with, the plate of the bracket to secure the tubular memher in position thereon vertically aligned with a selected harness frame.

PRIMUS T. HIPP.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 572,246 Cuscaden Dec. 1, 1896 1,815,847 Kirkpatrick July 21, 1931 2,379,742 Payne 1 July 3, 1945 FOREIGN PATENTS Number Country Date 11,992 Great Britain of 1910

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