US2588128A - Jig for pivotally suspending articles - Google Patents

Description

March 4, 1952 K. M. LARSEN 2,588,128

JIG FOR PIVOTALLY SUSPENDING ARTICLES Filed April 4, 1949 IN VEN TOR.

ATTORN EYS KARL M. LARSEN Patented Mar. 4, 1952 JIG FOR PIVOTALLY SUSPENDING ARTICLES Karl M. Larsen Minneapolis, Minn.

Application April 4, 1949, Serial No. 85,319

It is an object of my invention to provide a novel and improved jig for holding article's adapted to be securely attached to a supporting 2 Claims. (Cl. 118-503) structure to hold an article therein while per- I mitting free rotation and optimum positioning thereof.

It is another object to provide a jig for holding articles adapted to be attached to an upright member for support thereby and provided with a horizontally disposed pivot pin to permit free swinging and optimum positioning of an article securely clamped therein.

More specifically, it is an object to providea jig adapted to be securely attached to an upright member and having a bracket member disposed in outstanding relation to the upright member for carrying a clamping mechanism to securely hold an article therein, said clamping mechanism being provided with a horizontally disposed pivot pin removably mounted in said outstanding bracket to permit substantially free rotation and positioning of the article clamped therein;

It is still a further object to provide a jig for pivotally suspending articles specifically adapted to be removably mounted on a suitable support-'- ing structure to permit quick and easy removal of the pivoted jig andthereby facilitate handling of a freshly painted article.

These and other objects and advantages of my invention will more fully appear from the following description made in connection with the accompanying drawings wherein like refer ence characters refer to similar parts throughout the several views and in which:

Fig.1 is a side elevational view of my jig having portions thereof broken away to show in section and mounted on a ladder which is shown in section;

Fig. 2 is a top plan view of my jig with an article held therein;

Fig. 3 is a front elevation view of my jig showing the rotation thereof by dotted lines;

Fig. 4 is a fragmentary front elevational view of a portion of the clamping mechanism as viewed from line 4-4 of Fig. 1; and a Fig. 5 is a perspective view of an alternative form of attachment clamp.

As illustrated in Figs. 1 through 4, I provide one form of my invention designated as form A' which has an article clamping member such as the elongated clamping bar I0 with suitable clamping elements adjustably mounted thereon.

In the form shown the bar II] has a plurality of longitudinally spaced transversely disposed notches IDa formed along the inner edge portion of the marginal end portions thereof, as best shown in Fig. 2. An article engaging jaw member II is slidably mounted along the front edge portion of the bar ID in transversely disposed relation thereto and has a substantially U- shaped connection member [2 fixed to the rear side thereof with the closed end of U member I2 surrounding said bar I0 and adapted to selectively engage the notches Illa. When the arms of the U-shaped connection member are disposed at substantially right angles to the longitudinal axis of the bar I0, the jaw member II is permitted to slide and be longitudinally adjusted on said member I0. When outwardly directed pressure is exerted on jaw member II, the U-shaped connection member I2 will engage a selected notch Illa, and the arms thereof will be inclined relative to the longitudinal axis of bar Ill, and

the jaw member II will engage the forward edge portion of bar III to form a rigid abutment clamping member.

A second clamping jaw member I3 has a connection member I4 similar to connection member I2 associated therewith. The jaw member I3 is mounted on a threaded shaft I5 which is threadably inserted through a cooperatively threaded element I6 which is fixed to the arms of U-shaped connection member I4. A suitable gripping head I! is fixed to the outer end of threaded shaft I5 to permit the same to be turned to project the jaw member I3 toward or away from jaw member I I and adjust the spaced relation therebetween. An outstanding shaft I8 is fixed to member II] and is journaled in a horizontally disposed bearing member such as the bushing l9.

This bushing is removably mounted on a suitable supporting bracket 29 as by a depending spindle 2| fixed to the lower portion of said bushing and removably inserted into a sleeve 22 fixed in depending relation to the supporting bracket Suitable anchoring means are provided at the inner end of attachment bracket 20 such as the fixed hook member 23 secured at the inner end of bracket 20 and having a rigid hook 23a formed at the upper portion thereof. An elongated slot 23b is formed through the lower portion thereof, as best shown in Fig. 4, and an adjustable hook 24 with a threaded shank and a wing nut 25 is mounted therein for sliding movement longitudinally of said hook member 23. The two hooks 23a and 24 cooperate to securely attach the outstanding supporting bracket to a conventional ladder which serves to support the entire jig structure during the operation to be performed on the article held between the jaws H and I3.

Suitable retaining means are provided at the .inner end of the outstanding shaft is such as the washer 26 and cotter key 21. The jig illustrated is particularly designed for holding storm sash and screens during the painting thereof, and by providing the horizontal pivotal connection on shaft 18, the article secured between the jaws H and 13 may be swung so that the optimum position for painting may be maintained at all times. It should be noted that in the forms of the invention illustrated the top extremity of sleeve 22 is disposed slightly below the upper edge of supporting bracket 20 to permit the bushing l9 to be disposed along the outer marginal end portion of said supporting bracket in side by side relation thereto to prevent oscillation of the jig on a vertical axis and limit the swinging movement to oscillation on a horizontal axis.

;A second form designated as form B of my invention is illustrated in Fig. 5 and is similar in all respects to form A of the invention except that the anchoring means for the supporting bracket is somewhat modified to permit the jig to be mounted on an upright member such as the two by four 28. The supporting bracket designated by the numeral 29 in form B of the invention has a pair of apertures formed therethrough, and a pair of clamping bolts 30 are inserted through said apertures in sliding relation thereto and are threadably received in a pair of internally threaded apertures formed in clamping plate ,3! which is adapted to be securely drawn up against the two by four 28 by the action of the bolts 38. The operation of both forms of my invention is similar after the attachment brackets 20 and 29 have been rigidly anchored to a suitable supporting structure. The elongated bar I0 journaled in the bushing 19 is removably mounted on either the attachment bracket 20 or attachment bracket 29 by the spindle 2| inserted in the sleeve 22.

The article clamping mechanism ,is initially removed from the supporting bracket and secure- I ly clamped to a screen frame or storm sash and thereafter remounted on the supporting bracket for painting of the article. After completion of the painting operation, the sash or screen is removed by gripping the clamping member to facilitate carrying of the freshly painted article to a suitable drying location.

It will be seen that I have provided an extremely simple yet highly efiicient jig for pivotally mounting articles to facilitate painting thereof and permit easy handling of the freshly painted article. The specific forms of the invention illustrated provide a jig adapted to permit swinging on only a substantially horizontal axis and hold the article against swinging on a vertical axis to more firmly support said article and thereby facilitate applying the paint thereto.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts without departing from the scope of my invention.

What I claim is:

1. ,A jig for pivotally suspending articles com! prising an outstanding substantially horizontal supporting bar adapted to be securely anchored at its inner end to a suitable supporting structure, a vertical sleeve element fixed to the outer portion of said bar against one side thereof and in depending relation thereto and having a generally smooth interior surface, the upper end of said sleeve being disposed a slight distance below the upper edge of said bar, a unitary substantially T-shaped member constituting a horizontal tubular bushing having rigid therewith a depending pin circular in cross section and having a generally smooth surface, said pin being freely slidable vertically into and out of said sleeve through the upper end thereof and rotatable therein, said bushing normally resting upon the upper end of said sleeve and when resting thereon being disposed in side-by-side adjacent relation to the upper marginal portion of said bar above the sleeve to prevent rotational movement between said depending pin and said sleeve and thereby prevent horizontal swinging movement of the bushing, a pivot pin journaled in said bushing for rotation on a substantially horizontal axis, a bar rigidly fixed intermediate its length tothe front end of said pivot pin and being tiltable vertically by turning of the pivot pin in the bush ing, and clamping mechanism adjustably mounted on said bar for releasably clamping an article thereto, the freely slidable fit of said depending pin in said sleeve permitting bodily upward removal of the article-carrying bar and an article clamped thereto from the sleeve of the supporting bar.

2. A jig for removably supporting articles comprising a support having a forwardly extending horizontal arm, ,a socket mounted vertically against one side of said arm and having an open upper end spaced downwardly from the upper surface of the same, a unitary T-shaped member constituting a horizontal tubular bearing having a depending spindle rotatably and removably mounted in said socket through the open upper end thereof, said bearing normally resting upon the upper end of said socket and extending longitudinally-of said arm in side-by-side engagement with the portion of the arm above the socket and thereby held against turning to a position in crossing relation to the arm until shifted upwardly to a position above the arm, and an article holder disposed forwardly of said arm and having a rearwardly extending shank removably fitted into said bearing through the front end thereof and rotatable therein for al lowing vertical tilting of the article holder transversely of the holder about its shank as an axis.

KARL M. LARSEN.

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

UNITED STATES PATENTS Number Name Date 131,195 Traut Sept. 10, 1872 1,042,192 Boilot Oct. 22, 1912 1,725,072 Gorrell Aug. 20, 1929 1,732,081 Clement Oct. 15, 1929 1,823,204 Long Sept. v15, 1931

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