US601043A

US601043A - Device for handling lumber

Info

Publication number: US601043A
Authority: US
Publication date: 1898-03-22
Anticipated expiration: 1915-03-22

Description

J. LMQGARRY. DEVICE lFOR HANDLING LUMBER.

No. 601,043. l Patented'Maul 22,1898.

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UNITED STATES PATENT EEIcE.

JOHN A. MCGARRY, OF CHICAGO, ILLINOIS.

DEVICE FOR HANDLING LUIVBER.

SPECIFICATION forming part of Letters Patent No.Y 601,043, dated March 22, 1898.

' Application led Tune 12, 1897. Serial No. 640,471. (No model.)

To all whom it may concern.-

e Be it known that I, JOHN A. MOGAREY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented acertain new and useful Device for Handling Lumber, of which the following is a specification.

My invention relates to adevice for handlin g lumber and the like, and has for its object to provide a new and improved device for this purpose, of which the following is a description, reference beingV had to the accompanying drawings, wherein- Figure 1 is a View showing a device embodying my invention attached to a pile of lumber. Fig. 2 is an enlarged view, in part section, of the device shown in Fig.l, some of the parts being omitted( Fig. 3 is a sectionon line 3 3 of Fig. l with parts omitted.

Like letters refer to likeparts throughout the several figures.

As lillustrated in the drawings, the hoisting device is provided with a rod or the like A, which supports the remaining parts. At the lower end of the rodA is a cross-piece or foot B, `adapted to engage some'part of the pile of lumber. The rod A is formed with a screwthread A', extending over a part of its length.

' This screw-thread may be formed-in any desired ma'nner.

As illustrated in the drawings, the lscrewthread is formed upon an enlarged part,which is rigidly fastenedvto the rod A in any convenient manner. A sleeve C surrounds the rod A and is providedat its lower end with the projection orfoot C,` adapted to engage the pile of lumber. A stop A2 is attached to the rod A and is adapted to be rigidly fastened thereto by the set-screw A3. This stop limits the downward movement of the sleeve C. The upper end of the sleeve C is enlarged at C2, so as-to allowit to move along the en-` larged screw-threaded part A. A nut D works upon the screw-threaded part A and is `adapted to engage the sleeve C and force it downwardly, so as to move the cross-piece B and projection C toward each otherin order that they may be clamped to the pile of lumber. An arm E is rigidly connected with the rod A andis adapted to be used in controlling and moving the device. A pulley or other suitable device F isconnected with the rod A in any desired manner,.as by means of the crane F. The material to be handled is connected with a suitable power-transmitting device F2, which runs over the pulley F.

The crane F may be of any suitable con struction. crane consists of a single piece movably connected with the rod A,so that its position may be varied.

I have described the several parts of my device in detail; but it is of course evident that these several parts may be varied in form, construction, and arrangement without departing from the spirit of my invention, and I therefore do not wish to be limited to the construction shown.

The use and operation of myinvention are as follows: In the handling of lumber it is often desirable to pile `the lumber in high piles. This necessitates some mechanical de'- vice for handling the lumber. When my device is used, the lumber is piled in the ordinary way, leaving a space or chimney in the middle forthe circulation of the air. The handling device is inserted in this space some distance from theend of the pile and is clamped in position. In fastening my device to the pile one end is lowered into the space at the center of the pile, with the crosspiece B substantially parallel with said space. When the device has been lowered to a sufficient depth, the rod A is rotated Vby means of the handle E or in any otherconvenient manner, so'as to bring the cross-piece B substantially at right angles to the space in the pile, asshown, for. example, in Fig. l. The foot C is then substantially parallel with the space in the pile and is moved to a position where it engages one of the cross-pieces extending across this space. .The-nut D is now tightened by a suitable wrench, thus forcing the cross-piece B and the foot C toward each other, so that they will grip or clamp the parts to which they are opposed and hold the de# vice in position. After the nut D 4has been sufficiently tightened the device will be held in an upright position by the engagement of the cross-piece B and the foot C with the parts with which they are in contact." The As shown in the drawings, this IOO lumber may then be hoisted by means ofthe A pulley F and piled upon the pile until the nut D is reached. Said nut is then loosened and the rod A rotated, so as to free the parts B and C' from the pile. rlhe device is then lifted upwardly and again fastened in position, with the foot C at the top of the pile. In removing the lumber from the pile it will of course be understood that the manipulation of the device will be opposite to that just described, or, in other words, that the device will be lowered into the space between the pile until the nut D is near the top of the pile before being attached thereto, the lumber being then removed until the foot C is reached. It will be seen that by this construction I have a device which maybe attached to the pile of lumber between its outer boundaries, so that the operator can pass completely around the device and can manipulate it without danger of falling from the pile. It will also be seen that the construction of my device allows it to be easily and quickly changed in position as the lumber is piled upon or removed from the pile, so that piles of any desired height may be made or removed. \Vhen the device is in position, the foot C' is at an angle to the foot or cross-piece l, and hence the parts cannot work loose, but the device will be iirmly clamped in position. It will therefore be seen that all danger of the device being pulled from the pile during use is obviated. The tube C and associated parts allow the device to be easily and quickly attached to and detached from the pile of lumber.

I claiml. A device for handling lumber or the like comprising a supporting-piece provided near one end with a projecting arm rigidly connected thereto and adapted to engage a portion et the lumber when piled, a second arm connected with a part free to move longitudinally along said rod and a controlling device for controllingr the position of the longitudinally-movable part.

2. A device for handling lumber or the like, comprising a crane, a support upon which said crane is movably mounted, an arm connected to the bottom ot said support, a second arm free from said support, but associated therewith, so as to be free to be moved longitudinally therealong, an actuating device fer forcing said arms toward each other, said actuating device so positioned as to limit the longitudinal movement of the movable arm, whereby the support may be clamped to the pile of lumber so that it will be contained within the outer boundaries of the pile.

25. A device for handling lumber adapted to be removably fastened to a lumber-pile provided with a space or iiue near its center and comprising a crane, a supporting-rod therefor provided near one end with an arm rigidly connected thereto said arm adapted to be lowered into said space or flue and then moved to a position where it engages one of the boards of the pile, a second engaging arm connected with said rod so as to be free to move longitudinally therealong, a controlling device for forcing the two arms together the whole so constructed that the device may be attached tothe pile of lumber within its outer boundaries.

4. A device for handling lumber comprising a rod provided at one end with an engaging arm, a longitudinally-movable arm connected with said rod and normally free to move therealong and a controlling device for said longitudinallymovable arm movable with relation to said arm and said rod and a crane connected with said rod so as to be supported thereby.

5. A device for handling lumber or the like, comprising a crane, a support for said crane provided at one end with an engaging arm, a sleeve surrounding said support and provided with an engaging arm, a screw-threaded portion on said support, a nut working on said screw-threaded portion adapted to engage said sleeve so as to force the two arms together.

(5. A device for handling lumber or the like comprising a supporting-piece, an arm connected to said supporting-piece and adapted to engage a portion oi the pile of lumber, a second arm connected with said supportingpiece and tree therefrom so as to be moved therealong, stops for limiting the longitudinal l movement of said arm said latter arm being substantially at right angles to said first-mentioned arm when the device is in position.

7. A device for handling lumber adapted to be removably fastened to the lumber-pile provided with a space or flue near its center, and comprising a support provided near one end with a cross-piece adapted to engage portions of the lumber-pile on each side of said space, a projecting part or foot movably connected with said support and adapted to engage a cross-piece extending across said space or flue so that the foot and cross-piece will be at an angle to each other, and means for [orcing said foot and cross-piece toward each other, so as to clamp them in position.

8. A device for handling lumber comprising a supporting-piece, provided with an engaging part for engaging the pile of lumber, a sleeve surrounding said supporting-piece and also provided with an engaging part, said sleeve free from said rod so that it can be moved longitudinally therealong and means associated with said parts whereby they may be moved relatively.

JOHN A. MCGAR tY.

. lVitnesses:

DONALD M. CARTER, Henna Il. KRAFT.

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