US2815251A - Wall board hoist - Google Patents

Description

Dec. 3,1957 I B. STONE I 2,81

WALL BOARD HOIST Filed Dec. 1, 1954 2 Sheets-Sheet l a a 7; 7.? 22-. 7/ 52 27 so 50 2a 57 7 40 26 %d 25- 0 \gi 56/1 Sfone INVENTOR Dec. 3, 1957 B. STONE 2,815,251

WALL BOARD HOIST 2 Sheets-Sheet 2 Filed Dec. 1, 1954 Fri. PM

40 k mf i Z Mo 0 19 0 44 2 56/7 Sfofle is 75 u lg INVENTOR Patented Dec. 3, 1957 ice 2 ,815,251 WALL BOARD HoIsT Ben Stone, Dallas, Tex. Application December 1, 1954, Serial No. 472,271 4 Claims. (Cl. 304-49) This invention relates to apparatus for hoisting and positioning wall boards and more particularly to such apparatus designed to hoist and position wall boards for nailing.

The principal object of the invention is to provide a hoist for wall boards which is at once simple in construction and operation, making possible the expedient handling of heavy wall board by one workman who otherwise would need an assistant.

Another object of the invention is to provide a hoist designed to elevate and position wall board against horizontal and vertical surfaces with equal facility.

Another object of the invention is to provide a hoist which, by virtue of the provision for the displacement of certain parts, may be rolled from room to room through standard width doors.

Broadly, the invention anticipates a base frame mounted on casters and supporting on one side a channel column or upright in which is arranged for vertical movement an elongate slide serving as a mounting for a horizontal wall board supporting frame on which a wall board is elevated to and positioned against a ceiling by means of a winch affixed to a second upright in close adjacency to and coextensively parallel with the first upright or column, the winch being operable by a crank to wind thereon a cable having one end attached to the bottom of the slide, thus to raise and lower the horizontal frame. Moreover, the invention includes a detachable horizontal extension for the frame which has a depending rack of such dimensions as to support a wall board on edge for application to a vertical surface at any desired elevation. The horizontal board supporting frame is constructed in horizontally coextensive and relatively hinged sections to enable the section thereof farthest from the uprights to be hinged upon the other section to reduce the effective width of the frame to enable the apparatus to clear a standard sized doorway.

Other objects will become manifest as the description proceeds when considered with the annexed drawings wherein:

Figure 1 is a front perspective view of a wall board hoist constructed according to the present invention.

Figure 2 is a fragmentary rear perspective view of the detachable vertical wall board supporting rack showing a wall board thereon in dotted lines.

Figure 3 is a fragmentary rear elevational view.

Figure 4 is a side elevational View.

Figure 5 is a top plan view.

Figure 6 is a transverse sectional view on a larger scale taken on line 6-6 of Figure 4, and

Figure 7 is a transverse sectional view taken on line 77 of Figure 4.

Continuing with a more detailed description of the drawing, reference numeral 10 denotes generally the base frame of the apparatus and 11, the hoisting column. The base frame it) is composed of two elongate, longitudinal members 12 in spaced apart parallelism, to each end is alfixed, by bolts 13, a transverse member 14, the ends of the latter extending beyond the foremost longitudinal member 12. Casters 15 are mounted under each end of each transverse member 14 and under the rear end of a shorter transverse member 16 extending from one to the other of the longitudinal member 12 midway between their ends. The width of the frame it that is, the length of the end members 14 of the frame, is less than the width of the standard interior doorway of a building So that the apparatus may be easily wheeled therethrough.

The hoist column 11 is composed of a vertical member 17 which is coextensive with the column and to each side of the member 17 is affixed, by means of bolts 18 an elongate plate 19. The plates 19 are of the same length as the member 17 of the column 11 but extend forwardly thereof to form flanges and to each of the flanges or forward edges of the plates 19 is secured, by means of bolts 20, a length of angle iron 21. In place of the described fabrication of the column 11, a channel of metal may be substituted for the composite material of wood and metal shown in the drawing with equally satisfactory results and it is clearly apparent that metal parts may be used in place of the wood parts shown, if desired, without changing in any way the intent and purpose of the invention.

The relationship of the member 17, plates 18 and angle members 21 forms a vertical channel 22 (Figures 6 and 7) in which operates an elongate slide 23. This slide 23 serves as a mounting for a horizontal load bearing frame generally indicated by reference numeral 24.

The load bearing frame 24 is composed of a pair of longitudinally parallel members 25 and 26 and a pair of end members 27. Intermediate transverse members 28 extend between longitudinal members 25" and 26. The rear longitudinal member 25 of the lift frame 24 is attached, by means of an L-shaped bracket 29 to the upper end of the slide 23 and to further support the lift frame 24, a pair of angle braces 30 are secured by bolts 31 at their upper ends to the rear frame member 25 at points spaced outwardly from the bracket 29, their lower ends converging to the bolt 32 (Figure l) by which they are secured to a U-shaped bracket 33 whose legs 34 extend rearwardly on each side of the column 11 and to the rear end of each leg 34 is welded or otherwise affixed the upper end of a strap 35 (Figures 4 and 5). The straps 35 extend downwardly and are curved inwardly to support a transverse pin 36 providing anchorage for an end of a wire line or cable 37 to which further reference will be made presently.

leferring again tothe lift frame 24, further bracing thereof is accomplished through straps 38 whose lower ends are afiixed at 39 to the angular braces 3h intermediate their ends and at their upper ends at 40 to the longitudinal lift frame member 26 (Figure 4). An ad ditional angular brace 41 is afiixed at its lower end to the slide 29 at 42 and at its upper end at 43 to the longitudinal member 2% of the lift frame 24.

The upright or hoist column 11 is braced by L-shaped braces 44, each having its vertical leg bolted to the column and its horizontal leg bolted to the rear longitudinal member 12 of the base frame 10. Further stabilization is provided by a curved brace 45, one end of which is secured to the rear edge of the rear longitudinal base member while its other or upper end is bolted to the column 11 at a point spaced above its base, as better seen in Figure 3.

The lift frame 24 is made in longitudinal, relatively hinged sections, the stationary section being made up of the members 25, 26 and 27' while the movable or foldable section is composed of the longitudinal member 46 and transverse end members 47, each having an extended end 48 which provides a mounting for a detachable wall board rack generally indicated by reference numeral 49 (Figure 2). The foldable section of the lift frame 24 is connected to the companion section by means of a pair of straps 50, secured by bolts 51 to the side of each end member 47. A bracket 52 is secured to each of the end members 27 of the companion or non-folding section of the frame and to this bracket the inner end of the strap 50 is pivoted at 53 so that it may be moved to the dotted line position shown in Figure 4 and thus reduce the effective width of the lift frame for doorway clearance.

The rack 49 is composed of a pair of top and bottom horizontal members 54 and 55, respectively, and a pair of vertical end members 56 whose lower ends are welded or otherwise suitably secured to the ends of the horizontal member 55. The members 56 are similarly secured adjacent their upper ends to the ends of the horizontal member 54 but extend upwardly beyond this member. A pair of short channel members 57 of equal length are aflixed at one end to each vertical member 56 in vertically spaced and confronting relationship to define a socket at the top of each member 56 for reception by the extended ends of the end members 48 of the foldable section of the lift frame 24. The angle members 57 of the sockets being braced by vertical straps 58, one on each side of the socket and an angular brace 59 whose ends are to the sockets and to the vertical members 56 of the rack 49, as better seen in Figure 2. A vertical strap 60 extends from the horizontal member 49 to the horizontal member 55 midway between the end members 56.

A series of lugs 61 are formed along the lower horizontal member 55 to extend outwardly therefrom on a horizontal plane to provide support for the lower edge of a wall board 62, shown in dotted lines in Figure 2.

Referring to Figure 7, it will be observed that the U- shaped bracket 33 which supports the lift frame 24 at the lower end of the slide 23 through braces 30 and 38, is attached to the slide by means of a bracket 63 to which the braces 3i) are secured through bolt 52, the bracket 63, in turn, being secured to a face plate 64 which is attachedto the slide 23 by screws 65 (Figures 6 and 7).

It is evident from the foregoing that the slide 23 may move freely in the channel 22within the column 11, carrying with it the lift frame 24. In fact, the lift frame may be raised to a point well above the top of the column 11', necessarily so for the reason that the height of the column is less than that of a ceiling so that it may clear the header of a doorway in passing from room to room.

To raise and lower the slide 23 and consequently the lift frame 24, a standard 66 is disposed alongside the column 11 and is of the same height. A- bracket 67 joins the tops of the standard and column and a pair of strap braces 68 and 69 extend from the rear longitudinal frame member 12 of the base 10 to the standard 66 and are bolted thereto, as shown. Secured by bolts 70 to the standard 66 above the lift frame 24 is the mounting 71 of a winch 72 which is operated by a hand crank 73. A flange 74 of the winch has a plurality of annularly spaced apertures 75 therein for the selective reception of a detent 76 (Figure and by which the winch is held against rotation when the lift frame is adjusted to proper position. The wire line 37, previously referred to as havingone end secured to the bolt 36, passes over a pulley 77 in a mounting 78 attached to the top of the column 11 and extends downwardly where it is wound on the shank of the crank 73 constituting the winch 72.

In use, a sheet of wall board 62 is placed on the lift frame 24 and the crank 73 is rotated to wind the wire line 37 on the winch. Since the opposite end of the wire line is secured to the bottom of the slide 23 through the bracket 33 and arms 35, the slide will be elevated so that the board 62 will be brought up flush against the ceiling for nailing. It is understood that this operation is carried out with the rack 49 detached from the lift frame 24.

When it is desired to apply wall board to the walls, the rack 49 is attached to the lift frame 24 by sliding the sockets, composed of angle members 57, onto the extended ends 48 of the foldable section of the lift frame. The lower edge of the board 62 is set upon the lugs 61 in the manner shown in Figure 2 whereupon the crank 73 is turned to wind the wire line on the winch 72, thereby raising theboard to the desired height against the wall studs for nailing.

Manifestly, the construction as shown and described is capable of some modification and such modification as may be construed to fall within the scope and meaning of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is:

1. A wall board hoisting and positioning apparatus comprising a wheeled base frame, a hoist column, a horizontal lift frame above said base frame in longitudinally hinged sections and supported at one side from said hoist column, the section of said lift frame opposite said hoist column being, foldable over the companion section of said lift frame and having extended end members opposite its hinge, a vertical rack, a right angular socket on each end of said rack detachably connected to and depending from the extended endsof said lift frame opposite said column, said rack having means along its lower portion for supporting a wall board in vertical position and means for raising and lowering said lift frame.

2. A wall board hoisting and positioning apparatus comprising a hoist column, a horizontal wall board lift frame supported at one side from said column, an extension on each end of said lift frame, a vertical wall board support-ing rack, a socket at each end of said rack and disposed at right angles to the plane of said rack and adapted to receive the extensions of said lift frame andmeans for raising and lowering said lift frame.

3. A wall board hoisting and positioning apparatus comprising a hoist column, a horizontal wall board lift frame supported at one side from said column, said lift frame being in longitudinally aligned and relatively hinged sections, the section opposite said column being foldable onto the section of said lift frame adjacent said column, and having an extension at each end, a wall board supporting rack, and means for raising andlowering said lift frame.

4. A wall board hoisting. and positioning apparatus comprising, a hoist column, a horizontal wall board lift frame supported from said column at one side, said lift frame being in longitudinally aligned and hinged sections, the section opposite said column being foldable onto the section of said lift frame adjacent said column, a wall board rack suspended from the opposite side of said lift frame for supporting a wall board on its edge preliminary to its positioning against a vertical retaining surface, said rack having sockets receiving extensions on the side of said lift frame opposite said column to support said rack in a vertical plane and means for raising and lowering said slide to correspondingly actuate said lift frame and rack.

References Cited in the file of this patent UNITED STATES PATENTS 610,934 Webber Sept. 20, 1898' 1,685,144 Austin Sept. 25, 1928' 2,465,206 Davis Mar. 22, 1949 2,472,887 Core June 14, 1949

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