US1770555A

US1770555A - Reversible hoisting device

Info

Publication number: US1770555A
Application number: US283007A
Authority: US
Inventors: Charles R Shepley
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-06-05
Filing date: 1928-06-05
Publication date: 1930-07-15
Anticipated expiration: 1947-07-15

Description

July 15, 1930.

C. R. SHEPLEY REVERSIBLE HOISTING DEvIdE Filed June 5. 1928 3 Sheets-Sheet 1 In en for:

Sheple W4 /72 forneya.

July 15, 1930.

C. R. SHEPLEY REVERSIBLE HOISTING DEVICE Filed June 5, 1928 3 Sheets-Sheet 2 Invani'or: 2? C. 7?. sh e pley IPA y 71/ LI 414/ M Ki torn egg y 1930. c. R. SHEPLEY 1,770,555

REVERS IBLE HOI STING DEVI GE Filed June 5, 1928 3 Sheets-Sheet 3 I n ven ZLOI.

Patented July 15, 193% CHARLES R. SHEPLEY, OF MINNEAPOLIS, MINNESOTA REVERSIBLE HOISTING DEVICE Application filed. June 5, 1928. Serial No. 283,007.

My invention relates to reversible hoisting devices. An object of the invention is to provide means for hoisting all kinds of construction materials and merchandise from a lower level to a higher level and mechanically dumping the material at the higher level, and also for taking such materials from a higher levelto a lower level and mechanically dumping the material at the lower level. As applied to the construction of buildings, the device is so constructed and arranged that lumber, steel, brick, building tile,,and miscellaneous materials may be loaded into a trough formed by two hinged members of a hoist platform at or near the ground level, the platform then being hoisted'and dumped upon the successivefloors as the building progresses upwardly. In order to accomplish this result advantageously, sectionsof thevertical guide members are added upon raising the top section which carries the sheave forthe cable and then inserting under this section, an additional length of guide members approximately a story in length. A movable platform which occupies a trough like position when loaded at the bottom is hoisted by means of the cable and when it reaches the top is automatically unfolded into an inclined position sloping in toward the building so that the material is dumped at the desired upper level. lVhen materials are to be taken down from above and dumped at or near the ground level, an adjustable trip device engages the leaves of the platform and moves them from their troughlike posi- 7 tion into an inclined position sloping away from the building so that the material slides off the platform either to the ground'or upon a truck as desired. It Will, therefore, be obvious that the device may be operated to carry materials both up and down and mechanically dump such materials into the building or away from the building. Furthermore, materials may be loaded at any floor of the building and carried up or down and dumped upon any other floor. The device 1S particularly adapted for use in l101St- 'ing lumber. and leinfOlCing steel to the floor where itis to be erected in forms or placed as reinforcement 1n the concrete floor slab.

Also by attachment of the trip device, at or near the ground level, to the outside of the vertical guide members, the hoisting device is immediately ready to carry form lumber or other material down from the upper floors where it is being removed from the concrete framing and it will dump this material at or near the ground level in the manner previously stated.

The full objects and advantages of my invention will appearin connection with the detailed description thereof, and the novel features of my inventive idea will be particularly pointed out in the claims.

In the accompanyingdrawings which illustrate one form in which my invention may be embodied,-Fig. 1 is a sectional elevational view showing the platform at the top of its lift. Fig. 2 is a sectional elevational view showing the platform in the position which it occupies when carrying material. Fig. 3 is a sectional elevational view showing the platform in dumping position at the bottom. Fig. i is a fragmentary view showing the position of the descending platform just as it has reached the trip device. Fig. 5 is a fragmentary view showing the position of the platform as it is beginning to tilt into the inclined positionof Fig. 3. Fig. 6 is a .front elevational View. Fig. 7 is a view in, horizontal section on the line 7-7 of Fig. 2. Fig. 8' is a perspective detail view. Fig. 9 is a view in section on the line 99 of Fig. 6. Fig. 10 is a view in section on t-he'line 1010 of Fig 6.

As will be understood from the drawings, I provide a vertically extending framework which includes a pair of uprights or standards 11, each of which has secured to its inner side, two strips 12 spaced from each other to provide a guideway 1% between the strips. It will be understood that the standards may consist of members placed end to end vertically so that the framework can be carried up in sections to any desired height. As best shown in Fig. 8, the strips 12 are secured to the standards 11 so as to break joints therewith whereby the structure is made stronger. The hoisting platform consists of two

leaves

16 and 18 which are hinged to each other by hinges as best shown in Fig. 9. A vertically movable support for the platform includes a pair of

vertical side members

22 and 24 which lie inside the uprights 11 and are connected by three

transverse members

26, 28, and 30, the ends of which fit into the guideways 14 at the two sides. Inclined

members

31 and 32 are secured to the upper ends of the

side members

22 and 24, respectively, and slope upwardly therefrom. Inclined

members

34 and 36 are secured to the upper ends of the

members

31 and 32 and are also secured to the lower end portions of the

side members

22 and 24. The

members

34 and 36 have inclined

brace bars

38 and 40 secured thereto. The platform support is further strengthened by vertical bars 42 and 44 and it includes

bars

46 and 48 which extend between the

transverse members

26 and 30 while a transverse bar 50 connects the

inclined members

34 and 36 near their upper ends, this bar being placed in the angles between said members and the

top members

31 and 32. The front edge of the leaf 18 is secured to the upper ends of the

inclined members

34 and 36 by hinges 52 so that the leaf normally rests upon the

inclined members

31 and 32 while the rear edge of the leaf 16 has sliding engagement with the uprights 11 so that the platform normally assumes the troughlike form shown in Fig. 2. In order to move the platform up and down, the top section of the upright members 11 is provided with a crossbar 54 to the middle of which a sheave 56 is secured. A cable 58 passes over the sheave 56 and one end thereof is secured to the platform support in suitable manner as by wrapping it around the transverse member 30 as indicated at 60. The other end portion of the cable passes around a direction sheave 62 located near the ground line and then passes to a suitable winding device which may be of well known construction and hence is not shown. The upright members 11 may be held together by crossbars 64 and these upright members are secured to the building B-by tie pieces 66. The top section of upright members has the guideways 14 closed at their upper ends by blocks 68 whose upper surfaces are rounded and provided with metal shoes 70. When the platform is moved upwardly in loaded condition, the winding of the cable 58 is stopped so that the transverse member 26 will just avoid coming into engagement with the blocks 68. Fig. 2 may be considered as representing the position of the platform as it is nearing the top. When it reaches the top as shown in Fig. 1. the leaf 16 swings down over the rounded surface of the shoes 70 so as to form av continuation of the leaf 18 in regard to its slope toward the building. The leaf 16 also comes into alinement with an inclined bridge 72 which connects the vertical frame with the building so that when the platform reaches the top, the material carried by the platform will slide down the bridge into the building. The intermediate transverse member 28 acts as a safety member so that if the operator should carelessly run the platform up at too great a speed when reaching the top, the platform will be held upright even if the top transverse member 26 should break through the stop blocks 68. In order to take materials down from the building, a trip. device is secured to the vertical frame 11 at each side thereof. Each of these trip devices comprises a triangular member having a vertical side 74 and two

inclined sides

76 and 78. The trip device is secured to the vertical frame members 11 by means of bolts 80 passing through holes in the triangular trip member and through two holes of a series of holes 82 provided in the vertical member 11. By providing a series of the holes 82, the trip devices may be adjustably secured at the desired height. The upper inclined side of the trip device is provided with a notch 84 having inclined edges. For cooperation with the notches 84, the platform leavesnear their ends adjacent their contiguous edges are provided respectively with

rollers

86 and 88 as best shown in Fig. 10. When the platform is being lowered and reaches the position shown in Fig. 4, the

rollers

86 and 88 strike the lower inclined side of the notch 84. Upon now continuing the downward movement of the platform, the

rollers

86 and 88 first move slightly backward as shown in Fig. 5, and the front leaf 18 starts to gradually tip. Upon further continuing the downward movement of the platform into the position shown in Fig. 3, the rollers move forward in the notch and are then lifted out of the notch so that the leaf 18 continues its tipping action and comes to rest upon the side 76 of the trip device and with the same downward inclination as the latter so that the load carried by the platform slides off upon the ground G or into a truck placed in the proper position.

The operation and advantages of my device have to a large extent been set forth in the preceding description. The device is adaptable for hoisting and lowering any material that can slide upon. an inclined plane without injury. The device includes a platform which can be speedily and easily loaded 05 account of its freedom from the customary braces and guides of the standard brick hoist having a non-tilting platform. Furthermore, the platform in my device is conveniently and speedily unloadedv automatically and without manual effort. The particular angle of the leaves of the platform in its loading and carrying position and the. particular angle of inclination of the platform when unloading are governed by the character of the material which is to be carried up or down.

I claim:

1. A reversible hoisting device comprising vertical guide members adapted to be erected in connection with a building, a platform consisting of two leaves hinged to each other and slidably supported for vertical movement along said guide members, means for moving said platform up and down, means for normally holding said leaves in troughlike form, an automatically operating device for causing said platform to assumean inclined plane position sloping in one direction at a predetermined level, and an automatically operating device for causing said platform to assume an inclined position sloping in the opposite direction at another predetermined level.

2. A hoisting device comprising vertical guide members adapted to be erected in connection with abuilding, a support mounted for vertical movement along said guide members, means for moving said support up and down, said support including inclined upper members sloping upwardly away from said guide members, a platform consisting of two leaves hinged to each other, one of said leaves being hinged to the upper end of said inclined members and the other of said leaves having its outer edge normally in engagement with said guide members whereby said leaves assume a troughlike form, and a trip device carried by said guide members which when engaged by said platform causes the latter to assume an inclined plane position sloping away from said guide members. 7

3. A hoisting device comprising vertical guide members, a platform consisting of two leaves hinged to each other and slidably supguide members, means for moving said platform up and down, means for normally holding said leaves in troughlike form, and trip members consisting of three bars secured together in the form of a triangle, one of said 1 bars being vertical and secured to one of said vertical guide members, another of said bars being upwardly inclined to constitute a support for the third one of said bars, said latter bar being downwardly inc-lined and having a notch on its upper side adapted to be ensignature. 7

CHARLES R. SHEPLEY.