US1931978A

US1931978A - Hoisting apparatus

Info

Publication number: US1931978A
Application number: US619625A
Authority: US
Inventors: Carlson Conrad
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-06-28
Filing date: 1932-06-28
Publication date: 1933-10-24
Anticipated expiration: 1950-10-24

Description

Oct. 24, 1933. c. CARLSON HOISTING APPARATUS Filed June 28, 1932 3 Sheets-Sheet 1 INVENTOR Conrad Car/son.

A TTORNE Y5 Oct. 24, 1933. c c so 1,931,978

HOISTING APPARATUS Filed June 28, 1932 3 Sheets-Sheet 2 Fig 3.

INVENTOR Con/ad Car/son.

A TTORNE Y5 Oct. 24, 1933. c. CARLSON HOISTING APPARATUS Filed June 28, 1952 3 Sheets-Sheet 3 INVENTOR C 00mm Car/son. M M

ATTORNEYS Patented oct. 24, 1933 UNlT ED STATE-ES P TENT ()FFICEY Conrad Carlson, Brooklyn; N. Application June 28, 1932. Serial No. 619,625

6 Claims} (01'. 2504 -1 This invention relates to a hoisting apparatus for use'with buildings under erection, and is in the nature of an improvement upon theinvention disclosed andclaimed in Letters Patent of the United States #1,'l76,414, granted to me on September 23, 1930.

' It is an object of the invention to contrive a hoisting apparatus comprising a pair of sectional masts which provide parallel runways for a carrier, in combination with means for conveniently and securely tying the masts to one another and to a wall of the building under erection in such manner that the path of movement of the carrier is unobstructed.

It is a feature of the invention that the mast ties referred to comprise struts disposed outside the masts and secured to the outer faces thereof, that the struts extend toward the building and are offset inwardly and pass through a window opening in'the building wall, and that provision is made of means adjustably secured upon the struts for bearing against the inner and outer faces of the building wall to clamp the wall between them at opposite sides of the wall opening.

It is a further feature that corresponding sections of the two masts are united rigidly to one another by means comprising arms rigid with-the respectivemast sections and extendinglaterally therefrom'and a cross member located beyondthe normal path of travel of the carrier and rigid with said arm. r 1 V Other objects and advantages will hereinafter appear.

In the drawings forming part of this tion, a

Figure 1 is a fragmentary, sectional, sideele-v vation illustrating a structure embodying features of the invention;

Figure 2 is a view in front elevation illustrat- I ing the strut members of Figure 1,-together with clamping means adjustably carried by such members for engaging the inner face of the building wall; I

Figure 2A is a fragmentary view in elevation showing the manner in which adjacent sections of "a mast are aligned and secured to one another;

of 'the construction disclosed and described, in my patent referred; to above. Each mast is made up of a plurality of longitudinally aligned sections, each sectionromprising' an upright memfront and rear faces thereof;

Upon inspection of Figure 2A, it will. be ob served thatat the places division. of the mast sections occun'the guideways or

rails

4, 5 on one of the sections la overlap or extend beyond the joint where the other piece 1?) abuts the one first named. In said Figure 2A bolts 15a, 15b are illustrated as employed to clamp the rails and'the ting ends of saidsections, the first mentioned bolt 15a which is sustained by the

rails

4, 5, a short distance below the lower extremity of the as 'a leader or'feelerin finding its wayinto the crosswise disposed groove. 150, when the section the,otherfsection 1b; during the erection of the upright 11. It is comparatively easy after the bolt 15a has entered the groove 150, to pushv the 'companionbolt 151) through the combined

rails

4, 5 and the lower section 1b, subsequently to which both bolts are tightened up to firmly connect and "align 'thekparts 1a and'lb; 'It will be understood that as many joints and sections are used, as are needed to build'it upto'the required mounted in a carrier frame ,7; which frame includes guide members S'th'at partially embrace the masts." s a The mast members 3 have their outer faces disposed, in part, clear of the path of movement of M thecarrier 6 and the carrierframe'l. Each mast member 3 is providedwith.amultiplicity of openings 9 for accommodating bolts 10 whereby struts '11 are adapted to be secured to it. Struts 11 are her 3 having guideways'4 and 5 secured to the mast sections together. At the meeting or abut- H or mast piece. la'is'stepped intov place on top of height. Aybuckt or other'suitable carrier 6 is secured at the same levels to both masts, each lower extremity of a window opening 12 formed pair of struts being located substantially at-the in a'wall l3 of the building under erection. The

disposed far enough apart so that the masts may lie betweenthe'm. As the strutseittend' toward the building wall they are inwardly 'ofiset so that they approach one another. They continue thence in. substantially parallel relation through the window opening. Each strut '11 is provided struts at the-outer or forward ends thereof are.

with a pair of

horizontal slots

14 and 15. A cross lid tie 16 is detachably connected to the struts at the inner or forward ends thereof and is adapted to be adjusted and secured in place to bear against the inner face of the building wall at opposite sides of the, window opening. The cross tie 16 comprises a beam 17, a metallic angle bar 18 and a metallic supporting bracket 19. The beam 17, the angle bar 18, and the supporting bracket 19 are fixedly secured to one another by means of bolts 20 and nuts 21. Upstanding ears 22 formed at opposite ends of the supporting bracket 19 have bolts 23 passed through them. The bolts 23 also pass through the slots 15 of the struts 11 and have the nuts 24 threaded upon them. It will be apparent that when the nuts are loosened the cross tie 16 may be adjusted longitudinally of the struts and may then be fixed in adjusted position by tightening the nuts. j

A cross tie 16a identical in all respects with the cross tie 16 is mounted between the struts in position to bear against the outer face of the building wall 13 at opposite sides of the window opening. The cross tie 16a will not be described in detail, since it is an exact duplicate of the cross tie 1 6, but the parts ofthe cross tie 16a corresponding to parts of the cross tie 16 have been given the same reference numerals with the superscript 11.. The bolts 23a associated with ears 22a cooperate with the slots 14 of the struts 11. The bracket 19a serves as a'spacer'for the struts 11 for fixing the distance between the struts. Both the struts 11 and the bracket 19a. lie outside the normal path of the carrier 6 and its frame 7 so that they constitute means for rigidly tying the mast sections to one another without interference with the travel of the carrier and the carrier frame.

A chute 25 secured to a cross bar 26 may be mounted upon the struts 11 adjacent the outer faces of the building wall and may extend downward through the building wall and rest uponthe cross tie 16.' Bail members 27 partially embrace the struts 11 and pass through the cross bar 26. The upper ends of the bail members 27 are threaded and have nuts 28 secured upon them for drawing the bail members into clamping relation to the struts.

The topmost sections of the mast are united by a pair of tie plates or beams 29'which'are secured to the mast and to one another by means of bolts 30 and cooperating nuts (not shown). Bearing blocks 31 supported onthe tie plates 29 provide bearings for a shaft 32 of a pulley 33 which is disposed between the tieplates. A cable 34 is secured at one end to the top of the carrier frame '7. This cable passes upward to and around the pulley 33 and thence downward to and around a pulley 35 to a suitable hoist, not shown. The pulley 35 is supported in a yoke. 36which is pivotally mounted ina swivel block 3'? secured upon a section of one of the masts by means of bolts 38 and nuts 39. A bracket 40 is mounted fast on the lowermost mast section closely adjacent to the swivel block 37, and has a bracing cable 41 secured to it. This cable-may extend in a direction to oppose the lateral pull exerted upon the lower end of the hoisting cable 34, and

I may be anchored to a portion of the building under erection.

The bucket 6 is rigidly mounted upon upstanding arms 42 and these arms in turn are pivotally supported by a cross shaft .43 disposed in the lower portion of the carrier frame 7'. A transversely extending bracket arm 44, rigid with the frame 7, has pivotally mounted-upon it a lever the building wall.

45. The lever 45 is pivotally connected at the rear end thereof to a link 46. The link 46 is in turn pivotally connected to a lug 4'7 fixed on the rear lower face of the bucket. The lever 45 and the link 46 form a toggle which is limited in its movement in one direction to substantially the position illustrated in Figure 1 by a fixed stop 48 carried by the frame 7. The bucket mounting and operating means is generally similar to that illustrated in Patent #l,776,4 14, hereinbefore referred to. In the present construction, however, the forward end of the lever 45 is provided with an upstanding arm 49 that extends above the mouth or pouring lip of the bucket. This arm 49' affords a convenient'handle which can be reached through the medium of a hoe or other suitable implement, by a workman stationed inside the building for breaking the toggle to cause the bucket to be swung forward and to discharge its contents upon one of the chutes 25. The handle 49 is conveniently accessible both in the normal position of the bucket and in the pouring position thereof. a a H I have described what I believe to be the best embodiment of my invention. -I do not wish,

1. A hoisting apparatus for use with buildings.

under erection, including a pair of spaced parallel masts, a carrier frame disposed between the masts and partially embracing the same, struts disposed outside the masts and secured to the outer faces thereof, said struts extending toward the building and being offset inwardly and passing through an opening in the building wall, and means adjustably secured upon the struts for bearing against the inner andouter faces of the building wall toclamp the wall between them at opposite sides of the wall opening. V

2. A hoisting apparatus for use with buildings under erection, including a pair ofspaced parallel masts, a carrier frame disposed between the masts and partially embracing the same, struts disposed outside the masts and secured to the outer faces thereof, said struts extending toward the buildingand being offset inwardly, and passing, throughan openig in the building wall, a cross tie adjacent the building wallrigidly unitting the struts, and means adjustably earried by the struts for bearing against the inner face of 3. A hoisting apparatus for use with buildings under erection, including a pair of spaced paral- .lel masts, a carrier frame disposed between the .masts and partially embracing the same, struts disposed outside the masts and secured, to the outer faces thereof, said struts extending toward the building and being offset inwardly and passing through an opening in the building wall, means secured :to the struts adjacent the outer face of the wall for tying the struts at a fixed distance from one another and for hearing against the outer face of't e wall, and: cooperating means secured to the struts adjacent the inner face of the wall for bearing against the inner face of the wall. 1

4. A hoisting apparatus for use with-buildings under erectioninclu'cling 'apair of spaced parallel masts, a carrier frame disposed between the masts and partially embrac'mg'the same, and means for tying the masts to a building wall and maintaining them in parallelism with"one another andin a plane parallel .to the wall, comlel sectional masts, hoisting means supported jointly by the masts at the upper ends thereof, a carrier frame disposed between the masts and partially embracing the same, means securing 'the sections of each mast in alignment, and

means tying the masts to one another comprising arms rigid with the respective masts and extending laterally therefrom, and a cross member located beyond the normal path of travel of the carrier and rigid with saidarms.

6. A hoisting apparatus for use with buildings under erection, including a pair of spaced parallel sectional masts, a carrier frame disposed between the masts and partially embracing the same, and means tying the corresponding sections of the two masts rigidly to one another, comprising arms rigid with the respective mast sections and extending laterally therefrom, and a' cross member located beyond, the normal path of travel of the carrier and rigid with said arms.

' CONRAD cARLsoN.