US2203113A

US2203113A - Hoist

Info

Publication number: US2203113A
Application number: US206808A
Authority: US
Inventors: Reinhold A Uecker; Ingar G Rambo; David E Beatty; Fred H Graser
Original assignee: Reinhold A Uecker; Ingar G Rambo; David E Beatty; Fred H Graser
Priority date: 1938-05-09
Filing date: 1938-05-09
Publication date: 1940-06-04
Anticipated expiration: 1957-06-04

Description

June 4 1940- R. A. uEcKr-:R E'r AL 2,203,113

` rios'r Y Filed lay 9. 1938 2 Sheets-Sheet 1 ATTORNZY.

June 4, 1940. R, A, UECKER Er AL 2,203,113

` Holst' Filed lay 9, 195e z sheets-'sheet a Patented June 4, 1940 UNITED STATES PATENT oFFlcs' HOIST Reinhold A. Uecker, Ingar G. Rambo and David E. Beatty, Wauwatcsa, and Fred H. Grauer, Milwaukee, Wis. l n Application -May 9, 1938, Serial No. 206,808 13 Claims. (Cl. 212-61) This invention relates to hoists and more particularly toa hoist for use with scaifolds.v

In construction 'and maintenance work employing scafiolds no satisfactory hoist has been devised for raising fairly heavy loads. In stone work, In particular, it is not uncommon to have loads of four to five hundred pounds. Such loads cannot be raised by an ordinary goose-neck.

One object of the present invention isto devise a hoist suitable for relatively heavy loads which is readily adaptable to a scaffold.

Another object of the invention is to produce a hoist including a drum and reel which is adapted to raise a load von the exterior of the scaffold and swing it onto the top of the scaffold. n A further object is toproduce a hoist for use on scaffo'lds, the hoist having a swinging arm in which the hoisting reel remains stationary during the swinging of the arm.

A further object is to produce a hoist for use on scaiolds which is readily portable from one position to another.

A further object is to produce a, hoist for use on scaffolds which may be readily converted from a motor drive toa manually operated hoist.

A further object of the invention is to produce a hoist for use on `top of scaffolds which may be a load at any desired elevation.

secured in place with a minimum amount of labor. 'Another object of the invention is 'to produce a hoist for use on scaffolds which can readily and safely either raise or lower relatively heavy loads. A further object of the invention is to produce a hoist for use on scaiIolds which will support A further object is to produce a hoist for use on scaiolds which can be used in combination with a safety guard rail. i

These and other objects of the invention, the nature of which will become apparent as the descriptlon progresses, are accomplished by means of 'the hoist shown in the accompanying drawings and described hereinafter in the speciflcation.

In the drawings:

Fig. 1 is a perspective view of a tubular scaffold of the type shown and described in the United States patent to Reinhold A. Uecker, Serial No. 2,043,498, issued June tion mounted thereon; i

Fig. 2 is a side elevational view of the hoist together with one cornerof the scaffold;

Fig. 3 `is a cross-section on the line 3-3 of Fig.

the direction of 4the arrows;

3, and -shows the retaining ratchet;

9, 1936, withl a hoist, forming the subject matter of the present inven- Fig. 5 is an end view of the lower end of the hoist, showing the connection to the scaiIold; and

Fig. 6 is a cross-section on the line 6-6 of Fig. 2, looking in the direction of the arrows.

Referring to the drawings, in which like nu-v merals designate like parts throughout the several views, and referring particularly to Fig. l, the scaffold is shown as composed of a pair of end frames or rings, generally designated IO-II, joined by .c ross braces II-II, the rings in spaced parallel relationship. Each 'l ring I0 may be superimposed on similar rings I2 which support the rings III-from the ground. Each pair of rings I2-I2 is connected by cross braces I3I3, similar to the cross braces Il, u which maintain the rings I2 in alinement with the rings Il) and in spaced parallel relationship. Coupling pins I4 join the lower end of the upper rings III with the upper ends of the lower rings I2.

Each ofl the rings or end frames I0II or 2 I2-I2 comprises a pair of vertical posts IS-IS connected by horizontal braces Iii-I6 which are adapted to support scaffold planking which forms a deck I1. Diagonal braces I8-IB join the horlzontalbraces I6-I6 and form the end frames or 25 rings I0 and I2 into integral rigid units.

All of the above structure is in itself old, and is more fully described in the Uecker patent, supra.

If desired, the top section of the scaffold or the deck I1 may be protected by a guard railing I9, which may extend on one or more sides of the deck.

The hoist, which is generally designated 25, is shown in perspective in Fig. 1, and is shown' in detail in Figs. 2-6 inclusive. It comprises a standard 26 which'is preferably tubular, having an extension 21 formed on the lower end. The extension 21 nts snugly within the tubular post II and forms a pivot about which the standard 26 may rotate. 40

The upper end of the standard is provided with a goose-neck 28 which bends away from the standard andl terminates in a. yoke 29 which sup- 'ports a pulley 30. Supporting braces 3| and l2 reinforce the goose-neck and permit heavier loads 45 to be raised.

'I'he standard 26 is braced by a supporting frame which comprises a pair of tubular membersV 35and 36'whlch are connected to a ring 31 at ltheir upper ends, and diverge to the top of the 4deck I1.

The ring 31is freely rotatable on the standard 26 and is heldin position by a pair of rings ll-ll sweated or welded to the standard 28. 'Ihe lower divergent ends ofthe tubular members 35 and 36 55 which maintain 10 l 2 are Iioined by an angle iron 42, which is adapted to rest on the top of the deck Il and be secured to the horizontal brace of the scaffold by a hook bolt 43.A The angle iron 42 is connected to a ring 5 44 surroundingthe standard 26 by a tie rod 45 which may be tubular, as shown, or other suitable shape. The ring 44 is held in its proper position by rings 46-46 sweated or welded to the standard 26. The standard 26 is thus freely rotatable relalil' tive to the rings 3l and 44.

A, reel, generally designated 50, is mounted inA a saddle 5I which is supported on the braces 35, 38.

the' reel and shaft may turn togethenthe shaft i5 I2 being mounted in bearings 53-53 in the saddle The shaft 52 has crank handles 55 on the opposite ends, outside the bearings 53-53 so that the rcel can be woundor unwound by turning the W shaft.

f movable and replaced by a pulley 56, which may be driven by a motor or engine 58, shown 4dotted in Fig. 2.

The reel 50 has a brake drum 60 formed on one side thereof, which is'engaged by a brake band @2te stop or retard the descent of the load. The braking action is regulated by a lever 63 pivoted to the sad'dle 5I.

A ratchet 651s secured to the opposite side of ai); the reel 50 from the brake and is engaged by a pawl 86, pivoted to the saddle 5i to prevent unreeling of the reel 50 and hold a load at any given elevation.

In order to enable the standard 26 to be turned readily to swing a load onto the top of the scaiiold a' ring 'i5 is fixed to the goose-neck 28. The ring t-carries a pulley i6 pivotally mounted, which is 'adapted toguide the rope Ti between the pulley- 8d and the reel 50. By making the support for A@ the pulley 76 circular, the goose-neck may be rotated to swing the load onto the deck' of the scaiold without any tendency of the load to swingout due to the weight. f

` .The guard rails i9 may be iixed to the hoist 25 throughrotatable brackets 80 mounted on the 'istandard between rings 8i-8L Having thus described the invention it is realized that it is susceptible to various changes and modifications, and it is not therefore desired to se limit the invention to the precise form herein shown and described but only by the scope of the appended claims. The invention set forth in the foregoing specication is hereby claimed as follows:

1. Ina scaiold having a vertical post, and a horizontal member adapted to carry a deck, a hoist comprising, a normally vertical standard, an extension on said Astandard engageable with said post to form the connection therebetween, a goose-neck formed on the upper end y of said standard, a brace connected between said gooseneck and `said standard, and a second brace rotatably'A receiving sai/d standard above its connection with said iirst brace and attachable to said horizontal member to reinforce the hoist.

2. In a scaiold having a tubular post, a hoist comprising, a tubular standard, a tubular, exten- .sion formed on the lower end of said standard s engageable with said tubular post to support the i0 standard from the post and permit the same to rotate about a vertical axis, a goose-neck formed on the upper end of said standard, a pulley carried by said goose-neck, and means carried by said standard and rotatable relative thereto to 75 secure a guard rail.

The reel is carried on a shaft 52 so that- One of the handles may be made re- `3. In a scaifold having a vertical post, and a horizontal member connected thereto, a hoist comprising, a standard, an extension on the lower en'd of said standard engageable wlth'sald. post to form a connection therebetween, a goose- 5 neck formed on the upper end of said standard, a

'pulley carried by said goose-neck, 'a brace connected with said standard below said goose-neck,

a second brace connected with said standard adjacent said extension, means joining said l0 braces at Vthe outer end thereof, and means rey leasably securing the outer ends of said braces to f said horizontal member.

4. In a scaffold including a vertical post and a horizontal member xed to saidpost and adapted 15 to support scaiold planking. a hoist comprising, a standard, an extension on the lower end of said standard engageable with said post to form a connection therebetween, a goose-neck formed on the upper end of said standard, a pulley carried by said goose-neck, a iirst brace joining said standard with the outer end of said goose-neck, a second brace connected with said standard above the connection of the first named brace therewith, and means to join the lower end of said second brace with the horizontal member of. said scaffold. s

5. In a scaffold including a vertical post and a horizontal member fixed to said post and adapted to support scaffold planking, a. hoist comprising. 3o i a standard, an extension on the lower end of said standard engageable with said post to form a connection therebetween, a .goose-neck formed on the upper end of said standard, a pulley carried by said goose-neck, a supporting brace join'- ing the standard with the outer end of the gooseneck to increase the load-bearing ability thereof, f a pair of braces connected to said standard above the lower end of said supporting brace and d iverging downwardly, a supporting member joining the lower divergent ends of the said pair ot braces, and adapted to rest on the planking, and means to fasten the lsupporting member to the horizontal member.

6. In a scaold including a vertical post and a horizontal member xed to said post and adapted to support scaifold planklng, a holst comprising, a standard, an extension on the lower end oi' said .standard engageable. with said post to form a connection therebetween, a goose-neck formed on the upper end of said standard. a pulley'carried by said goose-neck, a supporting brace joining the standard with the outer end of the gooseneck to increase the load-bearing ability thereof. a pair of braces connected to said standard above the lower end of said supporting brace and diverging-downwardly, a supporting member Joining the lower'divergent ends oi' the said pair of braces, and adapted to rest on the plankinf;A means joining the supporting member with'said standard, and means to fasten the supporting member to the horizontal member.

7. In a scaold having a vertical tubular post and a horizontal member connected with'said 5 post, a hoist comprising a standard, a tubular extension on the lower end of said standard engageable with said post to rotatably support the standard therefrom, a goose-neck formed on the upper end of said standard, a pulley carried by said goose-neck, a ring on said standard, means to secure said ring at a iixed elevation on said standard while permitting the standard to rotate freely therein, and an outwardly and downwardly sloping brace secured to said ring and at- 76 upper end'l of said standard, a pulley carried by said goose-neck, a ring on said standard, means to secure said ring at a fixed elevation on said standard while permitting the standard to rotate freely therein, an outwardly and downwardly sloping brace secured to said ring, and means to secure said brace to said horizontal member to reinforce said standard'ata point spaced from the bottom of said standard.

9. In a scaffold having a vertical tubular post and a horizontal member connected with said post, a hoist comprising astandard, a tubular extension on the lower end of said standard engageable with said post to rotatably support the standard therefrom, a goose-neck formed on the upper end of said standard, apulley carried by said goose-neck, a ring on said standard, means to secure said ring at a fixed elevation on said standard while permitting the standard `to rotate freely therein, ring and diverging outwardly and downwardly, a horizontal brace connecting the lower outer ends of said braces and means to secure said horizontal brace to the said horizontal member to reinforce said standard.

l0. In a scaffold having a vertical tubular post and a horizontal member joined to said post, a hoist comprising a standard, a tubular extension on the lower end of said standard engageable with the post to rotatably support the standard therefrom, a goose-neck formed'on the upper end of said standard, a brace connected between said' goose-neckand said standard, a pulley carried by said goose-neck, a ring on said standard above the connection with said brace,

means to secure the ring at a xed elevation on said standard while permitting the standard to rotate freely therein,- and an outwardly and downwardly sloping brace secured to said ring and attachable to said horizontal member to reinforce said standard.

11. In a scaold having a vertical tubular post and a horizontal member joined to said post, a hoist comprising a standard,a tubular extension on the lower end of said standard engageable with the post to rotatably support the standard therefrom, a goose-.neck formed on the upper end of said standard, a brace connection between said goose-neckv and said standard, a pulley carried by said goose-neck, a ring on said standard a pair of braces connected to said'` above the connection with said brace, means to secure the ring at al fixed elevation on said standard while permitting the standard to rotate freely therein, a pair of braces connected to said ring and diverging outwardly and downwardly, a horizontal brace connecting the lower outer ends of said last named braces, and means to secure said horizontal brace to said horizontal member to reinforce said standard.

12. In a scaffold having a vertical tubular post and a horizontal member connected with said` post, a hoist comprising a standard, a tubular extension on'the lower end of said standard engageable with said post to rotatably support the standard therefrom, a goose-neck formed on the upper end of saidv standard, a pulley carried by said goose-neck, a ring on. said standard, means to secure said ring at a fixed elevation on said standard while permitting the standard to rotate freely therein, a pair of braces connected t'o said ring and diverging outwardly and downwardly, a horizontal brace connecting the lower outer ends of said braces, means to secure said horizontal brace to the said horizontal member to reinforce said standard, a second ring on said standard, means to secure said second ring on said standard at a fixed elevation thereon while permitting the standard to rotate therein, and a brace connecting said second ring with said horizontal brace.

13. In a scaffold having a vertical tubular post and a horizontal member joined to said post, a hoist comprising a standard, a tubular extension on the lower end of said standard engageable with the post to rotatably support the standard therefrom, a goose-neck formed on the upper end of said standard, a brace connected between said goose-neck and said standard, a pulley carried by said goose-neck, a ring on said standard above the connection with said'brace, means lto secure Q the ring at afixed elevation on said standard a second ring on said4