US1609600A - Hoist - Google Patents

Description

Dec. 7 1926.

S. BERGLING ET AL HOIST Filed Sept. 2l, 1925 S Sheets-Sheet 1 Dc. 7, 192e.

1,609,600 s. BERGLING ErL HOIST Filed sept. 21, 1925 5 sheets-sheet 2 Jg'dfZ iride/450m, MM l Dec. 7, 1926. 1,609,600

S. BEPGLING ET AL HOIST Filed Sept. 21l 1925 5 Sheets-Sheet 3 Dec. 7,1926. 1,609,600

S. BERGLING ET AL l HOIST Filed Sept. 2l, 1925 5 Sheets-Sheet 4 Dec. 7

S. BERGLING ET AL HOIST Filed Sept. 21, 1925 5 Sheets-Sheet 5 W .....qu v 1.114

Patented Dec. 7, V1926.

Unirse s'rAiss sWnN BERGLING Ann KARL nivnnnson, or onronoo, inninors, Assieivons 'ro Rr.-

nirinnn Hois'r oo ivrranr; 'or CHICAGO, Immers, A eonronnrion;

noIs'r.

viippiicrcion mea september 2i, i325. seriali irq, 573,513,

Our invention relatesI to improvements., iny hoists especially` adapted for use 1n lziuild-i` ingoperatiOns or theflile, the 013.160@ Of thev invention beingto providesiimple, durable andi eiiicient apparatus of this character, the present: invention being an improvement over that disclosed in Qur pending applicationffiled .lune 15, 1925 Serial No;V 37,049.

"Other objects will appear hereinafter:

The inventioi'i consists in the C.213.01@lll@Y1,SeA and arrangementsoii parts hercillifteflf d scribed and claimed.

The inventiony will be best understood by reference to the` accompanying 'drawings forming a part of this specification, and in which, "i

Fig. 1 is, side View of a portion or a, hoisting apparatus embodying the invention 'Y' Y Y Fig. 2 is a tropA plan view of the same,

Fig. 3 is a horizontal section of the; same, Fig. 4 is a'verticall transverse section of therme.. a

' Fig. 5 isa vertical longitudinal section Of the same, andV Y FigpG is a detail View illustratingbrake actuatingmechanisin employedin the Construction.

' The preferred form of construction as illustrated in tho drawings comprises a suit able'frameA 10 having ha'. gear casingv 11 mounted Ythereon. Arranged'in` the gear casing :ll are two axially aligning Winding shafts 12A and 13, the s haft-12 carrying a Winding drum 14 and the'shalft' 13 carrying Winding drum'l`5. As Will be noted the tivo shafts 12 and 13 are mounted in suitable bearings formed in the Vsides of casing ll'and the Winding drums 14 and V15 are mounted on said shafts outside of said casing. Yhoisting cable 16 is partially Wound upon the drums 14and 15, said cable being passed overvguide 'pulleys 17 betweensaid drums so as to permit ot the free` travel of said hoisting cable trom one drum 'to the other. VAs will benoted, the hoistingcable 16 is Wound on eaoh'ofthe' drums'14A and: 15 iii they same direction so that rotation of either of said drums in the saine direction Willcausewinding "up of the' 'cable thereon, providing, of course, that at the same time Athe other Vdrum is simultaneously released i for unwinding.

' Asbest shown in Fig. 3, the shafts 12 and 13 ,carryV drivingv gears 18 meshing ywith rireris 119iY fired; te 2L-flriwire shaft 20 in. the eser ,Gesine 11i? "A ehith' rrs'lilbr 2l splines. Qa the Sheff. 2Q- betwe'eri the rinors 19a es@ said. rimessi are, irfovrled im' their' inner; faces with Cftcli'teeth, @arranged t0 engage the clllutcli A' The, clutchh'21`isoperatively connected uiith rocker arms 23 can. riad by @Ver .Gel Sh'ft24'iiu1tdin @asias 1l and. Grt-s thrsh" the fr "tlirefjf es.. best Sherri Fiss l and?, the .Sheftl24 Carries et its; upper end' e' rorker arm( 25. Connected; e link 26, with e! recher erin 27 011 a; Vertical rocher shaftQS'mountedat the,

forward @lid @if 'the @sulla Ylli- The' rbclr sliaft Carries e QIQSS arm 29. the endSfOf-"r' I which er@ conneCteCl with the -IClS, a'GOltrol cable 30, said control cable being lthe usualA control' cable employed or'this pur- P'Ose'and 'whereby tpe rocker Sheff. 28 may be melted either manually Q1 eutmiticlly 'in' mensuel Way,

lt-Wrill he noted that the Operation Q the rocker Shaft 2S Will ill @Urn Operate the rocker shaft 24 and thus move the Clutch 2l into or out et engagement with the Clutch members 22 and there-by operate the gears 1:8; to drive one 'ortbe other the Shets 12 or 13 and to release the other-,

AS best Shown irl Figs., '5 and. 6 the rocker shaft 28 carries ,a rocker 310s which iS secured a double acting head 32 which is in ,substantially inverted. Yrform and 11er"- maily engages corresponding recess in' e Vcani block 3.8 mounted-Orl rocker 'arms/34 secured to a transverse rocker shaft 35. The rocker shaft ,35 carries at its Opposite ends rocker arms ,3 6 connected by links" 3; 7 with brake bands 3 8 engaging-brake drums 39on 'the Winding drums 14 and 15,. By this arrangement as the rocker shaft 28 shifts in either direction from its normal central position, the cam head 32 operating on the cam block 3,3, raises the rocker arms 34 to rock the rocker shaft 35 upwardly, thus simultaneously 'applying the brake f bands, 38 to the brake drums 39; Each-.of the brake bands 38 is anchored by a link 40 to a corresponding post ofi abutment 41 on the frame 10 and the rocker shaft 35 is provided 1with a depending rocker arm 42 connected'Withatension spring 43 adjustably secured by a rod 44 `to a post or abut-ment 4'5 on the traine 10. -By this' arrangement it will be observed that the brake bands 38 will be normally held in operative engagement with the brake drums 39 by the spring 43 but that upon rocking of the shaft 28 in either direction said brake bands will be released, thus freeing the corresponding winding drums.

As best shown in Figs. 3 and 5, the driving shaft Carries a driving gear 46 meshing with a pinion 4:7 on a shaft 4S carrying a driving` gear ai) on the outside of the casing ll. Driving gear 49 meshes with a driving pinion 5() on the motor shaft 5l of electric motor 52. The motor 52 is operated to keep the driving gear 46 and the shaft 2() constantly rotating in the same direction but at relatively slower speed. lt will be noted that by manipulating the cable to rock the shaft 2S in either direction, the corresponding drum la or l5, as the ease may be, will be operated to wind or retract the corresponding end of the hoisting cable 16 and pay out the other end thereof, and that when said rocker shaft is shifted back to normal position the operation of both drums will cease and thecorresponding brake bands will be automatically applied to stop the movement of the hoisting cable.

The hoisting cable 16 is passed over suitable guide pulleys and connected with the usual elevator cages operating in the usual elevator shafts in the usual way, and if desired, the said elevator cages are arranged to automatically operate the control cable 30 as will be readily understood by those skilled in this art and is more fully disclosed in our co-pending application.

The construction disclosed is a simple and efficient hoisting apparatus especially adapted for use in building operations and the like. The specific form and arrangement of parts will be found to be an effective one for the purpose and one capable of economical manufacture and operation.

lhile we have illustrated and described the preferred form of construction for carrying our invention into effect, this is capable of variation and modification without departing from the spirit of the invention. idle, therefore, do not wish to be limited to the precise details of construction set forth, but de:ire to avail ourselves of such variations and modifications as come within the scope of the appended claims.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

l. A hoist comprising a gear easing; two shafts mounted in said casing, said casing being provided with bearings in its sides and said shafts extending through said bearings and projecting from said casing; winding drums on said shafts outside of said easing; a hoisting cable extending between and wound upon said drums; gearing and clutch mechanism within said casing for operating said winding drums; and a driving shaft within said casing and cooperating with said gearing and clutch mechanism for operating said winding shafts, substantially as described.

2. A hoist comprising a gear casing; two axially aligning winding shafts mounted in said casing, there being bearings for said shafts in the sides of said easing and said shafts extending through said bearings and projecting from the sides of said casing; winding drums on said shafts outside of said casing; a .driven shaft extendin through the side of said casing; gears an clutch mechanism located within said casing and connecting said ldriven with said winding shafts; means connected with said clutch mechanism and extending through a wall of said casing for operating said clutch mechanism; and a hoisting cable eX- tending between and partially wound on said drums, substantially as described.

3. A hoist comprising a gear casing; two axially aligning winding shafts mounted in said easing and extending through the sides thereof; winding drums on said shafts outside of said casing; driving gears on said shafts within said casing; a driven shaft within said casing and carrying gears meshing with said winding shaft gears; a clutch mechanism on said driven shaft for operating said winding shafts; a rocker shaft in said casing and projecting through a wall thereof and operatively connected with said clutch mechanism; and a hoisting cable extending between and partially wound upon said drums, substantially as described.

t. A hoist comprising two axially aligning winding shafts; winding drums on said shafts; guide pulleys between said drums; a hoisting cable partially wound on said drums and extending over said guide pulleys; a driving gear on each of said winding shafts; a driving shaft adjacent said winding shafts; driving pinions on said 4driving shaft meshing with the driving gears on said winding shafts; clutch elements on the inner sides of each of said driving pinions; a clutch member splined on said driving shaft between said driving pinions and arranged to be shifted into and out of engagement with the clutch elements thereon; an electric motor; a. reducing gear connection between said electric motor and said driving shaft; a rocker shaft arranged adjacent sai-d shiftable clutch member and operatively connected therewith; a second rocker shaft operatively connected with said first rocker shaft; a cross arm secured to said second rocker shaft; an operating cable secured to the ends of said cross arm; a rocker arm on said second rocker shaft; a V-shaped cam head on said last mentioned rocker arm; a cam block having a cam recess fitting said cam head; a rocker arm secured to said cam block and to a bra-ke rocker shaft; a brake drum secured to each of said winding drums; ranged to hold said brake bands normally a brake band for each of said brake drums; engaging said brake drums, substantially 10 an. operative connection between each of as described.

said brake bands and said brake shaft, In testimony whereof We have signed our whereby operation of said brake shaft'reb names to this speeioaton.

leases both of said brakes; a rocker arm on l said brake shaft; and al spring connected SWEN BERGLING. with said brake shaft rocker arm and aI- KARL ANDERSON.

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