US1686971A

US1686971A - Hoisting mechanism

Info

Publication number: US1686971A
Application number: US532338A
Authority: US
Inventors: Morris P Holmes
Original assignee: SULLIVAN MACHINERY CORP
Current assignee: SULLIVAN MACHINERY Corp
Priority date: 1922-01-27
Filing date: 1922-01-27
Publication date: 1928-10-09
Anticipated expiration: 1945-10-09

Description

Oct. 9, 1928.

M. P. HOLMES HOISIING MECHANISM Filed Jan. 27. 1922 Patented Oct. 9, 1928,

UNITED STATES 1,686,971. PATENT OFFICE.

uoimrs r. nomns, or cnannmonn'nnw nam snma nssrenon 'ro sunnivnn MA- cnmnmr oonronarron, A. CORPORATION or massacnosnr'rs.

norsrrne mnommsm.

A pndaaon filed January 27, 1922. Serial n. 532,338.

My invention relates to hoisting mechanisms, and more particularly to hoisting mechanisms of the portable type.

An object of my invention is to provide an improved hoistmg mechanism. Another object of my invention is to provide an 1mroved hoisting mechanism havlng improved riving mechanism which may be either of the steam or air turbine variety. A further object of my invention is to provide an 1mproved turbine drive particularly adapted for incorporation in a hoisting mechanism. Other objects and advanta es of my invention will hereinafter more fully appear. In the accompanying drawings I have shown for purposes of illustration one form which my invention may assume in practice.

In these'drawings,-

Fig. 1 is a central vertical section, partially in elevation, through a holsting mechanism constructed in accordance with one illustrative embodiment of my invention.

Fig. 2 is a transverse section on the line 22 of Fig. 1.

Fig. 3 is a developed section on the line 33 of Fig. 2.

In the embodiment of my invention which I have elected to describe and show for purposes of illustration, there is provided a hollow drum 1 closed at its opposite ends by plates 2 and 3, which plates are provided with projecting stub shafts 4 and 5 respec tively. The stub shaft 4 is journaled in a bearing 6 in the upper end of a hanger 7 and this hanger is herein formed integral with a base 8. At the other end of the base 8 is formed a second hanger 9 which provides a bearing 10 for a collar 11 formed upon a member 12, which will be later more fully described. Within the collar 11 in suitable bearings 13 the shaft 5 is journaled.

\Vithin the drum is arranged an improved drum driving mechanism which I shall now describe. The drum 1 is cut away at one side to permit the insertion therein of a plate member 14, which plate member-*is provided with radially projecting flanges or

plates

15 and 16, in each of which a series of intermediate direction reversing ports -17 and 18 are formed. Other structural features of the

members

15 and 16 will be described hereafter. Journaled in the end plate 2 and in a partition plate 20, by means of-suitable bearings 21 and 22, is a shaft 23 upon Which there are mounted a series of, herein, three

wheels

24, 25 and 26, which wheels carry sets of blades 27, 28 and 29, respectively. Projecting from the end plate 2 is a nozzle member 30 Which is arranged to discharge to the first series of blades 27. After the operating fluid at a high velocity passes through the blades 27, it is intercepted by and has its direction reversed in the intermediate ports 17. After this, it passes through the blades 28 upon the wheel 25 and thereafter has its direction of flow once more reversed by the intermediate ports 18 before passing through and acting upon the blades 29.npon the wheel 26. The exhaust fluid is led away by longitudinally extendingpassages 31. Herein no effort has been made. to display the precise shapes of the blades and ports as these will of course vary dependent upon the type of turbine selected, etc. v Further, although but one nozzle and one set of intermediate reversing ports has been shown, as being sufiicient for purposes of illustration, it will be obvious that two sets arranged diametrically opposite each other might very properly be used and would gccurately balance the operation of the tur- For the purpose of obtaining additional starting torque, I have provided means for supplying fluid directly to the second and third stages, this.

means including nozzles

33 and 34 formed in the

intermediate members

15 and 16, and fluid is supplied to these nozzles by passages 35 and 36, indicated by dotted'lines, leading from a chamber 37 in the end late 2. v

For t e purpose of supplying pressure fluid to the

nozzles

30, 33 and 34, a connection 38 is led from a suitable source of fluid under pressure and then into a chamber 39 which is arranged in alincment with the axis of the drum. A passage 40 formed in a sleeve-like member '41 extends into a bore 42 formed in the end plate 2. Within the pas: sage 40 a valve 43 is reciprocable, this valve having a ring 44 thereon and an end seating portion 45 adapted to cooperate with a. seat 46 formed at the inner end of the passage. 40. Spaced annular rows of ports 47 and 48 lead through the wall of the sleeve 41 and communicate with an annular passage 49 which leads by a passage 50 to the nozzle 30. A passage 51, shown in dotted lines because it'is on the side toward the observer of the section in Figure 1, leads to the chamber 37.

trol the movement of the valve and a suitable segment rack and latch will be used to enable positive holding of the valve 43 in full closed position, whenever a supplemental throttle upon the line 38 is not used.

The mode of operation of the fluid supply means will be readily apparent. When the valve 43 is moved toward the left by pulling upon the lever 53 in a left hand direction, fluid entering from the passage 38 and chamber 39 will :pass through the passage 40 through'the Forts 47 and 'into the annular passage 49. through the passage 50 to the nozzle 30 and in part will return through the ports 48 to pass by the then unseated end seating por- 'tion 45 0f the valve 43 and so by way of passage 51 to chamber 37, and through passages 35 and 36

tonozzles

33 and 34. Vi hen the motor has come up to speed, the lever 53 may be moved to the right, causing the portion 45 of the valve 43 to seat upon the seat 46; and thereafter fluid will be supplied only to the nozzle 30.

For the purpose of effecting a' reduction of the high speed of rotation of the turbine to' a suitable speed of rotation for a drum, the following illustrative form of reduction gearing may beemployed. The shaft 23 is provided with a spur gear 55 at one end thereof meshing with an internal gear 56 which is secured to a shaft 5 8 rotatably mounted in bearings in a suitable bracket 57 carried by the end plate 3. .The internal gear 56 is secured to the shaft 58 which extends through the bracket 57 and the shaft 58 is also provided at its opposite endwith, a small pinion 59 which meshes with a larger pinion 60 mounted upon a shaft 61 which in turn passes through the end plate 3 and carries upon its outer end a pinion 62. The pinion 62 drives a driving gear 63 which is journaled upon a stud or stub shaft 64 secured to the end plate 3, and driving gear 63 intermeshes with an internal gear 65 formed upon a collar 66 secured to the member 12. The collar 66 is provided with a braking surface 67 with which a brake band 68 having suitable man-.

brake band 68 is applied and the brake band 71 released and that the .valve controlling lever 53 is moved to the left in Figure 1.

I Fluid will then be supplied, as previously described, both to the nozzle 30 and to the

nozzles

33 and 34. Accordingly the

wheels

24, 25 and 26 will begin torevolve, turning in a counter-clockwise direction looking athis fluid will then in part flow the hoisting mechanism from the right hand endthereof. As a result thepinion 55 will.

turn in a counter-clockwise direction, as will the internal ear 56 and therefore also the pinion 59. Ks a result, the gear 60 will turn in the opposite direction, or clockwise viewed from the right hand end ofthe hoist. The gear 62 will turn similarly; the driving gear 63'will turn counter-clockwise and, the internal gear 65 being held stationary. the drum 1 will be caused to rotate in a clockwise direction. that the reaction of the fluid upon the

intermediate plates

15 and 16 will tend to assist rptation of the drum. Thefluid, when its velocity has been reduced by passage through the blading, will flow out throu h the series of exhaust ports 31 arranged about the periphery of the drum. When the band 68 is released and the band 71 applied, the drum 1 may beheld or retarded as desired while the turbine continues to run, the gear 65 then being driven.

It will be obviousthat by suitable minor changes in design of the parts, the turbine may be driven either by steam or air-and that this turbine may be of either the impulse, reaction, or combined impulse and reaction type and that I have simply shown one form which it may assume in a, diagrammatic manner.

While I have in this application specifical turbine with its rotor disposed coaxial 'of said drum, and means movable with and extending into said drum for directing fluid flow to said turbine.

2. In a hoisting mechanism, a drum mounted for rotation, driving means for said drum including a turbine whose rotor lies within said drum and rotates upon an axis coincident with that of said drum, a nozzle carried by said drum, and a member adapted to directly-support said drum and to conduct fluid to said nozzle.

3, In a hoisting mechanism, a drum mounted for rotation, and driving means therefor including a turbine the nozzle means of which is carried by said drum and the rotor of which rotates upon an axis coincident with the axis of said drum.

4. In a hoisting mechanism, a drum mounted for rotatlon and driving means therefor including a turbine whose rotor includes a plurality of moving blade wheels It will therefore be seen rotatable upon an axis coincident to the axis of rotation of said drum, and a nozzle and at least one set of reverse blading secured to said drum.

5. In a hoisting mechanism, in combination, a drum mounted for rotation and driving means therefor includin a multistage turbine having a rotor rotata 1e on an arms coincident with the axis of said drum, reversing blading means secured to said drum, and reducing gearing connecting said rotor and said drum to effect opposite rotation of said drum and said rotor.

6. In a hoisting mechanism, a driven element mounted for rotation, driving means therefor including a multistage turbine hav-' ing a rotor, a shaft for supporting the same, means forsupplyingfluid directly to stages subsequent to the first stage during startin to increase the starting torque thereof, an

means for controlling the supply of fluid to said turbine including a member supported b tlie first and subsequent stages of said turbine and a member normally occupying a position to prevent direct supply to said latter stages.

'7. In a hoisting mechanism, a drum, and

a. multistage turblne driving said drum andhavin relatively movable e ments, said elements being supported by said drum, one of said elements being adapted to direct fluid flow through said turbine. r

8. In a hoisting mechanism, a drum, and a multistage turbine having relatively movable elements, one of which directs fluid flow through said turbine, one of said elements being directly connected to said drum and the other element being indirectly supported by said drum..

9. In a hoisting mechanism, adrum, a multistage turbine having relatively movableelements, which are supported by said drum, means for supplying fluid to all of said stages during starting, and means for cutting out some of said stages after starting.

10. In a hoisting mechanism, a drum, a multistage turbine. having relatively movable elements, which are supported by said drum, means for supplying fluid to all of said stages during starting, and means for cutting out some of said stages after starting while automatically retaining in o'peration the remaining stages.

said driven element to conduct fluid to 11. A mechanism comprising a drum, a driving motor therein, said drum having a ortion of its periphery which is removable or allowing access to said motor through the periphery of said drum, and a motor element carried by said portion and removable therewith through said periphery.

12. In a hoisting mechanism, a winding drum, a coaxial turbine therein having coaxial relatively rotatable rotor and nozzlecarrying elements, means whereby one of said elements transmits power to said drum through reduction gearing and means whereby the other element transmits power directly to said drum.

13. In a hoisting mechanism, a drum, a coaxial multista e turbine therein having relatively movable elements one of which is carried by said drum and directs fluid flow for said turbine, means for connecting the other of said elements in driving relation to hold the same stationary to eiiect rotation of said drum.

15. A hoisting mechanism com rising a drum, a motor having a rotor sha t extending therein, an ,end plate carried by said drum and, having a bearin supporting bracket spaced inwardly there rom and carried thereby, and driving earing between said motor and drum inc uding a pinion carried by said shaft, coaxial gears rotatabl supported by said bracket at opposite sides of the bearing thereon and at the same side of said end plate, one of said gears meshing with said pinion, another set of coaxially disposed gears carried b and disposed on each side of said end p ate one of which meshes with the remaimng gear of the other set of coaxial gears, and operative connection between the other gear of said other set and said drum.

In testimony whereof I afiix my signature.

MORRIS P. HOLMES;