US1706441A - Crane - Google Patents

Description

March 26, 1929. c w DAUGHS 1,706,441

CRANE Original Filed June 23, 1924 4 Sheets-Sheet, 1

, INVENTOR.

BY Q Q A TTORNE Y.

March 26, 1929. c. w. DAUGHS 5-4 CRANE Original Filed June 25. 19 4 Sheets-Sheet 2 IN VEN TOR.

BY q S g ATTORNEY.

MarchZB, 1929.

c. w. DAUGHS CRANE Original Filed June 2:5, 1924 4 sheets-sheet s PI E INVENTOR. C. 14 D (/6195 ATTORNEY. v

March 26 1929. c. w. DAUGHS CRANE 4 Sheets-Shet 4 Original Filed June 23, 1924 I INVENTOR. C W Dfll/Gfif A TTORNE Y.

Patented Mar. 26, .1929.

arren {STATES CHARLES W.-I).AUGI-I$, OF PORTLAND, OREGON, ASSIGNOR TO DAUGHS SHIP COMPANY, A CORPOBATION OREGON.

CRANE.

' Applicat-ion. filed June 23, 1924, Se ria1 No. .721,"738.' Renewed January 25, 1929. i

This inventionv relates to cranes.

The general object'ofthe invention is to provide an improved crane which isadapted for use for general purposes such'as loading and unloading vessels, in railway work, as a lugging crane, as a quarry crane or in fact for any purposes where cranes are adapted to be operated.

One of the specific objects of my invention i is to provide a crane which is mounted for free rotary movement, wherein the prime moveroperating the crane is mounted to rotate with the crane and wherein a separate, relativelyv fixed, source of power is at all times in communication with the prime mover on the crane. v 7 Another object of my invention is to provide a rotary crane having a mast and a boom and having steam engine mounted to rotate-with thecra ne, wherein a separately mounted relatively fixed boiler is providprovide a rotary crane, including a boom,

with a plurality of supports for the boom so that the boom'can be arranged in two positions.

A furtherobject of the invention'is to provide an improved support for cranes whereby the operating mechanism may be supported without tipping or binding or'otherwise interfering with the'operation of the 'wcrane' Other objects of the invention will be apparent from the following description taken 2 is a side elevation of a crane embodying the features of my invention; Fig. 3 is a plan of the 'cran'e,the mast being shown in section with a part of the boom broken awa'yg-Fig. 4 is a plan-of the under portion I of the base plate; Fig.5 is aside elevation of the crane showing a portion of themast in connection with the accompanying draw 'ing's wherein Fig. 1 is a planiviewof a portion of a ship s owing a crane embodying v the features of my invention thereon; Fig.

ways- 27' extend transversely of the vessel and and boom; Fig. 6 is a section on line 66,

Fig. 3; Fig. 7-.is a perspective view of onehalf of the base plate; F1g..8'1s a perspective view showing a foundation standard; Fig.

'9 is a detail elevation; Fig. 10 is a sectional plate is also shown as provided with a pivot ally mounted boom 17. The crane is preferably associated with amast l8 and upon this mast'l show an auxiliary'inast 19 which is provided with suitable supporting means so that may rotate with the crane about the mast 18. 3 Arranged upon the base'plate to-rotate therewith,-are cable drums 20. and2l which,

are connected with load lifting and'booin hoisting cables22'and 23. The mast '18-may be stayed atthe top in any desired manner.

In the embodiment of myinvention shown it is connected by means of a cross piece 24 with a'supplemental mast 25.

My improved crane is adapted for gen, 'eral -use. It may be used as a wrecking crane, as a logging crane, as a quarry crane and asa general loading and lifting crane.

I now prefer, however, to use my'invention for the purpose of loading and unloading vessels.

7 g The great flexibility of operation of my crane together with its'rapidity of action, its economy of construction, and easy repair render it particularly, suitable for 'ing description Ii have'indicated it as applied to' a vessel I wish it to be understood that I'donot wish to be limited to this use.

Referring 'againto thedrawings I show a vided with an improved system of hatchways 27 which I have invented. These hatchextendalmost'across the upper deck,-so that practically all of the hold space can: be reached by mycrane which-i s shown at 28 in Fig.1. By referringto this figure itwil-lbe seen that the crane can ver readil 1 pick up articles on either side orfloth ofthe use with vessels and-although in the follow.-

o g l u vessel at 26. This vessel lsndicatedas pror vessel and can transport them to and from the hold and dock. v

The foundation standard 11, is shown in detail in Fig. 8. This foundation standard comprises a base portion having an upstanding web 31 thereon. The web 31 is shown as cut away at 32 and upon the cut away portion a bearing plate 33 for my improved rotary valve, to be presently described, is PIOVlClGCh. The upper portion of the web 31 is provided with a bearing block 34: which 1s adapted to receive and support a rack and roller path to be presently described.

I now prefer to provide tour of the foundation standards arranged at an angle of ,ed stcadyin 'ers 62'are adapted to engage the beveled 90 about the mast 18, as shown in Figs. 2 and 5. The inner portion of the foundation standard is preferably curved as at 36 so that it n'iay be fitted close to the mast 18.

Upon the bearing bloc-ks 341- 1 show a rack and roller path 10. This path is secured to the bearing block 3 1 by means of securing members such. as bolts 41. The rack and roller path is provided with a plane upper surface 4-2 and with a shoulder 43 which provi des a rabbetcd portion 14:, so that-the head of the bolt ll will not interfere with the rollers operating on the path 42. The inner periphery of the roller path is provided with teeth 46 as shown while therouter periphery of the roller path is preferably beveled, as at l? to engage steadying rollers to be presently described.

Mounted upon the rack and roller path I showa base plate 50. The base plate 50 is preferably constructed of two parts which may be suitably secured together. Each half or the base plateincludes a portion 51 having a semi-cylindrical upstanding collar 52 thereon. The two portions of the collar are provided with ,apertured flanges 53 which are adapted to receive fastening members such as bolts 551- tosecure the parts of the collar together. The under surface of the body portion 51 of the base plate is shown as provided with a plurality of strengthening ribs 55, as best shown in Fig. 4c. The

strengthening ribs 55 also provide sup-ports for shafts 56 of anti-friction rollers 57 In the drawings I show six of these anti-friction members, although it will be under any desired number may be employed. The V beveled surface 47 is preferably arranged The rollers 57 are at an angle of 45 in respect to the roller path 4 1 and the steadying rollers serve to prevent any tipping of the base plate or the boom-which might be occasioned'by the weight of the boom and load. The steadying rollers also serve'to hold the base plate in its proper position as the mast 18.

it rotates around Mounted upon each side o t' the base plate 50 I show a side housing 70. This side housing provides a support tor the cable drums 20 and 21 and also for the parts of the steam engine 15. The side housings are each preferably made as a one piece member and p when secured to the base plates serve; to rig idly connect the-two portions of the base plate. The steam engine 15 ispreferably of the double cylinder non-reversible type and includes cylinders 7 2 with the usual piston rods 73, wrist pins, 7 4., etc. Theengine is adapted to drive the gearing for rotating the drums as well as the sluing gear.

The engine as shown in Fig. 3 is connected by gears 74 and 7 5 with the drum 21. engine is also connected by means of a drive chain 7 6 wit-h the drum 20. A suitable clutch arrangement 77 may be combined with a diiit'erential 78 to drive a gear 79, as shown in Figs. 4: and 6.,The gear 79 is adapted to mesh with the. rack T6 on the roller path 40. The steam engine is adapted to be controlled by operating levers. 81 which may be mounted on a projecting per-' tion of the base plate 5Q. V

The engine, as well as the sluing. gear, per 'se, is old and well known in the art and is the standardtype now in use on locomotive crancs, and it is believed that a furtheir description of the construction and operation of the steam engine and the' sluing gear is unnecessary. The cable drums 20 and 21, which receive the load hoist cable and the boom hoist cable, may be each con structed as a double or two section drum in order to permit operating a bucket line when clam shell buckets are used or for controlling lifting magnets which may be used in dischargingor loading bulk cargo.

The drums 20 and 21 are shownjas pro vided with a pair of wide flanges 85 on each end thereof torreceiving brake bands. Thebrakes on the drum 21. maybecontrolled by an operating lever 86. while the The brakes on the drum 20 maybe controlled;

by the operating lever 8' 7. It. is important that'ample braking surface be provided so thatthe operator may have absolute and oer tain control of the boom. and load movement. M

The boom which is shown at 17 is provided with a member '90 at the top for engaging a block 91; which is in turn engaged by'the cable 23. The boom is also shown as provided with the usual attachments '92 for the load lifting cable. The inner end of the boom is shown as mounted on a shaft'9 1 which is removably arranged in a bracket 95 mounted on the base plate 50. It is frequently desirable that the inner end of the boom be mounted so that the boom may, in sluing, clear deck loads or other objects, in loading and unloading, and for this purpose I provide a supplemental boom support shown at 96. The supplemental boom support comprises spaced brackets 97 which are adapted to receive the shaft 9410f the boom.

The boom 17 may be supplied with a removable section so that its lengtlrmay be increased or-decreased when desired.

The crane described is adapted to be used in various locations and as shown it is inclicated as arranged about a ships mast 18. This mast may be a regular ships mast'located amidship or it may be on a: mast disposed atone end of the vessel, when the crane is used on very large vessels.

In order to support the boom I provide an auxiliary mast 19. This auxiliary mast Wl1 1Cl1 1S preferably of the lattice sleeve type comprises a plurality of vertical members 100 which are indicated as jointed by diag-v such a manner that a flexible connection with the base "plate is provided. 1 .This flexible connection absorbs any spring that might take place in the mast which would be; occasionedby reason .of 'any sudden heavy load lift;

At the top of the mast 18 the lattice sleeve is provided with a terminal member 110 which is shown as provided with an anti friction member 111 indicated as engaging the mast 18. This mounting provides a free bearing at the top for the lattice mast when it is slued back and forth. The member 110 may serveas a support for wire rope blocks 11 1 as shown in Fig. 2, which are adapted to receive the boom hoist cable.

In order that-a continuous flow of steam may be furnished from the ships boiler to the crane engine while the crane is sluing back and forth I provide an improved rotary steam valve. The crane described is adapted to swing around with a 360 degree swing. The valve embodying the features i of my invention is arranged around themast 18. The valve is supported on the bearing plates 33 which are arranged on the foundation standards 11. The valve comprises a The lattice sleeve mast is body portion 120 which is shown as provided with an eccentric recess 121 therein. With- 1n this eccentric recess I provide valve member 122 which is mounted for free mo vement in the recess 121. The inner'wall citthe member 120 is provided with piston ring grooves 123 for the reception of piston 1241 while the outer wall of the valve-l22 is provicledwvith piston ring grooves 125 and withpiston rings 126 fitted therein. Thegrooves in the piston rings are so placed that the outward thrust of the rings is against the outside wall on both the inside and the outside portions of the valve member 122.-

Inorder to secure the valveme mber 122 in place, I provide an annular closure member128. This closure member 128 is adaptedto it over the mast 18 and is secured to 'the member 120 by suitable fasteningmembore 130. y The valve 122 'is provided with spaceto receive steam packing-131 and the I closure 128 is provided with packing rings 132 which engage the packing 131 to force the latter to place. are shown as coacting with threaded members 133 which serveto force the packing rings downwardly against the packing to msure a tight oint. The valve member-122 is shown as provided with an annular hollow cavity 135 which extends entirely around. the

mg with a fixed steampipe' 136 which is ar ranged in the stationary valve member 120, In order that the engine 15 may be continuously in connnunication with the valve chamber 135 and consequently with the steam line 136' to the boiler 138 .(shown in dotted The packing rings 132' valve. This cavity is shown as communicat' I line position in Fig. 1) Iprovide acoupling xmjember shown 1 This coupling memberserves to connect the rotary valve 122 with a steam line l ll'which is in communication with the cylinders 7 2 of theengine 15 V as shown inFig. 5."

As the crane slues back and forth the valve 122 rotates within the valve member 120 and continuously supplies steam to the engine 15. In order that the thrust of this torque may be taken from the steam connection 140, I provide a pair of brackets 150 as shown in Fig. 6. These brackets are preferably arranged on diametrically op posed sides of the valve 122. andone end of each bracket is secured to the :valve while the other end of thebracket' may be secured in slots, in the base plate, thus taking off the strain from the steamconnection when the-crane slues back andforth.

From the foregoing description, it will be apparent that I have invented an improved crane which can be readily manufactured and installed and which is highly efficient and which permits economy in operation and great flexibility in action so that a load can be very quickly transferredfrom one place to another. I v i Having thus described my invention, I claim:

1. In a ships crane, a supporting deck, a

listed mast on the deck, a plurality of radially arranged foundation standards mounted on the deck, a base plate, means on said foundation standards for supporting said base plate, said base plate surrounding said mast, a crane structure on said base plate, means supported on the base plate coacting with means on the foundation standard to prevent the base plate from tilting. V

2. In combination with a deck having a mast stepped therein, a foundation standard inounted' independently of said mast on said deck and about said mast, a rack and roller path fixed upon said foundation standard .ab-out said mast, a base plate, a crane on said porting, the crane mechanism and having rollers thereon Which engage said roller path to rotatably support the base plate, a collar rigid With said base plate, said collar'sur roundingsaid mast and being disposed close to SfilCl'HltlSt, an auxiliar mast mounted on said collar and surroundlng said fixed mast.

i. In a ships hoistingtackle, a stationary fixed mast, a base mounted to rotate about said mast, an auxiliary mast mounted on said base and surrounding said first mast and adapted to. rotate independently ofthe first mast, said auxiliary mast comprising vertical members connected together, means to secure said members to said base, said means. including a slip joint whereby undue strains will cause the supplemental mast to move relative to the stationary mast ithout serious breakage of parts.

5.. In combination With a deck having a' fixed mast secured directly thereon, a foundation standard secured directly to said deck about said mast, a rack and roller path fixed uponsaid foundationstandard, abase plate,

said base plate having a crane structure thereon and he ing rollers thereon. ch engage said roller path to rotatably support the.

base plate, an auxiliary mast mounted on said baseplate and surrounding said fixed mast, and means supported on sa d base plate coacting with means on'said founda tion standards for preventingupivard move- H ment of said base plate, said means allowing free rotation of said base plate.

In combination with a deck having a mast stepped therein, a foundation standard secured to said deck about said mast, a rack and roller path fixed upon said foundation standard, a two part base plate, said base plate having rollers thereon which en ge said roller path and thereby support the base plate, a collar mounted on the base plate and surrounding said -mast, an auxiliaryv mast mounted on said collar,said auxiliary mast surrounding said fixed'mast and being freely rotatable,a pinion on saidbase plate engaging the rack on said rack and roller path andmeans mounted on the baseplate to turn said pinion and rotate said base plate.

In testimony whereof, I'hereunto aliix my s gnature. a

C ARLES, W. DAus s.

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