US1400408A - Derrick-fitting - Google Patents

Description

R. R. BLUSS.

DERRICK FITTING.

APPLICAHON men 001, 2, 1920.

Patented Dec. 13, 1921.

BSHEETS SHEET I.

ci rm R. R. BLUSS.

DERRICK FITTING.

APPLICAHON FILE!) 0c|'.2.1920

Patented Dec. 13, 1921.

3 SHEETSSHEET 2,

R. H BLOSS.

DERRICK FITTING.

AK'PLICAHUN HLEU GUI 2- I920. 1,400,40 Patented 1)@@.13,1921.

3 SHEETS -SHEET 3.

isra's' PATENT OFFICE.

momma surnames, or ranxnnsnnae, wns'r vmernui, ASSIGNOR THE PABKERSBURG BIG a'nnnn COMPANY, OF PARKERSBURG, WEST VIRGINIA, A.

CORPORATION OF WEST VIRGINIA.

DERRICK-FITTING.

To all whom it may concern:

Be it known that I, RICHARD R. BLoss, a

citizen of the United States, residing at Parkersbnrg, in the county of Wood and State of 'West Vir 'nia, have invented certain new and useful Improvements in Derrick-Fittings, of which the following is a specification.

This invention relates to derrick fittings, and it comprises a substantially cylindrical body portion adaptedto receive an upper and lower le section, means for securm .the' horizonta girthsto said fitting, an means for securing the diagonal braces thereto, said means comprising eccentric blocks having openings therein for the re-' ception of the ends of the braces whereby the braces may be tightened by the operation-of said eccentrics.

In the construction and use of derrick fittings, there are certain essentials which must be considered in order to produce a fitting that will meet with the approval of the trade.

A derrick fitting must be simple to erect and it must be so arranged that the rigbuilder is not depended upon to et the It is, therefore, a visable that the use of adjustable turn buckles and similar structures be eliminated and that the various parts of'the derrick be cut to the proper length with the holes properly laced to insure a etrical structure. here the adjustment of the parts is left to the rig builder, it frequently happens that the derrick is unsymmetrical when assembled and therefore weak.

It is also'desirable to provide a derrick fitting which permits speed in erecting and disassembling. The use of bolts passing through the leg sections, girths or braces which have to be entirely removed to disassemble the derrick, is objectionable because of the time consumed in such operation.

In the present invention, I have provided a derrick fitting wherein the ran e of adjustment of the diagonal braces 1s limitedand wherein all parts may be cut the proper size and openings proper y placed to insure a symmetrical construction when the derrick is assembled. v

I have further provided a derrick fittin wherein no bolts have to be entirely remove to disassemble the derrick. In one form of the'invention, the leg sections and girths are Specification of Letters Patent. Patented D c, 13 1921. Application filed October 2, 1920. Serial No. 414,241.

received in sockets and no bolts whatever are used. In other forms of the invention, wherein bolts and nuts are employed, they are so arranged that the derrick may be disassembled by merely loosening the nuts.

In the accompanying drawings, I have shown several advantageous embodiments of the invention. In this showing,

Fig. 5 is a side elevation of another 'form' of the invention. 7

Fig. 6 is a vertical sectional view throu h the body portion of the fitting showing t e 16%S60t10115 in osition.

ig. 7 is a orizontel sectional view on the'hne 7-7 of Fi 5.

Fig. 8 is a side e evation of another form of the invention.

Fig. 9 is a similar view at right angles thereto.

Fig. 10 is a horizontal sectional view on the l1ne-1O-1O of Fig. 8.

Fig. 11 is a detail perspective view of the ody portion of the fitting showing the means for retaining the leg sections in position, and

Fig. 12 is a sectional view on the line 12-12 of Fig. 9.

Referring to Figs. l-to 4 of the drawings, the reference numeral 1 desi ates the body portion of the fitting which is adapted to receive u per and lower leg sections 2 and'3. As 3 own, the cylindrical section 1 is provided w1th a longitudinal slit and pairs of ears 4 and 5 are arranged on each side of the opening. These ears are provided with almed openings adapted to receive a bolt 6 to permit tightenin and loosening of the body portion when the leg sections are being put in position or removed.

, The bolts are provided with nuts 7 as shown.

other and these plates are provided 0 for the recep v the fittjngis not portions of the plates are provided with o enings adapted to recelve the upper ends diagonal braces 12. As-shown, the ends of the braces are offset asst 13 and passed 6 through the openings. ,The ofi'set end of the brace is 'provided'with openings for the reception of a cotter-pin 14.- whereby the end of the brace is secured in position.

The upper portions of the plates 8 and 9 10 are provided with means for receiving the lower ends of the diagonal braces extending to the next fittings and means are provide 'for adjustingthe braces whereby the derrick ma be first assembled and thebraces then 1 tig tened to secure all the parts in proper position. As stated, the adjustment is within-a limited range and the parts are so constructed that when "all'the adjustments haye been made, a symmetrical construction will be obtained; As shown, the platesare provided with circular openings adapted to receive blocks 15. 'These blocks are provided with operatin handles l6whereby they may be rotated. he end. 17 of thehandle is offset and adapted to lie adjacent the brace when-in assembled. position. A rm 18 is.

arranged on the brace and is adapte to be slipped over the offset end-of thenhandle to I retain the parts in {pro or position. Each of the blocks is provi ed with an eecen trically arranged openingada ted to receive the end of the brace, the en of the brace being arranged at rightangles. to the body portion as at'19. A cotter pin 20 is arranged in an, opening in the end 190i the brace to"v position. Referring to Fig. .3

retain it in I p of the drawings, it will be a parent that when the handle 16 is revolve side of the center thereby loosening the brace .and permitting removal ofthe various parts.

' Referringto Figs. 5 to 7 of the'drawings,

the construction therein} shown is' substan-g tially the same as theconstruction'heretofore described,-except thatthe body portion]. off r'ovided-with the longin this form of the inven :tion, the leg sections 2 and? are adapted to be slid in; place and retained by the weight tu dinal opening.

of the other portions of the derrick. {As

.shown, the body portion is provided with a centrally arranged. transverse late 21. :The

' fitting rests upon the lower e'g section 3'- through the provision of; plate,21'and.the

upper le section restsTupon the fitting. Referr i ng to Figs. 8 to 12 of the drawings,

' I have therein shown a further modification of the means for securing the 1e and tbs in position. As shown, thebo y portion 1 is provided with .the circumferential pro jection 22 on which the upper leg section 2 rests. Thelower leg section supports the fitting andthe upper leg section through the provision .of the projection 22 is supported through an arc of degrees, the eccentric opening 1n:v 40 the block 15wi11 be disposed on the opposite on the fitting. The 1e sections are secured in-place by means of -bolts 23 arranged in openings in, the body-portion, The body portion is provided with flattened portions 24 havin openings 25 'throughwhich the ends of the U-bolt passes. =Nuts 26 are arranged on the ends of the bolts.

plates 8 and 9. After the girth 'has' b'een placed in position between t e two lugs 27 and in the depression 28, it is retained by means of a U-bolt 30, the ends of which pass through openings inthe plates and are provided with nuts 31. 3

In the useof theform of the inventionv shown Figs. lvto 4 of the drawings, the leg sections may be: placed in the body portion of.the'fittmgby loosening nuts 'i'. It

is importantto note that it is unnecessary "to remove-the; bolts: (j when the leg sections are to beplaced .in' position or removed. By

'merely'loosening' the nuts, the'i'bbdy portion maybe loosened from the legs to permit re.- moval. The -girths 11 are inserted in the sockets 10 and theends ofthe braces are secured in pbsition. 'llheliminovableiend 13 n of the braceisffirst secured in positioii and the'other end 19 isthen pl aced 'in -the=opening in the' circular'. block 15,"iithe circular block being ositioned in the oppositefp'osition to that sh handle-16 to tight en'the' parts and the ring 18 1s slipped into position.

;Figs. 5fto, 7 offthe. drawings, there are no nuts-or bolts 1 .to' be loosened or-removed .when'the derrick is erected oifidisessembled. The derrick is, of course, assembled from 1 the ground upwardlyanddisassembled from the top. a It willbe apparent thatthe u per leg section 2 may be first removed an the gwn i'n Fig. 3 offthedrawnigs. After the endsjof the braces'shave been" secured, the blockis rotated by meansot braces disconnected'. After the braces have been (disconnected, the girths' may be 'removed. from the sockets 10 and the fitting removed from the lower leg section.

In? the form of the invention shown in .Figs.,.8.to 12;of the drawings, the girths may be removed by loosening nuts 31 on 'U-bolts 30 and the leg' sections ma .be removed by loosening -nute26 on U- olts 23.

In'eithercase, it is unnecessary to entirely remove the nuts and bolts, as the bolts do not pass throughthe 1e a "As stated, the provision of the slight 'ad-' or girths.

j ustment in the diagonal braces ermits the derrickto ,be quickly. assemble and then,

tightened. The adjustment of the assembled parts does not, in any way, depend upon the rig builder and a symmetrical structure is always obtained. The parts being properly cut in manufacture and the openings properly placed, it is impossible for the derrick rigger to assemble the derrick to produce an unsymmetrical structure.

It is to be understood that while I have described the preferred embodiments of my invention, various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. A derrick fitting comprising a body portion including a substantially cylindrical portion adapted to receive upper and lower le sections, said body portion being provide with an opening, a rotatable member mounted in said opening and provided with an eccentric opening for the reception of an end of a brace member, and means connected between said rotatable member and the brace to prevent rotation of said rotatable member.

2. A derrick fitting comprising a body "vent rotation of said rotatable member.

3. A derrick fitting comprising a body portion including a cylindrical portion adapted to receive the ends of upper and lower leg sections, said body portion being provided with an opening, a rotatable member mounted in said opening and provided with an eccentric opening to receive an end of a brace member, a handle carried by said rotatable member and a ring slidable upon the brace and adapted to receive the end of said handle to prevent rotation of said rotatable member.

In testimony whereof I affix my signature in presence of two witnesses.

RICHARD RALPH BLOSS.

Witnesses:

Howard) S. DrrsoH, HERBERT L. Pos'rmwnrr.

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