US1838788A - Jack clip - Google Patents

Description

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Dec. 29, l19.31. 1 A. RAwsoN 1,838,788

JACK CLIP Filed July 20, 1929 3.7 H'TTG/QMSK I vide a device for "5 a derrick whichwlflil more rigid corner than.

Patented Dec. Y2.9, 1931 l UNITED STA LESLIE A. Rawson', or Los Aire-Enns, Crimson-nim nssieiven rre inrseo Bannion 'af mientas, CaLrFonNrnA eonronerion or CALI- EQUIPMENT COMPANY, or Les. ronnie Application filed July 20,

My invention relates. to a derrick construction and relates particularly to a novel corner construction for the base ef ay derricl( A derrick is used' in the well drilling industry for handling the apparatus used in drilling the well. The derricl structure and the drilling apparatus. are supported `by base corners of the derrick Vwhich are therebyv subjected to` considerable stress Vas the .weight which theysupport amountsV to many tons.

Because of the great weight which is supported, it is quite a common occurrence for the foundation of' one `orjmore corners. of the derrick to settle and tlirowthederrick out of vertical alignment.. sary teV jack up the low corner and place shims thereunder in ord-er torealign the derri-clr. 1 L

It is object of my invention to` provide a convenienty means of attaching a lifting jack tothe corner ci the derrickso as: to allow the corner to be lifted.. Y

Itis another object of nay-invention to prouse on the basecorners of ferm a stronger and the corners' now used. It. is customary to use a plurality of 'parts to secure the'various derriclr members, such ff order to better as dierrick l'egsybase channels, reinforcing members, etc., and sincethe derrio'lr members meet at various angles and the base corner parts must be ef large sizein order to withstand the stresses to.. which they are subjected, this makes a very complicated construction. Y

It is a further object of my invention to provide a base corner which will be of simple construction and which will provide means for readily ,securing the various derrick memvbers thereto. j

`The construction ofa derrick is. such that the sides of the base channels are vertical while the derrick legs are inclined sor as to converge toward the top of the derrick. In lit the derrick members,y itis desirable that the' portions of the base corners secured tothe base channel'sbe constructed vertically and the portions secured te the derrick legs be inclined parallel to the derrick legs. In the base corners of my inven- This makes it neces-l JACK CLIP 1929; Serial N0. 379,806

tion have made it an object` to provide for this construction. Itis also. an object of my invention to pro-Vt vide a means of easily attaching the derrick legs. to the baseV corners so as to readily sup.- pcrt the weight thereof. Y 1

urther objects ot myinvention will appear hereinafter.. Y the accompanying I have shown a device of my invention: Fig. l is aview showing the appearance of my device. Y Y

Fig. 2 is` a vertical view from above a derricli showing the device in position on. the derrick. ,l

Figi 3, is a sectional View 3&3 of Fig. 2'. Fig. 4 is a side ment of the parts,

Referringto the drawings, the base ofv a dei-rick is compos-ed of vertical-sided base cl'iannels .l1 which form a rectangle 'and which are ,reinforced by reinforcing channels` l2. The base channels ll are attachedv at each corner of thederrick to. a base, corner 14 as are also an inclined derriclr leg l5 and a diagonal reinforcing member 16,l the reinforcin member 16 being connected to diagimall-y opposite` corners of the Vderrick so asto bracci the derrick. A

The base corner 14 of invention con-- ists (if a horizontal wall 17 which has. a lower Lace taken on the line view showingthei arrangemtegral therewith are two intersecting upwardly-.eXtending.'` walls 23 which. form a right angle having an apex surfaces oithe Y are constructe parallel to the.- langeslo-f the inclined derrick lieg 15 sogas toform` suitableattaching surfaces for the derrick` leg 15 which1 is secured thereto by bolts 25. The extremities oi the walls 23 farthestvi from they apex 24 are constructed vertically and. term attaching surfaces for attaching the vertical sides ofi the base channels ll' which arey se cured theretol by bolts 28. I thus provide in drawings, in whichl my base corner an inclined surface for attaching the inclined derrick leg 15 and a vertical surface for attaching the vertical-sided base channels 11.

On the external faces of the walls 23, between the apex 24 and the point of attach ment of the base channels l1, are projections 30 which provide projecting faces 81 that are perpendicularl to the airis of the diagonal reinforcing member 16. Formed in the projections 30 are horizontal openings 32, in one of which is positioned a threaded end 33 of the reinforcing member 16. A tightening nut 34 on the threaded end 33 of the reinforcing member 16 is tightened against the faces 3l of one of the projections SO, which face forms a thrust surface therefor. J@attaching means is thus provided for attaching the diagonal reinforcing member 16 to my base corner 14.

As best shown in Fig. 3, I provide, in the upper inclined face of the horizontal wall 17 and between the walls 23, a supporting surface or concavity 36 for supporting a convex head 37 of an adjusting jack 38 which jack is secured to the lower end of the derrick leg 15 and provides a means of adjusting the vertical position thereof. rEhe concavity 36 thus forms la support for th-e derrick leg 15.

Extending from the apex 24 is a horizontal lifting member or lifting arm 4() which is formed integrally with the walls Q3. The arm 40 is provided with integrally-formed upper and lower reinforcing webs 41 and 42 and with a lower horizont-al face 43 which provides a surface for contacting the head of a lifting jack which may be placed thereunder as shown by the dotted lines 44 in Fig. 3. By forming the arm 40 integrally with the base corner 14 and providing it with reinforcing webs 41 and 42, I provide it with suiiicient strength to support the weight of the derrick leg 15.

rEhe base corner of my invention thus forms a stronger, more rigid and more accessible corner than the type now used and provides a means for readily attaching a lifting jack thereto.

I claim as my invention:

1. In a derrick, the combination of: an integrally-formed base corner; a lifting member integral with said base corner; a derriclr leg attached to and supported by said base corner; and a base channel attached to said base corner.

2. In a derrick, the combination of: an integrally-formed base corner; a lifting member integral with said base corner; a derrick leg attached to and supported by said base corner; a base channel attached to said base corner; and a reinforcing member attached to said base corner.

3. In a derriclr, the combination of: an integrally-formed base corner; a lifting arm extending from said base corner and integral therewith; a derrick leg attached to and supported by said base corner; and a base channel attached to said base corner.

In a derriclr, the combination of: an integrally-formed base corner; a lifting arm extending from said base corner and integral therewith; a derriclr leg attached to and supported by said base corner; a base channel attached to said base corner; and a. reinforcing member attached to Said base corner between the attachment of said base corner to said derrick leg and the attachment of said base corner to said base channel.

5. As an article of manufacture, an integrally-formed base corner for a derriclr, comprising: a lifting member integral with said base corner; an attaching surface on said base corner adapted to lit a surface of a derrick leg; and an attaching surface on said base corner adapted to fit a surface of a base channel.

6. is an article of manufacture, an inte* grally-formed base corner for a derrick, comprising: a lifting arm extending from and integral with said base corner; an attaching surface on said base corner adapted to fit a surface of'a derricl; leg; and an attaching surface on said base corner adapted to fit a surface of a base channel.

'7. its an article of manufacture, an integrally-formed base corner for a derrick, comprising: a lifting member integral with said base corner; an inclined attaching surface on said base corner adapted to fit an in clin-ed surface of a derrick leg; and an attaching surface on said base corner adapted to tit a surface of a base channel.

8. As an article of manufacture, an integrally-formed base corner for a derrick, comprising: a lifting member integral with said base corner; an attaching surface on said base corner adapted to fit a surface of a derrick leg; and a vertical attaching surface on said base corner adapted to fit a vertical Surface of a base channel.

9. As an article of manufacture, an integrally-formed base corner for a derrick, comprising: a lifting member integral with said base corner; an attaching surface on said base corner adapted to fit a surface of a derrick leg; an attaching surface on said base corner adapted to fit a surface of a base channel; and an attaching means on said base corner adapted for attaching a reinforcing member.

10. As an article of manufacture, an integrally-formed base corner for a derrick, comprising: a lifting member integral with said base corner; an attaching surface on said base corner adapted to fit a surface of a derrick leg; an attaching surface on said base corner adapted to fit a surface of a base channel; and a supporting surface on said base corner for supporting said derrich leg.

11. As an article of manufacture, an inlof tegrally-formed base corner for a derrick, comprising: a horizontal wall; an upper surface on said wall adapted to support a derrick leg; an upwardly-extending wall'above said horizontal wall and integral therewith; an attaching surface on said upwardly-'extending wall adapted to fit a surface of said derrick leg; an attaching surface on saidupwardly-extending wall adapted to fit a surace of a base channel; and a lifting member on said upwardly-extending Wall and integral therewith.

grally-formed base corner for a derrick, comprising: a horizontal wall; an upper surface on said wall adapted to support a derrick leg; an upwardly-extending wall above said horizontal wall and integral therewith; an attaching surface on said upwardly-extending wall adapted to fit a surface of said derrick leg; an attaching surface on said upwardly-extending wall adapt-ed to fit a surface of a base channel; and a lifting arm extending fromv said upwardly-extending wall and integral therewith.

13. As an article of manufacture, an inte- Y grally-formed base corner for a derrick, comprising: a horizontal wall; an upper surface on said wall adapted to support a derrick leg; upwardly-extending lmutually-angled walls above said horizontal wall and integral therewith; an attaching surface on said upwardly-entending walls adapted to fit a surface of said derrick leg; an attaching surface on said vupwardly-extending walls adapted to fit a surface of a base channel; and a lifting member on saidV upwardly-extending walls and integral therewith.

14. As an article of manufacture, an integrally-formed base corner, comprising: a horizontal wall; a groove in the upper surface of said'wall adapted toreceive a derrick leg; an upper surface on said wall adapted to support an auxiliary derrick leg; upwardly-extending mutually-angled walls above said horizontal wall and integral therewith; an attaching' surface on ly-eXtending walls adapted to lit a surface of said derrick leg; an attaching surface on said upwardly-extending walls adapted to t a surface of a base channel; and a lifting member on said upwardly-extending walls and integral therewith. Y

15. In a derrick, the combination of: an

' integrally-formed base corner; a lifting member integral with said base corner; a derrick leg attached to and supported by said base corner; a base channel attached to said base corner; an adjustable elevating means supported by said basel corner; and an auxiliary derrick leg supported by said elevating means.

In a derrick, thecombination of: an integrally-formed base corner; a lifting meniber integral with said base corner; a derrick leg attached to and s an article of manufacture, an inte- Y corner; a base channel attached to said base said base corner between the attachment of said base corner to said derrick leg and the attachment of said base corner to said base channel; an adjustable elevating means supported by said base corner; and an auxiliary derrick leg supported by said elevating means.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 8th day of July, 1929.

LESLIE A. RAWSON.

said upward- Y supported by said base

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