US1652048A

US1652048A - Adjustable bearing plate for wire-line pumping jacks

Info

Publication number: US1652048A
Application number: US175617A
Authority: US
Inventors: James R Robb
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-03-15
Filing date: 1927-03-15
Publication date: 1927-12-06
Anticipated expiration: 1944-12-06

Description

Patented Dec. 6,1927.

-UNITEDFST.

JAMES R. ROBE; or 'oIL'ron,-'oKLAHoMa.

ADJUSTABLE BEARING PLATE son wins-L NE ,PUMPiNG' JAcKs.

Application filed March 15, 1927. Seria1No. 175,617.

This invention relates to adjustable bearing plates for wire line pumping jacks.

An important object of the invention is to provide a dle forming the pivot for the pumping jack ,structure to be adjusted .toward or away from the well and likewise to be rotatably adjusted as to its ang1e,so that it will be arranged transversely of a radius intersecting the axis of the well, regardless of improper application of the which it is mounted. V i A still further object of the invention is to provide a device of this character'which may be relatively cheaply produced and is readily applied. V a i j i. These and other objects I attain by the construction shown in the accompanying drawings, wherein for the' purpose of illus-.

tration is shown a preferred embodiment of .my invention and wherein Figure 1 is a side elevation of a pumping jack mounted upon an adjustable bearing plate constructed in accordance. with my 111- vention;

Figure 2 is a plan view of the bearing plate; 7 j V Figure3 is a section on the line 3-3 of Figure 2; i

Figure 4 is a section on the line eP- of tending transversely of the general plane of exerts its pull, while thelugs are relative- Figure 2..

Referring now more particularly to the drawings, the numeral 10 generally designates a wire line pumping jack and 11 the saddle thereof, which comprises a shaft exthe jack structure. In accordancewith my invention, these saddles are usually pivoted uponbase castings (not herein illustrated) 'which are mounted upon sills 12 arranged adjacent to and extending radially from the well casing 13. V

,In accordance with my invention, I provide a cast base 14, at present illustrated as provided with apertured ears 15 through which securing elements may be extended to attach the same to the sills 12; This base is arranged with its longitudinal axis approximately transverse to a radius of the well casing 13 and is provided centrally with a longitudinally extending slot 16. Adjacent each end, the base has formed therethrough a longitudinally extending slot 17, the lower end of which opens into a recess 18, the upper wall of whichis provided with transverse sorrufitetionsjfii Arranged with n. eash re:

device which will permit the sad-- base proper to the sills 'upon walls of the recess and has its upper face corrugated for coaction with the corruga-- tions 19 of the upper recess w all.. These plates 20 constitute washer plates and are boss is a block 20, which fits between the side apertured for the passage of bolts 21 and,

provided withrecesses 22 in their lower faces receiving and fitting the heads of the bolts to prevent rotation thereof. V

' The upper surface of p v thebase is flat and has seated thereon a saddle casting 23,which hasa lower surface flat, with the exception of a centrally located circular lug 24:, the diameter of which is the same as the width of the slot 16 of the base. This jlug extends into the base and serves not only as a pivot about which the saddle casting may be rotated, but i also an additional function, which will'hereinafter become apparent. The ends of the saddle casting 23 have arcuate slots 25 curved with the lug 24 as a center, and ofasize to p permit passage of-the securingelements 21.

The upper face of the casting 23 adjacent the arcuate slots is provided with corrugations 26 transverseto the slots 25 and adapted for coaction with corrugations upon the under surface of washer plates 27through which" the securing elements 21 likewise extend and against which the nuts 28 of the securing elements abut.

Immediately inwardly of the slots, the saddle casting is provided with opposed pairs of transversely spac edlugs 29 and 30, the

lugs 29 being relatively large and disposed at that's'ide of the saddle casting from which the wire line 31 of'the pumping apparatus which engages the corresponding end of the,

saddle'and serves to prevent movement thereof longitudinally of the saddle casting. Be-

tween the pairs of

lugs

29 and 30, the upper face of the saddle casting is grooved to re'-' ceive and fit the saddle, as at 32.

In applying thebase plate, it is applied to the sills 12 with its center 'as nearly as possible in a direct line between the pump rods of thewell casing 13 and the point from which the wire line 31 is operated. The saddle casting 23is then seated thereon and the securing elements 21 left looseuntil the jack has been positioned. By placing the line'under strain which tends to lift the pump rods, this jack will naturally assume a position where no side strains are applied thereto. In order to accomplish this, it may be necessary that the saddle casting rotate about itslug 2 .1: as a pivot and also shift longitudinally with respect to the base casting. Just as soon as the jack has assumed its proper position, the securing elements may be tightened and the saddle casting will be firmly held against displacement. The lug 24, during operation of the pump, serves to prevent the strain exerted by the wire line from being placed directly against the securing elements 21. The larger lugs 29 of each pair are preferably each formed with a lubricant receiving pocket 33 communicating wtn the saddle confronting face of the lug. These pockets may be provided with hinged covers 345. v 7

Since the cointtructiou hereinhefore set forth is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myse f to such specific structure except as hereinafter claimed.

I claim 1. In a saddle mounting for the wire line pumping jacks of oil well pumps, a base adapted to be secured to'a suitable support and having a longitudinally extending slot, a saddle casting having a circular lug lit ting in the slot, the base having adjacent each end thereof a longitudinally extending slot, the saddle casting having adjacent each end thereof an arcuate slot and a securing element extending through each arcuate slot and the corresponding longitudinal slot of the base for securing saidsaddle casting in adjusted position.

2. In a saddle mounting for the wire line pumping jacks of oil well pumps, :1 base adapted to be secured to a suitable support and having a longitudinally extending slot, a saddle casting having a circular lug litting in the slot, the base having adjacent each endthereof a longitudinally extendingslot, the saddle casting having adjacent each end thereof an arcuate slot, a securing element extending through each arcuate slot and the corresponding longitudinal slot of the base for securing said saddle casting in adjusted position, remote faces of the base and saddle casting having adjacent said slots corrugations extending transversely of the slot and washer plates upon the securing elements having corrugations for coaction with the corrugations of the base and saddle casting.

3. In a saddle mounting for the Wire line pumping jacks of oil Well pumps, :1 base adapted to be secured to a suitable support and having a longitudinally extending slot, a saddle casting having a circular lug fitting in the slot, the base having adjacent each end thereof a longitudinally extending slot, the saddle casting having adjacent: each end thereof an arcuate slot, :1 securing element extending through each arcuate slot and the corresponding longitudinal slot of the base for securing said saddle casting in adjusted position, the upper face of the saddle casting having a longitudinall extending groove for the reception of tie saddle and lugs extending upwardly from the face of the saddle casting at opposite sides of the ends of said groove.

4:. In a saddle mountin for the Wire line pumping jacks of oil well pu1n)s,'a base adapted to be secured to a suitab e support and having a longitudinally extending slot, a saddle casting having a circular lug tittlng in theslot, the base having adjacent each end 1 thereof a longitudinally extending slot, the

saddle casting having adjacent each end thereof an arcuate slot, asecuring element extending through each arcuate slot and the corresponding longitudinal slot of the base for securing said saddle casting in adj usted position, the upper face of the saddle asting having a longitudinally extendin" groove for the reception of the saddle an lugs extending upwardly from the face of the saddle casting at opposite sides of the ends of said groove, the faces of said lugs adjacent the ends of the saddle casting being connected by a Web.

5. Ina saddle mounting for the wire line pumping acks of oil well pumps, a base adapted to be secured to a suitable support and having a longitudinally extending slot, a saddle casting having a circular lug fitting in theslot, the base having adjacenteach end thereof a longitudinally extending slot, the

saddle casting having adjacent each end thereof an arcuate slot, a securing element extending through each arcuate slot and'the corresponding longitudinal slot of the base for securing said saddle casting in adjusted position, the upper face of the saddle casting ha vmg a longitudinally extendinn' groove for the reception of the saddle and ugs extending upwardly from the face of the saddle casting at opposite sides of the ends of said groove, the lugs at one side of the groove being relatively large and formed with lubricant reservoirs.

In testimony whereof I hercuntoallix my signature.

JAMES R. ROI-3B.