US1561387A - Safety sucker-rod elevator and wrench combined - Google Patents

Description

W. N. WHITE ET AL SAFETY SUCKER ROD ELEVATOR AND WRENCH COMBINED Filed June 25, 1923 2 Sheets-Sheet 1 f r J/J' M E J r Z2 a 5 a /J /5 J I W11 W12? 1?. fiver/add to 4 w. N. WHITE ET AL- SAFETY sucmaa ROD ELEVATOR 1m]:- wapuca coian png,

Filed June 25. 1923, f; gjgsnep sngg Patented Nov. 10, 1925.

UNITED STATES PATENT OFFICE.

SAFETY STICKER-ROD ELEVATOR AND WRENCH COMBINED.

Application filed June 25, 1923. Serial No. 647,678.

To all whom it may concern:

Be it known that we, WILL N. VVHITE and ROY OVERFIELD, citizens of the United States, residing at Independence, in the county of Montgomery and State of Kansas, have invented a new and useful Safety Sucker-Rod Elevator and Wrench Oombined, of which the following is a specification.

The present invention relates to a sucker rod elevator and aims to provide novel means for elevating a sucker rod on removing the same from a well, the elevator being of a construction to hold the sucker rod in an elevated position while the uppermost section thereof is being disconnected.

Another object of the invention is to provide means for locking the elevator to the sucker rod, eliminating any possibility of the elevator slipping or losing its hold on the sucker rod while in operation.

A still further object of the invention is the provision of means to secure and hold the sucker rod against rotary movement while a section thereof is being unscrewed and disconnected.

Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the inven tion.

Referring to the drawings:

Figure 1 is a front elevational view disclosing the elevator as applied to a sucker rod.

Figure 2 is a side elevational view thereof.

Figure 3 is a side elevational view of the elevator, the lower portion thereof being broken away to illustrate the locking member.

Figure 4 is a vertical sectional view through the elevator.

Figure 5 is a top plan view thereof.

Figure 6 is a sectional view taken on line 66 of Figure 1. Figure 7 is a bottom plan view of the elevator, the bottom plate being removed.

Referring to the drawings in detail, the elevator includes a substantially U-shaped body portion 5 that is formed with an inwardly extended flange 6 disposed adjacent to the bottom of the body portion, the under portion of the bottom being cut away as at 7 to provide a clearance for the locking jaws 8 and 8 that are positioned therein.

These jaws are curved and pivotallyconnected at 9, whereupon one jaw may move with respect to the other to lock an article thereto. As shown, the width of the cut out portion 7 is greater than the combined widths of the jaws 8 and 8', so that the jaw 8 may be moved within the confines of the cut out portion to allow the device to be positioned over a rod to be elevated.

Cooperating with the jaw 8 is a locking bar 10 which is adapted to move between one wall of the cut out portion 7 and the jaw 8 to prevent movement of the jaw 8 after the jaw 8 has been moved to its locking position, the inner end of the locking bar 10 being inclined at 11 to permit the same to move over the inner curved edge of the jaw 8 to operate the jaw.

In order that the bar 10 will be held in its locked or unlocked positions, depressions 12 are formed in the locking bar, which depressions receive the spring pressed ball 13 that moves in the opening 14 formed in the body portion of the elevator.

Formed at one end of the locking bar 10 is an enlargement 15 affording means whereby an operator may readily and easily move the locking bar to its active or inactive position. It might be further stated that the forward Walls of the cut out portion 7 are formed with inwardly extended flanges 16 designed to contact with the forward inclined edges 17 of the jaws 8 and 8 to restrict movement of the jaws towards each other.

A removable plate 18 provides the bottom of the body portion and acts as a support on which the jaws 8 and 8 rest while they are in operation and are supporting the weight of a sucker rod.

A plate 19 forms the upper wall of the body and is secured thereto, the plate being formed with a rectangular slotted portion 21 to be fitted over the squared portion of a sucker rod when the elevator is being positioned for lifting, so that that section of the sucker rod being removed or disconnected will be permitted to rotate independently of the section of the sucker rod remaining in the well.

Extending laterally from the body portion are the arms 22 that provide means whereby the lifting member 23 may be connected to the elevator, the ends of the lifting member 23 being shown as bent around the arms 22, while the intermediate portion thereof is curved to receive a suitable hoistinghook not shown.

In the use of the device, an elevator as described, is positioned on that portion of a sucker rod extending above the upper surface of the well in a manner as shown by Figure 1 of the drawings. The jaws are now operated to engage the rod directly under the enlargement formed on the sucker rod and which in the present showing is indicated at A. The body portion is now ele vated by a suitable means not shown until the lower end of the section of the sucker rod at the upper end of the sucker rod is exposed above the well.

WVith the sucker rod in this position, another elevator of a construction as shown and described is positioned under the enlargement of the adjacent lower section to hold the sucker rod in its elevated position. The elevator through which the initial lifting movement was accomplished is now removed, and the uppermost sucker rod section disconnected. This operation is repeated until the entire length of sucker rod has been removed.

We claim 1. In a device of the character described, a body portion having a cut out portion formed in one wall, a plate removably secured to the body portion, a plate secured to the upper end of the body portion, movable aws supported within the body portion, means forming a part of the body portion and adapted to engage the jaws to restrict; inward movement of the jaws, and a locking member adapted to engage one of the jaws to lock tl e jaws against n'iovement.

2. In a device of the character described, a body portion having a cut out portion formed in one of the side faces thereof, to receive a sucker rod, pivoted jaws mounted within the body portion, a locking bar having an inclined end portion adapted to permit the locking bar to move over the jaw associated therewith, and means for holding the locking bar against reverse movement.

In testimony that we claim the foregoing as our own, we have hereto affixed our sig natures.

WILL N. WHITE. BOY OVERFIELD.

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