US1522521A - Drilling apparatus - Google Patents

Description

Jan, 13. 1925.

F. R. JACK DRILLING APPARATUS Filed Aug. 21, 1922 Patented Jan. 13, 1925.

UNITED STATES FRANK R. JACK, OF GARNETT, KANSAS.

DRILLING APPARATUS.

Application filed August 21, 1922.

To all whom it may concern:

Be it known that I, FRANK R. JACK, a citizen of the United States, residing at Garnett, in the county of Anderson and State of Kansas, have invented certain new and useful Improvements in a Drilling Apparatus, of which the following is a specification.

This invention has relation to certain new and useful improvements in drilling apparatus and relates more particularly to well drills.

An object of the invention resides in the provision of a resilient mounting for the temper screw of a well drilling apparatus, so as to automatically raise the temper screw when released after being lowered or screwed out.

A further object of the invention resides in the provision of a resilient mounting of the character stated which will provide 7 for automatic raising of the temper screw with the saving of labor and strain upon the apparatus and without materially increasing the cost of the drilling apparatus.

The invention has for a still further object the provision of a resilient mounting of the character stated for a temper screw of a drilling apparatus, which will be composed of the minimum number of parts of simple construction and arrange ment and which will be highly efficient in use when incorporated in the types of well drilling apparatus now in general use.

Still another object of the invention resides in the provision of a temper screw mounting of the character stated which will be placed under strain as the temper screw is screwed out and which will act automatically to lift the temper screw when released, together with the cable clamps, after the temper screw has been wrung and the cable clamps released, thereby making it possible to dispense with the services of at least one workman heretofore required and also reducing the load on the other workman or operator holding the clamps and relieving the temper screw of a considerable amount of the strain to which it has been heretofore subjected and permitting the temper screw to be raised in one-third of the time required by the present method employed.

WVith the foregoing and other objects which will appear as the description pro- Serial No. 583,242.

ceeds, the invention consists in the novel construction, combination and arrangement of co-operating elements as hereinafter more specifically set forth, claimed and shown in the accompanying drawings forming a part of the present application and in which:

Fig. l is a plan vieW of the mounting forming the subject matter of this invention.

Fig. 2 is a side elevation of the parts shown in Fig. 1.

Fig. 8 is a front elevation of the parts shown in Figs. 1 and 2.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views, 1 indicates the Samson post or walking beam of a drilling apparatus, 2 he temper screw and 3 the casing for the temper screw. The clamps 4 are also shown in the drawings so that parties familiar with such apparatus may understand clearly the application of the present invention. The temper screw 2 and the casing 3 therefore are of conventional form and these parts are mounted on the slotted end of the beam 1 by the T-shaped supporting bracket 5, the center member of which depends through the slot .6 in the end of the beam 1, as shown clearly in Figs. 1 and 3. It will be seen by referring to Fig. 3 that the depending center member of the T-shaped supporting bracket 5 extends into the upper end of the casing 3. This view also discloses, together with Fig. 2, the oppositely directed outstanding arms 7 carried by the upper portion of the casing 3. Opposite ends of the cable 8 are connected with the arms 7, after which the cable is extended upwardly and over the pulleys 9 carried in the depending end portions of the cross member of the T-shaped supporting bracket 5. The cable end portions then extend in a substantially horizontal plane and pass around the rollers or guide pulleys 10 carried in the roller supporting members 11, which latter are pivoted upon the ends of the cross bar 12. These cable ends then connect with the central portion of the cable which extends forwardly and passes around the stationary guide roller 13 or pulley mounted on the upper face of the beam 1 near the slotted end thereof. This may be readily understood by referring to Figs. 1 and 2.

- face thereof. A stationary enclosing and protecting casing 17 is provided for the spring l lr and normally the spring is practically-enclosed in thecasing 17 This casing 17 has both ends open and is secured 7 upon the upper face of the beam 1 by suitable securing members passed through the laterally extended ears 18 on opposite sides of the spring casing 17 and near the ends thereof, as shown in the drawings.

It is believed the complete mounting should now be apparent both in construction and operation, from the foregoinguparagraphs taken in connection with the accompanying drawings. It may be briefly stated, however, that when the temj'perscrew is 'forced do'wn or sorewed'out in the. usual manner, after fastening of the 'clamps4,the cable 8' will be operated upon todraw the cross bar 12 toward the slotted end of the beam 1 and thereby expand the spring 1 1. Therefore, when the clamps 4 are released, the spring 14 will immediately act to resiliently return the temper screw to its raised or'normal position and retain the temper screw in this'position until again operated. This resilient mounting of the temper screw will relieve the'same of considerable strain and reduce the labor and number of operators required for this oper ation to the'minimum. ilt is believed that further description ofthe operation is unnecessary.

While the preferred embodiment of the invention has been shown and described, it should be understood that minor changes in the details of construction and arrangement of parts may be resorted to within the scope of what is claimed without departing from the spirit of 'th'e inventi'oii.

'What is 'claimed is;

1JA 'resilient mounting 'for a temper screw of a drilling apparatus comprising the combination with thetemper screw'an'd the supporting beam therefor, "of a cable connected with said temper screw, asprin'g mounted on said beam, a cross bar carried by said spring, guide pulleys mounted onv said cross bar, a stationary guide pulley mounted'on saidbeam, said cable being extended around said guide pul1eys,"and ajprotecting casing for said spring. a

2. A resilijent mounting for the temper screw of a drilling apparatus comprising the combination withqth'e temper screw, clamps and supporting beam, ofim'eansfor mounting. said-temper screw on'one end'of said beam, asu'pporting spring connected by oneend with said' beam, anopenen'ded casing for said spring, "means for securing said casing upon said beam, a cross-bar carriedby said spring, a flexible supporting member connected with said cross bar and.

with said temper screw, whereby said temper screw is reslliently retained in lts normal raised-position, and guide members for said fleXible supporting member.

In testimony whereof I, affix my signature.

FRANK J

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