US1164002A - Well-drilling register. - Google Patents

Description

N. M. JONES. WELL DRILLING REGISTER. APPLICATION FILED APR. 12. 1915 Patented Dec.14,1915.

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2 SHEETS-SHEET I.

WITNESSES:

4 TTORIVEI N. M. JONES.

WELL DRILLING REGISTER. APPLICATION FILED APR. I3. I

Patented Dec. 14, 1915.

2 SHEETS-SHEET 2.

NOAH M. JONES, 0F CRANFILLS GAP, TEXAS.

WELL-DRILLING- REGISTER.

Specification of Letters Patent.

Patented Dec. ML, 1915.

Application filed April 13, 1915. Serial No. 21,064.

. the drill cable when the bit is being withdrawn from the well.

Another object is to suspend the register in such a manner that its grooved wheel will bear on the drill cable when it is desired to measure the depth to which the well has been drilled; also whereby the register may be fastened out of operative position so that the grooved wheel is with-held from the cable.

Among other objects is the provision of a novel form of register casing; the provision of a series of register wheels operated by a grooved wheel and arranged to be set when necessary; and the provision of novel supporting means for the casing.

A still further objectof the invention is to provide a device of the character described that will be strong, durable efficient and simple and comparatively inexpensive to construct, also one in which the several parts will not be likely to get out of working order.

With the above and other objects in view, the invention has relation to certain novel features of construction and operation, an example of which is described in the following specification and illustrated in the accompanying drawings; wherein:

Figure l is a sideelevation showing the register in position for operation and indieating in dotted lines its inoperative position, Fig. 2 is a front elevation of a drill rig mast showing the register in position against the drill cable, Fig. 3 is a side elevation of the register, Fig. 4 is a similar view with the hinged side thrown open, and Fig. 5 is a longitudinal sectional view on the line m -w of Fig. 4:.

In the drawings the numeral 1 designates an irregular shaped metal casing having a door 2 hinged at one side. At the upper corner of the casing a boss 3 is provided and forms a bearing for a transverse pin 4 which projects on each side of the casing and receives the lower ends-of links 5 whereby the casing is pivotally suspended between said lmks as is clearly shown in Fig. :2. These links are bent outward and have their upper ends pivoted to the mast 6 of the well drilling rig. As shown in Fig. 1 the casing normally hangs so as to prevent foremost a grooved wheel 7 which projects from the casing and is mounted on a shaft 8 carried in lugs 9 provided on the casing.

As shown in Fig. 1 the wheel 7 is in contact with the drill cable 10 and as said cable is moved upward during the withdrawal of the drill bit, said wheel will be revolved and will operate registering mechanism (here-inafter described) disposed in the casing. The weight of the casing holds the wheel 7 in contact with the drill cable. During the drilling operation the register must be held out of contact with the cable as the measuring of the depth of the well is only performed when thebit is withdrawn. For

fastening the register out of operative posi- I tion as indicated in dotted lines in Fig. l a chain 11 is attached to the top of the casing and by engaging the same with a hook 12 on the mast 6, said casing is swung away from the cable and so held. When it is de sired to take the measurement the chain is released from the hook whereby the register is free to swing down and the wheel 7 engage the cable.

The grooved wheel 7 has such a diameter that at'each revolution it measures an equal number of feet of the passing cable and it is apparent that by associating a plurality of registering wheels with the grooved wheel various measurements may be recorded.

It is not my intention to limit my invention to any particular form of registering apparatus and that shown in the drawings is Y merely an example.

The wheel 7 is proportioned to measure two feet of cable at each revolution and is provided with a pair of opposed pins 13 mounted on its side as shown. Register wheels l-l, 15 and 16 respectively are mounted on bosses 17 projecting into the casing from the fixed side of the same. The wheels 14 and 16 over lap the intermediate wheel 15 and each wheel has substantially the same construction and a description of one will suffice for all. The register wheel 11 overhangs the pulley 7 and is provided with spaced peripheral lugs 18 of which there are ten numbered successively from 0 to 9. The lugs serve as teeth by which the wheel is rotated and one of these lugs projects into the path of the pins 13 and is engaged thereby.

At each half revolution of the wheel 7 a. pin 13 engages one of the lugs 18 and rotates the register wheel the distance of one lug thus indicating that one foot has beenmeasured. A pin 19 depends from one of the lugs of the wheel 14 and as the said Wheel is about to complete a revolution this pin engages one of the lugs of the wheel 15 and rotates said wheel the distance of one lug which indicates that ten feet have been measured. The wheel 15 carries an upstanding pin 20 adapted to engagea lug of the wheel 16 after a complete revolution of the wheel 15 thus registering the measurement of one hundred feet of cable. The capacity of the register wheels'shown is one thousand feet and it is apparent that this may be increased or diminished.

For resetting the wheels and also for preventing over throw of one wheel by the other each Wheel is provided with a countersunk central knob 21 in which a coiled spring 22. is confined under the head of a stub shaft 23 threaded and screwed into the boss 17. By this construction each wheel is resiliently held in position and enough friction exerted to prevent lost motion and overthrow. By opening the casing and grasping one of the knobs the register Wheel may be pulled outward and rotated to the desired position for resetting without disturbing the other wheels except in the case of the Wheel 15 which must be adjusted in conjunction with the other wheels.

The door 2 is provided with apertures 24 each of sufficient diameter to expose one number of a register wheel and are arranged as shown. It is obvious that the location of the pins 19 and 20 will be governed by the location of the apertures with respect to the numbers on the lugs 18. Suitable means for fastening the door in a closed position may be provided.

The invention is presented as including all such modifications and changes as would properly come within the scope of the appended claim.

What' I claim, is:

The combination with the mast of a well drilling rig, of a register having a grooved cable wheel protruding from its lower end, a supporting element hinged tothe mast and depending therefrom and pivotally engaging the upper end of the register whereby the latter is suspended, the lower end of the register being free to swing, the register bein constructed to be swung out of operative re ation to the drill cable, and means carried by the mast for .l'astening the register in its inoperative position. i

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

NOAH M. JONES.

Witnesses:

J. L. WHITE, R. 'O. JONEs.

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