US1368779A

US1368779A - Elevator for casings or pipings

Info

Publication number: US1368779A
Application number: US290795A
Authority: US
Inventors: Victor W Zilen
Original assignee: LUCEY Manufacturing CORP
Current assignee: LUCEY Manufacturing CORP
Priority date: 1919-04-17
Filing date: 1919-04-17
Publication date: 1921-02-15
Anticipated expiration: 1938-02-15

Description

'APPLICATION FILED APR. 17| 1919.

Patented Feb. l5, WZL

UNE.

errar Nracer,

VICTOR W. ZILEN, 0F GHATTANOOGA, TENNESSEE, ASSIGNOR TO LUCEY MANUEAC- TUBING CORPQRATION' OF TENNESSEE, A CORPORATION 0F TENNESSEE,

Specication of Letters Patent.

Patented Feb. 115, 1921 Application led April 17. 1919. Serial No. 290,795.

To aZZwho/m t may concern."

Be it known that l, VICTOR W. ZILEN, a subject of Russia residing at Chattanooga, in the county of Iiamilton and State of Tennessee, have invented certain` new and useful Improvements in Elevators for Casngs or Pipings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to niake and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to casing or pipe elevators designed more particularly for raising and lowering, and connecting up, casing and tubing employed in well drilling apparatus, particularly for drilling oil, Artesian, or gas wells. It has for its object the production of lan elevator of the type indicated which can be conveniently handled in the derrick and applied to the piping or tubing .by a single operator, and which can be closed or opened on the casing or piping in an easy and expeditious manner by a push or pull of the operator singlehanded, and which provides an efiicient locking of the elevator on the casing or piping secure against accidental unlocking or displacement. -The device comprises in its principal features a two part clamp consisting of a main body portion and an auxiliary movable ate or closure portion, hinged one to the ot er, and together adapted to encircle and clamp the casing or piping, and a hinged member carried by the movable gate or closure and serving as a handle for moving the closure member and also as a locking latch for locking the closure member and the main body portion one to the other. t further consists in various features of construction, all of which will be hereinafter described and then sought to he particularly defined by theiclaims, reference being had to the accompanying drawin forming a part hereof, and in which,

' igure 1 is a pla-n view of the elevator, illustrating the parts in their closed position;

Fig. 2 is a side elevation of the same;

Figs. 3, 4 and 5, are side, front and top views, respectively, of the gates by which i the bails are secured in place.

In the drawing the numeral 1 designates the main body portion Aof the casing elevator and comprising a central semi-cylindrical portion 2 and end extensions 3 which are formed with openings i for the lifting hails 5, preferably V-shaped or elongated in form. These hails are inserted through openings in the end extensions which are closed by gates 6 which fit therein and are held in place by bolts 7 These gates may be of any approved form in outline but preferably of the arcuate form illustrated, that is, have convex upper and lower faces a, flattened sides b, and concave faces c, so that when inserted in place theywill be free from any twisting or turning action on the securing bolts 7 and will present/ a curved surface next to the lifting bails 5 conforming in outline to the other portions of the openings 1 in which the lifting hails fit.

To the main body portion 1 there is hinged by a pin or bolt 8 a swinging gate or closure member 9, semi-cylindrical in form, and lwhich together l, with the main body 'portion constitute a clamp which will encircle the casing and clamp the same so that it may be raised or lowered with the elevator or clamp. The main body portion l of the elevator is formed with a cat-head consisting of the lugs 10 between which is preferably formed a stud 11, and the swinglng gate or member 9 is provided with a combined locking latch and handle' 12. preferably of bell-crank form, pivoted by a pintle or pin 13 to ears 14 formed integrally with the gate. The latch-member of the combined latch and handle is preferably formed with a T head 15 which will interlock with the catch or lugs 10 of the cat-head7 when the gate is closed, and the handle member 16 is formed with a grip connecting neck or rod 17 ,to form a rip handle to be grasped by the hand in c osing and opening the movable gate or closure. The inner or free end of the movable gate or closure is cut away or recessed as indicated at (Z, e, so as to receive the latch and its T head when thrown to its unlocking position. The movable gate or closure is formed with a stop 18 against which the latch abuts when the latch is thrown to its unlocking position and which limits the inward movement of the latch and the handle portion of the iatch is formed with a stop 19 which strikes against the face of the movable gate or closure and thus limits the throw of the latch into its locking position. A spring 20, preferably a coil spring encircling the pintle of the combined latch and handle, tends to hold the combined latch and handle in its locking position. A stud 21 on the movable gate or closure next to the knuckle of its pivoting pin 8 will strike against the main body and thus limit the opening movement of the gate.

By providing the combined latch and handle and mounting it on the movable gate or closure member of the elevator, an operator, single-handed, standing upon the platform of the derrick from which the elevator is suspended, will position the main body portion of the elevator with relation to the casing or piping to be clamped, and then with one hand grasping the handle of the combined latch and handle will thronT the latch to its unlocking position against the tension of its spring and at the same time swing the movable gate or closure to its closed position, whereupon the spring will throw the latch into interlocking engagement With the cat-head7 or catch of the main.' body portion. The combined latch and handle will now stand at the angle indicated in F ig. l and the line of pull now being tangent to the direction of movement or motion of the movable closure the lock is strong. and effective. To open the, gate or closure member a pull by the operator o'n the combined latch andv handle \vill\over come the tension of the spring and throw the latch into its disengagingv position and at the Same time swing the gate or closure on its pivoting pintle into open position. This affords a simple and easy manipulation of the movable gate or closure in both closing and opening operations by a single attendant or operator, and at the same time a very secure and efiicient locking of the gate in its closed position without liability to accidental disengagement or opening.

l have illustrated and described with particnlarity the preferred details of the various parts and While such details are preferred because of advantages they possess yet they may be changed Without depart-ing from the main features of the invention as eXpIressed in some of the claims.

aving described my invention and set forth its merits what l claim is:

1.l An elevator for casing or piping comprising a main body having an opening for the casing or piping and formed With a latch-catch, a movable gate or closure inember formed to receive a part of the casing or piping and connected to the main body, and an oscillatory combined latch and handle pivoted to the closure member and having the handle lying to one side of the pivot and the latch to the other side and positioned for the latch to engage the catch of the main body when in closed position and the handle serving for releasing the latch and mani ulation of the closureymember in moving tie same to closed and open positions.

2. Anm elevator for casing or piping comprising a main body having an opening for the casing or piping and attachment means at opposite sides of the opening for suspension ofthe elevator and formed with a latchcatch, a movable gate or closure member formed to receive a part of the casing or piping and connected to the main body,- a combined latch and handle carried by the movable closure member and positioned for the latch to engage the catch of the main body when in closed position, and the handle serving for manipulation of the closure member in moving the salue to closed and open positions, and a spring for holding the latch and handle under spring tension.

3. An elevator for casing or piping cmprising a main body having an opening for the casing or piping and formed with a latch-catch, and a movable gate or closure member formed to receive a part of the casing or piping and connected to the main body, a combined latch and handle carried by the movable closure member and positioned for the latch to engage the catch of the main body ivhen in closed position, the movable closure being recessed to receive the head of the latch when retracted for opening the closure member.

4. An elevator for casing or piping comprising a main body having an opening for the casing or piping and formed With a latch-catch, a movable gate or closure member formed to receive a part of the casing onpiping and connected to the main body, a .combined latch and handle carried by the movable closure member and positioned for the latch to engage the catch of the main body when in closed position, and stops between the movable closure members and the combined latch and handle to limit the throw of the latch and handle.

5. An elevator for casing or piping comprising a main body having an opening for the casing or piping and formed With a latch-catch, a movable gate or closure member formed to receive a part of the casing or piping and connected to the main body, and an oscillatory combined latch and handle positioned to have the latch bear against the closure member on manipulation of the handle in moving the closure member to closed and open position and to engage the catch of the mam body when the closure member is in closed position.

In testimony whereof l afiix my signature in presence of two Witnesses.

VICTOR W. ZILEN.

Witnesses:

H. S. CRANFORD, P. R. MILLSAPS.