US747401A - Hoisting-machine. - Google Patents

Description

No. 747,401)" PATENTED DB0; 22, 1963;

s; .POLTZ. HO'IST'ING MAOHINE.

APPLICATION FILED MAY 14, 1903.

N0 MODEL.

Wilgzsscs UNITED STATES Patented December 22, 1903.

SILAS M. FOLTZ, OF RAWSON, OHIO.

HOlSTlNG-MACH|NE.

SPECIFICATION formingpart of Letters Patent No. 747,401, dated December 22, 1903. I Application filed May 14, 1903. Serial No. 157,158. (No model.)

To aZZ whom it may concern).-

Be it known that I, SILAs M. FOLTZ, a citi zen of theUnited States, residing at Rawson, in the county of Hancock and State of Ohio, have invented a new and useful Hoisting- Machine, of which'the following is a specification.

This invention relates to devices employed for hoisting, more particularly for usein connection with oil and other wells and for similar work, and has for its object to improve and simplify structures of this character and produce a device whereby the weight of one parts are denoted by like designating characters, Figure 1 is a front elevation. Fig. 2 is a sectional elevation of the hoisting mechanism. Fig. 3 is a top plan view of the hoisting mechanism; and Fig. 4 is a perspective View, on a reduced scale, of a derrick with the improvements applied.

The improved device may be employed in any locality and in connection with any structures or for any purpose to which it is adapted,

and I do not, therefore, wish to be limited in its use for any specific purpose, and therefore reserve the right to its use wherever applicable; but as the device is more particularly designed for use in connection with oil and other similar Wells it is shown operative in connection with a conventional form of hoisting-derrick, (represented at 10,) the device being attached to one of the legs of the derrick.

The improved device consists of a supporting-frame, preferably formed of a back portion 11, having one side 12 integral therewith and turned at rightangles thereto, as shown, and provided with spaced shaft- bearings 13, 14, and 15, as shown. The opposite side 16 of the frame is also turned at right angles to the back portion and provided with spaced recesses opposite the bearings in the side portion 12. Attached, as by clamp-bolts 17, to the recessed side 16 is a plate 18, having shaft- bearings 19, 20, and 21, conforming to and disposed in transverse alinement with the bearings in the side 12, as shown. The two parts 16 and 18 when thus united form a side to the frame substantially the counterpart of the side portion 12.

Journaled in the alined bearings 13 and 19 is a shaft 22, carrying a winding-drum between the side portions 12 18, formed with end flanges23 24 and central flange 25,whereby a drum is formed having two independent sections 26 27, but connected to berotated simultaneously with the shaft to which they are attached.

Mounted upon the shaft 22, outside the side portions 12 18 of the frame, are gears 28 29 and partaking of the motion of the shaft.

Mounted for rotation in the alined bearings 14 20 is a primary counter-shaft 30, having pinions 31 32 outside the side portions of the frame and operatively engaging the gears 28 29, as shown, the shaft 30 having square ends for the. attachment of cranks by which the shaft may be rotated. The primary countersh'aft is also provided with a gear 35 outside the frame-sides, as shown.

Mounted for rotation in the bearings 15 21 is a secondary counter-shaft 36, having a pinion 37 operatively engaging the gear 35 and also provided with square ends to receive the operating-cranks or other means for applying the power.

Embracingthecounter-shafts 3036,between the side portions 12 18 of the frame, is a resilient brake-band 41, with its ends pivotally connected at 42 43 to an operating-lever 44,

as shown in Fig. 2, whereby the brake-band means a floating lever is arranged which is very easily operative and which will be supported in its inoperative position by the reand cheaper supporting-frame, one which' siliency of the band. By this simple means also a double-acting brake mechanismis provided which acts simultaneously upon the oppositely-rotating counter-shafts,thereby very easily and quickly regulating and controlling the movements of the drum.

The hoisting-cables are represented at 45 46 and are connected to be wound upon opposite sides of the drum-sections 26 27, so that whileoue cable is being wound upon one dru m the other cable will be unwound from the otherdrum-section. By this meansthe weight beinglowered willassist in elevating the load being elevated, and in the same manner it will be obvious that when both cables are loaded one counteracts the other and there can be no running away of the device. By this means also the power required to operate the device is comparatively small, and by the use of the secondary counter-shaft the power required can be materially reduced or a much heavier load elevated by the expenditure of the same amount of power.

The construction of the frame as shown is an important and valuable feature of the invention, as by this means the various shaftbearings may be constructed without detachable caps, thus producing a much stronger may be constructed largely of steel plates and bent up into shape. The back portion 11 and side portions 12 16 will preferably be of a single piece of plate metal, and the portion 18 will likewise preferably be formed of a metal plate.

The device may be formed of any desired size and the gear-wheels and other parts modified as to size and Mother minor particulars without departing from the principle of the invention or sacrificing any of its advantages.

Having thus fully described the invention, what I claim is I. In a machine of the class described, a winding-drum mounted for rotation and carrying driving-gears at its opposite ends, a counter-shaft mounted for rotation and carrying spaced pinions operatively engaging said driving-gears, and a brake adapted for application to said counter-shaft between said pinions, substantially as described.

2. In a machine of the class described, a winding-drum mounted for rotation and having an intermediate division forming its surface into independent winding-sections, independent winding-cables connected to be wound upon said drum-sections from opposite sides, spaced gears atthe opposite ends of said drum, and a counter-shaft mounted for rotation and carrying spaced pinions engaging said spaced gears, substantially as described.

3. In a machine of the class described, a winding-drum, mounted for rotation and having an intermediate division forming its surface into independent winding-sections, independent winding-cables connected to be wound upon said drum-sections from opposite sides, spaced gears at the opposite ends of said drum, a counter-shaft mounted for rotation and carrying spaced pinions engaging said spaced gears, and a brake operating upon said counter-shaft between said pinions, substantially as described.

4. In a machine of the class described, a frame formed with spaced side members, a drum mounted for rotation between said frame members, gears carried by the shaft of said drum outside said frame members, a counter-shaft mounted for rotation in said frame members and having pinions outside said frame members operatively engaging said drum-gears, and means for forcibly rotating said counter-shaft, substantially as described.

5. In a machine of the class described, a frame formed with spaced side members, a drum mounted for rotation between said frame members, gears carried by the shaft of said drum outside said frame members, a counter-shaft mounted for rotation in said frame members and having pinions outside said frame members operatively engaging said drum-gears, a brake operating upon said counter-shaft between said frame members, and means for forcibly rotating said countershaft, substantially as described.

6. In a machine of the class described, a winding-drum mounted for rotation and carrying a gear, a primary counter-shaft mounted for rotation and carrying a pinion operatively engaging said drum-gear, a gear carried by said primary counter-shaft, a secondary counter-shaft mounted for rotation and carrying a pinion operatively engaging said primary counter-shaft gear, and a brake operative simultaneously upon said counter-shaft, substantially as described.

7. In a machine of the class described, a frame formed with spaced side members, a drum mounted for rotation between said frame members, gears carried by the shaft of said drum outside said frame members, a primary countershaft mounted for rotation upon said frame and having spaced pinions operatively engaging said drum-gears, a gear carried by said primary counter-shaft, a secondary counter-shaft mounted for rotation upon said frame and having a pinion operatively engaging said primary counter-shaft gear, and a brake operating simultaneously upon said counter-shafts, substantially as described.

8. In a machine of the class described, a winding-drum mounted for rotation and carrying a gear, a primary counter-shaft mounted for rotation and carrying a pinion operatively engaging said drum-gear, a gear carried by said primary counter-shaft, a secondary counter-shaft mounted for rotation and carrying a pinion operatively engaging said primary-counter-shaft gear, and a brake consisting of a resilient band embracing said counter-shafts, and an operating-lever connected to the ends of said brake-band by spaced pivot bolts, whereby ends of said brake-band may be simultaneously actuated, substantially as described.

9. In a machine of the class described, a supporting-frame consisting of a back plate having outturned sides with one of said sides having spaced shaft-bearings, and the other of said sides having spaced recesses, a plate adapted for attachment to said recessed sideand having spaced shaft-bearings in transverse alinement with the bearings-in said first-mentioned frame side, a winding-drum having a shaft, and mounted for rotation in said alined bearings and carrying a drum, 0p-

SILAS M. FOLTZ.

Witnesses:

J. S. Buss, JOHN W. BAKER.

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