US1591884A - Hoist - Google Patents

Description

July 6 1926. 1,591,884 7 A. E. PETERS HOIST Filed March 19, 1926 2 Sheets-Sheet 1 IN V EN TOR.

111 AT 0 NEY July 6 1926.

A. E. PETERS HOIST Filed March 19, 1926 2 Sheets-Sheet 2 E p M E s I r u m LY AB Patented July 6, 1926.

UNITED STATES PATENT OFFICE.

ARTHUR E. PETERS, OF LITTLETON, COLORADO, ASSEGNOR TO INGERSOLL-RANB COIN!- PANY, OF JERSEY CITY, NEVJ JERSEY, A CORPORATION OE lTE'W HOIST.

Application filed March 19. 1826. Serial No. 95,940.

This invention relates to hoists, but more particularly to a portable type of hoist which may be mounted or. suitable bars or columns for use in mining operation or other more general applications.

An object of the invention is to simplify the construction of this type of hoist where by the weight may be partially reduced and also to compactly arrange the operative elements.

Other objects and advantages will be in part obvious and in part pointed out hereinafter.

In the accompanying drawings forming part of the specification and in which similar reference characters refer to similar parts,

Figure l is a side elevation of a hoist constructed in accordance with the practice of the invention, and

Figure 2 is a horizontal section along the line 22 looking in the direction of the arrows.

Referring to the drawings, the hoist coniprises av centrally disposed gear ase A provided with a pair of oppositely disposed flanges B and C at opposite ends of the case A, a motor D being mounted on the flange 0 and a rope drum E being rotatably mounted on a cylindrical extension F at the flange B and formed integrally with the gear case A.

A base G for the hoist is preferably formed integrally with the gear case A and may be provided with a cylindrically shaped groove H to receive a column J or other round support as a mounting for the hoist. Another groove (not shown) at to groove H allows supporting the hoist at right angles. A clamping jaw K provided with suitable bolts L is adapted to grip the column or support J in conjunction with the base G. Preferably the base G is located to ward the rope drum E and away from the gear case A so that the pull of the rope O on the drum E does not provide too great a moment about the support J.

The motor D may be of the square piston type as disclosed in application, Serial No. 71,80? of Hyman Levine, filed November 27, 1925, and is provided with a crank shaft P rotatably mounted in one side of the gear case A by means of a suitable journal Q. The motor end of the shaft P is ournaled as by means of an anti-friction bearing R in the back head S of the motor D. The crank pin T of the shaft P is journaled by means of a ball bearin U in a piston V or the motor D. A gear Yr suitably keyed to the shaft P adjacent 'ng U and is adapted to mesh with a l gear X rotatahly mountel on a countclshaf A. t Y journalcd one end the side wall. of he gear case A by means a bearing Z and at the other end in the aring Z) supported by tr e motor back head The gear X is provided with a crown utch face having jaws c which are adapted o b engaged by jaws (Z of a movable clutch member 0. On the opposit face of the flange or wall B of the gear case A the counter shaft Y extending through the wall 13 is provided with pinion meshing with gear teeth (7 internally cut in a flange 71 of the rope drum E.

The movable clutch member 6 is adapted to be meted into and out of engagement with the clutch face of the gear X by means of a manually operable lever j mounted on a shaft is passing through the gear case A and journaleo. the bottom in a boss 0. A cam or eccentric p is provided on the shaft 7a to ac tuate a lever Q pivotally mounted by means 41? of a pin 1" on a gear case cover plate 8 and provided at its free end with a yoke 25 engagpins u of a trunnion o engaging the movable clutch member 6 at an annular groove 10.

The clutch member a is adapted to slide upon a squared portion m of the counter shaft Y and is provided with a coil spring 7 about the shaft Y tending to engage the movable clutch member 6 with the clutch face of the gear X. The handle j is provided with a projection a cooperating with a stop 2 to prevent turning of the handle 7' beyond the dead center position of the cam 72 as shown in Figure 2. handle j is turned to the disengaged position of the movable clutch member 0 the stop 2 prevents the spring 7 from pressing the movable clutch member 0 into engagement with the gear X.

In this position of the clutch. the rop drum E may be rotated without turning the motor D. lVhen the handle j is turned to release the movable clutch member 6. the spring ;2 is adapted to force the clutch into engagement with the gear X so that the mo tor D may be used to rotate the rope drum E through the train of gears comprising the gear W on the crankshaft P, the gear X on the countershaft Y engaged by the mov- Thus, when the able clutch member 6 and the pinion f on the countcrshatt Y engaging the internal teeth Q on the flange 71,.

The rope drum E is adapted to rotate on suitable bearing bushings 8 fitted on the cylindrical extension F at the flange B. he rope drum is held on the cylindrical extension F by means 01" an one plate 4 attached by means of suitable screws 5 to the cylindrical extension and adapted also to enclose a chamber 6 within the cylindrical ext 1 sion F for oil or other lubricant. Suitable apertures 7 ext-end through the cylindrical extension F from the chamber 6 to communicate with the bearing bushings 3. Oil may be introduced into the chamber 6 through'an elbow pipe connection 8 passing through the end plate 7%.

The rope drum E is preferably provided with a brake comprising a. band 9 on the exterior of the flange 71 adapted to be iliQ'l'liened in a suitable manner by means oi a hand lever 10 on a screw shaft 11 mounted on the base G.

The motor D is provided with a suitable throttle (not shown) operated by a thrott e lever 12 for controlling the flow of motive fluid from av source adapted to be connected with an inlet pipe connection 13. The exhaust fluid "from the motor is adapted to escape through a pipe connection 14; to atmosphere.

The above described construction provides an arrangement which is very simply as seinbled and disassembled. All portions of the clutch and its associating operating mechanism are easily reached or removed by removing the cover plate 8 of the gear case A. The gears within the case A anJl the shafts to which they are attached may be removed by removing the screws 14 attaching the motor D and its back head S to the flange C. One oi the most important advantages in convenience is the ease with which the drum E may be removed. This is accomplished by merely removing the end thrust plate 4 and slipping the drum end rise from the cylindrical extension F. It is thus seen that any portion of the hoist n'iay be removed without disarranging the,

major part of the remaining construction.

lhe gear case A also provides a convenicnt housing for a counterbalance Weight which may be keyed to the crank shatt- P. The counterbalance 15 is adapted to counteract the unbalance or all rotative portions of the motor D.

Thus are accomplished among others, the obiects hereinbettore referred to.

I claim:

A hoist comprising in combination a gear case flanged at opposite ends and provided with a cylindrical extension at one otsaid fla ges, a r se drum rotatably mounted on cylindrical extension and having an in- .ally toothed flange adjacent a flange of ti gear case, a removable thrust member r said rope drum at the free end of said -2.mdrical extension, a motor mounted on he opposite flange of said gear case, a drive hait for saiiil motor extending into Said ear case and journaled therein, a counteralance on said shaft adapted to rotate Withthe gear case, a countersha-ft journaled the case and extending through a ange of said gear case, reduction gearing on said drive shaft and countershait, a pinion on said countersha-tt in engagement with the internally toothed flange of said rope drum, and an externally operable clutch on said countershaft to connect said gearing with said countershaft.

In testimony whereof I have signed this specification.

ARTHUR E. PETERS.

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