US277147A

US277147A - Hoisting-machine

Info

Publication number: US277147A
Authority: US
Publication date: 1883-05-08
Anticipated expiration: 1900-05-08

Description

N0 MOdeL) J. MAYHEW &' E. D. PAYNE.

HOISTING MACHINE.

Patented May 8, 1883.

N. PEIERs. Phum-Limo n mr, Washin ton. D. C.

UNITED STATES PATENT OFFICEQ I JOSEPH MAYHEW AND EDGAR D. PAYNE, OF CINCINNATI, OHIO.

HOISTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 277,147, dated May 8, 1883. v Application filed February 5, 1883. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH MAYHEW and EDGAR D. PAYNE, citizens of the United States, residing at Cincinnati, county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Hoisting-Machines, of which the following is a specification.

This invention relates to that class of hoisting-machines which are used in the construcparts whereverthey occurinthediflerentviews,

and then particularly pointed out in the claims.

Figure 1 is a vertical section taken through line 00 w of Fig. 2, showing in the rear of the drums and their operating mechanism two platform-elevators with bod-rests working between vertical guides, and suspended from ropes, which pass from the drums over pulleys hung in frames resting upon the joists of the story above. Fig. 2 is a top plan view of the driving mechanism.

Referring to the parts, A is a woodenframe, which forms the base of the machine. Upon the cross-tie A is secured a standard or hollow pillar, B, which has projecting centrally from it a shal't,b,upon which the master-wheel (l is journaled. Two standards, D D, secured upon the side timbers of the base A, furnish journal-bearings for the outer ends of the shafts e 6, upon which the rope-drums E E are secured. The inner ends of the drum-shafts are journaled in a support, F, which arches over the master-wheel, and has its ends resting upon and secured to the base-frame. Upon the shaft eis secured a pinion, G, which meshes into the teeth of wheelU. Asimilar pinion, G,

is fitted to turn freely upon shaft e, and also meshes into wheel 0, and is driven by it.

H is a clutch splined upon shaft 6, and adapted to be thrown into or out of engagement with the pinion G by a lever, h, fulcrumed on the standard D. The objectof the clutch is to regulatethe machine for elevating to the different stories of the building, as will be hereinafter described.

The drum-shafts are driven in opposite directions by the wheel 0 through the pinions G G. Motion is imparted to wheel 0 through a beveled pinion, J, which is secured upon the end of a shaft,j. The shaft j is driven by a cog, K, which is secured upon the crank-shaft k, and meshes into a pinion, L, secured upon shaft j. The shaftsj and k arejournaled in a standard, M, which is secured upon the base A. The platforms N, having bod-rests a secured upon them, are arranged to slide between upright guides at, and are suspended from wire ropes O O,'which are wound in opposite directions around the drums E E, and pass over sheaves 0, which are suspended from cross-bars in the frames P, which rest upon the rafters of one of the upper floors of the building.

The machine as represented in Fig. 1 is arranged to elevate to the second story of a building, the platforms being so adjusted that one is ascending while the other is descending. VVhen,in the course of constructionbf the buildin g, it is desirable to elevate the materials to the third story, the clutch H is thrown out of engagement with the pinion G. The frames P are then placed upon the next tier of rafters above and the ropes O properly adjusted, which is done by winding the rope upont-he tight pulley until the platform sustained by it is brought to its upper position. Theplatform, which is suspended from the rope upon the now loose drum, being at the same time in its lower position, the clutch is then thrown into engagement with the pinion G, and the machine is ready for use. The platforms are locked in any position by apawl, q, thrown into engagement with a notched disk, q, keyed upon the shaft j.

It willbe seen that our machine can be cheaply con'structed,occupies but a small space, and can be rapidly put up for use, changed for the different elevations required, and taken apart for removal. I

What we claim as new, and desire to secure by Letters Patent, is-

1. In a hoisting=machine of the character described, the combination, substantially as specified, of frameA and master-wheel O with rope-drumsE E, mounted upon shafts .e e, andpinions G G, meshing into wheel 0.

2. The combination of the rope-drums E E, having pinions G G upon the ends of their shafts at opposite ends, with the master-wheel (3, arranged to engage the pinions G G and rotate the shafts in opposite directions, and suitable mechanism, such as shown, to drive the master-wheel, substantially as described.

3. In a hoisting-machine of the character described, the combination, substantially as specified, of wheel 0, drums E E, pinions G G, and clutch H, the pinion G being keyed to its shaft, while the pinion G is loose upon its shaft when the pinion G is disengaged from JOSEPH MAYHEW. EDGAR 1). PAYNE.

Witnesses: v

JACOB J. GESSERT, GEO. J. MURRAY.