US664073A - Hoisting machinery. - Google Patents

Description

No. 664,073. Patented Dec. l8, I900. H16. BEHR. HOISTING MACHINERY.

(Applicatiqn filed June 25, 1900.)

(No Model.)

3 Sheets-Shaet amm jzvei??an' Patented Dec. l8, I900.

1H. CLBEHR; HOISTING. MACHINERY.

' (Application filed June 25, 1900.)

(NoModeL) 3 Sheets-Sheet 2.

ORRIS Prrslws cu mm NITED. STATES AENT FFICE.

HANS C. BEHR, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE FRASER dz; CI-IA'LMERS, OF CHICAGO, ILLINOIS.

HOISTING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 664,073, dated December 18, 1900;

Application filed June 25, 1900.

To all whom it may concern.-

Be it known that I, HANS C. BEI-IR, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Improvement in Hoisting Machinery, of which the following is a specification.

My invention relates to improvements in hoisting apparatus for mines, in which the hoisting-rope passes from the pit or mineshaft over a pit-head sheave to a hoistingdrum extending in a plane at an angle to said sheave. In apparatus of this character it is desirable that the rope shall be wound in a single layer upon the drum, and it is also desirable that the diameter of the drum shall be as small as other requirements will admit in order that the size of the driving-engine may not be greater than necessary or that expensive and otherwise objectionable intermediate gearing between the engine and drum may be dispensed with. As the angle of extent of the rope between the pit-head sheave and the drum changes while the rope is being laid on or paid off of the drum, it is neces sary where long drums are employed to provide means for positively guiding the rope to and from the rope-leading face of the drum, and it is also necessary that the sheaves shall all extend in the same plane to prevent undue wear upon the rope.

My objectis to provide improved rope-guiding means between the pit-head sheave and drum whereby the bends of the rope will be reduced to a minimum, the rope will be guided to the drum and laid thereon in asingle even layer without friction of the rope against itself, and the rope-guide sheave at the drum will extend at all times in the plane of the pit-head sheave.

To the above ends my invention consists in the general construction of my improved ropeguiding apparatus, as well as in details of construction and combinations of parts, all as hereinafter set forth and claimed.

In the drawings, Figure 1 is a broken view showing my improvements in side elevation; Fig. 2, a top plan View of a double hoistingmachine constructed with my improvements for a two-compartmentmine-shaft; Fig. 3, an enlarged broken section taken on line 3 of Serial No. 21,488, (No model.)

Fig. 2; Fig. 4, a broken and enlarged section of the mechanism adjacent to the drum; Fig. 5', a broken detail section taken on line 5 of Fig. 4:, and Fig. 6 an enlarged sectiont-aken on line 6 of Fig. 4c.

A denotes a gallows-frame or the like above the two shaft compartments or pits B, which in Fig. 2 are shown spread apart for convenience of illustration.

C C are the pit-head sheaves, D D the hoisting-drums, and E E the rope-guide sheaves.

F F are beams or frames on the opposite endsof which the sheaves C and E are journaled. Each beam F may be trussed between its ends, as shown, and at its upper end is rigidly secured to a horizontally-swinging pivot-frame F. Firmly supported upon the upper end of the gallows-frame, centrally above each pit or compartment B, is a bedplate G, having a central opening a, surrounded on the upper side by a cylindrical bearing-boss at, having a smooth outer face. Extending through the opening a is a hollow liner d of wood or other comparatively soft material. Centrally between the sides of the frame F is a bearing-sleeve b, fitting closely around the boss a and resting on a roller or ball bearing 19, interposed between it and the bed-plate. On the forward part of the scaffold is a track 0, and the frame F is provided with rollers c, resting on said track. The pit-head sheave C is journaled in bearings d on the frame F to extend in a plane parallel to and centrally of the sides of the beam F. The rear edge or rope-leading face of the sheave C is centrally above the opening through the liner a The rope-guide sheave E at its forward edge or rope-leading face is in a plane approximately vertical and tangential with relation to the rope-leading face of the drum D. The two drums are upon the same crank-shaft H, which is driven from an engine I. As it is usual in a construction in volving two drums to have one lay on or wind up the rope as the other pays the rope off, one beam F is longer than the other, so that one rope-guide sheave will be above the inner edge of one drum while the other ropeguide sheave is above the outer edge of the other drum. Below the lower forward end portion of each beam or frame F is a station ary frame K, provided on its upper side with a horizontal track 6, preferably curved in the arc of acircle of which the liner a is the center. The face of the track 6 may be inclined, as shown in Fig. 1, to extend in a plane parallel with the inclined beam F. On the under side of the lower forward end portion of the frame F is a roller f, at which it rests upon the track 6. Journaled in the frame K and extending parallel with the drum D isa screwshaft 9, provided at one end with a pulley or sprocket wheel g. The drum is provided with a trunnion h, shaped to form a pulley or sprocket wheel in the plane of the pulley or sprocket wheel g, and a belt or chain It gears the two together. 0n the screw-shaft g is a traveling nut 1', having an arm 1' loosely and pivotally connected at its free end to the under side of the beam F at i". The nut t', with its arm t", is in the nature of a swinging link pivoted on the screw-shaft g, permitting relative longitudinal movement of the beam. The gearing between the drum D and screwshaft 9 is such that in the turning of the screw-shaft the nut will be caused to travel at a speed which will move the rope-guide sheave a distance approximately equal to the width of the rope in each revolution of the drum. Owing to the length of the beam F it moves at its free end in the arc of a circle of great diameter, whereby the movement of the sheave in the direction transversely of the drum is but slight and not enough to in any way interfere with the proper laying on or paying off of the rope.

In operation as the rope is wound upon or paid off from the drum the beam or frame F is caused to swing in an are nearly parallel with the rope-leading face of the drum, as described, the frame F swinging upon the pivot at a. Thus the ropedeading face of the pithead sheave will never change with relation to the opening in the liner a through which the rope X depends into the mine-compartment, and the sheaves C and E will always remain in the same plane with relation to each other, whereby there will be no friction of the rope against the sides of the grooved faces of the sheaves. Furthermore, by thus mounting the frame with its pivot about the rope X only two sheaves are necessary between the mine-compartment and drum, thus dispensing with additional bends of the rope, which are objectionable for obvious reasons.

While I have shown and described my improvements in the form in which I prefer to provide them, they may be variously modified in the matter of details of construction without departing from the spirit of my invention as defined by the claims.

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

1. The combination of the pit-head sheave, over which the rope passes immediately from the mine-shaft, the rope-winding drum, a rope-guide sheave adjacent to the windingdrum, a swinging frame, carrying both said sheaves, pivoted above the mine-shaft in line with the rope depending into the shaft and operating to hold the sheaves approximately in alinement with each other throughout the movement of the frame.

2. The combination with the mine-shaft, gallows-frame above the shaft and windingdrum at one side of, and extending at an angle to, the shaft, of a swinging frame pivoted upon the gallows-frame to swing at its free end in an arc the center of which is in or approximately in line with the rope depending into the shaft, a pit-head sheave journaled on the swinging frame with its rope-loading face on the axis of said frame, and a rope-guide sheave on the swinging frame adjacent to the drum and approximately in alinement with the pit-head sheave.

3. The combination with the mine-shaft, gallows-frame above the shaft and rope-winding drum at one side of, and extending at an angle to, the shaft, of a swinging frame pivoted upon the gallows-frame around the rope depending into the shaft, a pit-head sheave journaled on the swinging frame with its rope-leading face on the axis of the swinging frame, and a rope-guide sheave on the free end portion of the frame, adjacent to the drum and approximately in line with the pit- .head sheave.

'4. The combination with the mine-shaft, gallows-frame above the shaft and windingdrum at one side of and extending at an angle to the shaft, of a swinging frame pivoted at one end portion upon the gallows-frame and extending in a downward-inclined direction with its free end adjacent to the drum and swinging at its free end in an arc the center of which is approximately in line with the rope depending into the shaft, a pit-head sheave journaled on the swinging frame with its rope-leading face on the axis of said swinging frame, and a rope-guide sheave on the free end portion of the swinging frame approximately in line with the pit-head sheave.

HANS O. BEHR.

In presence of D. W. LEE, A. D. BACCI.

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