US1449542A - Winding engine - Google Patents

Description

Mair. A27, 1923. A 1,449,542

' A. PALMRfiS ET AL WINDING-ENGINE Filed May 5, 1919' s sheets-sheet 1.

My; fflc/cb a azgevi A. PALMROS ET AL WINDING ENGINE Filed May 3, 1919 Mar. 27, 1923.

Mar. 27, 1923.

A. PALMROS ET AL WINDING ENGINE Filed May 5, 1919 5 sheets-sheet 5 zza er- Patented Mar, 2?, i923.

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ALEXANDER PALMBOS, EDWIN M. MACKIE, AND GEORGE A HEALEY, 0F SYRACUSE, NEW YORK, ASSIGNORS, BY MESNE ASSIG-NIEENTS, TO THE PNEUMELEC TEIC COB- PORATION, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

WINDING ENGINE.

Application filed May 3, 1919. Serial 1%. 294,604..

To all whom it may] concern Be it known that we, .rinnxannnn Pamrnos, EDWIN M. Miionm, and Grosser-i. Heater, citizens of the United States, residing at Syracuse, in the county of Onondaga ano State of New York, have invented certain new and useful Improvements in Winding Engines, of which the following is aspecification.

This invention relates to winding engines for use in any situation wherea rope, cable, or equivalent flexible connector is employed for performing work such, for instance as hoisting, mine hauling, timber conveying, excavating and loading by scraper, &c., and particularly to a winding engine employing two drums adapted for independent drive, idling, and braking, but rendered,reciprocal or inter-related in such operations through means of a commoncontrol for their driving connections and a common control for their brakes, whereby either drum is adapted to be driven while the other drumis held stationary, or both drums may be left in neutral and free to revolve under the tension of the rope wound upon them.

The object of the invention is to provide convenient and eiiicient power applying and braking means affording a safe and reliable one-man control for such a winding engine, and. particularly a control that can be conveniently, safely, and efliciently manipulated in the restricted spaces available in mine workings for machines ofthis class.

The invention will be fully understood upon reference to the accompanying dlilW- ings showing one embodiment thereof selected for'purposes of illustration. In said drawings- Figure 1 is a plan view of awinding engine embodying the several features of the present invention. I

Figure 2 is a longitudinal section of the same, with some of the parts in elevation.

Figure 3 is an elevation of the machine viewed from the controlling end;

Figure 4 is a side elevation of an intermediate portion of the, machine embodying the opposite ends of the winding drums with. their brakes, and the gear wheel on the shaft lying between the drums through which the shaft is driven; and

Figure 5, is an end elevation of one of the hrakea General arrangement.

Upon a base 1 areerected end standards 2 and 3, and an intermediate standard 4 in .which is journaled a mainshaft 5 with its driven gear wheel 6. Loosely mounted to rotateuponthe shaft 5 are winding drums 7 and'z andfixedly mounted upon the shaft 5 at one end of each drum, preferably the outer end thereof, are driving clutches8, 8

each having controlling means comprising cones 9 moved in and out by shipping levers 11 mounted upon transverse rock/shaft 10 with actuating rock armsll 11 coupled to move in unison by connecting rod 11, and all under control. of the single manipulatlng means 12. The drums are further propulley driven from some suitable source.

Motor 16 in the presentinstance, has a circuit controller 17, comprising a rheostat lever 17 and a reversing lever 17". Motor 16, in the selected form, is connectedbyreducing gears 16, 16 driving theintermediate shaft 16, and an additional reducing gear 16 meshing with the driven gear wheel 6 on the main shaft 5, as already described I ZH-tflfh control.

As best seen in Figures. 2 and 3, ach clutch consists of an expansion ring 8? working internally upon the flange 7 of the drum, and anchored intermediately at 8" upon one end of the clutch frame 8 which is keyed to the shaft 5 at 8 said expansion ring being connected at 8' near its ends to spreading levers 8 fulcrumed at 8? upon posts 8 adjustably supported at one end of the clutch frame 8 so that movement of;

the levers toward the center of the shaft- 5 will expand the ring S within the flange 7'; said spreadlng levers having their free ends pressed together, or in saidinward direc such that whenever left free to its own 210- tion, driving connectionlwill beestablished between the shaft 5 and the pulley 7 or 7 but this driving connection will be frictional in. its nature and adapted to overcome such amount of load imposed upon the drum asis predetermined by the adjustment of the springs 8 To release this friction clutch, levers 8 of each pair carry at intermediate points in their length, rollers 8 bearing upon the correspondingspreading wedge 9, which slides axially in the frame 8 of the clutch, and each of which is under control of its shipping lever 11 on the shaft 10 as already explained so that when either shaft tro-ls the arm 11" on the rock shaft 10 of the other clutch. I

Inasmuch as the clutches 8 and 8 are at different ends of the drums, the spreading wedges 9 will move oppositely in developing identical effects in the respective clutches; in other words, they are reciprocal in their actions when operated by the single controlling member 12, and one drum is thrown into driving connection as the other is thrown out. By determining the length of the connection between the rock arm 11 and the arm 11 as, for instance,

by adjusting the turn-buckle ,11" which forms part of the connecting member 11, the exact relation of the opposite movements of the spreading wedges 9 can be determined; they can even be so related that when the controlling connection 11 is in an intermediate position both drums will be free to respond to tension on the rope, and thus pay out any amount of rope that may be required in distributing it to the guide sheaves by which its direction will be controlled.

Reciprocat braking.

As will be seen from the drawings, the single control member 15 is in the form of afoot lever, and the single control 14: for thebrakes is a rock shaft upon which said foot lever is mounted, said rock shaft being provided at points properly related to the brake'bands 13, 13 with'arms 14*, each receiving one end of one of the brake bands, the other end of the brake band being suitably anchored as at 13 in a known manner.

By positioning the arms 14 upon theshaft ll at 90 apart and reversing the brake hands so that the anchoring end is presented horizontally in one instance and vertically in the other, while the tightening end meets arm 14 vertically on one brake and horizontally on the other, it is obvious that rocking the shaft 14: in one direction will tighten the brake on one drum and loosenit upon the other, and vice versa. It is also obvious that by properly adjusting the lengths of the brake bands the shaft 14 may assume an intermediate position, in which both drums would be free.

Coordination of bra/c2 12 g muldm'm'ng means.

vVith the described reciprocally acting single controls for both the driving clutches and the brakes, and particularly by using one-man controlling means such as hand wheel 12 and foot lever 15, or their equivalents, it will be seen that either drum may be thrown into driven relation to the main shaft,

while the other is left free to pay out rope in response to the winding action of the driven drum, while both brakes are held re leased to leave the drums free to respond to the influences acting upon them; or either drum may be arrested in its rotation by application of the brake thereto, as for instance, when the driving connection is to be released, or when it maybe desired to retard the unwinding action of one drum while permitting the driving action of the other drum.

An important feature of the present invention resides in the fact that each drum has a friction drive with means for prede-' terniining the load which it will carry, and. this friction drive is so constructed that driving connection between the shaft and the friction member is distributed over a plurality of circumferentially spaced points, namely at an intermediate point in the friction member where it is firmly anchored to one end of the clutch frame, and at the two circumferentially removed fulcruining posts which are carried by the other end of the clutch frame and upon which the spreading levers are fulcrumed; and these fulcruming posts are separately and individually adjustable to insure the desired coaction between the friction member and the drum. This enables the machine to be set for a predetermined amount of work and insures yielding under an overload that will avoid breakage in case an excessive resistance is encountered. It also insures a distribution of drive between the friction member and the drum which avoids chattering and other destructive influences which are particularly important in an arrangement that provides for slipping under an excessive load.

Another important feature of the present invention resides in the particular arrangement of the clutch actuating and controlling mechanism which, while highly efficient in establishing a unitary control over a dual arrangement of reciprocally acting winding drums, is peculiarly adapted for use in a machine designed primarily for installation in the restricted spaces (in many instances not over three and one half feet in height) in under ground workings; that is to say, by roviding a pair of wedges moving in the direction of the axis of the shaft and in opposite directions in the sense that one moves to clutch-applying position as the other moves to clutch-releasing position and vice versa, by controlling these clutches through the medium of shipping levers swinging in planes parallel to the axis of the shaft from rock shafts disposed transversely across the ends of the respective drums; by providing a pair of vertically extending controlling arms on the outer ends of these transverse rock shafts; and by having a single thrust shaft extending longitudinally of the machine or parallel to the driving shaft, connecting it with the pair of controlling arms, and then providing means which will afford the necessary power of control over the thrust bar, a very eflicient and reliable control can be exercised over the wedges without the necessity of extending leverages objectionably beyond the overall dimensions of the winding engine or requiring increased space for the admission of the engine into the mine working. By this arrangement the reciprocally acting wedges may be held in neutral position permitting both drums to idle; by providing the turn buckle or equivalent means for changing'the relation. between the wedges and said body the spacing apart of the wedges and their initial relations to their controlled clutches may be changed at will; and by providing the adjustable stops upon the thrust rod the opposite throws imparted to the wedges may be regulated at will.

Eaclradjustable frictional driving clutch 8 will preferably be enclosed by a housing 8" (shown only at the left hand end of Figure 1), which will avoid tampering with the adjustment by irresponsible operatives, and in order to maintain lubrication of the enclosed parts a suitable lubricator 8 may be employed.

We claim:

1. In a winding engine, a pair of winding drums, a pair of clutches for driving said drums, and means for controlling said clutches comprising oppositely acting clutch levers, a thrust shaft connected to throw said levers, and means for imparting controlled longitudinal movement to said thrust shaft comprising a toothed segment lever connected with said thrust shaft and a pinion shaft having its teeth meshed with the teeth of said segment lever.

2. In a winding engine, a pair of winding drums, a pair of clutches for driving said drums, a pair of oppositely presented clutch controlling wedges acting in the direction of the axis of the drums and reciprocally in relation to their clutches, throwing one clutch out as the other is thrown in and vice versa, a pair of shipping levers located at the ends of the drums and swinging in the longitudinal direction of said axis, a pair of rock shafts upon which said shipping levers are mounted, extending transversely of the said axis and across ends of the drums, a pair of controlling levers also on said rock shafts, a thrust rod extending parallel to the axis of the drums and connecting said controlling levers to force the wedges to move in unison but in opposite relations to their controlled clutches, and means for changing the length of the thrust rod between the controlling levers to vary the relative positions of the wedges.

3. In a winding engine, a pair of windingdrums, a pair of clutches for driving said drums, a pair of oppositely presented clutch controlling wedges acting in the direction of the axis of the drums and reciprocally in relation to their clutches, throwing one clutch out as the other is thrown in and vice versa, a pair of shipping levers located at the ends ofthe drums and swinging in the longitudinal direction of said axis, a pair of rock shafts upon which said shipping levers are mounted, extending transversely of the said axis and across ends of the drums, a pair of controlling levers also on said rock shafts, a thrust rod extending parallel to the axis of the drums and connecting said controlling levers to force, the wedges to move in unison but in opposite relations to their controlled clutches, and adjustable stops controlling the oppositely directed longitudinal movements of said thrust rod.

Signed at Syracuse, in the. county of Onondaga, and State of New York this 21st day of April, 1919.

ALEXANDER PALMROS. EDWIN M. MACKIE. GEORGE A. HEALEY.

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