US902158A - Hoisting and conveying mechanism. - Google Patents

Description

W. M. MYERS & G. W. HINTON. HOISTING AND CONVEYING MECHANISM. APPLICATION FILED I'BB.17,- 190s.

Patented Oct. 27, 1908.

IN VEN TOR5 W. M. MYERS & G. W. HINTON.

. HOISTING AND CONVEYING MEGHANISM.

APPLIOATION'PILED PEB.17, 1908. 902,158. Patented 0012.27, 1908.

2 SHEETS-SHEET 2.

IN VEN TOR 714.

THE NoRms PETERS co., WASHINGTUN. n. c,

UNITED STATES PATENT OFFICE.

WILLIAM M. MYERS AND GEORGE W. HINTON, OF ST. JOSEPH, MISSOURI; SAID HINTON ASSIGNOR TO SAID MYERS.

HOISTING AND CONVEYING MECHANISM.

the objects of our improvements are, first,

to provide a hoisting and conveying mechanism, which will automatically hoist and conve an suitabl arran ed load receiver land automatically lower the same and WlllCll Wlll cause sald recelver to grapple a load and to dump said load either at any. fixed points,respectively, or to perform said operations'at any desired movable points,

within the operative limits of said mechan-- ism; second, to so construct and arrangethe parts of said mechanism, that the lateral swaying or swinging of the load receiver will be largely overcome; and to provide parts that shall be strong and durable, and also afford every facility for their easy and rapid manipulation, when in operation.

We attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1, is a side elevation of the mechanism, as it appears when in use, certain parts being broken away, to avoid obscurity. Fig.

is an enlarged side elevation of the conveying carriage and of a part of a load receiver, showing said parts in hoisting position. Fig. 3. is the same as Fig. 2, except that the parts are shown in conveying position. Fig. 1. is a vertical section of the emergency carriage stop and its supporting cables, cut on the line Y Y, seen in Fig. 5. Fig. 5. is a top plan of the parts seen in Fig. 4. Fig. 6. is a side view of one of the spring actuated adjusting bolts. Fig. 7. is a longitudinal section cut through the center of an annular shoulder clamp. Fig. 8. is a side elevation of the self-clamping carriage stop showing the parts inclamped position. Fig. 9. is a transverse section of the parts seen in Fig. 8, cut on the line X X. Fig. 10. is a side elevation of a part of the self-clamping carriage stop, showing the clamping parts in unclamped position. Fig. 11. is a side ele- Specification of Letters Patent.

Application filed February 17, 1908.

Patented Oct. 27, 1908.

Serial No. 416,274.

vation of the cable winding mechanism. Fig. 12. is a longitudinal section of the hoisting drum, cut on the line Y Y, seen in Fig. 11. Fig. 13. is a top plan of the cable winding mechanism.

Referring to Fig. 1, towers 1 and 2, form the operative limits of the mechanism and support two cables, arranged on the same level and parallel with each other, one of which is seen at 3; said cables extend down- 5 ward from said towers l and 2 at suitable angles to act as guys or braces, 3, for said towers, and are secured at 3, to the earth or a fixed object, in any thoroughly substantial manner; two turnbuckles 1, one of 7 which is seen in Fig. l are used for tensioning cables 3, respectively, which serve as two rails, or a track, on which carriage 5 is arranged to travel on four transporting wheels, two of which are seen at 5 The hoisting cable 6 and clamp operating cable.

7 and the return portion of cable 7causecarriage 5 to travel on cables 3, as hereinafter more fully described, and the two cable 3 act as a track and prevent lateral swaying of said carriage and of parts depending therefrom.

Referring to Figs. 8 and 9 and 10, will be seen the self clamping carriage stop 8, supported by its two front transporting 35 wheels, one of which is seen at 8*, in Fig. 8 and by its two adjustable rear transporting wheels 8", seen in Fig. 9, said transporting wheels are arranged to travel upon cables 3.- From carriage stop 8 (see Fig. 8,) projects bracket 9, in the outer end of which is the shaft 10, on which is rotatably mounted the friction roll 11 adjustable as to height bysecuring axle 8, at any desired point along slots 8, in the rear end of stop 8, by tightening nuts 8 said adjustment of the height of friction roll l1,'is brought about by the fulcruming of stop 8 on the front wheels, S at the points where said wheels rest on cables 3 respectively, thus forming adjusting means for adjusting the height of friction roll 11. Carriage stop 8 is normally clamped to cables 3 by clamp piece 12, (see Fig. 9,) which is guided by having its upper portion pass through bracket 13 and its lower por-- tion through bracket 14:; said lower portion is encircled by spiral spring 14:- and washer. 15, adjustable upon said lower portion by screw threaded adjusting nut 15*, for properly tensioning spring 14*, the upper end of which is abutted against the lower surface of stop 8 and the lower end presses on washer 15, which presses on nut 15"*, which normally draws clamp piece 12 downward on cables 3 abutted against the inner surfaces of stop 8, thus forming self clamping means for stop 8.

Clamp piece 12 is moved to unclamped position, as seen in Fig. 10, by the two connecting rods 16 and 17, pivotally secured at their lower ends to said clamp piece by pivot 18. The upper portions of said rods are respectively provided with slots 16 and 17 in which respectively operate the studs 16 and 17 secured on the lower and outer ends of T crank 19, secured by pivot 19 to bracket 13, formed with carriage stop 8. The upper end of T crank 19 is formed as an eye, through which is passed the clamp operating cable 7, on which is secured the shoulder clamps 20 and 21, at the rear and the front, respectively of crank 19.

When cable 7 is moved forward in the direction indicated by arrow 7 said cable carries shoulder clamp 20 against, and moves the upper end of T crank 19, the lower end of which carries stud 16 which draws connecting rod 16, and thereby draws clamp 12 upward, overcoming spring 14 while stud 17 travels idly downward in slot 17 a in connecting rod 1.7. It will be seen that when cable 7 is reversely moved, a reverse opera tion of rods 16 and 17 will take place, and clamp piece 12 will be raised to unclamped position by rod 17; thus forming what we shall, for brevity, hereafter term, the unclamping means.

Carriage stop 8 is also provided with the centrally situated buffer 22, (seen in Figs. 8, 1, 2 and 3,) by which carriage 5 is stopped. as hereinafter described.

Carriage 5 is provided with latch hook 23, movably held in normal position as seen, by adjusting bolts 50 and arranged to engage friction roll 11, as seen in Fig. 2 and to be disengaged therefrom by the passage of the large shoulder clamp 24, (secured on hoisting cable 6,) around pulley 25 and against and past the lever 23 of said hook, which is pivotally secured in carriage 5, by pivot 23 thus forming latching and unlatching means for carriage 5. Cable 6 passes from pulley 25 downward and around pulley 30 in load receiver 27 and thence upward over pulley 31 in carriage 5. a In car riage 5 is the pivotally supported L-shaped abutment 26, arranged to abut shoulder.

clamp 24, when the parts are in conveying position as seen in Fig. 3; and thereby sup-v port the load receiver 27, to which the fixed end of cable 6 is secured at 29. The L shaped abutment is rotated to the position seen in Fig. 2, when parts are in hoisting position by its pivotally attached bolt 27, slidably mounted in carriage 5 and actuated by pressure of said bolt against buffer 22, which overcomes the recover spring 28, which is abutted by bolt bearing 27 and presses outward against pin 27. Carriage 5 is provided with eye projection 5 through which clamp cable 7 is passed, and against which shoulder clamp 21 is carried by cable 7, for driving carriage 5 toward carriage stop 8.

Secured to the earth and near tower 2, is the cable winding mechanism 32, composed of the frame sides 33 and 34, (seen in Fig. 13,) secured in their relation to each other by lateral connecting pieces 35, 36, and 37, and having journaled for rotation therein, a hoisting drum 38 and the clamp operating drums 39 and 39, said clamp operating drums are securely mounted on shaft 41, arranged to be rotated by face pulley 42, driven by frictional contacting of belt 43, carried on idle pulley 44; carried by treadle 45, having one end pivotally mounted on power shaft 40 and its free end 45?, adapted to be pressed by the foot of the operator, not shown. Belt 43 is driven by drive pulley 46, secured on drive shaft 40; pulley 42 is also provided with the well known brake strap 47, arranged to be frictionally applied to the surface of face pulley 42 by pressure on treadle 45, at 45.

Treadle 45 is provided with sub treadle 48 pivotally attached to frame side 34 and its inner end is pivotally connected with treadle 45 by connecting rod 48 by which arrangement the pressure of the foot of said operator may be removed from treadle 45 at 45 and instantly applied to treadle 48, thus moving the previously applied brake strap from pulley 42, and applying belt 43 to said pulley. For the convenience and ease of said operator, the fixed foot rest, or step 49 is secured on frame side 34, to which is also secured the bearing brackets 50, in which operates the spring actuated lifting bolt, arranged to lift the inner end of treadle 48 and by said treadle to lift treadle 45 to normal position, (not shown,) with both brake strap 47 and belt 43 removed from contact with pulley 42.

Connected with drum 39, to be wound thereon, and unwound therefrom, is the clamp operating cable 7, the return part 7 of said cable being attached to drum 39 and arranged to be wound in relatively reverse direction to cable 7, whereby as cable 7 is being wound on drum 39 the return part 7*, of said cable will be unwound from drum 39 and vice versa. Clamp cable 7 extends from drum 39, (see Fig. 13,) around pulley 7 (see Fig. 1.,) then upward over small guide pulley 7 on tower 2, thence around pulley 7 on tower 1, thence returns as return cable 7 over large guide pulley 7 thence downward around pulley 7 and thence to drum 39.

Referring to Figs. 12 and 13, loosely mounted on shaft 40, is the hoisting drum 38 from which cable 6 extends around pulley 51, (see Fig. 1,) and pulley 52, on tower 2, around pulley 31, in carriage 5, thence downward and around pulley 30 in load receiver 27, thence upward and around pulley 25, in carriage 5, thence downward and has its fixed end secured in any suitable manner to load receiver 27 at 29, it being apparent that when the cable 6 is wound on drum 38, the load receiver 27 will be hoisted to a position, beneath carriage 5, when the parts are in hoisting position as seen in Fig. 2, and that the winding of cable 6 will cause carriage 5 to travel along and upon cables 3, when the parts are in conveying position, seen in Fig. 3.

On shaft 40, (see Figs. 12 and 13,) is secured the fixed clutch member 53, adapted for engagement by a companion clutch member 54, secured to drum 38, and slidable on shaft 40, into and out of engagement with member 53, by means of the operating lever 55, pivotally attached to lateral connecting piece 35, at 55*, and having its free end portion adapted to spring into a series of notches 55", formed in lateral connecting piece 37, for removably holding the free end of lever ()n the inside of frame side 33 secured the annular V faced brake piece 56 adapted to be frictionally contacted by the annular V shaped channel 56, formed in the head 38 of drum 38 moved into said contact by lever at which point the free end of lever 55 will rest in notch 55.

It will be seen from the foregoing that the operator, (not shown,) has only to move lever 55, from notch 55*, to notch 55, to disengage drum 38 from the described clutch drive, and apply a serviceable brake to said drum, thus affording every facility for the easy and rapid operation of said drum; and that the return of said lever to notch 55, moves said drum to free, disengaged position, as seen in Fig. 13.

Upon cables 3, (see Figs. 1, 4, and 5,) the emergency clamp pieces 57 are secured by bolt and nut 58, which form an emergency stop for stopping carriage 5, within the operative limits of the mechanism, should the said operator neglect to stop said carriage, before said emergency stop is reached.

Adjusting bolt 50, (see Fig. 6,) is provided with collar 50, secured thereon, and is encircled by its actuating spring 50, abutted by bolt bearing 50 and has its movement limited by collar 50 being stopped by bolt bearing 50 Said bolt bearings are formed with plate 50 All of the hereinbefore mentioned shoulder clamps, 20, 21, 21 24, and 24*, are designed to form respective shoulders, on their respective cables, and for easy, rapid, and substantial. adjustment and clamping on their respective cables, are formed as seen in Fig. 7, in which the annular piece 60 is provided with screw threaded projection 61, on which is placed the plurality of tapered and corrugated jaws 62, which are drawn radially toward their common center, by the tapered inner surface 63 of the piece 64, when said piece is screwed on the threaded projection 61, said jaws being adapted to grip or act as a clamp on a cable, in the same manner as a common chuck: pieces 60' and 64 are provided with openings through their centers for the reception of a cable, said openings terminating in bell shape, as seen at 60 and 64 respectively, to prevent injury to said cable.

In the operation of the mechanism, power is applied to power shaft 40', in any well known manner, and while the parts are in position seen in Fig. 1, with lever 45 in normal position, leaving clamp cables 7 and 7, free; the operator, (not shown,) moves lever 55 into notch 55, applying the described clutch drive to drum 38, winding thereon the cable 6, thereby hoisting load receiver 27, until shoulder clamp 24 moves lever 23 disengaging hook 23 from friction roll 11, upon which the parts will automatically assume the position seen in Fig. 3, in the following manner: As the thus released carriage 5, is.

drawn by cable 6 on cables 3 from buffer 22, bolt 27 a is moved by spring 28 from the position seen in Fig. 2, to the position seen in Fig. 3, and thereby moves abutment 26 downward into position to abut shoulder clamp 24, after which the gravity of load receiver 27 draws cable 6 backward carrying shoulder clamp 24 against abutment 26, which supports said receiver while being conveyed by carriage 5. Carriage 5 is drawn by cable 6, along and upon cables 3, carrying receiver 27 to the desired point at which to dump a load therefrom.

It will be seen in Fig. 3, that as carriage 5 is thus drawn along cables 3, eye piece 5 on said carriage is brought against shoulder clamp 21 and thereby draws clamp cable 7 .5 Cable 7 carries shoulder clamp 20 against the upper end of T crank 19, and thereby unclamps stop 8 from cables 3. The continued movement of the described parts, causes stop 8 to travel along and upon cables 3, at a short distance behind carriage 5, until the before mentioned dumping point is reached, where: said stop and carriage, are stopped, by thel following described operation. Said operator, (who has previously placed his foot on step 49, see Fig. 13,) moves his foot from step 49, on to treadle extremity 45 thereby applying brake-strap 47, which, by the hereinbefore described parts stops and holdsi cable 7, carriage 5 and stop 8. Continued winding of cable 6, brings small shoulder clamp 24 (see Fig. 2,) downward and around pulley 30, in load receiver 27 causing said load receiver, to dump its load by cables a.

mechanism which forms no part of this application, and which we therefore deem unnecessary to describe.

As soon as load receiver 27 has dumped its load, the operator, (not shown,) releases drum 38 from its clutch drive, as previously described, thus liberating cable 6, after which said receiver gravitates, and again brings clamp 24 against abutment 26, thereby again supporting said receiver while {the same is being returned, in the following (manner, to any desired loading point, along Said operator presses foot lever 48, thereby applying power to drums 39 and 39 which winds cable 7 and unwinds cable 7, which latter carries clamp 21 (see Fig. 3,) against projection 5 thereby moving carriage 5 on cables 8, and carrying receiver 27 back to said desired loading point. While the before described operations are taking place, clamp 21, on cable 7, moves carriage stop 8 in like manner, and slightly in advance of carriage 5, until the before mentioned loading point is reached, at which time the before mentioned operator removes his foot from treadle 48, thereby removing the heretofore described friction drive from drums 39 and 39 bus relieving cable 7 from strain and T crank 19, (see Fig. 8,) from pressure of clamp 21, after which carriage stop 8 is clamped on cables 3, by the hereto fore described self clamping means. After stop 8 is thus clamped on cables 3, the inertia of carriage 5 and the parts attached thereto, causes said carriage to carry bolt 27 against buffer 22, thereby compressing spring 28, and by said bolt, moving abutment 26 from the supporting position seen in Fig. 3, to the position seen in Fig. 2, thereby releasing clamp 24, thus removing support of receiver 27, which thereafter gravitates to the position seen in Fig. l, or on to any desired load, not shown. The speed of the gravitation of receiver 27 is regulated by the application of the heretofore described brake, operated by lever .35. The described operations are repeated as often as desired.

In cases where the loading and the dumping points are fixed points, cable 7 and its attached clamps 20 and 21 are removed from the mechanism, the self clamping carriage stop 8 is placed on cables 3 at the loading point and emergency stop 57 is secured on cables 3 at the dumping point, in which case the cables 3 are inclined downward from tower 2 to tower l, at a suflicient degree to :ause carriage to gravitate on cables 3 from emergency stop 57 to carriage stop 8.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent is 1. In a hoisting and conveying mechanism, a carriage, two track cables, for said carriage, four transporting wheels, for said carriage, adapted to travel on sa1d track caova/ .1.00

bles, a hoisting cable; provided with a large shoulder clamp and a small shoulder clampsecured thereon; two pulleys mounted in said carriage, and adapted to receive and. carry said hoisting cable thereon, said hoistv ing cable being adapted to have its extremity attached to a load receiver; an abutment pivotally mounted in said carriage; and adapted to have said large shoulder clamp abutted thereby for supporting a load receiver; a spring actuated bolt slidable in bearings in said carriage, for operating said abutment, into and out of abutting position; a carriage stop, secured on said track cables: provided with a buffer adapted to stop said carriage and to operate said spring actuated bolt; a bracket extending from said carriage stop, a friction roll, rotatably mounted in said bracket; a latch lever, pivotally mounted in said carriage; two spring actuated bolts secured in said carriage for movably holding said lever in normal position; a hook on the outer end of said latch lever, adapted to engage said friction roll, for detachably holding said carriage, the inner end of said latch lever being adapted to be operated by said large shoulder clamp, for disengaging said latchhook from engagement with said friction roll, an emergency stop, secured on said track; cables for stopping said carriage, and winding means for winding said hoisting cable.

2. In a mechanism of the class described, two track cables; a carriage, having four transporting wheels, adapted to travel on said track cables, and an eye projection on said carriage; a clamp cable passing through the eye of said eye projection; a shoulder clamp on said clamp cable, adapted to be moved against said eye piece and thereby move said carriage on said track cables, and moving means for moving said clamp cable.-

3. In a mechanism of the class described, two track cables; a carriage adapted to travel on said cables; a self clamping stop detachably secured on said track cables and provided with a buffer for stopping said carriage; a bracket on said stop; an inverted T crank provided with an eye in the upper extremity thereof, and pivotally secured on said bracket, a clamp piece guided in bearings attached to said stop; a spring on the lower end portion of said clamp piece, adapted to normally draw said clamp piece downward on said track cables, and to press said cables againstthe inner surface of said stop; two slotted connecting rods having their lower ends pivotally attached to said clamp piece and their slotted ends slidably and pivotally secured, one on each of the two lower extremities of said inverted T crank; a clamp cable, passing through the eye of said inverted T crank, and moving means for moving said clamp cable.

4:. In a mechanism of the character de- 1:3.)

scribed, in combination, two track cables; supports and tensioning means for said cables; a carriage, adapted to travel on said track; two pulleys rotatably mounted in said carriage; a hoisting cable passing over said pulley and having its extremity adapted to be attached to a load receiver; a carriage stop movably secured on said track cables for stopping said carriage; a clamp cable for operating said carriage and for operating said carriage stop, and operating means for operating said cables.

5. In a mechanism of the character described, a carriage adapted to travel on a track; a stop for stopping said carriage, and provided with a projected, friction roll and a latch lever pivotally mounted in said carriage, and provided with a latch hook on the outer end thereof; adapted to detachably engage said friction roll; two spring actuated adjusting bolts for movably holding said latch lever in normal position, and disengaging means for disengaging said hook from said friction roll.

6. In a mechanism of the character described, a carriage adapted to travel on a track, a hoisting cable and a clamp operating cable,-said cables being adapted to operate said carriage in combination with shoulder clamps, secured on said cables and having corrugated sloped jaws together with two annular screw threaded pieces having bell shaped apertures thereto, and adapted to be screwed together, one of said pieces being adapted to act as an abutment for said jaws, and the other one having asloped interior surface corresponding to and opposing said jaws and adapted to move said jaws toward their common center when said an-- nular pieces are screwed together.

In testimony whereof we affiX our signatures 1n the presence of two witnesses.

WILLIAM M. MYERS. GEORGE IV. HINTON.

lVitnesses:

RICHARD H. GRAHAM, Vroron Sonwmn.

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