US1010297A - Elevator. - Google Patents

Description

J. H. MICHENER JR.

ELEVATOR.

APPLICATION FILED SEPT. 4, 1909.

Patented NOV. 28, 1911.

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ELEVATOR. v APPLIOIATION FILED SEPT. 4 1909. I

1,010,297. Patented 0 v. 28, 1911.

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J. H. MIGHENER, JR.

ELEVATOR.

APPLICATION FILED SEPT. 4, 1909.

Patented Nov. 28,1911.

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ELEVTOR. APPLICATION FILED-SEPT. 4, 1909.

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Patented Nov. 28, 1911.

J. H. MIGHBNER, JR- ELEVATOR.

I APPLIGATION FILED SEPT. 4, 1909. 1,010,291 Patented N0 v.28,1911.

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' cmwe UNITED STATES PATENT oEEmE.

JOHN H. v11/111CI-HilNIIilR, 5-3., OF NEW YORK, N. Y., 'ASSIGNOR TO MICHENER- STOWAGE COMPANY, OF NEW YORK, N. Y., 'A CORPORATION OF NEW YORK.

ELEVATOR.

T 0 all whom it may concern:

Be it known that I, JOHN H. MICHENER, Jr., a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Elevators, of which the following is a specification.

This invention relates to elevators and particularly to that class thereof, portable or otherwise comprising blades or buckets on an endless carrier adapted for raising bulk material such as coal, grain and the like.

The present invention has been developed particularly with reference to adaptability to raising coal from barges to the coaling ports of shipsbut it is obvious that it is equally adapted for handling a large variety of bulk material and while I have illustrated and described my improvements in their particular adaptability to the handling of coal I do not restrict my invention to such narrow use.

The object of my improvements is to furnish means simple in construction and action, mobile in adaptability and efficient in use for raising and discharging bulk material.

In the drawings accompanying this specification I have illustrated one embodiment and which may be-the preferred embodiment of my improvements. Therein Figure 1 is a sectional side elevation of my apparatus with the telescopic member retracted.

" Fig. 2 is a similar View to that of Fig. 1 but with the telescopic member extended. Fig. 3 is a side elevation on an enlarged scale of the upper end of my apparatus. Fig. 4 is a sectional side elevation on the same scale as Fig. 3, of the lower end of my apparatus. Fig. 5 is a rear side View of a detail, on a still larger scale, of a locking device for the telescopic member. Fig. 6 is an end view corresponding with Fig. 5. Fig. 7 is a cross sectional view on line 7, 7 of Fig. 4. Fig. 8

is an end elevation corresponding with Fig.

into the coal port of a ship. Fig. 12 is a rear elevation illustrating means for operatsaid motor 15.

Specification of Letters Patent. Pgptenbed Nov, 28, 1911.

Application filed September 4, 1909. Serial No. 516,291.

. My improvements comprise in general a main member 2, a telescopic member 3 slidable therein, an endless chain 4 carrying buckets 6, said chain being supported on sheaves or sprockets 80, 90, 10 and 11 in main frame 2 and 12, 13 in telescopic member 3. Said sheaves of Irain frame 2-and telescopic member 3 are so located relative to each other as to maintain an even length or tension on chain 4 irrespective of the relative positions of said members 2, 3. Power for driving the apparatus'is preferably installed in the upper part of main member 2 and may comprise a motor 15 or other suitable means. Electric wires 32 from some suitable source of power, not shown, lead to starting box 33 conveniently located on the outside of frame 2 (Fig. 11). From this starting box wires, not shown, may lead to Motor 15 is illustrated as provided with worm 16 engaging worm gear 17 on cross shaft 19 (see Figs. 1, 2, 9 and 10). On the outboard left hand end (Fig. 10) of shaft 19 is loosely mounted, sprocket 20. Said sprocket is connected to and drives sprocket 21 through chain 22. Sprocket 20 has clutchmember 201 formed thereon for engagement with clutch member 202 slidably mounted on shaft 19 and key 190 therein (Fig. 3). Clutch member 202 may be thrown into and out of engagement with sprocket clutch member 201 by means of a suitable lever not shown, through rod 24 and bell crank yoke 25.

Referring now more in detail to the construction of my apparatus, While in my general description I have mentioned only one endless chain 4. I preferably use two such chains 4 and 5 between which I support blades or buckets 6, (Figs. 7- and. 8). While said blades 6 may be of any one of a variety of cross sections I preferably bend their edges forward in the direction of their travel, Fig. 4, to increase their carrying capacity.

Main member 2 is of rectangular boxlike form having a lower open end for the free movement in and out thereof of telescopic member 3. At its upper end main member 2 has an overhangir'fi g' portion 200 in which v is supported shaft801 carrying sprockets 8 and 80 for chains 5 and 4 respectively. Said overhanging portion 200 also provides discharge port 203 for the material lifted by' blades 6. Said main member 2 has rails 26" (Fig. 7) for guiding engagement with rolls 27 of telescopic member3, and rolls 28 at its lower end for guiding engagement with frames 30 of said telescopic member 3. By these means said telescopic member is suitably supported for free in and out movement in main frame 2. The several sheaves of main member 2 and of telescopic member 3 are relatively so arranged as. to maintain the principal runs of chain as 40, 41, 42, 43 ofmaintained at uniform tension and in operable position on their several sprockets. Telescopic member 3 is provided with a floor or pan 31 over which the coal is scraped upwardly onto floor 210 of main member 2 and thence upwardly and out through port 203. Sheaves 13, 14 at the lower end of telescopic member 3 are supported on inreaching studs 130, 140 respectively so as'to allow freedom for .coal therebetween.

Said sheaves are provided with toothed disks 131, 141 respectively for loosening up the mass of coal to allow freer access of blades 6 thereto.

For lifting telescopic member 3 from its outward position (Fig. 2) to its inward p0- sition ig. 1) I employ the following means. Pivoted at 34 in member 3 (Fig. 4) is shoe 35 for engagement with the upper face of lower run 43 of chain 4. The lower face of said run 43 rides on guide 16. Cam lock 37 is pivoted at 36 in member 3 above said shoe 35 and is operable by means of lever 38 thereon to clamp run 43 of chain 4 between shoe 35 and guide 16. When so clamped, run 43 of chain 4 in its upward movement carries telescopic member 3 therewith Upon releasing lever 38 cam 37 is retur to its inoperative position by means of spring 39 of arm 93 of said lever 38. For holding. said telescopic member 3 against outward movement relative to member 2, from the position for instance of Fig.

1 to thatof Fig. 2, I provide an automatic catch shown'in detail in Fi s. 5 and 6, and more fully in relation to sai frames 2 and 3 in Fig. 4. Therein toggle arms 62, 63 are pivoted at 620, 630 respectively in nose 64 of frame 2. The free ends of said toggle arms 62, 63. are positioned and adapted for engagement with upper and lower side rails 30, 30 of telescopic member 3. Said arms 62, 63 are urged to engagement with said rails 30, 30-by meanslof spring 67 in coac: tion with rods 68, 69 pivotally connected with said arms. Arms 62, 63 maybe moved to their inoperative positions, shown in dot' .To provide for this contingency I furnish table 81 extending entirely across within member 2 and having end 82 thereof reach: ing around shaft 801 of sprockets 8 and 80. Said table is slotted at 84, 85 to admit said sprockets. At 83 said, tablereaches around sprocket shaft 92.

For conveniently handling and adjusting my improved apparatus I have provided severaldevices which I will now proceed ,to describe. For hoisting the apparatus into position I have mounted a winding drum 50 on shaft 51 in the upper part of member 2 and parallel wit-hworm gear shaft 19. On said shaft 19 is loosely mounted sprocket 56 having clutch member, 57 thereof for engagement with clutch member '58 slidably mounted on shaft 19 and key 59 thereof. Shaft 51 has sprocket 52 fixed thereon and is connected to and driven from sprocket 56 by chain 54. Clutch member 58v on shaft 19 may be operated in the usual way by lever mechanism indicated in a general way by 60. To prevent rotation of drum 50, When. I

clutch 57, 58 is disengaged, I provide ratchet 76 fixed on shaft 51 and pawl 77 pivotally mounted on bracket 78 of frame 2 for engagement with said ratchet. Drum 50 is provided with friction clutch mechanism indicated at 53, slidably mounted on shaft 51 and key 55 therein. Said friction clutch mechanism may be operated in the usual-way by lever mechanism indicated'in' ageneral way by 65. The operating levers of mechanism 60 and 65 are Ibcatedlon the outside of frame 2 conveniently near the starting box 33 of motor 15. Rope 45 of winding drum 50 passes out of frame 2 through slot 44 (Fig. 10) and thence over suitable blocks as-46 (Fig. 11) one of which, not shown, is

Concentric with drum shaft 51 and at each side of frame 2, I pivotally attach arms-47, i

ably A shaped having two feet 660, 660 forengagement with the ships side. Said struts fastened atza proper height to ship 100.-

of frame 2 from ship 100 I provide strut 70 supported in box 74 p-ivoted on axial .shaft 720 of pinion 72 on the side of frame 2 (Fig. 11). Said strut 70 is provided with teeth 71 for engagement with the teeth of .pinion 72. Said pinion may be actuated by the usual crank 73. Said crank is provided with a stop pin 740 for engagement with block 74 to hold said crank against turningafter strut 70 has been set in a desired position. Strut 70 when not engaged may be removed or folded up against the side of frame 2. A chute 86 pivotally supported on the projecting ends of shaft 801 may be provided to lead the coal from port 203 of member 2 to hopper 101 of ship 100.

'The operation of my improved mechanism is as follows: Assuming the machine to be lying on its back with overhanging portion 200 pointing upwardly and with telescopic member 3 retracted, block 46 is hooked into the eye provided therefor and rope attached to drum 50 (Figs. 10 and 11). Clutch member 202 being out of en-- gagement with clutch member 201, clutch member 58 being in engagement with clutch member 57, and clutch 53 being in engagement, motor 15 is started. This, through worm and gear 16, 17 respectively, sprocket 56, chain 54 and sprocket 52, drives shaft 51 and drum 50 thereon. Whereupon rope 45 is wound onto said drum and the head end of the machine lifted until hook 49, one

end of which is engaged with eye 61 on ship 100, is hooked'into bail 478. Motor 15 is now stopped and struts 66, 66 adjusted against the ships side. Then clutch 53 is chains.

pivotally about shaft 51 as an axis. Strut' disengaged, rope 45 slacked and the weight of the machine sustained by hook 49. Clutch 53 may now be returned to engagement and clutch 57, 58 released from engagement preparatory to starting conveyer The machine is then free to swing 70 is then adjusted against the ships side and by means of crank 73, pinion. 72 and rack teeth 71, the lower end of the machine is swung outwardly in position over the hatchway 87 of coal barge 88. Thereupon hand lever 79 is moved toward its dotted position (Fig. 5) and telescopic member 3 is allowed to descend for engagement with the coal in barge 88 (Fig. 11). By proper manipulation of said lever 79 governing toggle arms 62, 63, member3 may be kept under full control and lowered as slowly as desired. When said telescopic member 3 has been lowered to its Working position I preferably throw lever 79 fully to its dotted position (Fig. 5) whereby toggle arms 62, 63 are held in inoperative. position. Clutch .end of said member.

202, 201 is thrown into engagement and motor 15 started. 'Whereupon through sprocket 20, chain 22 and sprocket 21, chains 4, 5 and buckets 6, 6 therebetween are started moving in the direction oftheir sevmain member 2 and thus outward through port 203 of overhanging port-ion 200. The coal then falls through chute 86 into hopper 101 and thence through the ships port hole to the bunker. As the coal is removed from the barge by the machine telescopic member 3 automatically sinks its nose by gravity deeper and deeper into the coal in the barge thereby always working at 'high eificiency. Also while said telescopic member 3 is thus mov ing outwardly from main member 2, chains 4, 5 constantly maintain their working rela tion to their supporting sprockets, and are kept constantly at a uniform tension by my improved arrangement, fully described above herein. When telescopic member 3 has dug its way to the bottom of the barge or to the extent of its travel, toggle arms 62, 63 are thrown into their operative posit-ions by means of lever 79 and lever 38 is operated to cause cam 37 to press shoe 35 against run 43 of the conveyer chain; said chain is thereby clamped to member 3 and which member is thereupon retracted by said chain to any desired height. Lever 38 is thereupon released, chain run 43 freed and member 3 is prevented fromfalling by toggle arms 62, 63. Barge 88 may now be shifted lengthwise or my machine shifted crosswise, by means of strut 70, to present a fresh portion of the coal pile. Toggle arms 62, 63 are thereupon released and member 3 is lowered to its work. Lever 79 is thereupon thrown fully to its dotted position of Fig.

A highly useful and novel feature of my improved apparatus is its ability to auto matically retract member 3 when overloaded or congested. It frequently happens that when said member 3 has dug its way downwardly into the coal pile that the walls of the cavity thus made cave inand precipitate a mass of coal onto and about the lower This immediately causes more or less'congestion atsaid lower end, particularly where chains 4, 5 pass onto sheaves 13, 14, or tends to jam the en trance where the conveyer blades enter over floor 31. This jamming acts exactly as does clamping shoe 35'and causes the conveyer to pick up said member 3 and lift it free of the congestion, whereupon, toggle arms 62, 63 being in inoperative position, telescopic member 3 slides downwardly and blades 6, 6 proceed upwardly with their loads.

Another phase of the automatic retracting feature of my improved apparatus is shown in Figs. 13, 14 and 15. In Fig. 13 the telescopic member is shown with its lower end more deeply immersed in the coal pile than shown, for instance, in Fig; 11,

I and with that portion of the coal at 120 and thereby freed from said coal pile to ,vented from returning downwardly after pass upwardly with run 400 of the conveyer chain. Then if the caved in portion 120 be of sufficient height the succeeding buckets 601, 602 will successively engage the coal pile as wall 250 withdraws upwardly with telescopic member 3 thereby allowing the coal to fall about said buckets, Fig. 14.-

Said telescopic member 3 then continuingv its upward movement, will turn buckets 601, 602 about sprocket 13 until itfrees itself fully from said coal pile, Fig. 1-5 and will then again proceedto dig its way. downwardly. If desired, at the time said telescopic member starts to retract from the caved in coal pile, lever 79 may-be thrown from its dotted line position to its full line position, Fig. 5, and said telescopic member will therefore be automatically prehaving freed itself from the pile, Fig. 15,

until the operator chooses to release it forsuch downward movement. The successive positions of the telescopic member relative to the congested blades, as 600, 601, 602 and 603, may be easily read against horizontal guide line A A. Said automatic retracting ability of my improved apparatus is due to the fact that said telescopic member is mounted to slide upwardly in the main member without encumbrance and therefore follows the path of least resistance when an obstruction occurs.

When the barge has been unloaded toggle arms 62, 63 are thrown into operative positions,-clamp, shoe 35 thrown into action and member 3 retracted to its inward position.

'Motor 15 is then stopped, clutch 201, 202 disengaged,-clutch 57 58 thrown into engagement and the motor again started. This causes rope to be wound onto drum thus hoisting the machine free of hook 49. Strut may then be removed and the machine lowered and stowed for future use.

I claim: I v

1. A portable elevator comprising a main member, a telescopic member slidable therein, an endless conveyer supportedjfor movemeans for preventing-outward movement of the telescopic member relative to the main member and means for engaging and disengaging said automatic means outward movement.-

3. A portable elevator comprising a main member, a telescopic member slidable therein, an endless conve'yer supported for movement within the main member and the telescopic member, means for actuating the conveyer and means for locking the conveyer to the telescopic member for retracting said telescopic member within said main member.

4. A portable elevator comprising a main member, a telescopic member slidable therein, an endless conveye-r supported within the main member and the telescopic member, means for actuating the conveyer, means for retracting the telescopic member and automatic means for preventing outward movefor preventing ment of the telescopic member relative to v the main member.

5. A portable elevator comprising a main member, a telescopic member slidable therein, an endlessconveyer supported'within the main member and the telescopic member, means for actuating the conveyer and automatic means for preventing outward movement of the telescopic member relative to the main members 6. A portable elevator including in combination, a main member, a telescopic member slidable therein, an endless conv'eyer having blades thereon, supported for movement within the main member and the telescopic member, means carried by the telescopic member for automaticallymaintaining said conveyer at uniform tension, said telescopic member mounted for free upward movement in said main member to permit said telescopic member toretract automatically when a *downwardly moving blade therein encounters a resistance in excess of the weight of said telescopic member, automatic means for preventing outward movement of said telescopic member relative to said main 1 member, when said downwardly moving blade is freed from said excess resistance and means for actuating-the conveyer.

7. Aportable elevator including in combination, a .main member, a telescopic member slidable therein, an endless conveyer having blades thereon, supported for movement member, means carried by the telescopic Jwithin'themainmember and the telescopic .1'1...

iniseid main -imember to permit said tele 5 scopic memberio retract automatically. when a! downwardl moving blade, therein en'- counters a res stance in excess of the weight. of saidtele'sc'o'p c member, automatlc means- J for'preventin'gfoutward movement. of said 10. telescopic lmemb'er relative to said main mejniber when said downwardly moving 'blztde is freed from said excess resistance, means forlengaging and disengaging said automatic mee'psfor preventing said outward movement and means for actuating the conveyer. c 5 1,8. A portable elevatorco'mprising a main member, a) telescopic member slidable thereiii, an endless conveyer comprising four paraljlel runs supported on "sprockets revol'ubly fixed in opposite ends of said telescopic -member and on other. sprocket-s revolubly fixed in opposite ends of the main member,

manually operable means on the telescopicmember for locking said -'conveyer to said telescopic memberfor retracting the tele scopio member'and meansfor actuating the conve er. p f

9. portable'eleyator comprisin a'mainV; member, a telescopic member slidab e there-1 in, an endlessconveyer comprising fourlparallelruns sizpported'on sprockets revolubly fixed in opposite ends of said telescopic member' and on other sprockets revolubly fixed in opposite ends of the main member, means fo'rgripping the oonveyer to the telescopic member for retractingthe telescopic member and means for actuating the ,'conveyer. I Signed this 13th day of August 1909 100- fore twosubs'cribing wltnesses.

Witnesses: CHAS-W. LA RUE, WILLIAM J. Comma.

'JOHN H. MICHENER, n, I

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