US989143A

US989143A - Telescopic ashes-elevator.

Info

Publication number: US989143A
Application number: US51860809A
Authority: US
Inventors: Fred Grotenrath
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-09-20
Filing date: 1909-09-20
Publication date: 1911-04-11
Anticipated expiration: 1928-04-11

Description

P. GROTBNRATH.

TELBSUOPIO ASHBS ELBVATOB.

APPLIUATION FILED SBF120, 1909.

Patented Apr. 11, 1911.

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F. GROTENRATH. TELEsooPIo arms ELEvAToR.

APPLICATION FILED SEPT. 20, 1909.

Patented Apr. 11, 1911.

2 SHEETS-SHEET 2.

FRED GROTENRATH, OF MILWAUKEE, WISCONSIN.

TELESCOPIC ASHES-ELEVATOR.

Specification of Letters Patent.

Application filed September 20, 1909.

Patented Apr. 11, 1911.

Serial No. 518,608.

To all whom 'it may concern:

Be it known that I, FRED GROTENRATH,

of Milwaukee, Wisconsin, have invented a Telescopic Ashes-Elevator, of which the folto say, the upper end can be raised and lowered so as' to be withdrawn completely into the vault when not in use, the opening in the sidewalk being closed by a trapdoor or cover-plate. The structure of such elevators as heretofore constructed has been such that the sliding members which support the top are necessarily so long that in lowering them they strike the bottom of the ash-pit, and in vaults which provide limited headroom between the floor and sidewalk, it is not possible for such construction in many cases to give them a suiiicient elongation to elevate the ashes to the necessary height in order to dump them directly into wagons. Hence in such elevators, where the headroom is limited in order to give them proper extension, it becomes necessary to make a deep ash-pit below the floor to receive the lower ends, and this becomes clogged with ashes so as to interfere with the lowering of the top.

The object of this invention is to obviate this disadvantage, and to provide with a head-room however limited beneath the sidewalk an elevator extensible to any height, without lowering the floor-level; and in particular to so arrange it that the lowering of the elevator cannot possibly be interfered with by the presence of the ashes in the pit.

My invention comprises in general a pair of vertical sliding-posts which support the elevator-top, guides for the intermediate portions of said posts, and tubular sockets 50-which are set in vertical holes dug below the floor to whatever depth is necessary in order to accommodate said sliding-posts when the elevator is collapsed. A special feature of this construction is the raising of the upper ends of said tubular sockets to a point above the limit of the ash-pile, whereby the ashes are prevented from entering the tops of said sockets; and I furthermore provide against ashes entering said sockets by a top-closure for each socket having a central opening therein neatly fitting the post which slides up and down in said socket.

My invention consists further in the constructions and combinations which are hereinafter described and particularly set forth in the claims accompanying this specification.

The nature of my invention will best be understood from a consideration of the accompanying drawings, which illustrate the most improved form thereof, and herein- Figure 1 is a front elevation of the elevator collapsed, with the sidewalk, trap-doors, floor, ash-pit and tubular sockets shown in longitudinal section; Fig. 2 is a similar view of the elevator extended, the lowerfportion of the sockets being omitted; Fig. 3 is a longitudinal section through the elevator at one side of the belt, in the position of Fig. 2; Fig. 4 is a side elevation on a larger scale of the lower end of one of the posts and the upper end of the corresponding socket (shown in section) and parts accessory thereto; and Fig. 5 is a transverse section through the same, taken on the plane 5.

In these drawings the same part is designated by the same reference-letter or numeral in each figure.

The basement-floor is represented at a, the ash-pit at b, the sidewalk at c, the a erture therein at l through which the as les are elevated, and the trap-doors covering such aperture at e; the parts above named being shown merely for the purpose of illustration, and being, of course, subject to differences in form, position and dimensions in different buildings.

Between the ash-pit and sidewalk is erected a supporting-frame of four posts #the lower ends of which may rest upon the floor or ash-pit, and the upper ends may be secured in fixed position by a pair of anglebars g which span the opening d. Between these frame-posts is mounted the slidingframe which supports the elevator-top, the same comprising two vertical sliding posts h, connected near their upper ends in rigid relation by cross-bars z', y', and the lower ends of which are received in a pair of vertical tubular sockets c, which are set, as clearly shown in the drawings, in holes or wells bored below the floor of the ash-pit for this purpose. 7c may be conveniently made of ordinary iron piping, and it will be noted that the sockets are considerably larger in internal diameter than the diameter of the posts, so as to give room for racks Z, one on each post, which serve as means for raising the frame and ai'e engaged by a pair of pinions fm, mounted on a shaft n turning in bearings n, which are carried bythe fraine-posts f; and the shaft a projects at one end beyond the bearings and carries on said projecting end a wormgear 0 (incased), engaged by the worm 0 which is turned by means of a crank 02, or by power if desired. It will be observed that the upper ends of the sockets are made to rise a considerable distance above the ashpit, and they vare closed with caps c, through holes in the `center of which pass the posts Z; this prevents ashes from enteringthe sockets and from any interfering with the raising and lowering of the top-frame. Also, the posts ZL are provided upon their :lower ends with closed pistons h carrying 'rubber-gaskets 71,2, which hold the ends of the posts centrally within the sockets :and prevent .any-dust or fragments which might get through the holes in the caps 7c into the sockets 7c from falling below the pistons; so that on raising the posts such accumulation can easily be cleaned out.

Upon the upper ends rof the posts ZL are mounted a pair of bearing-boxes jo which carry the upper shaft g ofthe elevatoron Vwhich is `mounted a sprocket-wheel Q', and

directly below is the elevator boot r in which turns the corresponding sprocket-wheel s upon the driving-shaft s, which turns in bearings s2 carried by the sockets 7s, yand said shaft may be driven by means of a sprocketwheel s3 mounted on one end and a countershaft t `carrying a driving-pulley t and a sprocket-wheel t2, andthe sprocket-wheels s3 and Z2 being connected by the driving chain 153. The lower portion of said chain is protected by a vlook a rising above the ashpit a suflicient distance to prevent ashes from getting in at'the top'thereof.

rPhe upper ends of the 'posts ZL are `guided by means of two pairs of flanged rollers u mountedupon vstub-shafts a carried by the frame-posts lj, vas shown, said Vrollers being of proper form to allow the racks Z to pass between them. The lelevator-belt or chain o, mounted upon the two sprocket-wheels g ands?, carries the usual elevating-buckets v, the form of lsaid chain constituting no part of this. present invention. .Over the upper end ofthe vchain Land wheel g Vmay be mounted the usualhood w, upon which is v mounted a folding-chute x, ybut these ele- Y ments also are customary accessories and Both the posts 7L and the sockets y v Having thus described my invention, what Y I claim as new and desire to secure by Letters Patent is:

l. ln an ashes-elevator, the combination with the top-frame of a pair of vertically moving posts supporting it and tubular sockets receiving said post-s, said sockets Vbeing set in and projecting belowftlie floor of the ash-pit.

2. In an ashes-elevator, in combination with a top-frame -h-avinga 'vertically sliding post -supporting it, a vertical socket set in the floor `of the ash-pit andtelescopically receiving said post, the upper end ofsaid socket rising above the floor of the ash-pit to a height su-ficient to clear the ashes piled therein.

3. A telescopic ashes-elevator comprising in combination with supporting means, a top-frame carrying a shaft and wheel over which passes the elevator lchaimanash boot immediately below said wheel, a second shaft carrying a wheel within said ash-boot, an elevator belt mounted on the two wheels and carrying means for elevating materials,

means for driving one of said shafts, and a` vertical socket set vin 'and below thel floor of the ash-pit; said top-frame having'a ver- Y tical post the lower end of vwhich is received in said socketand guided thereby; and means for raising .and lowering said post.

4. A telescopic ashes-elevator comprising, in combination, a supporting frame, a rising and falling top-frame having a pair o-f vertical posts, means on .said ,supporting frame for -slidably guiding said posts, a beltwheel rotatably mounted on the upper yend of said top-frame, an ash-boot, asec'ond beltwheel rotatably mounted therein, an elevator-belt passing around said wheels and carrying means for elevating materials, means for driving one of said wheels, a pair of vertical sockets receiving the-ends of said posts and vextending above the 'limit'ofthe y ash-pile, and meansfor Vraising and 'lowering said posts.

v5. A telescopic ashes-elevator comprising,

in combination, asupporting frame, :a rising and fallingtop-frame having a pair of and means for raising and lowering said posts.

6. A telescopic ashes-elevator comprising, in combination, a supporting frame, a rising and falling top-frame having a pair of vertical posts, means on said supporting frame for slidably guiding said posts, a belt-wheel rotatably mounted on the upper end of said top-frame, an ash-boot, a second belt-wheel rotatably mounted therein, an elevator-belt passing around said wheels and carrying means for elevating materials, means for driving one of said wheels, a pair of vertical sockets receiving the ends of said posts and extending above the limit of the ash-pile, a pair of racks on the respective posts, a transverse shaft mounted on said su porting frame, means for rotating said sha t, and a pair of gear-wheels mounted on said shaft and engaging the respective racks.

7 In a telescopic ashes-elevator, the combination with a top-frame therefor having a vertical post, of a vertical tubular socket set in the floor of the ash-pit for receiving said post, said post being of smaller diameter than the internal diameter of said socket and having a piston on the lower end thereof fitting the bore of said socket, and a removable perforated cap through which said post passes covering the upper end of said socket.

8. A telescopic ashes-elevator comprising, in combination, a stationary-frame, a topframe for said elevator comprising a pair of vertical posts each of which carries a rack, guiding rollers mounted on said stationary-frame intermediately of said posts and acting as guides therefor, a belt-wheel rotatably mounted on the up er end of said top-frame, a second belt-w eel rotatably mounted at a point below said top-frame, an elevator-belt passing over said wheels, means for driving said elevator-belt, a pair of vertical tubular sockets receiving the lower ends of said posts and the upper ends of which extend above the upper limit of the ashpile and the lower ends below the base of the ash-pile, pistons mounted on the lower ends of the respective posts and fitting the bores of the respective sockets, a pair of perforated caps removably mounted on the upper ends of said sockets and through which said posts pass, a transverse shaft rotatably mounted on said stationary-frame and carrying gear-wheels engaging said racks, and means for rotating said last-named shaft.

9. A telescopic ashes-elevator comprising in combination a stationary frame, a top frame having vertical posts with racks, a belt wheel rotatably mounted on the upper end of said top frame, a second belt wheel rotatably mounted on a lower plane, an elevator belt passing over said wheels and having elevating means, means for driving said belt, pistons on the lower ends of said posts, sockets in which said pistons work, and means engaging said racks, and means for rotating such means.

10. A telescopic ashes-elevator comprising in combination a stationary frame, a top frame having vertical posts with racks, a belt wheel rotatably mounted on the upper end of said top frame, a second belt wheel rotatably mounted on a lower plane, an elevator belt passing over said wheels and having elevating means, means for driving said belt, pistons on the lower ends of said posts, sockets in which said pistons work, means engaging said racks, means for rotating such means, and guide rollers for the upper ends of said posts.

1l. Atelescopic ashes-elevator comprising in combination a stationary frame, a top frame havingvertical posts with racks, a belt wheel rotatably mounted on the upper end of said top frame, a second belt wheel rotatabl mounted on a lower plane, an elevator be t passing over said wheels and having elevating means, means for driving said belt, pistons on the lower ends of said posts,

sockets in which said pistons work, means engaging said racks, means for rotating such means, and guide rollers for the upper ends of said posts, said guide rollers bein constructed to allow of the passage o said racks.

In witness whereof, I have hereunto set my hand this 15th day of September, 1909.

FRED GROTENRATH. In the presence of- FRED GROTENRATH, J r., EDWARD GROTENRATH.

Copies of this patent may be obtained for i'lve cents each, by addressing the Commissioner of Patents, Washington, D. C.