US476997A - Henning pneumatic malting drum - Google Patents

Description

(No Model.) Y v 4Sheets-Sheet 1.

F. B. GIBSLER 8v H. SMITH. PNBUMATIG MALTING DRUM.

No. 476,997. Patented June 14, 1892.

Www@ "E (No Model.) 4 Sheets-Sheet 2.

F. B. GIESLBR & H. SMITH. PNBUMATIG MALTING DRUM.

No. 476,997. Patented June 14, 1892.

(N0 Model.) 4 Sheets-Sheet 3.

F. B. GIESLBR 8s H. SMITH. PNEUMATIG MALTING DRUM.

No. 476,997. Patented June 14, 1892.

(No Model.) 4 Sheets-Sheet 4.

F. B. GIESLER 8v H. SMITH. PNBUMATIG MALTING DRUM.

190.476,99?. PatentedJune 14, 1892.

4UNITED STATES PATENT OEEICE.

FRANKLIN B. GIESLER AND HENRY SMITH, OF MILWAUKEE, WISCONSIN, ASSIGNORS TO'THE GALLAND-HENNING PNEUMATIC MALTING DRUM MANUFACTURING COMPANY, OF SAME PLACE.

PNEUMATICI` MALTINGDRUIVI.

SPECIFICATION forming part of Letters Patent No. 476,99*?, dated J' une 14, 1892.

Application filed .Tuly 15,1891. Serial No. 399,574. (No model.)

is a full, clear, and exact description'thereof.

Our invention relates to pneumatic malting-drums; and it consistsin certain peculiarities of construction and combination of parts, as will be fully set forth hereinafter and subsequently claimed. H

In the drawings, Figure l is a vertical longitudinal section through one of our improved dcvices on the line l l of Fig. Fig. 2 is a detail sectional view on the line 22 of Fig. 3. Fig. 3 is an end elevation of the said drum, partly in section, on the line 3 3 of Fig. 1. Fig. 4 is a sectional elevation on the line et it of Fig. l. Fig. 5 is a plan view of the drum supporting and rotating mechanism, partly in section to illustrate details of construction. Figs. 6 and 7 are enlarged sectional views illustrating` details of construction,and Fig. S is an enlarged detail View of an air-gage used with our device. Fig. 9 is a sideelevation of one of our drums. Fig. 10 is asection on line lO l0 of Fig. 9. Fig. 1l is a detail.

A represents a slowly revolving drum in which grain, after having been steeped, is placed for malting. This drum is formed with outer and inner heads at each end, having spaces between each pair of heads, asbest shown in Fig. l. Said heads are formed of rings B C, with annular flanges b D and c c', respectively, projecting inwardly therefrom, the annular flange b having an annular plate B', forming with said flange b, to which it is secured, the outer head at one end, the central opening of said plate being provided with or surrounded by a ring Bintegral with said plate B and projecting on each side thereof. This plate B is provided on its outer surface with radially-disposed strengthening-ribs h2, between which are arranged an annular row of hand-holes h3, bridged by spiders h4, through which pass screw-bolts b5, whose inner ends are secured to closing-plates Z2, secured in place by hand-nuts Zf" on the outer Yends of said bolts h5. The annular flange b has an annular plate B3 secured thereto, forming the inner head of the drum A at this end. The other end of the drum is somewhat similarly constructed, there being annular plate C', secured to the outer flange c of the ring C, forming` the outer head of the drumA at this end, which plate C `has au outWardly-projectng ring C2 (of less diameter than the ring B2 named) surrounding its central opening; but the plate C3, which is secured to the flange c of the ring C and which forms theinner head of the drumat this end, has no central opening. The plate C at this end of the drum is provided with radially-disposed strengthening-ribs c2 on its outer surface, and has an annular row of hand-holes c3, with spiders c4, screw-bolts c5, closing-plates c6, and hand-nuts c7, corresponding to the similar devices on the other end of the drum, except that the row of hand-holes c3 are nearer the center of the drum than the hand-holes b3 referred to.

The interior periphery of the drum is provided with a series of perforated semi-cylinders D D, extending between the inner flanges b c of the rings B C and secured thereto by angular strips d3 d3, which lianges have correspondingly-shaped openings hs cg, so that the said sen1i-cylinders D are open at each end into the spacese e between the double heads at each end of the drum A, the outer flanges h c of the rings B C of said double heads being provided with semicircular openings or hand-holes (l, in register with the semi-cylinders D for ready access thereto, said hand-holes d being provided with pivot-ed covers d', kept in place by any suitable securing devices,. such as screw-bolts on the flanges h c, engaging with hooks or lips on the covers d', and thumb-nuts on said screwbolts, all as shown at d2. The annular plates B3 C3, forming part of the inner heads of the drum A, are each provided with a circular row of openings f2 e2, respectively, the said 95 openings being covered with perforated plates f3 e3, respectively, the covered openings e2 e3 in plate C3 being in line with the hand-holes c3 in the outer head at that end of the drum and nearer the center thereof than the cov- ICJO trl

ered openings f2 f2 in plate B2, which are in line `with the hand-holes b2 in the outer head at the other end of the drum.

E is a central perforated cylinder extending from the plate C3 of the inner head at one end of the drum, longitudinally through the latter to the annular plate B3 at the other end thereof in line with the described ring B2 at said end, being secured to said heads by suitable angle-strips e4 f4 and bolts, as shown, said bolts at one end also passing through a flange on the ring B2, as shown in Fig. 2.

F is a chamber communicating with the passage through ring B2 from cylinder E, and the inner flanged endfof this chamber F is provided W ith a stout rubber packing-ringfl, bent so that one edge bears against the ring B2, while the other edge bears against the flanged endf, to which it is secured by a ring f' and bolts, all as shown in Fig. 7. The outer end of this chamber F is closed by a door F', hinged to said chamber, as shown at f5, and secured When closed by catch f6, all as best shown in Fig. G.

G G represent suitable beds or bases, from which rise bearings g g for cross-shafts G' G', (which shafts may be made in sections with couplings g', if desirable,) said shafts having fast on them Worm-Wheels G2 and pulleys g2 g2, which latter support the drums A and revolve the saine by frictional contact therewith, when the said shafts G' are themselves hereinafter explained.

H is a shaft extending transversely beneath one end of cach drum A, the preferred arrangement being that several of these drums are arranged in transverse line with each other and with the said shaft H extending in a line beneath one end of all of them. Beneath each drum the shaft H carries a sleeve H', loose thereon, in bearings 7L h, said sleeve H' terminating at each end in a Worm H2, one end of this Worin-sleeve ll' being formed with clutch-notches 7L'.

I is a clutch-collar movably secured to the shaft H by a groove and feather t', and having clutch-pins t" at one end for engagement at the proper time with the notches 7L' in the end of the sleeve H', and having, also, a circumferential groove 122 for engagement with the shifting-lever J, pivoted, as shown at j, to the base G.

K represents a tunnel, duct, or passage leading from the source or reservoir of the moist purified air which is to be drawn through the drums A and the grain or malt in them contained, and K' is a pipe or passage leading from the passage K to a chamber L, Which communicates with the passage or opening formed by the ring C2 at the adjacent end of the drum A, the connection between the chamber L and ring C2 being identicalin construction With that already described between the chamber F and ring B2, and illustrated best in Fig. 7, and the outer end of the chamber L is closed by a door L', identical in construction and arrangement With the door F' of chamber F, already described, and illustrated best in Fig. 6.

M' is a pipe or passage leading from the bottom of the chamber F of each drum to a tunnel, duet,'or passage M, which latter communicates with a suction-fan, (not shoWn,) so

that the air maybe thereby drawn through the drums and their contents, as already stated.

N is a damper in the pipe or passage M', one journal n of which damper projects through the Wall of the pipe M' and carries on the outside a pointer or index-linger O, there being a scale O' on the outside of said pipe M'. The shank P of lthis pointer O is provided with an arc-shaped slot p, through which projects a screw-bolt Q, With a thumbnut q thereon to set the damper N to.any desired position to which it has been turned by the handle p' of the said pointer O, whereby the flow of air through the said pipe or passage 1 M' may be regulated.

In our improved drum the moist purified l air from the duct or passage K is drawn y through pipe K' and chamber L into the space e' at the adjacent end of the drum A through the opening of the ring C2, said air first striking against the imperforated central part of the plate C2, forminga part of the inner head at this end of the drum, and being thence deflected to the open ends of the semi-cylinders revolved through their said Worm-wheels, as

D D, surrounding the inner periphery of the I drum and passing therethrough to the space e at the other end of the drum, a portion of l said air entering the end of the drum through the perforated plates e2 and more of it passing into the interior through the perforations 1n the said semi-cylinders D, and that portion reaching the space e being sucked into the interior through the perforated plates f2 in the adjacent inner drum-head, and from all these points being drawn through the grain or malt in the slowly-revolving drum into the central perforated cylinder E, and out through the passage Within the ring B2 into chamber F, pipe M', and duct or passage M to the aforesaid suction-fan. (Not shown.)

In the operation of our drums it happens from time to time that the perforated plates @2]2 become clogged, and to remedy this the openings c2 b2 are provided, which permit the entrance of the operators arm or hand to clean the same and which when not in use are closed, as described, and similarly when access to the semi-cylinders D D is desired. This is obtained through the hand-holes d in the flanges b c of the rings B C of the drumheads, Which hand-holes when not in use are closed by the doors d', as described, and the doors F' L afford ready and convenient means of access to the chambers F L. Hence the interior of our improved drums is always easily accessible to the operator. When for IOO IIO

'any reason it is desired to stop the rotation of any particular drum A without stopping the shaft I-I, this can be instantly done by the described shifting-lever J, and by a movement of said lever and the clutch-collar I in the opposite direction the revolution of said druin can be as quickly again started.

In Figs. 9, l0, and ll are shown the feedepenings and their closing devices used with our improved drums. We prefer to have two of these openings R R, one adjacent to each end of the drum, said openings being each surrounded by a collar r, shaped to tit the periphery of the drum to which it is riveted, from which collar there rises an annular flange r', the latter rising to a uniform height.

R is a door resting on the flange t" and having a lug/Wat one side fitting over a screwbolt r3, which forms the pivot of the door, a thumb-nut r4 securing the door in place, and said door having a catch T5 at its opposite side for engagement with another screw-bolt r6, a thu rnb-nut ri on said screw-bolt serving to securely fasten the said door when it is closed, so that it will not become loosened by the rotation of the drum.

S S represent the preferred form of doors for closing the dumping-openings in our vats, said doors operating in slides 3 s and having suitable fastening devices; but the peculiar construction thereof forms no part of our present invention.

In practice we have found it most convenient to arrange the feed-openings R one adjacent to each end of the drum,as stated,and have found that by reason of the described collar rising to a uniform height grain can be better fed into these openings than if they were simply flush with the circumference of the drum, and as th ey do notrequire frequent open-A ing we prefer to closethem by the pivoted doors described, which forin a very secure lock when the thumb-nut r1 is screwed to place on each door; but for the ready dumping of the contents of the drum we prefer sliding doors at the dumping-openings, which we place in a line intermediate of the feed-openings, and preferably in the central circumferential line of the drum, so that said dumping-openings will be entirely removed from proximity to the revolving and supporting mechanism adjacent to the drum ends, and hence more accessible from beneath, while the feed-openings, being adjacent to the ends of said drum, are more accessible from above in these locations.

lzlaving thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a malting-drum, the combination, with the outer and inner heads at each end separated by spaces and having central openings in the outer heads, one of said inner heads having an imperforate center and the other having a central opening, of peripherally-arranged open-ended perforated semi-cylinders between said inner heads, a perforated een-.

tral cylinder extending from the imperforate center of one of said inner heads to the central opening in the other of said inner heads, annular rows of openings in each of said inner heads, perforated plates covering said openings, annular rows of openings in the outer heads, registering with the said annular rows of openings in the inner heads and with the said semi-cylinders, and closing devices for said openings in the outer heads, substantially as set forth.

2. The combination, with a rotating malting-drum, ofshafts formed in sections and connected together, arranged longitudinally beneath said drum and carrying pulleys on which said drum rests and by which it is ro tated, and worm-wheels fast on said shafts, another shaft arranged transversely beneath said drum and beneath said longitudinallyarranged shafts, a sleeve loose on said transverse shaft and terminating in worms at each end and having clutch-notches at one end, a longitudinally-movable clutch-collar secured to said transverse shaft and having clutchpins at one end, and a shifting-lever vin engagement with said clutch collar, substantially as set forth. A

3. In a `lnalting-druni, a cylinder having feed-openings in its periphery, one near each end thereof and each surrounded by a collar shaped to fitand secured to the said periphery, said collar having an annular iange rising to a uniform height and provided with a iiat pivoted door, and dumping openings arranged in a line intermediate of the lines of the feed-openings and provided with sliding doors, substantially as set forth.

In testimony that we claim the foregoing we have hereunto set our hands, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.

FRANKLIN B. GIESLER.

HENRY SMITH.

Witnesses:

H. G. UNDEnWooD, NIE. OLIrI-IANT.

IOO

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