US484883A - schock - Google Patents

Description

No Model.) 3 Sheets-Sheet 1.

G. SCHOCK. MASH STIRRBR.

No. 484,883. Patented Oct. 25, 1892.

WITNESSES; I /NVENTO/?.' "g a v W M 1 BWK'MA 74mm TTOHNEYS.

(No Model.) 3 Sheets-Sheet 2, G. SOHOGK.

MASH STIRRER. No. 484,883. Patented Oct. 25, 1892'.

WITNESSES: INVENTOR: I M M ATTORNEYS.

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UNITED STATES PATENT OFFICE;

GUSTAV SOI-IOCK, OF NEW YORK, N. Y.

MASH-STIRRER.

SPECIFICATION forming part of Letters Patent No. 484,883, dated October 25, 1892.

Application filedMay 16,1892.

To all whom it may concern.-

Be it known that I, GUSTAV SOHOCK, aresident of the city, county, and State of New York, have invented an Improved Mash- Stirrer, of which the following is a specification, reference beinghad to the accompanying drawings, forming part hereof, wherein Figure 1 represents a vertical central section of my improved mash-stirrer, the inner working parts being mainly indicated in side view. Fig. 2 is an enlarged vertical central section and side View of the inner or central portions of the stirring mechanism. Fig. 3 is a partial vertical section and side view of the central portion of said stirring apparatus, the line 3 3, Fig. 2, indicating the plane of section, the lower sleeve around the vertical shaft being removed from this figure. Fig. 4 is a detail side view of mechanism on the opposite side to that which is represented by Fig.3. Fig. 5 isa detail cross-section through the scraper. Fig. 6 is a horizontal section on the line 6 6, Fig. 3.

This invention relates to sundry improvements on mash-stirrin g apparatus; and it consists of the new combinations and arrangements of parts that are hereinafter more fully specified, and pointed out in the claims.

In the accompanying drawings, the letter A represents the tub, which tub at its bottom has in the center a downwardly projecting socket or tubular extension at. Within this socket or tubular extension a is contained a vertical tube or sleeve B, and within this vertical tube or sleeve is the main vertical shaft 0 of the apparatus. This shaft is stepped in a suitable framing at the lower end, and is by bevel gearing b or otherwise rotated from a driving-shaft D. At the upper end the shaft 0 is properly centered by being keyed (see key d, Fig. 2) in a circular box E, which runs in an annular bushing e, that is carried by the roof f of the mash-tub A. It follows that when the shaft 0 rotates the box E is also revolved.

Returning to the vertical sleeve B, it will be noted that the same is by means of feathers or keys 9 (which are shown atthe lower part of Fig. 2) held in the socket a, so that it (the sleeve B) cannot revolve. Hence the shaft 0 revolves within the sleeve B; but nevertheless the sleeve B is capable ofvertical Serial No. 433,087- (No modeld adjustment, as will be hereinafter more fully described. Where the sleeve B projects upwardly from the socket a it is provided with a stuffing-box h, which prevents any matter contained within the mash-tub from entering the annular space that is formed between the sleeve B and the socket a.

I deem it a very great advantage which results from this constructionnamely, that the stuffing-box his applied above the bottom of the mash-tub to exclude matter from the spaces within the socket a. In mash-stirring apparatus in which the main vertical shaft is driven from below this placing of the stuffing-box above the bottom of the mashtub is by me regarded as a novelty. Heretofore in mash-stirring apparatus having the vertical shaft driven from below the stuffingboxes were placed below the bottom of the mash-tub, and consequently did not prevent moisture and impurities entering into the creases around the shaft and souring where they lodge, thereby contaminating the entire contents of the mash-tub.

It is perfectly clear that although the drawings represent part of the socket at extending upwardly from the bottom of the mash-tub, my invention will apply where none of the socket a extends upwardly from the bottom of the mash-tub, provided the stuffing-box h is located above said bottom.

lhe upper part of the sleeve B, which, as we have seen, is non-revolving, is connected by brackets 'L' with an annular rack or toothed ring F, which, since the sleeve B is non-revolving, is also non-revolving. By means of screws j, of which one is indicated by dotted lines in Fig. 2, and which are also indicated in Figs. 3 and 4., the upper part of the sleeve B is connected with a ring it, that is carried by a revolving sleeve G in a groove formed within the outer circumference of said revolving sleeve G or of an enlargement thereof. By means of this connection j between the nonrevolving sleeve B and the ring it, Which ring it is therefore also non-revolving, the sleeve B is rendered capable of vertical adjustment with the revolving sleeve G, as hereinafter described, and the ring 70, being carried in a groove of the revolving sleeve G, is permitted to remain non-revolving.

The sleeve G which has been described as a revolving sleeve, is by *keyor feather Z'(see Fig. 2) so connected with the shaft C that it will be rotated whenever said shaftis rotated,

and that it will in turn revolve the stirring and scraping devices, to which we will hereinafterrefer-that is to say, thesleeve-G'can ries radial arms H I in suitable numbers, and causes them to rotate within the mash-tub around the axis of the vertical shaft whenever this vertical shaft is revolved. The radial arm I, together with abox m on the sleeve of the vertical shaft C, and with it theshaft J, said shaft J is at the same time also re-i volved on its own horizontal axis, and with it the stirrer-blades,sothat these stirrer-blades will thoroughly agitate the contents of them ash-tub, reaching every part thereof 'd-uriu g their revolution around the vertical shaft,

and taking them up and distributing them duringtheirrevolution around the horizontal The arm H, which also projects "from the rotary sleeve G, has 'downwardlyeprojecting rods 19, to whose lower ends thescraper-f Fig. 5 illustrates this pivotal connection andshows that the scraper-blade extends farther above its pivot '4" than below the same and that its lower'porshaft.

blade I is pivoted, as at 7'.

tion is sloped or tapered, asindicated. "Springs s, which are aifixed to the upright arms p, bear against knobs t, that are affixed to the;

upper portion of the scraper-bladeand tend to keep the'scraper-blade normally in its upright position, being the position which is in-* dicated by full lines in Fig. 5. iftwill be'observed, also, from Fig. 5 that the springs s, which perform the function last mentioned,

extend quite a distance down 'below the knob t when the scraper-bladeisin itsnormal po-@ sition. The object of the scraper-blade is to scrape and carry before it the mash'ormatter contained within the mash-tub and present it in new positions to 'the'stirrer b'lades or instrumentalities n; but it has been found 3 in practice that when by carelessness'of the attendant or from some other 'cansethe scraper-bladeisbrought in contact with too great a thickness'of matter in the mash-tub some part of the mechanism is lialblQIO break,-the strain being excessive, especia'llyas thecontentsof a'mash-tub'are moistened and 'very heavy.

with too great a height of matter it will swing on its pivot against the pressurexof the spring- 8 into the position which is indicated by dotted lines in Fig. 5, and will in that position be a most eifectivescraper todisseminate the matter at the bottom of the mash-tub and obviat-e the difficulty of too high an accumulation at any one point, and whenever the thickness of mash-or-other-obstruction is again reduced within the mash-tubthepressure of the springs s will suffice to automatically raise the scraperblade .back into its normal vertical position.

Ihavealso found that in mash-stirring devices it frequently occurs that the stirring i-nstrumentalities working necessarily atsome distance from the central shaft will cause an accumulation of mash-matter near the said central shaft, permitting it to rise. there, whereas at the greater distance from said shaft the mash will be lesst'hick. "-lo :pre- Vent this accu rnu'lation of mash 'near the shaft, '1 Ihavesecured to thearm H near the shaft a pendent rod uywhich has spirally-arranged blades 1), thatextendtoward the central'shaft *0, coming as close therdtoaspossiblq. 'Ihese blades user've to move the mash away from thecentral'shaft and its neighborhood "and to prevent the central accumulation mentioned. v

It remains to describe *how for the purpose of cleaning and "forother purposes the entire stirring mechanism may'be'raisedorlowered, togetherwith the non-revolvingsleeve B. 'To this end I support 1n the 'rotary box E, which is carried at the upper part *of the shaftC, "three toothed wheels 10 w m. The centralone of these toothed wheels-etc wit,t'he'whee'l :z:- carries on an upwardly-extending stem z'a friction or toothed wheel'y, near which there are placed upona horizontal shaft M'f'rictioncones a and b, as shown in Fig. 2. The central wheel w m'eshes into the toothed wheels w w, as indicated in :Fig. 6. Each of these toothed wheels w w connects rigidlywith a dowrrw'ardly-extendin g screw N, there being *two such screws, as shown "in Fig. 3, one for each of said wheels. These screws'mesh into "the threads of nuts 01 that are-carried bythe rotary sleeve G. Normally when both cones other-contact with the whee'l y. This can "be done by a "shipping-lever '0, which is indicatedin'F-ig-Z. When bymeans of this'ship- To obviate the injury to the parts of the apparatus from the cause just named,'I have pivoted the scraper-blade and caused its 'upping-lever one of these "cones a b is thrown against the wheel y,-said w'heel 'y'is revolved on its own axis, and consequently the 'central toothed wheel w'is also revolved in one certain "direction. The screws N N'a'rethereby turned to IiftthesleeireG orto lower it, according to the come a '"biwhich has been thrown into connection-that is to say, 'by moving the shipping-leverO in one direction the screws will be caused to raise, and by'moving it in the other direction they will be caused to lower the sleeve G, and when they do raise or lower the sleeve G they also by means of the connecting-ring k and screws 3' raise or lower in like degree the n0n-revolving sleeve B, so that the relative distance between the annular rack F and pinion 0 is never disturbed.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. The combination of the mash-tub A and the vertical central shaft 0 therein and mechanism, substantially as described, for rotating said shaft from the lower end thereof with the non-rotating socket a, extending downwardly from the bottom of the mash-tub, nonrevolving sleeve B, contained within said.

socket and surrounding said shaft 0, and with the stufling-box h, said stuffing-box being placed above the bottom of the mash-tub against the outside of the sleeve B, all arranged so that no part of the body of the rotating shaft comes in contact with the mash in the tub, as specified.

2. The combination of the mash-tub A and its vertical central shaft 0 with the non-revolving sleeve B, surrounding the lower part of said shaft, and with stuffing-box h, placed above the bottom of the mash-tub, screws or connecting-rods j, non-revolvingring k, and rotary sleeve G, and mechanism, substantially as described, for revolving the sleeve G, all arranged sothat the non-revolving ring It and the non-revolving sleeve B are connected with the revolving sleeve G for the purpose of vertical adjustment, substantially as herein shown and described.

3. In a mash-stirring apparatus, the combination of a scraper-blade L with vertical carrying-arms p, pivot 1', and spring .9, the scraper-blade extending above the pivot r farther than below said pivot, so as to be capable of automatic adjustment, substantially as herein shown and described.

4. The combination, in a mash-stirring apparatus, of the mash-tub A, vertical central shaft 0, and horizontal and vertically-adj ustable arm H with the scraper L and pendent rod u, the latter being rigidly attached to said arm intermediate of the said scraper L and shaft 0, and with the blades b,projecting therefrom toward the shaft 0 and in close proximity thereto, so as to prevent the material collecting around said shaft C, substantially as and for the purpose herein shown and described.

5. The combination of the vertical shaft 0 and mechanism, substantially as described, for'revolving it with the vertically-movable sleeve G and scraping mechanism carried by said sleeve G, nuts d also carried by the sleeve G, screws N N, engaging said nuts, pinions to w, carried by said screws, central pinion 00, mounted on the main vertical shaft 0 and engaging the pinions w w, frictional wheel y, carried by the central pinion w, and frictional cones (:1. b and means for engaging said cones with the frictional wheel 1 whereby the sleeve G can be raised or lowered, substantially as described.

GUSTAV SCHOCK.

V Witnesses:

HARRY M. TURK,

E. L. SHERMAN.

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