US617336A - Tank pla - Google Patents

Description

Patented m. m, I899.

v C. H. HANSEN.

TANK P LANER AND SCRAPEH. (A pplicatian filed Sept. 1, 1897.)

2 Sheeis$heetil.

N0.- 6l7,336.- Paiented fian. m, 1899.

c. H. HANSEN.

TANK PLANER AND SCRAPEB.

(Application filed. Sept. 1, 1897.)

2 Sheets-Sheet 2.

(No hipde l.)

rrrrisri S'rnr'ns ldnrsrrr rricn.

CHARLES n. HANSEN,- or 'iftAC-Ilni, Wisconsin;

TANK PLATNEW'AND' WAFER.

SPECIFICATION forming part of Letters Patent No. 617,386, dated J anuery 10, 1899. Application filed September l, 1897. Serial No. 650,253. (No model.)

To all whom it may concern.- Be it known that 1, CHARLES H. llnxsnx, a

citizen o'i the United States, and a resident of Racine, in the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in 'lanl; Planers and Scrapers; and Idohereby declare that the following is a full, clear, and exact description thereof.

My invention relates especially to devices for planing or scraping the interior surfaces of tanks and vats used in breweries and distilleries; and it consists in certain peculiariticsof construction and combination of parts, as will he fully set forth hereinafter and subscqnen tly claimed.

In the drawings, Fi ure 1 is a central vertical sectional view ot s tank with my device epplied thereto in operative position and shown partially broken away to better illustrate certain details of construction. Fig. 2 is a rear elevation of the simplest form of my device with the supports for the flexible shaft shown in section. Fig. 3 is a detail sectional view taken on the line 3 3 of Fig. l. Fig at is a detail sectional View taken on the line 4 4: of Fig, 5. Fig. 5 is a detail sectional view taken on the line 5 5 of Fig. l.

. In breweries, distilleries, vinegar-factories, 1

and other similar establishments it is customary to employ tanks or vats to contain the liquid product, and these tanks or vat-s are coated on their inner surfaces with varnish, shellac, or other substance, and after the lapse of time it becomesnecessary to recoet said sun faces, preliminary to which the old coating is thoroughly scraped off, andto efiieet this rcmoral of the old coating is one of the principal uses of my present invention, although it is also partic ulsrly adapted for smoothing the interior surfaces of such tanks or vats before any coating is applied thereto, and hence its so is not limited to the renovation of old 1 t nks and vets nor to the treatment of the spe-' oillc vessels referred to hercinabovc, although I have illustrated my invention as applied thereto.

Referring to the drawings, A. represents at circular tank or vat whose inner-surface is to be rendered clean and smooth by abrasion.

B is the upper section, and C the lower section. of elsdder, wh ieh mayconsist of as man y sections as the height of the tank or vat rcquircs, as hereinafter explained. In Fig. 1 I show this la-ddcr provided with one intermediate section 1 between the upper and lower sections already named, while in Fig. 2 I show the simplest form of said luddcr, com prising only the said two sections it and U. The upper section 13 consists of two parallel side pieces bl), united by rounds a. u, and with the upper ends of said side pieces preferably rounded over outwardly and thence continued horizontally and finally brought down verticztlly, as shown at b a (Z in Fig. l. FI'OIII lugs ggg on the practically horizontal outer end portions c of the ladder side pieces b'therc depend the swivclcd shanks c of verticallydisposed grooved or flanged rollers f, whose grooves o flangcs take in the upper top of the tank or vat, as shown in Figs. 1 and E3, the swiveled attachment of the said rollers permitting them to turn freely. to correspond to the curved psth they have to travel around the tank-top. The lower section 0 of the ladder is formed with parallel side pieces h 72 united by rounds or rungs i i, the upper ends of said side pieces being olisct inward and contracted toward each other and thence continued vcrticallyupwerd, as shown at jj ,these upper portions of said side pieces being formed with hooks 7.; It, projecting outwardly therefrom to engage witli the two lower-rounds of the ladder-section above. The lower ends of the side pieces h 7b of the IOWQIdFtddGFSQClilOn are outwardly rounded and at their extreme ends are provided with lugs'm m, whcrcinerc swiveled the shanks n of horizontally-disposed rollers ojndaptcd to bear against the inuersurface of the tank, as shown in Figs. 1 and 2. The intermediate ladder-sections D are formed with straight parallel side pieces 1), united by rounds'or rungs q, as shown in Fig. l, and said side pieces are offset inwardly and contracted and thence continued vertically upward, as shown at i, andthosc upper ends are formed with hooks It 7.: for engagement with the two lower rounds of the laddersection immedietely above, exactly as in tho-case of the upper ends of the lower ladder-section 0, already described. liroru the upper round a. of the upper ladder-section ll there is sus pended a pulley E, around which passes a rope 1*, one end of which is secured to an eye r on the abrading-tool G, said rope being secured to a lug or eye on the upper laddersection B.

The abrading-tool G is shown in detail in .the several views Figs. 3, t, and 5 and cornprises a vertical back plate t, having upper and lower horizontal flanges a r, the upper flange 1: being extended back beyond the back plate, as shown at u, thence upwardly, as shown at .r, and thence forwardly, as shown at y, this upper part, comprising the flange u and its extensions w :r 1 forming a case to receive the gear-wheels z a I), while the abrading-tools are received in a case formed by the back plate t and its flanges u 11. These tools in the preferred form illustrated in the drawings consist of a planer-head II, provided with suitable knives, and an abrading-cylinder I, covered with sandpaper, the said tools beingrigidly secured to thevertically-disposed journals 0 d, and the gearwheels a 7i being of equal size and keyed to the said journals e (1, respectively, While the gear-wheel r: is of much greater diameter and is in mesh with both of the other gear-wheels, as best shown in Fig. 5. This wheel .2 is keyed to a short journal e, mounted in the parts 20 1/ of the described case, the said journal c" below the part 1/: having rigidly secured thereto a socketf, within which is secured, as by set-screw 1 one end of a flexible shaft J, so that when the gear-wheel z is revolved by said flexible shaft, as hereinafter described, the gear-wheels a b will both be simultaneously revolved and each in the same direction. The back plate 6 is fitted with suitable handles 71/ 71,, so that the operator can hold the abrading-tool G steadily against the surface to be planed or abraded, as shown in Fig. 1, and to regulate the depth or thickness of the surface to be removed the said tool is provided with a series of rollers K K K, vertically mounted on adjustable frames t" i a", the opposite ends of said frames consisting of a series of rods projecting through openings in the back plate f of the tool-casing and the projection of said rollers with respect to the tools it I being regulated by the adjustingnutsj 7.1 on the screw-threaded ends of said rods.

The flexible shaft .1 is of the ordinary wellknown construction, and its outer end is at tached to any suitable motor (not shown) for furnishing the required power to revolve the planing or abrad ing tools. It isdesirable that this shaft should besosupported as tobe free from entanglement with the tank or ladderas the latter is revolved around the tanlr,ashereinafter explained, and, further, so that said sl1al't.l should enter the tank at the vertical central line of said tank. To that end 1 provide the curved open-topped trough l1, pivotally secured to the upper end of the ltd-- justable rod M, which latter telescopes within, the upright tubular-part N or tripod, said part N being provided with a parallel of a suitable stand set-screw m for holding the rod M fast when properly adjusted. The other end of the trough L is secured to the free end of a sliding bar 0, adj ustably secured to a bar P, projecting from the upper ladder-section B, to which it may be secured by rods and braces q '2", and the adjustment of the bars 0 1 maybe eil'ected by means of a slot 0 in one bar and clampscrews 1) 1) passing through said slot and through holes in the other bar, so that the support 0 P may be extended or reduced in length as may be found necessary in order that the free end of the part 0 may come over the vertical center of the tank and be held in that position. The inner end of the described open trough L terminates in a ring or collar or, which is fitted and seen red to the free end of the rod 0, and the flexible shaft J after traversing the length of the curved open trough L is passed through this ring or collar n, and thence down into the tank at the described vertical centralline thereof, and then up to the suspended tooLG and secured within the described socketf by setscrew 9 as shown in Fig. l.

The operation of myinvention willbe read- 7 ily understood from the foregoing description of the construction of my devices, taken-in connection with the accompanying drawings. Let it be understood, for example, that acircular tank or vat A is to have its inner sur face thoroughly planed or scraped, so as to remove the old shellac or varnished coating, and thus prepare it for a new cost. l irstthe frames 2" t" i on the tool G are adjusted so that the cylinder I and planer II shall project only the required distance beyond the line of the rollers K K K to insure the requisite depth of the cut or abrasion. Then the sectional ladder is supported on and within the tank, as many of the intermediate scctions D being employed as is necessary to bring the lower section C dling distance'of the ladder operator. (Shown in dotted lines in Fig. 1 as standing on the bottom of the tank.) The tool G is now suspendedby the rope F and pulley E from the upper section B of the ladder at the proper height for beginning the work, which would be close to the top of the tank. The tool operator now climbs up the ladder and stand i ng thereon grasps the tool G by the handles it h and presses the abrading devices II I firmly against the inner surface of the tank, and then, power being applied from the motor to the flexible shaft .l, the ladder operator starts on his annular travel around the tank, pushing the ladder in front of him till he has completed a circle. Then the tool G is lowered to the position required to out the new circle, and the rope F again made fast, and the operation first described is repeated, and so on until the tank-wall has been entirely planed and sandpapcrcd.

lit is obvious that under some oircu instances the tools for cutting or abrading may be mod laccording to the nature oi" the work to be within easy handone or the surface to be operated upon, as sometimes only planing or'sandpapering may be necessary, and in place of a sandpapercylinder sometimes a circular stifi-wire brush may be used, and therefore I do not limit myself to the precise construction of the abrading-tool shown and-described, although in travel on the top edge of a tank, a planing or abrading tool adj ustably suspended from said ladder, and a flexible shaft revolubly connected to said tool, substantially as set forth.

2. Ina device for planing or scraping the interior of tanksor vats, the combination with a suspension-ladder provided with an upper set of rollers adapted to engage with and travel on the top edge of a tank and a lower set of rollers adapted to engage with and travel on the inner surface of said tank, a planing or abrading tool adj ustably suspended from said ladder, an extensible supporting-bar projecting from said ladder toward the center of nta. supporting-stand, a curved trough extending from said stand-to said bar, and a flexible shaft supported in said trough and revolubly connected to said tool, substantially asset forth.

3. In a device for planing or scraping the interior of tanks orvats, the combination with a sectional suspension-ladder provided with rollers adapted to travel on the top edge of a tank, of a planing or abrading tool adj ustably suspended from said ladder, substantially as set forth.

4. In a device for planing or scraping the interior of tanks or vats, the combination with 'an upper ladder-section consisting of parallel side pieces curved outwardly at their upper ends .and united by rounds of rungs, verti- -cally-dis'posed flanged or grooved rollers havanex e ior.(et i l hu b ing' shanks swiveled to said section forengagement with the tank-top, one or more lower pieces inwardly ofis'et and contracted at their upper ends, and provided with hooks for engagement with the rounds of the section having its side pieces" outwardly rounded at haying shanks swiveled to said section for engagenient with the inner-surface of the tank, and a planing or abrading tool adjustably stantially as set forth.

interior of tanks or vats, the combination with a suitable case of a journal vertically mou nted therein, a gear-wheel on the end of said journal, a'tool having a cutting or abr'ading surface rigidly secured to said journal, movable frames oneach side of said tool, carrying vertical rollers at one end and adjusting devices at the other end, another gear-wheel journaied wheel on the tool-journal and'a revoluble flexible shaftsecured to the journal of said other gear-wheel, substantially. as set forth.

6. ha device for planing or scraping the interiorof tanks or vats, the combination with mounted therein, gear-wheels on the ends of other journal, movable frames adjacent to said tools, carrying vertical rollers at one end and adjusting devices at the other end, another gear-wheel journaled in said case in engage-' wheels, and a revoluble flexible shaft secured to the journal or. said other gear-wheel, substantially as set forth.

In testimony that I claim the foregoing I cousin, in the presence of two'witnesses.

GHARLES H. HANSEN.-

Witnesses:

H. G. Unnnnwoon,

B. O. ROLOFF.

ment with both of the firstrnamed gear-- ladderzsections .having-similarly-united side their lower ends, horizontally-disposed rollers suspended from said sectional ladder, sub- I 5. In a device for planing or scraping the in said case in engagement with the geara suitable case of a pair of journals vertically. I

80 antiquarian; aplaner-head on one of said journals and an abrading-cylinder on the have hereunto set my hand, at Milwaukee, in .the county of Milwaukee and State ofWis- 5s above, and the lowest section of the. ladder j

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