US1485925A - Worktable for use in coating articles - Google Patents

Description

W. HOGENSON WORKTABLE FOR USE 1N GOATING ARTICLES 2 Sheets-Sheet l W. HOGENSON WORKTABLE FOR USE IN COATING ARTICLES a Sheets-Sheet 2 Filed Sept. 8,

Patented Mar. 4, 1,924.; i

aureo SIA-rss -ATENr Iormoniv ENAMEL PRODUCT COMPANY, F CIC NCIS. l

Eno, ILLINOIS, a CORPORATION or ILLI- woRx'rA'BLEron Uisn IN connue ARTICLES. i

.application led September 8, 1922. terial No. 586,910.

To all whom it may concern:

Be it known that l, WILLIAM HoGENsoN,

a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Worktables for Use in Coating Articles of which the following is declared t0 be a scription.

rlhis invention relates to. work table for use in coating articlesand its principal object is to provide a traveling Work support with means for turning the articles, while they are-being sprayed, whereby all of the te sides of the articles, except `perhaps the bottom, may be sprayed, durmg the interval that the article is assing the operators station. Another ob]ect is to reduce-to a minimum, the time usually required for applying enamel to the Wares. Another object is to provide a device upon which two operators may work at one and the same time, whereby all sides of thev articles may be treated from the time they are placed on.

the table until removed therefrom, thus dispensing withthe necessity of handling them more than once. Otherpbjects and advantages will appear in the course of the following specification, and with all 0f said ob.

jects and advantages in view, this invention consists in the several novel features herein-v after fully set forth and claimed. The invention is clearly illustratedinV the accompanying drawings, in which:

Fig. 1 is a, plan, partly broken awa of an enamel ware spraying table,l embo yin a simple form of 4the present invention an v Fig. 2 is a vertical, central section thereof,

taken on the line 2-2 of Fig. 1.

Referring to said drawings, which illustrate one embodiment of the invention, the reference character 5 designates the base of the device upon which is rotatively mounted a carrier, hereshown in the form of a spi' der like frame 6, which supports turn tables 7, that are-rotatively mounted on the Carrer 6, and are driven to rotate upon their own axes at certain stations duringthe rotation of the carrier 6. The base 5 may be of any suitable form and, as shown, comprises a central housing 8, in which -is mounted a verticall shaft 9 to which is Secured the carrier 6. On the top of the housing 8 is supported a ball race 10, above which and spaced therefrom, is a second-ball full, clear, and exact derace 11, between which is a circular plate 12 formed on a hub portion 13 of the carrier 6. Antifriction balls or other antifriction members 14 are interposed between the ball v rages 10, 11 and plate 12, to provide-an antifriction bearing for the carr'erv 6. The housing l8 may have an annu ar wall 15, above its top portion 116, which extends above and protects the antifriction bearing members, and a ring 17, inay be secured to said wall 15 to cover the ball races, and set screws 18 may be threaded in said ring to bear against the upper ball race thereby holdingthe same in place. At the bottom of the housing is seeured a bracket arm 19 in which the lower end of tlie shaft 9 is journaled. The rotating carrier 6 ma be rotated by any suitable means and it is ere shown as being power driven, from an elec. tric motor 20. A speed reducing gearing element 21 is interposed between the motor and rotating carrier 6, andthe drive connections between .said speed reducing gearing and rotating carrier', may comprise a beveled .pinion 22 on the shaft of said gearing, and a beveled gear wheel 23 mounted on the' shaftA 9 of the rotating, carrier 6.

Bolted `or otherwise secured to the hub .13 of the carrier 6, are arms 24 that radiate from the hub l13, .and sup ort the turn tables Said arms are pre erably T shaped in cross section, and upon the webs '24 ofsaidarmsare removably ,supported drip pans 25 which ll in .practically all of the spaces between the arms 24, andcatch any drippings from the articles or any enamel or other paint or coating material that is sprayed upon Ithe, articles4 carried by the turn tables, The marginal edges 26 of the drip pansl are bent up, as shown; The

drip pansv 25 4may be readily removed from the rotating carrier 6 for the pur se ofcleaning them. They `are forme with openings 25L around which are bent up vedge portions 26E. shafts, as will be hereinafter set forth.

Secured to and connectin the outer ends of the arms 24 are struts or racket arms 27 in which are journaled upright shafts 28 located midway between the arms and projecting through the holes 25 in the pans, and on the upper ends 'of said shafts 28 are removably secured the turn tables 7, as for instance the upper end-s ofthe shafts 28 may be ilattened, and the turntables may have hubs 29 secured on their lower faces,

which are formed with correspondingly attened sockets for the reception of the attened upper ends of the shafts 28. The lower ends of the shafts 28 are journaled in lugs 27a formedv on said struts or bracket arms 27. Upon the lower ends of the shafts 28 are secured pinions 30 that are arranged to come into mesh with one or more gear segments 3l, 31a, located at a certain place or places about the base, whereby, as the turn tables pass said gear, segments, they are thereby rotated upon their own axes to thereby present the various sides of the articles carried thereby, to the operator. ln the drawings two gear segments 31, 3l.a are shown, whereby the turn tables may be caused to rotate on their own axes at two places about the base, but a lesser o1" greater number of gear segments may be employed when necessary. The ear segments are secured to upstanding racket members 32 bolted or otherwise secured to frame members 33 of the base 5.

Located above the places where the turn tables rotate upon their axes, are spraying cabinets 34, 34 through which the articles are moved for treatment. The cabinets comprise box like structures closed at the top 35, sides 36, and back 37, 37a, their fronts and bottoms being open. .Their rear sides 37 slope downwardly and upwardly as shown, and leading from their rear sloping sides 37a are outlet conduits 38, 38,which join with an outlet conduit 50, which leads to an exhaust fan (not shown). Dampers 39, 39 are placed in the outlet conduits, 38, 38a whereby either conduit may be closed to its cabinet, so that the air current'vmay be moved throu h the one employed. A receptacle 40 is placed in communication with the conduits 38, 38 in such position as to catch any liquids that may fall through the conduit 50.A

The 'cabinets are supporte by any suitable means, here shown as comprising upright posts d1 and horizontal members 42, secured thereto to which the cabinets are attached.

" @penings 43- in the side walls of the cabinets,

partly closed by doors 43a, permit the-articles to pass'through the cabinets from side to side.

lin the o eration of the device, and assuming that al sides of the articles are to be enameled or otherwise coated or sprayed, the unfinished articles are placed onthe turn tables at some point between the two cabii nets or operators stations. Power being applied to the rotating carrier, the latter is rotated and as eachpmion 3() comes into mesh with the gear segment under one cabinet, the pinion is rotated and therewith the turn table mounted/fthereona'and the articles carried by the turn"table. 'The table is iven atleast one complete revolution. upon lts axis, as 1t passes through the cabinet, thereby displayineaeae sides, which are exposed or presented to, him.

When the pinion 30 runs off the gear segment, the turn table stops rotating and an attendant mayinvert the articles carried thereby, so that the side which was undermost may be sprayed when the articles reach the other cabinet. After they leave the cabinets they are removed and replaced by unlinished ones, and in this manner the operation may be made continuous, and very rapid..

rlhe suction created in the cabinets carries ol'fany of the spray which does not strike and adhere to the articles or walls oi the cabinet.

lVhenever it becomes necessary to change colors, the machine is stopped, the turn tables removed from their shafts and cleaned, and the drip pans removed from the machine and the drippings poured out and the pans thoroughly cleaned and replaced after which the turn tables are replaced on their shafts.

`The device has been particularly designed for use in spraying enamel upon wares of various descriptions, but it may be used for spraying or applying other coatings or suracing material to articles ot various kinds.

More or less variation of the exact details ot construction is possible without departing from the spirit of this invention; li desire, theretore, not to limit myself to the exact form of the construction shown and described, but intend, in the following claims, to point out all of the invention disclosed herein.

l claim as new and desire to secure by Letters Patent: v

l. A spraying table, comprising in combination, a base, a bracket secured thereto, a stationary gear segment secured to and supported b said bracket, an upright shaft journale in said base, power mechanism for said shaft, horizontal supporting arms secured to and radiating from said shaft, struts connecting the free ends of said arms2 upright circumferentially arranged pinion pinions secured on the. lower end of pinion 4sha-tts and arranged to come into said mesh with said gear segment, horizontal turn tables located above said struts and removably secured on said pinion shafts, and circumerentially arranged removable drip pans below said turn tables set contiguous with each other.

2. A spraying table comprising a rotatory frame, drip pans removably resting on said frame, turn tables removably supported above said drip pans, and means for intermittently rotating said turn tables on their He sprays the articles as they pass l liti own axes, including pinion shafts, one for each turn table, each shaft extending above and below the bottom of an associated drip pan. I

3. A spraying table comprising a rotatory frame having a central hub portion and arms radiating therefrom, drip pans extending between and removably secured upon said arms, each drip pan having a flanged opening in its bottom, removable turn tables located above said'drip pans and -means below said drip pans for intermittently rotating said turn table upon their own axes, including shafts, one for each turn table extending through the opening in anv associated drip pan.

4. A spraying table comprising a rotatory frame having a central hub, arms radiating therefrom and struts connecting the ends of said arms, drip pans vremovably secured upon andextending between said arms, each drip pan having a anged opening in its bottom, removable turn tables located above said drip pans, driving mechanism for intermittently rotating said turn tables, including pinions and shafts, said shafts extending through said anged openings in' the bottom of the drip pans and being connected to said turn tables, and stationary gear segments with which said pinions are arranged to mesh.

WILLIAM HoGENsoN.

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