US1913610A - Work holding apparatus - Google Patents

Description

June 13, 1933. w. ORNSTEEN WORK HOLDING APPARATUS Filed Feb. 10, 1931 ZSheets-Sheet 1 June 13, 1933 w IORNSTEEN 1,913,610

WORK HOLDING APPARATUS Filed Feb. 10, 1931 2 Sheets-Sheet 2 Patented June 13, 1933 I i' i T j T S PA T FE C 1 WILLIAM onset, or nAvnnmrn -mnssacnnsn rrs Q won qmmmgrammes *Thisinvention antes mamas; a);- eming small articleswhile they arebelngjcoated by spraying, or atomizing a lacquer thereon,

and more particularly to a" device for this put osewhioh is especially adapted for use to apply thecoating uniformly to the sides,

back, and sometimes the breast surfaces, and

handled, and toprovideeffective means for removingjthe' ,fumes, which are necessarlly discharged into the air, from the room in which the operation is performed." i v The olo'eots of my inventonare to provide ahqlding device for small articles like heels, whichwillenable the 'spraying' operation to be rapidly and uniformly performed on all portions of the surfaces which must "be odated; which will enablethe lacquer} to harden for a suitable lengthof time on one lot of heels Without delayir'ig the operation oh'othrs, but which will enable an ass stant a tothe operator to removethecoatedheels and 9 place others in position for coating as rap d 1y as theoperation canbe performed, which will enable all fumes discharged into the air,

while the ope-ration is being performed, to

hefthoroughlyfexhausted from the room in which the ork is beingperformed, and which will provide means forflefieotively, heelswhich varyiwidely in height in a a manner iniwhich will enable the operation to" eonstructionhereinafter described and illus-,

trated in the accompanying drawings, in w l i 1 it p: Fig; 1 is a iiront elevation of an apparatus embodying agpreferred form otmy invention, 1

Fig. 2 isaside elevation thereofgf holder which is preferably employed. 4501 Figatis a Jdetail yiew ofaconnection be permit the lacquer to harden before they are shaft which {is employed;

F'g. 5 is a' sectionalview riggiiandyx" H p V i, lFig. 6 is a sectionalyietr at line 6%6 of 55 As shown in the drawingsjthe apparatus comprises a pair of upright frames 10 andll on the' t0p of which ahorizontallyarranged tween the end braohets' and main hollovwshaffior 'i pe12 is secured by bolts 13, {as shown in 1g. 4, sothatfsaid frames arefrigidly connected and said shaftisheld in fixed relation. Apair of flat sheetirietal disks 14, 16 are rotatably mounted on the shaft-.12 in proximity tothe frames 10,211, respectively, said disk beingconnectedby cross rods 15, so that they are helddnfimd relation and will rotate as a single structure ontheshaft 12. I a. d QTheCErames10, 11 areyektended forwardly to provide a support for atable 17, and for two sheet metal shields18 20, the shield 18 being arranged to extendupward ntmthe table in front of, and closefto the peripheral edges ofjthe disks 14,16 and entirely across 75.

the space therebetweemand the shield QObej ing' similarly arranged and supportedyaboi e the shield '18, so as to provide a narrow Ope'IiQ ing between the adjacent edges and the space a betweenthedisks; i

opposite end is connected to an exhaust fan 23 by a pipe 24'; The shaft 12 has a funnel shaped conductor 25 mounted on-themiddle PO tiOn thereof, said conduction being ex tended towards the opening between the shields 18,20; and terminating at a suitable distance from the inner :sides thereof. The; open jend of said conductor corresponds in shape-to said opening and hasitstopiand bot tomsides, and ts ends extending convergent-y lyfro n the. openingbetween the shields to the shaft 12, 0 theinterior of which it isin open communication, as shown in Figst5 andfi. As above stated, the apparatus hereinbe D fore described is primarilydes ignedfor use g4 31sadeta1l new of a portion ofa heel in spraying heels, and*to* this end Ipi'ov idelf it 5 each dish 14,16, with a series of apertures Whichjare circularly arranged therein in close heights may be held sufliciently securely for proximity to the peripheral edges thereofand are regularly spaced apart, and arranged so that each aperture in one disk is in alignment with a corresponding aperture in the other disk. I also provide a series of rods 26, each of which is rotatably mounted at its ends in the corresponding apertures of each disk. Each rod 26 is provided with two right angular bends adjacent its ends, so that its middle portion is oifset by crank arms to one side of the axis about whichthe rod rotates, and said middle portion is provided with a series of heel holders, or clamps, each of which con sists of a rigid post 28, having an enlarged head 29 on its end provided with a sharp edge, and a flat spring, or resilient arm 30. Said posts 28'are each rigidly: mounted on the rod thereof. and extend perpendicularly thereto towards the axis of the rod and each spring 30 is secured on the rod at a suitable distance from its corresponding post and normally extends obliquely from the rod towards the end of the post. 1

Each post and spring constitute the members ofa clamp, and, in placing a heel in'positiontherein, the top lift, or tread end, preferably, of the heel is engaged with the edge of the head 29 of the post and the spring 30 is pulled away from the post until its end portion canbe engaged with the base of the heel, as shown in: Fig. 3. As the spring of each clamp is made of highly resilient steel, so that its .free end may be moved thru a con: siderable distance, heels of a wide range of the-purpose in each clamp and may bequickly placed therein and removed therefrom, A knob 3l is mounted on one end of. each rod, so thatthe rod may be rotated easily. As the 7 portion oftherod on which-the heel clamps are :mounted off-set from the axis of the rod,: when a heel is in position in aclamp, the middle line .of its breast surface will be held. close to, or nearly coincident with the axial line of the rod, as shown in Fig. 3,,so that, when the rod is rotated, the heels thereon will be rotated about an axis which an proximates to the longitudinal axis of the curved sides and back of the heel. The opening between the adjacent edges of the shields 18, 20 corresponds in width'to the distance between adj ace'nti rods 26, so that when any one of the rods is held midway of the opening the heelsion the rods next ad 'acent thereto will beheld in the rear of the shields above and below it respectively. The distance between the inletend of the conductor 25 andthe shields 18,20 is suflicient to permit therods 26withthe heels thereon to pass therebetweemlas shown in Figs. 5 and 6.

The manner of usingthe hereinbefore described apparatus is as follows: The operator stands in front of the table 17 and is provided with a common form of lacquer atom- 'izer, as A, which is supplied with air under has thus brought into "position, turning the rod as he sprays each heel so that he can apply a uniform coating of lacquer over the entire side and back surfacesof the heel, and on the breast surfaces if desired. When the lot of heels on one rod has thus been coated, the supporting disks will be rotated'suiiiciently to bring the next holder rod into position opposite the opening between the shields, so that the above described operation may be repeated. By the time the heels whichhave thus been coated will have reached the back side of the holder, the lacquer with which they have been sprayed will have hardened, so that the coated heels may be removed and others placed in position by the'assistant, thereby enabling the operation to be carried on continuously.

The particular construction of the heel holding means is particularl advantageous in this connection as, by hol ing the heel in such amanner that it may be moved rotatably about an axis which is closely adjacent the longitudinal center line of its breast surface, the work ofthe operator is made less diflicult as the curved surface of the heel, which 'isto be sprayed will be moved, approximately, about the center line of itscurvature. The heels will also be held at a suflicient distance from the rod on which they are mounted to enable the breast surfacesof the heels to be sprayed without difiiculty. As shown in Figs. 5. and 6, the inlet opening to the air exhausting conductor 25 extends for nearly theentire width of the space between the rod sup porting disks, and isof awidth slightly greater. than the width-ofrthe opening between the shieldsections 18, 20, sothatthc spray from the atomizer which is directed against the surfaces of the heels through this opening will be directed towards, or into thev inlet opening to the air exhausting means;

Consequently practically all of thelacquer spray which does not lodge on the heels, or

heel holders above and below the particular holder which is being operated on, 'and'ma terially assist in causing the spray which does not lodge on the heels to be drawn into the funnel shaped conductor 25, as air ourrents to supply theexhaust fan will not only be drawn in thru the opening between the shields, but will also be drawn from the space between the disks and the shields. The escape of fumes from the lacquer into the room in which the operation is performed is thus effectively prevented.

The entire operation of coating heels, or other small articles, by spraying, may thus be rapidly and effectively performed.

I claim 2 1. An apparatus for the purpose described comprising-a tubular shaft, a pair of supports mounted forrotation on said "shaft and connected togetherin fixed, spaced relation, a

series of work holders extending between said i supports and mounted therein in circular relation to the axis of zsaid supports, whereby they may be carried in a circular path by said supports, an air conductor connected to the interior of saidushaft and having an inlet mouth disposed withinand in proximity to said path, and means for exhausting the air from said shaft while the holders aresuccessively held in front of the mouthof said conductor.

2. Anapparatus'for the purpose described comprising a tubular shaft, a pair of circular supports mounted for rotation thereon and connected in fixed relation at a suitable dis tance from each other, a series of work holders disposed between and rotatabl mounted at their ends in said supportsya jacent the peripheral edges thereof, a tubular conductor connected atone end to the interior of said shaft and opening at its opposite end adjacent and within the path in which said holders move when said supports are rotated, to permit the holdersto be held successively in front of the opening to said conductor and means for exhaustingthe air from said shaft.

3. An'apparatusfor the purpose described 1 comprising a hollow shaft, a pair of substan tially imperforate circular, disk-like V supports mounted forrotation on said shaft and connected in fixed relation, a series of work holding rods mounted at their ends in said supports adjacent the peripheral edges thereof, in position to be carried in an approxi mately cylindrical path, when said supports are rotated, an air conductor mounted on and interiorily connected to said shaft between said supports andhaving an inlet opening within and adjacent said path in front of which each of said rods may be successivelyl held and means for exhausting the air from said shaft. 1

j 4. An apparatus for spray-coating articles a 1 comprising a pair of supports mounted for rotation about a common axis, spaced apart and connected in fixed relation, a series of article holding rods rotatably mounted at their ends in said supports and disposed in circular relation to said axis, means on each of said rods for holding a plurality of articles and-an airexhausting conduit mounted within the apath :of movement of said rods as they a row extending longitudinally thereof, whereby the articles .on "each rod may be .suc- :cessively carried into a positiontorbe sprayed andinoved rotatably-.while in said position, i.

are carried bys'aid support and having an inletmouth1thexsides of .i which terminate; in proximityito "the inner periphery of said path and inefront of which .the articles .on' each rodiane held whilein said position. 5;Anapparatus for spray-coating articles comprising a rotatabiy mounted support,=a

series of elongated-article holders Xmounted on said support in;spaced relationl about its axisand in-position to belcarried in a cylindrical path, thereby, when it is rotated, a

shield mounted exteriorly of, andin proximity to said path and having an opening corresponding to the dimensions of the holders, opposite which the articles on each holder ma be successively held while being sprayed, an an air-exhausting "conduit disposed within said path and having an inlet mouth disposed in register with the opening in said shield, and in proximity to the inner periphery of said path, whereby surplus spraying material discharged through said opening a will pass into said conduit.

6. In an apparatus for spray coating arwhenin position to be sprayed, and means for exhausting air from said conduit. 7

7 An apparatus for spray coating articles comprising a circular support mounted for rotation about a horizontal axis, a series of elongated article holders mounted in spaced relation on said: support for rotation about longitudinal axes equidistant from and parallel to the axis of said support, whereby said holdersmay be carried in a circular path and may be successively moved into a position to be sprayed and independently rotated while in said position, and an air exhausting conduit mounted within saidpath and having a fixed inlet mouth opening in proximity to said path in position to permit each holder to be held in front thereof when in position for spraying. i a a I 8. An apparatus for spray coating small articles comprising a circular support mounted for rotation about a horizontal axis, a series of elongated article holders each having means for holding a plurality of articles thereon in longitudinally spaced relation and mountedin spaced relation on said support .for rotation about longitudinal axes equidistent-from and parallel to the axis of saidsup- 'port,- whereby said holders may be moved in a: circular path and may be successively 1 moved into a position for spraying the anticles thereon and independently rotated While insa-id position, and an air-exhausting conduit mounted within 'said path and having a fixed inlet mouth, extending for apvproximately the length of the holders and opening in proximity to said path, to ermit each holder to be held in front thereo when 7 in position for spraying.

- #In testimony whereofll I'have signed my 15 name to this specificatio P V 1 i WILLIAM ORNSTEEN.

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