US885069A - Sanding-machine. - Google Patents

Description

110.885,069l 1 PATENTBD A111121, 1903. 1;. 11. MULLIKIN;

- SANDING MACHINE. APPLIOATION FILED JULY s, 1907.

witnesses.'

,MQW/MW E/fazzzuq l A'so ELLIEHUGH MULLIKIN, OF DALLAS, TEXAS.

sANDvING-MACHINE.

No. 885,069. f

Specification of Letters Patent.

Patented Ap`1jl21, 1908.

Application alec July 5, 1907.` serial No. 382,279.

To all whom it may' concern. j

Beit known that I, ELLIE HUGH MULLI- K1N, citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new Improvements in Sanding-Machines, of which the following is a specification.

This invention relates to an improvemen in sanding machines and more particularl l to machines of this character which are'vuti ized for applying sand to freshly painted suraces.

The object of the present` invention is the provision of a device of this character in which a sand box or receptacleiscarried by and communicates with a distributing nozzle which may be connected to any" suitable source of-airsu ply.

A further object of the invention is the provisionl in a device of this lcharacter of means-for cutting 0E the communication between the sand boX and the distributing nozzle at will, and means for` preventing any sand whichl may be in the distributing nozzle from falling into the blower or air pump when the 'supply of airtherefrom is cut off. Other objects of the invention. will be apparent from the detailed description herein-y after when read in connection with the laccompanying drawings forming apart hereof, wherein a preferable embodiment is shown and wherein like numerals 'of reference refer to similar arts in the several views. i

In the rawings, Figure 1' is a side elevation of the distributingnozzle of my In.'- proved machine, Fig. 2 1s a side elevation of the delivery pipe which extends from the blower or air umpvand is desi ed to be connected by exible tubing wit the inlet end ofthe ydistributing nozzle, Fig. 3 is a cross sectionon line 3-3 offFig. 1.

. V,Referrin now more arti'cularly to vthe drawings, designatest e distributingnozzle of my improved sanding machine, which isy in. the formof a pi e, the outlet end of which lis restricted an discharge tip-a having'a relatively wide opening therein so that the sand will' bedelivered froml said nozzle in a thin stream, and the rear end of 'Whichis adapted to be connected by a ilexible tubing?) to axdischarge pipe'B, which communicates with the outlet of a fan blower or other suitableair-forcing device. The outlet end ofthe ipe or tube B ls preferably restricted so t at the air from the and useful will be apparent that by is provided with a blower will .enter the flexible tubing b in the v form of a `strong jet.

The distributing nozzle A hasv secured thereto intermediate the ends thereof, in any suitable manner, a sand box C. The sandVv box C is in the form of an inverted cone, the f a ex of which constitutes a restricted outlet w ich `communicates with the interior of the distributing nozzle A and ermits the sand in said box to be dischargeclidirectly, into said nozzle. The delivery of sand box C into the distributin nozzle A is controlled `by means of a conica valve c which is designed to coo erate with a suitable valve seat adjacent t e outlet of the sand box. Extending from the valve c is a valve rod c', the up er endy of which projects through the cover o the sand box and isv provided with a suitable knob or handle c2 to permit of thevactuation of said rod. The rod-c is dprovided intermediate its ends with a threa ed portion c3 which engages a threaded aperture formed in a cross ar which is secured within the interior of the sand box C. From this construction it manipulating the knob or handle c2, the valve c may be re ulated toermit the sand in the sand box to liow with) any desired degree of rapidity into thedistributing nozzle A or to cut oif the flow of'sand entirely. n

The tube or pipe forming the distributin nozzle A is provided intermediate the san' box C and the inlet end .thereof with an offset portion, which in the form of machine illus.-

trated in the drawings, is `in the form of a coilorv wrap A. The coil or wrap A constitutes a handle fort he manipulation of the distributing lnozzle by the operator and also Aa' brace for the support of the sand box C,

the casing of'which is soldered or otherwise rigidly attached to the adjacent portion of said coil. The `coil A vsand which may be in the distributing nozzle also revents any when the blast of air from the blower is cut ofi from falling into said blower and thereby injuring the same. v

Any desired means may be employed for cuttinv` olf the flow of air from the blower when desired. l

I do not desire to limit myself to the precise form and constructions shown in the drawings, as it ,is obvious that lmany minor changes might -be made thereto without deartin from the spirit of the invention as i eline in the appended claims.

Having thus described the invention what is claimed is:

1. In a san machine, a distribut' tube having 'a coi or wra therein, a san box communicating with said tube in advance of the coil therein, and an air-forcing device communicating with said tube in rear of the coil therein.

2. In a sanding machine, a distributing tube, and a sand box carried by said distribut' tube and communicating therewith,sa1d distributing tube being provided with an offset plortion in rear of the said box constituting a andle.

3. In a sanding machine, a distributing pipe provided at its outlet en d' with a nozzle, and a sand box carried by said pipe and communicating therewith, said pipe being provided with an offset vportion :in rear of said sand box.

4. In a sanding machine, a distributin pipe provided with a nozzle at the outlet en thereof, and asandbox carried :by said pipe and communicating therewith, said lpipe' being provided with a coil therein in rear of said sand box.

5. In a sanding machine, a rigid distributing tube provided with a :coil lnterinediate the ends thereof, a sand box carried by said tube and communicating therewith in advance of said coil, said coil being rigidly secured to said 'sand box to. constitute a brace therefor.

6. In a sanding machine, a ri id distributing tube provided with a nozz e at the discharge end thereof and with a coil intermediate the ends thereof, a sand box carried by saidl tube and communicating therewith in advance of the coil, and a valve controlling the flow of material from said sand box to said tube.

In testimony whereof lI have signed my name to this specification in the presence of two subscrbin witnesses.

' EL IE HUGH MULLIKIN.

Witnesses:

M. HEAFER, WM. A. CATHEY.

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