US1333079A - Powder-distributer - Google Patents

Description

F. J. KAUFMANN.

POWDER DISTRIBUTER.

APPLICATION FILED OCT. 9. 1918.

1,333,079. Patented Mar. 9,1920. V

2 SHEETS-SHEET 1.

Patnted Mar. 9,1920.

2 SHEETSSHEET 2.

In verzior UNITED STATES PATENT OFFICE.

FRANK J. KAUFMANN', 0F .TRIBES HILL, NEW YORK, ASSIGNOR TO FOV INES BROTHERS & 00., OF LONDON, ENGLAND, A COPARTNERSHIP CONSISTING 0F WILLIAM GARDI- N ER R IGDEN, HENRY URWICK, W. FOWNES RIGDEN, E. FOWN ES RIGDEN, S. FOWNES BIGDEN, AND LESLIE ALAN SPALL.

POWDER-DISTRIBUTER.

Application filed October 9, 1918.

To all whom it may concern Be it known that I, FRANK J. KAUI-MAXN, a citizen of the United States, residing at Tribes Hill, county of Montgomery, and State of New York, have invented certain new and useful Improvements in Powder- Distributers, of which the following is a specification.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

The invention relates to powder distributers whereby the powder is ejected through a nozzle by the use of ablast of air or other fluid.

The preferred form of device shown in the drawings adapted for distributing powder from a container over the surface of a web of paper, textile or knitted fabric or similar sheet material.

The principal objects of the invention are to secure a. substantially uniform deposit of the powder upon all parts of the surface to which it is applied; and to prevent clogging of the Sifter-plate through which the powder is delivered to the blast of fluid whereby it is blown from the nozzle of the distributer.

Other obj cts will appear in connection with the following description.

Figure l of the drawings is a view in side elevation showing my improved powder-distributer in its application to a machine for coating the surface of a web of paper, cloth or similar sheet material with comminuted or powdered material.

Fig. 2 is a horizontal cross-section of the powder-distributer taken on the broken line 2-2, Fig. 3, viewed from above.

Fig; 3 is av central vertical section of the same taken on the broken line 33 in Fig. 2.

Fig. i is a top plan view of the sifterplate detached.

Fig. 5 is a top view of the brush for sweeping the powder across the upper side of the Sifter-plate.

Fig. 6 is a cross-section of the lower portion of the device taken on the broken line 66 in Fig. 2.

Referring to the drawings wherein the in ention is shown in preferred form, 1 is Specification of Letters Patent.

Patented Mar. 9, 1920.

serial 'No. 257,498.

a powder-container, preferably made of downwardly tapered form and mounted upon a base, 2, containing an air-chamber, 3.

The container is preferably removably mounted upon the base by .means of screws, 4, connecting together flanges, 5 on the container, and 6 on the base.

A perforated sifter-plate, 7, is removably mounted upon a seat, 8, on the base and forms a bottom for the container, 1.

. at air-sup iily pipe, 9, in fixed relation to the base, 2, communicates at one side of the base with the chamber, 3, extending there from downwardly and transversely beneath the chamber, 3, to the axial line of the base of the container, and then downwardly along said axial line forming a bearing-spindle, 10, rotatively mounted in the lower arm, 11, of a. bracket, 12, whereby the distributer is mounted upon a machine in connection with which it is to be used.

This supply-pipe, 9, contains an air-passageway which extends down through the bearing-spindle, 10. i

The bearing-spindle, 10, is connected with an air-supply pipe, 13, by means of a coupling. 11, which permits the bearing-spindle, 10, to be rotatively moved relatively to the supply-pipe. 13.

Air or other desired fluid can be supplied to the air-supply pipe, 13, under such pressure as may be desired, and the same will be transmitted through the pipe, 9, to the chamber. 3.

A delivery nozzle, 15, projects from the chamber, 3, on the side opposite that with which the air-supply pipe, 9, connects.

In the preferred form of my invention the sitter-plate, 7, is held in substantially fixed relation to the base, 2, with respect to rotative movement by means of a pin, 16, on the base which engages a notch, 17, in the edge of the plate. I

A vertical spindle, 18, is arranged axially within the container, 1, having at its lower end a bearing in the sitter-plate, 7, the upper end of the spindle projecting upwardly through the-top of the container, and being fixedly secured by means of a screw, 19, in the upper arm. 20. of the bracket, 12-.

A brush comprising a hub, 21, and a plurality of blades or vanes, 22, is slidably mounted upon the lower end of the spindle,

18, just above the Sifter-plate, 7 said brush having a pin-and-slot engagement at 23, with the spindle, whereby a limited vertical movement of the brush is permitted while rotative movement of the brush with respect to the spindle, 18, is prevented."

A coil-spring, 24, inclosing the spindle, 18, tends to yieldingly force the brush down upon the upper surface of the Sifter-plate, 7.

A relative rotative movement between the brush and Sifter-plate, 7, may be produced in any known manner, and will serve to sweep the deposit of powder across the upper surface of the Sifter-plate, preventing the powder from clogging the space above the sifter-plate, and causing the powder to be delivered through the Sifter-plate with substantial uniformity as to the quantity and the form as delivered to the chamber, 3.

In the preferred form shown, the brush isprevented from rotation by a pin-and-slot connection, 23, with the spindle, 18, while the Sifter-plate, 7, is rotatively moved in connection withthe base, 2, and the container, 1, as well as the air-supply pipe, 9, and the nozzle, 15; and such rotative move- K ment may be imparted in any known manner.

As a means for imparting such rotative movement, I have shown a link, 25, pivotally connected with-an ear, 26, projecting from the side of the container, 1, which link may be connected with any suitable moving part of the machine in connection with which the distributer is employed, whereby the container and parts connected to be rotatively moved therewith will be reciprocatorily move through a partial rotation. causing the nozzle, 15, to reciprocate through an arc of such length as may be desired.

As illustrating one use of my improved powder-distributer, I have shown in the drawings the distributer in its relation to a machine for applying comminuted or powdered material to the surfaceof a web of pa er, fabric or similar sheet material, the we 27 being fed from a roll, 29, to a roll, 30, with a stretch of the web between said rolls exposed to the action of the powderdistributer. l

The web may be treated in any known manner to cause the particles of powder or comminuted material to adhere thereto.

The oscillating movement of the nozzle, 15, of my powder-distributer causes the powder to be distributed throughout the width of the web.

' The'operation of my powder-distributer is as follows; I

A supply of. powder having been introduced into the container though the capcovered top-opening, 33. as the container and parts connected to rotatively move therewith are rotatively reciprocated, the owder in the lower end of the container 1s brushed k v over the upper surface of the sifter-plate, 7-, by means of the vanes, 22, causing the powder to descend in small quantities though the apertures in the .sifter-plate into the chamber, 3, while at the same time a blast of air or other fluid under-pressure is forced into said chamber through the air-supply pipe, 9, causing the powder to be forcibly blown out from the chamber, 3, through the nozzle, 15. a

The powder thus forcibly delivered from the nozzle, 15, is distributed upon the surface of the web, 27.

To more uniformly distribute the powder transverselyof the web and to prevent too great a deposit of powder upon the middle portion of the. web, I have provided for for an additional supply of powder to the edge portions of the web.

I have shown in the drawings a preferred form of air chamber, 3, having side walls WlllCll converge downwardly in cross-section to a channel or gutter, 28, substantially in line with the blast ofair from the pipe, 9,

to the nozzle, 15.

This form of chamber insures the immedlate delivery of the powder sifted through the plate, 7, into the path of the blast of air, thus preventin any accumulation of powder in the cham er.

What I claim as new and desire to secure by Letters Patent is:

1. In a powder-distributer andin combination, a powder-container; a Sifter-plate extending across the lower end of the powder-container; an air-chamber beneath said sifter-plate; means for supplying fluid under-pressure to said air-chamber; a nozzle extending from said air-chamber; .a brush adjacent to the upper side of said Sifter plate; and means for causing a relati e ro-" tative movement between 'said' brush and said Sifter-plate.

2. In a powder-distributer and in combination, a powder-container having a chambered base; a removable sifter-plate extending across the lower end of said container above said chamber, the upper side of said Sifter-plate being substantially plane and being provided with numerous small perforate openings; means for supplying fluid under-pressure to said chamber; a nozzle extending from said chamber; a brush adjacent to the upper side of said sifter plate; and means for causing relative rota- I live movement between said brush and said sifter-plate.

3. In a powder-distributor and in combination, a powder-container having a chambered base; a removable sifter-plate extending acrossthe lower end of said container above said chamber; means for supplying fluid under-pressure to said chamber; a nozzle extending from said chamber; a brush adjacent to the upper side of said sifterplate; a spring for yieldingly holding said rush against the sitter-plate; and means for causing relative rotative movement between said brush and said Sifter-plate.

4; In a powder-distributer and 1n combination, a powder-container having a cham- -bered base, said container and base being the; upper end of the container; an airsupply pipe connecting with saidchamber rotatively mounted upon a vertical axis extending longitudinally of the container; an

air-supply pipe and a nozzle both mounted upon. said base to rotate therewithpa'sifterplate extending across the lower end of said container above said chamber rotatory with said base and container; a brush adjacent to the upper side of said Sifter-plate; and means for imparting rotative movement to said base andcontainer.

5. In a powder-distributer and in combination, a powder-container having a chambered base; means for rotatively supporting 1n fixed relation to said base, and having a portion extending downwardly therefrom along the axial line of the container; a support on which said downward extension of the air-supply pipe has arotatory bearing;

1 a sifter-plate extending across the lower end of the container above said chamber; a brush adjacent to the upper side of said Sifter-plate; and means whereby rotative movement of said container and base causes a relative rotative movement between said brush and said sifter-plate. 7

6. In a powder-distributer and in combination, 'a rotatively mounted powder-container havin a chambered base; means for supplying uid under-pressure to said chamber; a nozzle extending from said chamber rotatory with said container and base; a Sifter-plate extending across the lower end'of said container above said chamber; a brush adjacentto the upper side of 1 said Sifter-plate; means whereby rotative movement of said container and base causes a rel-atlve rotatlve movement between said sifter-plate and said brush; a reciprocatory T container-rotating member and a slotted connection between said member and said container providing lost-motion at the beginning of the rotative movement of the container in each direction.

7. Ina powder-distributer and in combination, a powder-container having a chambered" base; a removable Sifter-plate extending across the lower end of said container above said chamber in fixed relation to said base; a. support; a spindle in fixed relation to said support extending downwardly through the upper end of the container forming a rotatory bearing therefor. and

tive movement to said container.

8. .In a powder-distributor and in combination, a powder-container having a chambered base, the walls of said chamber converging downwardly in cross-section to a channel or tter extending longitudinally of the distri uter; means for feeding powder from said container in limited quantities to said chamber; a fluid supply-pipe leading to said chamber at one end of said channel or gutter; and a nozzle leadin from said chamber at the other end of sai channel or gutter. In testimony whereof I have hereunto set my hand this 23rd day of September 1918.

FRANK J. KAUFMAlIN.

Images