US1971104A - Agitating means for wire screen during galvanizing process - Google Patents

Description

Aug. 21, 1934. s HARTER 1,971,104

AGITATING MEANS FOR WIRE SCREEN DURING GALVANIZING PROCESS Filed April 18, 1932 2 Sheets-Sheet l jv'm 0 r Aug. 21, 1934. N. s. HARTER 1,971,104

AGITATING MEANS FOR WIRE SCREEN DURING GALVANIZING PROCESS Filed April 18, 1932 2 Sheets-Sheet 2 7 l ENE )[H u T Patented Aug. 21, 1934 UNITED STATES PATENT OFFICE Noah S. Harter, Waukegan, Ill., assignor to Cyclone Fence Company, Waukegan, 111., a

corporation of Illinois Application April 18, 1932, Serial No. 606,051

2 Claims.

The invention relates to improvements in the method of fabricating wire mesh screen with more particular reference to novel apparatus for use in the processing of the material. After re- 5 moval of the wire screen from the looms or weaving machines it is processed in order to increase its resistance to corrosion and render it substantially rust-proof. This consists in first cleaning the material by passing the same through receptacles containing acid or other cleaning solutions and then subjecting the material to a galvanizing bath. The proximity of the wires forming the small openings in the screen presents suflicient surface tocause the cleaning,

16 galvanizing and other liquids through which the material is passed to adhere because of capillary attraction to the material, completely closing the openings in the same, and as the wire screen in the form of a continuous web passes successively from one bath to another the liquids are withdrawn in great quantities rapidly depleting the supply.

The present invention is concerned with means for causing draining of the liquids from the material immediately as the same leaves the various baths and more particularly to means that will operate to relieve the screen of the liquids in a manner to conserve them so that they can be returned to their respective receptacles.

Accordingly, an object of the invention is the provision of improvements in the method of processing wire cloth and the like which will be more economical by reason of the saving cf- 36 tected in the quantity of processing liquids required A further object is to provide novel means for draining the liquids adhering to material such as wire cloth after it has passed through a processlng bath which will be simple in construction and which can be applied without requiring a change or modification of any kind to existing apparatus.

With these and various other objects in view,

46 the invention may consist of certain novel features of construction and operation as will be more fully described and particularly pointed out in the specification, drawings and claims appended hereto. 1

In the drawings which illustrate an embodiment of the device and wherein like reference characters are used to designate like parts- Flgure 1 is a sectional view taken longitudinally through a part of the apparatus used. in

as processing wire screen, showing the same (C1. ill-12.1)

equipped with the improvements of the present invention;

Figure 2 is a fragmentary elevational view of the apparatus shown in Figure 1 and showing the preferred manner of operating the agitating means of the invention, and

Figure 3 is a plan view of the apparatus shown in Figure 2.

For the purpose of illustration the present in vention is shown as applied to a plurality of receptacles 10, 11 and 12, respectively, each receptacle having associated therewith upper rollers 13 and a lower roll 14, the latter being suitably journaled within and located adjacent the bottom of the receptacle. The receptacle 10 is filled with a cleaning solution for the purpose of cleaning the wire screen 15 which passes over the upper rolls and under the bottom rolls and in this manner is subjected to contact with the solution. In the event that the wire screen has first been cleaned then the receptacle 10 may be considered as forming a galvanizing bath containing a hot zinc solution for hot galvanizing or zinc sulphate if an electro-galvanizing process is in operation.

The web of. material leaving the receptacle 10 passes over the upper roll 13 and roll 16 suitably journalled in supports secured to the uprights 17 and then enters the receptacle 11 which may be considered as furnishing a water bath for the same. This is the case irrespective of whether the wire has been previously subjected to an acid solution for cleansing purposes or to a galvanizing bath. Water supplied through pipe 18 is sprayed on the material as it leaves the receptacle, the latter providing a sump tank for the water. The final operation in the processing of the wire screen is the coating of the same with vamish,'aiter which the screen is passed through a drier and then wound upon forms containing suitable lengths for shipment. Receptacle 12 maybe considered as containing the supply of varnish to which the material is subjected as it passes-through the same and under roll 14. Roll 20 suitably mounted for rotation on supports 21 is driven by means of the driving chain 22 suitably connected to a source of power and meshing with sprocket 23 on the roll. Through rotation imparted to the roll 20 the web of material is caused to travel through the various receptacles described for processing the cloth.

Journalled in brackets secured to uprights 17 is a shaft 24 extending the width of receptacle 11 and having secured at one end crank 25 con necting with rod 26. Rotated by roller 20 is a disc 27 provided with a plurality of studs 28 suitably spaced around the outer edges'of the disc and adapted to engage the bent end 30 of rod 26. By means of the coil spring 31 secured at one end to the rod and at its other end to support 21 the rod 26 isheld under resilient tension, maintaining end 30 in engagement with studs 28. Arm 32 secured to shaft 24 is held against stop 33 by the coil spring 34 secured at one end to the arm and adjustable in bracket 35 by means of the bolt 36.

In accordance with the present invention the shaft 24 has suitably secured thereto a plurality of wire forms 37 forming the agitators for the wire screen. In operation as travel is'imparted to the web of material through rotation of roll 20 disc 27 is likewise rotated, causing the particular stud 28 in engagement with end 30 to actuate rod 26, imparting rotation to shaft 24. The rotation of the shaft is in a direction to elevate the agitators 37 as shown in dotted lines, Figure 1, raising of the forms out of contact with the material being accomplished against the tension of spring 34 which serves to impart clockwise rotation to the shaft as will be clearly understood from Figure 3. Further rotation of disc 2'1 will efiect disengagement oi the rod 26 with stud 28, whereupon shaft 24 will be under the influence of the spring 34 to thus impart downward movement to the wire forms. This striking of the material by the wire forms agitates the material, causing any moisture or liquid adhering thereto to drop onto the tray 38 which serves to return the liquid so collected to the receptacle 10. As the material is constantly moving successive portions are located under the wire forms 37 and between the rolls 13 and 16 so that the entire length of the material is subjected to vibration or agitation by means of the actuation imparted to the wire forms as described.

' are retrieved so that none are carried by the screen into adjacent receptacles. Considerable saving is thus eiiected in the quantity of cleansing solution or galvanizing solution required for processing the material, This economy in operation is particularly noticeable in the saving effected in the quantity of varnish required for finishing the material, since solutions of this nature have a high naphtha content and it is desirable that the liquids carried over by the wire screen be removed therefrom in a manner preventing vaporization of the naphtha. It is in this respect that the present invention results in additional operating economy as the liquids are removed in a manner preventing their loss by vaporization and facilitating their return to replenish the supply.

It is to be understood that I do not wish to be limited by the exact embodiment of the device shown, which is merely by way of illustration and not limitation, as various and other forms of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In apparatus for processing wire cloth, in

combination, a receptacle containing a. liquid forming a bath, a web of cloth supported by the receptacle in a manner to subject a portion thereof to the bath, said web having movement through the bath, means agitating the cloth as it leaves the bath to retrieve the liquid adhering thereto including beaters, resilient means holding the heaters in contact with the cloth, a connecting rod having a hooked end and connecting with the heaters at the end opposite thereto, and a cam wheel driven by the mechanism moving the cloth, the hooked end of the rod engagaing with the cam surfaces of the wheel and being released thereby to cause alternate raising and release of the heaters.

2. In apparatus for processing wire cloth, in combination, a receptacle containing a liquid forming a bath, a web of cloth supported by the receptacle in a manner to subject a portion there of to the bath, said web having movement through the bath, means agitating the cloth as it leaves the bath to retrieve the liquid adhering thereto including beaters, resilient means holding the beaters in contact with the cloth, a connecting rod having a hooked end and connecting with the beaters at the end opposite thereto, a cam wheel driven by the mechanism moving the cloth,

and resilient means holding the hooked end of the rod in engagement with the cam surfaces of the wheel, said hooked end being alternately engaged and released by rotation of the wheel to thereby cause a raising and releasing of the beaten.

NOAH S. HARTER.

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