US1756744A - Coating machine - Google Patents

Description

April 29, 1930. c, .T HAT H 1,756,744

COATING MACHINE Filed March 16, 1.928

INVENTOR 1i f/m'r/cs 7 flak/Z A TTORNE Y5 Patented Apr. 29, 1935 CHARLES T. HATCH, 0F ALBION, MICHIGAN, ASSIGNOR T0 UNION STEEL PRODUCTS GOME'ANY, OF ALBION, MICHIGAN COATING MACHINE Application filed March 16, 1928. Serial No. 262,165.

My improved coating machine is especially designed by me for the greasing of baking pans and I have illustrated the same in this application as adapted for that purpose. Certain features of my improvements are, however, desirable and readily adapted for use in machines for spraying or coating objects with other materials than grease.

The main objects of this invention are:

First, to provide an improved machine whereby pans or the like may be readily and evenly sprayed or coated with material such as grease.

Second, to provide a machine of the char acter described in which the desired amount of grease may be very accurately gauged.

Third, to provide a machine of this chara'cter which is easily operated and is of large capacity.

Fourth, to provide a machine of the class described by means of which circular baking pans may be uniformly coated.

Objects relating to details and economies of my invention will definitely appear from the description to follow. The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is illustrated in the accompanying drawing, forming a part of this application, in which:

Fig. 1 is an end view .of my coating machine, the cabinet being shown in vertical section from front to rear.

Fig. 2 is a detail section on line 22 of Fig. 1.

Fig. 8 is an enlarged detail section on line 3-3 of Fig. 2.

In the drawing similar reference. characters refer to similar parts throughout the several views.

Referring to the drawing, I provide a cabinet designated generally by the numeral 1 and of such dimensions as to house the main parts of the machine. In the upper part of this housing, I suspend a tank 2 for grease such as lard or other'suitable material. The heating means for this tank is not illustrated.

Extending longitudinally of the tank is a supporting bar 8 on which is 'a'djustably mounted a plurality of nozzle supporting brackets 4, these brackets being secured upon the bar by means of clamps 5. On each of these brackets I mount a nozzle designated generally by the numeral 6. These nozzles have tubular spindle portions 7 rotatably supported in the brackets, the spindles having air passages 8 therein connected by the flexible conduits 9 to the supply conduit 10.

The nozzles are provided with axially disposed fluid conduits 11 depending into the tank and provided with screened intakes 12. By disposing these conduits axially, a minimum of agitation is occasioned on rotation of the nozzles, this being of advantage in view of the fact that in greasing baking dishes, crumbs are likely to be dislodged and fall into the tank where they settle at the bottom and this rotative movement of the intake does not disturb them.

The nozzle is provided with a central fluid discharge tip 13 and a pair of air discharge tips 14 disposed oppositely and operatively associated with the fluid tip so as to atomize fluid and discharge the same in a fan-like spray;

To oscillate the several sprays simultaneously, I mount pinions 15 on the spindles thereof in coacting relation to the rack 14,, recipr-ocatingly mounted in the supporting bar 3, so that when this bar is reciprocated, the several nozzles are simultaneously oscillated on their vertical axis.

The rack bar actuating means in the structure illustrated consists of a pinion 16 mounted at the end of the tank to ooact with the rack, this pinion having a beveled gear 17 connected thereto, meshing with a beveled gear 18 which is connected by the link 19 to I the arm 20 on the rockshaft 21. This rockshaft is controlled by a mechanism which is illustrated and described in detail in my application for Letters Patent filed May 1, 1926, Serial No. 106,025. The motor is designated by the numeral 27, the driving connections for the motor to the gear 31 being controlled by a clutch designated generally by the numeral 22. This clutch is operatively connected through the lever 23 and the push rod 24't0 the pan table 25. This pan table is adapted to receive pans 26 which are illustrated as circular pans. The operator, placing a pan on the table, pushes 'downwardly thereon and this through the clutch connection described, actuates the clutch to drive the gear 31. This gear is provided with a wrist .pin 32 connected by the pitnIa-n 33 to an arm 34 on the rockshaft 21.

This same mechanism controls the air valve 28 which controls the delivery of air from the pressure tank 29 to the conduit 10, the valve being controlled by a cam 30 on the rockshaft 21, the valve mechanism being that shown in my said application for patent. 7

With this arrangement, the air control valve and the-nozzle are synchronously actuated so that a fan-like spray is delivered to the pans, the nozzles being oscillated at 180 degrees thereby completely and uniformly coating the pans. 7

My improved coating machine is simple and durable in its parts, is of large capacity and very easy to operate. 5

I have not attempted to illustrate certain other embodiments or adaptations which I contemplate as I believe this disclosure made will enable those skilled in the art to which my invention relates to embody or adapt the same as may be-desired. 7

Having thus described my invention, what I claim as new and desire .to secure by Letters Patent, is:

1. In a structure of the class described, the

combination of a tank, a plurality of spray nozzles adapted to deliver fan-like sprays disposed in alignment and mounted for rotative movement, said spray nozzles being provided with axially disposed fluid intakes depending into said tank, an air supply conduit, flexible connections for said air supply conduit to said nozzles, a control valve for said air-conduit, a cam operatively associated with said control valve, a pan table disposed above said tank, means for actuating said cam controlled from said pan table, pinions on said nozzles, a reciprocatingly mounted rack operatively associated with the several pinions, and operating connections from said cam to said rack.

2. Ina structureof the class described, the I combination of a plurality of spray nozzles adapted to deliver fan-like sprays disposed in alignment and mounted for rotative movement, an air supply conduit, a control valve for said air conduit, a cam operatively associated with said control valve, a pan table disposed above said tank, means for actuating said cam controlled from said pan table, pinions on said nozzles, a reciprocatingly mounted rack operatively associated with the several pinions, and operating connections from said cam to said rack.

i. In a structure of the class described, the combination of a plurality of spray nozzles adapted to deliver fan-like sprays. disposed in alignment and mounted for rotative movement, an air supply conduit, a control valve for said air conduit, pinions on said nozzles, a reciprocatingly mounted rack operatively associated with the several pinions, and means for synchronously operating said valve and rack. I

5. In a structure of the class described, the combination of a tank, a plurality of spray nozzles adapted to deliver fan-like sprays mounted for rotative movement and provided with axially disposed fluid intakes desending into said tank an air su 3 l conduit flexible connections for said air supply conduit to said nozzles, a control valve for said air conduit, means'for simultaneously rotating said nozzles, and operatingconnections for said nozzle actuating means and saidicontrol valve whereby they are synchronously operated. 7

6. In a structure of the class described, the combination of a tank, a spray nozzle adapted to deliver a fan-like spray rotatably mounted on an axis ina plane parallel with the plane of the spray and provided with a fluid intake depending into said tank, a pan table disposed above said tank, and means for simultaneously opening said valve and rotating said nozzle controlled from said pan table. V

In witness whereof I have hereunto set hand.

CHARLES T. HATCH.

Images