May, 1937] Agrictjltueal Research in N. H., 1936 19 



motor was then connected by a 58" "V" belt, (cost $.85) to a 61/2 "V" 

 pulley, (cost |.80) mounted on the inside arbor of the grinder head. 

 On the other arbor of the grinder head a l"x8" carborundum stone, 

 (cost $3.45) was installed. 



The proper tension on the V-belt was provided by allowing it to sup- 

 port the weight of the motor which was suspended from a lower cross- 

 bar between the legs of the frame by a strap hinge arrangement. A 

 screw attached to the motor platform and made adjustable with a 

 lock-nut under the platfoiTO, provided for raising and lowering the 

 motor to decrease or increase the belt tension according to need. 



By this drive the 1725 r.p.m. of the motor is reduced to about 500 

 r.p.m. on the grinder head on which the carborundum stone is mounted, 

 and again reduced to about 83 r.p.m. at the grindstone. If this is too 

 fast operation, a bit larger, 8" diameter or even 9", pulley on the inside 

 arbor of the grinder head will provide speed correction. 



The total cost of the remodeling exclusive of labor and motor was 

 less than $8.00. 



The advantage of this type of unit is dual-purpose grinding equip- 

 ment, carborundum wheel and grindstone, on which rough grinding 

 find finishing can both be accomplished. The "V" belt drive is both 

 ciuiet, steady and positive. (State Fund) 



Wax Heating Equipment for Poultry Dressing 



Inability to locate commercially made wax-heating equipment suit- 

 able for dressing poultry in small batches, caused the design and con- 

 struction of a unit for test and demonstration. 



To simplify the equipment, reduce the initial cost, and, at the same 

 time, present a design that poultrymen might duplicate themselves, 

 materials that could be easily secured were employed by W. T. Ack- 

 erman and G. M. Foulkrod. 



An ordinary galvanized 12-quart pail was used as a receptacle for 

 the wax. This was arranged to fit into the round, open top of a 5-gal- 

 lon electric dairy hot water heater of 1,000 watts capacity at 110 volts. 

 Several makes of this type are on the market. This method makes use 

 of the double boiler principle which is valuable to maintain a steady 

 wax temperature, simplify the temperature controlling mechanism and 

 reduce the fire hazard. (Extreme care should be exercised in heating 

 ^\ax over open flames.) A mercury bulb thermostat with the bulb 

 placed in the wax was used as a controlling device. 



The thermostat once set for the desired temperature of the wax will 

 operate on about a 1 degree temperature variation, and the water bath, 

 responding rapidly to the large heating element, keeps the wax within 

 a degree of the desired temperature under normal use for a small num- 

 ber of birds. 



Equipment of this type may be used for either scald picking or wax 

 picking. A fan was found to hasten drying after scalding, and between 

 dippings of the fowl in the wax, {State Fund) 



