File:Florists' review (microform) (16061863714).jpg

Title: Florists' review (microform)
Identifier: 5205536_30_1 (find matches)
Year: [1] (s)
Authors:
Subjects: Floriculture
Publisher: Chicago : Florists' Pub. Co
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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June 6, 1912. The Weekly Florists^ Review. 13
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Show Case of Pennock Bros^ Pliiladelplifa, G)o!c(I by Artificial Be&igcration. nine inches long, eighteen inches high and four inches wide, were placed, and the ammonia expansion pipes led into them. Each tank was cooled by 100 feet of 1-inch pipe, bent zigzag and arranged in seven rows each fourteen feet long. One barrel, or 350 pounds, of calcium chloride salt was dissolved in enough water to fill these four tanks, making a Weak solution, Sp. gr. 1.05, with a freez- ing point just below 26 degrees Fahr. The idea was to freeze this solid and have a result similar to that obtained with ice. How It Works. It works out admirably in practice. At 8 a. m., when the store is opened, the machine is started in operation. The temperature in the cases at this time is found to be just about as it Was left the night before, around 45 degrees. The water in the vases is then renewed and fresh flowers put in. The doors are opened constantly for quite a while, and the temperature rises in the <!ase8 sometimes as high as 60 degrees. This will naturally vary at the different Seasons of the year, depending upon the temperature of the room and the Water supply. The cases are soon brought down to the desired tempera- ture, and toward evening the tanks will have frozen solid again. The machine '8 then stopped and remains so over "ight, and generally over Sunday. Once ^r twice, under exceptional conditions, It has been found desirable to run a short time on that day. The results have been satisfactory, and the avoidance of the bother and trouble of handling ice is in itself justi- fication for making the change. There have been no breakdowns or repairs to interrupt the service, but there is a balance on the profit side of the ledger, in addition. The proprietors have or- dered that the machine be overhauled every year—a preventive measure. Cost of Operation. This is the way the account stood for the first year: Cost of electric power ;301.07 Overbaullng and new oil 10.00 I nterest at 5 per cent 62.00 Depreciation at 10 per cent 104.00 1467.07 As compared to Ice SOI.00 Sa¥in«- 9 S4.00 There are no depreciation charges here shown against the use of ice. Un- doubtedly there should be, for everyone who has had experience in getting in ice daily in large quantities knows how the cases and refrigerator boxes are sure to be bumped, scratched and broken. Also ten per cent depreciation against the whole cost of installation has been al- lowed, including motor and wiring. This is liberal and should no doubt be re- duced. The motor used is a three horse-power Fort Wayne 220-volt, direct current. A test shows it to be taking about two kilowatts of electricity as a steady in- put. It is belted direct to the driving pulley of the machine, which runs at 280 revolutions per minute. Sliding Doors an Advantage. Mr. Lloyd concludes his description by saying: "Particular attention is called to the doors of this case. They are sliding, in preference to hinged doors. Sliding doors, if they are to open easily, cannot be tight, and this is a great disadvantage usually on re- frigerators. In this case, however, where the difference in temperature be- tween inside and outside of the cases is not so great, the sliding doors are preferable. Every time a swinging door is opened, the separating wall to the full size of the doorway is removed, and in addition a suction is created which draws a large volume of the cooled air out of the enclosed space. Where the doors are to be opened fre- quently, this is a large item and a severe drain on the cooling system. In this instance the sliding door can fre- quently be moved a foot or so and allow ample opening for the removal of flow- ers. The disadvantage of looseness around the door casings is more than made up by the other advantages." A Little Less Technical. Some of Mr. Lloyd's details are a little bit technical. What the retail florists will want to know is whether or not the machine is satisfactory to the florist. It is. Pennock Bros, say so, and the fact that they still are using it

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