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128 



The Florists^ Review 



August 21, 1018. 



t's Employers' Alafm 



Wright's Employers' Alarm Is a combination of electrical devices operated 

 by clock movement. It Is so mechanically constructed that It will sound a 

 continuous alarm within an hour of Its last operation. If the night man falls 

 to operate same, as It works with either closed or open circuit. 



The Alarm Is placed In the employer's or foreman's house (regdrdless of 

 distance) and is only sounded when the night man falls to perform his duty. 



The devices that turn In the alarm may be so adjusted by employer to 

 make it necessary for the night man to operate the Station Box at either 

 shorter or longer intervals than once an hour and thus prevent sounding 

 an alarm. 



The night man may operate the Station Boxes as often as he sees fit, but 

 can never go over a longer period of time than that specified by the employer. 



The Station Box Is operated by adjusting a revolving disk from the outside 

 by the aid of a watchman's key. 



Each Station Box may be equipped with a Daily recording sheet, if so 

 desired, upon which a record is made each and every time the watchman 

 adjusts the device, which would automatically (If not adjusted) sound an 

 alarm, then giving you a printed record for future reference. 



The mechanism of this Station Box is very simple and of the very best 

 material, and is so mechanically constructed that it is absolutely practical. 



It carries a two-year guarantee, but it will last years if given reasonable 

 care. All parts are standard and can be replaced on short notice with little 

 expense. 



REASONS WHY YOU NEED THIS ALARM CLOCK 



1. It cannot fall to notify you when the night man Is not 

 performing his duty. 



2. It is so mechanically constructed that it is impossible for 

 the night man to prevent an alarm being turned in If he is not 

 performing his duty. 



3. In case of emergency, the night man can reverse disk, 

 thereby sounding continuous alarm Instantly. 



4. In the event of sickness or injury, the night nlan being 

 unable to operate the device at the appointed time, the Boxes 

 will automatically sound continuous alarm. 



5. The employer may adjust an arm to give the night man 

 a longei or shorter period of time than an hour for making his 

 rounds. 



6. This Alarm Box may be adjusted as often as the night 

 man may see fit, but there cannot be a longer Interval of time 

 than that predetermined by the employer. 



7. If desired, you can place said Alarm Box in a secluded 

 place, so in case of the night man meeting with foul play, an 

 alarm will turn in without burglars' knowledge, thus enabling 



the employer to arrive on the scene before place could be 

 looted. 



8. These Station Boxes may be placed in your Boiler Room, 

 Office, Greenhouses, Mills or any desirable place where it Is 

 necessary for your man to be at regular intervals. They are 

 absolutely automatic, and will ring in on any failore of the 

 Night Man. 



9. The great Feature of this Alarm System is the fact that 

 you have the Alarm in your house, and It is absolutely Silent 

 as long as your man Is performing his duty, thereby letting you 

 sleep. Any failure on his part. It automatically turns in a 

 continuous alarm, awakening you and giving you a chance to 

 find out the trouble before your boilers are ruined or any seri- 

 ous damage has been done to your plant. In case of a steam 

 pipe breaking, your man in making regular rounds will And it 

 before your Entire Stock is Ruined. 



10. Your place can be equipped too cheap for you to take awy 

 chances. 



WRIGHT'S EMPLOYERS' ALARM COMPANY 



224 West 4th Street, LOS ANGELES, CAL. 



the air would be prevented. As reliance 

 might be placed upon the vent pipe, the 

 air might collect until circulation would 

 be impossible, and the temperature in 

 the house might drop until serious loss 

 might result. There have also been 

 instances >vhere the same results oc- 

 curred from the end of the vent pipe 

 being plugged up by mud wasps. If the 

 end of the pipe, or the water level, is 

 below the glass, there would be less ob- 

 jection to the plan, although mud 

 wasps might be troublesome. .^ 



The downhill system has two advan- 

 tages: First, it makes it possible to 

 connect the expansion tank with the 

 highest point in the system and thus 

 avoid the bother of vent cocks; second, 

 a better circulation can be secured than 

 with an uphill system. The circulation 

 in a hot water heating system depends 

 primarily upon the difference in weight 

 of the water in the flow pipe — that is, 

 between the boiler and the highest part 

 of the system — and that of the water 

 in the return pipes, or from the highest 

 part of the system back to the boiler. 

 The warmer the water in the flow pipes 

 and the colder it is in the returns, the 

 greater will be the difference in weight, 

 and the more rapid the circulation. For 

 this reason the distance between the 

 boiler and the highest point in the sys- 

 tem should be as short as possible, for 

 a given elevation, and the flow pipes 

 should be large, while the return pipes 

 should be small. However, it is not 

 well to have the return pipes too small, 

 or too long, as the matter of friction 

 must be taken into account. 



The elevation of the highest part of 

 the system also has much to do with the 



«« 



^X« 



RETURN 

 TRAPS 



Save condensation 

 and it's beat. 



Automatically return 

 both to boiler with 

 out pumping. 



Let US show you what "Detroit" Traps would save in your 

 coal bills— what they will do for your Heating System. 



Catalogue No. 362-FW upon request. 



American Blower Gompany 



" ■ DETROIT. MICH . ■ 



,U. S. A. 



Canadian Sirocco Company. Limited, Windsor, Ontario, Manufacturers for Canada. 



circulation, and it is far more rapid 

 when the flow pipe rises to a point con- 

 siderably above the boiler than when it 

 is but slightly elevated. 



There are three ways of improving 

 the circulation: First, lowering tiie 



boiler as suggested, which is to be 

 recommended if the expense will not be 

 too great; second, elevating the flow 

 pipe, or at least the highest point in 

 the system; third, attaching a mercurj 

 generator, which will make it posoible 



