Bracket Fan Hanger. 



Bell Ringer and Whistle Blower. Single Turn Attachment Plug. 



Recent and Improved Devices 



Fixture for Hanging Bracket Fans 

 With the approach of summer and 

 electric fan season many electrical man- 

 ufacturers are introducing not only fans 

 but fixtures for use in connection with 

 them. One of the most practicable of 

 these is an adapter plate which can be 

 used in conjunction with a special out- 

 let box. 



As shown in the sketch, the outlet box 

 cover is provided with a bolt that serves 

 to hold the adapter plate. The bolt 

 passes through the upper screw hole of 

 the plate as well as through a hole in 

 the rim of the fan base, at a point op- 

 posite the fan switch. Both the plate 

 and the fan are held in place by a washer 

 and nut placed on the bolt. It is a sim- 

 ple matter to remove the fan at any time 

 for cleaning or repairs. 



Ringing Bells and Blowing Whistles 

 Automatically 



It will no longer be necessary for 

 some one person to keep a watch on 

 the clock and always be on hand to blow 

 whistles or ring bells at certain times, 

 for there has been placed on the market 

 an equipment which takes care of these 



Space does not permit these interesting devices to 

 be described at greater length. However, any reader 

 desiring more detailed information concerning devices 

 described in these columns can secure it upon request. 



tasks. The device is an electrical one 

 and functuates by means of a perfor- 

 ated paper ribbon. 



The automatic bell-ringing and whis- 

 tle-blowing device or program instru- 

 ment is operated by electric current. It 

 has no delicate parts to get out of order. 

 The schedule is controlled by a paper 

 tape which is printed in divisions of time 

 and punched at the points where contact 

 is to be made. Each tape can take care 

 of two schedules. The instrument will 

 automatically change and operate the 

 same signals on different schedules on 

 different days, and will automatically 

 cause any schedule to remain silent on 

 any day or days desired. If it is desired 

 to change schedules on account of sea- 

 sons or other causes, such changes can 

 be made in a few moments by the sub- 

 stituting of a fresh tape punched for the 

 new schedule. The program instrument 

 is connected in a circuit controlled by a 

 master clock, which sends out minute 

 impulses. 



A New Type of Attachment Plug 

 A new type of attachment plug has 

 recently made its appearance and which 

 has for its main feature extreme sim- 

 plicity and convenience. It can be placed 

 in any receptacle with but a single turn. 

 As may be seen in the illustration, the 



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