Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918)
Keene, E. S. (Edward Spencer), b. 1864 · New York, McGraw-Hill book company, inc.; · leaf 355
illustrates theform of an iron-cased buzzer for ordinary duty. The workingparts are enclosed by a stamped steel cover that may be easilyremoved. The mechanism is quite similar to that already de-scribed in the doorbell and Fig. 240 shows in detail the work-ing parts. The noise, from which the… … Fig. 240.—Diagram of the vibrating mech-anism used in buzzers and doorbells. ELECTRICITY 345 usually in the form of a bell or buzzer placed in circuit with abattery, as a doorbell system, in which the contact piece isplaced to detect the opening of a door or window. The contactis arranged to start…
Heating · Lighting · Plumbing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
