in the Franklin Museum Journal
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announcement is the one that appeared in the Franklin Institute
Journal August 1899 regarding the Frick Electric Program Clock.
Electric Program Clock -
Frederick Frick, Waynesboro, Pa.
ABSTRACT - The invention is patented to
applicant by letters-patent of the United States, No. 534,948,
March 19, 1895 and No. 551,375, December 17, 1895.
The purpose of the invention is the
production of efficient mechanism by means of which certain
predetermined signals may be automatically brought into action,
by electrical devices, at times and places desired. This is
useful especially in schools, colleges and institutions, in
announcing time for studies, recreation, rising, retiring, etc.,
and for analogous service in manufacturing and business
establishments, where regularity is a necessity, according to a
The mechanism consists of a clock or
timepiece of good construction for keeping correct time, and of
a spring motor operating to revolve a disc of metal a portion of
a turn at short intervals of time, the disc having a series of
perforations arranged in concentric circles and in radial rows
with pins fitting in certain spaces of the same, which make
contact through a spring contact-piece, forming an electric
current and ringing a bell or bells.
The mechanical details could not be
explained without illustrations.
The report finds the meritorious
features of this apparatus to consist: (1) in the relieving of
the time-keeping mechanisms of almost all labor, the lifting of
the lever and the operation of the starting spring being all
that is required of it; (2) the substitution of a flat disc of
metal to carry the pins of the program contacts, which are seen
and inserted with great facility; and (3) the improved form of
the calendar switch in which the pins are readily changed, and
which are not in any electric circuit. These the investigators
believe, constitute an advance in the art.
Also, the investigators report the
satisfactory operation of these clocks in actual service, one of
them having been under personal observation of one of the
members of the Committee for four months, and to confirmatory
evidence from a member of those having the apparatus in use. It
relieves the head of the school institution of annoyance in not
having signals given promptly it all the attendant confusion
resulting from the want of a reliable signaling device.
The inventor is given the Edward
Longstreth Medal of Merit in recognition of the merits of his
program clock. [Sub-Committee-J.Logan Fitts, Louis Breitinger,
Hugo Bilgram, Wm. T. Lewis]
objects pictured above are part of The Franklin Institute's
protected collection of objects. The images are © The Franklin
Institute. All rights are reserved.)
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