1977-04-15
1978-09-26
Witkowski, Stanley J.
58152T, G04B 4702, G04F 106
Patent
active
041159977
ABSTRACT:
A timing attachment is secured to one side of a telephone instrument to indicate the elapsed time of a telephone conversation. The timing attachment or timer has an hourglass contained within an elongate cylinder which has an arm extending from the center thereof pivotally attached to a base member. The base is adhered to the side of the telephone instrument or other convenient surface. The cylinder and hourglass therein is rotated in a substantially vertical plane 180.degree. at a time to allow the sand or other material to flow from one end of the hourglass to the other to measure a predetermined elapsed period of time. Various automatic indicating means cooperate with the cylinder to indicate the total number of minutes or time periods which have elapsed during a telephone conversation. The indicating means may be a rotatable cap with indicia around the periphery thereof in successive increments of the predetermined elapsed time periods corresponding to the number of times the cylinder has been rotated. The indicia may be on the cylinder visible through one or more windows in an opaque cap. The indicia may be on the male stud of the base member which are successively uncovered after each 180.degree. rotation of the cylinder. The indicating means may include a wheel pivotally secured to the base member with actuating cogs which are engaged by at least one upright post on the cylinder.
REFERENCES:
patent: 2078603 (1937-04-01), Felstein et al.
patent: 2765033 (1956-10-01), Uhr
patent: 2941350 (1960-06-01), Rogovin
patent: 3120735 (1964-02-01), McMeans
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