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Publication numberUS3232038 A
Publication typeGrant
Publication dateFeb 1, 1966
Filing dateMar 23, 1964
Priority dateMar 23, 1964
Publication numberUS 3232038 A, US 3232038A, US-A-3232038, US3232038 A, US3232038A
InventorsIrving Smith
Original AssigneeWorld Time Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Clock apparatus
US 3232038 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 1, 1966 1. SMITH 3,232,038

CLOCK APPARATUS Filed March 23, 1964 Irving Smith BY %%W/ Y ZQWM ATTORNEY INVENTOR United States Patent 3,232,038 CLOCK APPARATUS Irving Smith, Bronx, N.Y., assiguor to World Time Corporation, Kings County, N.Y. Filed Mar. 23, 1964, Ser. No. 353,898 Claims. (Cl. SS-42.5)

This invention relates generally to horological devices and more particularly to a geographical clock apparatus adapted to enable the simultaneous observation of the correct time at various locations throughout the world, said clock being preferably of rectangular configuration and especially suitable for wall mounting in the manner of a framed painting or photograph.

More specifically, an object of the instant invention is to provide a colorful mercator projection of the world, including representations of land and water areas and selected geographic designations denoting specific cities at different latitudes, substantially all of said cities being spaced varying distances from the closest adjacent standard time zone boundary, each said city having a viewing Window immediately adjacent thereto wherethrough the particular time at said city may be observed.

A further object of the present invention resides in the provision of a world clock of the foregoing character wherein the local time is readily readable, is presented in relatively larger form than the time indications relating to the specific cities, said local time being observable in a position remotely disposed with respect to said specific cities- Another object of this invention is to provide a world clock wherein the local time may be expediently corrected to coincide with'time changes periodically instituted in accordance with the so-called daylight saving or summer time practice originally introduced in North America and now also use-d in Great Britain, said correction being corrected without requiring any movement of the clock mechanism.

Another general object of the. present invention is to provide a device of the described character which is simple in structure, economical of manufacture, easily and quickly installed and highly effective in use. v

Other objects and advantages of the instant clock apparatus will be set forth in part hereinafter and in part will be obvious herefrom, or may be learned by practice of the invention, the same being realised and attained by means of the structure defined and pointed out in the appended claims.

The accompanying drawings referred to herein and constituting a part hereof, illustrate one embodiment of broken-away form, a reel mounted continuous belt strip 'member carrying time designations being shown therebeneath and in partially fragmented form, and a clock mechanism in driving engagement with the reel upon which said strip member is mounted;

FIGURE 2 is a cross-sectional side elevation view of the clock apparatus taken along line 2-2 of FIGURE 1;

FIGURE 3 is an illustration of the various selectable insert members and their respective view-through areas which enable correction of the local time to standard or daylight saving time according to the time zone in which the clock apparatus is being utilized;

FIGURE 4 is a perspective view of a segment of the map memberin the region of the local-time viewing window portion, whereover an insert member is partially positioned; and

FIGURE 5 is a view as shown in FIGURE 4, the insert member, however, having been entirely removed.

As is well known, the earth is divided into standard time zones, each zone being 15 of longitude, or one hour of time, in Width, with the center of each zone an integral number of hours east or west of Greenwich, England.

In Canada and the United States, five standard time zones are employed. These are known as Atlantic (Maritime), Eastern, Central, Mountain, and Pacific, and

the centers of each are 4, 5, 6, 7, and 8 hours west of Greenwich, respectively. The boundaries of each zone are not set along meridians of longitude, but are determined by national, state, municipal, or commercial convenience. In 1916 the aforementioned daylight saving or summer time practice was introduced in North America. On this system each zone is shifted one hour toward Greenwich with Eastern Daylight Time being actually Atlantic Standard Time, Central Daylight Time being Eastern Standard Time, and so on across North America. A similar advance of the clock is used in Great Britain. 7

In consonance with the foregoing, the present clock ap paratus enables the simultaneous observation of the correct time at different world cities as delineated by the standardized timezones. Also afforded thereby is a local-time viewing window portion and means cooperatively associated therewith whereby compensation may be readily made for the-aforestated daylight saving or summer time? practice.

Referring now in detail to the present preferred embodiment of the invention illustrated in the accompanying drawings, FIGURES l and 2 show the clock apparatus designated generally by numeral 1 in the positions heretofore described. More specifically, the invention is comprised of a rectangular frame housing having back wall 2, side walls 4, 4 and end walls 6, 6, map member 8 being secured to said frame housing by glue, staples or other suitable manner and arranged in spaced, parallel relation with respect to said back wall as shown in FIG- URE 2 of the drawings. It will be appreciated that the map member ma? be formed of any suitable material,

such as plastic, cardboard or the like and is rendered translucent or opaque by the map except at the time window viewing portions, to be described hereinbelow, which are clear or which may consist of openings through *the. map member. The map member is further defined by obverse and reverse surfaces 10 and 12, respectively,said

obverse surface including representations of land and water areas and specific geographic designations, e.g., New York, Los Angeles, Caracas and Moscow, as shown, denoting specific ditferent cities at ditferent latitudes,sub-

stantially all of said cities being spaced varying distances from the closest adjacent standard time zone boundaries.

Time viewing window portions 14, referred to herein below, are positioned upon said map member adjacently of said specific cities, the correct timeat each of'said cities being concurrently observable at said window portions 14. Additionally to providing the times at said different cities, the present invention also provides'a' localtime viewing window portion designated by numeral 16,

through area 28 provided thereon, each said areas being positioned one hour apart, respectively. Each said insert' member has. an. exterior surface 30 including geographic representations v of land and water areas, these geographic representations being in corresponding alignment with the geographic representations surrounding local-time viewing window portion 16 and appearing on the obverse surface of said map member.

To-the end of retaining one of said insert members in overlying superposed relation with respect to said localtime viewing window portion, securing means 32 is provided upon the obverse surface of'said map member, said securing means eing comprised of upper and lower spaced, parallel channel elements 34 and 36, respectively, said elements being arranged to straddle said local-time viewing window portion as shown. It will be understood that the securing means herein shown and described, While preferable, is not intended to preclude the use of other suitable insert member securing embodiments considered within the contemplation of the invention, such as, magnets, hooks, cementitious adhesives, etc.

With reference now to FIGURE 4-, it will be seen that insert member 18 is removably receivable within securing means 32, it being appreciated that insert members 2}), 2:2, 24 and 2 6 are each similarly receivable therein as well, in view of their mutual identity of dimensions. As aforestated, view-through areas 28 of said respective insert members are one hour apart, this being the only variation thereamong. This variation, and the selection of the proper insert member for placement within said securing means, will permit expedient adjustment of the local-time observable at the local-time viewing window portion to correspond with the daylight saving or summer time being observed, e.g., in the United States. More specifically, where Eastern Daylight Saving Time is being observed, insert member 18 will be inserted; if Eastern Standard Time or Central Daylight Saving Time is, being observed, member 20 will be used; if Central Standard Time or Mountain Daylight Saving Time is being observed, member 22 will be inserted; if Mountain Standard Time or- Pacific Daylight Saving Time is being observed, member 24 will be inserted; and if Pacific Standard Time is being observed, insert member 26 will be used.

Continuous belt strip member 38, characterized by a width substantially equal to the width of map member 8 is movably mounted within said frame housing and beneath said map member, approximately one half of the external surface of said strip member being juxtaposed against the reverse surface 12 of said map member at, any given time, portions of said strip member being visible through said time viewing window portions 14 and-:local-time viewing window portionof said map membet, Reels 40 and 42 having coaxial bearing stems 44 positioned endwise thereof are rotatably mounted within said frame housing intermediate back wall 2 and map member 8., said bearing stems being freely journalled within sockets provided as shown within side Walls 4, said reels being accordingly disposed in mutually parallel relation and transversely of said side walls. As shown in FIGURE 1- of the drawings, reel 40 is provided with sprocket ds peripherally and inwardly, of the ends thereof, said sprockets being adapted to register with sprocket perforations 50 provided adjacently of the edges of said strip memben Thus said strip member will orbit around both reels as shown by arrows 51 of FIGURE 2.

I Arranged upon the external surface of said strip memheris. a plurality of scaled elongated indicia bands 52 of twenty-fourhour time indicia, saidindicia being critically disaligned, shaded and arranged in the manner described in detail in my, United States Patent No. 3,002,337 issued. October 3, 1961, which defines an embodiment of a cylindrical strip member, the indicium of which, is substantially similar to the present strip member.

,Electric clock 54 which is driven by the usual synchronous electric motor employed in electric clocks is mounted upon side wall 4 of said frame housing as shown in FIG- aaoss URE 1. A drive shaft 56 extends from the motor and projects into the housing. A gear 58 terminates the kinematic train and meshes with gear 68 which is secured coaxially of reel 40. The clock 54- together with the kinematic gear train terminating at said gear 58 constitute a twenty-four hour clock mechanism. The connection between the clock mechanism and the reel includes a conventional friction clutch (not shown) so that the clock can be set by manipulation of set shaft 62. Accordingly, the clock mechanism through engagement with reel 40, is coupled to said strip member to thus occasion movement thereof.

As shown, the longitudinal axes of the bands of said strip member are disposed in parallelism with respect to the direction of movement of said strip member, said bands being spaced apart transversely of their longitudinal axes, each different band being registered with at least,

one different time viewing window portion and. each of said window portions having a band registered therewith, each band having the time indicia associated therewith so oriented with respect to the time indicia of theother bands and to the associated viewing window portions as to show by the time indicia of each such band the correct time for each city at the respective viewing window portions immediately adjacent thereto.

A special band 64 of enlarged proportion relative to the size of bands 52 is provided upon said strip member, said band 64 carrying local time indicia, said indicia being observable through the view-through area 28 provided upon said insert member. Band 64 is, as illustrated, parallel with respect to plurality of bands 52 and is endowed with the structural characteristics thereof with the exception of size, band 64 being relatively larger than bands 52 thereby facilitating the reading thereof andemphasizing the presence thereof.

Although the preferred embodiment of the clock apparatus has been described, it will be understood that within the purview of this invention various changes may be made in the forms, details, proportions and arrange ment of parts, the combination thereof and mode of operation, which generally stated consists in a device capable of carrying out the objects set forth, as disclosed and defined in the appended claims.

What is claimed is:

1. A clock apparatus comprising in combination, a housing, a map member positioned across the breadth and width of said housing, said map member having obverse and reverse surfaces, said obverse surface including representations of land and water areas and specific geographic designations denoting specific different cities at different latitudes, substantially all of said cities being spaced varying distances from the closest adjacent standard time zone boundaries, said map member having viewing window portions adjacently of said specific cities, and a local-time viewing window portion situated remotely of said cities, an insert member superposed with respect to said map member in the region of said localtime viewing window portion, a selected portion of said local-time viewing Window portion being visible through a view-through area provided upon said insert member, securing means provided upon the obverse surface of said map member adjacently of said local-time viewing window portion, said insert member being removably receivable within said securing means, a strip member characterized by a width substantially equal to the width of said map member, a portion of one surface of said strip member being juxtaposed against the reverse surface of said map member and visible through said viewing window portions and local-time viewing window portion, respectively, means mounting said strip member for movement with respect to said map member whereby th Surface of the former can move with respect to the reverse surface of the latter, a twenty-four hour clock mechanism and means coupling said mechanism to saidstrip member, said strip member having on said juxtaposed.

surface thereof a plurality of scaled elongated indicia bands of twenty-four hour time indicia, the longitudinal axes of said bands being disposed in parallelism with respect to the direction of movement of said strip member, said bands being spaced apart transversely of their 1ongitudinal axes, each different band being registered with at least one different viewing window portion and each of said window portions having a band registered therewith, each band having the time indicia associated therewith so oriented with respect to the time indicia of the other bands and to the associated viewing window portions as to show by the time indicia of each such band the correct time for each city at the respective viewing window portions immediately adjacent thereto and -for the local time observable through the view-through area provided upon said insert member.

2. A clock apparatus comprising in combination, a housing, a map member positioned across the breadth and width of said housing, said map member having obverse and reverse surfaces, said obverse surface including representations of land and water areas and specific geographic designations denoting specific different cities at different latitudes, substantially all of said cities being spaced varying distances from the closest adjacent standard time zone boundaries, said map member having viewing window portions adjacently of said specific cities, and a local-time viewing window portion situated remotely of said specific cities, an insert member slidably superposed with respect to said map member in the region of said local-time viewing window portion, said insert member having an exterior surface including geographic representations of land and water areas, the geographic representations being in corresponding alignment with the representations included upon that portion of the obverse surface of said map member underlying said insert member, a selected portion of said local-time viewing window portion being visible through a view-through area provided upon said insert member, securing means provided upon the obverse surface of said map member adjacently of said local-time viewing window portion, said insert member being removably receivable within said securing means, a strip member characterized by a width substantially equal to the Width of said m-ap member, a portion of one surface of said strip member being juxtaposed against the reverse surface of said map member and visible through said viewing window portions and local-time viewing window portion, respectively, means mounting said strip member for movement with respect to said map member whereby the surface of the former can move with respect to the reverse surface of the latter, a t-wenty four hour clock mechanism and means coupling said mechanism to said strip member, said strip member having on said juxtaposed surface thereof a plurality of scaled elongated indicia bands of twenty-four hour time indicia, the longitudinal axes of said bands being disposed in parallelism with respect to the direction of movement of said strip member, said bands being spaced apart transversely of their longitudinal axes, each different band being registered with at least one different viewing window portion and each of said window portions having a band registered therewith, each band having the time indicia associated therewith so oriented with respect to the time indicia of the other bands and to the associated viewing window portions as to show by the time indicia of each such band the correct time for each city at the respective viewing window portions immediately adjacent thereto and for the local time observable through the view-through area provided upon said insert member.

3. A clock apparatus as set forth in claim 2 wherein said securing means provided upon the obverse surface of said map member is comprised of upper and lower spaced, parallel channel elements, said elements being arranged to straddle said local-time viewing wind-ow portion.

4. A clock apparatus comprising in combination, a frame housing of rectangular configuration having back, side and end walls, a map member secured to said frame housing and arranged in spaced, parallel relation with respect to said back wall, said map member having obverse and reverse surfaces, said obverse surface including representations of land and water areas and specific geographic designations denoting specific different cities at diiferent latitudes, substantially all of said cities being spaced varying distances from the closest adjacent standard time zone boundaries, said map member having viewing window portions adjacently of said specific cities, and a local-time viewing window portion situated remotely of said cities, an insert member superposedwith respect to said map member in the region of said local-time viewing window portion, a selected portion of said local-time viewing window portion being visible through a viewthrough area provided upon said insert member, securing means provided upon the obverse surface of said map member adjacently of said localtime view-ing window port-ion, said insert member being removab-ly receivable within said securing means, a continuous belt strip member having sprocket perforations adjacent at least one edge thereof, said strip member being characterized by a width substantially equal to the width of said map member, a portion of one surface of said strip member being juxtaposed against the reverse surface of said map member and visible through said viewing window portions and local-time viewing window portion, respectively, means mounting said strip member for movement with respect to said map member whereby the surface of the former can move with respect to the reverse surface of the latter, a twenty-four hour clock mechanism and means coupling said mechanism to said strip member, said strip member having on said juxtaposed surface thereof a plurality of scaled elongated indicia bands of twentyfour hour time indicia, the longitudinal axes of said bands being disposed in parallelism with respect to the direction of movement of said strip member, said bands being spaced apart transversely of their longitudinal axes, each different band being registered with at least one diiferen-t viewing window portion and each of said window portions having a band registered therewith, each band having the time indicia associated therewith so oriented with respect to the time indicia of the other bands and to the associated viewing window portion-s as to show by the time indicia of each such band the correct time for each city at the respective viewing window port-ions immediately adjacent thereto, and for the local time observable through the view-through area provided upon said insert member.

5. A clock apparatus as set forth in claim 4 wherein the local-time viewing window portion of said map member registers with at least five consecutive hour indicia of the scaled elongated indicia band of twenty-four hour time indicia in registry therewith.

References Cited by the Examiner UNITED STATES PATENTS 1,999,126 4/ 1935 Gardner 58128 2,025,590 12/1935 Jaenichen et a1. 177--3-8 3,002,337 10/1961 Smith 58-44 LEO SMILOW, Primary Examiner.

G. F. BAKER, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1999126 *Sep 11, 1933Apr 23, 1935Gardner Herbert FWatch or clock dial
US2025590 *Jan 19, 1934Dec 24, 1935Standard Computing Scale CompaWeighing scale
US3002337 *Aug 8, 1957Oct 3, 1961Irving SmithWorld clock
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3852949 *Jun 8, 1973Dec 10, 1974Sayler RPlural cycle display device
US4307458 *Nov 13, 1978Dec 22, 1981Lin A OscarWatch for displaying multiple world times
US6275449 *Aug 7, 1998Aug 14, 2001Richard WangWorld clock with synchronous display
US8221125Aug 13, 2009Jul 17, 2012World View Time Inc.Electronic presentation of world time zones
US20110151415 *Aug 13, 2009Jun 23, 2011World View Time, Inc.Electronic presentation of world time zones
Classifications
U.S. Classification368/25, 968/168, 368/191
International ClassificationG04B19/23, G04B19/00
Cooperative ClassificationG04B19/23
European ClassificationG04B19/23