US1546675A - Automatic radiolog - Google Patents

Description

July 21, 1925.

L. E. RENNEY wrom'nc mmonoe Filed Jan. 26, 1925 1NVENTOR E. Renney BY MA-A. a ATTORNEY Patented July 21, 1925.

UNITED sures PATENT OFFICE.

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AUTOMATIC aamonoe.

7 Application filed Ianuary 26, 1825. Serial No. 4,904.-

To all whom it amber n:

Re it known that I, LYLETON E. RENNEY, a CilZIZGIL of'the 'United States, residing at Stockton, county of San Joaquin, State of to provide a readily attachable and detach-.

able and interchangeable chart element on which may be entered a logfor readily and quickly and automatically finding the different essary or bringing in any certain station through the receiving apparatus. I

By means of ,my improved log the finding positions on the dials for-different stations may be charted and when once definitely charted for the receiving set in a given loca tion, thereafter the log may be used in bringingin such stations without the "necessity of close tuning each time it is desired to locate such station.

A further object of the invention is to produce a simple ,and inexpensive device and yet one which .wilt be exceedingly effective for the purpose 'for which it-is designed.

These objects I accomplish by means of a such structure and relative arrangement of parts as will 'fully appear by a perusal of the following specification and claims.

In the drawings similar. characters of r'eference indicate corresponding parts in the several views: i Fig.- I is a perspective View of a frag- "inentary portion of a receiving apparatus showing my improved log installed thereon ready for use in service.

Fig. 2 is a -front elevation of the chart element arranged for use in connection with the receiving set for logging the stations, as will be hereinafter described.

log.

ositions of the condenser dials nee"- Fig. 3 is a perspective view of a straightedge element used in connection with my Fig. 4 is a fra enta sectional view on aline'44ofFi ;1. ry

Referring now more particularlyto the characters of reference on the drawings, the letter A designates a typical radio re-. celvmg apparatus on which are the condenser or station'finding dials 2, 3 and 4 res ectively.

t is to be understood that my improved log may used in connection withreceiving apparatus'of various, kinds and of different constructions, the chart element-being differently constructed to be accommodated thereto, as will be apparent from the following description. 11 My My improved device comprises a. semiflexible element 5 which may be of cardvh ard or any similar material which will idily receive writing upon its surfaceb 'i ne lower edge of the'element 5 is cutout:v ornotched as at 6', 7, and 8 respectively to provide. bearing and engaging'portions 'tofit over the bearing pins 9'fof the: dials 2, etc. The outer edge of the member 5 is prefer ably cut to be circumferential with of the dials 2, 3, and 4 respectivelyso that the finished productisdn efi'ect' th ijeesemicircular elements 1", 1", and 1 cennected together by adjacent webs 10, each of the semi-circular elements being of greater diameter than the diameter of the'dial in connection with which it is to be used.

a A small straight edge 11 made of thin i celluloid or any other desired material is' "as will presently appear.

When the device is to be used in connec tion with the receiving set the'dials are set on their pins so as toleave a slight space 12 between the dial and the face of the panel of the receiving apparatus A. My improved chart element 5 is then inserted back of the dials and the notches 6,'7 and 8 fitted over. the pins 9 of the dials. There being a close fit between the dials themselves and the chart 5 and the panelof the receiving set, this holds the chart from displacement straight edge 11 adjacent each dial over :is then used to draw a line 15 from the inthe chart in the manner indicatedfor 4 Thus the chart element is in constant fixed position with respect to the dials and even ceiving apparatus from a certain position of the latter is accomplished in the follow- "ging all the stations which can'be Brought in over the receiving apparatus other charts that the charts can be used at willfor bringthe handling ofradio receiv transversely from the panel. The notches 6, 7 and 8 fitting over the pins act as bearing elements and prevent the displacement of the chart longitudinally of the panel.

also permit a much finer tuning cf the apparatus to be ,had, since after certain Well known stations have been logged then the apparatus can be used so that the index lines on the dials may be worked between the log lines of already charted and logged though different charts be interchanged the stations and in this way different and thererelative position of each of the dials will tofore uncharted stations may Zllways be the same whenever the charts are tuned in and logged. positioned back of the same. The faces of The celluloid members 11 being thin, they the different circular elements 1, 1 and 1 are ruled with circular lines 13 concentric with the dials, as a matter of convenience. although these may desired.

The use of the chart in logging the different stations to he brought in over the rebe dispensed with if handy when wanted. a

From the foregoing description it will he readily seen that I have produced such a the invention as set fortnherein.

While this specification sets forth in do ing manner: The elementfi, W nothing tail the present and preferred construction written on its face other an h 'e of the device, still in practice such devia lines, is inserted back of the dials and fitted {i s fr m uch d t il may g'gsol'ted flj in position over the pins. The seve al d s as do not form a departure froinzthe spirit are then moved to tune or bring in a oerof the invention, as defined by the appended tain station in the most efiective manner. claim3 I Each of the dials has on it a master indicat- Having thus described my invention what ing index line 14. When the station has I claim as new and useful and desire to been closely tuned the user then moves the cure by Letters Patent is:

the face of its corresponding circular member to line up with the corresponding index ber arranged to fit'immediately adjacent the line 14. A pencil or other writing element tuning dials of the ap zaratus, said dials each hav ng an index-mark thereon adjse dex line on the dial across the face of the chart. and the indicia 16 for the station which has been tuned in is then written ad- {acent that line. In this connection the ines 13 serve as guides for the user, sothat he may write the indicia 16 in such a manner that the chart when. finally logged will have a neat and symmetrical appearance. As each new ordifl'erent station is'tuned in this operation is repeated until the chart is completely logged with all-stations desired. If one chart is not suflicient for logdial-circle, and point marks may be made op said chart adjacent the dial mark, and means perms ."lently mounted with the charts for enabling radiating lines to be drawn outwardly on the charts from the point- Iiiarks made thereon.

" ceiv ing apparatus comprising a chart memher arranged to fit immediately adjacent each having an index-mark thereon adjamay be interchangeable thelWlillL.

' It will be apparent that after all stations ferent stations said mark will aline with are duly logged III the manner'indlcated different portions of the chart around'the ing in any of the logged stationsinstantly on said chart adjacent the dial mark, and a without any close-tunin lines line up with the station lines made on axes of the dials, whereby on turning said the straight to register with each pointlparticular to mark made on the chart, a substantially ring 111.

$.l' n which is desired .The utility'offmy improved log-gin nil chart wardly fromvsaid mark. ed in V apparatus, in 'COI1I'lT 6Ct10n.Wlbh radio reeeivin and its simplicity, interchangeahilrtygslnd V tus having a plurality of tuning positiveness will also 'beself evidentj 'chart-elernent hein r arr-an.

In addition'to the obvious advantages to T ably jmounted bee: at a l the dials, and

will be entirely obvious to those is ials, such be gained by its use, the thereof .will means'for mrintaining a constant relation device as substantially i illills the objectsoi cent its edge whereby when tunin for dif- I H ferent stations said marl: will a fine with different portions of the chart around the the tuning dials of the apparatus, said dials radial line may 'be drawn on the chart 0ut- Asingle'logging chart element for use rippers-- be gradually (lo/not occupy any appreciable transverse space, and may thus be permanently associated with the chart so as to be always 1. A station logging means for radio ceiving apparatus comprising achart niern- 2. A stationlogging means for radio rtecent its edge whereby when tuning for difdial-circle, and pointmarks may be -made g of the apparatus straight edge for each chart 'permanently, merely by moving the dials unt l theindex pivoted thereon adjacent the plane of the d to'be rernow between the chart and the dials so that after logging indicia has been recorded on the chart in co-operation with each of the dials, thereafter such indicia will always assume the same position relative to the dial corresponding thereto whenever the chart is inserted back of the dials.

10 having a plurality of tuning dials mounted to cause the 'chart element to assume and 15 hold the sarrielposition relative to the dials each time it is inserted behind the same.

In testimony whereof I affix my signature.

L-YLETON E. RENNEY.

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