US1654296A - Equipment for wireless receiving or transmitting apparatus - Google Patents

Description

Dec.v 27, 1927.

s. LOEWE 1654296 EQUIf-MENT FOR WIRELESS RECEIVING OR TRANSMITTING APARATU Filed Aug. 26. 1921 ly Elepwne ana/@MM ATTO/Mfrs Patented 27, 1921.

UNITED As'ra'rlszs PATENT lo rlf'-icr..

sIEGMUND Lonwn,v or BERLIN, GERMANY, AssrGNon 'ro wEs'rINeIzoUsE me a MANUFACTURING courANY, A conroEArIoN or PENNSYLVANIA.

EQUIPMENT FOB WIRELESS RECEIVING 0B TBANV'KSHITTING Application med August 26, 1921, Serial No. 495,783, and 1n Germany December 20, 1915.

(enum Inman :um `raovIsIolsrs-or THE Aer or nnen a, 1921, 41 sur. L., ma.)

My present invention relates to the practical construction of receiving or transmitting apparatus for wireless stations. Wireless receiving apparatus generally contains rather complicated connections, so that anyone openinolthe apparatus must take considerable troule to trace'out such connections. To facilitate this work various colours have been appliedto the various circuits, lfor example, the conductors of the antenna circuit have becncoloured green, those o'f'th'e secondary circuit red and'so on.I "l

My present invention discloses a new procedure. To exemplify this, the apparatus appertaining to the secondary vcircuit, such as coils, condensers and' switches, when required, would' be combined-'into one independent Whole, likewise' all parts of the aperiodic circuit by themselves, likewise all parts appertaining to the antenna circuit by themselves, and finally all parts appertaining to a separate testdevice, if present, by themselves.

An embodiment of m invention isillustrated by way of examp e in the accompany;-k

ing drawing, wherein Fig. 1 is a perspective view showing an assembly of the independent apparatus elements.

Fig. 2 is a perspective view of a modified embodiment offmy invention.

Fi 3 is still another modification.

Re erring to Fig. 1 the antenna coil 1 and the antenna connection 2 are mounted in a box 10, the secondary coil and accessories in a box 11, the telephone 4 and detector 5 in a box 12, the test clrcuit 6 in a box 13 and the tertiary circuit in a box 14. The boxes 10 and lll-can if desired be placed alongside one another.

Broadly speaking, a receiving equipment according to the present invention consists of a succession or series of independent apparatus-elements, which can be manufactured singly, which permit of independent testing, and which may be-exchanged as desired :tor other ap aratus-elements either similar or of a diiierent kind. They are parts complete in themselves, which enter v into electrical relation with one another only by special proximity. An arrangement yoi this kind is shown diagrammatically in the drawing.

What can be obtained in the way of novel effects may be shown b the example. Here the associated parts o the antenna circuit are mounted in a box, likewise the assot ciated parts for the aperiodic circuit. If the two boxes are simply placed alongside one another the usual primary receiving is effected.4 If the boxes are shifted apartand .there is placed between them a box containmg the parts of the seconda eircuit,'sec ondary receiving isvelfected. f it is desired to effect tertiary receiving, one simply places in between them a box containing the tertiary circuit.

' The improvement obtained can be here only indicated. In addition to the great ease of inspection there is the most important advantage that it is possible to adapt the 'receiving apparatus to suit the immediate occasion. It is possible to select from the various receiving methods that which is the most advantageous in a particular case. For example should the operator when receiving be suddenly seriously disturbed with a long wave, he can interpolate a secondary circuit for receiving the desired wave throu h the combination of a very large self in uction with a ver small condenser. Hereby the long wave 1s weakened to a far greater extent than the wave being received. If a disturbance Ifrom a very short wave suddenly arises, the operator, if he has laced, beside and somewhat to the right o the antenna box, the secondary circuit and aperiodic circuit, would place to the left and alongside the antenna box another secondary box, which he tunes to a very short wave whereby it is brought about that energy oi the disturbing wave is branched off toward the latter box and there dissipated. The above embodiments of the invention are only explanatory examples intended to show what novel effects can be brought about by the invention. To what an extensive degree the proposed receiver construction may. be employed will be understood from`the fact that, for example, the chief of a military station has it in his power to adapt the wireless receiving apparatus of his station to the capacities of his stai of operators. If his staii' is capable of being trusted with the a paratus he will place at their disposal t e box for secondary receiving. If onthe" otherhand he has to deal with an untrained personnel, he will limit himself to permitting primary receiving and'will lock up everythin not appertalning thereto.` It need here onl lbe mentloned that one of the errors most to e feared, in particular with apparatusfitted out for primaryandsecondary receivin is that the staff, when exploring, shouldI al ow the secondary circuit to be connected in owin to ignorance of the fact that this circuit y its selective action` lets through paratus-element must be mounted by itself 1n a separate box, it rather suices by the nature of the present invention that the 1n- `dividual circuits are separately combined with one another, while it is immaterial whether for this purpose the secondary circuit is mounted in a box or on a removable plate, or is set in an insertable frame. No one will obviously carry the principle to inexpediency by, for example, carrying the sub-division so far that, for the production of comparatively simple arrangements, the frequent connectingI together of small single elements is necessary. 'The constructional sub-division would rather conveniently end where such is justified for electrical reasons, for example, to suit each closed circuit. Thereby the very economical -advantage is obtained that one can deal with other electrical dimensioning such as becomes necessary, for example, when employing two different sized antennae on one station, only one other box being inserted for the other antenna while for everything else, the secondary and aperiodic circuits, may be retained.

Those versed in the art will be able to easily decide upon the most desirable arrangement of the apparatus-elements 'ory parts separable from one another in such manner that when the element/s are brought into juxta-position with one another they will enter into the correct electrical relation so that those elements, e. g. the coils, which are intendedto execute an inductive transfer one to another, are correctly placed relatively to one another when the apparatuselements are brought into proximity or combined. Separability does not exclude the contingency that when combination occurs, parts of one apparatus engage into those of the other e. g., contacts of adjusting devices into 011e another. These are requirements constructively easy to be fulfilled.

'. I Figure 2 shows a modified embodiment of my invention in which the operating keys lar one to the other. Accordin Ato Figure/ 3 the keys are arranged on di erent part-s of the horizontal and the vertical wall of the casing respectively. .Further the upper plate 15 at the right hand of Figure 3 is enabled to be opened so as to be used as a table for writing purposes.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed -I decla-re that what I claim is:

1. The combination in high frequency signaling equipment of a plurality of findividually separable self-contained units each comprising a closed circuit and radio apparatus associated therewith, said units -beinfr capable of operating conjointly for sigvna ing purposes when placed in` proper mutual space relation.

2. The combination in high frequency signaling equipment of a plurality of individually separable self-contained units each 4comprising a box containing a closed circuit and the radio apparatus associated therewith, said units being capable of operating conjointly for signaling purposes when placed in proper mutual space relation.

3. The combination in high frequency signalino equipment of a plurality of individua 'ly separable self-contained units each comprising a box containing one or more closed circuits and the radio apparatus associated therewith, all of said units being capable of operating conjointly and others of said units being capable of operating in conjunction with one or more of the others of said units independently of certain other or others of said units.

4. In a radio system, a plurality of different circuits, means associated with the respective circuits for performing the usual radio operations, and consolidating structures securingeach circuit and its associated means together to form a unit, whereby the several units may be separately moved, each as a whole, to enable any selected units to be brought into cooperative relation.

5. In a radio system, a plurality of stages, each stage including the means for performing one step in the transformation of signals, consolidating structures constituting each of said stages into a unit, whereby the several units can be separately moved, each as a whole, and thereby any predetermined combination of stages may be properly positioned for cooperative action.

In testimony whereof I affix my signature.

DR. SIEGMUND LOEWE.

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