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Publication numberUS1826437 A
Publication typeGrant
Publication dateOct 6, 1931
Filing dateJan 7, 1925
Priority dateJan 7, 1925
Publication numberUS 1826437 A, US 1826437A, US-A-1826437, US1826437 A, US1826437A
InventorsLarsen Paul J, Lazarus Shapiro
Original AssigneeRca Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Radiocabinet with adjustable loop
US 1826437 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

O 1931- L. SHAPIRO ET AL 1,826,437

RADIOCABINET WITH ADJUSTABLE LOOP Filed Jan. 7; 1925 2 Sheets-Sheet 1 24 Fig. 1

(June/44 60,

LAZARUS SHAPIRO 3: PAUL J. LARSEN Oct. 6, 1931. 1.. SHAPIRO ET AL 1,826,437


PAUL J. LARSEN H vide a radio cabinet with a'swinging hollow panel in which there is built a loop aerial.


Patented Oct. 6, 1931 U E F TA S learner @FFHCE J I DELAWARE Y I 1., AND rem. J. LAB-SEN, or cnanronn, NEW JERSEY, assrenons'ro name CORPORATION or AMERICA, A conronerron or nnnrocnnrnnr wrrn ADJUSTABLE LOOP Application filed January 7,1925. Serial N 0. 945.

Ourinvention relates to cabinets which have radio apparatus incorporated therein and which areprovided with adjustable loop receivingaerials and which may or may not have ordinary phonograph apparatus also incorporated therein. ,7 I An object of our inventionis to provide a radio cabinet withan 1 adjustable loop aerial builttherein. Y I

Another objectof our invention is to pro- 1 A' further object of the invention is to provide a radio cabinethaving anadjustable loopfmounted in a hollowpanel in such manner that when the panel is closed, the appearance of the cabinet will be artistic and pleasing.

Other objects will be apparent from the following description and claims when considered wlth the accompanying drawings,

in which Fig. 1 shows a perspective viewof the radio cabinet with its hollow paneland loop aerial, the cover of the panel being partially brokenaway to show the loop and panel construction. I I I Fig. 2 shows a detall of the lower hinge construction illustrating the manner in which the hollow panel ismounted on the body of the cabinet in order to allow it to swing 180.

I loop. frame.

Fig. 3 is a further detail showing the upper ,hinge construction andthe manner in which one side of the loop is connected to the hinge.

Fig. 4 is another view of thedetail shown in'Figr2', but showing also the manner in' which the other side ofthe loop-is connected 'to the hinge.

Fig; 5 shows in perspective one of the winding blocks. I

Fig. 6 shows a cabinet provided with a hollow panel in which is-mounted a detachable loop stru'c'ture. I v I Fig. 7 is an end view ofone corner of the Fig. 8 shows in perspective the form of structure. I I

I the loop corners of which angle blocks 16. Within the-winding space.

winding block used with 'th'edetachable 100p thereof. Mounted within the Fig. 9 is a plan view of one'of the notches in the winding blocks.

Fig. 10 is a perspective of the side of the radio cabinet showing the hollow panel with I therein, the panel being in'the closed position. i

Fig. 11 is a fragmentarycros -s ction line 1111 of Fig. 10.

Referring to the modification "shown in Figs. 1-5 inclusive, A denotes a cabinet body provided with achamber 1 in the side thereof to accommodate the hollow panel B when the latter is in closed position. Mountedon the cabinet body 'A' is the hollow panel B comprising panel body 5 and the cover. 4 detachable therefrom by removing screws 71. The hollow panel B is mounted by means of hinge 2 and limit hinge 3.

The panel body 5 is composed of side members 7 and 8, top member 9 and bottom memberlO, connected together to form a rectangular space as shown in Fig. l. Fastened to the front slde of these members is the front memher 6." Side members 7 and 8, top member 9 and. bottom member 10' are suitably rein- Fastened to the front member 6 are rectangularly arranged members 12,13, 14 and 15, the are suitably reinforced by forced at their corners by angle bl'ocks 11.

between the outer rectangularly arranged members 7, 8, 9 and 10 and the inner rectangularly arranged members 12, 13, 14 and 15 lies the loop winding denoted generally by L. The loop winding isheld in place by means of winding blocks 17 two sets of which are provided at'cach, corner of the hollow panel. csets G, D, E, and Fare shown in Fig. 1, it being not necessary to'show the other four sets, as all sets are identical.

As these sets and manner of mounting are identical, only one set, F, need be described in detail. F astened to the inner face of front 6 are two strips 18 and 19, forming the groove 20 therebetween. A groove 21 running from the front 6 to the back of the hollow panel B near the i end groove. 21 and groove 20 is the first winding block 17 mountis formed in the member 14 win'din g 25 bl'ockiarid-inco-extens ve'groove 2t in the i 5 {sure goqdie'lectrmr contact between the lIIlQV ableand stationary partsofboth hinges l vpintle 34. Stationary me1nber'32 is secured some lower 'Wall 50- Of ChdDTI bGI I111" any convenient manner;

ed thatthe notches 22 ironi f the groove 21.

'Each'vvindmg block 17 has a groove 25 in "one end. After the first layer of Winding L is placed in "is placed contiguous p a e block in? tllQi'gIfOOV-Q 20.-

small: rrcf pm 24;;

the notches 22 of the first Winning block-of every set in themanner hereinafter explained, a second inding block 17 to the first Winding is fOrcedinQthe grooves .25 v of the first and second winding ."second block in place Then the second layer 0 the second Winding ner similar 'tq the; second inding Care shouldt'be exercised to" keep ad acent- 1 position and-thenplacing layers'of Winding jintheirnotfches indingisplaced in last Winding block except in'g' extending in, theflast winding blocks Off Se siDff fid' E, an i dihg e pp @1i i1'1ge2-Li of Winding L is placed in the notches '22 of block and the third Windingblockis placed in position in a inaili '7 i '7 "bloc;

' p n-s" space- 1i from each other for the 'purall possible losses;

pose e11 inating I v placing Winding blocks in The: p beesser V continuestill the last Wind ing block of a set is rea ched. This "is held inposltiiocri byw means of the groove; 20 and the pin fittingi' 7 gr'oove'25 oithe last Winding topj9.' V

the notches of the I the'end 26 of Wind- The upper hingel2 see particularly and ajs cbmposed' or a stationary "member '28 v and a: 'niovable" member 29 seen-red together by pintle 30.4The stationary'ln'emb'er 28 is secured to the upper wal'l160 of chamber 1 by l any' convenient ineansfas by screws (not sh w itfo'top 9110f panel B in a recess 61 by means i .ifof scre The movablefniein'ber 29 is secured we 62:; Surrounding the p'intle 30 is 1 a 31"resi'hently urging thenienih'ers I v part a d,iat the same time; urging 'n'iernbe :32 andie aei hinge 3 together 'to'ine "tom: 10. Pivotedto member 33by means ot a 2' and 4; is composed ofstationary member'sa and movable 7 member 33 connected together asjby' inea'nslof screws 51; Thearnovable. inenibe'r isxsiniilarly secured t0;a recessed portion: 52, otbotpivot 53, is limitrnember 35 having a slot '54 .ee p m i limit hinge with post 55 ,on-mei'nb er 32. The gaallows a ldegreeiswing of panel B.

To 'vvind the} 1501,, as tad '23 (5i at was than s; 'starte'd atfhinge" 3 by twinge 1 Inake; electrical contact Iv'vith melnber I33,

blocks 17. a 1191p 110161 by j clampinga itbetvveen. nen ber33. ,andthebot tom 10, The wneae then passes out mama passage 63and is led in a clockwise direction by first 'having'it engage the notch 22} ad- I jacent thelfront 6 of the first winding block 170i: the set cessively engage D. The Wire is thenled to sue the .notch occupying the same'positionof the other sets of winding blockstil'l this particular notch position in the first block of each set is filled. Then the wire led to thenent notch ofthe first Winding block of 'setiD-and this notch positionis filledin each of the's ets; and soon till all the notches of the first Winding blocks "17 ofall the-sets are filled.

The second inding block now placed in position asexplained above. The Wire-is thenled to the notch turthest renioved'fro-in front 6 of the second -Windin:g

blockof set D, and the'secondlayer ofloop L is Wound in a' similar manner to thelfirst layer."

The third layerisbegiinatjthe notch nearjest the front 6 of the third windingblock of set D, and so on-ti'll the number of layers de a sired is completed. Four layers are-shown f v the drawing}; TlieendIQ G, ofjivinding L' ISel GCi' from the-notch furthest rein'o'ved from front 6 er the fourth block notches-of the of each set is p fifth or'last- Wind-ingblocks,toa passage 27 extendingtoinernber29 ofhinge 2. The end 26 of thewvire isclan'iped between nieinfber 29 a and top 9' to "obtaina goodconductive relation. V w e Awire'ZOextending froin stationary niein- H be'r 32ot'hinge 8' anda'siinilar Wire (not. shown) extending from the stationary meniber 28 of hinge 2 provide electrical connec-, tion to radlo apparatus (not shown) 'ivithi'n the cabinet body A. e V

Figsi 6 to 11 inclusive show a preferre'deinbodiment; It consists of. a cabinetbody A having acha'niberlOl in onesid'ethereo f:for

the reception of ahollowv panel j The hol- 10w panel comprises a panel body '1 052and a cover 104, detachable therefronij by removing 108,109 and 110 reinforced at the" corners by blocks 11 1; i Thefront 106iof theipanel body 105 is fastened; to the se rectangular nienibers at their front' sides. The-panel B is swing ingly mounted on cabinet body A- hyeineans of hinges 102 and IDS-identicalWithjhinges f2 a11d .3-in}the firstinodification. "lhlejcon-c struction thus far is similar to the construcliIOIl'SllOWIl inliig. l.

Instead. of havlngthe loop tvindiiig built in the hollow panel directly,'a preferred enibodilnent provides a structure in Which-the screws 130. The panelb'0dy 105 isconstru'ch ed of'rectangularly arranged members 107,

loop is first Wound on afraine 112, which is detachable from the hollowpanelfbody 100,

by removingthe cover104.

y The fra ne'1 12 s composed of'four rec-v V tan-gularly arrangedineinbers 1 13 strengthened atthe cornersby'blocks 11 i. ;At.eac11 corner of'the frame 112 arei rnountedtw'o sets .of the loop.

shown'are designated C, D, E, F, G and II, the setshidden of winding blocks 124 shown in detail in Figs. 8 and 9. Each of these winding blocks is provided with a plurality of -shape grooves 115 whose edges are suitably rounded to prevent abrasion of the insulation on the'wire The sets of winding blocks by the fragment of cover 104 being of identical construction and mounting 1117 and 117'.

means of hollow rivets 118 are plates 119, 120 and 121 to provide Similarly fastened I means of hollow rivets 118 are plates 119,-

out of the hollow pails of grooves 122, 122 and 123,

as the other sets. As the mounting of the sets of these winding blocks at each corner of the frame 112 is identical, the mounting at but one corner will be described in detail.

Fastened by means of screws 116 to the front and back sides of the rectangularly arrangedmembers 113 at each corner are plates Fastened to each plate 117 by rooves 122 and 123. to each plate 117 by F and is anchored to the rear plates 117 and 121 by means ,(not shown) similar to themeans used to anchor the other end 128 in rear plates 117 and 128 explained below more in detail. The first winding block 114- is placed n each pair of grooves 122, 122 and 123, 123 and the wire is then wound around in' a counter clockwise direction in the notches in the first set of blocks in a manner similar to that explained in regard to Fig.

l. When the first layer of tee winding is completed, another set of'bloclzslis slipped ,into the pairs of grooves, 122, 122 and 123, 1.23 and a second layer of loop 'Ihisis continued until all the blocks are in position,- and the last layer is wound. The winding is led from the last turn of the last layer through openings 125, 126 and 127 in the plates 117 and 121 between sets C and D tosecurely anchor it there. 'Ihc winding is lead out thru hole 125, back thru 126 and then out again thru hole 127. The ends 128 and 131 of the loop winding are led to the hinges in a manner similar to the construction shown in Fig. 1. g

It will easily be seen from the drawings, particularly Fig. 10, that when the hollow panel B is closed, the cabinet will present a "pleasing appearance similar in all respects to a similar cabinet having no loop but an ordinary fixed panel inthe position of the swinging panel. The adjustability of the hollow panel allows the loop to be placedin plane most advantageous for receiving from av given station.

each member, and a multiple layer winding completed.

.Altho we have described several specific embodiments of our invention we realize that manyother embodiments may also be built ,according to its teachings. We therefore are recessed panel by said blocks.

2. In a loop aerial construction, the combination of a recessed panel member,,a hinged mounting for one edge of said panel i'nernl'xer i whereby said panel .is adapted to swing through an arc of 180, a plurality of blocks positioned at right angles to each other in each corner of said. panel member in said recessed portion, and a loop winding securedr? in the recessed portion of said panel member by means of said blocks.

3. A loop aerial comprising, "a winding, a plurality of blocks mounted one upon the other for supporting said winding in a multilayer combination, supporting means for said winding blocks, and means whereby'said multidayer winding holds said winding blocks in position 0 said supporting means.

4. A loop aerial comprising a frame liar-i lng rectangular arranged members, a plurality of sets of winding blocks, means for mounting said sets on said frame, there being a set of blocks substantially at the end of supported by said blocks, said winding having its individual layers spaced ly said blocks.

5. In a radio cabinet, a hollow panel body, a loop aerial in said body, said loop aerial comprising, a plurality of spaced layers of winding, winding blocks between. said layers, and means for mounting said blocks in said body.

6. A loop aerial comprising frame members, plates at the ends of said members for securing them together, winding blocks, said plates being provided with means for holding winding blocks, and a winding mounted on said winding blocks.

' loop aerial comprising frame members arranged to form a polygon, a pair of plates at the junction of every two adjacent sides of said polygon, 'said plates having means for providing block-receiving recesses, winding blocks in said recesses, and a winding supported by said winding'blo'cks.

8. In a loop construction, the combination of a recessed panelmember, a hinged mounting for one edge of said panel member where- I by said-panel isc-a'dapted to swing through v anarc of 180,a plurality of blocks mounted r in the recessejdp'ortion-of said'panel member 7 and about the periphery thereof, a Winding supported by sai'd'blocks and'adapted to fo'rm f afmultiple layer loop', and a connection b'e- -tween the free ends 'of said inding andsaid hinged mounting, -Wl1f61eby said hinged My mounting'for'ms a point'of connection to said 10 spaced multiple layer 100p: V p

V 9. In a loop aerial construction, the'c'om- 'binationof a recessed panel member forming a support, a plurality of blocks'mounted in the corners of, said'panel' member, a plurality'z of notches-1n each of said hlock s,i'a second set" of'blo'c'ks of 'like characteristics to said 7 first: named blocks adjacenteach of said first {named blocks, and f a j inding extending I e F through-the notches of all of said blocks and 1, adapted to forma space 'd'mnltiple layer loop.

" 10. Inaloop aerial construction, the combination of'a recessed panel member, a plural+ ity ofbjlocks' mounted insaid recess and about the periphery of said panel member, each of said blocks being'provide'd with notches, and i Winding extending through the notches oi each-of said lolock's and about the periphery ofsaid recess panel member and adapted to form when passed through the notches of all i 0t said blocks 'a-spaced'inultiple layer loop '.construction. r f i a 11; 'lnjaloop aerial construction, the com r bination of a recessed panel member forming V I a support, a plurality of blocks mounted about 5 the peripherylo'f said'support and in the recessed portion thereof, means provided in each ofsaid blocks'for securing the Winding "of a plurality ofturns, a second block of like V. characteristics" toeach of said firstinamed i 4 b'locks positioned adjacenteac'h to'said first V named "blocks, I a continuation or said first named'winding extendingin spaced relationshipirom said first winding over each of 7 ;'said last named blocksand adaptedto form a spaced multiple layer loop, and a cover plate -mounted on'said support memloerntor V holding said blocks in fixed position with re j spect-to each other. i LAZARUS SHAPIRQ.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2492772 *May 9, 1946Dec 27, 1949Gen ElectricLoop antenna
US2531215 *Apr 4, 1946Nov 21, 1950Hazeltine Research IncPortable radio equipment
US4816838 *Apr 17, 1986Mar 28, 1989Nippondenso Co., Ltd.Portable receiving antenna system
U.S. Classification343/702, 343/869, 455/347
International ClassificationH01Q1/24
Cooperative ClassificationH01Q1/24
European ClassificationH01Q1/24