US1706835A - Grille - Google Patents

Description

March 26, 1929 e. w. ACKE-ZRMAN GRILLE Filed July 30, 1926 INVENTOR 620g: [Avian/lam ATTORNEYS IIIl /IIIIII/ Patented Mar. 26, 1929. i Ulallfi s'rnrssrarnur orrice.

GEGRGE W. AGKERMAN, OF NEW YORK, N. Y., ASSIGNDR TO ACE, .MAN 330013. I1TITEll't VIEWER CQRR, OF YORK, N. '55., A CQRPOHATIQN OF NEW cerium.

Application filed July 3D, 1926. Serial No. 1538,0535.

An obiect Oil: the present invention is to I haveuscd the reference numeral 10 to provide a. grille capable of {INV'IClO r: ige oi" designate an. apartment door, the inside oi utility, but which finds its preferred em- 'which is shown in Fig. 1. The grille is bodinient 111 a device for use on ZtPttiblBQ-lll} mounted at any desiredheight in the door, fl r preferably in apiiroxinzately the loi'atiim 'ilso An obiect of the invention is'to provide his ted. It includes a pair of inner. and a device of this character which will permit out-er i rame members 11 and 1.2 respectively the occupant of an apartment to observe apwhich register with each other and which plicants for entrance without oponmg the are secured together in any suitable mandoor, to pay bills, or carry on conversation ner. i r

through the grille without any danger olfan While 1. have shown annular frame memintruder gaining entrance or insertinghis here, it is to he understood that the frame hand through the grille to open the door members might be rectangular, diamond from the inside. shape, or oi any other COIll OXfIlHLilOII de- 15 In its preferred embodiment the grille insired without departing from the invention. cludes a pair oi": frame members of similar Preferably an opening, is cut in the door in size and shape, the outer 'l'ranie n'ieinber caraccordance with the shape of the frame rying a grating or a plurality of bars for members, and outwardly presented flanges restricting the size of-the opening, and the 13, i l on the frame members overlie the 20 inner frame member carrying aclosure for edge of the opening. Screws 15 pass closing the opening. through the flange 13 of the member 11, Prcierablv the two frame members, one and entering threaded pockets 16 in. the at the outside and one at the inside of the flange 14: oil the member 12 allord one condoor are held together by securing devices venient type of securing device. It to be 25 which are imiccessible from the outside oi the noted that the outer ends of these screws (1001,80 that there is no d anger of an intruder are concealed, so that an intruder cannot deprying oil, or forcibly (llSlOt aging the grille tach the outer frame member by loosening from its position in the door. the screw.

Other objects of the invention are to pro- Frame member 12 is preferably barred. as so vide a grille of simple, practical. coiritruo iniflicated at 17, the bars or grating being, tion which will be neat and attractive in apif desired, integrally cast with the member pearance, rugged, durable and elliciont in 12. These bars e'l'lcctively prevent an inuse, and well suited to the requirements ol': trader from inserting his hand through the 00011011110211ll'lttnlliltlcbllle. grille opening to open the door from the With the above noted and other objects in inside. 7 view, the invention confsts in. certain novel 'l hegrille is norn'ially closed by a swingieatures o'lf construct-ion and combinations inp; closure member 18 oi the same so ape as and arrangements of parts, as will be more the frame mcn'ibeis 11, 12. Ears 19 integral lully hereinafter set forth and pointed out with the closure member receives a slidin the claim. The invention may be more ingbolt 23 nm'inally urged outwardly by a fully understood from the following; despring 24: pocketed in the inner end of the scription in coniiection with the accompanysleeve. lllovenient of the bolt is eliminated inn drawings, wherein by the travel oi the shank 25 of a handle 26 1 is a view in inside elevation of an a slot 27 in the sleeve. A keeper 28 rigid apartment door showing; my improved grille with the frame member ll coacts with the in applied position. end oil the bolt 23. This bolt end is pretll ig. 2 is an ei'ilarged elovational view of erably provided with a caminingr face 29, the inside of the grille showing the closure so that the bolt latches automatically as the plate closed and latched. closure is swung to. o Fig.5. 3 is a similar view looking at the out- The central portion oil the closure plate 5 side (it the grille, ltlis offset to lit within the ring 13, and the Fig. l is a transverse sectional view on the edges of the plate lie snugly and flatly line 4- l of Fig. 2. against the inner face of this ring, whereby Fig. 5 is a sectional detail on the line 5--5 a substantially draft-proof and jimmy- 55 of Fig. 2. proof closure is provided without the necessity'of expensive grooving operations on the door tself.

Various changes and alterations might be made in the general form and arrangement iof parts described WltllOllt: departing from theinvention. Hence I do'not Wish to limit myself'to the details set forth, but shall'consider myself atliberty to makesuch changes and alterations as" fairly fall within the spiritand scope of the appended claim.

Iclaim e v A. door grillefor, fireproof doors, the

' grille being of the character which provides a speaking opening and a sight opening, but

which prevents the insertion of a hand from the outs de of the door, said grille including 1 an outercross-barred frame .member and an inner closure. carrying frame member, said edge to the inner face of the inner frame .tion of a jimm ing tool under frame members each including portions to be received 111 a prepared opening in the door and portions to overlie the inner and outerfaces of the door, securing devices connecting said frame members together and to the door, the closure comprising a substantially solid metal plate hinged at one inner frame member, coacting latching means carried by the free edge of the closure plate and the inner frame member respectively, the closure plate including an offset center portion entering the inner frame member when the closure is shut, the closure radially beyond said ofiset portion providing a flange lying snugly against the member to provide a substantially draftproof construction and the offset center portion serving as a guard means to prevent the inscrsaid flange from the outsi e of the door.

GEORGE WV. ACKERMAN.

CERTIFICATE OF CORRECTION.

Patent No. 1,706,835. Granted March 26, 1929, to

GEORGE W. AGKERMAN.

It is hereby certified that error appears in the printed specification of the above nnmbered patent requiring correction as follows: Page 1, line 94, after the word "member" insert:

"18 are spaced apart and extend laterally beyond said member, being snugly received between spaced parallel cars 20 integral with the ring 13, A hinge pin 21 is passed through the tour alined ears, thereby hingedly connecting the closure plate to the inner ring 13. The reiatively wide flat hear ing surfaces defined by the spaced pairs of interfitting ears 19, 20 obviate any danger of the closure plate sagging on its hinges and not swinging true to snugly closed position. The exposed and readily accessible portion of the hinge pin 21 between the ears 19 offers a convenient place of attachment for a. coiled tensional spring (not shown) if automatic closing is desired";

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Offiee.

Signed and sealed this 23rd day of April, A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.

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