US931360A - Burglar-screen. - Google Patents

Description

H BLA. WAYLAND.

BURGLAR SGREEN. APPLIOATION FILED rmafs, 1909.

Patented Aug. 17, 1909.

I And, as the breaking of the window is 1 A wAvLANn, orcnicaeo, antes,

gj EUGENE e. 11; liiiown t'hat I, EuenNi inikf war- 1,A ;v-n,;; 1 citizen of the United States, and a "dent ofiQhicago, in the'cduntyof'Cook f Illinois, have invented certainefu l Improvements in Burglar of". which the filillowing' a speci- I en tion rel'ates toadevi'ce forpre- Iing ithe f 'theft of"jewelry," particularly lends andthedike, furs or any other disc, displayed in shop s well'known, the theft of merchandise 15 ape in"shop windows is often elfected by rea hole'fin; the show window in -'l l the goods" are displayed, sufficiently be t0.per1nit the thief to insert his handand withdraw the goods. Having secured 20, the goods, tl e thief then (attempts to escape with them, bef orehe can be apprehended,-

- ,As the 'rhore,valuable'jewels, ewelry, etc,

ga iight, robher e'spf this kind are most often [,za-ttennpted dur ng business hours,when there- ,Iare peopl e, in the store; and usually, also, f at no' great "distance away onthe street.

u i a'lly effected by throwing'a brick, stone ei'heayy' object through th'ewindow,

ia 'lging a noisecalculated to attract ntion of people' at a considerable- "ce the} of the atteii'ipted robssar' y depends on its 'beiii'gereith the "greatestpossible' despafchs eneral condit on of "unprep ai'eduess of e in the vicinity, together withjthe' en;-

a t'l is ion naturallyincident; v I ofanattciiipted' iobbery sort, n ngenabl the thief" w 'ifiake his eseapenhefore those-arolii'ldfrealize" as) "able ,toffdiiihulate" 1 Letters Patent. I 5 i Application filed ama, 1909; Seria1N0.476 ,605.

AssI'GNoR or one-HAL To JAMES s. WATSON OE OHIOAGO,' ILLINOIS.

Patented Aug; 17,1909.

tracted' position so 'as not'to obstruct the 7 window, a pawl or detent for maintaining said screen normally in raised or retracted position and means, preferably electrical jn'ieans, controlled, by the break'ng' of the window, for releasingor tripping said pawl or detent and a. weight or equivalent means "applied to said screen for quickly drawing said screen down or across 1e window i1n-' Fig. 1, on an enlarged scale. Big. 3, is an enlarged, partial plan section on the line 3'3- of Fi 2; and Fi .4 is a fra ienta detail view? showing -buffer fOI dGHHiI I the fully lowered position of the screen an for absorbing the impact and jar'due to the falling of the weight applied thereto for lowering the same.

ferring now to the drawing, A desi'gnates a show window, B the frame or casing 8-5 thereof, and C a support for goods, display racks or the like, inside of saidwindow, com- ;monly known as a bulkhead: Supported -inside-of the window A, preferably at the top-thereof, is-a screen l'wliich is adapted-to 9'0 l owered so as to entirely cover said -win ldow." baidscre'en l'is preferably made of- K voven wire the meshes of which are too "si'i'rall to permit a hand to be inserted theretln 'ol-i gh', and saidwvire being ofsuch chara'ctert-hat it cannot be readily cut:to form: tnroi'yening through the same, through which hand may be inserted. in practice I pre- -er'-;.touse "wire screen having a very fine l "*'-ines'h so that: it will be practically inip'ossible' to insert any instrument through said fscre'en from the-outside or to withdraw any object through said screen. 'In the prefer- 1ahle construction shown, the screen 1 is 'Qadaptedto be wound upon a roller 2, rot-a- 10a lnediately said pawl or de nt is tripped. 65

sectional elevation thereof, on the line 2-2 of 75 a weight 3 which is sufficiently heavy to v which are engaged drawsaid screen rapidly down over the window when said screen is free to respond thereto. .t weight for this purpose which will present a very neat and att'active appearance may be formed by means of a brass tube secured to the lower edge of said screen the interior of which is filled with lead or the like. The weight I; will vary in size, de-

pending upon conditions. a desirable weight t'or general purposes being about 150 pounds. if desired. a spring may be applied to the roller 2 adapted to rotate the same in a direction to wind the screen 1 upon the same, after the manner of the usual llartshorn roller. .\ly invention. however. cotttemplates equally the use ot any other desirable or approved means tending to rotate the same in a direction to wind said roller 2 up. or such means may be entirely dispensed with. If used, however. the force exerted by said means tending to rotate said roller must be weak enough so as not to interfere with the designed rapid movement of the screen 1 under the inlluence ol the weight 3.

To prevent the tree edge of the screen i from being pushed inwardly when in lowcred position. said screen is held by suitable guides. which also operate to guide the saute while being raised and lowered. As shown. said guides consist of upright rods 4 secured adjacent to the sides of the window casing. by rings secured to the lower corners of the screen 1. The screen 1 is adapted to be secured in lt )\\'(l'((l position to prevent the same from being raised by means oi suitable spring catches constructed and arrangt-d to automatically engage the weight 3 or other part of said screen when fully lowered. sist of springs ti secured adjacent to the lower ends of the guide rods 4 which, normally. are downwardly and outwardly inclined away from said guide rods and are provided with shoulders T at the lower ends which extend substantially at right angles to said guide rods. the relation be ng such that. as the weight 3 descends past said catches the rings 5 on said weights will op erate to depress said spring catches to permit said rings to pass the same. said catches springing out so as to bring the shoulders 'i' thereon in engagement with the upper sides of said rings as soon as said rings pass said catches. To permit the designed operation of said catches. suitable recesses will preferably be formed in the guide rods 4- adapted to receive said catches when depressed.

To provide for preventing a thief from withdrawing his hand or arm from beneath the screen. in case he should succeed in inset-ting same. teeth 8 may be secured to the weight 3 which project below the same. To prevent said teeth from causing serious injury. they will preierably be made of such length that they will project only a short .\s shown. said catches eondistance below the wei ht 3 and the ends thereof will he curvet inwardly. As a further safeguard against injury, stops are preferably provided for arresting the downward movement of the weight, 3 at a short distance above the lower side of the window casing. say aninch 0' an inch and a half. in the preferable construction shown, said stops consist of hufi'ers ti. preferably rubber. or the like. of proper thickness to form the desired stops and which will also operate to relieve and absorb the shock and jar due to the impact of the weight- 3 when it strikes said butters.

The screen 1 is adapted to be maintained normally in raised or retracted position in the following manner :-Projecting laterally from one end of the roller 2 is a pin 10 which is adapted to be. engaged by a catch 11 formed at the end of an arm 12 pivoted to a suitable lug or bracket on the window casing. The arm 12 is adapted to be moved pivotally to bring the catch 11 thereon into position to engage the pin 10 by means of an electromagnet 13 mounted on the window casing ad acent to said arm 12, the armature 14 of said magnet being secured to said arm 1;. When the magnet 13 is de'nergiz'ed, the arm 1:! is adapted to be moved pivotally to release the pin 10 from the catch 11 by a spring 15 applied thereto.

The coils of the magnet 13 are in circuit with a suitable electrical generator. indicated at it. said electrical circuit comprising strips or bands 17 of tinfoil or other conductor of electricity cemented or otherwise secured to the surface of the window A. preferably closely adjacent to the edges thereof and extending continuously around the two lateral sides and the bottom thereof. To provide for electrically connecting the strips or bands 17- ot' tinfoil. metal contacts 18, preferably at small platinum wire. are inserted beneat; said strips or bands'of foil. at opposite sides of a break therein, said-contacts 18 bein connected to difi'erent sectionsltl and 20 0 the electrical circuit connecting the magnet 1: and the generator 16.

In shattering a \vindow'with a brick, stone or other heavy ob'ect, cracks are formed therein extending rom the hole formed by said brick or stone to the edges of the glass. Such cracks in the lass will operate to break the continuity o the stri or band 17 of tin foil or the like, and wi I thus break the electrical circuit controlling the magnet; 13 which will thereupon be deinergized, releasin the arm 12 from the influence of said magne' and permitting the same to swing outwardly under the influence of the spring 1.) to release the pin 10. thereby permitting the screen i to be drawn down'by the weight 2, applied thereto.

any modifications and variations of the tum-hanical and electrical means einploycd v mechanics and e for controlling the operation of the screen 1 will readily su therefore, desire specific means shown,

Many variationsj'mthe form and construction of the screen 'will likewise readily.

suggest themselves and I do not therefore desire to. limit myself to the flexible screen shown and in the broader claims following, I have used the term shield to designate broadly any form of screen, gate, plate, or the like, whether flexible or. otherwise to designate this member. 15'

1. In a device of the type described, the combination with a window, of a shield mounted inside. of said window constructed and r t b awno e t sai w dqm a Y wei'ght oi the likeapplied ,to said shield adapted-for drawing said shield over said window,;.means for securing saidshield in retracted position and means rendered-operative by the breaking of the window for releasing said shield, substantially as described. 2. Ina deviceof the type described, the

' combination .with a window, of a. shield mounted; inside of said window constructed and arranged to be drawn-over, said window, a weightor the like applied to said shield adapted for drawing sald shield over said window, guides for said shield adapted for preventingthe same from being ppshed inwar'dly, means-for securing said shield in re.- tracted position and means rendered operative by the breakingrof the window for releasing said shield, substantially as described.

3. In a device of the typedescribed, the combination with a window, of a shield mounted inside of said window constructed and arranged to, be drawn over said a weight or the. like applied to adapted for drawing said shield over said window, electrically controlled securingsaid shield in retracted positionand window,

means rendered operative by .the breaking, I of the windowffor releasing said; shield,

substantially as described.

4.,In a device of the type. described, the a combination with a window, of av shield mounted inside of said window constructed and arranged to be drawn over saidwindow,

a weight or the like applied to said shield adapted for-drawing said shield over said window, a detent for securing said shield in an electromagnetapplied gest themselvesto skilled" ectricians, and I do .not," to limit myself to thesaid shield.

means forelectricity applied directly so as to be breakable therewith, whereby breaking-said window across. said conductor so applied thereto will operate to break the circuit of the magnet and deenergize the same, substantially as described.

In a" device of the type described, 'the combination with a window, of a shield mounted inside ofsaid window constructed and arranged to be drawn over said window,

a weight or the like applied :to said shield adapted for drawing said window, a detent for securing said shield in retracted position, an electromagnet applied shield over said to said detent adapted for maintaining said detent in engaging position and means applied to said detent. for tripping thesame when said magnet is deenergized, an electric circuit connecting the coils of said electromagnet an electricgenerator, said circuit 'comprlsing a conductor of easily frangi ble material applied directly tothe window adjacentto the edges thereof in such manner as to. be breakable therewith, whereby a crack in said window extending from the inside of said frangible conductor to the edge of the glass will break said conductor, thus breaking the circuit ofthe electromagnet and deenergizing said magnet, substantially as described.

6. In a device of the'type described, the combination with a window, of a shield mounted inside of said window constructed and arranged to be drawn over said window, a weight or the like applied to said shield adapted for drawing said shield over said window, a detent for securing said shield in retracted position, an electromagnet applied to said detent adapted formaintainingsaid detent in engaging position, and means applied to said detent for tripping the same when said magnet is deenergized, and an electric circuit connecting the coils of-said electromagnet with an electrical generator,

said circuit comprising a strip or' band of metallic foil, the same being a conductor of sl ibstantially as described. v p v I In a device of'the type described, the

combination with 'a window, of a flexible screen, a rotatable roller to which said screen 18 attached so as to be rolled thereupon and unrolled therefrom, a weight or the like applied to said screen adapted for unrolling said screen from said roller, a lug or jection' on said roller, a detent constructed and arranged for engaging said lug o'r projection to secure said roller against rotation,

an electromagnet applied to said-detent adapted tomaintain said detent in position to engage said lug or projection and means applied to said detent for tripping the same whe aid magnet is deenergized, an electric c 'gcuit connecting the coils of said electromagnet with "an electrical generator, said circuitcomprising a strip or band ofinetalpro- 110 to saidwlndow,

EEQT AVAILABLE COPY lie foil the same being a conductor of electricity applied directly to said window, substantially as deecribed.

8. In a device of the type described, the conibii'mtion with a window, of a shield mounted inside of said window constructed and arranged to be drawn downwardly over Sfi'mii window, a weight applied to the lower edge of said shield and teeth secured to said weight which project downwardly below the same, means for securing said shield in retracted position and means rendered operof the windowfor ative by the breaking relensing said screen. Substantially as scribed.

In testimony, as my inventioin I afiix my presence of two subscribing witnesses,

I :th day of February, 1909.

EYGENE A. \VAYLAND.

that I claiin' the foregoing signature in this 'itnesses K. A. Cns'rELLo, G. M. ELLINGEN.

Images