US3068810A - Escape preventing device - Google Patents

Description

Dec. 18, 1962 D. A. KALosHlN ESCAPE PREVENTING DEVICE 4 Sheets-Sheet 1 Filed May 2, 1960 i l r Dec. 18, 1962 D. A. KALosl-HN 3,068,810

ESCAPE PREVENTING DEVICE Filed May 2, 1960 4 sham-sheet 2 1NVENToRfJ4 DIM/TRI A. KALOsH//v BY al ATTORNEY Dec. 18, 1962 D. A. KALOSHIN ESCAPE PREVENTING DEVICE 4 Sheets-Sheet 5 Filed May 2. 1960 INVENTOR. DIM/TRI A. KLOSH/N BY @www W ATTORNEY Dec. 1s, 1962 D. A. KALOSHIN 3,068,810

ESCAPE PREVENTING DEVICE Filed May 2, 1960 4 Sheets-Sheet 4 'QJB- a8 @.9 /l7 7a ma@ N 73 y sa INVENTOR. DIM/TRI A. KLOSH/N BY @www ATTORNEY United States Pate t Orifice bi@ Patented Dec. 18, 1952 3,965,810 t ESCAi'iiF'J PREVENTNG DEVICE Dimitri A. Ealoshin, 934 Page St., San Francisco, Calif. Filed May 2, i969, Ser. No. 25,082 6 Claims. (Cl. 109--6) wound. The drum 11 is of sufficient width to accommodate said door and carries on its ends pulleys 12 for windrThe primary object of this invention is to provide an escape preventing device which prevents a robber to escape from a bank, or other building, after he has coinrnitted a robbery.

Another object of this invention is to provide a device of the type described which includes a door which closes the entrance into a bank, or a building, when a microswitch is secretly operated by a bank employee.

Another object of this invention is to provide a device of the type described in which the escape barring door may be opened only from the outside of the bank, or the building, by a switch operable by a special key.

Another object of this invention is to provide a device of the type described which includes a second escape barring door which automatically closes the entrance of a bank, or a building, in case the lirst door for any causes fails to close completely said entrance.

Another object of this invention is to provide a device ofthe type described including a special secret microswitch operable by a teller of the bank, which switch and its operation is undetectable by an outsider.

Qther objects and advantages will appear as the specification proceeds and the novel features of the device will be particularly pointed out in the claims hereto annexed.

In this speciiication and the annexed drawing, the invention is illustrated in the form considered to be the best but it is understood, that the invention is not limited to such form; and it is also to be understood that in and by the claims following the description, it is desired to cover the inventionin whatsoever form it may be ernbodied.

This invention is illustrated in the drawings forming a part of the specification in which:

FIG. l is a vertical longitudinal cross-section of an' entrance to a bank, or other building showing my device in operation with one door in closed position and the other door in open position.

FIG. 2 is a cross-section along the line 2 2 of FIG. 1.

FIG. 3 is a vertical transverse cross-section of said entrance, showing one door in closed position.

FIG. 4 is a plan view of a currency container.

FIG. 5 is a vertical cross-section along the line 5-5 of FIG. 4 of the currency container.

FIG. 6 is an electric wiring diagram of the device.

ing cables 14. The latter extend from said pulleys, over small guide pulleys 1S down and around four pulleys 16 and up and are connected to the ends of the chains 3.

Normally the ilexible door 1 is wound around the drum l1. When the latter is rotated in counter-clockwise direction viewing FIG. l, it winds the cables 14 about the pulleys 12 and at the same time unwinds the door l, thus moving the door downwardly. To return the door 1 to its initial position, the drum l1 is rotated in the opposite direction. lt requires one turn of the drum to unwind a suticient length of the chains 3 for the rubber apron 9 to reach the floor.

The drum i1 rotates on stub-shafts 2t) which are supported by a pair of supports 2l. An electric motor 22 through a trainof reduction gears 23, 24, 25 and 26 operates said drum, the latter gear being on the stub-shaft 20 near one of the supports 2i. A clutch 27 is provided between said gear 26 and the drum 1i, and is so arranged that when the door l is stopped on its downward movement, said clutch becomes disengaged by pushing said gear away from the drum against the pressure of spring 23 arranged inside said drum on the stub-shaft 20 for pulling the gear toward said drum, as shown in FIG. 3.

' When the gear 2d is pushed away, it presses upon and ac- HG. 7 is a fragmentary plan view of the drums showguides 5 secured to the side walls 6 of said hallopposite l each other.

The chains 3 are connected by a plurality of heavy metal bars 7 of such size and arranged so closeto each other, that a man cannot squeeze himself between the same. 'fhe lowermost bar '7 carries extending downwardly therefrom to the iloor 8 a heavy rubber apron 9.

The door 'r extends upwardly through a ceiling 10 and the upper end thereof is secured to a hexagonal drum 11 of considerable size up which said door is normally tuates a trouble switch 29 for the purpose as shall be hereinafter stated.

A second fiexible door 3ft is arranged in said entrance hall 2 between the door 1 and the usual entrance door 3i.. The door 30 is of exactly the same structure as the' door l including a drum 3l, a motor 32, a reduction gear train 33 and pulleys 34 and operating the same way. It is provided as a safeguard, so that in case the door 1 is jammed, or stopped by some means before it reaches the iloor, the second door 30 will automatically close the entrance hall 2, as shall be hereinafter stated in detail.

The door v1 is operate by a secret micro-switch which is so arranged and concealed that its operation may not be detected or understood by a robber, and does not create any suspicion, or alarm in him when the teller operates the same during a hold-up.

Many possible places and types of such switches may be employed for that purpose. ABut after a thorough investigation, I propose that a micro-switch 4i? for operating said door 1 be placed in currency drawers 41 of each teller. The drawer usually contains a bill tray 42 divided into a plurality of compartments 43, 44, 45, 46 and 47 for bills of diierent denominations, such as one dollar, tive dollar, ten dollar, twenty dollar and one hundred dollar bills. respectively. Bills in said compartments are held down by spring pressed wire iingers 5t) swingable about a transverse shaft S1 extending the width of said tray 42. All fingers Si? are of the same size and coniguration. However, the viinger 50 in the compartment 47 serves to operate the micro-switch 4i) which in turn sets the device in action. Said finger 50 is formed with a hook 52 extending on the other side of said shaft 5l backwardly and downwardly. A spring 53 one end of which is secured to said nger and the other anchored to the floor of said tray, as shown at 54, normally presses said linger downwardly, as shown in FG. 5. When the nger Si? is down a well concealed small electric light 55 is on, which light'is visible only to the teller and not to any outsider. The light indicates that the micro-switch 4d is connected with the source of current. The teller may raise said finger to an angle of about 45 degrees without going over the dead center. He may raise said finger .over the angle of 45 degrees,but he will feel that the spring 53 now pulls said tinger upwardly. The teller can keep the finger Sii in the latter positionwithout operating the door 1. But when a holdup man demands -to give him all the currency, the teller complies with the request. He lets the linger to rise to the position of 90 degrees, as shown at Sit-A, and the hook 52 contacts and operates the micro-switch 40 which is located under said shaft 51.V

The latter micro-switch turns they light 55 otf and actuates the electric motor 22 of the door 1. The motor 22 immediately forces the door 1 downwardly to close the y entrance.

The pulley 34 of the second door 30 carries a pin 70 on its outer surface near the periphery thereof which operates a spring lever 71 consisting of two prongs 72 and 73. The lever 71 rocks a shaft 75 to which the same is V32 for raising the second door 30. Y

The pin 70 also operates'a third switch 88 by a leaf spring 89 extending over said'switch and in the path of said pin. The pin 70 normally presses the spring 89 Adownwardly -to close the switch 88, butwhen the drum 31 rotates in the clock-wise direction looking at FIG. 8 to close said door, the pin'70 moves upwardly and releases said spring `89, thus opening the switch 88. The latter remains open until the dooris lifted and .the pin 70 .again vcloses said switch by said spring 89.

The first door 1 has the Ysame arrangement of a pin 95 on the drum 11 which operates a spring lever 96 having two prongsl 97 and 98, said'lever being secured 'to -a shaft 100.. 1 The latter shaft is adapted to operate simultaneously two switches 105j=and 106, the lirst of which reverses the motor and the other cuts o the ow of current to the same, 4andgin .additionthereto turns on alarm @signals 7s and 79. A third swith 11o is nso provide-d in connection with said door 1 which is normally kept i Yclosed by a leaf spring 111 operable by said pin 95.

WhenV the door starts to rotate and the pin releases the leaf spring 111, 'the switch 110 opens.

The'spring lever 96 is provided with an extension 115 to which is fulcrumed a secondary lever 116 with freedom When the door. 1 is going down, the spring lever 96 remains in its downward position, as shownin FIG.; 8, until itis lifted by Ythe same pin on its upward swing when the'door 1 reaches the door, vthus' resetting the switch 105 for reversing the rotation of the motor 22.

If the Vdoor v1 should Ystop for some Vreason on its-way "down, the second door immediately starts to go down. YThe pin 70 on its downward motion meetsthe, linger 1,17

and the secondary lever 116 and swings the same downfY y of swinging upwardly only.; The secondary lever carries Y Y a linger 117 fulcrumedtothe end thereof. The finger 117 wardly, thus rocking the Vshaft and swinging `the springY I lever 96 upwardly. VThe shaft 100 Yoperates the switches i Y and i106 the first of which reverses thernotor, thus lifted when the current is Y Y as Yhereinbeforei has been described, operates theY switch ,permittingY the door/gto be delivered tofsaid motor.

Electric WiringV Diagr'zk Y Y 'I'he electric diagram shown in FIG. Y6,inclurdes a wire connecting a source of electric current with wires 127 and 128 leading to reverse switches 105 and 75',

v 4 Y ated by the spring levers 96 and 71, as heretofore has been explained in detail. Y Y

A Wire 126 connects said-source of electric current with the contact point 130 of the-trouble switch 29. VNormally the latter contact point is connected with the contact point 131, which in turn is connected by a wire 132 with la contact point 133 of the switch 110. The latter point is connected with -a point 135, when the pressure of the leaf spring keeps fthe switch close-d. If said pressure is released, the point 133 becomes connected with =a point 136. From Y the Vpoint 135 current flows 4th-rough a wire V13.7 to -a point motor 22 turns the drum 11; The pin 95 carried by said `drum rises and releases the pressure of the spring 111 from the Athird switch 110.V Thereupon the .point'130 is placed in communication with the vpoint 136 which is connected by a wire with the cut-olf switch 106, which is closed. The latter'switchis connected by la wire `14,6 Y to the wire 143 and, hence, tothe motor 22. Therefore,

the micro-switch 105 need not be held in operative position more than a very short `time needed to give the motor 22 av good start. Then the third switch 110 sends the Y current through the above described circuit.

When the door 1 reaches the floor, .the pin 95, 'after having made `an almost Vcomplete circle, pushes the lower prong 98 of the spring lever 96 upwardly 'and rocks the shaft 100. The latter 'actuates lthe reverse switch .105'

setting the same for the reverse rotation of the motor and the stop switch 106 cuts off 'the' dow of currenttherc through.V` VThe downward movement of the 1 stops and the latter remains in such position until a general release switch is operated. i Atrthe ysame 'timefthe' stop switch 106 turns on current to .the wire 151, .con-

nected to the timing device 81 and the signal devices 78 Y and 79.Y The wire 152 completes lthis circuit by connect# Y ing the latter device to the wire 128.

The switch 150 is loperated by a special key which is inf; possession of :one of the employees of the bank. But said switch is located preferably in the hall 2 near the entrance door thereof and out ofthe reach of any person locked in the bank by `the door 1 or 30; When the-alarm signals are sounded and -thezpolice have arrived, then the key is- Y given to a policeman-on the outside through said door 1 017130. The policeman turns the key `and therebyopenates p the general release Iswitch 150.V The latter Y'has -a pluralityV Y j of contact points for various purposes which shallrbe gradually described hereinafter.

The wire 145 is connectedV byrwire 155 to ia contact point 156 of the switch 150. VWhen the latter switch is A, 'Y operated theV point 156 is brought inrcommunicationwith f a' point 157 which isconnected togtherwire 143V leading to said reversible switch 105.Y The motor raises the doorl 1 up. .The pin 95 Itravels inwacounter-cl-ockwise directionV and presses the upper prongv 97 downwardly, Y pushing the spring lever 96 downwardly,l Yand therebyYY1 operating the switches 76, 77 and 88 to resetthe sameV Y, for the initial Vposition hereinbefore described. :ij If for somereason the door 1 stops before' reaching the;

oor,rthe1gear;26, being pushed away bythe clutch 27,

29 to place ,the contact pointj130in communication with the point 160 connected by a wire 161 with Ya point Y162 inY Y said general release switch 150'whichLpoint isnormally in communication with a point 163 in ythe Vsame switch. Y'

The latter point is connected by a wire 165 .to a point 166 of the switch 88 of 'the second motor 32. VThe latter with the point 167 which is connected by a wire 168 to the cut-off switch 77. The latter completes 'the circuit through to a wire 170 and iie reversible switch 76. The motor 32 closes the second door 30. When `the door 38 reaches the floor, the pin 70, through the spring lever 71, operates the switches 76 and 77, reversing the switch 76, cutting the motor off and turning on `the alarm devices 78 -and 79. A wire 17S connects said switch 77 with the wire 151 for the purpose of operating said devices.

The second door 38 is also raised by the operation of the general release switch 150. When the pressure of the spring 89 on the switch 88 is released, the point 167 of said switch becomes connected with `a point 178. When `the general release switch 150 is operated, the following circuit is established: from wire 126 by wire 179 to the point 178, point 167, wire 168, a wire 180 to points 181 and 182 in said general release switch, which become closed, by a wire 183 lto ,the wire 178 `and the motor 32, thus raising the door 30.

At the same time the first door 1, which is partially closed, is raised in the following manner: current runs from the wire 26 `to the point 138, point i60, a wire 185 to points 186 and 187 of the general release switch; line 188 to the line 143 and `the motor 22, thus raising the door 1.

I claim:

1. An escape preventing device for a building, having an entrance hall with a floor, comprising a first door normally located above said hall, means for lowering said door to said door to close an area in said building, means for raising said door, a second door arranged in spaced relation to the first door above said hall, means for lowering and raising the second door, means associated with the first door for actuating the last mentioned means to lower the second door when the first door fails to reach said floor, means located within said area for actuating the means for lowering the first door, and means outside of said area lfor actuating the means for raising said doors.

2. An escape preventing device for a building, having an entrance hall with a floor, comprising a first door and a second door normally located above said hall, each door having an electric motor for lowering said doors to said oor to close an area in said building and for raising said doors above said hall, a switch located inside of said area for actuating the motor of the first door to lower the latter to the licor, means associated with the motors for actuating the second motor for lowering the second door only if the first door fails to reach the floor, and means outside said area for actuating said motors for raising said doors.

3. An escape preventing device for a building, having an entrance hall with a oor, comprising a first door 1ocated above said hall, an electric motor for lowering s aid door to the oor of said hall to close an area in said building, and for raising said rst door; a second door arranged above said hall in close vicinity of the first door, a second electric motor for lowering said second door to said oor and for raising the same; means for reversing the direction of rotation of the first motor and means for stopping the same; a first lever associated with the first door for actuating the last two mentioned means when the rst door reaches the door; means for reversing the direction of rotation of the second motor land means for stopping the same; a second lever associated with the second door for actuating the last two mentioned means when second door reaches the oor; means associated with the rst door for actuating the second motor when the first door on its downward motion fails to reach the oor, said first lever having an extension for operating said first lever by the movement of the second door; a secret switch within said building for actuating the rst motor for closing the first door; and a general release switch for raising the first and the second doors.

4. In an escape preventing device of the class described, a combination of two flexible doors arranged -above an entrance into a building, comprising a first door, a irst drum upon which said rst door is normally wound, a rst electric motor for unwinding the drum and lowering said first door to the cor of said entrance and for winding said first drum and raising the first door; a switch for reversing the rotation of said first motor and a switch for cutting the motor 0E, means operable by said drum for simultaneously operating said two switches when the first door reaches the -iioor of an entrance; a second door, a second drum upon which the latter door is wound, a second electric motor for lowering and raising said second door, a switch for reversing the rotation of said second motor, a switch for cutting the last mentioned motor ofi, means operable by said second drum for simultaneously operating said last mentioned two switches when the second door reaches the fioor of the entrance; means operable by the second drum and associated with the means operable by the rst drum for simultaneously operating said first mentioned switches for reversing the rotation of the first motor and for cutting the same eti if the first door fails to reach said floor, and means for actuating said second motor for lowering the second door when the first door fails to reach said floor.

5. In an escape preventing device of the class described, a combination of two doors arranged above an entrance into a building in spaced relation to each other, an electric motor for raising and lowering each door for closing an area in said building to lprevent egress therefrom; means associated with each motor for stopping the same when the respective door reaches the floor; a switch inside of said area for actuating the motor of one door to lower the same to the door; means associated with the motor of the last mentioned door for actuating the motor of the second door for lowering the same to the floor, whenever the first door fails to reach the floor; means for reversing the rotation of said motors; and a means for actuating said motors for raising said doors.

6. In an escape preventing device of the class described, a combination of two flexible doors arranged above an entrance into a building in spaced relation to each other comprising a first exible door, va first `drum for winding said first door, a first electric motor for lowering said first door to the floor `of said entrance for barring the exit from an area in said building; means associated with the first mentioned drum for stopping said rst motor and for reversing its rotation when the first door reaches the oor; a second flexible door, a second drum for winding said second door, a second electric motor for lowering said second door and for raising the same, means for stopping said motor and for reversing its rotation when the second door reaches the floor; means for stopping the first motor and means for actuating the second motor for lowering the second door when the first door -fails to reach said floor.

References Cited in the file of this patent UNITED STATES PATENTS 449,203 Canda Mar. 31, 1891 1,181,307 Hankulich May 2, 1916 1,557,691 Hill Oct. 20, 1925 1,666,605 McLellan Apr. 17, 1928 1,775,697 Ruschmeyer Sept. 16, 1930 1,972,695 Stande Sept. 4, 1934 2,359,254 Silver Sept. 26, 1944 2,416,963 Stelter Mar. 4, 1947 2,612,232 Morrison Sept. 30, 1952 2,629,863 'Stern et al. Feb. 24, 1953 2,850,088 Purdy Sept. l2, 1958

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