US1951905A

US1951905A - Door operating device

Info

Publication number: US1951905A
Application number: US416794A
Authority: US
Inventors: Ernest A Hansen
Original assignee: CONTROLADOR CORP Ltd
Current assignee: CONTROLADOR Corp Ltd
Priority date: 1929-12-27
Filing date: 1929-12-27
Publication date: 1934-03-20
Anticipated expiration: 1951-03-20

Description

March 20, 1934. i A HANSEN 1,951,905

noon OPERATING "DEVICE 7 Filed Dec. 27, 1929 3 Sheets' Sheet 1 .50 5/ 7 INVENTOR, zyw/zm i w ATTORNEY March 29, 1934 HANSEN 1,951,905

DOOR OPERATING DEVICE Filed Dec. 27. 1929 3 Sheets- Sheet 2 IN! "EN TOR.

ATTORNEY March 20, 1934. E HANSEN 1,951,905

DOOR OPERATING DEVICE Filed Dec. 27, 1929 3 Sheets- Sheet 3 W a GAIN VEN TOR.

ATTORNEY Patented Mar. 20, 1934 UNITED STATES DOOR OPERATING DEVICE- Ernest A. Hansen, Oakland, Calif., assignor to Controlador Corporation, Ltd., Oakland, Calif., acorporation of California Application December 27, 1929, Serial No. 416,794

4 Claims. (01. 26863) The invention is for a door operating device. The objects of the invention are: First to provide a device for mechanically opening and closing doors, and utilizing'electric power for operating said mechanism.

Second: To provide a device of the class described, whereby opposing doors will be opened and closed coincidently, and whereby any obstruction to. opening or closing will cause said electric circuit to be broken, this stopping the operation of the device.

1 Third: To provide a device as described with resilient arms or connecting rods to said doors toprevent damage due to improper adjustment 5 or obstructions.

'Fourth: To provide a deviceas described which may be controlled from different locations, and which may, in case of power failure or other trouble, be readily disengaged from' the driving means so as to permit manual operation of the doors. i

Fifth: To provide a device which, by manipulation of a switch, will cause said device to open the doors and automatically'stop the mechanism, and switch on an electric light as soon as the doors are fully'opened, retaining the doors fully open and the light on until aswitch isagain manipulated for closingthe doors, the light being turned off automatically when thedoorsare fullyclosed. f v 'a Other-objects of the invention will be apparent as the description is set forth and: from the appended claims.

In the accompanying drawings; Figure 1 illustrates the invention in mounted position as showing the doors closed.

Figure 2 is similar to .Figure 1,' but indicating the doors in open position. V

Figure 3 is a fragmentary elevation of the de- 1 vice in mounted position and with the doors closed.

Figure 4 is a fragmentary elevation indicating the circuit and reversing switch control levers.

Figure 5 is a planview of the .invention. Figure 6. is a sectional longitudinal elevation taken through the center 'of the device.

Figure '7 is a sectional transverse elevation the The connecting rods 5 and. 6 are provided at their opposite ends with adjustable members '7, pivotally related to shoes 1 and 2 and

arms

8 and 9. The connecting

rods

5 and 6 being threaded at their opposite ends to receive the axially threaded apertures in'members '7.

Operating arms 8-and 9 are oppositely disposed relative to each other and are provided with the forked ends 10 to pivotally receive the eye members '7. Said

arms

8 and 9 beingpreferably made of spring steel and attached at their opposite ends to levers 11 and 12 by bolting, riveting or similar means.

Levers

11 and 12 are disposed one abovethe other and'turn on the same center, lever 12 being fixedly attached to vertical shaft 13 and lever 11 being fixedly attached to hub 14 on bevel gear 15, shaft 13 being free to revolve and centrally. disposed in gear 15 and hub 14, said hub 14 being free to revolve in the cooperatingbase or bearing 16 in housing 17.

. Opposed bevel gear 18 is fixedly attached to shaft13, the cover .19 providing a bearing 20 for the end of shaft 13 above gear 18. A bevel pinion 21 cooperates and is at all times in mesh with

bevel gears

15 and 18, revolving

gears

15 and 18 in opposite directions, lever 9 moving in a clockwise direction and lever 8 moving counter clockwise for opening the doors, as viewed from above and illustrated in Figure 5.

Cover 19 is fixedly retained in alignment by means of dowels 22 and bolts or screws 23. Bevel pinion 21 is fixedly attached to shaft 24, said shaft 24 being free to revolve in

bearings

25 and 26, said shaft 24 having fixedly attached thereto, a worm gear 2'7. I

A pocket 28 is formed in housing 1'7 to contain a lubricant for said worm gear 27 and shaft 24.

A cradle 29 pivotally mounted adjacent one end,

with worm gear 27, thus releasing the drive and providing for manual operation of the doors.

Suitable connections are provided as indicated at 36, and shown as operated by a knob 37 outside the doors, the knob being of a type which can be and is normally, kept locked. As indicated, the control device comprises a pull rod 36, levers 38, shaft 39, said shaft being rotatable in a bearing 40 attached to housing 1'7. The shaft 32 has fixedly attachedthereto a pulley 41,

driven by a belt 42, cooperating with a pulley 43, said pulley beingfixedly attached to the shaft, in motor 44.

The automatic control comprises a pair of cams and 46 adjustably secured to the end of vertical shaft 13. A lever 47 is pivotally attached to cover 19 at 48, and is provided with the forked ends 4998 cooperating with

cams

45 and 46. A

spring 50 is connected to the opposite end of lever 47, the opposite end of spring 50 cooperating with the operating lever 51 on a triple pole, double throw snap switch of standard make 52. A thermostatic control switch 53 of standard make is provided to guard against possible damage to motor or mechanism through obstructions or sticking of the doors.

'

Flanges

54 and 55 integral with the housing 17 provide means for the installation of the device, holes 56 being adapted to receive lag screws or bolts for fastening to the door framing or cap.

Doors

57 and 58 have attached thereto a pair of

straps

59 and 60 one above the other: adapted to-coincidently close the doors irrespective of a slight variation in adjustment of the

rods

5 and 6.

An electric lamp 61 is mounted on the housing 1'7'as indicated and is adapted to be lightedwhen the

doors

57 and 58 are fully opened, and remain lighted until the doors are fully closed.

' The wiring of thecircuit is indicated. in the wiring diagram Figure 9 in which 62 and 63 indicate the input power lines. The motor armature isindicated by character 44A, the motor field by 44F. Afour point snap switch 64 is provided at some desired point, as inside the & building, and a three point switch 65 with means for locking in open circuit is provided outside the building. The combination of switches may be extended as desired for control of the device from various locations.

Thermostatic switch 53 is normally retained with the circuit closed, as indicated. With triple pole double throw snap switch 52 shorted across

contact points

66 and 67, 68 and 69, .70 and 71 and

switches

64 and 65 in the positions indicated, the field circuit is from power line 62 through field 44f, wire 72, switch arm 65, wire 73, switch arm 74, wire 75, contact 70, switch arm 52c, contact 71, wire 76, thermostatic switch 53 to power line 68.

The armature circuit is from power line 62 through wire 99, contact 69, arm 52b,contact 68, wire 77, brush 78, armature 44a, brush 79, wire 80, contact 66, arm 52a; contact .67, wire 81, and thence with the field circuit through wire 72 and switch 65. 1

The lamp circuit is from power line 62 through wire 99, wire 82, lamp 61, wire 83 to wire 84, the circuit of which is broken at both contacts 85 and 86, consequently the lamp will not be lighted. As the doors reach full open position, switch 52 is reversed, the field circuit being broken at contact 70, the armature circuit reversed, and lamp circuit completed through line 62, wire 99, wire 82, lamp 61, wire 83, wire 84, contact 86, arm 52c, contact 87, wire 88, wire 76, thermostatic switch 53 to line 63, the lamp continuing lighted so long as the doors remain open. By moving switch 65 to contact 85, the circuit to field 44 is completed through line 62, field 44f, wire 72', switch 65 to contact 85, arm 89, wire 84, contact 86, arm 520 to contact 87, wire 88, wire 76, thermostatic switch 53 to line 63, the current in the armature 44a being reversed through line 62, wire 99, contact 90, arm 52b, contact 91, wire- 77, contact 93, arm 52a, contact 94, wire 81 to switch 65, thus reversing the motor and closing the doors, at which point, switch 52 is again reversed, the lamp circuit being broken at switch arm 520.

If instead of moving switch arm 65, switch 64 is reversed, the circuit would be completed through switch 65 to contact 97, wire 73, contact 96,

arm

74 or 89, contact 95, wire 84. Therefore by operation of either switch 65 or 64, the doors are opened, the lamp 61 being lighted as soon as the doors are fully opened, and switch 52 reversed, thereby reversing the motor connections to either armature or field as desired and breaking the circuit, except to lamp 61. By reversing either switch 640i 65 the doors are-closed, and when fully closed, switch 52 is reversed to original position, the lamp circuit being, broken as also the motor circuit. This arrangement'provides for the lamp being lighted as soon as the doors are fully opened, and maintaining said lamp lighted until the doors areclosed.

Should any obstruction prevent the doors from opening or closing, slowing up. or stopping of the motor would cause an increased current to flow through the resistance in the thermostatic control;

switch, causing a heat expansible element 100 to cause a switch therein to open and break the circuit, maintaining a broken circuit until manu ally restored. p

The motor 44 by means of: pulley 43, belt 4 and pulley 41 integral with shaft '32 causes said shaft tosrevolve with worm 31 affixed thereto, said worm driving worm gear 27 whichis fixed to shaft-24 androtatable in

bearings

25 and 26. Bevel pinion 21 is fixed to shaft 24 and meshes with bevel gears '15 and 18, thus revolving said bevel gears in opposite directions. Bevel gear 18 isfixed to shaft 13. Shaft 13 has the lever. 12 attached thereto at the lower end, and in the circuit described turns in a'counter clockwise direction, and by means-of arm 9 and. rod 6, with shoe 2 attached to door 58, pulls this door to closed positiomcoincidently therewith, bevel gear 15 with clockwise rotation, rotatable on; shaft 13, hub 14'being rotatable in bearing .16, and arm 11 being attached to said hub, closes door 57 by cooperation with arms 8 and rod 5,ish0e 1 being attached to door 57. r

As shaft 13 revolves in a counter clockwise di rection, cam 45 coacts with tine 98, lever 47 swinging on pivot 48 and swinging spring 50 across the pivotal center of the snap switch operating arm, spring 50 thereby reversing switch 52, breaking contact between points-93 and 94, 91 and 90, and 86 and 87, and making contact between .66 and 67, 68 and 69, and and 71.-

Having described an operative method of constructing and using the devicewhat I claim is:'

1. A device for operating a door comprising a shaft, a resiliently bendable spring arm con-' nected at one end to said shaft and having two limiting positions of rest, means for rotating the shaft to swing the arm from one to the other of said positions, and a link pivotally connecting the free end of the arm with the door for opening and closing the same upon movement of the arm from one to the other of said positions, said arm being substantially parallel with the link in one of said positions and at right angles to the link at a point intermediate said positions.

2. A device for operating a pair of doors comprising a pair of shafts, a pair of resiliently bend; able spring arms, each having an end connected with one of said shafts and each having. two limiting positions of rest, means for rotating the shafts to swing the arms from one to the other of said positions, and a pair of links pivotally connecting the free ends of said arms with the doors for opening and closing the same upon movement of the arms from one to the other of said positions, each of said arms being substantially parallel with its connected link in both of said positions of the arm and at right angles to said link at a point intermediate said positions.

3. A device for operating a pair of doors comprising a pair of shafts, a pair of resiliently bendable spring arms, each having an end connected with one of said shafts and each having two limiting positions of rest, a gear on each of said shafts, a pinion meshing with said gears, means for driving the pinion to swing the arms from one to the other of said positions, and a pair of links pivotally connecting the free ends of said arms with the doors for opening and closing the same upon movement of the arms from one to the other of said positions, each of said arms being substantially parallel with its connected link in both of said positions of the arm and at right angles to said link at a point intermediate said positions.

4. A door operating device comprising a shaft, a resiliently bendable spring arm mounted on the shaft and having two limiting positions of rest, a link pivotally connected between the free end of said arm and the door, and means for rotating the shaft to swing the arm from one to the other of said positions for opening and closing the door.

ERNEST A. HANSEN.