US1299509A

US1299509A - Mechanism for controlling movement

Info

Publication number: US1299509A
Application number: US87493714A
Authority: US
Inventors: Jean Alexandre Rey
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-11-30
Filing date: 1914-11-30
Publication date: 1919-04-08
Anticipated expiration: 1936-04-08

Description

J. A. REY.

MECHANISM FOR CONTROLLING MOVEMENT.

APPLICATlON flLED Nov.3o,1914.

1,299,509, Patented Apr. 8,1919

2 SHEETS-SHEET 1.

J. A. REY.

MECHANISM FOR CONTROLLING MOVEMENT.

APPLlCATlON FILED NOV- 30.1914.

1,299,509. Patented Apr. 8,1919.

2 SHEETS-SHEET 2.

JEAN ALEXANDRE REY, OF PARIS,

OFFICE.

FRANCE.

MECHANISM FOR CONTROLLING MOVEMENT Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed November 80, 1914. Serial No. 874,937.

. To all whom it may concern;

Be it known that I, JEAN ALEXANDRE REY, of 26 Avenue deSuifren, Paris, France, engineer, have invented a new and useful Improvement in Mechanism for Controlling Movement, which improvement is fully set forth in the following specification.

This invention has for its object improvements in mechanism for controlling movement at a distance, such improvements being particularlyapplicable to mechanism for the central control of guns on board ship.

For this purpose it is necessary to be able to simultaneously and continuously (or permanently) aim several uns from a single control station where t e fire director is. The guns should therefore always remain parallel with each other and with the controlling member.

Nevertheless in practice it is necessary to provide for a case in which the guns deviate from the position which they should be in. This may take place after firing by reason of the great strains thereby produced, or this may take place owing to some abnormal resistance, or to damage, or to the momentary movement of one gun only.

In this case so soon as the cause of the abnormal deviation has disappeared, the gun should return of itself to the normal position. I

According to this invention I combine together two controls of known type operated from a single control station (an aiming telescope for example) and actuating one or more controlled members (guns and search light for example) through the intermediary of differential gearing or its equivalent. One control is rapid (but may be occasionally faulty because of a certain angular separation between the control member and the controlled member or members) and mainly actuates the controlled member or members, while the other control, which is accurate for such angular separation, makes the corrections and acts to correct the deviation which may take place between the control member and the controlled member or members, the two controls acting simultaneously.

The second control should respond for a deviation less than that required for the precision agreed upon.

The invention is illustrated in the accomcircuits of the two motors e and e,.

, panyie drawings as pp ied to m n n where1n Figure l is a diagrammatic view illustrating one arrangement embodying the invention, and,

Fig. 2 is a diagrammatic view illustrating a modified arrangement embodying the invention.

a is a usual aiming telescope mounted on an ainnng apparatus or bridge I); a represents a support for the bridge with which support guns such as cl should be maintained parallel.

One gun d only is shown, but the circuits are indicated to Show that any number of guns may be controlled simultaneously.

In Fig. 1 is shown an arrangement for aiming a gun with respect to altitude. A small dynamo electric machine 6 is employed to rotate the central controlling element, such as a telescope a, through the intermediary of the Worm 1, sector 2, support a and bridge 6. A second dynamo electric machine e, is connected in parallel with the motor 6 and actuates the controlled element. such as a gun d, through the intermediary of differential gearing f to be described hereinafter, it being understood that there is a separate motor 6, for each of the con trolled elements. The motor 22, constitutes the main actuating means for the gun d and may cause the gun to be rotated in either direction and at the required speed, simultaneously with a corresponding movement of the telescope, through manipulation of a reversing control or switch-lever g in the This lever is positioned to be operated by the fire director when stationed at the telescope a. As illustrated, the system controlled by the lever g is of the potentiometer type which admits of the obtaining of the speed desired. As motors e and e, are connected in parallel, actuation of the control-lever 9 starts both motors in the same direction and at the same speed. These motors are synchronized by any desired mechanism, that illustrated comprising three rings h mounted" upon each of the respective motor shafts and engaged by brushes connected in parallel. Thereby each of the motors constitutes a generator of alternating current of similar phase, and as these generators are i 1ts axis connected in parallel, substantially synchronous movement of the motors is insured. The secondary actuating means for each gun comprises a direct-current motor e mounted adjacent the motor 6 Motor 6' is automatically actuated to rotate in elther direction and at a suitable speed by a controlling mechanism which is operated as soon as the gun d deviates from its normal or predetermined relation with the support 0 by an amount greater than that necessary for the required precision. This motor e is connected with the differential by which motor 6 moves the gun ct. The arrangement illustrated and preferred, though various other arrangements will suggest themselves to those skilled in the art, comprises worms 3 and 4.- upon the shafts of motors e and 6 these worms respectively meshing with worm-wheels 5 and 6 upon the shafts of bevels 7 and 8. Bevels 7 and 8 mesh respectively with bevels 9 and 10 journaled on -gear 11, and constitute a difierentlal. Gear 11, through pinion 12, worm 13 and sector 14, -I110Ves the gun d to the desired angular amount. stationary and thereby holds bevel 8 station ary. The rotation of the bevel 7 by motor 6 then produces a rotation of gear 11 about whereby the gun a3 is moved. If motor 8' is actuated, it causes a rotation of bevel 8 which, depending upon the direction of rotation, tion of gear 11, correcting the'movement imparted-to the gun d by motor 6 hile various means may be employed to automatically actuate the motor 6' when gun d and telescope a lose their normal or predetermined relationship, such as parallelism, that preferred comprises an apparatus of known construction employing the principle of the Wheatstone-bridge and only shown conventionally on the drawing. Mounted to move respectively with the support 0 and the gun d are

movable contact members

15 and 16 which'sweep over graded resistances mounted in the boxes 2' and 71'. So long as the-

contact members

15 and 16 move corresponding amounts, the variation in the resistance of the respective arms of the circuit is equal and no current flows through the bridge circuit. So s'oon, however, as

contact members

15 and 16 move dlsproportionate amounts there is a corresponding difference in the two arms of th a difference of resistance in the e circuit, whereby there is potential between the boxes 1 and i, and acorresponding flow of current through the bridge circuit. I This flow of current through the bridge circuit may be utilized in any preferred way to start motor 6', in the appropriate direction for correcting the movement of the gun d. The

preferred arrangement comprises relays (not shown) actuated by the current flowing mg switches in.

. the relays are restored to normal Normally, motor e is.

will vary the speed ofrotageared to through the bridge circuit, these relays closthe circuit of the motor c to start the same in either forward or reverse direction as the case may be. As soon as motor e has caused a correction of the deviation of the gun (l and restored it to parallelism with the support 0, the balance of the electrical

system contact members

15 and 1 6 is restored, no current flows through the bridge circuit, and position and motor 'e again held stationary. The motor e comes intoaction in the following cases I 1. When speedis'very the brushes of the motors e, e, is no longer suificientto insure their synchronism. k

2. When the gun has deviated for any reason.

When reason.

low, the voltage at the telescope has deviated for any controlled by the J 4:. When the back lash of the gearing between the motor 6 and the gun (Z exceeds the required precision.

5. When an accident or abnormal resistance renders the motor 6, stationary.

The training of the gun is effected on the same principle by other similar parts.

In place of continuous current motors provided with three rings any other type of synchronous motor may be employed.

In place of the differential gearing any p other equivalent arrangement may be employed.

Fig. 2 shows amodification applied to the training of guns, this modification differing from that heretofore described in that motor e directly rotates a table j through the worm 17, worm-gear 18, worm 19, and teeth upon the table y. Table j carries a direct-current motor is and a gun d, the latter being mounted upon an auxiliary table 20 which may be rotated by the motor k through the intermediary of the worm and worm-gear 21. The means for starting and stopping the motor 70 is the same as that heretofore described With respect to the modification of Fig. 1. So long as motor 6, parallelism with support 0, stationary and the auxiliary held by motor is stationary with respect to table 3'. Upon a deviation from the aforesaid parallelism, motor lc will rotate in the appropriate direction to rotate auxiliary table 20 and gun d to an ount to rectify the deviation.

Claims:

1. In a mechanism for controlling movement at a distance, the combination with two or more movable elements normally moving in a predetermined relation and synchronized motors for moving the same, of means for correcting deviations from said predetermined relation comprising an auxiliary motor one of said elements and electrical moves gun d in naeaeoa devices under the control of said elements for starting and stopping said auxiliary motor upon the occurrence and correction motor connected to the opposite side of said differential, connections between said difi'erential and the corresponding said element, and electrical devices under the control of said elements for starting and stopping said auxiliary motor upon the occurrence and correction respectively of a deviation.

3. In a mechanism for controlling movement at a distance, the combination with two or more movable elements normally moving in a predetermined relation and synchronized motors for moving the same, of means for correcting deviations from said predetermined relation comprising an auxiliary motor geared to one of said elements, and Wheatstone bridge apparatus operatively connected with said auxiliary motor for starting and stopping the same.

4. In a mechanism for controlling movement at a distance, the combination with two or more movable elements normally moving in apredetermined relation and synchronized motors for moving the same, of means for correcting deviations from said predetermined relation comprising an auxiliary mo- 7 tor geared to one of said elements, and

Wheatstone bridge apparatus controlled by said movable elements and operatively connected with said auxiliary motor for starting and stopping the same.

5. In a mechanism for controlling movement at a distance, the combination with two or more movable elements normally moving in a predetermined relation and synchronized motors for moving the same, of means for co-rrecting deviations from said predetermined relation comprising a differential connected at one side to one of said motors, an auxiliary motor connected to the opposite side of said difi'erential, connections between said differential and the corresponding said element, and Wheatstone bridge apparatus operatively connected with said auxiliary motor for starting and stopping the same.

' 6. In a mechanism for controlling movement at a distance, the combination with two or more movable elements normally moving in a predetermined relation and synchronized motors for moving the same, of means for correcting deviations from said predetermined relation comprising a difi'erential connected at one side to one of said motors, an auxiliary motor connected to the opposite side of said differential, connections between said differential and the corresponding said element, and Wheatstone bridge apparatus controlled by said elements, and pperatively connected with said auxiliary motor'for starting and stopping the same.

7. In a mechanism for controlling movement at a distance, a controlling element. one or more controlled elements, means whereby movement of the controlling element normally produces a corresponding movement of the controlled element or elements, and diflerential mechanism in the driving train of each controlled element and comprising an independently operated driv-r ing member actuated automatically upon the occurrence of any deviation of a controlled element from its normal relation to the controlling element for correcting said deviation.

8. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, centrally controlled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corre sponding movement of the controlled clement or elements, and differential mechanisin in the driving'train of each controlled element and comprising an independently 0perated driving member actuated automatically upon the occurrence of any deviation of a controlled element from its normal relation to the controlling element for correcting said deviation.

9. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, means whereby movement of the controlling ele- .ment normally produces a corresponding movement of the controlled element or elements, and means for correcting any deviation of a controlled element from its normal relation to the controlling element comprising an auxiliary motor geared to each of the controlled elements and means for starting and stopping the corresponding auxiliary motor Whenever a deviation from said normal relation respectively occurs and is corrected.

10. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled element-s. centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, and means for correcting any deviation of a controlled element from its normal relation to the controlling element comprising an auxiliary motor geared to each of the controlled elements and means for starting and stopping the corresponding auxiliary motor whenever a deviation from said normal relation respectively occurs and is corrected.

11. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for'moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, a difi'erential between each controlled element and its motor, an auxiliary motor connected to each difi'erential, and means for starting and stopping the corresponding said auxiliary motor whenever a controlled element respectively deviates from and returns to its normal relation to said controlling element.

In a mechanism for controlling move ment at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, a differential between each controlled element and its motor, an auxil iary motor connected to each differential, and means for starting and stopping the corresponding said auxiliary motor whenever a controlled element respectively deviates from and returns to its normal relation to said. controlling element comprising Wheatstone bridge apparatui's operatively connected with said auxiliary motor.

13. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, a differential between each controlled element and the motor, an auxiliary motor connected to each difl'erential, and means for starting and stopping the corresponding said auxiliary motor whenever a controlled element respectively deviates from and returns to its normal relation to said controlling element comprising Wheatstone'bridge apparatus controlled by said elements and operatively connected with said auxiliary motor.

14. In a mechanism for controlling move-- ment at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlledg element or elements, and means .for correcting any deviation of a controlled element from its normal relation to the controlling element comprising an auxiliary motor geared to each of the controlled elements and electrical means for automatically starting and stopping the corresponding said auxiliary motor whenever a deviation from said nor mal relation respectively occurs and is corrected.

15. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, and means for correcting any deviation of a controlled element from its normal relation to the controlling element comprising an auxiliary motor geared to each of the controlled elements, and Wheatstone bridge apparatus operatively connected with said auxiliary motor.

16. In a mechanism for controlling movement at a distance, a controlling element, one or more controlled elements, centrallycontrolled synchronized motors for moving said elements whereby movement of the controlling element is accompanied by a corresponding movement of the controlled element or elements, and means for correcting any deviation of a controlled element. from its normal relation to the controlling element comprising an auxiliary motor geared to each of the controlled elements, and Wheatstone bridge apparatus controlled by said elements and operatively connected with said auxiliary motor. I 0

In testimony whereof I have signed thls specification. in the presence of two subscrib-