US1122942A - Electric system for transmitting angular positions. - Google Patents

Description

P. KAMINSKI. ELECTRIC SYSTEM FOR TRANSMITTING ANGULAR POSITIONS.

APPLIOATION FILED AUG. 15, 1913.

Patented Dec. 29, 1914.

PAUL KAMINSKI, F NONNENDAMM, NEAR BERLIN, GERMANY, ASSIGNOR TO SIEMENS &: HALSKE A Ga, 0]? BERLIN, GERMANY, A CORPORATION OF GERMANY.

T S i ELECTRIC SYSTEM FOR TRANSMITTING ANGULAR POSITIONS.

1,122,942. Y Epeeification Letters Patent Patented Dec. 29, 1914. Application filed August 15, 1913. Serial No. 784,988. I

To all whom/it ma concern: such a way that one system, for instance a,- Be it known t at 1, PAUL KAMINSKI, it makes several-revolutions, whilethe other German citizen, and resident of Nonnensystem e is makingat most one revolution damm, near Berlin, Germany, have invented for traversing its entire measuring range. certain new and useful Improvements in The two sending elements 6 e.,, now, act in 60 Electric Systems for Transmitting Angular a well known manner upon the receiving Positions, of which the following is a specifielement '0 '0 which are located at the recation. ceiving station E. The rotors of these sys- My invention relates to a systemof the tems are so constructed that upon being kind in which the adjustment 1s obtained by angularly displaced they will act upon the '65 means of rotors which are commonly 1ncircuits for the driving motors M M the fluencing the position of the object upon former, for instance, being destined for the which the position is to be produced, and coarse and theilatter forthe fine adjustespecially to' a novel system of this characment. Both motors work upona diiierenter for producing different positions of mtial or planetary gear I whose intermediate- '70 'struments such as telescopes, diopters or wheel is rotatably mounted upon an arm contrivances for taking aim-upon any deserving for the rotation-of the axle w for sired object such as search lights and the displacing the object which shall follow the 1 like by means of a plurality of motors, one motion of the sending apparatus. From of said motors effecting the coar'se, the other this axle 'w furthermore, a device is operthe line adjustment in any desired plurality ated for again interrupting the contacts of steps. f provided on the receiving elements after wMy present. invention more particularly said object is in its proper position, and consists of an improvement of the system therewith cause the standstill'o'f the motors 25 forming part ofv an application for patent M and M If, for instance, an adjustment -Ser. No. 599,173, filed by H. Barkhausen and is made at the sending station G, then at myself under date of Dec. 24, 1910. In the the receiving station E the rotors of the two system described in the aforesaid applicareceiving-elements 0, and '0, in the arrangetion theiadjustment'of the several steps can ment shownwill establish a contact at 11 and '80 be accomphshed either in succession to each k respectively and therewith close the cirother or sov that the several adjustments are cuits for the motors M and M Both modependent on each other in a certain mantors accordingly will start. If the motor M ner. My present invention, now, comprises for the coarse adjustment has effected a corv a modification of thissystem in that the adresponding an ular motionof the object by 85 j'usting devices are electrically-independent the rotation of the planetary gear 1),, then 99 of each other so that the adjustment of the by the axle w, the interposed gear" a and coarse and the fine steps may be accomthe worm gear 8, the contact at 11 will again plished simultaneously. In brief my presbe interrupted, at the same time interrupt- .ent invention consists in interposing a difing the operating current for the motor'M 40 ferential gear between the motors commonly The motor M Wlll continue to operate until effecting the displacement of the object on the'fine adjustment has been accompl shed the onehand and the obj ect upon which the to, the desired degree, and by a correspondmotionshall be transmitted on the other ing motion of the planetary gear 7 this hand. Also the motors by providing proper motor will still further turn the ob ect to 45 ratios of gearing mayv be so chosen that be ad usted. 4 The emplacement of t e obloo their sizes will be proportioned to the range ect, on the other hand, will simultaneously of adjustment. act by means of the gear a and further My invention will be more fully undertransmission members u upon the contacts stood .by reference to the accompanying It, which rema n closeduntil the fine ad ustdrawing which shows in a diagrammatic ment also has reached its proper value. As

view one form for carrying my invention either motor traverses the entire scale of i t fi fl the svstem to be ad usted and the motor for The sending apparatus G consists of two the fine ad ustment consequently Wlll have sending elements e,, e, which maybe couto pass 0 through a small range tlns 55 pied-to. each. other by gears or the like in latter motor mayect upon th adj ing dedevices a th ree-phase alternating current rotor is located, the rotors of the corresponding. transmitting and receiving instruments being. connected by the three phase Wires. In the drawings these three wires are merely shown as emanating from the instruments.

Moreover, .the rotor of the transmitter G is connected with the handle for setting the desired"- angular position, whereas the rotor of the receivers fi l-W are each connected with a contact spring respectively. The result'is that when the transmitter rotor {is moved angularly, the receiver armature according to well known laws will follow into the same angular position, Transmitting devices of this character are now Well 'known' in the art, 'so that their detail description and illustration has beenomitted in the so present application. I w p 1 Instead of the movable contacts 6 and-la for the operationof the the drawing,also fixed contacts may be employed in this case for adjustment thestators- 85 of o, and a, are turned back to thesame-extent as the rotors have been adjusted before from the sending sta-tion. It is of course understood that the switching for the circuits for driving the motors may be done by .40 relays which are properly inter 'osed.- It is:

alsopossi-ble, as wellun rstoo by the art, ,to omitthe gear between the rotors of the sending elements. A In this case preferably either rotor shoul be provided with-means for retaining the rotor in a plurality of motors, as shown in.

proper angular positions and then the adgusting of either rotor made by a separate iandle. Also the senders may be immediately connected with a diopter or any contfii'vance for taking. aim as well known to t eart,

havingthus described my in mt ibn claim as new and desire to secure by Letters Patent ofthe United States 1. An electric system for producing angir' lar positions consisting of a sending. element for fine adjustment, a sending element for J coarse adjustment, corresponding receivin elements which are respectively co'nnectfe with said sending elements, a motor electrically controlled from said receiving element for coarse adjustment, a second electric inotor controlled from said receiving element for fine adjustment and a difi'erential gear interposed betwee'nea chof said motors and the object upon which the angular position shall be produce "2. Anel'ectric'system forprod'ucing aga.

lar positions consisting of a sending elementfor line adjustment, asending element for coarse adjustmenfl corresponding receiving elements which are respectively connected with said sending element's,-a'm ot'or electri: cally controlledlfiomsaid" receiving element- .for coarse adjustment, a second motorlel'ecratio ofgearing to said object. than said motor for coarse adjustment,

In witness whereof I have hereunto set my signature inthe presence of two subscribin .witnesses.

ram Kiiinasm. Witnesses:

HnrmrHAsrnn, V ARTHUR Sennonnnn.

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