US2018364A - Remote control device - Google Patents

Description

1935- P. E. G. JENSEN REMOTE CONTROL DEVICE Filed Aug. 15, 1931 2 SheetsSheet l m s H NW N N 0 E. VE%A WL w P REMOTE CONTROL DEVICE Oct. 22, 1935.

2 Sheets-sheaf. 2

Filed Aug 15, 1931 N NENTOR PAUL 5.6. JENSEN ATTORNEY Patented Oct. 22, 1935 UNITED STATES PATENT OFFICE REMOTE CONTROL DEVICE Delaware Application August 15, 1931, Serial No. 557,407

1 Claim.

This invention relates to the remote control of amplifiers such as are used in the recording and reproduction of sound pictures and the like, and has for its principal object the provision of an improved apparatus and method of operation whereby the operation of one or more amplifiers may be readily controlled from any desired point. A further object is the provision of means whereby the adjustments made from a remote point may be observed by the operator who eflects such adjustments. A still further object of the invention is to provide an improved remote control apparatus which is of simple construction and readily operated to produce fine adjustments in the apparatus controlled.

My invention will be better understood from the following description when considered in connection with the accompanying drawings, and its scope will be pointed out in the appended claim.

Referring to the drawings:

Fig. 1 illustrates diagrammatically the remote control apparatus as applied to a controlled device; and,

Fig. 2 is a perspective view illustrating certain features and various parts of the device to be controlled.

The control device includes a motor III which is supplied with single phase current through the terminals I I, a phase splitter l2, a switch provided with contact members l3 and I4, and a stop switch provided with contact members l5 and I6 arranged to cooperate with a pin ll mounted on a gear l8. 7

The motor It has mounted on its shaft a pinion l9 which is coupled to the gear 18 through a plurality of gears 20 to 22. Also mounted on the same shaft 23 as the gear 22 is a gear 24 arranged to cooperate with a drive member or chain 25 through which a gear 26 is driven. As hereinafter explained, the shaft 23 and the shaft 21 of the gear 26 are connected to the controlled devices which may be, for example, resistors connected in the circuits of diiferent amplifiers.

Mounted upon the shaft 28 of the gear i8 is a contact member 29 which is arranged to cooperate with a plurality of contacts 30 mounted upon a support 3i. It will be observed that the con- .tacts 30 are connected to a series of lamps or like indicating devices 32 mounted on a member 33, and that these lamps are connected on one side through a common terminal 34 to a suitable source of current supply 35.

In order that the controlled device may be controlled from different points, terminals 36 are provided. It will be readily understood that 5 these terminals may be connected with a switch having contacts similar to the contacts l3 and I4. As indicated by the broken line, the control switch and indicating device are not located at the same point as the remainder of the apparatus. 10

The construction of the control apparatus is shown in Fig. 2. For purposes of manual control a knob 31 is mounted on the end of the shaft 23. The practical embodiment of the device also includes a gear member 38 interposed between the 1; gears 20 and 2|. In order to simplify the drawings this gear member has been omitted in Fig. 1. As will be readily understood, the lower ends of the shafts 21 and 23 are connected to the devices to be controlled, these shafts being driven togo gether through the chain 25. As illustrated in Fig. 2, an indicating element similar to that previously described may be utilized to indicate the adjustment of the apparatus connected to the shaft 21. For this purpose a member 39 provid- 35 ed with a contact member similar to 29, may be arranged to cooperate with contacts interconnected with the contacts 30 through the cable 40.

It will be readily understood that adjustment of the apparatus in one direction is effected by Q0 closure of the contact l3 and adjustment in the opposite direction is effected by closure of the contact l4, and that the effect of each adjustment may be readily observed by the operator of the reversing switch.

Having thus described my invention and the operation thereof, what I claim is:

A control unit for sound picture apparatus, including means for adjusting a control of said apparatus at the apparatus, means for actuating the 4.0 adjusting means comprising a reversible motor,

a reversing switch in the audience for controlling the operation of said motor, manual means at said adjusting means for actuating the adjusting means independent of said motor, and 5 luminous means adjacent said apparatus and visible from said reversing switch for indicating the position of the adjusting means.

PAUL E. G. JENSEN. 5o

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