US2419014A

US2419014A - Electromechanical device

Info

Publication number: US2419014A
Application number: US467624A
Authority: US
Inventors: Fuchs Harry
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-12-02
Filing date: 1942-12-02
Publication date: 1947-04-15
Anticipated expiration: 1964-04-15

Description

A ril 15, 1947. H. FUC-HS 9,0 4

ELECTRO- MECHANICAL DEVICE Filed 1380.2, 1942 I IN V EN TOR.

Patented Apr. 15, 1947 Harry Fuchs, New York, N. Y. I

Appiication December 2, 1942, Serial No. 467,624

8 Claims. (Cl. 74-463) This invention relates to an electro-mechanical. device which in part or in its entirety has many different uses in different fields.

One object of the invention is to provide the continuous rotary movement of a shaft or pulley by a vibratory element, which may be a belt or other suitable element, with means for adjusting the tension between the vibrating element and the pulley, and intermediate means bearing against the vibrating element or equivalent to automatically compensate for wear of the pulley and! or vibrating element.

Another object of the invention is to provide a continuously operating electroresponsive device that will automatically take up and hold taut an intermittently released tape or other longitudinal material, without the necessity of having a loop in the tape to actuate a start-stop device which operates a motor for taking up the t pe.

Still another object of the invention is to provide vibration-absorbing means for a portion of the tape, which may be optically projected upon a screen, whereby vibrations from the continuously operating device or the source of the tape will not reach the said portion of the tape.

Still other objects of the invention will appear hereinafter and within the scope of the appended claims.

This invention accordingly consists in the method, system, combinations of elements, arrangements of parts, and in the several steps and relation and order of each of the same to one or more of the others, as will be disclosed herein. The many novel features embraced in this invention are far-reaching in their scope and are applicable in many embodiments other than described here, and I therefore do not Wish to be limited except as indicated within the scope of the appended claims and equivalents.

By way of illustration, one embodiment of this invention may be used for taking up, pulling, and optically projecting tape immediately upon its release by a stock quotation, news, or other ticker machine. This is a very great improvement over devices used heretofore, wherein as illustrated in Fig. 1, tape lil from a ticker machine moves rightwardly as indicated by the arrow. As the tape I is ejected and released by the ticker each time a quotation or other visible intelligence is I impressed thereon, the optically projected portion I! of the tape remains stationary while a vertically moving roller I2 descends, keeping the tape taut, and when the said roller reaches a predetermined point in its downward travel it actuates a motor device which pulls the tape across a slot whereirom it is projected upon a screen. y

It is obvious that the movement of the tape across the projection slot is subsequent to the ejection of the tape from the ticker machine and that quotations, or other-intelligence, on the tape forming the loop it are delayed for a time until the vertically moving roller i2 reaches the point at which it actuat-es the tape pulley motor. This delay in projecting the quotations from the tape due to the formation of the loop I3 necessary for actuating the start-stop device operatingthe tape pulling motor, whereby the tape is moved across an optical projector, very often results in considerable loss to traders in the offices of stock brokers who predicate their buying and selling orders in accordance with the quotations on the tape being projected.

It is therefore an object of thisinvention to provide the method and means to efiect movement andoptical projection of the tape substantially concurrently upon its ejection and release by the ticker machine, instead of subsequently to the formation of the loop l3 with the consequent serious losses as indicated above.

In the schematic drawings, which are simplified for purpose of clearness, Fig. 2 illustrates the electroresponsive device, which may be posi tioned on oneside of a base or panel, for taking up the tape; Fig. 3 illustrates the tape on the take-up platform operated by the electroresponsive device and optical means for projecting a portion of the tape; and Fig. 4 illustrates in a modification a roller tensioned against a'drum for moving the tape. H

Fig. 1 illustrates an embodiment in the old art wherein a loop is formed after ejection of the tape by the ticker machine and the stock quotations are thereby delayed before projection-upon ascreen.

- Referring to Fig. 2,6 1 indicates a shaft-upon which is secured the pulley l5 encircled by a belt Is one end of which is secured to avibratable armature H and the other end-to means ltffor adjusting the length of the belt, and this adjusting means It! may be a variable screw or rack feed or other equivalent device. I9 indicates an angular element having an offset 20 carrying a spring 2| to which is secured the armature l1, and the other offset 22 carries a non-magnetic intermediate element 23 which may be of resilient material such for instance as rubber, leather or fiber, and one of the objects of this intermediate element 23 is to prevent physical contact of the armature I1 with the electromagnetic core 24, or equivalent. When alternatin or interrupted or other kind of electric current from

lines

25 and 26 passes through electromagnet 2! it will vibrate armature ll whereby belt l6 will cause pulley l to rotate in a direction. It will be observed that the ends of the belt [6 cross each other at an angle, and one of the most important elements is the spring 28, or equivalent, exerting its force against an intermediate part of belt Hi to compensate for dimensional or other changes in the belt and/or pulley l5 due to wear, humidity, temperature, etc. Another important element is the rheostat, or other variable device 23 which cooperates with electromagnet 21 to produce a new and useful result, that of varying and providing the minimum pull on a tape prior to its release by a ticker or other continuous strip machine or supply source, and also to effect movement of the tape at a speed which is lower than the speed at which the tape is released.

In Fig. 3, the take up reel or platform 30. which may be positioned on the opposite side of the base or panel to which the structure shown in Fig. 2 is attached, is secured to shaft M. The tape 3| moves leftwardly in accordance with its release, such as from a stock ticker, and the end thereof being secured to shaft M in a manner well known to those skilled in the art, the successive layers of tape form a coil 32 which is removed when the coil reaches a certain size. The projector 33 optically projects upon a suitab e screen or surface that portion of the tape 3| which is between the vibration-absorbing

guides

34 and 35,

It is obvious that as the size of coil 32 increases, the take-up speed of the tape 3| decreases, and where a constant take-up speed and movement of the tape is desired, I have used an arrangement asshown inFig,4.

In Fig. 4 the roller 36 is held in the frame 3? which is pivoted at 33 and tensioned by spring 39, whereby roller 36 is tensioned against drum 40 secured to shaft l4, and the tape 3| passing therebetween is pulled by drum 40 as the tensioned roller 36 presses against it.

In operation, the pulley I5 is constantly being urged to rotate in a direction, as for instance through the vibration of armature H, but it will not pull or move the tape until it has been released by the stock ticker or other device. Where the roller and drum device is used to pull the tape, as shOWn in Fig. 4, the drum 49 may rotate and yet will not pull the tape until it is released by thestock ticker or other device. I have also obtained excellent results by adjusting the current varying device 29 whereby the tape is pulled at a lower speed than the operating speed of the stock ticker, and of course a governor and other well-known devices may be used to effect smooth and steady movement of the tape as it travels across the projector 33.

It will be understood that the disclosures in the specification and drawing are merely for purpose of illustration, and that many other arrangements and modifications fall within the scope of the appended claims.

I claim:

1. An electro-mechanioal device comprising a pulley, an armature, a frictional element secured to the armature and adapted to intermittently engage the pulley and move it upon vibration of the armature, an electromagnetic coil adapted to actuate the armature, and a resilient element positioned in the path of movement of the armature and adapted to be struck by the armature upon the energization of the electromagnetic coil.

2. An electro-mechanical device comprising an electromagnetic coil assembly having two offsets, an armature carried by one of the said offsets and adapted to be actuated by the electromagnetic coil, the other one of the said offsets adapted to be struck by the armature upon the actuation of the armature by the electromagetic coil, a rotatable element, and mean secured to the armature adapted to intermittently engage the rotatable element and move it upon vibration of the armature.

3. An electro-mechanical device comprising a rotatable element, an angular element having an offset, an armature supported by said offset, an electromagnetic coil secured to said angular element and adapted to actuate the armature, means secured to the armature adapted toi'ntermittently engage the rotatable element and move it upon vibration of the armature, and a resilient element adapted to cushion the impact of the armature at the end of its stroke upon the actuation of the armature by the electromagnetic coil.

4. An electro-mechanical device comprising a rotatable element, an armature, a frictional element secured to the armature and adapted to intermittently engage the rotatable element and move it upon vibration of the armature; an electroresponsive device adapted to actuate the armature, and a resilient element adapted to cushion the impact of the armature after the actuation of the armature by the electroresponsive device.

5. A device comprising a pulley, an armature, a support, a belt encircling the pulley having one end thereof secured to the armature and the other end to the support, means adapted to vibrate the armature whereby the belt secured to the armature will intermittently engage the pulley and move it in a direction, and a spring exertin tension on the belt independently of the said support.

6. A device comprising a pulley, an armature, a support, a belt encircling the pulley having one end thereof secured to the armature and the other end to the support, mean adapted to vibrate the armature whereby the belt secured to the armature will intermittently engage the pulley and move it in a direction, and a spring exerting tension on the belt independently of the support and preceding the attachment of the belt to the support.

7. A device comprising an angular element having two legs in angular relation to one another,

an electromagnet having two poles one of which is secured to one of the said legs, an armature associated with the other of the said legs and adapted to be actuated by the other pole of the electromagnet, a pulley, a support, a belt encir-; cling the pulley having one end thereof secured to the armature and the other end to the support, and a spring exerting tension on the belt independently of the said support.

8. The combination of a pulley, a belt encircling the pulley having one end thereof secured to an armature and the other end to adjusting means, means for vibrating the armature whereby the belt will rotate the pulley, and a spring exerting tension on the belt independently of the adjusting means.

HARRY FUCHS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Number 20 542,409

6 Name Date Eitzen June 23, 1936 Landis Aug. 8, 1939 Paterson June 29, 1909 Decker May 21, 1935 OLeary Apr. 8, 1924 McDonald Jan. 7, 1919 McDonald Nov. 8, 1921 McDonald Nov. 8, 1921 McDonald Nov, 8, 1921 Mansbendel June 8, 1926 Mansbendel Oct. 31, 1922 Ramsey May 24, 1921 Landis Aug. 8, 1939 Eitzen Sept. 8, 1931 Newman et a1 Sept. 4, 1934 Weinheim May 12, 1931 FOREIGN PATENTS Country Date France Aug, 11, 1922