US1525179A - Motor - Google Patents

Description

Feb. 3, i925.

W. H. GREENLEAF MOTOR Filed' 'July 10, 1922 @Vf/ym? WTO/17mi- Y Patented Feb. 3, 1925. Y

UNITED STATES PATENT OFFICE.

WILLIAM H. GREENLETAE, or HARTFORD,- commencer.

Moron.

Application :filed July 10,

To all whom z' may concern.'

Be it known that I, WILLIAM H. Gamarr- LnAr, a citizen of the United States, residing at Hartford, in the county of Hartfordk and State of Connecticut, have invented certain new'and useful Improvements in Motors, of which the following is a specification.

This'invention relates to a motor. The energy for effecting the action of the motor may be of any proper nature although electricity isgenerally utilized for the purpose.

' In like fashion the motor can be advantory manner.

l to this' disclosure.

tageouslyemployed for a variety of diierent things, although I have found the motor especially effective as the energy for Operating a time-piece. v

.Among the objects of the inventionis the provision of a device of the class set forth which is quite simple in construction and which is positive, yyet automatic in action and which will 'cause a result at stated intervals, suchforjinstance as in the illustration given for operating a time-piece whether in the form of a clock or otherwise.

In thedrawing accompanying and forming part of the present specification, I have shown in detail one of the many forms of embodiment of the invention which to enable those skilled in the art to practice the same will be setyforthfully in the following description. Obviously, I am not restricted I maydepart therefrom in a number of respects within the scope'of the invention defined by the claims following said description. y

' Referring to said'drawing:

Figure 1 is a horizontal sectional plan view. on the line 1-1 of Fig. 2 looking down.l

Fig. 2 is a side elevation. Fig. 3 -is a top plan view.

Fig. 4 is a view somewhat similar to Fig. 1, but with the. parts in different positions' 1922-. serial No. 574ml.

through the influence of the -motor and in turn the latter may be utilized for a large number of purposes, having been found particularly useful as an adjunct in a timepiece. The various parts of the motor may be sustained in any suitable manner as by the frame denoted in a general way by 2. This frame generally consists of two plates or disks 3 and 4 which are in practice virtually in exactregister and which are connected by'pillars or columns 5 and 6. The

disk 3 constitutes a base disk, the complement of disk presenting a crown disk. Assooiated with the framing is a second framing such as that denoted in a general way by 7 and, which may sustain, for instance, a

springt which .represents the auxiliary spring t of the appliance and which may function for operating clock work or any other proper mechanism. The second framing 7 consists as shown of disks or'plates Sand 9 spaced apart as the other disks 3 and 4; and supporting between them a spring barrel-10 which houses within' it a helical spring as found in clocks and time-pieces generally. Through the lspringof the barrel 10 is extended the arbor 11 to which one end of the spring in the barrel is connected, the other end of the spring being fastened to the circumferential portion of the barrel.

The arbor 11 as shown' has fastened to its upper or inner end the spur gear 12 in mesh.

with a pinion 13 concentric and'rigid with a ratchet wheel 14. It is sustained practically centrally upon the inner face of the disk or plate 3 as shown best in Fig. 2.f Between the disks or plates 3 and 4t is mounted an electromagnet comprising as shown the coils 15 and 16' connected electrically as by the Wire 17.

As already noted the electrical energyy may be supplied in any convenient manner as by the battery 18 shown in both Figs. 1 I

and 3. One of the terminals of this battery is oonnectedas by the Wire 19 with the magnet 15. From the other terminal of the battery a wire 20leads and has a ground connection with one of the plates 3 or 4)..

The armature for the two coils 15 and 16 is denoted by 21 and is practically ofl elbow form being supported pivotally, as at 22, at its-elbow for oscillation. The'upper or longer arm of the angular armature 21 coacts directly with both magnets 15 and 16 as shown for instance in Fig. 1. The

outer arrh, 0r branch of the angle lever has .21. 'This body 28 as shown has-'a rigid hook 29 around which is engaged a terminalotl a. spring 30, the other end of the spring -being connected practically similarly w-ith a hook 31 on the body or shank`32 of the detent or dog 3 3, this detent 33 like the pawl `27 being (3o-operative with the circumferential teeth ofthe ratchet 'wheel 14 which,

y it will be remembered, has an operative con- --nection with the arbor 11.

Between the contactor 26 and the .body or shank 32 I interpose a -pract1cal1y U`shaped spring 34, one branch or arm of 'which is bent around the upper end of the pillar 35 which extends between the plates 3 and 4 and the other branch of which is hooked into a `V-shaped notch 36at the end of the *lug or ear-37 which extends from the' short arm 38`which projects from the shank or body of the contactor. 26. Said contactor 26 as shown is mounted for swinging or oscillatory movement, being pivoted at 3 9 between the two plates or disks and 4. The -pivot 39 is practically in the form of a spindle extending between and sup-` -ported jointly by the plates or disks 3 and 4 and is.surrounded as shown by 'a coiled spring 40 which exerts a constant upward prt-:mure against the bpdy 'of the contactor Y 26 to maintain it in operative relation. The

arm 41 at the upper end of the contactor has'two portions or 4branches42 and 43, the slot or space between them .being denoted by 44. x l

It will be assumed that the parts are con- /nected up as illustrated in the various views and that the disks or plates8 and 9-with the intermediate elements are not present.

In this event, the action would be as follows: i

tion and with lcontacts 45 and 46 in circuit closed position. This allows -the energy from battery l8-to energize coils 15 and 16 thereby drawing the armature .21 toward the face of magnets 15 and 16 similar to position as shown in Fig. 4. This action tensions the coil spring 30 and causes the pawl 27 to engage a fresh tooth in.' the ratchet 14. When armature' 21has approximately reached the limit of forward move- 4ment the p in 25 in amature extension 23 being understood .that when the spring In Fgig. 1 the motor is shown with the armature 21 in forward. or extended posiengages the inner face of branch 42 of contactor 26 causing it to move .to position as shown in Fig. 4 or circuit open position. The movement of the mechanism now allows the armature 21 to be again drawn away fromv the .face of magnets 15 and 16 until the positionfas shown in Fig. 1 is again It will be noted theU-shaped spring 34 causes the contactor 26 vtofmove rapidly for snap into position when closing circuit.' This 1s accomplished by the contactor mov-.

ing forward of. the center line between pivots 35 and 39. When vthe contactor moves to circuit open position as shown in Fig. 4,

reached, where the operation is again repeated. 7

the U-shaped spring causes the contactor to remain positively in circuit open position.

The main spring ofthe clock mechanism is situated in the barrel 1 '0 and one end thereof has a fixed connection with the arbor 11 which as will be 4understood extends cen-v trally through the barrel.. To this barrel 10 is fastened the spur gear, 50, in mesh with the barrel pinion 51, on the arbor 52. The

parts describe-d partly are quite commonin clock mechanisms of various styles and therefore require no extended description, it

1n the barrel 10 is'wound up or tensione it aords, by reaction, the power necessary to actuate the clock work mechanism and thisl clock Work mechanism or something 'of' an equivalent nature 'may in fact be part of a time-piece or may constitute equipment in connection with any other mechanism.v As a matter of fact, the spring barrel 10 and the' parts associated with it between the disks or plates 8' and 9, may in some cases be altogether omitted. The main springof the appliance is the coiled spring 30 shown clearly in Figs. 1, 2 and 4, the spring within the barrel 10- constituting a secondary ,or auxiliary spring. Y

When the spring withinthe barrel 10 is woundup to the desired extent, apin asl53 on the arbor 11 willstrike va. pin as 54 on ooi the spur gear 50, thus preventing'further winding of'the auxiliary spring'within the barrel 10. For the purposes of my construction,the spring within the barrel 10 is considered an auxiliary spring although it is trueA that in vaftime controlledmechanism where such a spring is present, it is generally known as the mainmspring When the pin* 53 strikes the pin or stop 54, the auxiliary spring Within the barrel 10 can be wound no further; Beyond this point thecoiled spring 30 doeslintermi'ttently'function in the manner I'have already explained.

It is 'obvious that inthe event, the motive power ,or electrical current were disconnected, the reaction of the auxiliary spring in the barrel 10 would cause .the clock mechi anism-or such other mechanism as might be connected, to continue to function for a period of time equal to the unwinding of the auxiliary spring.

It will'be remembered that I have described the Jframing 2 as comprising two spaced or separated plates or disks 3 and 4c. The parts between the plates, have been described somewhat in detail. I iind that I can secure excellent results by having one of sucl. plates of non-magnetic material, and this I prefer to accomplish by having the plate c; disk 4 of such substance and brass answers satisfactorily my The complemental pla-te 3 may be of iron, steel or other substance and naturally may be magnetic.

The coils 15 and 16 of the magnet have associated with them, base and crown plates and I have found thatone of these plates desirably should be of non-magnetic material. -For example, the base plate of the coils might. be of iron, steel or equivalent magnetic mate-rial while the crown plate would be of non-magnetic material such as brass. The plates of the two coils 15 and 16 are rigidly mounted between the plates 3 and` What I claim is:

1. An appliance of the character described comprising electric circuit involving requirements.

a magnet, having an armature, a circuit controlling element operable by the armature, a terminal on the magnet having a flat face, the circuit controlling member having a portion provided with a iiat face, to engage said other face to close the circuit.

2. An appliance of the character described comprising an electric circuit involving a magnet having an armature, a circuit controlling element operable by the armature, and means acting constantly to impart successive opposite accelerated movements to the circuit controlling member after the movementthereof has been initiated.

3. An appliance of the character described comprising an electric circuit involving a magnet having au armature, a circuit controlling element operable by the armature and meansacting constantly to impart successive opposite accelerated movements to the circuit controlling member after such movement has been initiated independently of said means.

In Itestimony whereof, I hereby aix my signature.

WILLIAM H. GREENLEAF.

Witnesses:

ELIN C. GARDELL, HEATH SUTHERLAND.

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