US2463448A - Vbsratdft - Google Patents

Description

March 1949. c. s. WEYANDT ELECTROMAGNETIC VIBRAT OR 2 Shets-Sheet 1 Filed Aug. 7, 1945 llllllllllll ll Imventor oayz swe andta/ (Ittomeg March 1, 1949. C, s, WEYANDT 2,463,448

ELECTROMAGNET IC VIBRATOR Filed Aug. 7, 1945 2 Sheets-Sheet 2 24- -4- ff i i ry fl/ WCy d attorney;

Patented Mar. 1, 1949 "Ki-i I- II f :1 Er" UNITED STATES PATENT OFFICE 2;16344-8 ELECTROMAGNETIC vffllmffiit GaflS. Weyandt, Homer fli ty, Pa.

Application August 7', 1945, 'seriai'No. 609,416

e-drums. (Cl. 271-:89) I p 1 2 invention 'fl-ates to a vibrator particutherefor. As these supports are alike in corilarly suitable for producing stacks of iamiriae', stiuotiongorily one of them Will be described in suoh as paper '01 cards; with the edges in al'ig'ridetail. The supporting member zt oon pi ises a merit. N chahne1=siiape& iiittal strip' zl with holes 2-8 It is an object of the invention to provide a a formed mediaiilytherethrough 'at'in'te'rvals' aloiig vibratory apparatu afda'pt'e'ci to-re'eeive a'stadk of the strip, the rubber pads '29 and- 31 have one laminae "forrapidly vibrating thestack to cause oi their respective ia'ce's secured to each side of the edges tobeoome-aligned. the 'oharinelstrip '21- by vulcanization or in any Another dbjeet is the rovision of "a vibrating othe suitable manner. The pads are right and apparatus whieh is relatively noiseless, compact 1o left hand, 'ai dthe faces thereof are substantially and readily controlled by the operator. parallel. The ends of the pads preferably are' These and other objects of the inventio will formed as a 'fiil'et' toi'eii'uoe tension -onthe ioir t be apparent from a consideration of the followbetwe'eii the metal robber at its ends. A'ngfle" ing specification taken in connection with the strips 32 a'iii'd '33 are vulcanized to the o posite annexed drawings showing a preferred embodiif; faces of jt'h'e pads f9 :inci '3 I arid on one side merit of the invention by way of example, and screws 34pass "through holes 35 in the aiigl'es'tfip wherein: to secure the-vibratory member to the tal-bl'e '21. Figure 1 is a rear view of a preferred embodi- Bo1ts--36,"passiiig throi gh holes 28 iii the V iblfir ment, ti oiij members 23 and fiend through holes 31 in Figurez is a section view taken on line. II-II 2h the haiiig'esii, 6 "secure the vibration membersto' of Fig'ui-e '1, the casing". llhiatilre 38 iii the form 0'1" 3 FlgureB- is a top viewof t'he housing of Figure lamihateli bar has angle-strips 39 and Hi rivetedi 1 with the table and vibrating mechanism reto the sides thereof, and is welded o'i otherwise moved, secured to a bar K2 which in turn is secured to Figure '4' is ab'ottoii view simiIafto-Figtire 3, 2.5 thetable zlj'pfeferablyby bolts 43'. Figure 5' is s front View or a modification set At the. bottom at one side the casin has a within a oabinet, vertical wall 45 with "a reen'forcifig ortion- =86 ex- Figureo'is'asideview-of thek'n switch meohtending at right angles the'retqami at the top ahism, V mer'g'in'g shelves 6 and 6'. This wall is bored Figure '7 is a top View oi the kiiee switch m'e'cliat 41 to receive lbo-ltsj fe which ass through the ariis'm, eiiterior angle .pfat'es 5| of a vibratory member 52' Figure '8 is a lfrbnt view of the switch m'e c'lisimilar to members 23 ar d if! to hold the memanism on n enlarged-scale, aria ber 52 in osition on wall 45. A bolt '53 p sses Figure '9 is a side view of a detail. through the middle ohaniiel of strip 54 of vibrafiefei liii'g to the drawin Figure 1, "tI'ieije' is .35 to'ry member 5 2 and secures a "plurality of iteetishown tt casing which prefereblyis iii the 'i'orm fiei disks 3 5 thereto, an insulation washer 56 of an integral heavy casting i having a middle being interposed. These're'otiiier disks referably bracket '2' with reeri'forein'g ribs 3', 3'., and a botafe'oi the copper oxide type, althou h any other tom bar 4 and connecti'iig sloped side portions '5 suitable form 'of iectifier' may be emplo ed. A merging-With a flange; or she f '6, 6" extending to 'cor d iit 5'1 ooritairrs'eobductors connected to-the' internally along" the eii'ci'sof'the easti'rig". E} rectifier disks aa'rid at its opposite end "is boris ii d lec'tromagnet lima'iieup oi -mi i' ifis netted to a tfeadietype switch ss Whieh may be riveted-together has angle plates ll an i f2 cdiiti "byeoiid uctfdr'sfi fi and iiiale plug 6U to riveted thef'fid fifi opiiosifte elites, and bolts f3 i v ass through" holes -|I, surrounded by 'firi'ish'e'd elevatedi bosses it, and the angle -plates to hold the *eleetromeeriet in position. The iriidtiifl; of the e1eetromagiiet is surrounded bye coil is of Wire; suitably held thereon by a clip i1 ar' ifl- "manner to ooii-t'rol the actuating currentresting" on an insulating and uls'hiohingibai i8. "foft e el'oti-oiiiagnt. Th bottom of case lhas The" table '21 referably is constructed oihardcoil springs 63* or other suitable" vibrator 'me'r'i wood, such "as maple, but'may'be of metal, ressed fibrous com osition, or other suitable inaterial. A pair oi 'vibration iiiembers 23 asiiti 2t on o I posite sides of tbibf I i serve: as 'sia'lifig tsor other part oi the circuit iii able source of alternating current, through conductor 59, switch 58 and conductor 51 to the rheostat BI and to the rectifier 55, which passes successive current impulses of like polarity spaced by zero current intervals. This intermittent pulsating current which is controlled by rheostat 6|, is transmitted to coil 16 on the electromagnet l and causes armature 38 to be intermittently attracted so as to vibrate and cause vibration of table 2| to which it is connected, the amplitude of vibration being regulated by the rheostat 6|. For example, if plug 60 is connected to a sixty cycle source of alternating current, this being most commonly employed in commercial wiring,

the armature and table will be vibrated at the rate of 3600 times per minute. If a current source of 25 cycles is used the table vibrates 1500 times per minute. The specific type of vibration members 23 and 24 shown is preferred because of the I elimination of noise and its long life, the rubber pads being vibrated in a state of shear or tension, and they are selected to have, with the table, a natural frequency of vibration close to the recurrence periodicity of the current impulses. For example, the vibrating mass may be one fifth or less of the weight of the non-vibrating base.

In stacking paper or cards, the stack of paper 64 (Figure 5) is placed endwise on the table and is supported against toppling by the hands of the operator or by any other support, and the operator new steps on treadle switch 58 to actuate the electromagnet and cause table 2| to vibrate substantially vertically at a rate of 1500 times per minute or more. The vibration of the table is transmitted to the paper stack and appears to free the individual sheets of paper so that they may fall until the ends of all of them rest on the table to form a smooth edge stack. The stack then may be turned at right angles to align the other edges of the paper, and to prevent the papers from getting out of alignment they may be supported edgewise against a surface at right angles to table 2|.

In the modification shown in Figures 5 to 9, wherein like parts are correspondingly numbered, the casing l is supported by the springs 63 on the internal shelf of a cabinet 66 which contains an operating or initiating switch. Inside cabinet 60 on a shelf 65 is secured an angle strip 68 to which is secured a plate ll carrying the switch mechanism. A portion of plate H is turned up at 12 and a plate 13 of rubber or other suitable flexible or resilient material is secured thereto between plate M and turned up portion 12 by bolts 15. To the other end of plate 13 is suitably secured as by rivets 16, a switch operating arm 11 so that the rubber plate 13 forms a flexible hinge which does not transmit any substantial Vibration to arm H. A rubber covered handle 18 extends through the opening 8! in the all;

cabinet, and a sponge rubber cushion 82 held in the opening ill of the cabinet inany suitable.

manner is employed to further dampen vibration of the handle. A switch case 83 secured on plate H may contain a snap acting switch of any suitable type, fOr example, like that disclosed in Patent No. 2,172,673, issued on August 12, 1939, to Malcolm W. Eaton, and has an actuating button or rod 84 extending therefrom adapted to be contacted by switch arm 11. An extension 85- of plate "H has a pin 88 extending therefrom to which is fastened one end of helical spring 81, the other end being fastened to an eye 88 in switch arm ll. Spring 87 preferably is covered by a tubing 89. of rubber or other vibration damp- 'ment.

4 ing material. Spring 81 biases arm 11 to the left as seen in Figure 7 and when the switch arm 11 is moved to the right it pushes rod or button 84 and closes the snap action switch in case 83 to actuate the electromagnet. The preferred construction is such that arm 11 can overtravel a considerable distance in actuating the switch.

In operation the operator holds a stack of papers on edge on the vibrator table 2| and with his knee pushes switch handle 18 to the right to actuate the switch 83 and start the table 2| vibrating until the edges of the paper are in align- When the operation is finished he releases the switch handle 18 by withdrawing his knee and the spring 81 retracts the arm 1'! and 7 allows switch 83 to open to stop operation of the table. The hingin g of the switch arm 11 on a vibration absorbing pivot prevents or reduces transmission of vibrations thereto, which would be extremely disagreeable to the operator, and the sponge rubber cushion also prevents transmission of vibration from the cabinet to the handle.

Preferably the cabinet is set on vibration absorbing pads 9! or springs to prevent transmission of I vibration to the fioor,

Various modifications may be made without departing from the spirit or scope of my invention.

What I claim as my invention and desire to secure by United States Letters Patent is:

1. In a paper jogger the combination of, a base, a table, spaced rubber members for resiliently supporting the table on said base for vibration relative thereto in a vertical rectilinear path, a

vibratory motor having an armature member and an electromagnetic field member, means for securing the armature member directly to the un-. derside of the table substantially centered be-v tween the spaced rubber members, means to independently secure the field member on the base.

to hold said members in operative spaced relaticn and to provide a magnetic coupling there between, and means to electrically energize the' field member and rapidly oscillate the armature member relative thereto to vibrate the table,

2. In a paper jogger the combination of a relatively heavy base, a table of relatively less mass, spaced spring members for resiliently supporting the table on said base for vibration relative thereto in a vertical rectilinear path, a vibratory motor having an aramature member and an electromagnetic field member, means for securing the armature member directly to the underside of the table substantially centered between the spaced supporting members, means to independently secure the field member on the base to hold said members in operative spaced relation and to provide a magnetic coupling therebetween, and means to electrically energize the field member and rapidly oscillate the armatable.

3. In a paper jogger the combination of a base, a table, spaced spring members for resiliently supporting the table on said base for vibration relative thereto in a verticalrectilinear path, a single vibratory motor having an armature member and an electromagnetic field member, means for securing the armature member directly to the underside of the table substan-. tially centered between the spaced supporting members, means to independently secure the field member on the base to hold said members in operative spaced relation and to provide a magnetic coupling therebetween, means for energizing the field member with intermittent current pulsations obtained by rectifying alternating current to rapidly oscillate the armature member relative to the field member without physical contact with one another to silently vibrate the table, and means to regulate the amplitude of vibration of the table while the operation of the motor subsists.

4. In a paper jogger the combination of a base, a table, spaced rubber members for resiliently supporting the table on said base for vibration relative thereto in a vertical rectilinear path, a vibratory motor having an armature member and an electromagnetic field member, means for securing the armature member directly to the underside of the table substantially centered between the spaced rubber members, means to independently secure the field member on the base to hold said members in operative spaced relation and to provide a magnetic coupling therebetween, means to electrically energize the field member and rapidly oscillate the armature member relative thereto Without physical contact between the members to silently vibrate the table, and means to regulate the amplitude of vibration of the table to adapt it to the characer of paper being jogged.

5.1n a paper jogger the combination of a base, a table to support the paper to be jogged, spaced spring means to resiliently support the table on the base for vibration relative thereto in a vertical rectilinear path, a single vibratory motor having an armature member and an electromagnetic field member, means to secure the armature member directly to the underside of the table substantially centered between the spaced supporting means, means to independently secure the field member on the base to support said members in operative spaced relation and provide a magnetic coupling therebetween, and means to rectify alternating current and electrically energize the field member and rapidly oscillate the armature member secured to the table to vibrate the latter relative to the base.

6. The structure of claim 5 characterized in that said armature is straight and the electromagnetic field member is provided with a plurality of spaced poles.

7. In a paper jogger the combination of a base in the form of a vertical walled enclosure, support means carried by the base within the walls and spaced from the top of the latter, a table covering the walled enclosure, spaced rubber members resiliently supporting the table for vibration in a vertical rectilinear path on said support means to bring the table into relative close relation to the top of the walled enclosure, an armature mounted directly on the underside of the table substantially centered between the spaced rubber members, an electromagnetic field member supported within the base in operative spaced relation to the armature to provide a magnetic coupling therebetween, and means to electrically energize the field member to rapidly oscillate the armature secured to the table to vibrate the latter.

8. The structure of claim 7 characterized in that said last mentioned means includes an electrical rectifying device, and means to resiliently support said device within the base.

9. The structure of claim 7 characterized in that said last mentioned means includes an electrical rectifying device, means to resiliently support said device within the base, and means to regulate the amplitude of vibration of the table to adapt it to the character of paper being jogged.

CARL S. WE-YANDT.

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

UNITED STATES PATENTS Number Name Date 2,180,189 Alvord Nov. 14, 1939 2,257,688 Jones Sept. 30, 1941 2,398,777 Burke Apr. 23, 1946

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