US1833191A - Clipper - Google Patents

Description

CLIPPER Filed Dec.

23, 1929 2 Sheets-Shee- Nov. 24, 1931. wyJ. VAN osDl-:L 1,833,191

CLIPPER Filed Dec. 23, 1929 2 Sheets-Sheet 2 Patented Nov. 24, 1931 UNITED STATES WILLIAM J'. 'VAN OSDEL, OF CHICAGO, ILLLN'OIS GLIPPER Application led December 23, 1929. Serial No. 415,883.

This invention relates to improvements in clippers and more particularly to vibratory clippers and to the form and construction of the various parts thereof, whereby not only the efliciency and operation of the same is improved, but the cost of manufacture will be reduced.

In clippers having a stationary and a reciprocable blade operated by the vibration of one of the parts with respect to the other, the reciprocating blade is usually provided with slots, and lugs are connected with and project from the upper face of the stationary blade and extend into the slots, and in other devices lugs are secured to the lower face of van imperi'orate blade and operate in a groove in the upper face of the stationary blade. In the usual form of lug and fastening means therefor the tightening of the fastening screw tends to warp the blade or otherwise tilt the same with respect to the stationary blade, which is very objectionable and seriousl interferes with the ellicient operation o the clipper'. f

= It is one of theobj'ects of the present invention to overcome these difficulties and obj ections and to provide an improved construction of bladehaving slots in which lugs are fitted, the lugs depending -from the lower face of the reciprocableblade and opening in a groovein the stationary blade.

A further object is toprovide an improved construction of lug which will itself yield under the stress of the adjusting screw to overcome any tendency to warp or tilt the cutter blade and which will operate to cause the blades to be always maintained iat against each other throughout the length of the blades.

It isparticularly important in a clipper of this character, and when the coil of the magnet is mounted upon the vibratory member and when such member passes through the coil, to maintain the opening in the coil of auniform size which is not always the yof the tape and superposed layers of tape within the opening will be avoided.

A further object is to provide an improved form of tension creating screw or member and an improved form of and method of mounting a friction surface upon the vibratory member with which the tension creating means or screw co-operates.

A further object is to provide in a device of this character an improved closed magnetic circuit formed of laminated members whereby overheating will be obviated and the temperature of the coil will be maintained at a comparatively low degree.

A further object is to provide an improved form of vibrator attachment provided with means for preventing lateral or side vibrations oiE the same.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawings illustrating this invention and'in which Figure 1 is a top plan view of a clipper of this character constructed in accordance with the principles of this invention.

Figure 2 is a longitudinal sectional View taken on line 2 2, Figure 1.

Figure 3 is a. detail sectional view taken on line 3 3, Figure 1.

Figure i is a perspective view of one of the lugs or members for connecting the reciprocating cutter'with the stationary cutter.

Figure 5 is a detail sectional view taken on line 5 5, Figure 2 and with parts omitted.

Figure 6 is a detaily sectional view taken on line 6 6, Figure 5, with parts omitted.

Figure 7 is a top plan view of a cutter of this character constructed in accordance with the principles of this invention with parts omitted and with parts broken away and partly in section, of a vibrator or massage attachment. l

Figure 8 is a detail sectional view taken on line 8 8, Figure 7.

Figure 9 is a detail perspective view of the mounting member for the massage member.

Figure 10 is an end elevation of Figure l1.

Figure 1l is a side elevation of Figure 10, showing the manner of wrapping the magnetic coil.

Figure 12 is a. detail sectional view taken on line 12 12, Figure 10.

Referring more particularly to the drawings the numeral 15 designates a casing of any desired size and configuration within which the operating mechanism is located. Within the casing is a stationary armature 16 which is secured to the bottom of the casing with its back substantially parallel with the side of the casing. A non-magnetic arm 17 is also arranged within the casing and is mounted in any suitable manner by one end as at 18 to a fixed support 19 and may be moved about the fastening means as a pivot, when desired, and when the fastening means is loosened. The arm may be of any desired length and is preferably constructed of material having inherent resiliency. The arm is preferably secured by one end adjacent the rear of the casing 15 and the forward end of the arm projects beyond the front of the casmg.

Supported by the arm is a magnet of any desired construction, but preferably comprising a laminated core 20 which is encompassed by a coil 21. The coil 21 is formed of the usual windings and is shaped to form an opening 22 therethrough which is of a size and configuration to receive the core 20 and a portion of the arm`17 which latter passes therethrough, the coil and the arm filling the opening 22. The coil is wrapped by means of the usual tape 23 and the tape is so arranged that only the edges 24 thereof will lap within the opening 22. In order to produce this result portions of the coil 21 are exposed as shown more clearly in Figures 10 and 11.

By so wrapping or taping the coil it will be manifest that it is possible to produce a number of coils or magnets with the opening 22 therethrough of a uniform size, which would not be the case if the coil is wrapped or taped in the manner now employed. That is to say, as the coils are now wrapped the entire coil is covered and this results in superposing or Wrappinga number of layers of the tape within the 'opening 22, thereby causing such -openingto varyin size and render it difficult to insert or pass the arm 17 and the core 20 therethrough.

Portions of the core 20 are disposed on opposite sides of the arm 17 and one of the extremities 25 of a portion of the laminations 2O on one side of the arm may be deflected laterally and the deflections are of a length that when the arm is in its normal position, the extremities 25 of the portion 2O will be spaced from a shoulder 26. The other extremity 27 of the core 2O will also be normally spaced from tht adjacent portion of the armature 16. The portion of the core on which the deflected portion 25 is arranged is formed with north and south poles, while the portion of the core on the other side of the arm constitutes a portion of a closed magnetic circuit', to be hereinafter described.

The terminals 28 of the windings of the magnet pass through a suitable aperture 29 in the end of the casing 15 and are connected to any suitable source of electric current.

The forward end of the arm 17 is shaped to form a shoulder 30 and secured to said end and depending below the shoulder 30 of the arm 17 are members 31 which are adapted to enter an opening 32 in the reciprocating cutter plate 33 so that upon reciprocation of the arm 17 the plate 33 will be reciprocated upon the stationary blade 34 of the clipper.

The cutter plate 33 is provided with openings 35 therethrough which are angular in cross section, and tomaintain the plate 33 against arcuate movement during its reciprocation upon the plate 31, lugs or projections 36 are provided. Each of these. lugs 36 is provided with kerfs or slots 37 extending transversely thereacross intermediate the top and bottom of the lug` and a portion of the lug above the kerfs or slots 37 is reduced to fit within and substantially fill the opening The lower portion 38 of the lug eX- tends beyond the ends of the slot 35 and projects beneath the lower face of the reciprocatory cutter blade 33. The lower face of the lug 36 is provided with grooves or cut away portions 39 extending transversely of the lug intermediate the ends thereofl and also transversely of the kerfs 37. The lower portion 38 of each of the lugs is adapted to enter and reciprocate within a groove 40 opening through the upper face of the lower cutter plate 34.

A fastening screw 41 having a head of a diameter to extend across the slot 35 to engage the upper face of the cutter plate 33 is provided for each of the lugs, and the shank of the screw passes into a threaded opening 42 in the lug for securing the lugs to the upper cutter plate.

It will be manifest that With this construction (reference being had particularly to Figure 3) when the screw 41 is tightened the tendency of the screw is to draw the buttom portion 38 against the lower face of the upper cutter plate 33 by reason of the fact that the head 41 contacts with the upper face of the plate 33. By the provision of the kei-fs 37 and grooves 39 it will be manifest that when the screw 41 is tightened and inasmuch as the lower portion 38 of the lug 36 engages the lower face of the cutter plate 33 the kerf 3'7 and the grooves 39 will permit the body portion of the lug 36 to yield and thereby obviate or prevent warping, springing or tilting of the cutter plate 33 with respect to the stationary cutter plate 34, thereby maintaining the adjacent faces of the cutter plates flat against each other throughout the length of the cutter plates.

Secured to the top of the cutter plate 35S is a spring 43 which is provided with a shouldered portion 44 adapt-ed to pass under the shoulder 30 formed at the end of the arm 17.

' This spring is preferably secured to the plate 33 at one end by means of one of the screws 41 passing therethrough, while the other end of the spring 43 is free and may be moved about the screw 35 as a pivot when the latter is loosened, but when the same is tightened the spring 43 will be maintained in the position shown vin Figure 1. The spring serves as a means for regulating or positioning the arm 17. By loosening the fastening device 18 and then depressing the forward end of the arm 17 until the shoulder 30 contacts with the portion 44-of the spring 43 the arm will be properly positioned after which the fastening device 18 may again be tightened to hold the arm in its adjusted or set position.

After the arm 17 has thus been set, all that is necessary to adapt the top or reciprocating cutter plate 33 for removal, is to swing the spring 43 about its pivot formed by one of the screws 41, as shown in dotted lines in Figure 1, andthe plate can then be lifted out, usingy the spring 43 as a handle if desired. lVhen the plate 33 is replzmed, the spring 43 may then bev swung back-into position under the shoulder 30 and the plate 33 will then be locked in position.

When the device is not in operation the spring arm 17 will hold the armature in a central position. vand as an alternating current passes through the coil of the magnet, the armature and consequently the arm will be first attracted b v the magnet while the current is flowing in one direction and will place a stress upon the arm. lVhen. however, the current reverses. the coil will be (le-energized and the armature will be released and will then, under the influence of the stress of the armature 17 move away from the magnet. The result of such action is to produce a ribratory movement to the arm and armature.

fered as at 48. The bifurcated portion 47 is adapted to receive the upper edge of the arm 17, and portions 49 of the upper edge of the arm are swedged over the beveled surface 48 of the member 45 for securing the member to the top of the arm 17.

Threaded through the top or cover 50 of the clipper is a screw 51 provided with a head 52. The screw is hollow, and mounted therein is a plunger 53 having a reduced eX- tremity 54 which projects beyond the end of the screw. The plunger 53 is held in position preferably by langing a portion 55 of the bottom of the screw over an inclined or beveled surface 56 on the plunger. A spring 57 is arranged within the screw and tends normally to project the reduced eX- tremity 54 of the plunger beyond the end of the screw. This screw 51 is arranged so that the extremity 54 of the plunger 53 will be disposed directly above the surface 46 of the member 45 on the arm 17.

By adjusting the screw 51 the extremity o the plunger may be raised out of engagement with the surface of the member 45 and by adjusting the sc-rew in the opposite direction the extremity of the portion 54 will be moved into contact with the surface 46 of the member 45 and the stress lthereof against such surface may be regulated by adjustingthe stress of the spring 57 by means of the adjustment of the screw 51 in the top 50 of the clipper.

In order to prevent overheating of the magnet a shield member 58 may be provided and this shield member is constructed of soft iron, preferably of the same materiall as the mag-l net core, and consists of laminations of substantially U shaped configuration secured by one end as at 59 to the core 2() and contacting at its other end as at 60, alsoI witha portion of the core 20. This shield 58 extends about the coil 21 on the side opposit-e to the side on which the armature 16 and poles are located and forms a closed magnetic circuit of part i to pass through an opening 63 in the case of the clipper and to be threaded into a socket 6l carried by the arm 17. When the attachment 6l is connected with the clipper the vibrations of the arm 17 maybe controlled by the adjustment of the screw 51.

In order to secure the stem 62 to the member 61 and to prevent lateral vibratory movement of the member with respect to the stem 62, the end of the stem 62 is preferably hollow and conical as at 65 and is provided with openings 66 in the wall thereof so that when the vibrator member 61 is molded about the conical portion 65, portions of the body of the member 6l will enter the openings 66 and thereby anchor and secure the stem and member together.

By connecting the vibrator member or attachment 61 with the arm 17 upon which the magnet is mounted, a more steady operating movement will be produced by reason of the arm 17 being weighted, than it would be possible to produce if the vibrator attachment should be connected with or mounted upon a vibrating armature.

While the preferred form of the invention has been herein shown and described, it is to he understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts, within the scope of the claims, witho ut departing from the spirit of this invenv t1on.

What is claimed as new is 1. In a clipper a stationary blade, a movable blade having an opening therethrough, a lug fitting in said opening and projecting beyond the face thereof to reciprocate in a groove in the bottom blade, a portion of the lug extending beneath the lower face of the upper blade, a weakened portion in the body of the lug, a screw passing into the lug from the top of the top plate, and a shoulder on the lug to engage-the top plate, the said weakened portion of the lug operating to permit the body portion of the lug to yield under the stress of said screw.

2. In a clipper a stationary blade, a movable blade having an opening therethrough, a lug fitting in said opening and projecting beyond the face thereof to reciprocate in a groove in the bottom blade, a portion of the lug extending beneath the lower face of the upper blade, a plurality of weakened portions in the body of the lug, a screw passing into the lug from the top of the top plate, and a shoulder on the lug to engage the top plate, the said weakened portions of the lug operating to permit the body portion of the lug to yield under the stress of said screw.

3. In a clipper, a stationary blade having a groove extending across the face thereof, a reciprocable cutter having an opening therethrough, a lug fitting in said opening and extending beneath the reciprocable cutter, said lug fitting within and reciprocable in said groove, there being a slot opening through the periphery of the lug intermediate and spaced from the upper and lower faces of the lug, a screw threaded into the lug through the reciprocable cutter, and a shoulder on the lug to contact with the top reciprocable cutter, said slot serving to permit the body of the lug to yield under the stress of said screw.

4. In a clipper, a stationary blade havin a groove extending across the face thereo a reciprocable cutter having an opening therethrough, a lug fitting i'n said opening and extending beneath the reciprocable cutter, said lug fitting lwithin and reciprocable in said groove, there being al slot opening through the periphery of the lug intermediate and spaced from the upper and lower faces of the lug, there being a groove opening through the bottom face of the lug and extending thereacross, a screw threaded into the lug through the reciprocable cutter, and a shoulder on the lug to contact with the reciprocable cutter, said slot and said groove serving to permit the body of the lug to yield under the stress of said screw.

5. For use in a clipper having a stationary and a vibrating cutter blade, a lug for guiding the vibrating blade and maintaining the same in proper position with respect to the stationary blade, said lug having a reduced upper portion, there being kerfs in the body of the lug opening through the sides and ends thereof at the base of said reduced portion, and a threaded opening accessible through the top of the lug.

6. For use in a clipper having a stationary and a vibrating cutter blade, a lug for guiding the vibrating blade and maintaining the same in proper position with respect to the stationary blade, said lug having a reduced upper` portion, there being kerfs in the body of the lug opening through the sides and ends thereof at the base of said reduced portion, there being grooves opening through the bottom face of the lug and extending thereacross, and a threaded openin accessible through the top of the lug.

7. In a clipper, a stationary cutter blade having a groove thereacross, a reciprocable blade having an opening therethrough in alinement with said groove, a lug fitting in the opening in the reciprocable blade and projecting into and reciprocable in said groove, a screw, a shoulder on the screw, said screw threaded into the lug and said shoulder contacting with the upper surface of the reciprocable blade, and means whereby the body of the lug will yield under the stress of said screw and with respect to the reciprocable blade.

8. In a clipper, a cutter blade, a vibratory member for reciprocating the blade, a bifurcated element, one edge of the vibratory member seated in said bifurcation, a portion of said member being swedged over the said element for securing the element and member together, a friction surface on said element, and an adjustable friction creating ele- :Ifnent co-operating with the said friction surace.

9. In a clipper, a cutter blade, a vibratory member for reciprocating the blade, a bifurcated element, one edge of theyibratoryA mem- 1o ber seated insaid bifurcation, a portion of said member being swedged over the said element'for securing the element and member together,\,`a friction surface on said element, a resiliently yielding element co-operating with said friction surface and means for varyin at will the stress of the last said element wit respect to said surface.

10. In a clipper, a vibratory member, a friction surface on said member, an adjustan able element having a recess opening through the end thereof, a plunger in said element a portion of the plunger being reduced and projecting beyond the end thereof to form a shoulder, the extremity of the reduced por- -ss tion engaging said surface, a. portion of said element being contracted about the reduced portion of the plunger and beneath said shoulder for maintaining said plunger against displacement with respect to said element, and a spring in said recess for maintaining said plunger projected beyond the end of said member. 11. In a clipper, a vibratory member, a

friction surface on said member, an adjustsa able element having a recess opening through the end thereof, a plunger in said element, a portion of the plunger being reduced and projecting' beyond the end thereof to form a shoulder, the extremity of the reduced por- 40 tion engaging said surface, a portion of said element beingl contracted about the reduced portion of t e plunger and beneath said shoulder for maintaining said plunger against displacement with'respect to said element, a 4l s rmg in said recess for maintainin .said p ungr projected beyond the end o said mem r, and a laterally opening socket connected with said vibratory member for the reception of a separate implement.

12. In a clipper, a vibratory member, a friction surface on said member, an adjustable element having a recess therein entirely closed at one end and opening through the other end thereof, a plunger in' said element adapted to project from said recess and beyond the end of the said element to engage said surface, a portion of the said element adjacent the extremity thereof being contracted about the plunger to maintain the same against dislacement with respect toy said element, and a spring in said recess for maintaining said plunger projected beyond the end of said member.

13. In a clipper, a stationary cutter blade 35 having a groove thereacross, a reciprocable and with relation to the reciprocable blade.

In testimony whereof I have signed my name to this specification, on this 9th day of December, A. 1929.

` WILLIAM' J. VAN OSDEL.

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