US1695516A - Clipper - Google Patents

Description

Dec. 18, 1928. 1,695,516

. w. J. VAN OSDEL CLIPPER Filed Dec. 27, 1926 3 Sheets-Shes l Dec. 18, 1928. 1 1,695,516

W. J. VAN OSDEL CLIPPER Filed Dec. 27, 1926 3 Sheets-Sheet 3 Patented Dec. 18, 1928.

rA'rr-m'r OFFICE;

WILLIAM J. VAN OSDEL, OF CHICAGO, ILLINOIS.

CLIPPER.

' Application filed December 27, 1926. Serial No. 157,069.

This invention relates to improvements in clippers, particularly adapted though not necessarilylimited in its use, in barber shops, and one of the objects of the invention is to provide an improved device of this charac ter intended to be operated by an electromagnet.

Heretofore in devices of this character long heavy armatures have been employed, with the result that the armature 'willchange its stroke when the device is changed from a vertical to a horizontal position and vice versa, with the further result that the operation of the. device becomes noisy and will vibrate to a too great extent.

To overcome these objections and difficulties and to provide an improved device of this character in which there is employed a flex ibly mounted armature which will be comparatively short and stiff and unyielding transversely of its stroke, and which will not change its vibration when changed from one position to any other position, is another object of the present invention.

A further object is to provide improved means whereby the cutter plate will be driven directly by the armature without extra parts tomount on the armature end, thereby obviating the loading of the armature end which will prevent excessive vibration in the casing.

A further object is to provide an improved adjustable spring tension on the movable cutter plate whereby both cutter plates will be held together by a very light spring tension while at the same time the cutter plates will be prevented, by means of a strong spring tension, from separating.

A further object is to provide improved means for dissipating heat generated within the device and for causing the heated air to circulate out of the casing.

A further object is to provide an improved armature embodying means whereby a portion of the same may be'readily adjusted or deflected during the assembling of the device,to compensate variations in the manufacture of the parts with which the armature co-operates.

A further object is to provide improved means for controlling or regulating the ex-,

tent of vibration of the armature. To the attainment of these ends and the accomplishment of other new and usefulobthe supporting and adjusting screw for one 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 device of this character constructed in accordance with the principles of this invention.

Figure 2 is a side elevation of Figure 1.

. Figure 3 is a bottom plan view of the cover of the casing.

Figure 4 is a top plan view of the device with the cover removed.

Figure 5 is a longitudinal sectional View of the device with the cover thereon, and as taken on line 55, Figure 4.

Figure 6 is a detail view taken on line 66, Figure 5.

Figure 7 is a detail vertical sectional view taken on line 77, Figure 5.

Figure 8 is a sectional view of the entire device as taken on line 8-8, Figure 4, and with parts omitted;

Figure 9 is a detail vertical sectional view taken on line 9-9, Figure 8.

Figure 10 isa detail perspective view of one end of the armature.

Figure 11 is an enlarged detail sectional view taken on line 11-11, Figure 8.

Figure 12 is a detail perspective view of the spring interposed between the end of the armature and the movable cutter plate.

Figure 13 is a detail perspective view of in elevation as end of the-spring.

Figure 14 is a detail perspective view of one end of the pole piece of the armature.

Referring more particularly to the drawings the numeral 20 designates generally an open casing of any'desired size and configuration, the forward end of which is provided with an upwardly inclined face 21. This face is Iprovided with threaded openings 22 around w ich openings are provided upstanding flanges 23 (see Figure 6) and extendedportions 24.

The extended portions 24 form spacing means for spacing a stationary cutter 25 from the face 21 and for holding the cutter in an inclined position with respect to the body of thecasing when fastening devices 26, such as screws or the like, are passed through the cutter to engage in the threaded openings 22. By providing the upstanding flanges 23 an extended hearing will be formed encircling the entire opening 22 so as to insure the proper positioning of the screws 26, when the latter are placed in position to prevent stripping of the threads.

This stationary cutter 25 is provided with the usual teeth 27.

Reciprocating upon the cutter member 25 is a cutter blade or member 28 which is guided in its reciprocation by means of a projection 29 preferably in the form of a screw which passes thercthrough and enters a guideway 30 in the upper face of the stationary cutter 25. This screw is provided with a head 31 which is reduced as at 32 to form shoul ders 33.

Secured to the upper face of the cutter plate 28 and by one end thereof by means of a fastening device 3st, such as a screw, rivet or the like, is a leaf spring designated generally by the reference numeral 35. The body portion of the spring is shaped to form an upwardly opening seat 36 having slots 37 in the walls thereof and the bottom 38 of the seat is spaced above the adjacent face of the plate 28 and is rounded for a purpose to be set forth. The end 39 of the spring adjacent the point where it is anchored to the plate 28 by the fastening device 34, is reduced in width and is considerably smaller in width than the other extremity i0 of the spring.

The end 40 of the spring is bifurcated as at tl to receive the reduced portion 32 of the element 29 and the walls of the spring forming the bifurcation rest upon the shoulders 33 of the element 29.

If it is desired to increase the stress of the end d0 of the spring upon the plate 28, the end 40 of the spring is elevated a suflicient distance to disengage the reduced portion 32 of the element 29 so as to permit the latter to be rotated and thereby raise the shoulders 33 to increase the tension of the adjacent end of the spring.

Likewise when it is desired to decrease the stress of the spring d0 upon the plate 28 and in the event that the shoulders 33 are elevated the same operation may be performed to permit the element 29 to be lowered.

This construction is advantageous in that it not only provides a means whereby the spring tension may be varied, but both cutter plates will be held together by a very light spring tension, and at the same time the cutter will be prevented from separating by means of a very strong spring tension.

This is accomplished by reason of the fact that the spring is mounted in a permanent manner at one end ,upon the reciprocable cutter plate, the anchor end being reduced or weakened adjacent the rivet. The other end of the'spring is elevated with respect to the reciprocating plate for a predetermined distance from the surface thereof.

It will therefore be manifest that the end of the armature will press the spring through its weak end into engagement with the shoulder on the adjustable screw device 29. Therefore there will be a light tension on the cutter plates normally by reason of the fact that the weak end only of the spring presses these plates together. This lessens the tendency of the cutter plates to heat in operation and also allows them to start oscillating which they would not do if the spring tension is sutii' cient to cut heavy hair. lVith the present arrangement and if the tendency of the hair is to separate the cutter plates, both the weak end and the strong end of the spring will operate upon the reciprocating cutter plate and resist such separating action.

Mounted within the base 20 is an electro magnet 42, the core 43 of which is preferably provided with a slot 4% in one end through which a screw e5 passes, and by means of which screw and slot the elcctromagnct is adapted to be adjusted laterally within the casing.

The core 43 forming the pole piece is shaped to extend about a portion of the coil as at it) to form a stop or abutment i7.

The core 43 is preferably of a laminated construction, the laminations being secured together by means of a suitable fastening devic-eetS, preferably in the form of a rivet.

As shown more clearly in Figures 9 and 14, certain of the laminations of the core terminate short of the end at of the core and a piece of flexible material L9, such as leather or the like is secured across the end 47 by inserting the ends of the leather between the top and bottom plate of the core.

This end of the core is secured in the easing 20 by means of a screw or bolt 50 which enters a lug or projection 51 on the bottom of the case 20, the bottom of the core or pole piece being provided with a recess into which the projection 51 extends, and this brojection forms an extended bearing for the end of the screw.

An armature 52 is supported by one end within the casing through the medium of a short. wide and comparatively thin spring 53, which latter is secured to a supporting lug 5% by means of a screw 55. The end of the armature 52 is secured to the spring 53 in close proximity to the supporting lug 54 and the armature 55 is shaped to extend about the coil 42.

The end of the armature which is secured to the spring 53 is preferably of a width equal to the width of the spring, and the armature tapers toward the free end 56 (see particularly Figures 8 and 9) so as to lighten the armature. The free end 56 of the armature extends forwardly and is shaped to form a gooseneck 57 which is in direct alinement with the end which is secured to the supporting lug 5 t.

Formed on the forward end of the gooseneck 57 is a head 58 which is rounded upon its bottom as at 59 and the sides thereof converge upwardly from the bottom 59. Thishead 58 is adapted to be seated in the recess 36 of the spring 35 and the rounded bottom 59 engages and rests in the rounded seat 38 of the spring, the tapering or converging. sides 60 of the head 58, together with the shape of the seat 36 in the spring 35 permit of the relative rocking movement of these parts. 1

A pin 61 extends through the end of the armature adjacent the head 58 and is seated in the slots 37 in the walls of the seat 36.

It will therefore be manifest that as the armature is vibrated, the cutter plate 28 will be reciprocated upon the cutter plate 25.

It will also be manifest that with this construction the reciprocating cutter plate will be driven directly by the armature without the necessity of extra parts mounted on the armature end, thereby obviating the necessity of loading or causing the end of the armature to become heavy. In a construction of this character and in an armature which is heavy at the end an excessive vibration will result, which will be manifest in the casing. The end of the armature forming the gooseneck 57 is comparatively rigid yet pliable,

thereby adaptingthe gooseneck to be adjusted or bent with respect to the adjacent portion of the armature, during the manufacturing or assembling of the structure to compensate variations in the manufacture or construction of the co-operating parts, while at the same time the end of the armature will not yield or spring during the operation of the device.

By mounting the armature upon the spring 53 in the manner as herein shown, the cutter plate 28 will reciprocate in an approximately straight line with respect to the front end of the stationary cutter plate 25, by reason of the fact that the spring 53 is mounted upon the lug 54 in the exact center of the casing and the front end of the armature also lies in this straight line. Y

The armature 56 vibrates freely and is limited in its stroke only by striking the pole piece of the magnet coil and is'unyielding transversely of its stroke. When the armature is attracted by thecoil the forward end of the armature will strike the leather facing 49 on the core or pole piece 43, and being unyielding the armature will rebound quickly without producing a metallic sound when it strikes the pole piece. a

It is sometimes desirable to vary or change the stroke of the armature and thereby con trol the'degree of reciprocation of the cutter plate 28 with respect to the cutter plate 25. and this may be accomplished by means of a screw device 62 which is threaded through a cover 63 provided for the casing. The end of the screw is adapted to engage a yielding with respect thereto so that adjustment of the screw 62 into engagement with the surface 64 will obviate any tendency to spring the armature transversely.

By adjusting the'screw 63 so as to have a light pressure upon the surface 64 an increased frictionalpressure between the end of the screw and the surface will be produced and the greater the friction the shorter will be the stroke of the armature by reason of the fact that its movement will be retarded by this increased friction. A

By relieving the pressure upon this surface a longer stroke of the armature will be produced as there will be less friction for the armature to overcome.

As a means for holding the screw 62 in its adjusted position a spring. washer 65 may be provided which is supported in any suitable manner by the lower surface of the cover or cap member 63 of-the casing.

In order to provide a closure for the casing adjacent the ends of the stationary cutter blade 25 the cover 63 is provided with proacter that considerable heat will be generated within the casing and in order to permit the heated air to escape from the casing the cover or closure 63 is provided with ventilating opening 66 which may be covered by reticulated material 67 secured thereacr'oss and supported by the lower face of the cover 63.

As a means for assisting in creating a circulation of the heated air within the casing and for causing the same to flow through the ventilating opening 66 a disc 68 may be secured to the armature 52 and this disc is preferably of a size and configuration to correspond with the adjacent end of the coil 42.

As the armature is vibrated this disc will serve as a fan and thereby assist in forcing the heated air out of the casing.

The device is connected to any suitable source of supply by means of suitable conductors and arranged in one of the conductors isxa switch device for controlling the operation thereof. Thisswitch device preferably embodies spaced spring contact members 6970. One of the windings 71 of the coil is connected with the contact member 70, and the contact member 69 is arranged in a conductor 72. V

The free end of the contact member is shaped. to form a shoulder 73 and the extremity of said end is deflected toward the other contact member 69. The shoulder 73 is adapted to be engaged by a member 74 mounted for sliding movement upon the wall of the case 20. This member 74 is provided with a finger engaging portion 75 that extends through a slot T6 in the casing wall in a position to be engaged by the finger of the operator for sliding the member in the slot.

he contact member 70 also serves as a means for holding the member 74 against displacement.

lVhen the member 74 is moved to the right in Figure 4:, so as to engage the shoulder 73 of the contact 70, the end of the contact 7 0 will be moved into engagement with the contact G9 to complete the circuit through the coil.

Likewise when the member '74 is moved out of engagement with the shoulder 7 3 or into the position shown in Figure 4, the contact member 70 will move out of engagement with the contact member 69 and the circuit will be broken to de-energize the coil 42. The end of the contact member 73 may also be moved into engagement with the contact member 69 by pressing upon the member 74 without sliding the latter in the slot.

lVhile the preferred form of the invention has been herein shown and described, it is to be 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, without departing from the spirit of this invention.

lVhat is claimed as new is 2-- 1. A device of the character described including a support, a reeiprocable blade mounted on said support, means for reciprocating said blade comprising an electromagnct and an armature adapted to be vibrated thereby, a portion of the armature being non-resilient but pliable. a head connected with said portion, the bottom of said head being rounded and means for connecting said head directly with the said reciprocable blade.

2. A device of the character described including a support, a reciprocable blade mounted on said support, means for reciprocating said blade comprising an electromagnet and an armature adapted to be vibrated thereby, the end of the armature adjacent said blade being shaped to form a non-resilient but pliable oose neck, a head connected with said portion and project ng laterally therefrom, the bottom of the head being rounded and the sides thereof converging upwardly, and a, resilient element carried by the said blade and engaged by the said head.

' A device of the character described including a support, a reciprocable blade mounted on said support, means for reciprocating said blade con'iprising an electro-magnet and an armature adapted to be vibrated thereby, the end of the armature adjacent said blade being shaped to form a non-resilient but pliable goose neck. a head carried by and projecting laterally from the end of said goose neck, the bottom of the head being rounded and the sides thei'eo'l converging upwardly, a resilient element carried by the said blade and engaged by the said head. and a loose connection between the said head and the said resilient element. whereby a rocking movement of the said blade to which said resilient element is connected will be permitted.

4:. A device of the character described including a support, a reciprocable blade mounted on said support. means for reciprocating the blade comprising an elcctro-magnet and an armature adapted to be vibrated thereby, said armature being reduced at its tree end to lighten the same, means carried by said blade and forming a direct connection between the free end of the armature and the said blade, and means disposed adjacent the free end-of the armature for controlling the vibration thereof.

5. A device of the character described in cluding a support, a reciprocable blade mounted on said support, means for reciprocating the blade comprising an electro-magnet. and an armature adapted to be vibrated thereby, said armature being reduced at its free end to lighten the same. means carried by said blade and forming a direct connection between the free end of the armature and the said blade, and means disposed adjacent the free end of the armature for controlling the vibration thereof, the last recited means embodying a screw device carried by a stationary part of the structure and a resilient member carried by the armature contacting with and reciprocable across the end of the screw.

6. A device of the character described embodying a support, a reciprocable blade mounted upon the support, means for reciprocating the blade including an electro-magnet and an armature adapted to be vibrated thereby, and a resilient element carried by said blade and with which element the end of the armature has engagement, the said resilient element extending in a direction lengthwise of the blade, one end of the spring being weakened.

7. A device of the character described embodying a support, a reciprocable' blade mounted upon the support, means for reciprocatin the blade including an el'ectro-magnet and an armature adapted to be vibrated thereby, and a'resilient element carried by said blade and with which element the end of the armature has engagement, the said resilient element extending lengthwise of the blade, a stationary blade with which the reciprocable blade cooperates, one end of the spring acting upon the reciprocable blade to hold it against the stationary blade, and means rendering the other end of the spring active to resist a separating action of the blades.

8. A device of the character described embodying a support, a reciprocatable blade mounted upon the support, means for reciprocating the blade including an electromagnet and an armature adapted to be vibrated thereby, 'a resilient element secured by one end to the blade, the other end of the said element being free, the end of the armature engaging the said resilient element intermediate the ends of the latter for reciprocating the blade, and means for adjusting the free end of said resilient element towards and away from the said blade to vary the tension of the last said end of the resilient element upon the blade.

9. A device of the character described embodying an electro-magnet, an armature for the magnet, a support, a reciprocable blade mounted upon the support, a spring-secured by one end to the blade, the other end of the spring being free, and means for adjusting the free end of the spring towards or away from the said blade, the end of the said armature being directly connected with said spring intermediate the ends of the latter.

10. A device of the character described embodying an electro-magnet, an armature for the magnet, a support, a reciprocable blade mounted upon the support, a spring sea cured. by one end to the blade, the other end of the spring bein free, means for adjusting the free end of t e spring towards or away from the said blade, a. portion of the spring intermediate its ends being spaced from said blade, said portion of the spring being shaped to form a seat for receiving the end of the armature.

11. A device of the character described embodying an electro-magnet, an armature for the magnet, a support, a reciprocable blade mounted upon the su port, a spring secured byone end to the bla e, the other end of the spring being free, means for adjusting the free end of the spring towards or away from "the said blade, and a pin and slot connection between the end of the armature and the said spring intermediate the ends of the latter.

12. A device of the character described embodying a support, a reciprocable blade mounted upon the support, an electro-magnet,

an armature adapted to be vibrated thereby,

a spring secured by one end to the blade, the other end of the spring being free, an elein a direction ment carried by the blade for adjustment toward and away from the blade and with which element the said free end of the spring has engagement, and means forming a connection between the armature and the said spring intermediate the ends of the latter.

'13. A clipper including a reciprocable blade, means for reciprocating the blade, a spring, the ends of the spring exerting pressure upon the blade at points spaced longitudinally ofthe blade, a portion of the body of the spring intermediate its ends being spaced from the blade, the first said means being connected with that portion of the spring which is spaced from the said cutter, and means for adjusting at will one end of the spring for varying the stress of the last said end with respect to the said blade, while the other end of the spring remains fixed.

145A clipper embodying a. reciprocable blade, an oscillatable member for reciprocating the blade, one end of said member being non-resilient but pliable, and means for connecting the said pliable portion of the said member with the said blade.

15. A clipper embodying a reciprocable blade, an oscillatable member for reciprocating the blade, one end of said member being non-resilient but pliable, and means for resiliently and detachably connecting the said pliable portion of the said member with the said blade.

16. A device of the character described embodying a support, a reciprocable blade mounted upon the support, an electromagnet housed within the support, an armature adapted to, be vibrated by the magnet, means connecting the armature with said blade, and means supported by and vibrating with the armature for inducing a circulation of air through the housing.

17. A device of the character described embodying a. support, a reciprocable blade mounted upon the support, an electromagnet housed within the support, an armature adapted to be vibrated by the magnet, means connecting the armature with said blade, and a fan like device supported by and vibrating with the armature for inducing a circulation of air in the casing.

18. A device of the character described embodying a support, a reciprocable blade mounted upon the support, a magnet coil within the support, an armature adapted tobe vibrated by the magnet said armature operating to reciprocate said blade, and a disc carried by the armature adjacent and substantially equal in size to the end of said 0011 and vibrating with the armature to induce a circulation of air through the housing when the armature is vibrated.

19. A device of the character described in cluding a casing, an electro-magnet in the easing and comprising a coil, a core in said coil, a portion of the core being disposed-on one side of the coil, a vibrating armature having a portion extending on one side of the said coil and in substantial alinement with the said portions of the core and adapted to abut the latter, and a cushioning pad extending across the said portion of the core with which the armature abuts, the ends of said pad extending between the respective laminations of the core. 7

20. A device of the character described embodying a casing, a stationary blade secured to the casing at an angle thereto to form a space between the top of the blade and the adjacent end of the casing and below the top of the casing, a reciprocable cutter cooperating with the stationary cutter, means housed within the casing for reciprocating the cutter, a cover for the casing, and projections on the said cover extending into the said space to form a closure for the ends of sald space, the outer surface of the said pro-- jections being substantially flush with the outer face of the adjacent portion of the casing.

21. A device of the character described including a support, the forward end thereof being shaped to form a flat surface, there being threaded openings extending through said surface, flanges entirely encompassing said openings and projecting beyond said surface, spacing lugs also carried by said surface adjacent said flanges, the outer edges of said flanges and lugs being flush, a stationary blade engagin said flanges and lugs and being disposed stibstantially parallel with said surface, and fastening screws passing through said blade and engaging in said openings.

22 A device of the character described ineluding a casing, a reciprocable element mounted upon the casing, an electro-magnet within the casing, an armature adapted to be vibrated by the magnet for reciprocating said element, a switch for controlling the operation of the magnet, said switch embodying spaced members, one of the members being resilient, a slidable member having a projection extending through a slot in the wall of the casing, and means whereby a move ment of the said slidable member lengthwise of the slot will cause the said resilient contact member to be moved into or out of engagement with the other contact member, the said resilient contact member cooperating with the wall of the casing for maintaining the said slidable member against displacement, the said resilient contact being also movable into engagement with the other contact by a movement of said slidable member in a direction transverse to the length of the slot.

23. A device of the character described including a casing, an electro-magnet within the casing, a switch for controlling the operation of the magnet, said switch including spaced contacts, one of said contacts being resilient, a shoulder formed on said resilient contact, and a member engaging said resilient contact, a projection on the said member extending through a slot in the casing wall to form a finger engaging portion to shift the slidable member, said resilient contact cooperating with the casing wall to hold the slidable member against displacement, said member being movable lengthwise of the slot into and out of engagement with said shoulder and also in a direction transverse to the length of the slot and independent of its sliding movement for controlling the resilient contact.

In testimony whereof I have signed my name to this specification on this 20th day of December, A. D. 1926.

WILLIAM J. VAN OSDEL.

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