US1613953A

US1613953A - Electric razor

Info

Publication number: US1613953A
Application number: US22806A
Authority: US
Inventors: Sidney P Jones
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-04-13
Filing date: 1925-04-13
Publication date: 1927-01-11
Anticipated expiration: 1944-01-11

Description

Jan. s. P. JONES ELECTRIC RAZOR Filed April l5. 1925 2 Sheets-sheet 1 Jan. 11 1927. I 1,613,953

I s. P. JONES ELECTRI C RA ZOR Filed April l5, 1925 2 Sheets-Shee 2 Patented Jan. 11, 1927.

U'NrrED STA SIDNEY P. J ONES, 0F WAGO, TEXAS.

ELECTRIC RAZOR.` L

'Application sled April 13,

This invention relates to new and useful improvements in electric razors.

The object ot the invention is to provide a razor of the vibratorytype possessing certain highly advantageous and improved features, making for a more satisfactory andeficient device. Y

A particular object of the invention is to provide means for minutely regulating the amplitude of the reciprocation of the blade.

An important object of the invention is to provide a simpleand practical means of fastening the blade to the carrier posts; whereby it may be quickly and easily placed or removed-and whereby it will be lirmly and properly held in working relation to the guard'teeth.

Another object of the invention is to provide a simple forni of solenoid and a novel means of adjustable connection between the core and the pitman, whereby the vibratory -action'may be controlled.

A construction designed to carry out the invention will be'v hereinafter described together with other features ofthe invention.

The invention will be more readily understood from a reading of the following speciication and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein: y

Fig. 1 is a side elevation or" a razor con-"1 structed in accordance with my invention, l

Fig. 2 is a front elevation of the same,

Fig. 3 is an enlarged cross-sectional view taken on the line 3-3 of Fig. 4,

Fig. 4 is an enlarged longitudinal sectional view taken on the line 4-4 of Fig. 2,

Fig. 5 is an end elevation of the razor,

Fig. 6 is an enlarged cross-sectional view on the line 6-6 of Fig. 4,

Fig. 7 is an enlarged cross-sectional view taken on the line 7-7 of Fig. 4,

Fig. 8 is a detail ot the blade latehing post connection.

1n the drawings the numerall() designates an elongated head having a tlat tace 11 provided with a central recess 12. Along the side edges ot the head contiguous to the face guard teeth 13 are provided. Thehead is integral with and olset laterally from a short neck 14 disposed centrally of a cap 15. The oap 15 has a screw threaded flange 16 engaging in the internally screw threaded end of a cylindrical handle 17.

The neck and cap have an axial bore 18. The head is formed on its rear side with By pressing 1925. Serial No. 22,806.

spaced bearing brackets 19. A cylindrical carriage 2O is mounted to slide in thebores of these brackets, which bores are preferably concentric to the bore 18. The carriage has a shoulder 21 below the lower bracket 19 and is secured at this point to a pitman 22 extending through thebore 18. A coiled spring 23 surrounding the pitman is seated in arecess 24 in the neck and hasits upper end en- "gaging around the shoulder.

A keeper post 25 extends through a slot 26 in the head and has its reduced screw threaded end 27 engaged in the carriage 20. A latching post 28 extends through a slot 29 in the head and a slot 30 in the carnage and has its reduced screw'threaded end 31 en-I gaged in a plunger 32 slidable in a counterbore 33 in the end of said carriage. The plunger has a head 34 on its end extending from the carriage; while its inner end compresses a coiled spring 35 confined in the bore 33. a

Each post has an angular collar 36 integral therewith and resting on the bottom of the recess 12. Outwardly of the collar each post has a rounded'head 37 and between the collar and the head, an annular groove 38.

plunger 32, the latter is depressed against the tension of the spring 35 and the post 38 is moved in its slots 29vand 30 toward the post 25. By this arrangement a double edge blade 39 having a central longitudinal slot 40 may be engaged over vthe heads 37 and inwardly'onY the head 34 of the supported on the collars 36. When pressure on the plunger isreleased the post 28 is displaced, whereby the blade is pulled into the groove 38 by the keeper post 25 and is received in the groove 38 of the latching post 28; thus being securely and lirmly held upon the collars. The grooves 38 are ot' course very shallow.

The blade is supported on the tace 11 at each side ot the recess 12 so that its cutting edges overhang the guard 'teeth 13, but may be carried entirely upon the collars 36 and spaced a fraction of an inch from the face. ln order that the vibratory or reciprocative movement of the carriage 20 may be controlled, l'provide a conical sump carriage for'receiving the conical end of a regulating screw 42 (Figs. 3 and 4) mounted in the head. In the sump 41 is mounted a bushing 4V of libre or any other material suitable for the purpose of eliminating noise when the end of the screw contacts there;

41 in the with during the reciprocation of the carriage. By adjusting this screw into and out of the sump the space between the sides of the conical end and the walls of the sumps is varied and the travel of the carrier 20 is either shortened -or lengthened. This is a Very important feature because it assures a uniform travel of the blade and controls the spring action as well as the amplitude of the magnetic action.

In the handle I mount a solenoid 43 havin a central Well 44 in which a core 45 is sli able. The solenoid is confined by a disk 46 of electrical insulating material which receives the collar 16. The solenoid passes snugly screw threaded end of the pitman 22. lock nut 47 mounted on said threaded end binds upon the end of the core and fastens the core against rotation. By this means the core may be adjusted so as to properly function when the solenoid is energized.

The solenoid rests upon an insulating disk 48 supported upon a shoulder 19 atthe reduced lower end of the handle 17. The solenoid has terminal posts 49 (Fig. 2) depending through the disk and entering an attachment plug 50 which is inserted in the lower end of the handle. An electric current cord 51 is connected to the plug for supplying current to the magnet. The handle 17 is preferably'formed of hard rubber or any other non-conductive material.

In using the razor the operator grasps the handle 17 and turns on the electrical current. Thus causes the solenoid 43 to bc energized so that it attracts the core 45 and pulls the same downwardly. The solenoid illustrated is designed to be used with alternating current and therefore when the core has been pulled down it will be momentarily released, due to the pulsations of the current thereby permitting the spring 23, which was compressed on the down stroke, to expand and return the carriage. By this arrangement the stroke of the carriage will be effected in one direction by the solenoid and in the other direction by the spring. As the pulsations are rapid, so will the reciprocatlon of the carriage and blade be.

' The throw of the carriage can be minutely controlled by the screw 42 and in actual practice, not over a of an inch is required, although this is subject to variation. The blade may be quickly released 'and Ireplaced by simply depressing the plunger 32 and lifting the blade or laying it upon the collars 36. rIhe whole device is comparatively light in weight and may be readily cleansed. The slots 26 and 29 are suiiiciently long to prevent contact ywith their ends by the posts and this obviates noise.

What I claim, is:

1. In an electric razor, a handle, a cap at one end of the handle` having a bore through the disk andreceives the' A ciprocating the carrier,

therethrough, a neck extending from the handle and through which the bore is continued,a solenoid in the handle, a core slidable in the solenoid, a pitman attached to the core and extending through the bore of the cap and neck, a head attached at one end to one side of the neck and extending longitudinally therefrom, a carrier mounted to reciprocate in the head, blade posts fastin the carrier and extending through the head for supporting a blade, and a latch connected with one of the posts.

2. In an electric razor, a head, a carrier mounted'to reciprocate in the head, a sole noid for operating the carrier, a resilient mea-ns co-operating with the solenoid in reand means engaged nth the carrier for regulating the travel of the carrier and blade and adjustable to Vary the said travel.

3. In an electric razor, a head, a carrier mounted to reciprocate in the head, a solcnoid for operating the carrier, a resilient means co-operating with the solenoid in reciprocating the carrier, and means carried by the head and engaged by the carrier for regulating the travel of the carrier and blade and adjustable to vary the said travel.

4. In an electric razor, a head, a blade carrier mounted to reciprocate in` the" head,' a blade keeper ypost carried by the carrier, a blade latching post carried by the carrier, means for reciprocating the carrier, and a blade fastened to and carried by said posts remote from the carrier and on the opposite'side of the head.

5. In an electric razor, a head, a blade carrier mounted to reciprocate in the head, a blade Ikeeper post carried by the carrier, a solenoid for actuating the carrier, resiient means co-operating with the solenoid to reciprocate the carrier, and a blade fastened to and carried by said posts remote from the carrier and on the opposite side of the head.

6. In an electric razor, a head, blade carrier mounted to reciprocate in the head, a blade keeper post carried by the carrier and having a blade-rcceiving groove, a blade latching post carried by the carrier and having a blade receiving groove, means for re* ciprocating the carrier. and a blade fastened to and carried by said posts remote from the carrier and on the opposite'side of the head.

7. In an electric razor, a head, a blade carrier mounted to reciprocate in the head7 a keeper post extending through the head and attached to the carrier, a latching post extending through the head and attached to the carrier, and means for reciprocating the carrier,

8. lIn an electric razor, a head, a blade carrier mounted to reciprocate in the head, a keeper post extending through the head and attached to the carrier, a latching post Se j 1 -ics extending throu h the head and attached to the carrier, a p unger mounted in the carrier, `and a spring impelling the plunger and mounted in the carrier, the latch post being movable relatively of the carrier and secured to the plunger.

9. In an electric razor, a head, a blade carrier mounted to reciprocate in the head, a keeper post extending through the head and attached to the carrier, a latching post extendingl through the head andlattached to the carrier, a plunger vmounted in the carriery and engaged by the latching post, and means for reciprocating the carrler.

10. In an electric razor, a head, a blade carrier mounted to reciprocate inthe head` and having a sump, and a screw carried by the head and projecting into the sump, said screw being adjustable to vary the amplitude of the travel of the carrler.

11. In an `electric razor, a head having a -iat face, a blade carrier mounted in the head andhaving means for supporting a blade contiguous to the face of the head, a

handle on which the head is mounted, a' solenoid in the handle, .a connection between the solenoid and the carrier, and a coiled spring compressed when the carrier is moved by the solenoid.

12. In an electric razor, an elongated head having a flat face with teeth along each side thereof, spaced brackets carried by the head, a carrier reciprocating in the brackets, posts carried by the carrier and extending through the head, blade supports on the post at the face of the head, a plunger in the carrier connected with one of the posts, a pitman extending from the carrier, a handle supporting the head, a coiled spring surrounding the pitman between the head and the handle, and a solenoid in the handle having a core connectedto the pitman.

Inv testimony whereof I affix my signature.

SIDNEY P. JONES.