US1832001A - Razor operating mechanism - Google Patents

Description

Nov.-17, 1931. w. J. CAMERON 1,832,001

RAZOR OPERATING MECHANISM Filed Jan. 8, 1930 M lL-L MM 4/. 'CAMERON Patented Nov. 17, 1931 i WILLIAM J, elxmnnou,

PATENT OFFICE OF CHICAGO, ILLINOIS RAZOR OPERATING MECHANISM Application filed January 1930. Serial No. 419,275.

My invention relates to an automatic safety razor, and it particularly relates to a razor that is operated by an electric current which causes a vibration of a yieldable armature which is adapted to impact an abutment and the vibration thus created is transmitted through the handle and the holder mounted thereon to the blade. The construction and arrangement of-the parts is designed in order 1 that the post for the razor head and the actuating mechanism are in the form of a unit so as to permit the same to be readily inserted in or removed from the handle. The parts are assembled with the handle in a manner that 35' is moist-proof and waterproof, thereby preventing damage or short 'circuiting from this source.

l have numerous objects in view in devising the 1 herein described structure,- among W which are the provision of an actuating mechanism for razors and like articles-that is compact in construction; is novel" in the formation-and arrangement of the parts; is durable and dependable in operation; and

which will not readily get out of orc er. It is a further object of my invention to reduce the actuating mechanism to the smallest space in order to provide extreme compactness of the operating parts and thus provide a handle of minimum dimensions. Further objects will be apparent to others skilled in the art after myinvention is understood from the following description. 7 7

ll prefer to' carry out my invention and thereby accomplish the objects thereof, in

substantially the manner hereinafter fully described and as more particularly pointed out in-the appended claims. Reference is now being made to the accompanying drawings t that form a part of this specification, in

' which i Figure 1 is a longitudinal view of my improvement showing the handle in longitudinal section.

Figure-.2 is an elevation at a right angle to Figure 1 with the handle or grip omitted. Figure 3' is an enlarged fragmentary view drawn in longitudinal section on line 3-3 of Fig. 1, looking in the direction of the arrows.

. ihe drawings are to be understood as more pr less schematic for the purpose of illustratng a typical or preferred form in which my invention may be made, and in these drawings similar reference characters have been employed to designate like parts wherever they appearthroughout the several views. 1

his will be seen in Figures 1 and 2, the actuatlng mechanism is of a unitary character, the same being mounted upon and extending between two plugs or disksg5 and 6 of thick insulating material, the former or upper plug 5 being exteriorly threaded while the lower plug 6 has a smooth outside surface. The handle or grip comprises an elongated tube 7, w1th its upper portion interiorly threaded to receive the upper plug 5, and its lower end portion has its bore reduced to provide a shoulder or stop 8 against which the lower plug 6 preferably rests. The lower pore tion of the handle has a central aperture 9 v into which the electric terminals of the'unit protrude from plug 6 as will hereinafter more fully appear. "The post 10, with which the tool-holder or head of the razor is detachably' associated, is imbedded in'the outer portion of plug 5, and after the unit has been assembled with the handle or grip in the manner above described a conical-shaped cap 11 is screwed upon the portion of the upper plug 5 that remains outside or above the end of the handle.

The actuating structure which is inclosed or housed within the handle consists of an electromagnet core 12 that forms the body portion of a spool that has retaining end flanges 13 and 14 and around which. an enere gizing winding 15 is placed between said end flanges; A. head or pole 16 is secured to the core in any suitable manner at the upper or outer end of the latter. At the opposite end of the core there is a bracket 17 of substan- I tially L-shape the lateral arm of which is connected to the lower end of the core and its vertical or longer arm extends up alongside the coil to provide a support for a vibratory armature-bar 18 that is connected to said vertical bracket arm by a flat spring 19. The bar is of magnetic material and engages a pole piece or head 20 at the lower end of the coil impacts from a hammer or weight 22 upon the adjacent free end of the armature-bar. A buffer or cushion 23 is carried by the hammer on the face thereof nearest the impact receiving member or anvil 21 so as to absorb some of the shock incidentto the impact of the hammer. As will be seen, the impact member being made in a U-shape, provides the necessary recess to accommodate the hammer 22 between its arms and thus materially reduces the transverse dimensions of the structure.

A spring contact member 24 is mounted upon the vertical arm of the bracket 17 in such manner that it extends up alongside the outer face of the armature bar 18, and this contact member is mounted between pieces of insulating material 25 to insulate its attached portion from the bracket. This spring contact member 24 terminates at about the center of length of the coil where it is provlded '1 with a contact block 26 on its face next the outer surface of the armature-bar 18 and at this location the armature-bar is provided with an aperture 27- of suflicient dimensions to surround the block 26 but to space the adjacent portion of the armature away from the block 26 and prevent contact with the latter.

A readily yieldable spring member 28 is anchored at its upper end upon the inner surface of the armature 18 and is extended down alongside said armature to a point below the upper end of the other spring contact member 24, and it is provided with a contact block 29 that alines with the corresponding block 26 upon the other contact member 24. It will thus be seen that the blocks, at the proper time, contact each other through the aperture 27 in the armature. Each time the armature is attracted towards the coil by the magnetic energy of the latter these blocks 26 and 29 become separated from each other, thus breaking the circuit and allowing the armature to yieldably move away from the coil through the medium of the spring 19.

The details of the spring contact elements, their respective blocks and the armature are shown in longitudinal section in Figure 3, and it will be understood that when the armature has moved in one direction or the other one of the springs 24 or 28 will touch the portion of the bar adjacent the aperture 27 and thus reduce the yieldability of that particular spring contact.-

The bracket 17 and the elcctromagnet coil are secured to the lower plug 6 herembefore mentioned, the adjacent portion of the brackct being fitted into a groove or inlaid or imbedded in the adjacent surface of the plug 6. A pair of terminals 30 and 31 of irregular shape, pass through the plug 6, the terminal 30 being connected by a lead 32 to the energizing winding 15 of the electromagnet, while terminal 31 is connected by a lead 33 to a lug on the contact arm 24. n the upper and lower sides of the plug 6 these terminals are disposed substantially parallel to each other, and their opposite end portions which extend below the plug are positioned in the central aperture 9 of the handle so that they may be readily engaged with the socket contact elements at the end of the electric cord leading from the suitable source of current. The upper head or pole piece 16 has its portion nearest the ad acent portion of the armature provided with a flattened section 34 that is in a plane substantially parallel with the surface of the armature bar to thereby provide a flat magnetic surface to attract said bar. This construction also provides angular shoulders 35, and in order to insure stability, the adjacent corners of the contiguous arm of the impact receiving member are provided with lateral ears 36 that are turned down against the angular shoulders 35 after these parts have been assembled, thus maintaining the respective parts against accidental dislodgment.

What I cla-imis:

1. A reciprocatory motor for a vibratory razor or the like comprising an electromagnet core, an energizing winding thereon, an abutment associated with said electromagnet, an apertured vibratory armature yieldably anchored at one end and actuated by said electromag'net to impact said abutment, a contact arm secured tothe portion of said armature remote to the anchored portion of the latter, a yieldable contact arm secured adjacent the anchored portion of said armature and coacting with the other contact arm through the aperture in said armature. a

pair of terminals electrically connected re spectively to one of said contact arms and to said winding, and plugs at opposite ends of said structure to which the adjacent portions thereof are connected. a

2. .A reciprocatory motor for a vibratory razor or the like comprising an electromagnet core, an energizing winding thereon, an abutment associated with said electromagnet, upper and lower plugs to which said abutment-and the lower, end of said electromagnet are respectively connected, an apertured vibratory armature; yieldably anchored at its lower end to said lower plug and actuated by said electromagnet to impact said abutment with its free upper end, a yieldable contact arm carried by the free upper portion of said armature and extending down alongside the latter, a second yieldable Contact arm extending upwardly from the lower portion of said armature towards the first arm, adjacent portions of said arms coacting with each other through the aperture in said armature, and a pair of ter minals electrically connected respectively to said winding and-to the lower contact arm.. 3. A reciprocatory motorfor a vibratory razor or the like comprising an electromagnet core having an energizing winding, an armature vibrated by said electromagnet and having a transverse aperture, an abutment impacted by said armature, a pair of terminals one of which is connected to said winding, a yielding arm alongside the lower portion of said armature below said aperture and electrically connected to the other terminal, a contact block on said arm positioned in said aperture, a second yielding arm carried by the upper portion of said armature above said aperture and positioned on the side of the armature opposite the first arm, 2 and a contact block on the second yielding arm alined with the first-block through said aperture, the arms and blocks being arranged a in a manner so that the movement of the armature pulls the second arm away from the ,30 first arm and causes a break between the blocks.

, 4. A reciprocating motor for a vibratory razor or the like comprising a hollow handle, an electromagnet therein having an energiz- 36 ing winding, a removable end plug connected to said electromagnet, an abutment within said handle, an armature vibrated by said electromagnet to cause its free end to impact said abutment and having a transverse aper- 40 ture, a contact arm, a yielding contactarm carried by the free portion of said armature and coactin with the first-named contact arm throng said-aperture, said arms extending longitudinally towards each other 46 from opposite directions, a base attached to the lower portion of the structure, terminals carried by the base one of which is connected to said winding and the other to said firstnamed contact arm, and a plug at the lower 60 end of said handle against which said base is" engaged when the structure is inserted longitudinally within the handle.

Si ned at Chicago, in the county of Cook, and tate of Illinols, this 20th day of Decemher, 1929. p

' WILLIAM J. CAMERON.

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