Patent GB-319998-A (GB)
Title: Improvements in a mechanical manicuring machine
IPC: A45D29/14
Filed: 1928-12-21
Abstract: 319,998. Lidseen, G. Dec. 21, 1928. Oscillating machines.-A manicuring-machine comprises a casing 2, Fig. 2, containing an arm or vibrator 15 carrying a buffer 30, a polisher 31, a cuticle pusher 23, together with several files or a file and a sand board 32, Fig. 3. A coil 9 is provided for vibrating the arm, which coil can be energized either by alternating or direct current without any change in the construction of the machine. The coil is secured to a plate 6 by cores 10 bolted at 11 to the plate. The core is bipolar having one pole 12 in the axis of the coil, and a pole 13 disposed laterally. The armature 15 is bolted at 16 to a spring 17 which is retained against the concave surface of a lug 14 by an adjusting screw 18. This screw has a reduced portion 19 threaded into the lug 14, and a shoulder 20 bearing against the opposite side of the spring 17, whereby the tension of the spring may be varied for adjusting the vibration of the armature 15. A pole-piece 21 is attached to the armature 15 in position to be influenced by the core 12 of the coil, while another pole piece 22' is attached to the armature in position to be influenced by the second pole 13. The second pole imparts a greater pull on the armature making the machine more efficient. The armature 15 has its free end bent at an angle with an end 23 projecting beyond the side of the casing 2. This end 23 serves as the cuticle pusher. A plate 24, Fig. 8, of nonmagnetic meta] is riveted to the bent portion 26 of the armature. The upper portion 27 of the plate is inclined and carries two circular collars 28 into which are threaded the buffer 30 and polisher 31. The abrasive element 32 is secured flatwise against the curved downwardly extending portion 34 of the plate 24. The casing 2 has a ridge 36, Fig. 3, serving as a finger-nail guide. A socket 38, Fig. 2, attached to the end of the plate 6 projects through an opening 39 in the casing at the opposite end from the operating tools. This socket receives a two-prong electrical plug for supplying current to the coil 9. The socket has three contact conductor receptacles A, B, C, Fig. 7. A conductor 41, Fig. 2, is connected to the contactor A and to one end of the coil winding. The conductor 42 is connected to a contactor B and to the other end of the coil winding at 43. The two-prong plug being inserted in the socket 38 with the prongs in the contactors A and B, and connected to a source of alternating current, will energize the coil 9 for vibrating the arm 15. A make and break device D comprises an arm 44 and another arm 45 secured to the plate 6 by insulating blocks 46 suitably fastened to the plate. The arm 44 carries a contact point 47, while the arm 45 carries a contact 48 normally in engagement. A conductor 49 is connected to the contactor C and to a binding post 50 on the arm 44 of the make and break device. A conductor 51 is connected at one end to a binding post 52 on the arm 45 of the make and break device, and at the other end to the terminal 43 of the coil. With direct current, the plug will have one prong on contactor A, and the other one on C so that flow will be through D and coil 9. When the armature 15 has been attracted a certain distance, an insulated projection 53 will open circuit through contacts 47, 48, interrupting flow and vibrating the armature 15.