US1158781A - Revolving safety-razor and massage mechanism. - Google Patents

Description

G. L. BONHAM. REVOLVING SAFETY RAZOR AND MASSAGE MECHANISM.

APPLICATION FILED APR. l6, I914.

Patented Nov 2 Inventor Attorneys UNITED STATES PATENT @FFTfiE.

GUY L. BONHAM, OF WEST HARTFORD, CONNECTICUT.

REVOLVING SAFETY-RAZOR AND MASSAGE MECHANISM.

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed April 16, 1914. Serial No. 832,340.

To all whom it may concern:

Be it known that I, GUY L. BoNHAM, a citizen of the United States, residing at Vest Hartford, in the county of Hartford and State of Oonnecticut,-have invented a new and useful Revolving Safety-Razor and Massage Mechanism, of which the following is a specification.

The device formingthe subject matter of this application is a combined safety razor and massage device of that general type in which the blade holding head is power driven.

The invention aims to improve the mecha: nism whereby motion is transmitted from a prime mover to the blade holding head.

It is within the scope of the invention to improve generally and to enhance the utility ofdevices of that type to which the present invention appertains.

With the above and other objects in'view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without depart,- ing from the spirit of the invention.

In the accompanying drawings :Figcrre 1 shows in longitudinal section, a device constructed in accordance with the present invention; Fig. 2 is a transverse section on the line 22 of Fig. 1, the specific blade holding head depicted in Fig. 1, however, having been replaced by a. blade holding head of another form; 3 is a fragmental sectional detail showing a modified form of blade holding head; Fig. 4 is a sectional.

detail illustrating a further modification in the blade holding head; Fig. 5 is a longitudinal section showing a modified form of the invention; Fig. 6 is a cross section'of the structure shown in Fig. 5, taken on the line 66 of Fig. 5.

In carrying out thepresent invention and referring particularly to Fig. 1, a casing is shown, the same including a tubular body 1 across which extends a partition 2. A forward cap 3 is threaded as indicated at 4 on the edge of the partition 2 and one end 5 of the body 1 serves as an abutment receiving the corresponding end of the cap 3. A rear cap 6, which may be made ofinsulating material, is threaded as indicated at 7 upon the body 1 and terminates in a reduced neck 8, threaded as shown at 9 or otherwise adapted bearing partition 12 extends across the neck 8. Located within the body 1 of the casing is an electric motor 14 of any desired type,

, to receive a handle 10 having a bore 11. A 1

the shaft 15 of which is journaled in the bearing partition 12 and in a bearing 16 mounted in the partition 2. A flexible conduit l7 lies in the bore 11 of the handle 10 and incloses the conductors 18 which form a part of the circuit of the motor 14. One of the conductors 18 is connected with a contact 19 located on the outside of the neck 8. A resilient lever 21 is secured as shown at 22 to the rear cap 6 and is adapted to come into contact with the element 19, the lever 21 terminating in an insulating handle 20. The lever 21 forms a part of the motor circuit. Since a patent cannot be obtained upon a safety razor due to any specific motor construction, a further and more minute description of the details under consideration need not be entered into, it being obvious that by pressing upon the handle 20, the motor circuit will be closed and themetor energized to impart rotation to the motor shaft 15. Secured to the forward end of the motor shaft 15 is a pinion 23 meshing into a larger gear wheel 24 formed upon one end of a tubular bearing 25 constituting a part of the blade holding head, the latter including end plates 26 connected with the bearing One of the end plates 26 is provided with an outstanding rounded boss 27, the function of which will be made manifest hereinafter. The end plates 2.6 of the blade holding head are connected by longitudinal supporting plates 28 bent upon themselves to form spring clips 29, as shown in Fig. 4, the clips 29 serving to hold in place the blade 30. At this point it may be stated that the blade 30 may be a razor blade or it may be a massage implement of any de sired'sort. The bearing 25 is slipped over a shaft 31, threaded as'indicatedat 32 into the partition 2. In operation, the bearing 25 is slipped over the shaft 31, the gear wheel 24 which is carried by the bearing 25 thus beingbrought into mesh with the pinion 23 which is mounted on the end of the armature shaft-15. Then the forward cap 3 is threaded into place on the body 1 and the end wall of the cap-.3 engages or is located close to the boss 27 so as to hold the blade retaining head in place and to keep the pinion 23 in mesh with the gear wheel 24.

Passing to Fig. 3, the tubular bearing of the blade holding head is shown at 33 and the end plates are shown at 34, the latter being connected by abutment plates 35, each of which is formed along one of its longitudinal edges with a blade stop 36 adapted to receive the rear edge of the blade 49. A rod 37 connects the end plates 34 and fulcrumed upon the rod 37 is a clip 38 constrained by a spring 39 to engage the blade 49. The tubular bearing 33 is provided with a gear wheel 48 adapted to mesh into the gear wheel 33 and, in Fig.2, the head depicted in Fig. 3 has been shown assembled with the forward cap 3 in order to illustrate clearly that either of the structures shown in Figs. 3 and 4 may be employed in connection with the specific casing construction delineated in Fig. 1. Formed in the side of the forward cap 3 is an opening 40 shown most clearly in Fig. 2. Guides 41 are struck from the cap 3 adjacent the opening 40 and receive slidably a resilient closure 42 cooperating with the opening 40. Pivoted as shown at 43 to the closure 42 is a screw 44 having trunnions 45 mounted to swing in bearings 46 mounted on the cap 3. The screw 44 is provided with a turning head 47. As will be understood readily the'blades or massage implements move close to the opening 40 and by manipulating the screw 44, the closure 42 may be reciprocated in the guides 41, thus to vary the effective size of the opening 40. When the size of the opening 40 thus is varied, the closeness of the shave afforded will be regulated.

Passing to Fig. 5, the casing is shown as comprising a tubular body 50 having a reduced neck 51 terminated in a transverse head 52 upon which is threaded as shown at 53, a forward cap 54. JA rear cap 55 is threaded as shown at 56 onto the body 50 a and terminates in a button 57 through which is passed a flexible conduit 58.

Aspring arm 59 is secured to a projection 60 on the rear cap 55 (which may be made of insulating material), the arm 59 terminating in a button 61. The arm 59 forms a continuation of one of a pair of conductors arranged in the conduit 58-and, as will be understood readily, the conduit 58 may be extended onto the arm 59 to a point close to the button 61, thereby to avoid any danger of shock. The spring arm 59 is adapted to come into engagement with a contact 62 on the rear cap 55, the contact 62 being interposed in the circuit of a motor 65 located Within the bodyportion 50 of the casing. A suitable element indicated at 64 and carried by the cap 55 is employed for completing the motor circuit. Obviously, by pressing the arm 59 through the medium of the button 61 and bringing the arm into engagement with the contact 62 the circuit of the motor 65 may be closed.

' The armature shaft of'the motor 65 is.

shown at 66 and the rear end of the shaft 66 is journaled in a ball bearing 67 carried by the rear portion of the cap 55. The forward portion of the motor shaft 66 may be squared as shown at 68, the squared portion of the motor shaft carrying collars 69 journaled in ball bearings 70 supported by the neck 51 of the casing. A beveled washer 71 may be applied to the squared portion 68 of the armature shaft, within the forward cap 54, the washer serving to protect the forward set of ball bearings from lather or other foreign material which may accumulate within the forward'cap 54. The beveled washer 71 is held in'place by a collar 72 mounted on the squared portion 68 of the shaft 66 and held thereon by means of a set screw 73.

The blade holding head comprises a tubular shaft 74 having a squared opening 75 which is slipped over the extremity of the squared portion 68 of the shaft 66. One end plate 76 of the blade holding head is provided with a boss 77 which, coiiperating blade. At this point it is to be noted that the set screws 80, although shown only in Fig. 6, may be employed in connection with all forms of the invention when considered necessary or expedient. The forward cap 54 is provided with guides 81 receiving a slidable closure 82 controlling an opening 83, as hereinbefore describedand for the purposes hereinbefore set forth. Pivoted at 84 to the closure 82 is a screw 85 having trunnions 86 mounted to rock in a bearing 87 on the cap 54. The screw 85 terminates in a turning head 88.

So far as the structure shown in Figs. 5 and 6 is concerned, it will be obvious that when the motor shaft 66 is actuated through the medium of the motor 65, the blade holding head will be rotated within the forward cap 54, the head carrying the blades in close proximity to the opening 83, the effective driven shaft; a second shaft fixed in the casing; a sleeve movable endwise upon the sec- 0nd shaft and journaled thereon; a pinion fixed to the sleeve and meshing intothe pinion on the driven shaft; a blade holding means carried by the sleeve; and a cap removably mounted on the casing and engag ing the sleeve independently ofthe fixed shaft to prevent an endwise movement of the sleeve and to hold the pinions in mesh.

2. In a safety razor, a casing; a driven shaft journaled therein; a pinion on the driven shaft; a second shaft fixed in the casing; a tubular shaft movable endwise upon the second shaft and journaled thereon, the sleeve terminating at its outer end in a projecting boss; a pinion fixed to the sleeve and meshing into the pinion on the driven shaft; a blade holding means carried by the sleeve; and a cap removably mounted on the casing and engaging the boss, the boss constituting a means for spacing the blade holding means from the cap thereby to avoid friction, the boss constituting a closure for one end of the sleeve, thereby to prevent the entrance of lather into the sleeve, the boss constitutin a means, cooperating With the cap, for ho ding the pinions in mesh.

3. In a safety razor, a supporting structure; a shaft carried thereby; a tubular sleeve on the shaft; end plates connected with the sleeve; an abutment plate connecting the end plates; a rod connecting the plates; a clip fulcrumed intermediate its ends on the rod, one end of the clip coacting with the abutment plate, the other end of the clip constituting a means for manipulating the clip; and a rod-carried spring coaeting with the clip to hold the first specified end thereof in cooperating relation to the abutment plate.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

GUY L. BONHAM.

Witnesses:

MARGARET V. HoYE, H. C. WHITMAN.

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