US1175873A - Hair-clipper. - Google Patents

Description

F. M. S. PENNACCHINI.

HAIR CLIPPER.

' APPLICATION vFILED Nov. 11, 1915.

1,17 5,873. Patented Mar.14,1916.

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IINIIED STATES FA'IEN'I FFIGE.

FRANCIS M. S. PENNACGHINI, OF HAVERHILL, MASSACHUSETTS.

HAIR-CLIPPER.

Application filed November 11, 1915.

To all whom t may concern Be it known that I, FRANCIS M. S. PEN- NAcci-HNI, a subject of the King of Italy, and a resident of Haverhill, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Hair-Clippers, of which the following is a specification.

This invention relates to hair clippers and has for its object the provision of a device of this character which is adapted to regulate the length of the hair cut.

The invention consists in providing the clippers with a movable comb of varying thickness which may be advanced relatively to the cutting mechanism as the latter is moved upwardly through the hair during` the cutting operation.

The invention further consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given.

Of the drawings: FiOure 1 re oresents a plan of a pair o-f hair clippers embodying the principles of the present invention. Fig. 2 represents an elevation of the same with a portion cut in section on line 2-2 on Fig. 1. Fig. 3 represents a transverse section of the same on line 3-3 on Fig. 1. Fig. 4f represents an inverted plan of the same. Fig. 5 represents a transverse section of the slidable comb on line 5 5 on Fig. 2, and Fig. 6 represents a partial view of the development of the cam cylinder drawn to an enlarged scale.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 is a base plate having secured thereto the casing 11 having formed integral therewith the handle 12. The base plate 10 is provided with a plurality of teeth 13 adapted to coact with the teeth 14 formed in a plate 15 superimposed upon the base plate 10, said plate 15 being adapted to be reciprocated transversely of the base plate 10 by means of the actuating member 1G mounted to oscillate about the pivot pin 17 secured to the base plate 10 and casing 11 by means of the nut 18.

The actuating member 16 is provided with a handle 19 which is retained normally separated from the handle 12 by means of the spring 20 surrounding the pivot pin 17 with one end secured in the casing 11, and the Specification of Letters Patent.

Patented Mar. 1d, 1916.

Serial No. 60,958.

opposite end bearing against the pin 21 projecting from the member 16.

Vhen the operator grips the handles 12-19 and moves them toward each other, the teeth 13-14 will coact to cut the hair as the clipper i-s forced through said hair.

The cutting device just described is substantially the same as the hair clippers now in general use. rFliese clippers, however, do not provide any gage or other means for regulating the cutting of the hair, which it is obvious is a desirable object to attain so that the hair may be more readily and uniformly cut. To this end the base plate 10 has slidably mounted thereon a frame 22 having a comb 23 removably positioned therein.

'Ihe frame 22 has two rearwardly eXtending arms 24 provided with teeth 25 with which mesh the teeth of the gears 26 secured to a revoluble shaft 27 mounted in bearings in the ears 28 proj ecting from the handle 12 and the arm 29 formed integral with the casing 11. The gears 26 are driven by the pinions 30 secured to and revoluble with the shaft 31 mounted in bearing in the ears 28. Between the ears 28 and mounted upon the shaft 31 is a cam cylinder 32 provided with a zigzag cam path 33 terminating in a path 34 parallel to the aXis of said cyl.- inder 32. I/Vhen the cylinder 32 is revolved the gears 30, 26 will be rotated, and in their rotation the gears 26 in engagement with the racks 25 will cause the frame 22 to be advanced toward the teeth 14, thereby causing the comb 23 to assume a new position relatively to the cutting teeth 13'111.

The comb 23 has its front under side inclined as at 36 and when the clippers are in use this inclined surface 36 bears upon the scalp so that as the comb is advanced the cutting teeth 13-14 are moved farther away from the surface of the scalp and the hda-ir is cut longer. The gradual advancement o-f the comb 23 is accomplished by the manipulation of the handles 1219, causing the rotation of the cam cylinder 32. A rod 37 is mounted in a bearing in the handle 12 and in another bearing in the end of the arm 29 through which it extends with the end contacting with a bearing face 38 on the handle 19. A member 39 is secured to the rod 37, said member having a finger 40 extending into the cam path 33 of the cylinder 32 and retained in said path by the helical spring i1 surrounding the rod 37 between the member 39 and the ear 42 projecting downwardly from the handle 12. The spring 41 is not only adapted to move the rod 37 about its axis, thereby retaining the pin 40 in the cam path 33, but it also acts upon the member 39 forcing the rod 37 outwardly against the handle 19 and returning it to its normalposition as shown in Fig. 1.

lWhen the handle 19 is moved toward the handle 12, the member 39 Will be moved therewith, this causing the linger 40 in the cam path 33 to rotate the cylinder 32 as it moves against the inclined Wall of the cam path. When the handle 19 has been moved its full distance toward the handle 12 the pin 40 will enter the pocket 42 and when the gripping pressure is released from the handles 12-19 and the spring 41 forces the handle 19 outwardly to its normal position, the pin 40 Will contact with the Wall 43 and continue the rotation of they cylinder- 32 in the same direction until said pin 40 reaches the path when the pin 40 Will reciprocate in a straight line Without imparting further movement to the cam cylinder 32. Reverse movement of the pinion 30 is prevented by the paivl 44 engaging the teeth thereof as shown in Fig. 2. A spring 45 normally retains the paWl 44 in engagement with said teeth until disengaged by the operator pressing down on the pad 46 to disengage the pin 40 from the cam path 33. The member 39 provided With the pad 46 is secured to the rod 37 and rocks therewith so that When the rod 37 is rocked by the depression of the pad 46 the finger 47 Will engage the cam surface 48 and disengage the pawl 44 from engagement-With the teeth of said pinion 30. When the pavvl 44 is disengaged in this manner the. operator may manually return the comb 23, frame 22, gears 26-30, and cam cylinder-32 to their normal positions, and then by releasing contact With the pad 46 Athe spring 41 Will return the pin 40 into engagement With the cam path 33 ready for another operation.

1t is believed that the operation of the device and its advantages will be fully understood Without further description.

Having thus described my invention, I claim:A f

c1. ln a device of the class described, the combination of a cutting mechanism; a slidable comb thereon; a revoluble member for controlling the position of said comb having a peripheral cam groove; and movable means actuated by the operating means of said cutting mechanism including a pin engaging said cam groove and adapted in its movement to rotate said cam.

2. 1n a device ot the class described, the combination of la cutting mechanism; a slidable comb thereon; a revoluble member for controlling the position of said comb having a peripheral cam groove; a slidable member actuated by the handles of said cutting mechanism; and a linger thereon engaging said cam groove whereby said cam Will be rotated during the movement of said lslidable member.

3. 1n a device of the class described, the combination of a cutting mechanism; a slidable comb thereon; a revoluble member for controlling the position of said comb having a peripheral cam groove; a slidable member actuated by the handles of said cutting mechanism; a linger thereon engaging said cam groove; and means for disengaging said linger fromy said cam groove.

4. In a device of the class described, the combination of a cutting mechanism; a slidable comb thereon; a revoluble cam member tor co-ntrolling the position of said comb having a zigzag cam path; and means actuated by the operating means of said cutting mechanism for engaging said cam path and revolving said can 5. In a device of the class described, the combination of a cutting mechanism; a comb slidable thereon and provided with a plurality of rack teeth; gearing meshing .With said rack teeth; a revoluble cylinder for actuating said gearing having a peripheral cam groove; and means engaging said cam groove and controlled by the movement of said cutting mechanism for actuating said cam cylinder.

6. In a device of the class described, the combination of a cutting mechanism; a comb slidable thereon and provided with a plurality of rack teeth; gearing meshing With said` rack teeth: a revoluble cam cylinder for actuating said gearing-means controlled by the movement of said cutting mechanism forl actuating said cam cylinder; a device for normallv preventing reverse movement of said gearing; and means for operating said device to hermit the reverse movement of said gearing' and the return of said comb to its normal position.

7. In a device of the class described, the combination of a cutting mechanism a comb slidable thereon having variable thicknesses;

a revoluble member havinga peripheral cam groove; means -actuated by said cutting mechanism for rotating said cam member; Y

and mechanism interposed between said cam member and said comb whereby-said comb is advanced relatively to said cutting mechanism, said comb, operating mechanism including a pin engaging the groove of saidv cam member. Y

Signed by me at 4 Post Oiiice Sq., Boston, Mass., this 8th day of November, 1915.

FRANCIS M. S. PENNACCHINI.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washingtonl D. G.

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