US1544105A - Attachment for hair clippers - Google Patents

Description

June 30, 1925.

' G. POSNICK ATTACHMENT FOR HAIR CLIPPERS Filed Jan. 7, 1922 I nnn'mnnr: a a I .1.

2 Sheets-Sheet l INVENTOIg R Gewyel Pomz' b,

ATTORNEY.

Juhe 30, 1925. 1,544.105

G. POSNICK ATTACHMENT FOR HAIR CLIPPERS Filed Jan. 1922 2 Sheets-Sheet 2 a 43 46 4/ 3 4.5 a I INVENTOR,

I G'eorye Pas/2m 'BY A TTORNEY.

Patented June 30, 1925.

GEORGE POSNICK, OF SPRINGFIELD, MASSACHUSETTS.

1 I ATTACHMENT FOR HAIR GLIPPERS.

Application filed January 7 1922. Serial No. 527,631.

To all whom it may concern.

Be it known that I, GEORGE PosNIoK, a citizen of the United States of America, residing at Springfield, county of Hampden,

Commonwealth of Massachusetts, haveinvented certain new and useful Improvements in Attachments for Hair Clippers, of which the following is a specification.

This inventionrelates to improvements in attachments for hair clippers.

,Aniobject of the invention is to provide an, attachment that is adapted to be used on the ordinary clippers for automatically gaging or gradually varying the length of the hair which is being cut or trimmed so that it will present a smooth and finished appearance. In using the ordinary clipper it is often times necessary to move the cutting or advancing edge away from the head as the clipper is carried up the side or back of the neck.

An object of the present invention is therefore to provide an attachment which will automatically move the cutting edge of the clipper away from the head as the implement is moved forward during the cutting operation. In general it comprises a member adapted to be gradually moved outward beyond the lower plane of the cutting edge during the operation of the handles. whereby the cutting edge is gradually moved away from the head;

A further ob 'ect is to provide means for rendering the device inoperative if desired during the cutting operations. The attachment in general comprises a ratchet device which is operatedby the handles of the implement as they are moved toward and away from. each other. and suitable connecting means between the ratchet device and the member which engages the head and which serves to move the implement away from the head. a

A. further object is to provide means for setting or adjusting the distance of the cutting edge from the head.

7 Referring to the drawings:

Fig. 1 is a plan view ofthe improvement shown attached to the ordinary hair clipper.

Fig. 2 is a plan view of the operative parts of the ratchet device on an enlarged scale.

Fig. 3 is a side elevational view of Fig. 1 partly in section showing in full lines the device in the same plane as the cutting edge of the clipper and in dotted lines the part that engages the head, moved downward, to

hold the cutting edge away from the head.

Fig. i is a vertical sectional view on the line 44 of Fig. 2 showing the interiorconstruction of the box-like member that is attached to one of the handles and in which is located the pinion that operates the rack.

Fig. 5 is a side elevational view of a modification of the attachment for elevating the cutting edge of the clipper. i

Fig. 6 is a plan view of a further'moditication.

Fig. 7 is a side elevational view of Fig. 6 showing the wedge-shaped member in dotted lines moved away from the'lower surface of the clipper.

Fig. 8 is a plan view partially in section showing the ratchet construction and the adjusting mechanism of the attachment.

Figs. 9 and 10 is a side and bottom plan view, respectively, of the adjusting bolt for varying the fixed position of the rack, and

Fig. 11 is a vertical view on theline 11-11 of Fig. 8 showing the interior elements for moving the wedge shaped member away from the bottom surface of the clip per.

Referring to the drawings in detail:

1 and 2 designate the usual grip handles of the hair clipper which are pivotally connected together as indicated at 3; The operation of these handles moves thecutting plate 4 across the fixed or base plate 5 in the usual manner. 6 designates a U-shaped member havingthe downwardly projecting curved ends 6. This member is attached to the pivot 3 by means ofthe U-shaped memher 7 and the nut 8. The member 6'is clesigned to have a loose pivotal or swinging movement in the member'7. The member 6 is provided with a downwardly projecting arm 8 to the lower end ofwhich is connected the rod 9. This rod is bent and arranged. substantially parallel to the arm 1. On this rod is placed a coiled expansion spring 10. 11 (see Fig. 4) indicates a box member which is secured to the handle 1 in any suitable way as shown by the screws at 12. Located in the box member 11 is a pinion 13 which engages the rack 1e and is attached to or forms a part of the rod 9. Secured to the shaft of the pinion 13 is a ratchet wheel 14. Attached to the arm 2 is a bracket 15 having a downwardly extending bent portion 15. 16 indicates a threaded rod that passes loosely through the bent portion 15.. 17 is a nut engaging the threaded portion of the rod 16 for adjusting the throw of the rod. Connected to the rod 16 is a leverarm 18 that is pivoted to the box 11 at 19 also pivotally connected to the rod 16 at 16. The two pawls 20 and 21 are also pivotally connected to the rod 16 and lever arm 13. These pawls are normally forced or moved away from each other and from" engage ment with the ratchet wheel14 as shown in Fig. 2. The spring arms 22 and 23 are at tached to the boxll by means of the post 24 around which these two pawls are coiled. In order to force or move the two pawls 20 and 21 into contact with the ratchet wheel 14, a lever 25 is provided. This lever is pivoted to the box 11 at 26 and is formed with a cut out portion 25. The ends 28 of this cut out portion, are when the lever is moved in the direction of the arrow 27 brought into engagement with the spring arms 22 and 23 which forces the two pawls 20 and 21. into contact with the teeth of the ratchet wheel 14. The lever 25 is normally held in the full line or retracted position as indicated in 1 by means of the spring plate 21'.

In Fig. 2 is shown the lever 25 moved into the dotted line position with the edges 28 of the slot'25 engaging the spring arms 22 and 23 which forces them together, as shown in dotted lines at 22 and 23. As the operator moves the handles 1- and 2 the pawls 20 and 21 will engage the teeth of the ratchet wheel 14 moving it in the direction of the arrow and at the same time the pawl 21 on the lever 25 will engage one of the teeth of the wheel 14 and hold it against movement, which would result on account of the expansive force o t the spr ng 10. The operation of this wheel turns or rotates the 131111011 13 which operates the rack 14, and in turn, operates the rod 9 in the direction of the arrow 9. This movement causes the lower end 6 of the member 6 to be moved downward into the dotted line position, whereby the cutting edge of the clipper is moved away from the head at a distance equal to the dotted line 29 shown in Fig. 3. The end 16? of the rod 16 will be engaged by the inner surface of the handle 2 to move the rod 16 in the direction of the arrow 16 It is to be understood that as the oper-.

inner end of the bracket arm 15 and serves to operate or push, the rod 16in the oppositedirection as shown by the arrow 16 The ratchet wheel 14 is thus operated in both the inward and outward directions of the handles. In using the implement the operator must press or hold the lever 25 inward during the operation.

Referring to Fig. 5 which shows a modification, 30 designates a block having a wedge shaped or tapered portion 30' at its forward end. This block is mounted for sliding movement on the lower surface of the; plate 5 and is pushed forward by the rod 9, which rod is connected to a lever 31 that is pivoted to the implement at 32. A slotted connection 31 is provided for the pin 32. i

Itis to be understood that the rod 9 is operated by means of the ratchet pawl a dovetail construction indicated at 30? in flexible hinges 34. Attached to the mem ber 33 is an arm 35 which arm is pivotally connected to the sliding rod 36 at 36. This rod is mounted for movement in thecasing 37 and is normally held in a retracted position by means of the spring 38. The forward end of the rod is formed with a rack 39 which engages the pinion 40. This pinion is operated by means of the ratchet whee141 to which it is connected. 42 and 43designate two pawls which are pivotallyconnected to the opposite ends of the slidable-inember 4 for engaging the ratchet wheel 41, when the slidable member 4 is moved in opposite directions by the handles 1 and 2 as indicated by the arrows 44. 45 designates a lever which is loosely pivoted on the post 46. Connected to this lever is a link 47 which is provided with notches 47" for holding it in an adjusted position.

Attached to and carried by the lever 45 are two arc-shaped pieces 48 and 49 for the purpose of engaging the pawls 42 and 43 for holding them away from engaging the teeth of the ratchet wheel 41 when itis not desired to have them turn the wheels 40' and 41 and move thepiece 33 downward, as shown in the dotted line position. The pawls 42 and 43 are retained in this inoperative position by means of the teeth 47. If it is desired to set the piece 33 in fixed position the link 47 is set to render the pawls inoperative. The operator now turns the set screw 50 which is formed with a plurality of elevations 51, 52,53, and 54 of difierent elevations. The elevated surfaces engage the pin 35 onthe rod 36 whereby,

by means of the connection with the rod 35 the wedge shaped block 33 is moved downward into the dotted line position as shown in Fig. 11.

What I claim is:

1. An attachment for hair clippers of the type described having a fixed and a movable plate and comprising, in combination, handles for operating the movable plate, a member pivotally connected to a fixed part of the clipper and designed to be tilted below the lower surface of the fixed plate, pawls connected to the movable plate, a ratchet wheel on one of the handles and actuated by the pawls from the other handle, a gear actuated by the ratchet wheel, a rack connected to said member and actuated by the gear for moving the member below said surface when the handles are operated and means for rendering the pawls inoperative.

2. An attachment for hair clippers having a fixed and a movable plate and comprising in combination, means for automat- .ically varying the length the hair is cut as the clippers are operated, comprising a member movably attached to a fixed part of the clippers and designed for movement into a position below the plane of the lower surface of the clippers, a slidable rod pivotally connected to the said member, and means connected to the movable plate for operating the rod when the handles are operated.

3. An attachment for hair clippers of the type described, comprising, in combination, a member pivotally connectedto a fixed part of the clipper, means for retaining the same in fixed and adjusted positions below the plane of the lower surface of the clippers, said means including a set screw having elevations thereon, a bar engaged by the elevations, and the .bar being connected to the said member.

4. In an attachment for hair clippers of the type described the combination, of a ratchet wheel attached to one of the handles pawls engaging the wheel and operated from the other handle, a member pivotally attached to a fixed part of the clippers and capable of movement below the lower surface of the clippers, the pawls and ratchet being operable from the handles, connecting means between the ratchet and said member, and means comprising are shaped plates located between the teeth of the ratchet and the pawls for rendering the pawls inoperative and means for varying the position of said plates.

5. An attachment for hair clippers of the type described, comprising a wedge shaped member pivotally connected to a fixed part of the clippers, means for adjusting said member, said means comprising a slidable bar whichis connected to said member and a set screw in the fixed member and having elevations on the head of the set screw for retaining the said member in different posi tions of adjustment relative to the bottom surface of the clippers.

6. An attachment for hair clippers of the type described comprising a wedge shaped member which is pivotally connected to a fixed part of the clippers, means for adjusting the member, said means comprising a bar connected to; the member and a set screw in the fixed part of the clippers and having elevations on the head of the set screw engaging the bar for retaining the member in different positions of adjustment, and means for automatically moving the member downward when the handles are operated comprising pawls on the recipro cable cutter member of the clipper, a ratchet wheel on a fixed part of the clipper with which the pawls engage and connecting means between the ratchet wheel and the member. I

7. In a hair clipper attachment of the type described, the combination, a member pivotally connected to a fixed part of the clipper and designed for tilting movement below the lower plane of the clipper, means for operating the member from the move ment of the two handles comprising a rod connected to the member, a ratchet device on one of the handles, pawls on the other handle for operating the rod from the handles, in both inward and outward directions of the handles, and means compris ing are shaped members, for rendering the pawls inoperative, the arc shaped members being located between the pawls and ratchets.

GEORGE POSNICK.

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