US538220A - Hair-clipping machine - Google Patents

Description

(No Model.)

E. A. COCHRAN.

HAIR CLIPPING MACHINE.

No. 538,220. Patented Apr, 23, 1895.

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EDWARD A. COCHRAN, OE BAYONNE, NEW JERSEY, ASSIGNOR TO JOHN J. TOWER, OF BROOKLYN, NEW YORK.

HAIR-CLIPPING MACHINE.

SPECIFICATION forming' part Of Letters Patent No. 538,220, dated April 23, 1895.

Application filed September Z6. 1894. Serial No. 524,134. (No model.)

To all whom it' may concern,.-

Be it known that l, EDWARD A. COCHRAN, a citizen of the United States, and a resident of Bayonne, in the county of Hudson and State plication, Serial No. 448,309, tiled October 10,d

1892, certain constructions of mechanism for performingthe double stroke motion; but the object of my present improvement is to concentrate the mechanism into a compact form, whereby the necessary ranges of motion may be had, and the parts, made of substantial and durable size, may be placed within a small space, which is especially desirable in barbers clippers. j

My invention consists in certain novel features of construction hereinafter described in detail, and pointed out in the appended claims.

Referring to the accompanying drawings, in which like reference characters indicate like parts in each of the several views, Figure 1 is aplan view; Fig. 2, an inverted plan View, with the comb-plate and cutter-plate'partly broken away to show the interior parts; Fig. 3, a side elevation; Fig. 4a front sectional elevation taken at w Fig. 2, and Fig. 5 a detail View illustrating a modification.

A, represents the stationary comb-plate, having teeth 1, and B, the reciprocating cutter-plate, having teeth 2. C is the housing bearing the fixed handle 3, and the movable handle 4, is pivoted at 5 to the under side of and within said housing C.

The cutter-plate B, is guided on rollers 6 mounted on studs 7 screwed into the housing C, and the heads of the studs project into the comb-plate A, serving as dowels, and the comb-plate is held in place, so as to confine the cutter-plate B, between the same, and the housing C, with the necessary elastic pressure of the stroke.

for cutting by means of a clamping screw bolt 8, nut '9, and spring 10. The cutter-plate B, is slotted at 11 to clear the bolt 8.

The movable handle 4, is pressed toits outward position by means of a spiral spring 12, adjustable by means of a screw-plug 14, by the removal of which the spring may be conveniently Withdrawn or replaced. The spring 12, is supported by teats 15, 16, on the handle 4 and plug 14, respectively, having free space for action, in the cavity of the housing C.

The movable handle 4, carries within the housing C, a vibrating arm 17 integral with said handle, and extendingalong from the pivot 5 which is near one side ot the housing, to a radius length nearly the entire Width of the housing, obtaining at the extremity of said arm 17, a large range of motion.

A toggle arm 18, is pivoted to astud 19, on the housing C, and a toggle arm 20, is pivoted to a stud .21, on the cutter plate B, and said toggle arms are jointed together at 22. The toggle arm 18 is slotted at 23. A projection on the extremity of the handle arm 17 engages in the slot 23. preferably in a stud 24 bearing a roller 25, titting the slot of the toggle arm.

The construction shown in Fig. 2 has the advantage that the extremity of the handle arm 17 engages at bearing points on the toggle 18 at variable radial distances from the center of the fulcrum 19,'which radial distances are lsrnallestwhen the toggles sweep past their intermediate position, and are greatest when the toggles approach either extremity of stroke. Thus the lineal speed of the cutter-plate B, is equalized, distributing the resistance of cutting, about equally at all parts The invention, however, includes such a modification as shown in Fig. 5, or other equivalents. In Fig. 5, the roller 25, is placed on a stud on the toggle arm 18, and the extremity of the handle arm 17,is slotted at 26 to receive the roller.

The toggle arms 18 and 20 arranged as shown with the fulcrum 19 at the side of the housing C opposite to that containing the handle pivot 5, and the extremity of the handle arm 17, over-reaching the central joint 22, of the toggle arms, and engaging with the member 18 farthest from its pivot 5, affords a Said projection consists IOO marked advantage over former constructions in point of compactness and concentration of parts without limiting range of motion In other words, the arm 17 occupies the same vertical space as the toggle arms in the organization of the machine.

Each of the figures except Fig. 4, illustrates the normal position of the parts at which the spring 12 is fully expanded, and the movable handle 4, is farthest from the fixed handle 3.

In Fig. 4 an intermediate position of the toggle arms is represented, wherein the handle 4 is at half-stroke and the central joint 22 is brought into the line (Fig. 2) of the centers 19, 21, and the cutter plate is at the opposite extremity ot its stroke to that shown in the other figures. When the handle 4, is further contracted by the hand, the toggle arms assume the position indicated by dotted lines in Fig. 2, bringing the cutter-plate again to its starting point. These two motions of the cutter-plate are repeated when the hand is relaxed and the spring 12 expands, giving two motions of the said cutter plate for each single motion ot' the handle 4.

The toggle arms 18, 20, might be pivoted to the frame of the clipper at that extremity of said arms nearest the handle pivot 5, as at 21, or in fact on the handle pivot itself, and pivoted to the cntter-plate B, at that extremity of said arms farthest from the handle pivot 5, as at 19, within the scope of this invention.

I claim as my invention- 1. In a clipping machine, the combination of a suitable frame, a combplate, a reciprocating cutter plate, a movable handle fulcrumed at a xed point in the machine near one side thereof, and having a vibrating arm extending transversely toward the other side thereof, and toggle arms lying between the cutter plate and the said vibrating arm, suitably connected thereto, and to a fixed part of the machine, and to the cutter-plate, so as to produce two motions of the cutter-plate for each single motion of the said handle, substantially as described.

2. In a clipping machine, the combination of a suitable frame, a comb-plate, a recipro eating cuttergplate, a movable handle fulcrumed near one side of the frame, toggle arms jointed together and fulcrumed near the other side of the frame, and connected to the cutter-plate, and a vibrating arm upon the movable handle, extending from its said pivot in the direction of the length of the toggle arms, beyond the central joint thereof, and connected to the toggle arm that is fulcrnmed to the frame, by means of a projection or roller upon the one member, and a slot in the other member, substantially as described.

3. In a clipping machine, the combination of a suitable frame, a comb-plate, a reciprocating cutter-plate, a movable handle fulcrumed to the frame, toggle arms jointed together, and fulcrumed at one end to the frame, and connected at the other end to the cutterplate; the toggle arm that is fulcru med having a longitudinal slot, and a vibrating arm upon the movable handle, having a projection or roller engaging in said slot, substantially as described.

4. In a clipping machine, the combination of a comb-plate, a reciprocating cutter-plate, a housing above the cutter-plate, a movable handle pivoted in the housing near one side thereof, toggle arms jointed together and fulcrurned at one end to the housing, and connected at the other end to the cutter-plate, a vibrating arm upon the movable handle, extending from its said pivot over the central joint of the toggle arms and engaging with the toggle arm farthest from said handle, substantially as described.

Signed at New York city, in the county of New York and State of New York, this 20th day of September, A. D. 1894.

EDVARD A. COCHRAN.

XVitnesses:

K. M. TUCKER, H. F. PARKER.

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