US 560260 A
Description (OCR text may contain errors)
" T. P. DONNELLY.
f atented May 19, 1896.
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PATENT THOMAS P. DONNELLY, OF BRIDGEPORT, CONNECTICUT.
SPECIFICATION forming part of Letters Patent No. 560,260, dated May 19, 1896.
Application filed December 23, 1895. Serial No. 573,010. (No model.)
To all whom it may concern:
Be it known that I, THOMAS P. DONNELLY, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State 'of Connecticut, have invented certain new and useful Improvementsin Hair-Clippers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to hair-clippers, and has for its object to provide a clipper which by a simple movement of the head of the clipper, which comprises the guard-plate, the cutter-plates, and the top plate, may be so adjusted as to make a relatively long or short cut.
With this end in view I have devised the simple and novel clipper of which the following description, in connection with the accompanying drawings, is a specification, numerals being used to designate the several parts.
Figure 1 is a plan view of my novel clipper; Fig. 2, a section on the linesca: in Fig. 1; Fig. 3, an end elevation; Fig. 4, a plan view of the guard-plate, showingboth of the cutter-plates in place, the top plate, handles, &c., being removed; and Fig. 5 is an inverted plan view of the top plate detached.
1 denotes the guard-plate,which is provided on one side with a set of relatively small guards (designated by 2) for making a short out and on the opposite side with a set of larger guards (designated by 3) for making a longer out.
4 denotes a cutter-plate which is provided with a set of relatively small cutting-teeth 5, which correspond with guards 2, and 6 a cut,- ter-plate which is provided with a set of larger cutting-teeth 7 ,which correspond with guards 3. Both of the cutter-plates are provided with shanks 21, having shoulders 31 and recesses 17, the functions of which will presently be explained.
8 denotes the fixed handle, which is made integral with or rigidly secured to an outer sleeve 9.
1O denotes an inner sleeve lying within sleeve 9,which is internally threaded at its upper end, as at 11, and is provided at its lower end with an outwardly-turned flange 12.
13 denotes the movable handle, which is pivoted to the fixed handle, as at 14, passes through a slot 15 in the inner and outer sleeves, and is provided at its inner end with a downwardly-extending arm 16, which is adapted to engage the recess 17 in either of the cutter-plates. It should be noted that this arm is so shaped as to engage one only of the recesses at a time, so that when one of the cutter-plates is in use the other will remain stationary, the operative cutter-plate being, of course, the one toward the front.
18 denotes the top plate, which is provided on its under side at the edges with flanges 19, which lie outside of shoulders 31 on the cutter-plates and at its center with a hole 20, through which the inner sleeve passes. In assembling, the inner sleeve is passed through hole 20, flange 12 lying on the under side of the top plate, which is secured to the guardplate in any suitable manner, as by studs 22, which pass through holes in the top plate, the upper ends of said studs being threaded to receive nuts 23, by which the parts are locked together. I have shown the studs as provided with base-plates 24 and as secured to the guard-plate by screws 25. An ordinary bolt may be passed through said plates if preferred. as stops to limit the movement of the cutterplates.
26 denotes a nut which engages thread 11 on the inner sleeve to lock the parts in position after adjustment, the action of this nut being to clamp outer sleeve 9 down upon the top plate and to clamp flange 12 on the inner sleeve against the underside of the top plate, thus locking both sleeves and the handles rigidly to the head. I have shown the inner sleeve as held against rotary movement by a screw 27, which passes through a slot 28 in the outer sleeve and engages the innersleeve.
29 denotes a spring between the handles, which acts to hold the movable handle at the extreme of its outward movement-that is, its movement away from the fixed handle. I have shown one end of the spring as seated in a socket in one of the handles and the other end threaded and passed entirely through the The base-plates serve additionally.
other handle, said thread being engaged by a nut 30 on the inner side of the handle for the purpose of adjusting the tension of the spring.
The operation will be readily understood from the drawings. Suppose thata short cut is required. The parts are placed in the position shown in the drawings, in which the clipper is ready for use in making a relatively short out. The normal position of the parts when in position to make the short cut will be clearly understood from Figs. 2 and 4. The spring acts to hold the movable handle to the eX- treme of its outward movement, and conse quently holds cutter-plate at at its normal position-that is, in position to commence a cutting movement-its outward movement being stopped by the engagement of its shank with one of the base-plates 2i. Suppose now that it is required to make a relatively long cut. Nut 26 is turned backward sufliciently to loosen the sleeves relatively to the top plate, which leaves the top plate, guard-plate, and the eutter-plates, which may all be included under the term head, free to be rotated relatively to the sleeves and the handles. \Vhen the head has been given a half-turn, the parts will be in just the reverse of the position shown in the drawingsthat is to say, the larger guards and cutter-plate 6 will be toward the front. It will be readily understood from Fig. 4 that this half-rotation of the head in the horizontal plane may be made without moving either cutter-plate to the slightest extent. This is owing to the fact that the recesses 17 in the cutter-plates are deeper than a semicircle and that the outer face of arm 16 is an arc of a circle, the center of which is the center of the double recess formed when the two recesses 17 in the cutter-plates are in exact alinement with each other, as in Fig. 4C. This special construction of the parts enables me to turn the head and adjust the clipper for making the long or the shortcut while the parts are at their normal position. I preferably make arm 16 wide enough to fill either of the slots when at its normal position, so
that there will be no 10st motion. It is of course necessary that arm 16 be so shaped that it will not, when either cutter-plate is in use, come in contact with the edge of the shank of the inoperative cutter-plate-that is to say, that when cutter-plate i is in use the arm will not come in contact with the shank of cutter-plate (5. As soon as the half-turn of the head has been made the operator locks the parts in position by simply tightening up nut 26 again, which clamps both sleeves against the top plate. It will thus be seen that the change of adjustment from the long cut to the short cut, or vice versa, may be made at any time by simply loosening nut 26, givinga half-turn to the head, and then tightening upthe nut again. No other movement of the parts is required, as arm 16 will readily pass from the slot 17 in one of the cutterplates to the slot 17 in the other cutter-plate.
Having thus described my invention, I c1ai1n-- 1. In a clipper the eombinationwith an adustable guard-plate having two sets of guards and two separate cutter-plates having teeth corresponding respectively to the two sets of guards, said guard-plate and cutter-plates being adapted to be rotated to bring either of the cutter-plates into operative position of means for locking the guard-plate with the desired cutter-plate in operative position and means for actuating the cutter-plate which is in operative position, while leaving the other cutter-plate stationary.
2. The combination with a guard-plate having a set of guards 2 for making a relatively short cut and a set of guards 3 for making a relatively long cut, a cutter-platehavingeutting-teeth corresponding with guards 2 and another cutter-plate havin g cutting-teeth corresponding with guards 3, said guard-plate and cutter-plates being adapted to be rotated to bring either of the cutter-plates into operative position of means for locking the guard-plate in position so that the desired set of guards and the corresponding cutter-plate will be in operative position and means for actuating the cutter-plate in operative position without moving the other cutter-plate.
The combination with a guard-plate having guards 2 and 3, acutter-plate having cutting-teeth corresponding with guards 2 and a cutter-plate having cutting-teeth corresponding with guards 3, each of said cutter-plates being provided with ashank having a recess 17, said guard-plate and cutter-plates being adapted to be rotated to bring either of the cutter-plates into operative position, of a movable handle having an arm 16 which is adapted to enter the recess 17 in either of the cutter-plates without contact with the other cutter-plate and adapted to independently actuate one of said cutter-plates and means for locking the guard-plate and cutter-plates in position so that either cutter-plate will be operative.
4;. The combination with a guard-plate having guards 2 and 3, a cutter-plate having cutting-teeth corresponding with guards 2 and a cutter-plate having cutting-teeth correspond ing with guards 3, each of said cutter-plates being provided with a shank having a recess 17, of a movable handle having an arm 16 which is adapted to engage the recess 17 in either of the cutter-plates without contact with the other cutter-plate, the outer face of said arm being an arc of a circle having its center at the center of the double recess formed by the two recesses 17 when in alinement so that when the guard-plate is given a half-turn arm 16 will pass from one recess 17 into the other recess 17 without moving either cutter-plate.
5. In a clipper the combination with the guard-plate, the cutter-plates having shoulders 3]. and the top plate having flanges which which passes through the hole and is provided with a flange lying on the under side of the top plate and a thread at its upper end, an outer sleeve and a nut 26 which engages the thread on the inner sleeve so that the flange on the inner sleeve is clamped against the under side of the top plate and the outer sleeve is pressed down upon the top plate thereby locking both sleeves to the top plate.
7. In a clipper the combination with the fixed and movable handles, of a spring 29lying between the handles one end of said spring being seated in a socket in one of the handles and the other end being threaded and passing entirely through the other handle and a nut engaging said thread and bearing on the inner side of the handle whereby the tension of the spring may be adjusted.
In testimony whereof I affix my signature in presence of two Witnesses.
THOMAS P. DONNELLY.
A. M. WOOSTER, S. V. RICHARDSON.