US343713A

US343713A - Simon kinney

Info

Publication number: US343713A
Authority: US
Publication date: 1886-06-15
Anticipated expiration: 1903-06-15

Description

s. KINNEY.

SAW TOOTH.

PatentedJune 15, 1886.

(No Model.)

NiTiEn Srarns ATENT much.

SIMON KINNEY, OF BROWNSVILLE, CALIFORNIA, ASSIGNOB OF ONE-HALF TO S. H. PRATT, OF SAME PLACE.

SAW-TOOTH.

' SPECIFICATION forming part of Letters Patent No. 343,713, dated June 15, 1886.

Application filed October 1, 1885. Serial No. 178,769. (No model.)

To all whom it may concern: enlargement at the bottom of the socket when Be it known that I, SIMON KINNEY, of the bit is in position. Brownsville, Yuba county, State of Oalifor- Thebit is made narrowest between the 55 nia, have invented an Improvement in Sawpoints a a in a line extending across below 5 Bits; and I hereby declarethe following to the shoulder O, and it is made widest at the be a full, clear, and exact description of the point extending across in line from G to the same. front of the bit.-

My invention relates to a bit or cutter to When this bit is introduced in the socket 60 be used in circular saws; and it consists ofa in the sawplate which corresponds to its 1o curved bit having its front and rear grooved shape, it will be manifest that the lower end to fit corresponding tongues in the socket f the tongue or elastic portion F will be of the saw-plate into which it fits, the bit compressed so as to nearly or quite close the having a slot made longitudinally in it from slot D, and thus allow the bit to slip 65 the base outward, so that one side forms an the socket. which is narrower at the top than I 5 elastic tongue. The base or inner portion of it is at the bottom. The bit may then be the bit is wider than the outer portion, and pushed in until it reaches the bottom of thewhen introduced into the slot or channel in socket, and the enlargement II will spring the saw-plate the elastic tongue allows it to be outward into the corresponding space made 70 compressed until it reaches its final position, to receive it, and will thus lock the bit firmly when an enlargement or catch at the lower in place and prevent it from coming out. end falls into a corresponding place in the By this construction I am enabled to place socket of the saw-plate and looks it firmly. more bits in the saw-plate than by any other Referring to the accompanying drawing means.. The throat for the escape of the saw- 75 for a more complete explanation of my invendust is a natural one, and is the greatest and tion, the figure is a View showing asection of most perfect that can be given.

a saw-plate with my bit. The points of the bits are presented to the A is the point of the bit or cutter, and from wood at a greater angle than by any other this point the back B extends nearly or quite style of construction, and thus provide an 80 in line with the curved portion of the saweasy-cutting edge.

plate within which the socket is formed to Having thus described my invention, what receive the bit. From the rear of the back I claim as new, and desire to secure by Letters portion the bit is formed at right angles, or Patent, isnearly so, with thisportion, thus providing a A saw-bit formed with curved or circular 85 shoulder, O, which rests against the correlines,with a cutting-point and shoulder at the spondingly-formcd part of the saw-plate at rear end of the back to fit a corresponding this point. portion of the saw-plate, the bit being made The front and rear edges of the bit are narrowest at the base of this shoulder, and formed in circular curves, and the baseis also enlarging from this point toward the inner 0 formed in a circular curve, as shown. end, in combination with an elastic tongue This bit has a channel or groove formed formed by slotting said bit from the base toupon its front and rear, so as to fit a correward the point, said elastic tongue tapering spending V-shaped tongue, which is formed and decreasing in thickness toward its end, in the socket of the saw-plate, so that when and provided with a locking projection or 5 the bit is in place it will notslip to either catch to fit a corresponding socket and openside. ings in the saw-plate, substantially as herein A slot, D, is made longitudinally. extenddescribed. ing from an enlargement or hole, E, in the In witness whereof I have hereunto set my bit down to the base, so as to form an elastic hand.

tongue, F, which is widest at the hole E, and SIMON KINNEY. 5c decreases in width to the point G near its WVitnesses:

lower end. From this point an enlargement HARMON A. PHEL'IS, is made at H, which fits into a corresponding JOHN SOHRODER.

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