US1398111A - Shears - Google Patents

Description

E. ONEIL 'sHEARs.

APPLICATION FILED JULY 9, 1920.

Patented Nov. 22, 1921.

EdzrardOZ ka' ATTORNIY EDWARD OITIE'IIIJ,v OF WAKEFIELD, MICHIGAN.

SHEARS.

Specification of Letters Patent.

Patented Nov. 22, 1921.

Application filed July 9, 1920. Serial No. 395,043.

To all whom if may concern:

Be it known that I, EDWARD ONEIL, a citizen of the United States, residing at Wakefield, in the county of Gogebic and State of lilichigan, have invented new and useful Improvements in Shears, of which the following is a specification.

This invention has reference to a tracing .wheel for the use of tailors, dressmakers, etc.

The primary object is to house a tracing wheel in the blade of ashears so that the same will be wholly concealed when not required for use but which may be swung at a right angle and sustained 1n such position when desired for use.

A further object is the production of a tracing wheel that is mounted on a shank having a head at one end thereof, the latter having two right-angular surfaces, and the said head having its end provided with projecting trunnions that are engagedby hooks on the bifurcated end of a spring member. the latter exerting a tension thereagainst to hold the shank parallel therewith. when the tracing wheel is not required for use, and also exerting a tension against the said trunnions for holding one of the right-angular surfaces of the head in frictional engagement with the support therefor. for retaining the tracing wheel at right angles with respect to the said support.

he foregoing and other objects wh ch will appear as the nature of the invention is better understood, may be accomplished by a construction, combination, and operative arrangement of parts, such as is disclosed by the drawings.

In the drawings 2- Figure l is an elevation illustrating the improvement in applied position on the blade of a shears,

Fig. 2 is a greatly enlarged sectional view approximately on the line 22 of Fig. 1.

Fig. 3 is a transverse sectional view approximately on the line 3-3 of Fig. 2.

Fig. i is a perspective view of the wheel and the mount therefor, and

Fig. 5 is a similar view of the spring member which engages with the trunnions on the head of the wheel support or mount.

As the tracing wheel is employed as a marking device by tailors, dressmakers etc., it is particularly desirable that the same be employed in connection with the shears used by the tailor or dressmaker, so, in the drawings, I have illustrated the improvement in connection with the blade of a pair of shears. It is, of (:Olll'SO, obvious that the improvement may be used in other connections. and therefore I will refer to the shear blade as a support and have indicated the same by the numeral 1. The support 1, 0n the outer face thereof is provided with a depression that forms a pocket 2. The pocket is shaped to snugly receive therein the wheel, its mount, and the spring retaining means for the mount. The mount includes a shank 3 having one of its ends bifurcated, as at l, to receive therebetween the tracing wheel 5 which is pivotally connected thereto. The opposite end of the shank is formed with an enlargement in the nature of a head 6. The head has two of its faces provided with straight right-angularly arranged surfaces 7 and 8 respectively, the remaining surfaces being rounded. The straight ends of the head are formed with outstanding elements in the nature of crosssectionally rounded trunnions 9.

In the pocket is a flat spring member 10. The body of the member 10 is provided with a single opening that registers with a threaded opening in the support 1, and through this opening there is passed a screw 11 that has its head 12 kerfed, as at 13. It will be apparent that by adjusting the screw the tension of the spring 10 may be likewise adjusted. The spring 10 has one of its ends bifurcated and the side mem bers provided by the bifurcation formed with hooks 14. These hooks are designed to receive and to exert a frictional contact against the trunnions 9 of the head portion of the wheel mount. The hooks, when the tracing wheel is in inactive position and arranged in the pocket, will exert a pressure against the flat face 8 of the head, holding the said wheel in the pocket. When the wheel is swung to a right angle with respect to its support, outward of the pocket, the flat or straight face 7 will contact with the inner straight wall of the pocket and will be retained in such contacting relation by the spring-influenced hooks 14. If. desired, the trunnions may be arranged slightly oil" of the center of the head so that the hooked ends of the spring will more effectively press thereagainst to hold the faces 7 or 8 in contact with the wall of the pocket of the support.

It is thought that the foregoing description, when taken in connection with the drawings, will fully and clearly set forth the construction and advantages thereof.

Having thus described the invention, what I claim is 1. A support, a mount, a tracing wheel pivoted thereto, said mount including a head that has two right-angular surfaces and which has its ends provided with trunnions, a flat spring having a bifurcated end formed with hooks that engage the trunnions, a securing element for the spring, and said element being adjustable-whereby to regulate the tension of the spring with respect to the engagement of the hooks thereof with the trunnions.

2. The combination with a support having a pocket on the outer face thereof; of

a tracing Wheel including a mount therefor,

said mount comprising a shank having a 20 bifurcated end in which the tracing wheel is pivoted, and a second end which is en larged and which extends laterally from the mount to provide a head, said head having right-angular straight surfaces and its ends provided with trunnions, a flat spring in one end of the pocket, an adjustable element securing the same therein, said spring having one of its ends bifurcated and the sides provided by the bifurcation formed with hooks which engage with the trunnions of the head of the wheel mount, as and for the purpose set forth.

In testimony whereof I affix my signature.

EDWARD ONEIL.

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