US325992A - Combination ruler and paper-cutter - Google Patents

Description

(Model.)

R. S. TRAIN.

COMBINATION RULBR AND PAPER GUTTER.

No` 325,992. Patented Sept. 8, 1885.

mme www `UNiTED STATES PATENT OEEicE.;

RICHARD S. THAIN, OF OAK PARK, ILLINOIS.

COMBINATION RULER AND PAPER-CUTTER.

SPECIFICATION forming part of Letters Patent N o. 325,992, dated September 8, 1885.

Application filed November 16. 1853.

T0 all whom, it may concern:

Be it known that I, Brennen S. THAIN, a.

citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented a new and Improved Gombination Ruler and Paper-Cutter, of which the following is a specification.

The purpose and object of my invention is to afford an improved double ruler, which is also a papercutter, and is capable of being used as a single or double measure.

I have illustrated my invention by the accompanying drawings, in which Fig. 1 is a plan View of my improved combination ruler and paper-cutter so spaced as to indicate agate and nonpareil measurement. Fig. 2 is a perspective of the same without indications of measurement. Fig. 3 is a cross-section of the same.

Like letters refer to like parts inthe several views.

A indicates the round or polygonal division of my combination ruler and paper-cutter. B indicates the blade division of the same. d

2 5 indicates the covered or convex portion of the blade.

My invention consists in a novel combination of a hat or convex and a round or polygonal ruler which unites the advantages and overcomes the defects in each, and which possesses the added requisites of a paper-cutter and papcr-tearer, besides being capable, when desired, of use as 'a single or as a double measure.

It consist-s of a strip of metal or other suitable material connected 'with a cylindrical or prismoidal ruler in the manner described in the claims, the two constituentparts of the double ruler being preferably formed from the same sheet of metal, and the cylindrical or prismoidal portion preferably hollow, for the purpose of diminishing the weight and to econo mize in material.

As it is highly desirableto enamel or otherwise cover or ornament at least the upper side of a ruler of this kind, I form the round portion or division of the same by bending or curving the metal in the manner or direction shown in Fig. 3, which causes one side of the metal to form the entire upper side of the double ruler, as otherwise if bent in the op- (Model.)

blade, acts to cause the ruler to remain in po- 6o sition better, and permits of greater accuracy in both ruling and measuring with the outer edge of the blade.

NVhen desired to use my improved device as a measure, marks and figures indicating scales of measurement can be placed upon the outer edge of the blade B, and also upon the outer or ruling side ofthe ruler A. Aspecial purpose to which I have adapted my combination ruler is as a double measure for printing and advertisements, one side being marked to indicate agate-type measurement, and the other to indicate nonpareil measurement.

Both the cylindrical or prismoidal division A and the blade B may be made of hard rubber, Celluloid, papier mache, ivory, or other suitable material, and the division A may be either hollow or solid, all of which forms or modications would come within the scope of my invention; but I prefer to use a construction of sheet metal, bent or curved in the special Vmanner shown in Fig. 3, both divisions A and B being formed from the same sheet, and so as to have the same side of the metal form the upper or outer side of each, thus requiring enameling or ornamentation on one side only.

This special construction from a continuous sheet of metal of both divisions of my improved ruler does not necessarily include the shaping of the blade so that the upper surface shall be convex, and whileI'prefer to thus form the blade, I do not wish to limit my in# vention to a convex blade, as the same may be made dat, if desired, without affecting or detracting from the most essential elements of my combination.

I prefer to have the diameter of division A about onehalf of an inch, so that the width of the combined ruler shall be about one and onehalf inch.

The forming of a combination ruler of this IOO description, from a continuous strip of sheet metal is readily accomplished by the use of machinery, and is a matter that would come within the skill of any mechanic of experience in sheet-metal manufacture.

It will be observed that the front and rear edges of the auxiliary blade B are in a plane below the central horizontal plane of the cylindrical or prismoidal portion A, the latter being developed outwardly from the rear edge of the blade. This construction, while calling for the enameling of only the upper surface of the ruler, permits the hand to readily grasp and move it by reason of the height of the portion A above the blade B.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

l. As an improved article of manufacture,

a combined ruler and paper-cutter consisting of a cylindrical or prismoidal portion and an auxiliary blade, the former being developed outwardly from the rear edge of the blade, and both edges of the blade being below the central horizontal plane of said cylindrical portion, substantially as shown and described.

2. As an improved article of manufacture, a combined ruler and papencutter consisting of a cylindrical or prismoidal portion and an auxiliary blade springing in arched or concave form from .below the central horizontal plane of said portion, substantially as shown and described.

RICHARD S. THAIN.

Witnesses,

FREDERICK C. GOODWIN, JEROME W. MILLINGTON.

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