US125763A - Improvement in implements for ruling slates - Google Patents

Improvement in implements for ruling slates Download PDF

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Publication number
US125763A
US125763A US125763DA US125763A US 125763 A US125763 A US 125763A US 125763D A US125763D A US 125763DA US 125763 A US125763 A US 125763A
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Prior art keywords
ruling
slates
implements
improvement
slate
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H7/00—Marking-out or setting-out work
    • B25H7/04—Devices, e.g. scribers, for marking

Definitions

  • This invention relates to a device for ruling either single or double parallel lines upon a slate for the purpose of guiding professionals in their writing exercises.
  • A represents a wooden handle or socket having inserted in its edge strips B C of India rubber or other suitable flexible material. Embedded in these rubber strips is a number of small metallic rings or staples, D E, which project some distance beyond the edges of said strips.
  • the staples I) are for the purpose of drawing single parallel lines, while the ones E are arranged in pairs, so as to make double parallel lines.
  • the strips B and O are notched, as at b c, in order to increase their ilexibility, and, by so doing, to insure each of the staples being brought in contact with the surface of the slate.
  • the device can be arranged in a different manner than is here represented and, if preferred, the single and double markers can be attached to separate handles, and a greater number of them can be employed.
  • one of the upper staples . is brought to bear against the inner edge of the frame, and, by drawing the implement across the surface of the slate, the other staples will mark the slate with parallel lines.
  • the handle may be of horn, vulcanite, or metal, and may be of the same material and in one piece with the strip, the requisite rigidity being obtained by greater thickness or otherwise.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Particle Accelerators (AREA)
  • Baking, Grill, Roasting (AREA)

Description

F. SO'EHNEH Implement for Ruling Slates.
UNITED STATES PATENT GEETOE.
FERDINAND SOEHNER, OF HAMILTON, OHIO.
Specification forming part of Letters Patent No. 125,763, dated April 16, 1872.
I, FERDINAND 'SoEHNEm of Hamilton, Butler county, Ohio, have invented a new and useful Slate-Ruler, of which the following is a specioation, reference being had to the annexed drawing.
This invention relates to a device for ruling either single or double parallel lines upon a slate for the purpose of guiding scholars in their writing exercises.
A represents a wooden handle or socket having inserted in its edge strips B C of India rubber or other suitable flexible material. Embedded in these rubber strips is a number of small metallic rings or staples, D E, which project some distance beyond the edges of said strips. The staples I) are for the purpose of drawing single parallel lines, while the ones E are arranged in pairs, so as to make double parallel lines. The strips B and O are notched, as at b c, in order to increase their ilexibility, and, by so doing, to insure each of the staples being brought in contact with the surface of the slate.
It is evident that the device can be arranged in a different manner than is here represented and, if preferred, the single and double markers can be attached to separate handles, and a greater number of them can be employed.
In using the device one of the upper staples .is brought to bear against the inner edge of the frame, and, by drawing the implement across the surface of the slate, the other staples will mark the slate with parallel lines.
rial, may be left unnotched. The handle may be of horn, vulcanite, or metal, and may be of the same material and in one piece with the strip, the requisite rigidity being obtained by greater thickness or otherwise.
Claim.
I claim as my invention- The slate-ruler, substantially as herein shown and described, eomprisin g a rigid back or handle, A, having one or more ilexible strips, B C, armed with markers D E, whether said strips be notched or indented, as shown at b c, or otherwise.
In testimony of which invention I hereunto set'my hand.
FERDINAND SOEHNER.
Witnesses Vieron SoHwEGLER, LEwIs C, HEYE.
US125763D Improvement in implements for ruling slates Expired - Lifetime US125763A (en)

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US125763A true US125763A (en) 1872-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060156557A1 (en) * 2005-01-19 2006-07-20 Carmen Lira-Nunez Writing guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060156557A1 (en) * 2005-01-19 2006-07-20 Carmen Lira-Nunez Writing guide
US7137206B2 (en) * 2005-01-19 2006-11-21 The Antioch Company Writing guide

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