US1453900A - Ruler attachment - Google Patents

Ruler attachment Download PDF

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Publication number
US1453900A
US1453900A US464829A US46482921A US1453900A US 1453900 A US1453900 A US 1453900A US 464829 A US464829 A US 464829A US 46482921 A US46482921 A US 46482921A US 1453900 A US1453900 A US 1453900A
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US
United States
Prior art keywords
blade
ruler
tongue
envelope
ruler attachment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US464829A
Inventor
John J Ahearn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US464829A priority Critical patent/US1453900A/en
Application granted granted Critical
Publication of US1453900A publication Critical patent/US1453900A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B43L7/00—Straightedges

Definitions

  • Figure 1 is a general view of the implement.
  • Figure 2 is an edge view of the same.
  • Figure 3 is an end view.
  • the body portion 10 of the device constitutes a ruler having a graduated edge 11 extended at one end to form a tongue 12 of a width less than the body portion of the device, and attached to the body portion to project in a direction parallel with said terminal tongue and at a transverse interval therefrom is a blade 13 arranged within the lines of the side edges of the said body portion and substantially within the thickness thereof so that the outer cutting edge of the blade, while being exposed for use either in sharpening pencils or at its extremities for making erasures, is protected from such contact with adjacent objects as would be likely to injure either the blade or such other object.
  • the blade is transversely tilted or inclined as will Jae seen clearly by reference to Figures 2 and 3, with the back .or inner edge of the blade depressed slightly below the plane of the corresponding surface of the tongue 12 so that in using the blade as an envelope opener, the under side of the tongue will bear upon the surface 0t the envelope and will traverse the same as the cutting edge of the blade cuts thereuvelope, to act as a guide and minimize the tendency to tear the envelope and thereby mutilate the contents thereof.
  • the extreme end or point of the a blade projects slightly beyond the extremity of the tongue to facilitate the introduction of the same under the flap of the envelope or to puncture the same as may be preferred.
  • ruler attachment comprising a ruler body having a portion at one end cut away to provide atongue, a blade having its side edges and one end sharpened and its other end enlarged and offset and secured to the top face of the body with the portion of the blade having the cutting edges disposed within the cutout portion of the body, said blade lying within the sides of the body and transversely tilted to permit the tongue to engage an envelope while being cut by said 7 blade.

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  • Knives (AREA)

Description

May 1, 1923.
J. J. AHE ARN RULER ATTACHMENT Filed April 27, 1921 Patented May 1, 1923.
UHTED JOHN J. AHEARN, OF PALMER, NEW YORK.
nULEn ATTAGi-LVLENT.
Application filed April 27, 1921. Serial No. 464,829.
able for school and oifice use combining the utilities of a ruler, pencil sharpener, eraser, envelope opener and the like; and with these objects in View the invention consists in a construction and combination of parts .of which a preferred embodiment is shown in the drawing, wherein: A
Figure 1 is a general view of the implement. r Figure 2 is an edge view of the same. Figure 3 is an end view. The body portion 10 of the device constitutes a ruler having a graduated edge 11 extended at one end to form a tongue 12 of a width less than the body portion of the device, and attached to the body portion to project in a direction parallel with said terminal tongue and at a transverse interval therefrom is a blade 13 arranged within the lines of the side edges of the said body portion and substantially within the thickness thereof so that the outer cutting edge of the blade, while being exposed for use either in sharpening pencils or at its extremities for making erasures, is protected from such contact with adjacent objects as would be likely to injure either the blade or such other object.
Preferably the blade is transversely tilted or inclined as will Jae seen clearly by reference to Figures 2 and 3, with the back .or inner edge of the blade depressed slightly below the plane of the corresponding surface of the tongue 12 so that in using the blade as an envelope opener, the under side of the tongue will bear upon the surface 0t the envelope and will traverse the same as the cutting edge of the blade cuts thereuvelope, to act as a guide and minimize the tendency to tear the envelope and thereby mutilate the contents thereof. Also the extreme end or point of the a blade projects slightly beyond the extremity of the tongue to facilitate the introduction of the same under the flap of the envelope or to puncture the same as may be preferred.
Having thus described the invention, what I claim is 3- v A. ruler attachment comprising a ruler body having a portion at one end cut away to provide atongue, a blade having its side edges and one end sharpened and its other end enlarged and offset and secured to the top face of the body with the portion of the blade having the cutting edges disposed within the cutout portion of the body, said blade lying within the sides of the body and transversely tilted to permit the tongue to engage an envelope while being cut by said 7 blade.
In testimony whereof I anix my signature I in presence of two witnesses.
JOHN J AHEARNQ Witnesses Anion V. K. AHEARNy FRANK P. AHEARN.
US464829A 1921-04-27 1921-04-27 Ruler attachment Expired - Lifetime US1453900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US464829A US1453900A (en) 1921-04-27 1921-04-27 Ruler attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US464829A US1453900A (en) 1921-04-27 1921-04-27 Ruler attachment

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US1453900A true US1453900A (en) 1923-05-01

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US464829A Expired - Lifetime US1453900A (en) 1921-04-27 1921-04-27 Ruler attachment

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD261612S (en) 1979-03-02 1981-11-03 Walter Henkels Combined ruler and letter opener
USD1014300S1 (en) * 2021-08-19 2024-02-13 01 Inc. Drafting rule
USD1026691S1 (en) * 2021-09-28 2024-05-14 Cameron Chateauneuf Ergonomic ruler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD261612S (en) 1979-03-02 1981-11-03 Walter Henkels Combined ruler and letter opener
USD1014300S1 (en) * 2021-08-19 2024-02-13 01 Inc. Drafting rule
USD1026691S1 (en) * 2021-09-28 2024-05-14 Cameron Chateauneuf Ergonomic ruler

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