US3688412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Square gage
Assignee: Individual
•
Filing: 1970-08-31
•
Granted: 1972-09-05
•
Expires: 1990-08-31
Abstract
Abstract This disclosure relates to a toolmaker''s square gage or try square and is adapted to indicate the deviation from square of two surfaces of a part. The square gage includes a horizontal beam having a fulcrum point or edge adjacent one end, a fixed upwardly extending gage post secured to the beam, in fixed relation, and a feeler gage secured to the beam, spaced from the post. The gage includes a gage feeler or plunger which engages the supporting surface of the gage and a dial indicator which indicates the linear movement of the feeler; such that the gage reading is proportional to the angle of inclination of the gage post, as it is tilted to engage the part, relative to a predetermined standard.
Inventors
- 👤 William E Keener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:01
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/24; G01B5/245
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
225 words
A square gage adapted to indicate the deviation from square of two surfaces of a part, comprising: a horizontal beam portion adapted to overlie the supporting surface for the gage, a gage post portion extending upwardly at an angle slightly less than vertical from one end of said beam portion and fixed relative thereto, said gage post having a generally vertically extending contact edge opposite said beam portion and extending outwardly from the end there of said beam portion supported on two spaced downwardly extending fulcrum points in a horizontal axis of said gage post portion spaced on opposite sides of said gauge post, such that said gage post portion may be tilted about said fulcrum points to engage the vertical surface of the part to be checked, and a gage means having a spring biased gage feeler extending downwardly from said beam portion, spaced a predetermined distance from said fulcrum points and said beam end, said feeler adapted to operably engage the supporting surface, said gage means having an indicator operably connected to said gage feeler, such that the angle of inclination of said gage post portion, relative to a predetermined standard, is indicated by tilting said gage post portion against the vertical surface of the part to be measured, about said fulcrum points, and comparing the gage indicator reading with a predetermined standard.
Claim 2
Dependent Claim
225 words
A square gage adapted to indicate the deviation from square of two surfaces of a part, comprising: a horizontal beam portion adapted to overlie the supporting surface for the gage, a gage post portion extending upwardly at an angle slightly less than vertical from one end of said beam portion and fixed relative thereto, said gage post having a generally vertically extending contact edge opposite said beam portion and extending outwardly from the end there of said beam portion supported on two spaced downwardly extending fulcrum points in a horizontal axis of said gage post portion spaced on opposite sides of said gauge post, such that said gage post portion may be tilted about said fulcrum points to engage the vertical surface of the part to be checked, and a gage means having a spring biased gage feeler extending downwardly from said beam portion, spaced a predetermined distance from said fulcrum points and said beam end, said feeler adapted to operably engage the supporting surface, said gage means having an indicator operably connected to said gage feeler, such that the angle of inclination of said gage post portion, relative to a predetermined standard, is indicated by tilting said gage post portion against the vertical surface of the part to be measured, about said fulcrum points, and comparing the gage indicator reading with a predetermined standard.
Claim 3
Dependent Claim
41 words
The square gage defined in claim 1, characterized in that said gage post portion is cylindrical, such that said vertical edge is a vertically extending tangent of said cylindrical post portion, providing an edge contact with the surface to be checked.
Claim 4
Dependent Claim
56 words
The square gage defined in claim 1, characterized in that said horizontal beam portion includes at least one downwardly extending rocker post, adjacent said gage post portion, adapted to engage the supporting surface and providing said fulcrum point about which the post portion may be tilted to contact the surface of the part to be checked.
Claim 5
Dependent Claim
22 words
The square gage defined in claim 3, characterized in that said horizontal beam is a beam block having two spaced rocker posts.
Claim 6
Dependent Claim
208 words
A square gage adapted to indicate the deviation from square of two surfaces of a part on a supporting surface, comprising: a horizontal beam member adapted to overlie the supporting surface having two spaced projecting fulcrum points adjacent one end, a cylindrical gage post, rigidly secured to said horizontal beam member at said one end, beTween said fulcrum points said gauge post having a vertical contact surface spaced outwardly from said one end, the longitudinal axis of said gage post intersecting the line defined between said fulcrum points, said gage post extending upwardly at slightly less than a right angle relative to said beam member and adapted to be tilted, about said fulcrum points, to engage a surface of the part to be checked by said contact surface and a gage means secured to said beam member, spaced inwardly from said gage post and said fulcrum points, having gage feeler means spring biased downwardly from said horizontal beam member spaced a predetermined distance from said gage post and adapted to engage the supporting surface, said gage means having an indicator operably connected to said gage feeler means, such that the angle of inclination of said gage post, relative to a predetermined standard, is indicated by said gage means.
Claim 7
Dependent Claim
208 words
A square gage adapted to indicate the deviation from square of two surfaces of a part on a supporting surface, comprising: a horizontal beam member adapted to overlie the supporting surface having two spaced projecting fulcrum points adjacent one end, a cylindrical gage post, rigidly secured to said horizontal beam member at said one end, beTween said fulcrum points said gauge post having a vertical contact surface spaced outwardly from said one end, the longitudinal axis of said gage post intersecting the line defined between said fulcrum points, said gage post extending upwardly at slightly less than a right angle relative to said beam member and adapted to be tilted, about said fulcrum points, to engage a surface of the part to be checked by said contact surface and a gage means secured to said beam member, spaced inwardly from said gage post and said fulcrum points, having gage feeler means spring biased downwardly from said horizontal beam member spaced a predetermined distance from said gage post and adapted to engage the supporting surface, said gage means having an indicator operably connected to said gage feeler means, such that the angle of inclination of said gage post, relative to a predetermined standard, is indicated by said gage means.
Claim 8
Dependent Claim
35 words
The square gage defined in claim 5, characterized in that said beam member includes a support post, adjacent said gage feeler means, shorter in length than said projecting fulcrum points and protecting said feeler means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |