GB660514A - Improvements in combination square and bevel tools - Google Patents
Improvements in combination square and bevel toolsInfo
- Publication number
- GB660514A GB660514A GB20182/49A GB2018249A GB660514A GB 660514 A GB660514 A GB 660514A GB 20182/49 A GB20182/49 A GB 20182/49A GB 2018249 A GB2018249 A GB 2018249A GB 660514 A GB660514 A GB 660514A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stock
- bolt
- bevel
- bevel member
- ruler
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
660,514. Protractors. GORTON, V. Aug. 3,. 1949 [Aug. 24, 1948], No. 20182/49. Class 97 (iii). A combination square and bevel comprises a stock 3 formed at one end to engage slidably a graduated ruler 6 and a bevel member 14 pivoted to the stock by a bolt 19 and having a curved edge protractor portion 15 whose graduations are read against an index 28 on the stock and also having a set-square portion with two straight adjacent edges 26, 27 at rightangles to each other. The stock is provided with means for locking it to the ruler 6 comprising, for example, a bolt 10 whose upper end is shaped as a catch to engage in a groove in the ruler, a finger nut 13, accessible through an opening 12 in the stock, being provided to operate the bolt. Preferably the bevel member 14 comprises two pairs of plates fitted one on either side of the stock 3 and pivoted on the common pivot 19, each plate being provided with an arcuate slot 23 concentric with the pivot through which passes a bolt 24 carrying a locking nut 25 for securing the bevel member in any desired setting. The bevel member may be fitted with one or more spirit levels 21 and may carry tables relating to rafter cut data. An adjustable stop-screw 29 fitted on the lower portion of the stock 3 limits the travel of the bevel member towards the stock.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU660514X | 1948-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB660514A true GB660514A (en) | 1951-11-07 |
Family
ID=3750676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20182/49A Expired GB660514A (en) | 1948-08-24 | 1949-08-03 | Improvements in combination square and bevel tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB660514A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2728990A (en) * | 1953-03-06 | 1956-01-03 | Loren E Murch | Degree marking addition to a carpenter's combination square |
EP0120101A1 (en) * | 1983-03-23 | 1984-10-03 | ALFER aluminium-fertigbau GmbH | Back square |
-
1949
- 1949-08-03 GB GB20182/49A patent/GB660514A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2728990A (en) * | 1953-03-06 | 1956-01-03 | Loren E Murch | Degree marking addition to a carpenter's combination square |
EP0120101A1 (en) * | 1983-03-23 | 1984-10-03 | ALFER aluminium-fertigbau GmbH | Back square |
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