GB448052A - Improvements in or relating to callipers - Google Patents
Improvements in or relating to callipersInfo
- Publication number
- GB448052A GB448052A GB26235A GB26235A GB448052A GB 448052 A GB448052 A GB 448052A GB 26235 A GB26235 A GB 26235A GB 26235 A GB26235 A GB 26235A GB 448052 A GB448052 A GB 448052A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- legs
- casing
- pin
- scale
- 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
- G01B3/16—Compasses, i.e. with a pair of pivoted arms
- G01B3/166—Compasses, i.e. with a pair of pivoted arms provided with a measuring scale
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
448,052. Linear - dimension gauges. COMLEY, R. J., Knelston, Robert Street, Manselton, Swansea. Jan. 3, 1935, No. 262. [Class 106 (ii)] A double-reading callipers comprises two legs, two scales and two pointers, one being adapted to be set by moving the legs bodily by hand relatively to a fixed casing, whilst the other is automatically movable in conformity with the movements of a calliper leg. Two legs b, c, with ball contact members f are hinged together at d, the hinge being surrounded by a spring e. The casing a is centrally slotted to receive an extension g of the hinge pin d. This member g is movable in the slot h and carries a pointer j moving over a scale k on the casing. Means are provided for clamping the pointer at any reading. The casing also contains a distance pin l which prevents the legs coming together under the influence of a spring l<1>. The pin l also serves as a pivot for a pointer m adapted to move over a scale n with a central zero on either side of which are readings expressed as percentages above and below the figure for which the pointer j has been set. In use, the pointer j is set at the nominal thickness to be measured. The legs are now separated by means of the push rod p and then applied to the tube to be measured, being allowed to engage the work under the action of spring l<1>. An abutment o on the pointer m engages the leg c and the pointer takes part in the movement. In a modification, a pin is provided on the push rod to prevent the legs from coming together, and the rod is provided with a knife edge to engage the upper end of the pointer. The scale k is also arranged on one of the logs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26235A GB448052A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to callipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26235A GB448052A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to callipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB448052A true GB448052A (en) | 1936-06-02 |
Family
ID=9701257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26235A Expired GB448052A (en) | 1935-01-03 | 1935-01-03 | Improvements in or relating to callipers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB448052A (en) |
-
1935
- 1935-01-03 GB GB26235A patent/GB448052A/en not_active Expired
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