GB2557650A - Caliper for measuring an outer diameter of a measuring object - Google Patents
Caliper for measuring an outer diameter of a measuring object Download PDFInfo
- Publication number
- GB2557650A GB2557650A GB1621245.8A GB201621245A GB2557650A GB 2557650 A GB2557650 A GB 2557650A GB 201621245 A GB201621245 A GB 201621245A GB 2557650 A GB2557650 A GB 2557650A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolling device
- caliper
- measuring
- fixed
- measuring object
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- 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
- G01B3/20—Slide gauges
- G01B3/205—Slide gauges provided with a counter for digital indication of the measured dimension
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A caliper (1) for measuring an outer diameter of a measuring object (2) comprises a fixed measuring arm (20) being firmly arranged at a rail (10) and a movable measuring arm (30) being movably arranged at the rail (10). The caliper (1) comprises a first and a second rolling device (50, 60), wherein the first rolling device (50) is arranged at the fixed measuring arm (20) and the second rolling device (60) is arranged at the movable measuring arm (30). The first and the second rolling device (50, 60) respectively comprise at least one roll (51a, 61a) being rotatably arranged at a respective rotating axis (52, 62) of the first and the second rolling device (50, 60). The at least one roll (51a, 61a) of the first and the second rolling device (50, 60) has a flat or round surface that rotates over a surface of the measuring object (2) clamped between the fixed and the movable measuring arm (20, 30).
Description
(71) Applicant(s):
Polimer Kauguk Sanayi ve Pazarlama A.S. Huzur Mahallesi, Imam Qesme Yolu Caddesi, Candan Sokak No: 3, Ayazaga-Sariyer, Istanbul, 34396, Turkey (72) Inventor(s):
Yalcin Ongoren Erhan Kabak Goksel Tokali Zafer Ulker Metin Arabacigil Ozgur Caliskan (74) Agent and/or Address for Service:
Eaton Industries Holding GmbH
Airport Center Schonefeld, Mittelstrasse 5-5a,
Schonefeld 12529, Germany (51) INT CL:
G01B 5/08 (2006.01) G01B 3/20 (2006.01) (56) Documents Cited:
GB 2020030 A CN 205403636 U
CN 201997545 U CN 201378032 Y
JPS58146801 (58) Field of Search:
INT CL G01B Other: EPODOC, WPI (54) Title of the Invention: Caliper for measuring an outer diameter of a measuring object Abstract Title: Caliper for measuring an outer diameter of a measuring object (57) A caliper (1) for measuring an outer diameter of a measuring object (2) comprises a fixed measuring arm (20) being firmly arranged at a rail (10) and a movable measuring arm (30) being movably arranged at the rail (10). The caliper (1) comprises a first and a second rolling device (50, 60), wherein the first rolling device (50) is arranged at the fixed measuring arm (20) and the second rolling device (60) is arranged at the movable measuring arm (30). The first and the second rolling device (50, 60) respectively comprise at least one roll (51a, 61a) being rotatably arranged at a respective rotating axis (52, 62) of the first and the second rolling device (50, 60). The at least one roll (51a, 61a) of the first and the second rolling device (50, 60) has a flat or round surface that rotates over a surface of the measuring object (2) clamped between the fixed and the movable measuring arm (20, 30).
Ί/3
FIG. Ί
2/3
FIG. 2
Description
CALIPER FOR MEASURING AN OUTER DIAMETER OF A MEASURING OBJECT
Technical Field
The disclosure relates to a caliper for measuring an outer diameter of a measuring object, in particular the outer diameter of a measuring object having a round body.
Background
Hoses are usually produced by means of an extrusion process. A melted polymer is formed by the extruder in the shape of a hollow tube that leaves an output opening of the extruder. Hydraulic hoses usually comprise a reinforcement layer that is embedded in a thermoplastic layer forming the outer sheath of the hydraulic hose. During manufacturing of hoses, especially of hydraulic hoses, it is necessary to control the diameter of the reinforcement layer as well as the outer diameter of the thermoplastic outer sheath.
A possibility for measuring the outer diameter of the reinforcement layer and the outer diameter of the thermoplastic layer of the outer sheath of the hose is to use a laser measurement system. The laser measurement system is an automatically working test device that measures the outer diameter of the reinforcement layer and the outer diameter of the outer sheath of a hose contactlessly. A drawback from an economical point of view is the high price of an automatic laser measurement system.
A cheaper method for measuring the outer diameter of the reinforcement layer and the outer sheath of a hose is to use a caliper. A conventional caliper usually comprises a fixed and a movable measuring arm. In order to measure the outer diameter of a measuring object, the measuring object has to be arranged between the fixed and the movable measuring arm, wherein the measuring arms are moved so that each of the arms is in contact with the outer surface of the measuring object.
The drawback of using a conventional caliper is the measurement accuracy, which is significantly lower in comparison to the use of a laser measurement system. Furthermore, the fixed and the movable measuring arm cause friction, especially if an outer diameter of an object has to be dynamically measured by moving the measuring object through the gap between the fixed and the movable measuring arm of the caliper, as it happens, for example, during the manufacturing of a hose that leaves an extruder and whose outer diameter has to be measured over the length of the hose. The sharp edges of the fixed and the movable measuring arms of the caliper may damage the measuring object visually, for example, the soft surface of a host product that just leaves the extruder. Since the measurement is performed frictionally, the measurement results show a large variation.
There is a need to provide a caliper for measuring an outer diameter of a measuring object, especially for dynamically measuring an outer diameter of the measuring object during the manufacturing of the measuring object, wherein the caliper provides accurate measurement results with a lower risk of damaging the object, when compared to a conventional caliper.
The proposed caliper for measuring an outer diameter of a measuring object is specified in claim 1.
The caliper comprises a rail, a fixed measuring arm and a movable measuring arm. The fixed measuring arm is firmly arranged at the rail and the movable measuring arm is movably arranged at the rail. The caliper comprises a first and a second rolling device. The first rolling device is arranged at the fixed measuring arm and the second rolling device is arranged at the movable measuring arm. The first and the second rolling device respectively comprise at least one roll being rotatably arranged at a respective rotating axis of the fixed and the movable measuring arm. The at least one roll of the first and the second rolling device has a flat or round surface that rotates over a surface of the measuring object that is clamped between the fixed and the movable measuring arm.
When the measuring object is placed between the fixed and the movable measuring arm, and the movable measuring arm is shifted towards the fixed measuring arm so that the measuring object is clamped between the two measuring arms, the at least one roll of the first rolling device and the at least one roll of the second rolling device touch the surface of the measuring object and can rotate along the surface. This is especially advantageous if a measuring object having a round outer diameter, such as an outer diameter of a reinforcement layer or an outer sheath layer of a hose, has to be dynamically measured during the manufacturing of the product. The at least one roll of the first rolling device and the at least one roll of the second rolling device rotate along the surface of the measuring object, especially when the hose leaves an extruder. The at least one roll of the first and the second rolling device have a low friction at the surface of the measuring object so that variations due to friction as caused by a conventional caliper can be eliminated and more sensitive measurements can be performed.
Shifting the movable measurement arm towards the fixed measurement arm may be supported by a force that is exerted on the movable measurement arm, for example by a spring that pushes the movable measurement arm towards the fixed measurement arm. The force will ensure that the movable arm is always in contact with the measuring object, for example when moving along the surface of the measuring object, especially when moving along the longitudinal direction of a hose.
According to an embodiment of the caliper, the caliper is configured for measuring a thickness profile of the measuring object. The movable measuring arm is configured to move so that the distance between the fixed and the movable measuring arm is changed, when the measuring object having a different outer diameter is moved through the gap between the fixed and the movable measuring arm or when the caliper is moved along outer diameter of the measuring object. The changing of the distance between the fixed and the movable measuring arm is evaluated and recorded to provide the thickness profile along the longitudinal direction of the measuring object.
Embodiments of the caliper are described in the following with reference to the accompanying drawings for explaining the configurations of the caliper in an illustrative manner.
Brief Description of the Drawings
Figure 1 shows an embodiment of a conventional caliper for measuring an outer diameter of a measuring object.
Figure 2 shows an embodiment of a caliper having low friction and high accuracy during a measurement process for measuring an outer diameter of a measuring object.
Figure 3 shows an embodiment of a rolling device to be mountable to the fixed and the movable measuring arm of the caliper.
Figure 1 shows a conventional caliper 1’ comprising a fixed measuring arm 20’ and a movable measuring arm 30’ that is slidably arranged at a rail 10’ by a sliding carriage 100’. In order to measure an outer diameter of a measuring object, for example a hose, the measuring object is placed between the fixed and the movable measuring arm 20’ and 30’. The distance between the fixed and the movable measuring arm is then indicated by a reading device 40’.
The conventional caliper as shown in Figure 1 works well if an outer diameter of a static object is measured. However, problems may arise if the outer diameter of a measuring object, for example a hydraulic hose, has to be dynamically measured. A hydraulic hose comprises a reinforcement layer that is embedded in a thermoplastic layer which is extruded around the reinforcement layer to provide a hollow tube. During the manufacturing process the outer diameter of the reinforcement layer as well as the outer diameter of the outer sheath of a thermoplastic material of the hydraulic hose has to be measured dynamically along the length of the hose, especially when the extruded material of the hose is pulled out of the extruder. For example, the outer diameter of the hose is measured continuously, or a sample measurement is taken at fixed distances or times, e.g. every 5 mm or every 10 ms. The outer diameter of the hose may also only be measured at more distant positions, such as every 20 cm, or at random positions. Between these measurement or sample positions the caliper will be moved along the hose.
A drawback of a conventional caliper is that the sharp edges of the fixed and the movable measuring arms may damage the material of the outer sleeve of the hose. During the dynamic measurement, the reinforcement layer or the outer sleeve of the hose slide along the measuring arms of the caliper. The high friction between the surface of the measuring arms and the surface of the measuring object makes a dynamic measurement difficult and causes variations of the measured values of the outer diameter of the measuring object. As a consequence, the use of a conventional caliper often provides inaccurate measurement results.
Figure 2 shows an embodiment of an improved caliper 1 for measuring an outer diameter of a measuring object. The caliper 1 is especially configured for dynamically measuring an outer diameter of a round body of a measuring object 2.
The caliper 1 comprises a rail 10 on which a measurement scale may be arranged.
The caliper further comprises a fixed measuring arm 20 being firmly arranged atthe rail 10 and a movable measuring arm 30 being movably arranged at the rail 10. The movable measuring arm 30 may be arranged at a sliding carriage 100. The caliper further comprises a reading device 40 for reading the distance between the fixed measuring arm 20 and the movable measuring arm 30. In contrast to the conventional caliper T, the improved caliper 1 comprises a first rolling device 50 and a second rolling device 60. The first rolling device 50 is arranged at the fixed measuring arm 20 and the second rolling device 60 is arranged at the movable measuring arm 30.
The first rolling device 50 comprise at least one roll 51a being rotatably arranged at a rotating axis 52 of the first rolling device 50. The second rolling device 60 comprise at least one roll 61a being rotatably arranged at a rotating axis 62 of the second rolling device 60. The at least one roll 51a of the first rolling device 50 and the at least one roll 61a of the second rolling device 60 rotates at a surface of the measuring object 2, when the measuring object 2 is clamped between the fixed and the movable measuring arm 20 and 30, as shown in Figure 2.
A measuring object, for example a hose, may be clamped between the fixed and the movable measuring arm 20, 30 to measure the outer diameter of the hose. The at least one roll 51a, 61a of the first and the second rolling device 50, 60 has a flat or round surface that rotates over a surface of the measuring object 2 clamped between the fixed and the movable measuring arm 20, 30. The at least one roll 51a and 61a slide over the surface of the measuring object 2 with a lower friction than if the measurement is performed by the conventional caliper T. The use of the caliper 1 allows that the surface of the hose is not damaged, because the respective contacting surface of the at least one roll 51a and 61a of the first and second rolling device 50 and 60 does not have a sharp edge.
The at least one roll 51a and 61a of the first and the second rolling device 50, 60 can be made of a metallic or plastic material. The use of a metallic or plastic material for the at least one roll 51a, 61a of the first and second rolling device enables a low friction when the at least one roll 51a, 61a rotates along the surface of a measuring object 2 that is moved through the gap between the fixed and the movable measuring arm 20 and 30.
As shown in Figure 2, the at least one roll 51a, 61a of the first and the second rolling device 50, 60 are arranged at the fixed and the movable measuring arm 20, 30 directly opposite to each other. When the movable measuring arm 30 is moved close to the fixed measuring arm 20, the at least one roll 51a of the first rolling device 50 comes in contact with the at least one roll 61a of the second rolling device 60.
The rotating axis 52 of the first rolling device 50 is arranged parallel to the rotating axis 62 of the second rolling device 60. The first rolling device 50 is arranged on the fixed measuring arm 20 and the second rolling device 60 is arranged on the movable measuring arm 30 so that the rotating axis 52 of the first rolling device 50 and the rotating axis 62 of the second rolling device 60 are arranged perpendicularly to the longitudinal axis of the rail 10.
According to the illustrated embodiment of the caliper 1 of Figure 2, the first and the second rolling device 50 and 60 respectively comprise a plurality of rolls 51a,..., 51n and 61a,..., 61n. The rolls 51a,...., 51n of the first rolling device 50 are arranged in a stacked configuration around the rotating axis 51 of the first rolling device 50. The rolls 61a,..., 61n of the second rolling device 60 are arranged in a stacked configuration around the rotating axis 62 of the second rolling device 60.
Each of the rolls 51a,..., 51n of the first rolling device 50 is concentrically and rotatably arranged around the rotating axis 52 of the first rolling device 50. In the same way, each of the rolls 61a, ..., 61n of the second rolling device 60 is concentrically and rotatably arranged around the rotating axis 62 of the second rolling device 60. The use of a plurality of rolls instead of using a single roll at each measuring arm 20, 30 allows to contact the surface of a measuring object with a lower frictional resistance so that the accuracy of the measurement can be increased.
According to an embodiment of the caliper 1, the first and the second rolling device 50, 60 may be configured to be mountable to and demountable from the fixed and the movable measuring arm 20, 30. Figure 3 shows one of the first and the second rolling devices 50, 60. The rolling device 50, 60 comprises a body 53, 63 having a first body portion 53a, 63a and a second body portion 53b, 63b. The first body portion 53a, 63a comprises the rotating axis 52, 62 around at least one roll is rotatably arranged. Figure 3 shows an embodiment of the first and the second rolling device 50, 60 comprises a plurality of rolls 51a, ..., 51n or 61a,..., 61n.
The second body portion 53b, 63b of the first and the second body portion comprises a cavity 54, 64 being configured such that the fixed and the movable measuring arm
20, 30 of the caliper may be inserted in the cavity to mount the first and the second
- 8 rolling device 50, 60 the fixed and the movable measuring arm 20, 30 of the caliper. The body portion 53b, 63b of the first and the second rolling device 50, 60 may comprise a groove 55, 65. The cavity 54, 64 is formed by mounting a lid element 56, 66 on the body portion 53a, 63a. The lid element 56, 66 may be fixed to the body portion 53b, 63b by fixing elements 57, 67, for example screws. In the mounted configuration the first and the second rolling device 50, 60 can be fixed to the fixed and the movable measuring arm 20, 30 by clamping the fixed and the movable measuring arm 20, 30 in the cavity 54, 64 of the first and the second rolling device 50, 60.
The caliper 1 may be configured as a digital device, wherein the reading device 40 is configured as a digital display to indicate the distance between the fixed and the movable measuring arm 20 and 30. The caliper 10 may also be configured as an analog device, wherein the reading device 40 is configured as a conventional nonius that is arranged at the carriage 100.
The caliper 1 comprising the rolling devices 50 and 60 at the fixed and the movable measuring arm 20 and 30 allows to measure an outer diameter of a round body of a measuring object. In the case of measuring a hydraulic hose, the caliper 1 may be used to measure the outer diameter of the reinforcement layer and the outer diameter of the outer thermoplastic sheath of the hose. The caliper 10 provides a high measurement accuracy due to the low friction between the surface of the at least one roll 51a, 61a of the rolling devices 50, 60 and the surface of the measuring object 2. Furthermore, the measurement may be performed without the danger of damaging a sensitive surface of a measuring object, such as a surface of an outer sheath of a hose that comes out of an extruder.
The caliper 1 may be used to dynamically measure a thickness profile of measurement object. In particular, the caliper 1 may be configured to provide a thickness profile of the measuring object 2 along a longitudinal direction of the measuring object 2, when the measuring object 2 is moved in the longitudinal direction between the fixed and the movable measuring arm 20 and 30 of the caliper
1, or when the caliper 1 is moved in the longitudinal direction of the measuring object 2 along the length of the measuring object 2.
The caliper 1 may comprise a sensor device 70 to measure the distance between the 5 fixed and the movable measuring arm 20 and 30. The caliper 1 may further comprise an evaluation device 80 to assign the detected distance between the fixed and the movable measuring arm 20 and 30 to a longitudinal position of the measuring object 2 to provide the thickness profile of the measuring object 2. The longitudinal position of the measuring object can be determined in dependence on the rotation of the at least one roll 51a, 61a of the rolling devices 50, 60. The thickness profile of a measuring object may be determined, when the measuring object 2 is moved in the longitudinal direction between the fixed and the movable measuring arm 20, 30 of the caliper 1, or when the caliper 1 is moved in the longitudinal direction of the measuring object 2 along the longitudinal direction of the measuring object.
According to another embodiment, the caliper 1 may comprise a storage device 90 to store the thickness profile of the measuring object 2 by storing the detected distance between the fixed and the movable measuring arm 20 and 30 assigned to a respective longitudinal position of the measuring object. The caliper 1 may further comprise an
0 output port 110 to read the recorded thickness profile of the measuring object 2 out of the storage device 90. The outer port 110 may, for example, be configured as a USB port. Further, the output port may also comprise a wireless transmitter to transmit the measurements or the thickness profile to an external wireless receiver, for example a receiver in a computer or computing device.
List of Reference Signs
| 1,1’ | caliper |
| 10,10’ | rail |
| 5 20,20’ | fixed measuring arm |
| 30, 30’ | movable measuring arm |
| 40, 40’ | reading device |
| 50 | first rolling device |
| 60 | second rolling device’ |
| 10 70 | sensor |
| 80 | evaluation device |
| 90 | storage device |
| 100 | sliding carriage |
| 110 | output port |
| 15 51a,..., 51n | rolls of the first rolling device |
| 52 | rotating axis of first rolling device |
| 61a,..., 61n | rolls of the second rolling device |
| 62 | rotating axis of second rolling device |
Claims (13)
1. A caliper for measuring an outer diameter of a measuring object, comprising:
- a rail (10),
- a fixed measuring arm (20) being firmly arranged at the rail (10),
- a movable measuring arm (30) being movably arranged at the rail (10),
- a first and a second rolling device (50, 60), wherein the first rolling device (50) is arranged at the fixed measuring arm (20) and the second rolling device (60) is arranged at the movable measuring arm (30),
- wherein the first and the second rolling device (50, 60) respectively comprise at least one roll (51a, 61a) being rotatably arranged at a respective rotating axis (52, 62) of the first rolling device and the second rolling device (50, 60),
- wherein the at least one roll (51a, 61a) of the first and the second rolling device (50, 60) has a flat or round surface that rotates over a surface of the measuring object clamped between the fixed and the movable measuring arm (20, 30).
2. The caliper of claim 1, wherein the at least one roll (51a) of the first rolling device (50) and the at least one roll (61a) the second rolling device (60) are arranged at the fixed and the movable measuring arm (20, 30) directly opposite to each other.
3. The caliper of claims 1 or 2, wherein the first and the second rolling device (50, 60) are arranged at the fixed and the movable measuring arm (20, 30) so that the at least one roll (51a, 61a) of the first and the second rolling device (50, 60) are in contact with each other, when the movable measuring arm (30) is moved close to the fixed measuring arm (20).
4. The caliper as claimed in claims 1 to 3, wherein the respective at least one roll (51a, 61a) of the first and the second rolling device (50, 60) is made of a metallic or plastic material.
5. The caliper of claims 1 to 4, wherein the rotating axis (52) of the first rolling device (50) is arranged parallel to the rotating axis (62) of the second rolling device (60).
6. The caliper as claimed in claims 1 to 5, wherein the respective rotating axis (52, 62) of the first and the second rolling device (50, 60) is arranged perpendicularly to the longitudinal axis of the rail (10).
7. The caliper as claimed in claims 1 to 6, wherein the first and the second rolling device (50, 60) are configured to be mountable to and demountable from the fixed and the movable measuring arm (20, 30).
8. The caliper as claimed in claims 1 to 7, wherein the first and the second rolling device (50, 60) respectively comprises a plurality of the at least one roll (51a,..., 51n; 61a,..., 61n).
9. The caliper as claimed in claim 8,
- wherein the rolls (51a,..., 51n) of the first rolling device (50) are arranged in a stacked configuration around the rotating axis (52) of the first rolling device (50),
- wherein the rolls (61a,..., 61n) of the second rolling device (60) are arranged in a stacked configuration around the rotating axis (62) of the second rolling device (60).
10. The caliper as claimed in claims 8 or 9,
- wherein each of the rolls (51a,..., 51n) of the first rolling device (50) is concentrically and rotatably arranged around the rotating axis (52) of the first rolling device (50),
- wherein each of the rolls (61a,..., 61n) of the second rolling device (60) is concentrically and rotatably arranged around the rotating axis (62) of the second rolling device (60).
11. The caliper as claimed in any of the claims 1 to 10, wherein the caliper (1) is configured to provide a thickness profile of the measuring object (2) along a longitudinal direction of the measuring object (2), when the measuring object (2) is moved in the longitudinal direction between the fixed and the movable measuring arm (20, 30) of the caliper (1) or the caliper (1) is moved in the
5 longitudinal direction of the measuring object (2) along the measuring object (2).
12. The caliper as claimed in claim 11, comprising:
- a sensor device (70) to measure the distance between the fixed and the movable measuring arm (20, 30)
10 - an evaluation device (80) to assign the detected distance between the fixed and the movable measuring arm to a longitudinal position of the measuring object to provide the thickness profile of the measuring object (2), when the measuring object (2) is moved in the longitudinal direction between the fixed and the movable measuring arm (20, 30) of the caliper (1) or the caliper (1) is moved in the longitudinal direction
15 of the measuring object (2) along the measuring object (2).
13. The caliper as claimed in claim 12, comprising:
- a storage device (90) to store the thickness profile of the measuring object (2) by storing the detected distance between the fixed and the movable measuring arm (20,
2 0 30) assigned to the longitudinal position of the measuring object,
- an output terminal (110) to read the thickness profile of the measuring object (2) out of the storage device (90).
Intellectual
Property
Office
Application No: GB1621245.8 Examiner: Mr Mike Walker
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1621245.8A GB2557650A (en) | 2016-12-14 | 2016-12-14 | Caliper for measuring an outer diameter of a measuring object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1621245.8A GB2557650A (en) | 2016-12-14 | 2016-12-14 | Caliper for measuring an outer diameter of a measuring object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201621245D0 GB201621245D0 (en) | 2017-01-25 |
| GB2557650A true GB2557650A (en) | 2018-06-27 |
Family
ID=58222034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1621245.8A Withdrawn GB2557650A (en) | 2016-12-14 | 2016-12-14 | Caliper for measuring an outer diameter of a measuring object |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2557650A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2020030A (en) * | 1978-03-17 | 1979-11-07 | Hakkarainen S | A measuring device for cylindrical objects |
| JPS58146801A (en) * | 1982-02-25 | 1983-09-01 | Tanaka Kikinzoku Kogyo Kk | Vernier calipers |
| CN201378032Y (en) * | 2009-04-24 | 2010-01-06 | 江苏省电力公司镇江供电公司 | Electric cable measuring device |
| CN201997545U (en) * | 2011-03-07 | 2011-10-05 | 新疆八一钢铁股份有限公司 | Improved measuring tool of special caliper |
| CN205403636U (en) * | 2016-02-14 | 2016-07-27 | 昆山威钢金属工业有限公司 | Take measuring caliper of gyro wheel |
-
2016
- 2016-12-14 GB GB1621245.8A patent/GB2557650A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2020030A (en) * | 1978-03-17 | 1979-11-07 | Hakkarainen S | A measuring device for cylindrical objects |
| JPS58146801A (en) * | 1982-02-25 | 1983-09-01 | Tanaka Kikinzoku Kogyo Kk | Vernier calipers |
| CN201378032Y (en) * | 2009-04-24 | 2010-01-06 | 江苏省电力公司镇江供电公司 | Electric cable measuring device |
| CN201997545U (en) * | 2011-03-07 | 2011-10-05 | 新疆八一钢铁股份有限公司 | Improved measuring tool of special caliper |
| CN205403636U (en) * | 2016-02-14 | 2016-07-27 | 昆山威钢金属工业有限公司 | Take measuring caliper of gyro wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201621245D0 (en) | 2017-01-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |