CA1076346A - Piston ring side taper gage - Google Patents
Piston ring side taper gageInfo
- Publication number
- CA1076346A CA1076346A CA271,645A CA271645A CA1076346A CA 1076346 A CA1076346 A CA 1076346A CA 271645 A CA271645 A CA 271645A CA 1076346 A CA1076346 A CA 1076346A
- Authority
- CA
- Canada
- Prior art keywords
- angle
- gage
- anvil
- side face
- piston ring
- 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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/241—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for measuring conicity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
AR:RCC:cew PISTON RING SIDE TAPER GAGE
Abstract A gage for measuring the taper angle of each side face and/or the included angle of taper between the side faces of a tapered piston ring, in which an anvil is pivotally mounted with respect to a reference surface and is adapted to be seated against the side face of a piston ring resting on the reference surface.
A dial indicator is coupled to the anvil and provides a direct reading in minutes of the angular position of the anvil, which corresponds to the angle of taper of the engaged ring side face with respect to the refer-ence surface.
- - - o - - -- i -
Abstract A gage for measuring the taper angle of each side face and/or the included angle of taper between the side faces of a tapered piston ring, in which an anvil is pivotally mounted with respect to a reference surface and is adapted to be seated against the side face of a piston ring resting on the reference surface.
A dial indicator is coupled to the anvil and provides a direct reading in minutes of the angular position of the anvil, which corresponds to the angle of taper of the engaged ring side face with respect to the refer-ence surface.
- - - o - - -- i -
Description
3~
The present invention relates to gaging in-strumentation and, more specifically, to an instrument for gaging the side Eace taper angle of high perform-ance piston rings.
High performance reciprocating piston inter-nal combustion engines often include piston compression and/or oil control rings having frustoconical axial or side ring faces which are adapted to mate in sealing engagement with corresponding opposed faces of a seal groove in the piston. When viewed in radial cross sec-tion, the side faces of such rings taper toward each other in the direction of the ring axis. Hence, piston rings of the described type are often referenced in the art, and are referenced hereinafter, as tapered piston rings. For optimum engine performance, the angle of taper of each ring side face, and the included angle of taper measured between the two ring side faces, must be closely matched to the corresponding taper angles of the piston groove in which the ring is to be seated.
I-t is an object of the presen-t invention to provide a gage for measuring the side face taper angle and/or the included taper angle between the side faces of a piston ring of the above-described type which is economical in manufacture and assembly, which is accu-rate and reliable in operation, which has a minimum ~ r 1~763~6 number of moving parts, which may be readily calibrated and/or which yields a direct reading in minutes of de-parture of the measured taper angle from a preselected nominal value.
The novel features which are considered to be characteristic of the present invention are set forth in particular in the appended claims. The invention itself, however, together with additional objects, fea-tures and advantages thereof, will be best understood from the following description when read in conjunction with the accompanying drawings in which:
FIG. 1 iS a side elevational view of an em-bodiment of the invention which is adapted for gaging the side face angle of a tapered piston ring;
FIG. 2 is a side elevational view of an alter-native embodiment of the invention shown in FIG. 1; and FIG. 3 is a side elevational view of an em-bodiment of the invention which is adapted for gaging the included angle between the side faces of a tapered
The present invention relates to gaging in-strumentation and, more specifically, to an instrument for gaging the side Eace taper angle of high perform-ance piston rings.
High performance reciprocating piston inter-nal combustion engines often include piston compression and/or oil control rings having frustoconical axial or side ring faces which are adapted to mate in sealing engagement with corresponding opposed faces of a seal groove in the piston. When viewed in radial cross sec-tion, the side faces of such rings taper toward each other in the direction of the ring axis. Hence, piston rings of the described type are often referenced in the art, and are referenced hereinafter, as tapered piston rings. For optimum engine performance, the angle of taper of each ring side face, and the included angle of taper measured between the two ring side faces, must be closely matched to the corresponding taper angles of the piston groove in which the ring is to be seated.
I-t is an object of the presen-t invention to provide a gage for measuring the side face taper angle and/or the included taper angle between the side faces of a piston ring of the above-described type which is economical in manufacture and assembly, which is accu-rate and reliable in operation, which has a minimum ~ r 1~763~6 number of moving parts, which may be readily calibrated and/or which yields a direct reading in minutes of de-parture of the measured taper angle from a preselected nominal value.
The novel features which are considered to be characteristic of the present invention are set forth in particular in the appended claims. The invention itself, however, together with additional objects, fea-tures and advantages thereof, will be best understood from the following description when read in conjunction with the accompanying drawings in which:
FIG. 1 iS a side elevational view of an em-bodiment of the invention which is adapted for gaging the side face angle of a tapered piston ring;
FIG. 2 is a side elevational view of an alter-native embodiment of the invention shown in FIG. 1; and FIG. 3 is a side elevational view of an em-bodiment of the invention which is adapted for gaging the included angle between the side faces of a tapered
2 0 piston ring.
One embodiment 10 of the piston ring side taper gage provided by the invention is shown in FIG.
1 and comprises a gaging plate 12 having a horizontal plane reference surface 14. A bracket 20 is carried ~L~763~
by plate 12 and has a measuring anvil 22 mounted thereto by a pivot pin 24 such that anvil 22 is free to rotate in a plane perpendicular to reference surface 14 about a f i~ed pin axis . The lower or gaging surface 26 of anvil 22 is accurately machined to have either a flat or frustoconical surface contour with an angle of taper preferably equal to a preselected nominal taper angle of a piston ring side face. A dial indicator 30 is carried vertically by bracket 20 and has a measuring spindle 32 depending therefrom to contact a flat upper surface 34 of anvil 22. Thus, the position of the con-tact point between spindle 32 and anvil surface 34, and, hence, the reading on dial indicator 30, is a direct function of the angular position of anvil 22 about its pivot axis.
For the purpose of explaining the operation of gage 10, a tapered piston ring 36 is shown in FIG.
1 and has frustoconical side faces 38,40. The taper angle of side face 38 is to be measured. Ring 36 is positioned generally coaxially about indlcator 30 and bracket 20 and res-ts on reference surface 14 on a ring side edge 42. The ring is then slid along surface 14 until the side face 38 remote from edge 42 is in inti-mate contact with anvil gaging surface 26 at a point ~q~763~
in the ring circumference where the measurement is to be taken. Anvil 22 will assume a position about its pivot a~is as a function of the angle between side face 38 and reference surface 14, and will thus provide a measurement of such angle on the face of dial indica-tor 30. It will be evident that the angle of taper of ring side face 40 may be readily measured by merely re-moving the ring from gage 10, inverting the ring, and then replacing the ring on the gage with face 40 in the upper position in intimate contact with gaging sur-face 26.
It is a significant feature of the present invention that, by selecting an appropriate distance d between the axis of pin 24 and the axis of spindle 32, measured in a direction perpendicular to both axes as seen in FIG. 1, dial indicator 30 may be made tc yield readings direc-tly in minutes of side face taper angle~ More specifically, the distance d is preferably calculated to satisfy the equation:
d = a/tan ~0, (1) wherein a is a preselected unit of linear spindle dis-placement and a~ is the change or departure from nom-inal of the side face taper angle selected to correspond to such unit of spindle displacementO For small values ~7~ii3~
of a~ expressed in radians:
e = tan ~. (2) Hence, if indicator 30 is graduated in increments of ten thousandths of an inch (O.OQOlinch), each indicator graduation will correspond to one minute of taper angle when distance d is made equal to 0.343775 inch. Where upper anvil surface 34 is perpendicular to the axis of spindle 32 in the nominal anvil position, as is preEer-red, the inherent error of the present invention as described is less than seven parts per million (7 x 10 percent) over an angular range (~ ~) of thirty minutes, iOe., the nominal side face taper angle plus or mlnus f ifteen minutes. Furthermore, gage 10 may be readily calibrated to the preselected nominal side face taper angle by merely replacing ring 36 in FIG. 1 with a second anvil identical to anvil 22, and then zeroing indicator 300 Moreover, gage 10 may be readily adapted for any one of a number of nominal side face taper angles by merely replacing anvil 22 with another anvil having the desired nominally machined gaging surfaceO
A modified embodiment 50 of the i~vention, again for measuring the angle of taper of one ring side face, is shown in FIG. 2, wherein reference numerals identical to those used in FIG. 1 indicate identical ~L~7639~6 parts. In the embodiment of FIG. 2, indicator 30 is horizontally mounted by a bracket 52 with spindle 32 extending therefrom to engage a flat vertical surface 54 on a measuring anvil 56.~ It will be evident that anvil 56 is similar to anvil 22 of FIG~ 1~ with the exception of the vertical projection extending from the main body of anvil 56 to provide spindle engaging surface 54. The distance d discussed in detail in con-nection with FIG~ 1 is again measured in FIG~ 2 between the spindle and pivot pin axes in a direction perpen-dicular to both, this time in the vertical direction.
The embodiment of FIG~ 2 has the advantage that the face of the dial indicator may be viewed from above.
However, there is a slight disadvantage in the embodi lS ment of FIGn 2 in that the gage cannot be calibrated merely by using a second anvil identical to anvil 56.
A gaging anvil of separate design, similar to anvil 22 in FIG~ 1 for example, must be used.
Another modified embodiment 60 of the inven-tion is shown in FIG~ 3, and is adapted for measuring the included angle of taper between ring side ~aces 38,40. In the embodiment of FIG~ 3, a frustoconical reference surface 62 is provided by a suitably machined block 64 mounted by a bracket 66 to a stationary ver-~i763~6 tical support 6~3. The cone angle of surface 62, i.e.,the angle of surface 62 with respect to the vertical, is preferably equal to the nominal angle of one ring side face. An anvil 70 having a gaging surface 72 is pivotably carried on bracket 66 by a pin 74O Dial in-dicator 30 is also carried by bracket 66 with indicator spindle 32 extending horizontally into engagement with a flat rear anvil surface 76. As in the embodiments of FIGS. 1 and 2, gaging surface 72 in the embodiment of FIG. 3 is machined at an angle with respect to the vertical equal to the nominal taper of one ring side face, rear anvil surface 76 is perpendicular to the axis of spindle 32 in the nominal position of gaging surface 72 with respect to reference surface 62, and distance d is measured between the pin and spindle axes in a direction perpendicular to both.
In the operation of the embodiment of FIG. 3, a piston ring 36 is to be placed between reference sur-face 62 and gaging surface 72 such that each of those surfaces is in intimate contact with one of the piston ring side faces 38,40. As in FIGSo 1 and 2, anvil sur-faces 72,76 of FIGo 3 assume a position with respect to reference surface 62 as a function of the ring 36 under test. The indicator dial in FIG. 3 provides a ~763~6 reading of the departure of the included angle between gaging surface 72 and reference surface 62, i.e., be-tween ring side faces 38,40, from the calibrated nom-inal. The ring will be held in position by gravity while the dial reading is recorded.
Although the piston ring side taper gage pro-vided by the present invention has been described in connection with three specific embodiments thereof, any and all of which satisfy the several objects, aims and advantages recited above, many modifications will sug-gest themselves to skilled artisans. For example, it will be apparent that any of the disclosed embodiments r may be readily modified to orient the face of indicator 30 to be viewed from any desired direction by merely modifying the associated anvil. For best accuracy, the only practical constraint on such modifications is that the axis of the indicator spindle should preferably be perpendicular to the opposing anvil surface in the nom-inal anvil position. It will also be apparent that all three of the disclosed embodiments may be modified for use with metric dial indicators by merely changing dis-tance d in correspondence with the graduated displace-ments displayed on the indicator dial. Moreover, where greater or lesser angle measuring accuracy is desired, 3L(~7kj39~6 the distance d may be appropriately increased or de-creased. Accordingly, the invention is intended to embrace these and all other alternatives, modifications and variations as fall with1n the spirit and broad 5 scope of the appended claims.
The invention claimed is:
_g_
One embodiment 10 of the piston ring side taper gage provided by the invention is shown in FIG.
1 and comprises a gaging plate 12 having a horizontal plane reference surface 14. A bracket 20 is carried ~L~763~
by plate 12 and has a measuring anvil 22 mounted thereto by a pivot pin 24 such that anvil 22 is free to rotate in a plane perpendicular to reference surface 14 about a f i~ed pin axis . The lower or gaging surface 26 of anvil 22 is accurately machined to have either a flat or frustoconical surface contour with an angle of taper preferably equal to a preselected nominal taper angle of a piston ring side face. A dial indicator 30 is carried vertically by bracket 20 and has a measuring spindle 32 depending therefrom to contact a flat upper surface 34 of anvil 22. Thus, the position of the con-tact point between spindle 32 and anvil surface 34, and, hence, the reading on dial indicator 30, is a direct function of the angular position of anvil 22 about its pivot axis.
For the purpose of explaining the operation of gage 10, a tapered piston ring 36 is shown in FIG.
1 and has frustoconical side faces 38,40. The taper angle of side face 38 is to be measured. Ring 36 is positioned generally coaxially about indlcator 30 and bracket 20 and res-ts on reference surface 14 on a ring side edge 42. The ring is then slid along surface 14 until the side face 38 remote from edge 42 is in inti-mate contact with anvil gaging surface 26 at a point ~q~763~
in the ring circumference where the measurement is to be taken. Anvil 22 will assume a position about its pivot a~is as a function of the angle between side face 38 and reference surface 14, and will thus provide a measurement of such angle on the face of dial indica-tor 30. It will be evident that the angle of taper of ring side face 40 may be readily measured by merely re-moving the ring from gage 10, inverting the ring, and then replacing the ring on the gage with face 40 in the upper position in intimate contact with gaging sur-face 26.
It is a significant feature of the present invention that, by selecting an appropriate distance d between the axis of pin 24 and the axis of spindle 32, measured in a direction perpendicular to both axes as seen in FIG. 1, dial indicator 30 may be made tc yield readings direc-tly in minutes of side face taper angle~ More specifically, the distance d is preferably calculated to satisfy the equation:
d = a/tan ~0, (1) wherein a is a preselected unit of linear spindle dis-placement and a~ is the change or departure from nom-inal of the side face taper angle selected to correspond to such unit of spindle displacementO For small values ~7~ii3~
of a~ expressed in radians:
e = tan ~. (2) Hence, if indicator 30 is graduated in increments of ten thousandths of an inch (O.OQOlinch), each indicator graduation will correspond to one minute of taper angle when distance d is made equal to 0.343775 inch. Where upper anvil surface 34 is perpendicular to the axis of spindle 32 in the nominal anvil position, as is preEer-red, the inherent error of the present invention as described is less than seven parts per million (7 x 10 percent) over an angular range (~ ~) of thirty minutes, iOe., the nominal side face taper angle plus or mlnus f ifteen minutes. Furthermore, gage 10 may be readily calibrated to the preselected nominal side face taper angle by merely replacing ring 36 in FIG. 1 with a second anvil identical to anvil 22, and then zeroing indicator 300 Moreover, gage 10 may be readily adapted for any one of a number of nominal side face taper angles by merely replacing anvil 22 with another anvil having the desired nominally machined gaging surfaceO
A modified embodiment 50 of the i~vention, again for measuring the angle of taper of one ring side face, is shown in FIG. 2, wherein reference numerals identical to those used in FIG. 1 indicate identical ~L~7639~6 parts. In the embodiment of FIG. 2, indicator 30 is horizontally mounted by a bracket 52 with spindle 32 extending therefrom to engage a flat vertical surface 54 on a measuring anvil 56.~ It will be evident that anvil 56 is similar to anvil 22 of FIG~ 1~ with the exception of the vertical projection extending from the main body of anvil 56 to provide spindle engaging surface 54. The distance d discussed in detail in con-nection with FIG~ 1 is again measured in FIG~ 2 between the spindle and pivot pin axes in a direction perpen-dicular to both, this time in the vertical direction.
The embodiment of FIG~ 2 has the advantage that the face of the dial indicator may be viewed from above.
However, there is a slight disadvantage in the embodi lS ment of FIGn 2 in that the gage cannot be calibrated merely by using a second anvil identical to anvil 56.
A gaging anvil of separate design, similar to anvil 22 in FIG~ 1 for example, must be used.
Another modified embodiment 60 of the inven-tion is shown in FIG~ 3, and is adapted for measuring the included angle of taper between ring side ~aces 38,40. In the embodiment of FIG~ 3, a frustoconical reference surface 62 is provided by a suitably machined block 64 mounted by a bracket 66 to a stationary ver-~i763~6 tical support 6~3. The cone angle of surface 62, i.e.,the angle of surface 62 with respect to the vertical, is preferably equal to the nominal angle of one ring side face. An anvil 70 having a gaging surface 72 is pivotably carried on bracket 66 by a pin 74O Dial in-dicator 30 is also carried by bracket 66 with indicator spindle 32 extending horizontally into engagement with a flat rear anvil surface 76. As in the embodiments of FIGS. 1 and 2, gaging surface 72 in the embodiment of FIG. 3 is machined at an angle with respect to the vertical equal to the nominal taper of one ring side face, rear anvil surface 76 is perpendicular to the axis of spindle 32 in the nominal position of gaging surface 72 with respect to reference surface 62, and distance d is measured between the pin and spindle axes in a direction perpendicular to both.
In the operation of the embodiment of FIG. 3, a piston ring 36 is to be placed between reference sur-face 62 and gaging surface 72 such that each of those surfaces is in intimate contact with one of the piston ring side faces 38,40. As in FIGSo 1 and 2, anvil sur-faces 72,76 of FIGo 3 assume a position with respect to reference surface 62 as a function of the ring 36 under test. The indicator dial in FIG. 3 provides a ~763~6 reading of the departure of the included angle between gaging surface 72 and reference surface 62, i.e., be-tween ring side faces 38,40, from the calibrated nom-inal. The ring will be held in position by gravity while the dial reading is recorded.
Although the piston ring side taper gage pro-vided by the present invention has been described in connection with three specific embodiments thereof, any and all of which satisfy the several objects, aims and advantages recited above, many modifications will sug-gest themselves to skilled artisans. For example, it will be apparent that any of the disclosed embodiments r may be readily modified to orient the face of indicator 30 to be viewed from any desired direction by merely modifying the associated anvil. For best accuracy, the only practical constraint on such modifications is that the axis of the indicator spindle should preferably be perpendicular to the opposing anvil surface in the nom-inal anvil position. It will also be apparent that all three of the disclosed embodiments may be modified for use with metric dial indicators by merely changing dis-tance d in correspondence with the graduated displace-ments displayed on the indicator dial. Moreover, where greater or lesser angle measuring accuracy is desired, 3L(~7kj39~6 the distance d may be appropriately increased or de-creased. Accordingly, the invention is intended to embrace these and all other alternatives, modifications and variations as fall with1n the spirit and broad 5 scope of the appended claims.
The invention claimed is:
_g_
Claims
1.
A gage for measuring the side face angle of a tapered piston ring comprising rigid means pro-viding a fixed reference surface against which a tapered piston ring may be rested, an anvil mounted by support means to pivot about an axis which is fixed with respect to said reference surface and having a gaging surface adapted to engage a ring side face remote from said reference surface, said anvil thereby assuming an angular pivotal position with respect to said reference surface which is a function of the angle between said reference surface and the ring side face engaged by said gaging surface, and a dial indicator carried by said support means in fixed position with respect to said reference surface and having a retractable indicator spindle extending therefrom to engage said anvil from a direction perpendicular to said fixed pivot axis such that the linear position of said spindle and the corresponding reading at said dial indicator carries as a function of said pivotal position of said anvil.
2.
The gage set forth in claim 1 wherein said anvil includes a second surface, said spindle engaging said anvil on said second surface, and wherein the distance between the point of engagement on said second surface and said fixed axis is a fixed distance d.
3.
The gage set forth in claim 2 wherein said second surface is flat, and wherein said spindle is responsive to linear displacement of said point of engagement in a direction substantially perpendicular to said second surface.
4.
The gage set forth in claim 3 wherein said gaging surface is at an angle with respect to said reference surface equal to a preselected nominal piston ring taper angle at a preselected position of said point of engagement.
5.
The gage set forth in claim 4 wherein said distance d is equal to the expression a/tan .DELTA. .THETA. where a is a preselected unit of linear displacement of said second surface measured in a direction perpendicular to said second surface at said nominal angle and .DELTA. .THETA.
is the angle between said gaging surface and said reference measured with respect to said nominal angle.
6.
The gage set forth in claim 5 wherein said dial indicator is graduated in units of one ten thou-sandth of an inch and wherein said distance d is sub-stantially equal to 0.343775 inch, whereby each said indicator graduation corresponds to one minute of angular departure from said nominal angle.
7.
A gage as set forth in claim 1 wherein said gaging surface has a frustoconical surface contour adapted for intimate surface engagement with a piston ring side face.
8.
A gage as set forth in claim 1 for measuring the side face angle of the piston ring wherein said reference surface comprises a plane surface on which a tapered piston ring may be rested on a ring side edge such that a one ring side face remote from said side edge is engaged by said gaging surface, said support means being mounted in fixed position on said reference surface, whereby said gage will indicate the angle of taper of the one ring side face.
9.
A gage as set forth in claim 1 for measuring the included taper angle of the piston ring wherein said reference surface is a frustoconical surface having a cone angle equal to a preselected nominal taper angle of a piston ring side face and on which a tapered piston ring may be rested on one side face thereof such that the other side face of the ring is engaged by said gaging surface, whereby said gage will indicate the included angle of taper between the one and the other of the piston ring side faces.
10.
The gage as set forth in any of claims 1, 8 or 9 wherein said support means, dial indicator and anvil are such that a said tapered ring may be telescopically received over said support means, dial indicator and anvil onto said reference surface and then positioned on said reference surface in engage-ment with said gaging surface.
A gage for measuring the side face angle of a tapered piston ring comprising rigid means pro-viding a fixed reference surface against which a tapered piston ring may be rested, an anvil mounted by support means to pivot about an axis which is fixed with respect to said reference surface and having a gaging surface adapted to engage a ring side face remote from said reference surface, said anvil thereby assuming an angular pivotal position with respect to said reference surface which is a function of the angle between said reference surface and the ring side face engaged by said gaging surface, and a dial indicator carried by said support means in fixed position with respect to said reference surface and having a retractable indicator spindle extending therefrom to engage said anvil from a direction perpendicular to said fixed pivot axis such that the linear position of said spindle and the corresponding reading at said dial indicator carries as a function of said pivotal position of said anvil.
2.
The gage set forth in claim 1 wherein said anvil includes a second surface, said spindle engaging said anvil on said second surface, and wherein the distance between the point of engagement on said second surface and said fixed axis is a fixed distance d.
3.
The gage set forth in claim 2 wherein said second surface is flat, and wherein said spindle is responsive to linear displacement of said point of engagement in a direction substantially perpendicular to said second surface.
4.
The gage set forth in claim 3 wherein said gaging surface is at an angle with respect to said reference surface equal to a preselected nominal piston ring taper angle at a preselected position of said point of engagement.
5.
The gage set forth in claim 4 wherein said distance d is equal to the expression a/tan .DELTA. .THETA. where a is a preselected unit of linear displacement of said second surface measured in a direction perpendicular to said second surface at said nominal angle and .DELTA. .THETA.
is the angle between said gaging surface and said reference measured with respect to said nominal angle.
6.
The gage set forth in claim 5 wherein said dial indicator is graduated in units of one ten thou-sandth of an inch and wherein said distance d is sub-stantially equal to 0.343775 inch, whereby each said indicator graduation corresponds to one minute of angular departure from said nominal angle.
7.
A gage as set forth in claim 1 wherein said gaging surface has a frustoconical surface contour adapted for intimate surface engagement with a piston ring side face.
8.
A gage as set forth in claim 1 for measuring the side face angle of the piston ring wherein said reference surface comprises a plane surface on which a tapered piston ring may be rested on a ring side edge such that a one ring side face remote from said side edge is engaged by said gaging surface, said support means being mounted in fixed position on said reference surface, whereby said gage will indicate the angle of taper of the one ring side face.
9.
A gage as set forth in claim 1 for measuring the included taper angle of the piston ring wherein said reference surface is a frustoconical surface having a cone angle equal to a preselected nominal taper angle of a piston ring side face and on which a tapered piston ring may be rested on one side face thereof such that the other side face of the ring is engaged by said gaging surface, whereby said gage will indicate the included angle of taper between the one and the other of the piston ring side faces.
10.
The gage as set forth in any of claims 1, 8 or 9 wherein said support means, dial indicator and anvil are such that a said tapered ring may be telescopically received over said support means, dial indicator and anvil onto said reference surface and then positioned on said reference surface in engage-ment with said gaging surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66846776A | 1976-03-19 | 1976-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1076346A true CA1076346A (en) | 1980-04-29 |
Family
ID=24682413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA271,645A Expired CA1076346A (en) | 1976-03-19 | 1977-02-11 | Piston ring side taper gage |
Country Status (12)
| Country | Link |
|---|---|
| JP (2) | JPS52114358A (en) |
| AU (1) | AU499068B2 (en) |
| BE (1) | BE852443A (en) |
| BR (1) | BR7701675A (en) |
| CA (1) | CA1076346A (en) |
| DE (1) | DE2711965A1 (en) |
| ES (1) | ES456939A1 (en) |
| GB (1) | GB1547502A (en) |
| IT (1) | IT1086705B (en) |
| MX (1) | MX144903A (en) |
| SE (1) | SE432019B (en) |
| ZA (1) | ZA77886B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5466867U (en) * | 1977-10-20 | 1979-05-12 | ||
| CN106767335B (en) * | 2016-12-26 | 2019-05-10 | 沪东中华造船(集团)有限公司 | The measurement method of stern tube bearing gradient |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE864003C (en) * | 1948-12-11 | 1953-01-22 | Emil Schauffler | Gauge for measuring conical flanges, especially spindle flanges for turning bars |
| CH541127A (en) * | 1972-01-20 | 1973-08-31 | Landis & Gyr Ag | Device for measuring and / or checking angles |
-
1977
- 1977-02-11 CA CA271,645A patent/CA1076346A/en not_active Expired
- 1977-02-15 ZA ZA00770886A patent/ZA77886B/en unknown
- 1977-02-17 AU AU22368/77A patent/AU499068B2/en not_active Expired
- 1977-02-22 IT IT48167/77A patent/IT1086705B/en active
- 1977-02-24 MX MX168145A patent/MX144903A/en unknown
- 1977-03-14 BE BE175774A patent/BE852443A/en not_active IP Right Cessation
- 1977-03-16 JP JP2916877A patent/JPS52114358A/en active Pending
- 1977-03-17 GB GB11262/77A patent/GB1547502A/en not_active Expired
- 1977-03-17 ES ES456939A patent/ES456939A1/en not_active Expired
- 1977-03-18 SE SE7703117A patent/SE432019B/en not_active IP Right Cessation
- 1977-03-18 BR BR7701675A patent/BR7701675A/en unknown
- 1977-03-18 DE DE19772711965 patent/DE2711965A1/en active Granted
-
1983
- 1983-12-13 JP JP1983192069U patent/JPS59112104U/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES456939A1 (en) | 1978-06-16 |
| ZA77886B (en) | 1978-09-27 |
| SE7703117L (en) | 1977-09-20 |
| AU2236877A (en) | 1978-08-24 |
| BR7701675A (en) | 1978-01-24 |
| JPS59112104U (en) | 1984-07-28 |
| IT1086705B (en) | 1985-05-31 |
| DE2711965A1 (en) | 1977-09-29 |
| AU499068B2 (en) | 1979-04-05 |
| BE852443A (en) | 1977-09-14 |
| SE432019B (en) | 1984-03-12 |
| JPS52114358A (en) | 1977-09-26 |
| GB1547502A (en) | 1979-06-20 |
| DE2711965C2 (en) | 1988-05-11 |
| MX144903A (en) | 1981-12-02 |
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