US2756508A - Combination sine-bar and v-block - Google Patents

Combination sine-bar and v-block Download PDF

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US2756508A
US2756508A US411693A US41169354A US2756508A US 2756508 A US2756508 A US 2756508A US 411693 A US411693 A US 411693A US 41169354 A US41169354 A US 41169354A US 2756508 A US2756508 A US 2756508A
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bar
sine
block
plane
plug
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US411693A
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Patrick C O'grady
Charles H O'grady
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    • 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
    • G01B5/242—Sine bars; Sine plates

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  • This invention relates to a combination sine-bar and V-block for accurately locating a work piece and measuring an angle thereof.
  • One object of this invention is to provide a sine-bar having a V-block formed integrally therewith.
  • Another object of the invention is to provide a sinebar having the usual plugs which are mounted on the sine-bar in a manner which permits nely adjusting the spacing between the plugs to precisely the distance desired.
  • Still another object of the invention is to provide a combination sine-bar and V-block which is pivotally mounted upon a base plate.
  • one of the sine-bar plugs is hinged to the base plate for vertical swinging movement of the sine-bar relative to the base plate.
  • a still further object of the invention is to provide a combination sine-bar and V-block having a stepped gaging block supporting member to increase the range of tapers that may be checked.
  • Figure l is a perspective view of a combination sinebar and V-block constructed in accordance with the present invention.
  • Figure 2 is a longitudinal sectional view of the combination sine-bar and V-block shown in Figure l, with the parts shown in two positions;
  • Figure 3 is a sectional View taken along the line 3-3 on Figure l;
  • Figure 4 is a rear elevational view
  • Figure 5 is a sectional view taken along the line 5-5 on Figure 3;
  • Figure 6 is a detail view showing one of the rest pads for the base plate.
  • the sine-bar is generally indicated at 10 and is desirably formed of a high grade tool steel.
  • the sine-bar 10 has a bottom plane surface 11 and is formed at opposite sides thereof with integral depending leg portions 12.
  • the sine-bar is provided with the usual hardened and ground cylindrical plugs 13 and 14 which are of exactly the same diameter.
  • the bottom surface 11 of the sine-bar provides an upper abutment for the plugs 13 and 14.
  • the rear end surfaces 15 of depending legs 12 lie in a common plane which extends at right angles to the bottom surface 11 of the sine-bar.
  • the front end surfaces 16 of the legs 12 likewise lie in a common plane which extends at right angles to the bottom surface 11 of the sine-bar, the plane of the front ends 16 of the legs 12 being parallel to the plane of the rear ends 15.
  • the front and rear ends of the leg portions terminate short of the front and rear ends lof the sine-bar to dene right angle recesses with ice the bottom surface 13 for the reception of the plugs (see Figure 2).
  • the plugs are respectively mounted in the recesses by means of suitable screws 17.
  • the plugs are suitably transversely bored for the reception of these screws which thread into tapped bores in the sine-bar as best shown in Figure 5.
  • the plugs are mounted on the sine-bar in accurate parallel relation and with their centers or axes lying in a plane parallel to thebottom surface 13 of the sine-bar.
  • the distance between the centers of the plugs be an even'v indicated in Figures 2 and 5, for the reception of *suit-v able headed adjusting elements 13, these elements having shanks which threadedly engage in the longitudinal bores in the legs.
  • the adjusting elements may be backed off slightly to cause the heads to project beyond the front ends 16 of the legs to accurately determine the distance between the centers of the plugs.
  • the pitch of the threaded Shanks of these adjusting elements is such that a very ne adjustment can be made.
  • V-block 20 comprises the laterally spaced upwardly and longitudinally extending portions 21 and 22 which have their inner sides 23 and 24 tapered to V coniiguration.
  • the V formed by the sides 23 and 24 has an apex which extends parallel to the plane through the axes or centers of the plugs. It will be noted, of course, that the inner ends of these sides 23 and 24 do not actually meet since the apex of the V is obliterated by the longitudinally extending channel 25. However, the inner ends 26 and 27 of these sides run parallel to the apex of the V.
  • the V-block is provided for receiving a tool, for example, which has a taper to be measured.
  • the tool is merely placed in the V of the V-block for this purpose;
  • recesses 2S and 29 are formed in the tapering sides 23 and 24 of the V-block, being located in opposed facing relation to each other, and these recesses are provided to receive enlarged portions of the tool which are not being measured, so as to permit the tapering portion ofthe tool to rest snugly in the V.
  • the outer surface 3G of the V-block portion Z1 is a plane surface extending at right angles to the plug centers, and the plane surface 31 is disposed parallel to the plane passing through the plug centers. Obviously, a tool having a taper to be measured could be supported in abutting relation to the surfaces 30 and 31.
  • leg portions 12 of the sine-bar may be bored to provide the openings 32 to lighten the device.
  • the sine-bar 10 is pivotally supported on a rectangular base plate 33. At the rear corners of the base plate, pillow blocks 34 and 35 are provided having journals for rotatably receiving the opposite end portions of the rear plug 13.
  • the sine-bar is so dimensioned and the pi1low.
  • gage block supporting member 3T Member 37 is removably securedon fthetop surfaceoffthebasei-plate'by thexscrews* 38.
  • the bottom surface 40,ofthebasewplatewisl determinedby-the restipa'ds-41 at the four. corners of the base'plate which extend slightly below the majorvportion of thebottomof'thebase plate.
  • These pads are formed with'M grooves 1 orserrationss 4 2y f as shown to prevent the collectionfofparticles of matterwhich mightget under the pads and edestroy the accuracyof the instrument.
  • the tool havingataperrtobe measured may be' supported infthe V of the V-block, ormay be'supportedby the surfaces 30and31.
  • Gage blocks maythen'be stackedupon :the .surface .39 of the gagef block supportingmemberl in an arrangement such that the sine-bar and V block, are..
  • I'hegase-blocksupporting-member 37V is also formed' with a second surface 44 to one side offthe surface 39and spaced vertically therefrom.l
  • the surface 44 extends parallel i to the surface 39 fand zthus provides f a Vsecond surface foresupportinga stack of gage blocks;A
  • a sine bar ⁇ having a plane bottom surface. anda pair ofintegraldepending legsfatopposite: sides thereof eltending in spaced parallel relationship from frontto. rear of said sine bar, therear end surfaces Vof said' legs lying inacomm'on plane perpendicular to said plane: bottom surface and spaced forwardly to the rear end-.of- ⁇ said since' bar and cooperating with ⁇ said plane bottom surface of saidV sine bar to define aligned recesses,-.
  • gage blocksupporton the upper surface of said base beneath said second plugE andengageable therewithn upon swinging movement ofsaid-.sine bar toward said base,l said gage .block supportA being;located'laterally; inwardly of saiddepending legs lo. clear; the -latter andextending into the space between ,said depending legs upon swingingmovement ofsaid sine bari. towardl-saidlbase, anda V-block integral withsaid sine ⁇ bar andprojecting upwardly from the latter, said V-block having-jan elongated.A upwardly opening V-shapedrecess.

Description

July 31, 1956 P, C. O'GRADY ETAL 2,756,508
COMBINATION SINE-BAR AND V-BLOCK med Feb. 2s. 1954 I r I PATRICK C.O`GRADY BY CHARLES H.O'GRADY Wwe/#MQW ATTORNEYS United States Patent() COMBINATION SINE-BAR AND V-BLOCK Patrick C. OGrady and 'Charles H. OGrady, Mount Clemens, Mich.
Application February 23, 1954, Serial No. 411,693
4 Claims. (Cl. 3.3-174) This invention relates to a combination sine-bar and V-block for accurately locating a work piece and measuring an angle thereof.
One object of this invention is to provide a sine-bar having a V-block formed integrally therewith.
Another object of the invention is to provide a sinebar having the usual plugs which are mounted on the sine-bar in a manner which permits nely adjusting the spacing between the plugs to precisely the distance desired.
Still another object of the invention is to provide a combination sine-bar and V-block which is pivotally mounted upon a base plate. In particular, one of the sine-bar plugs is hinged to the base plate for vertical swinging movement of the sine-bar relative to the base plate.
A still further object of the invention is to provide a combination sine-bar and V-block having a stepped gaging block supporting member to increase the range of tapers that may be checked.
Other objects of the invention will become apparent as the following description proceeds, especially when taken in conjunction with the acocmpanying drawing wherein:
Figure l is a perspective view of a combination sinebar and V-block constructed in accordance with the present invention;
Figure 2 is a longitudinal sectional view of the combination sine-bar and V-block shown in Figure l, with the parts shown in two positions;
Figure 3 is a sectional View taken along the line 3-3 on Figure l;
Figure 4 is a rear elevational view;
Figure 5 is a sectional view taken along the line 5-5 on Figure 3; and
Figure 6 is a detail view showing one of the rest pads for the base plate.
Referring now more particularly to the drawing, the sine-bar is generally indicated at 10 and is desirably formed of a high grade tool steel. The sine-bar 10 has a bottom plane surface 11 and is formed at opposite sides thereof with integral depending leg portions 12. The sine-bar is provided with the usual hardened and ground cylindrical plugs 13 and 14 which are of exactly the same diameter.
As shown particularly in Figure 2 of the drawing, the bottom surface 11 of the sine-bar, at opposite ends of the latter, provides an upper abutment for the plugs 13 and 14. In addition, it will be seen that the rear end surfaces 15 of depending legs 12 lie in a common plane which extends at right angles to the bottom surface 11 of the sine-bar. The front end surfaces 16 of the legs 12 likewise lie in a common plane which extends at right angles to the bottom surface 11 of the sine-bar, the plane of the front ends 16 of the legs 12 being parallel to the plane of the rear ends 15. Moreover, it will be noted that the front and rear ends of the leg portions terminate short of the front and rear ends lof the sine-bar to dene right angle recesses with ice the bottom surface 13 for the reception of the plugs (see Figure 2). j
The plugs are respectively mounted in the recesses by means of suitable screws 17. The plugs are suitably transversely bored for the reception of these screws which thread into tapped bores in the sine-bar as best shown in Figure 5. In accordance with the above arrangement, it will be appreciated that the plugs are mounted on the sine-bar in accurate parallel relation and with their centers or axes lying in a plane parallel to thebottom surface 13 of the sine-bar.
In the design of a sine-bar, it is preferable that the distance between the centers of the plugs be an even'v indicated in Figures 2 and 5, for the reception of *suit-v able headed adjusting elements 13, these elements having shanks which threadedly engage in the longitudinal bores in the legs.
If it is found that the distance between opposite ends of the legs is slightly undersize, then the adjusting elements may be backed off slightly to cause the heads to project beyond the front ends 16 of the legs to accurately determine the distance between the centers of the plugs. The pitch of the threaded Shanks of these adjusting elements is such that a very ne adjustment can be made.
It will be understood that the bores in the sine-bar for the reception of the mounting screws 17 will not be formed until after any adjustment in the adjusting elements has been made.
The V-block is formed integrally with the sine-bar 10. V-block 20 comprises the laterally spaced upwardly and longitudinally extending portions 21 and 22 which have their inner sides 23 and 24 tapered to V coniiguration. The V formed by the sides 23 and 24 has an apex which extends parallel to the plane through the axes or centers of the plugs. It will be noted, of course, that the inner ends of these sides 23 and 24 do not actually meet since the apex of the V is obliterated by the longitudinally extending channel 25. However, the inner ends 26 and 27 of these sides run parallel to the apex of the V.
It will also be appreciated that the apex of the V lies in a plane perpendicular to the plug centers.
The V-block is provided for receiving a tool, for example, which has a taper to be measured. The tool is merely placed in the V of the V-block for this purpose; It will be noted that recesses 2S and 29 are formed in the tapering sides 23 and 24 of the V-block, being located in opposed facing relation to each other, and these recesses are provided to receive enlarged portions of the tool which are not being measured, so as to permit the tapering portion ofthe tool to rest snugly in the V.
The outer surface 3G of the V-block portion Z1 is a plane surface extending at right angles to the plug centers, and the plane surface 31 is disposed parallel to the plane passing through the plug centers. Obviously, a tool having a taper to be measured could be supported in abutting relation to the surfaces 30 and 31.
The leg portions 12 of the sine-bar may be bored to provide the openings 32 to lighten the device.
The sine-bar 10 is pivotally supported on a rectangular base plate 33. At the rear corners of the base plate, pillow blocks 34 and 35 are provided having journals for rotatably receiving the opposite end portions of the rear plug 13. The sine-bar is so dimensioned and the pi1low.
permitted relative to the base plate. The pillow blocks.
3-1 are removably secured on the base plate by the screws 36. Atlthe front end of the base plate is provided a gage block supporting member 3T Member 37 is removably securedon fthetop surfaceoffthebasei-plate'by thexscrews* 38. The top surface 39 of the gage block supporting mem# ber-.issso-located that when thefsine-barfis in'its lower limiting -position,.shown in'dotted lines-in Figure 2.withsplug;V 14resting; on surface; 39, -the planethrou'gh.the centers: of4
extend parallel tov the bottomlplaneV surface 40- offthe* base plate.v Itwill also benotedzthat 1the top surface 39= is parallel' to the plane through `the'plug, centers and' in\ awplane tangent toithe lowerr sideoflthefplugg'l.
Actually, the bottom surface 40,ofthebasewplatewisl determinedby-the restipa'ds-41 at the four. corners of the base'plate which extend slightly below the majorvportion of thebottomof'thebase plate. These pads are formed with'M grooves 1 orserrationss 4 2y f as shown to prevent the collectionfofparticles of matterwhich mightget under the pads and edestroy the accuracyof the instrument.
InV use,r. the tool havingataperrtobe measured may be' supported infthe V of the V-block, ormay be'supportedby the surfaces 30and31. Gage blocks maythen'be stackedupon :the .surface .39 of the gagef block supportingmemberl in an arrangement such that the sine-bar and V block, are..
elevated toa point Where-thetop' surface of 'the taper measureszero when. a taper measuring instrument, is passed thereover, the taper' measuringninstrumentf being` p supported at precisely the same level-aslthey bottom surface ofthebase plate. It is understood'that the'base plate will.
be restingupon a truly level surface whichalso supports*Y thetaper measuringinstrument, since a sine-bar is alwaysused .in conjunction with some' true surface from which measurements can be taken.
I'hegase-blocksupporting-member 37V is also formed' with a second surface 44 to one side offthe surface 39and spaced vertically therefrom.l The surface 44 extends parallel i to the surface 39 fand zthus provides f a Vsecond surface foresupportinga stack of gage blocks;A
Itoftenrdevelops inemploying astandard setV of gage, blocks,A such as a Johansson. blocks, thatthe exact.y deslred'-V dimension Y cannot be obtained bybuilding up a-. number, of .thesek blocksvona. given gage block supportingV surface.
Therefore,- by providingra second gage block supportingl canbe1built-l up by standard blocks` is greatly. increased,
and accordingly the rangeoftapers-that can bechecked.v
isfalso'increased. Y Y
It is contemplated in place of using astandardset of4 gage blocks, that in certain instances a specialv gaging block-.of aLcertain specilied dimension may be provided. Thisis advantageous particularly in productionor semiproduction operationwhen a large number of tools having the-same taper are being produced.
The instrument thus described is desirably'formedmf.V
rear end of said sine bar andcooperating,withfsaidplanewv bottom surface of said-sinebar to define aligned recesses, the front end surfaces of said legs`V lying inta common plane parallel to the first-mentioned common'plane spaced rearwardly of the front end of said sine bar and cooperating with said plane bottom surface of' said sine bar'to deiine aligned recesses, a first cylindrical plug'extending transversely of said sine bar and secured in` the rst-mentined recesses, a:second'cylindrical` plug Aof 'the same y di arneteras' and' extending parallel'to said' rstplugsecured-` in5'th'ese`condimentioned recesses,I a'- base, means `on .saidf baise rotatably 'supporting saitlfi'st'plug-A permitting fswinge L surface,fsuch as .surface"44, the range ofv dimensions thatv ingv movement of said sine bar about the axis of saidjrst plug toward and away from said base, and a gage block support on the upper surface of said base beneath said second plug and engageable therewith upon swinging movement of said sine bar toward said base, said gage block support being located laterally inwardly of said depending legs to clear the' latterand extending into the space between said dependinglegs upon swingingmovement of-saidsine bar towardsaid'base:
2. In-combination,y asinefbar havingfa" plane bottom surface and a pair. of integralrdepending legs at opposite sides thereof extending in spaced parallel relationship from frontt'orear of'said sinebar, the rearend'surfa'cesofsaid legs lying in a common.planeperpendicular to said plane bottom surface and spaced forwardly of the rear end of said sine bar and cooperating with said plane bottom surface of said sine bar to define aligned recesses, the front endsurfaces-of said legs lying in a common plane paral-r lel tothe rst-mentioned common'plane spaced-rearward-f ly of the front end of said sine bar and cooperatingiwith saidplane bottom-surface of-saidrsine bar to define aligned recesses, a first. cylindrical plug extending transversely v ofsaidfsinefbar1 and secured in the first-mentionedirecesses,a second cylindrical'plug of the same diameter astantil extendingparallel vto said-first plug secured in the second; mentioned-recesses,fabase, meansvonsaid base rotatably'` supporting said first plug permitting swinging movement; ofsaidlsine Vbar aboutlthe axis of said iirst-plug towardand awap-fromsaid'base, a gage block support on theluppersurface of said base beneath saidsecond plug and engage able: therewith Vuponsw-inging movement of said sine, bar.' towardsaidbase, said gage'block support beinglocatedJ laterally inwardly of said depending legs to clear the latter and extending; into the space between said depending legs upon .swinging movement voffsaidsine bar toward said base,- and avr-block integral with said sine bar and projecting. upwardly from the latter, said Vblock having anV elongatedupwardly openingVf-shaped recess having its apex extending intaplanefperpendicular. to said1plugs andparallel to!y a=plane'thr.ough.theaxes of said plugs.
3.'y In combination, a sine bar` having a plane bottom surface. anda pair ofintegraldepending legsfatopposite: sides thereof eltending in spaced parallel relationship from frontto. rear of said sine bar, therear end surfaces Vof said' legs lying inacomm'on plane perpendicular to said plane: bottom surface and spaced forwardly to the rear end-.of-` said since' bar and cooperating with` said plane bottom surface of saidV sine bar to define aligned recesses,-. the front end surfaces ofy said legs'lyingin a common plane parallel to thefirst-mentioned common plane spaced rearwardly of the font end of said sine bar and cooperating.A withfsaidplane bottom-surface of said sine bar to definel aligned recesses, a first cylindrical plug extending transfy versely of said sine bar and secured in the first-mentioned recesses,- la second cylindrical plug;of the same diameterA as-andjextending parallel tovsaid first plugy secured inthe: second-mentioned recesses, a base, means on said base rotatably supporting said irstl plug permitting swinging.. movementof said k*sine bar aboutthe axis ofgsaid first plugytowardfandaway from said base, a gage blocksupporton the upper surface of said base beneath said second plugE andengageable therewithn upon swinging movement ofsaid-.sine bar toward said base,l said gage .block supportA being;located'laterally; inwardly of saiddepending legs lo. clear; the -latter andextending into the space between ,said depending legs upon swingingmovement ofsaid sine bari. towardl-saidlbase, anda V-block integral withsaid sine` bar andprojecting upwardly from the latter, said V-block having-jan elongated.A upwardly opening V-shapedrecess. havingfits apex extending ,in aplane perpendicular to said plugsaandsparallelftoa plane; through theaxes of saidV plugs; saidisinebar having a top. surface at one side of Asaid vblock:extendingparallel to. aplanethrough the axesA of said;Y plugs, andsaid V-block having a. surfacek extending;vv perpendicularztoi the axes; of,I said plugs ando` cooperating.,
with top surface to deine a recess of right angle coniiguration.
References Cited in the iile of this patent UNITED STATES PATENTS Bader Aug. 26, 1913 10 6 Virderber Mar. 3, 1936 Nierni Dec. 5, 1944 Christel May 29, 1945 VJisne .Tune 19, 1945 Hunt Oct. 22, 1946 De Sousa Jan. 2, 1951 Keebler Sept. 11, 1951 FOREIGN PATENTS France Dec. 17, 1945
US411693A 1954-02-23 1954-02-23 Combination sine-bar and v-block Expired - Lifetime US2756508A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878575A (en) * 1956-10-16 1959-03-24 William F Ganson Tangent square
US3245678A (en) * 1963-08-06 1966-04-12 Hank F Riehle Tool holder
US3423885A (en) * 1966-03-16 1969-01-28 Herbert D Crandall Sine v-block
US3824744A (en) * 1972-07-31 1974-07-23 R Petrant Multi-purpose work holding means
US4669227A (en) * 1985-06-24 1987-06-02 Treppner Bernaht C Angle plate apparatus with precisely adjustable workpiece holder

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1071289A (en) * 1913-08-26 Gustav A Bader Work-holding block.
US2032728A (en) * 1932-06-09 1936-03-03 Verderber Joseph Surface plate device
US2364546A (en) * 1943-10-25 1944-12-05 Niemi Robert Sine plate
US2376959A (en) * 1944-04-14 1945-05-29 Anthony G Christel Abrading wheel dressing means
US2378743A (en) * 1943-08-09 1945-06-19 Anthony E Wisne Sine plate angle wheel dresser
FR905852A (en) * 1942-04-16 1945-12-17 Hahn & Kolb Universal fixing or clamping equipment kit
US2409936A (en) * 1944-09-12 1946-10-22 Thomas E V Hunt Toolmaker's angle block
US2536629A (en) * 1945-09-28 1951-01-02 Sousa Frank P De Angle block
US2567517A (en) * 1946-03-01 1951-09-11 William C Keebler Vise and angle sine plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1071289A (en) * 1913-08-26 Gustav A Bader Work-holding block.
US2032728A (en) * 1932-06-09 1936-03-03 Verderber Joseph Surface plate device
FR905852A (en) * 1942-04-16 1945-12-17 Hahn & Kolb Universal fixing or clamping equipment kit
US2378743A (en) * 1943-08-09 1945-06-19 Anthony E Wisne Sine plate angle wheel dresser
US2364546A (en) * 1943-10-25 1944-12-05 Niemi Robert Sine plate
US2376959A (en) * 1944-04-14 1945-05-29 Anthony G Christel Abrading wheel dressing means
US2409936A (en) * 1944-09-12 1946-10-22 Thomas E V Hunt Toolmaker's angle block
US2536629A (en) * 1945-09-28 1951-01-02 Sousa Frank P De Angle block
US2567517A (en) * 1946-03-01 1951-09-11 William C Keebler Vise and angle sine plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878575A (en) * 1956-10-16 1959-03-24 William F Ganson Tangent square
US3245678A (en) * 1963-08-06 1966-04-12 Hank F Riehle Tool holder
US3423885A (en) * 1966-03-16 1969-01-28 Herbert D Crandall Sine v-block
US3824744A (en) * 1972-07-31 1974-07-23 R Petrant Multi-purpose work holding means
US4669227A (en) * 1985-06-24 1987-06-02 Treppner Bernaht C Angle plate apparatus with precisely adjustable workpiece holder

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