US2491612A

US2491612A - Height gauge scriber

Info

Publication number: US2491612A
Application number: US736224A
Authority: US
Inventors: Ernest P Jensen
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-03-21
Filing date: 1947-03-21
Publication date: 1949-12-20
Anticipated expiration: 1966-12-20

Description

HEIGHT GAUGE SCRIBER Filed March 21, 1947 2 sheets-sheet 1 EIEtl.

@wallon 5 /Oa/a Decj. 20,1,"1949 E. P. JENSEN 2,491,612

' HEIGHT GAUGE scRIBER Filed March 2l, 1947 2 Sheets-Sheet 2 vENE-:.2

JNVENTOR.

{A7/V557 0. JENSEN Patented Dec. 20, V1949 UNITED OFFICE `jujgvmriz inno-nrneven seamen Ernest P.- leeeni Wel Pek. Michnpplianonriarchlzi, 194i, serial No. n 736,224

fieeieswl-,eeitw This inventionrelates to.toolsand particularly toi-height gagesand height. gagescribers.

.Heretofore, vthe Astandard. practice.. of. .scribing lines.. on .machine ,parts-,templates and the like y .has been by height gageslwhich if `precision .made W would give a highdegreesof.accuracy. However,

.such Agages Werecostly .tomanufacture and. slow to `use and fthereforeunsatisfactory `for. many 1 jobs. l

standard surfaceor combination square gages ,fon -i It has. lalso been ...the practice.;.to ,use

this `kindu of Work,.lbut Lthe operating procedure l hasn-been. clumsyu and unstable and not lhighly accurate.

Anv important 'objectief` this .invention is toptoheightor. measuring. distancelthe parts. are iinmovably held.. inipositionor accurate.. use. LA further important. yobjectbfilthis inventionlil is to i provide an. improved.. device of. this .character -1 which is quickly.andteonyeniently,operablemand Yeasy to read.

yVariousv other-obj ect, Wadvantages. and .merito y .rious` features `willbecomeinore iullyappaiient `from the following,specification, appended-claims and accompanying drawings lwherein:

`Figure 1 is aside elevation of a tool deviceemfY r bodyingithe invention,

Figure 2 is a vertical sectionalview throughfthe l .device alongline 2'-2..otliigure 1,

. Figurey 3 is` a.. Vertical. `sectional .viewthrough i l the devieealong line -r-3ioffFigure 2,`

Figure 4 is a horizontaly cross sectional-view U taken along line Il-lOFigure 2,

. Figure 5 is :anienlarge'dvertical sectionalivew through thereleasable vlocking.` means nof the L device showing the Y. parts .in-lockedfpos-ition, and

Figure dis a .perspectiveyiewiofthelocking meansoflFigure 5.

l In. the .drawings,. theinvention is illustrated? as applied to a height gage scriber. The illustrated l embodimentflofthel invention comprises a base `Iii which .may beshaped. at .onemendwithleonverging side wall :sections Hl-J2 lfaseshowndn if Fig. 4. Supported. by'gthel ba'seis anwuprht .Y member 4or column--A in thafiorm/f `a blade# I Aof substantially rectangularl cross sectional. forma-1.

tiene-,S Shownin Eine. Thebladefmay-begsllpported in ,any desirable way from, thebasel I 0, and as shewn hereinthe, base may belprovdedwitll, a yertioal.rectangularmaperture of a size to .sljdahly receivethe lower end .of theblade and across pin i S` may beemployedtolook theA bladein the base. l Throughoutthe majorpnltionbf its. length the Vcolumn .or blade4 .l 4 H.is providedA withi a seriesbf recesses orvholes ilwwhiehA are equallyfspaeed apart, ,and in the.. presentemb'odiment of `tlliefln- .K Vvvennen haveA their axes,` sbaced...one inoh.,.apart. .-.Qna side `of the bladdmay be. provided, with` a ..s11al1.0.w.g1oove. 2.29., r1m`ning, centrally thedength ,thereof yinto. which the. holes 18., open Inch l.designation. `may beretche'd or otherwise formed on nthelocttinncof xthe. groove for `indicating `an initial :..setting in inches of ...the marking .implementabovethe bottom .of. the.base Jl U.

Movable L on i the ,blade .J4 is a scribing implement which is `capable .of fine adjustmentto a desired distance o1; height withrespect tothe bottom lsurface ofthe base IU. .i This implement comprises; .an upper .member or collar., 22; en- `.circling the blade, a lower Amember or collare i similarly Aencircling the blade `and a coupling sleeve` .2E i likewise; encirclingjthe blade which. ex- ,tends between thetwo members and adjustably .,securesuthetsame together.4 for` jointl or. inde- .pendent movement on.theblade... l4. The collar members .areslidably but nonfrotatably mounted ....onthe blade. ,Inorder toforrn a stable'accurate `operating,dei/ice.. .theis preferably accomplished .by .providing botliycollar` members. with .en :axial or., central .passage...0f a .rectangular .Sbefpennd sizetoslidablyreceive the blade. l The tolerances .prpvideclbr theslidlng ,t .aresuehthet the collar .'.meinbersnave enlrgther ariel movement .along .tne blade. being held .against ,any `movement..431 `play- ,rotatably or' angulatiwith respect to i the blade members.

.ilhecoller membersand the ,sleeve ereso oneretively coupled together that rotation,ofthe. .1atter ...will Leitner .draw the... tivo members together or move'. them further apart dependingv onfthe direc- ;.tion ofrotationof Athes 1eeve. This., is accomplished in a .novel manner. by providing theupper `.collaiz `with a .downwardly projecting reduced .end .secti 011,28 .which is*externally"threadedflas provided with an upwardly projecting reducjed end section.32 which isi externally threadedfs ...whichengages thethreads `3D. on the upper collar and *can .internally` threaded` lower portiorrg38 aioiis which engages the threads 34 of the lower collar. The externally threaded portions 3l) and 34 on the two collar members are reversely threaded with respect to one another. That is to say, one may be provided with right hand threads and the other with left hand threads. The internally threaded

portions

36 and 38 of the sleeve will be threaded in a direction to cooperate with the threads on the collar and cause the same to draw toward one another when rotated in one direction and to separate away from one another when rotated in the opposite direction.

The upper collar 22 carries means which will lock the collar to the column or blade I4. This means comprises a spring actuated plunger 40 shown best in Figure which is engageable in the recesses or holes I8. The plunger 46 is mounted in a bore in the upper widened body portion of the collar 22 for reciprocating movement toward and away from the blade and is of a size to slidably fit the apertures I8 so that the collar is --locked against movement. The bore in which the plunger 46 is received is widened toward its outer end and internally threaded as at 4I to receive a sleeve or nipple 42 in which a cylindrical passage or chamber 44 is located. The passage 44 is oversize with a portion of the plunger 40 extending therethrough. A coil spring 46 encircles the plunger in the chamber 44 and is seated at one end against the outer wall of the passage 44 and at the other end against a circular flange 48 carried on the inner end section of the plunger.

The outer end of the plunger projects through the nipple and is provided with a swingable finger -operated handle 5D which may be secured in any suitable way to the plunger 40 such as by the screw member 52. The handle and the nipple member are provided with cooperating cam surfaces which upon rotation of the handle which retracts the inner end of the plunger 40 against z the resistance of the spring 46.

As shown in Fig. 6, the outer end of the nipple is shaped with a V-shaped cam 54 which normall: ly projects into V-shaped slots 56 on opposite sides of the handle connection to the plunger.`

Normally` the position of the parts is that shown in Fig. 6 wherein the surfaces of the cams 54 and i 56 are in substantially contiguous relationship. It is obvious that upon rotation of the handle 56 that the cam 56 thereof will ride up the cam sur- 1 faces 54 and retract the plunger from the recesses I8. The plunger 46 is self-operable to enter any All that is necessary for actuated into any one of the recesses I8 following further shiftable movement of the assembly on the blade.

The lower collar member 24 is provided on one .side with a lateral projecting marking implement or scriber 58. This scriber element may be den tachably secured to the lower collar member by I providing a tongue 66 projecting therefrom as .shown in Figs. 1 and 3, and securing the rear end I of the scriber to the tongue by a clamp 62 which is removably secured to the tongue 66 by a set screw 64. The opposite side of the collar member 24 is provided with means for locking this member to the collar or blade I4. This means .comprises a screw member 66 which when threadedV inwardly will engage the blade I4 as 4 shown in Fig. 3 to hold the collar against movement. When making the nal adjustments of the gage, the screw member 66 is retracted to allow the lower collar 24 to move relative to the upper collar 22.

In order to accurately measure the height or distance that the scriber 58 subtends to the bottom surface of the base I0, novel means is employed cooperating with the two

collars

22 and 24 and the coupling sleeve 26. Referring particularly to Fig. l, the collar 22 is provided with a plate 68 which is secured thereto by a pair of screws 10. This plate projects downwardly in overlapping relationship to the coupling sleeve 26. Secured to the lower collar 24 is an upwardly projecting arm 'I2 which overlaps upon the plate 68 and is provided with a pointer 14. The pointer I4 is adapted to sweep a vertical scale indicated at `I6 carried by the plate 68.

Preferably the plate is constructed as shown in Figs. 2 and 4 of two plates mounted in parallel planes. One of these plates is the outer plate 68 previously described. The other plate is indicated .at18 and is located inwardly of the plate 68 and normally is not visible unless the plates are viewed from the top or side. The plate 6B vis further provided with a dished out channel section 80 running vertically of the gage and cooperating with the inner plate 18 to form a vertical passage through which the arm 12 is guided as shown in Fig. 4. The dished out channel portion is cut away for the major portion of its length opposite to the scale 'I6 to form a vertical elongated slot 82 through which the pointer 'I4 previously described projects in the manner shown in Fig. 1.

Indicia or markings on the scale 'I6 represent` a distance of travel of one collar member relative to the other collar member for one revolution of the sleeve 26. If the spacing of the recesses I8 are one inch apart as previously described, the scale I6 may be subdivided into ten increments so as to give readings in hundredths of an inch. Thus rotation of the sleeve 26 will either raise or lower the scriber carrying collar 24 and the distance of travel is measured by the pointer 'I4 and the cooperating scale 16. To further accurately measure the distance of travel of one collar member relative to the other, a second scale is employed which is mounted on a peripheral portion of the coupling sleeve 26. Referring to Fig. 1, scale 84 is shown encircling the coupling sleeve and preferably subdivided into one hundred increments so as to give readings of .001 inch. A reference point carried by the plate 68 cooperates with the scale 84 to measure the variation in height of the scriber when the sleeve 26 is rotatably adjusted. This means comprises a wire 86 supported by the plate 68 so as tovextend parallel to the axis of the column or blade I4 and to expose the scale markings to view on both sides thereof. y

The two

collar members

22 and 24 are secured together against complete separation but within the limit of their maximum separation, they are adjustable toward and away from one another by the sleeve 26. The means preventing complete separation of the two collar members preferably comprises a pair of bolt members 88--88 which have their upper threaded extremities adjustably engaged in the upper collar 22 and their heads 90-90 received in passages 92-92 of the lower collar 24 as shown in Fig. 2. The passages 92-92 open out through the bottom side of the collar 24 and are reduced in size before opening out through the upper side of afi-saaie s eener., The r eafemeeaeil liasses@ 'lfsnemaeew iwnantn meesteres; methaan winl aber; aenlrpy man" fermer understandable from the' previous description.`

' ment of? the: cenar assembly thelp'iunger se wm automatically `enter the hole I8 opposite which it is broll'ght'tolo'cl th'u'ppe'r Collar 22` to the blade, By` turning internally tnra'ded sleeve is f inl one Clllecti.Carl;` the' -lovve' collar 2 '47 vvill travel upwardly, advancing-i .100 of' an ichf` per revolution, The pointer 14' tavelswith the collar indicating each rvolution' tlef 'rdlihtd Scale i.l In the presentleinbo'diinent', then evolutio'nsof the sleeve completeone1 inch adistment of the scriber' 53.`

' The peripheral Sfcal'- fvill" givev readings. of the' ionrotatabl'y fit tlie column and having means" for feleas'ably engaging" said recessesfin the col"-` uninV to lock" the rnb'er' against movement" on the column" at a` plurality of positions therealng; a" second" cenar member navi-ng' a" @entrai aperture therethrough' oi a s'iz'e to slidably but nbn-rotatably` fit" tli'e c'o'liirnh and" having a laterally projecting sbibe'r element, said members having threaded portions thereon reversed in directin afsJ ton'e antler, an internally threaded coupling s1eeve. e;gtending.between said collar members and s`o` thr'ead'e'dly engaged therewith thatgupon rotation V ofthesleeve in one direction the members are drawn toward one another and upon rotation ofthe sleeve in the opposite direction the members are s`el ara`ted apart from one anotherf a plate carried by one of said collar members and having .a vertical scale, a pointer Calriedtbwtheother Vof` said A collar members'V and adapted totsweep..the scale and indicate' the distance of travel of the members relative toi one another, uand a scale encircling the sleeve and cooperating-with. a reference on the plate to indicate the distance of Itravel-of thetrnembers relative to one another when the sleeve is moved less than a complete revolution. y d

2.` A7 height gage comprising; in combination, a column having one or more longitudinally extending flat sides and provided with a series of equally spaced apart recesses opening out on one side thereof, a collar member having a central aperture tf1l'etl'lllg"h"iofA al S'l' to' Slilalllfy14A but noli-rotatably fit the column' and' YHai/fingV liiaii fof releasally engaging' saidV` recessesijni the' colf-f umh to k the"llienl'kel` agallilovelt' fl the column" at a plurality o"f posii'ioris"therealon'g;- a second Collar member' having ardntl'al" api ture therethrough' of a" sito slidably but non! rotatably t' the colinli4 and having a'latelally proj 'ecti'ng' s'cribei" elmelrent;said.A members" having threaded portions' tliiieorl' reversed" in" direction as to one another internalllfyr tliretwledy colf-v pling'sleeve extend' g between said? collar men-iQ- bers and so threadedly engaged" therewith! that upon rotation of' the sleeve in one direction' the' members are drawn' toward? o'ne anotherl and upon'rotation of the' sleeve in the opposite direc-- tion the' members are separated apart frnl o e another, a plate' c` rried by o'n of said' col members and projecting toward the other collar' member in overlapping relation to the` coupling 51e-weeen plate having a verdeel scale can; brated to measure the" distance of travel of the members relative to' one another for eachvcomplete revolution of thel sleeve,` a pointer carried. .by said other cella'r-A member projecting to' rd 'the plate and positioned for indicating on the scale the distance of travelo? the twfo members relative to one anothensad sleeve l'iavingf a circular scale extending tlir'ea'round and posi` tioned immediately adjacent to' said plate, and a reference element on said plate` cooperating with the sc'ale on the sleeve for indicating the? distance of travel of thetwo members relative to' one. another when the sleeve is .an'giilaflyad'n jusjtedY less .than a. complete revolution.

l 3. A height gage comprising'jincombination)a' standard of non-cylindrieal crossseetion, a? bas therefor having" its under surface: norlialv to'ltli`e' axis of thev standard; almember encircling the standard and having' a sliding butnorirota'tabl t on the standard, means for ril-Xing saidmember to the standard at equally spaced apart in-t tervalsk therealong tvowh'old the I'nehlber aga nfs't'y movement, a l second member encircling the;

'standard and having a sliding but nonLrotatabl'e.

upon rotation' in theopposite'A direction to sepa'- ate the members one" fromthe4 other',` one of said members carrying a graduated Scale extending in parallel relation t'o' the' standard; a pointer carried by theV other member adapted to sweep' the scale'as the two' me'ribers move relative to one" another,Y a graduated Scale carried on' the ebiterior surface of said sleeve and extending subf stantially therearound, and a reference point carried by one of said r'ner'idbes adapted to sweep i' the' scale on the sleeve as the latter is rotated.

4. A height gage comprising", in combination, ai standard of non-cylindrical cross-section, a base therefor having its under surface normal to' the axis' of the s'tanda1"d,' a I'Iier'nbe'r encircling thf standard and havingla sliding but non-rotatable' fit on the standard,`l means for fixing said? ir'ier'ri-v ber to the standard at equally spaced apart intervals therealong to hold the member against movement, a second member encircling the standard and having a sliding but non-rotatable lt on the standard, a scriber element projectionably carried by the second member, said members having threaded portions thereon reversed in direction as to one another, a rotatable sleeve encircling the standard and having threaded potions engaging the threaded portions on the two members, said threaded engaging portions adapted upon rotation of the sleeve in one direction to draw the two members together and upon rotation in the opposite -direction to separate the members one from the other, a plate carried by one of said members having a graduated scale thereof extending in parallel alignment with the axis of the standard, a pointer carried by the other member and .adapted to sweep the scale as the two members move relative to one another, an exposed grad- :uated scale carried by the sleeve and extending :substantially therearound and around the axis of the standard, and a reference point carried by the plate adapted to sweep the scale on the sleeve when the latter is rotated.

5. A height gage comprising, in combination, a base, a blade of rectangular cross section supported in upright position on the base and provided with a series of equally spaced apart holes for a portion of its length, a pair of collar mem- .bers encircling the blade having passages therethrough of rectangular cross section which slidably but non-rotatably fit the blade, means extending between the collar members connecting the two together but providing limited slidable movement of one member with respect to the other member, a scriber element projectionably carried by one of said collar members, a plunger carried .by said other collar member normally yieldably urged toward said blade for engagement in the holes thereof to lock the collar member to the blade at a plurality of positions therealong opposite each hole thereof, manual control means for retracting said plunger from engagement with the holes of the blade, a sleeve encircling the blade and telescopically overlapping upon the two -collar members, threaded portions on said sleeve and on said collar members engaging one another and so cooperatingly related to one another that upon rotation of the sleeve in one direction the collar members are drawn toward one another and upon rotation in the opposite direction the collar members are separated from one another, a plate carried by one of said collar members extending toward 'the other collar member over said sleeve and having an exposed graduated scale extending in parallel alignment with the axis of the blade, a pointer carried by the other of said collar members and adapted to sweep the scale upon relative movement of the collars toward and away from one another, an exposed graduated scale on the sleeve extending circularly around the axis of the blade, and a reference point carried by said plate adapted to sweep the scale of the sleeve whenA the latter is rotated.

6. In a height gage including a vertical column and a pair of members mounted on the column in encircling relation thereto and spaced vertically from one another, said members having threaded portions thereon reversed in direction as to one another, means for holding said members from rotation relative to the column and for locking one of said members to the column against movement therealong, an internally threaded coupling sleeve extending between said members and so threadedly engaged therewith that upon rotation of the sleeve in one direction the members are drawn relatively toward one another and upon rotation of the sleeve in the opposite direction the members are drawn relatively away from one another, a plate carried by one of said members and projecting toward the other member in spaced overlapping relation to the coupling sleeve, said plate having a vertical scale calibrated to measure the vertical distance of travel of the members toward and away from one another, a pointer carried by the other member and positioned with respect to the scale on the plate so as to indicate on the Scale the distance of travel of the two members toward and away from one another, an exposed circular scale extending around the sleeve, and a reference element carried by the plate and cooperating with the scale on the sleeve for indicating the distance of travel of the two members toward or away from one another when the sleeve is angularly adjusted less than a complete revolution.

7. In a height gage including a standard and a supporting base therefor, a member encircling the standard and movable therealong, means for fixing said member to the standard to hold the member against relative movement thereon, a second member encircling the standard and movable therealong, a scriber element projectionably carried by the second member, said members having threaded portions thereon reversed in direction to one another, a rotatable sleeve encircling the standard and having threaded portions engaging the threaded portions on the two members such that upon rotation of the sleeve in one direction the two members are drawn toward one another `and upon rotation in the opposite direction the two members are separated from one another, one `of said members carrying an exposed graduated scale extending in substantially parallel relation to the standard, a pointer carried by the other member adapted to sweep the scale upon movement o the members toward or away from one another, a graduated scale carried on an exterior surface portion of the sleeve and extending substantially therearcund, and a reference point carried by one of said members adapted to sweep the scale on the sleeve as the latter is rotated.

ERNEST P. JENSEN.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 476,806 Mauser June 14, 1892 1,282,030 Benamelis Oct. 22, 1918 1,322,302 Knab Nov. 18, 1919 1,326,970 Row et al. Jan. 6, 1920 1,583,126 Crane May 4, 1926 1,596,618 Morrill Aug. 17, 1926 FOREIGN PATENTS Number Country Date 546.157 Great Britain June 30. 1942