US1046613A - Miter-box. - Google Patents

Description

H. LEGER.

MITI-ZR BOX.

APPLIOATION FILED 00130, 1911.

1,046,613. Patented 110111111912.

4 SHEETS- SHEET 1.

MQW

H. LEGER.

MITER BOX. l APPLICATION FILED 0013.30, 1911. Y 1,046,61 3. i Patented 1360110, 1912.

, 4 SHEETS-SHEET 2.

2 .Ga/w M fw '@@11221 v y? 5 Patented -De0. 10, 1912 4 SHEETS-SHEET 3.

H. LEGER. MITER BOX.

WWW/lli APPLIUATTON FILED OOTfSO, 1911.

H. LEGER.

MITER BOX.

APPLIGATION FILED 00T.ao, 1911.

Patented Deo. 10,1912.

4 SHEETS-SHEET 4.

im@ sans Pinziet OFFICE.

HENEY LEGER, or BOSTON, MASSACHUSETTS.

Specicatien'fof Letters Patent. vApplication .filed October 30, 1911. Serial No. 657,514.

Toalt whom t may camera,.-y

Be it known that LLHENRY LEGER, of

Bostem-in -the county of Suffolk and-State of Massachusetts, have invented certain new and useful Improvements in Miter-Boxes, of which the following is a specification:

This invention relates to miter boxes,-and more particularly to folding miter boxes.

The object of the invention is to provide a miter box which has a .wide range of capacity, 'which canbe adjusted to cutl any. de-

`slred angle, Which has provisionffor' cushionadapted to be mounted ona Wooden horse or,

to occupy a comparatively smallspace.

Accordingly, a Y feature of-the invention contemplates the provision of a miter box having a Work rest or vertical face-plate any other suitable support. This work rest may be provided with extensions hinged thereto and 4adapted to be folded up out oir'v Uthewayfor transportation, or lowered to produce a long back or vertical support for the material which is to be Jsawed.,

,A Vfurther feature of the. invention contemplates the provision of means for var vi lng the height of the saw, as by a telescop`v ing lstructure, and, this structure may be utilized for pneumatically cushioning the saw. 1

A vfurther feature Acontemplates the Y provision of means for securing the saw guidel so that any angle be cut; -In its present embodiment means'are prov'ded for locking the guide automatically at 'the morecommon angles, which locking means can p be released by means-operated bythe saw,

and means are also provided for clamping the saw guide in any Other features of the inventionwi'llbe referred to in connection with the specific description of. the illustrated embodiment of the invention.

The several-features -of the invention will be clearly understood from .an inspection of the accompanying 'drawings and the following detailed 'description of the construction shown therein.

In the drawings Figure 1 is a plan view of the miter box with a saw in position for cutting a board at right angles to its length,

Fig. 2 is a side elevation of the same, Figl b 2a is afragmentary view of the locking egree of singularity.-

'and tripping'mechanism, 3 is a- .sec-

tional front, elevation taken on the line 3 3 in. Fig. 2, Fig. 4 is a side elevation'of themiter-box `in folded position, Fig. 5 is a vertical section taken on the line 5 5 in Fig. 3, showing-the telescopic structure in extended position, Fig. 6 is a horizontal section on an enlarged scale taken on the` line 6 6 in Fig.v 5, Fig. 7 is a fragmentary -side elevation of a modified form of saw guide, Fig. 8 is anend elevation of thesame,

and Fig. 9 is a. detail/sectional View ofthe pneumatic cushion controlling device.- Y

As yillustrated'in thel drawings, the device comprises va work rest 10, having'a .front or work-engaging `face formed by the finished faces of ribs 12. .The-lower edge ofthe Work rest is provided with afiinished face 14, whichis at right angles to the Work-engaging face l2. The work rest is formed VWithtwo vertical-sections separated by a slot 16 through which the-blade 18 ofthe saw can pass. The vertical sections are joined to an offset bar 20, which 'also hasa finished v-front face. The offset bar is adapted .to be clamped to any suitable support 22, having a flat upper face for` engagement by the face 14. AThis support maybe a wooden horse, a=plank, a bench, orany other 'suitable support. The device is clamped to said support by means of hooked 4screws 24 having laterally projecting fingers 26, whichengage the under side of the support 22, The threaded stems of the screws pass lthrough bosses 28 on the rear of the crossbar and enter nuts 30, which bear against the upper ends vof said 'bosses Screws 31 may beprovided, having their ends'pointedand projecting below the finished surface' 14 to' enter the top surface ofthe' support' Patented Dec. 10, 1912.

to which 'the device is attached. 'By this with ribs es; having finished' faces which are in the plane ofi the faces of the ribs icprevent the' escape of air therebetween, and

are' adapted 'to be held in adjusted position by knurled clamping screws 48. A periphe'ral groove,50 is formed in the exterior of' eac-h plunger, which is adapted to receive the inwardly projecting ends 52.0f a wire spring 54. These springs lie in grooves near the upper ends ot the sockets 40; 42, and the ends 52 prevent the accidental withdrawal of the plungers from their' sockets,

as shown. in Fig. 5,

Slidably mounted within the plungers 44 an'd 46, are plungers 56 and 58, respectively,

having their upper ends secured in a crossbar 60, by means of .threaded caps 62. Ther plungers 56 and 58 tit the plungers 44 and 46 so vaslto prevent escape of airtherebetween, and are adapted tobe held in adjusted position by means of screws 64. 'The plungers' 56 and 58 are hollow and are provided with screw threaded plugs66 in theirv lower ends, said plugs'havinga central passage 68. Theupper ends 'of thev plungers 56 and 58 are vprovided= ;-with air passages 70 and .72, 'respectivelwhich communicatewith an air passage '74 extending 'entirely through the cross-'bar' 60, and. also' with similar passages v76, 78,` respegztively, communicatr'ng 'with the .external atmosphere."1

The passa' es 76 and 78 are adapted to .be controlled y screws 80 and 82, respectively.' Thus a pneumatic 'cushion-for '.the saw4 is formed within the telescoping structure, which can be controlled' bA either of the screws 80 or 82. 4By regu atin' either ofA said screws sc that lthere'is o yfa slight air discharge throughf'the `correspondmg passage, the weight with .which .the saw.

bears upon the material being sawed can j be regulated so that theylatter will not-be torn or splintered. -Although two regu1ating screws are shown, it will be understood that only one need be employedf By means of the aboveteles'eoping structure, the vertical capacity of the device is greatly increased. 4

The sawiding means comprises an arm 84 pivoted I); a screw 86 ,in a boss on the cross-bar 60. A stud 88 is secured in the arm 84 bya set screw 89, and depends therefrombetween the sockets 40 and 42. :Said

1,046,6 is l embracesthe-rod 126 and is hel 'tendin l c .one -o the holes 122, and automatlcally stud is-provided. with a slot 90 to receive the blade 18' andthe back- 19' of the saw,

the lower edge of the back being adapted to rest on the shoulders formed in the slot- 90. The arm 84 is bifurcated to provide bars 85 and 87, which straddle and are adapted to bear against a sector-shaped web 92, having van arcuate slot 94. A' clamping screw 96 on the arm 84 passes through the slot 94 and is adapted to clamp the bars 85 and 87.against the web 92 to hold thc saw at any degree of angularity as determ'inedby Athe protractor 98 mounted adjacent" to the slotf94.

.livctally mounted-in ears 100 on4 the arm 84 is an arm 102, which forms' an extension of the arm 84 and carries the from: stud of the saw guide. In the embodiment shown in Figs. 1, l 2 and 4,' thusstud 104 is slotted similarly to the' stud 88, and is held remova'bly in the outer end ofv -the arm 102 by a knurled nut 106. 'Ihestd 104 is cut 4away at 108 to -clear the-endcof the bar 87,l

as shown in Fi' 4.4 When it is desired to fold -up the device, the stud 104-is removed' from the outer end of the arm 102, the arm.- is then'swung oyer into the 'position shown in Fig'. 4, and the stud is inserted as shownf vin thls ligure and secured by the nut. 106;` "Ihe head of ascrew 1120,'carried 'by a plunger 112 to be hereinafter' described, pro- 'jects into the-enlarged portion of lthe ,saw

'guiding 4slot, yand when the nut 106 is screwed down tightlyto drawv the stud upv into position,l this screw head prevents the, arm from Swingin upward.

loo

In a modified orm, the stud 104 is rejplaced'by al stem 114, pivoted between ears 5116 on 'a'n arx'n- 118 similarto the arm 102,4`

and 4clamped by d iscrew 120.

In prder to automatically lockthen saw 'guide in any one of the..- more lcommon angles, such as 10', 22.5, 30", and 45, I provide a. plunger 11'2, which is adaptedto entergany on of the holes 122-formed in the .sector-shaped web- 92. .-"A rod 126 is `slidably mounted in e'ars`t128 and.'130 on the side of the arm/84, and is provided with a laterally projecting ltinger 132- which is Y connected' to' the 'plunger 112 by the screw 110, The plunger 112 is s lidably mounted 'm a lug :113 projecting upwardfr'om the endl 'of 'the bar 87. A coiled 'spring 134 between a" pin 136 onlsaid'rod and the ear 130, thus normally to keep the plunger in pushing said plunger' into one of said holes whenever.- the former comes .opposite one of the latter. A i

In order to release the saw guide, I provide a tripping shaft 140, on the side of the bar 102. This shaft is `provided at one end e path of the,

with a laterally projecting lui 146, which is' -idapted to be brought into t opposing endof the'lrold .afterif'tliirnuf 102"has` been swung upfintd thev position'v Thisfis accomplished by shounin Fig. 2a.A y raisingthe handle .of thesawr "'A knob 1,48

' 5 isA provided atl the opposite endof said shaft,

ula-nbr the latter'may be moved m'anually, l.4 but .when the arm 102 is swung upinto the'.

position indicated in this ligure theknob anddlug on the shaftcause the latter to r0- 'tale partially automatically so that the lug i-lt drops into position opposite the end of the rod 126. Then when the saw and the arm are lowered into horizontalposition, t-he lug engages the end ot' the rod 126 and i -pushes-tl1e latter to draw the plunger 112 from the web 92 and release the arm 8l so that'the saw can be swung in any desiredA direction. Then it is desired to release the plunger to-lock the arm Si, the knob 148 I is grasped and the shaft 140 rotated slightly to swing the' lug 146 outA of the path of the rod 1.26, whereupon the plunger is free to enter any one of the holes y129, which it Will j do as it is brought opposite the same. When it is deslred to secure the saw guide at any 3o tal position, the latter can be swunfr to anv intermediate p oint'vitis clamped by means of the screw 96.' When the clamping screw -96 is released and the plunger is held by the tripping shaft with the. saw in horizonposition within the capacity pf the device as indicated by the'protracto98.

Thile I haveillustrated and described a preferred embodiment ofthe invention, I

am aware that many modifications can bel made therein by any' erson skilled in the art without departing rom the scope of the ,invention as expressed in the claims. Therefore I do not wish to be limited to all the j4o details of construction shown 'and described, but y What I claim is z`- 1..A\ miter box,comprising a vertical work rest, a,. pair of tubular' sockets on the 're'st, a. barya pair ofpplung'ersdepending from the underside of said bar and arranged to vslide 1n sald sockets, an arm plvotally mountfdon s aid bar, a pair of sawguiding" studs depending from the under side of said arm, and meansfor regulating the speed withA which `the plungers "are llowercdin said sockets.-y y 2. A miter box, comprisingl a jwork rest, an adjustably supported'bar'crried by the workfrest, a jointed arm pivota-lly mounted on sald bar andprovided with saw guiding fst-uds, spring actuated' .means for locking said arm, and lmeans for` releasing said arnn-said 'releasing means .beingoperated b v 6`0 swinging one section ofthe jointed arm relatively to the olla-|- uponthe joint.

3. A lniter box comprising a face plate,'a;

pivotallv mounted saw guide, telescoping means .for Varying the height ofthe saw comprising an air chamber, and means for Vomit-rolling the` esape of 4air from said Chamber. 'I

4i-. niiterbox, comprising a ,Work-resa means for securing the rest upon `a supporta'.

extcnsions--hinged 'to said rest havingtheir 5.. A n iiter`box, comprisingr ahwork rest,

4means for securing the rest upon a support, a pivotally xupi'inted saw guide, means comprisingl a spi-lng" pressed plunger for auto- 'maticalb7 locking said guide, and means operable b v the saw for releasing said, guide.

6.' A'miter box, comprising a Work rest haring two finished surfaces at right angles work-engaging faces in the. plane of .thel

tiox

.to one another, a pair of extensioninembers pivotally connected to the ends of said rest and having their work-engaging faces lylng 111 the plane of theA work-engaging faceof `said rest, andv apivotally mounted saw guide. p

' niiter box, comprising awork rest,` a pair of tubular sockets, a saw guide, plungers on said saw guide arranged' to slide in said soekets.and means for holding said` plungers in adjusted position.

S.' miterbox, comprising,a'tivork rest.,

a pair of tubular sockets, a sau' guide, hollow plungers on said saw -guide arranged- I.to slide in saidsoekets and forming a pneu? matie cushion for the sau', and Ameans for regulating the escape of air from said cush` lion.

A unter box. comprising a work rest, extensions pivotallymounted on said work .restwhich have their wordt-engaging faces 'in the same plane, means for clamping the rest upona. support, anda sau* guide.

10.1 A miter box. comprising a work rest,

a pivotally. mounted saw guide,`a plunger f for locking said guide. a tripping shaft arranged to release said plungeiuan'd means i -forclamping the guide in any vdesired posi` tion.

11. A miter.box,. comprising aV work rest, und a folding saw guide provided with'a joint intermediate .itsl length, whereby one partmay be :t'oldcd` over upon another.

12. A miter box, comprising a work rest, a pair of sockets, a -pair of plungers'.slidably mounted in -said sockets, a bar connecting the plunger-s, au arm pivotally mounted on said bar. a pair of saw guides depending' fromsaid arm, and means for securing said arm 'in adjusted position. V 'l 13. A miteibox, comprising a work rest, a pair of plungers slidably mounted on said rest, a pivotally mounted arm carried byY said plungers, means Afor lockingthe arm against rotation, and means operable by the saw for releasingl the locking means.

14. A miter b ox, comprising a work rest, a pair of sockets, a pair of plungers slidciishionand,a pivotally mounted saw guide length, Whereby-v one partimay be folded 10 'parried by said plunger. over upon nother. I

,"715. -A miter box, comprising a work'rest, In testimony whereof rI have affixedl my a'saw guide, and telescoping means constisignature, in presence 'of two witnesses.

5 tl'ting an air clisliion for varying the'heighi; I t I HENRY LEGER.,

16,'A miter box, comprising a work rest l Witnesse: i

of the saw.

" and a `pivotally mounted `folding vsaw guide HENRY CLARK BAILENTINE,

' WILLIAM J. SPERL.-

provided with a joint intermediate its

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