US1805022A - Work holding device for miter boxes - Google Patents

Description

l May 12, 1931. E. soDERGREN WORK HOLDING DEVICE FOR MITER BOXES s sheets-sheet. 1

Filed April 8, 1950 L INVENTOR. EQ/o SODEec/QEN BY a I ATTORNEYS.

May 12, 1931.y E. soDERGREN WORK HOLDING DEVICE FOR MITR BOXES Filed April s, 1930 s sneets-sneet 2 E n Mf//U R. N Ml\ E Q ILIILF-- m6 m A QN mw 5 my N .n.rl QN \N Q\ w LI. Q C+..

May l2, 1931. E. soDERGREN wom: nomme DEVICE FOR umm oxEs Filed April 8. 1950 3 Sheets-Sheet. 5

r@ A 'ITQRNE 42 /c 500E/@GEEN Patented May 12, 1931 ERIC SODERGREN, OF (SIERRA MADRE, CALIFORNIA ,'womi HoLiiiNefnEvicE ron Mirna Boxes appiieation yined,--iipiiiqa 1930. seriai No. 442,629.

invention relates to and has .for Ya purpose fthe zprovision,of .a simple, ysubstantial .and .inexpensive material-to fbesavved in amiter box, canbe .5 secu-rely .held inthe latter lin a fixed position .orssavving thus greatly eXpeditingt-he savving...operati-on andfenablingsuchoperation to bfefeurately performed, as Well as preventdamage tothe .saw resulting from shitt- 10 iligeof :theimaterial When the latter is savved through. I e 1 A lt iis ,a ffurther ,purpose ofimy invention to ,I novide ,.a `Work holding device of ,the above ,described character by vWhich materialcan l5 bersecurely `held .in `the ymiter rbox .in Iclose proximity to .thesaw lirrespective of the agular `position of lthe savvguide so that --eX- Qtrenielyfshort elengthsioit .material can be ..2 10- .llratjelyksawedand Without `any possibility 29 that I:the material ,will become, displaced during the-sawinghoperation.

i 1113isanotherpurpose of ymy invention to ,provide a Work holding device by y'Which-,nia

.terialcan be .savvedin' a miter box atangles 25 .less thanispossible with therange of.I adjustment provided by the adjustable-savvguide oithemter box. f

lltis stillianotherpurpose offiny invention toprovide 4a Work holding device Whichean :lo befinthegnatureof an attachment capable of being readily zaPPledto conventional imiter .boxes kWithout `modifying the construction yof .,tbelatteil. l Y v dl will describe only oneform of vvork hold- 3-5 ing device lfor miter boxes embodying my invent-i011 and vWill thenfpointoutthe novel featuresthereo'f in claims..

T111 .the accompanying drawings, Figure l is a view shovvingfin plan, one

4 .termoli workholclingdevioe embodying my invention, f applied v,to ya conventional mtl" box.

lFguresQ and ,3 `are vievvs inside .and end elevation respectively, ot the device and miter ...Q9 @ating hp manner Yin lwhich `r a relatively device by which .lengths ,of

short length oitmaterial -is held by the device Jfor sawing, and

Figure 9 is a view'similarto Figure8,:illus trating thefmanner in Whichthe device is utiliz'ed when materialis-tobe saWed lat an val1- gle beyond the `.range of ,adjust-ment provided by the miter ,boX.

Referringspecifically tothe drawingsin which similar reference characters -designate similar parts Vin each of the several vievvs,. my inventioiiinits present. embodiment is kshown associated with a conventional forml oimiter boX including a bed. or-sawtable 10, roinone longitudinal edge of which projects .upwardly, a back rest 11 adaptedfto cofact-Wit-h the bed in supporting ,a .lengthof material for sawingby asaw l2 slidably mounted ,in .the slotted posts 13 oi' asavvguide 14 pivoted at 15 on the bed for adjustmentto varythel an-A gle at which theinaterial Will be sawed, all

of which is Well known and Will be Aunderstood by those famili-ar with ythe art.

My .invention 4in Aits present embodiment comprises two holding units'U ajudU which are identical in construction With theeXceptioneto be later pointedout. A detailed description kof one unit Will suflice for both, and to distinguish like parts ofthe units .Zontal position by .fastening members y17TH tothe bed -10 otthe-miteribox at one lend thereof. vThe support is provided .with ,a

guidevvay 18 Whichis horizontally disposed and extends transversely of thelength. ofthe bed 10. The guidewayis of T shaped cross section and slidably ,receivesa carriage .19

for movement of the latter in the vguidevvay, transversely With respect to the length of thebed. Fastening members 2O-.-20 providY ed with knurled heads 21 are threaded into the support, and when tightened to engage the carriage, operate to secure the latter ina .selected position of ladjustment onthe .support. 1 A

Adjacent one end thecarriage isprovided with an uprightentension 22 having an opentronc Aeach other, .the reference characters Caz ing 23 therethrough of rectangular cross section and extending transversely with respect to the length of the carriage. Slidable freely in the opening is a bar 24 also of rectangular cross section and forming part of a Work engaging member 7. A fastening member 25 provided with a knurled and slotted head 26, is threaded into the extension 22, and when tightened to engage the bar 24, operates to secure the member `W in a selected position of adjustment. It will thus be clear that the support 16 and carriage 19 broadly provide a mounting or a means by which the member W is rendered adjustable both longitudinally and transversely of the bed, and co-act to rigidly support the member with the latter overlying the bed l0 at one side of the saw l2. f

The extremity of the bar 24 which confronts the saw is provided with a horizontally disposed work engaging portion or head 27 which is rounded as indicated at 28 and projects laterally from the bar towards the back rest 11 for co-action with the latter in holding a length of material on the bed 10 in a fixed position for sawing. The portion 27 is provided with a vertically disposed threaded opening 29 normally closed by a plug 30, which, when removed, permits a postl to be threaded into the opening so as to increase the height ot the portion 27 sutliciently to engage and iirmly hold relatively wide material which is to be supported on the bed 10 with one side edge resting onv the bed.

The operation of the device is as follows: With a length of material placed upon the bed l0 in the position to be sawed at a predetermined loca-tion along its length, the work-engaging members W and W, which overlie the bed l0 at opposite sides of the saw, are adjusted longitudinally and transversely of the bed as required to bring their portions27 and 27a into lirm engagement with the material in proximity to the saw as shown in Figure l. By now tightening the fastening members 20, 20, 25 and 25a the members IV and WV will co-act with. the back rest 11 to firmly hold the material in a liXed position for sawing. t will be clear that as `the members lV and lV can be adjusted close to the saw regardless of the angle at which the latter is disposed, that extremely short lengths of material can be securely held in afixed position on the bed l0. Furthermore it Will be noted that in instances where it is desired to saw only a short section or block from an end of a length of material, as shown in Figure l, that such short section will be firmly held against displacement by one of the members lW or Wg and that in the event a length gaging member such as forms part of the gaging instrument for miter boxes embodied in my co-pending application for Patent Serial No. 252,265

'filed February 6, 1928, is engaging the exappended claims.

tremity of the short section, the latter will be prevented from being rocked to an oblique position by the saw as the latter is withdrawn upon separat-ion of the short section from the main body of the material, thereby obviating damage to the saw as well as to the sawed edges ot the material.

From a consideration of Figure 8 it will be seen that with the saw positioned as shown in full or broken lines so as to saw a miter, that the members W and W can be suitably adjusted to iirmly hold in a fixed position, a short length of material such as molding, and thus enable such short lengths to be conveniently utilized when required.

In the event that it is desired to saw a length of material at a less angle than is possible with the saw adjusted to either extreme angular position as shown in Figure 9, the members W and W are removed from their respective carriages 19 and 19a and transposed or reversed as shown in this figure, so that the member W is supported by the carriage 19a, and the member W bythe carriage 19. As the two members are identical in construction with the exception .of one being yright hand and the other left hand, the portions 27 and 27 a of the members will now project away from the back rest l1 as shown in Figure 9 instead of towards the back rest as shown in the remaining figures.

The saw is now adjusted to its maximum angle and a previously marked length of material is placed under the saw. With the member W adjusted for its portion 27 to coact with the edge of thesaw receiving slot in the back rest, in forming abutments against which the material can rest in the proper position to be sawed at the previously marked angle, the operator by now pressing the material against the thus formed abutments, can manipulate the saw to saw the material at the desired angle, as the material will be lirmly supported in an oblique position with respect to the length of thebed 10.

When relatively wide material such as base boards with a molded side edge, are to be sawed, the material is placed upright .on the bed 10 with its opposite side edge restingy y upon the bed, and the posts .31 are applied to the members W and W so as to increase the height of the portions 27 and 27a suicient to securely hold the material in a fixed position on the bed.

Although I have herein shown and described only one form of work holding device for miter boxes embodying my invention, it is to be understood that various changes and modifications may be made therein without departing from the spirit of the invention and the spirit and scope of the I claim as my invention: l. In combination,a miter box, a pair of supports secured to the bed of the miter box 2. A Work holding device for miter boxes Y comprising a pair of Work engaging members, means for mounting the members on a miter box to extend longitudinally of and to overlie the bed jof the latter at opposite sides of the` savv, for adjustment longitudinally and transversely of the bed, and means for securing the members in selected positions of adjustment, the members having horizontally offset Work engaging portions.

3. A Work holding device for miter lboxes comprising a pair of Work engaging members, means for mounting the members on a miter box to extend longitudinally of and to overlie the bed of the latter at opposite sides of the saw, for adjustment longitudinally and transversely of the bed, and means for securing the members in selected positions of adjustment, the members having horizontally offset Work engaging portions, and posts detachably secured to said portions.

Il. A Work supporting device for miter boxes comprising a pair of supports having guidevvays and adapted to be secured to the bed of a miter box at opposite ends thereof to dispose the guidevvays transversely of the length of the bed, carriages slidably mounted in the guidevvays,'means for securing the carriages against movement, Work engaging members slidably mounted in the carriages for movement transversely with respect tothe length of the guidevvays, and means for securing the members against movement in the carriages, the members having horizontally offset Work engaging portions at their extremities.

5. A Work supporting device for miter boxes comprising a pair of supports having guidevvays and adapted to be secured to the bed of a miter box at oppositeends thereof to dispose the guidevvays transversely Vof the length of the bed, carriages slidably mounted in the guidevvays, means for securing the carriages against movement, work engaging members slidably mounted in the carriages for movement transversely With respect to the length of the guidevvays, and means for securing the members against movement `in the carriages, the members having horizontally offset Work engaging portions at their ex-v tremities, and Work engaging posts detachably secured to said portions ofthe members.

I 6. In a Work holding device of the character y described, a support having av guidevvay, a carriage slidable in the-guideWay, means for securing the carriage against movement, a Work engaging member comprising a bar slidable in the carriage transversely of the guidevvay and having a horizontally offset Work engaging head on one extremity, and

means for securing the member against sliding movement in the carriage.

ERIC SODERGREN.

, llO

Images