US1241804A - Miter-box. - Google Patents

Description

C. E. WOOD.

MITER BOX. APPLICATION FILED SEPT. I3, I916- Patented Oct. 2, 1917.

4 SHEETS-$HEET I.

lllll L C. E. WOOD.

MITER BOX.

APPLICATION FILED SEPT- 13. 1916- 1,241,804.

Patented Oct. 2, 1917.

4 SHEETS-SHEET 2- C. E. WOOD.

MITER BOX.

APPLICATION FILED SEPT. 1a, 1910.

Patented Oct. 2, 1917.

4 SHEETS-SHEET 3.

wwwtoz C. E. WOOD.

MITER BOX. APPLICATION FILED SEPT. 13. I9I6.

Patented Oct. 2, 1917.

4 SHEETS-SHEET 4.

UNITED STATES PATENT OFFICE.

CHARLES E. WOOD, OF ST. ALBAN S, WEST VIRGINIA.

MITER-BOX.

.To aZZw lwm it may concern:

.Be it known that 1, CHARLES E. Woon a citizen of the United States, residing at St. Albans, in the county of Kanawha and State of West Virginia, have invented certain new and useful Improvements in Miter-Boxes,

- of which the following is a specification.

' This invention relates to an improved miter-box and has as its, primary object to provide a device of this character employ- 1 ing a saw guide adjustable for making miter cuts of various angles. and wherein the box propeiwof the device will also be adjustable for imparting obliquity to the miter cuts.

The invention has as a further object to provide a device of this character wherein the angle of themiter cut may be determinedwith accuracy and also wherein equal accuracy will be had in determining the inclination of. the ,bevel to be imparted to the miter cut.

,The invention has as a still further object to provide a device of this character wherein, iasabove intimated, an obliquely directed miter cut may be made at one operation. L 1

Other and incidental objects will appear as the descriptionproceeds and in the drawings wherein]: have illustrated the preferred embodiment of the invention and wherein "similar reference characters designate corresponding parts throughout the several viewsn-v Figure l is a front elevation of my improved device particularly showing the man- "ner in which the sides of the, miter box proper are cut away to receive the saw,

Fig. .2 is an end elevation particularly showing the adjustable mounting of the box proper, and the operating lever provided "with a catch for holding the said box at adjustment,

Fig. 3 is a horizontal sectional View par-' ticularly showing the construction of the base or stand of the deviceand the adjust able mounting of the saw guide,

Specification of Letters Patent.

Application filed September 13, 1916. Serial No. 119,900.

particularly showing the construction of the saw back to cooperate with the pawls car ried by the posts of the saw guide,

Fig. 7 is a fragmentary sectional view more particularly showing the mounting of the said pawls, i

Fig. 8 is a perspective view showing one of the pawls. detached,

Fig. 9 is a detail perspective view showing the type of; angle members employed to fit in the cut away portions of the sides of the box proper for guiding the saw in any instance where it is desired to make rightangled cross cuts only, and

Fig. 10 is a fragmentary perspective view showing the angle members mounted in active position upon the box.

In carrying out the invention, the device is formed with a base or stand including coacting arcuate bodymembers 10 having suitable supporting legs and joined by spaced parallel connecting bars 11 secured at their extremities of the said plates respectively.

secured to the sides 14 of the miter box proper adjacent the ends of the box. C0- acting with the plates 12, are arcuate looking plates 15 and 16 therefor. These look: ing plates are connected to the outer faces of the body members 10, as by bolts or other suitable fastening devices and are provided with laterally extending flanges 17 overlying the flanges 13 of the plates 12 for slidably connecting the said plates with the base. ing plates for the box proper with thesaid plates shiftable upon the body members 10 of the base for adj ustably rotating the box about its longitudinal axis with respect to The plates 12 thus provide supportthe base. Connected to one end of the box proper is an operating lever 18. This level,

at its upper extremity, is provided with suitable arms, as more particularly shown in Fig.2 of the drawings, connected to the sides 14 of the box with the lever depending in front of the locking plate 16. This:

plate, at its outer extremity, is provided with an arcuate outwardly projecting toothed flange 19 and pivotally mounted upon the lever 18 to cooperate with the said flange, is a pawl 20. This pawl is, as shown in Fig. 3 of the drawings, provided. with a tooth 21 projecting freely through the body of the lever 18 and"normally urged to' engage the teeth of the flange 19 for automatioally locking the box proper at ad-,

justment. x I k Thesuppo'rting' plate 12 adjacent the lever 18, is, as more particularly shown in Fig. 2, provided upon its outer face and ad j acent-eztche'ndbf the3 said plate with *a' scale QQ'eaeh iri-dicating 90of the Circle in which the box! proper is mounted to swing,

with the said scales {each --beg1nning at-"zero at' the adjaeent-side of thebox. *Gon'se- 1 about its center.

quently, either one scale or tlie'*other, -{de endin upon whiehone"is'exposed, ma be consulted when ad? ustab'ly swinging; the box The sides l 14- ofthe -"box are arranged at substantially "right 'a rigles to each ether and A at' a point substantia lly sidesare -no'tched or cut away in the usual manner as shown at-23 for =i'eceiving the saw. As'- will-bebest observed upon-referenee to Figfil of tl le c lrawin'gsfthe box' is provided with a (lepending' loop at' the inner extremities ot sa-id notches to prmdea clearance for thesalw when the box is'swung about its axis. T-heside walls 14 of the box,

vat the end thereof opposite the lever 18,

are preferably *arran'ged .-to i overhang the base :EOnrec'eiVIng -the lumber' or work and the said Wallsflat the adjacent extreniity {of the box" are also 1 preferably equipped with work 'clampsflf24 carried" by *serews -25' 'swiveled in suitablelugs i projecting 'laterally from the outer faces of the box walls with the 1 clamps 24 extending through slots in the said walls to engage thewvork.

Extending between and connecting i the bars 1 1 I at i a point substantially midway the ends er the *base, -is a horizontally arranged arcua te bea-ring plate 265 provided at its inner circumference with an upstanding I annu-lar flange I 27. Rotata bly mountedupon thefisaid plate :is a saw 'guide including an annular +body 28 freely surrounding the flange 527 to rest upon thelplate and formed, -'diametrically opposite points, withrad'ialarms 29 =and"30. Connected to the upper 1 edge of the flange 27, at opposite sides thereoflare loc'kingf pl'ates 31 whi'ch,

=as show-n in detail in Fig.4 of the drawings,

bear over the body 28 of the-guide for 'holding thesaid guide upon the 'b'eari-ng plate 26. =The-arnr30-'whicl1"extends forwardly from" the base is for-med T at its outer extremity'withoa 'handle 32 :to "the :under side of which is? pivotally 'eon neot'ed ai locking pawl 33 provided, at its inner extremity; as more particularly shown 5 in Fim '2, "with a tooth normallyurged to cooperatewith a toothed arcuatezplate 34 Connected at its extremities to" the outer side of the'adj aoent connecting bar'llf of the base to project laterally there- .from beneath the arm 30. The arm 30, ad- ,jacent its outer extremity, is provided with "an'epeningsts abovethebar 34 and project- -ing into this opening, is a pointer 36. The

bar 34, upon its upper side is provided with a scale 37vreading from each side of the ion-- gitudinal center of the bar toward the ends thereofandindicating upon each side of the said center 45 of the circle around which the saw guide as mepnt-ed'ro min The pointer 36 is arranged -to "cooperate with "the-scale 37 and may be observed through 'theop'ening 35 so'th'at hy manual-1 operating the pawl '33, the 'saw aguide' ma be a ceur a tely adjusted abem I its axis, to

eitherone; sidehr thelb'th'er of i a position at right" angles to *the box -'propei-.

The l arms -29 and "30, adjacent th'e' extrem i ties threofl are formed with suitable openings i whieh are meunred upstanding hollow posts" 38' oonne'cted' at their lower extremities with the "said arms {by 'siiitable colthe pawls 41 arerovidedwith v flat *shoulders 43 from which extend inwardly 'be'vele'd" shoulders 44; conver ging toward their inner extremities with theinneredges of the said! pawl sloping upwardly and 'inwardly the' i-nner ends of the shoulders- 44. Conand bearing at their free ends against the sides ofithe post are springs 46 norma'lly tive position.

Slidable longitudinally '=u pon-- t'he- 1'3'osts =38 aresleeves 47 heldagainst upward displacement by oap :screws' I 48 threaded upon the upper-"ends of: the, posts. The sleeves 47" are slotted to freely receive "the saw 49 and slide ne'ctedvto the uppergiextremitiesef the'paviils upon the posts 38 in the usual manner as the saw: is raisedor-=ldwered The saw 49" is provided with :a rigid back embracing the upper margin *of the sa'wbody i a'nd' providing at its-inner' extreniity, lateral sh oulders 51 extending ?"1Il opposite directions frormthe sides of the saw. -Formed in opposi-t'e sides *of the 'saw I back '50, at) suitable longitudinally spaced pointsyare inwardly beveled -vnbtches"5'2. 1

As will nowbeseen, when the saw 49 is elevatedto inactive: position' uponthe posts 38, "the saw "baok- 50 will 'ride over the curved edges 45 of the pawls 41 to spring, theepawlsa-part'and permit the saw back to assume a position above the upper ends of the said pawls. Upon the assage of the saw back between the paw s, the springs 46 will then urge the pawls inwardly to engage the upper ends thereof or the shoulders 43 beneath the shoulders 51 of the saw back for automatically looking the saw in elevated position. To release the saw, the handle thereof is grasped and the saw shifted longitudinally until the notches 5:2 in the saw back 50 are,'as shown in Fig. 2, disposed above the upper ends of the pawls 41. The beveled bottom walls of the said notches will then engage between the beveled shoulders 44 of the said pawls to spring the pawls outwardly when the weight of the saw will then serve to release the pawls and permit the lowering of the saw upon the posts 38 to active position. I consequently provide an arrangement wherein, upon the movement of the saw to inactive position, the said saw will be automatically locked in such position and wherein the said saw can be released only by shifting the saw into a predetermined relation with respect to the posts 38. Consequently, the saw will not likely become accidentally released to drop and cause pos sible injury to the operator.

From the preceding description, it will now be understood that the saw guide may be shifted to adjust the saw with respect to the box proper for making miter cuts at various different angles while the said box may be rotated upon the base through the medium of the lever 18 for varying the obliquity of the said cuts. By consulting either of the scales 22, the oblique inclination of the cut may be accurately determined. Moreover, by employing a scale at each end of the adjacent supporting plate 12, one of the scales may be adjusted with reference to one end of the plate for positioning the adjacent side of the box proper to a predetermined angle when the angle then assumed by the opposite side of the said box will be indicated by the other scale. Accordingly, bevels of two different oblique angles may be out, according to which side of the box is employed to receive the work, at one adjustment of the box.

In some instances, it may be desired to make only cuts at right angles to the box and when it is intended to so use the device, I have provided auxiliary guide members 53 for the saw. These guide members are, as best shown in Fig. 9 of the drawings, each triangular in general contour and are arranged within the notch 23 in the side 14 of the box proper farthest from the operator with the confronting edges of the members defining a slot as shown in Fig. 10 for receiving the saw. The guide members 53 are, upon the outer sides thereof, formed 7 with a plurality of lugs 54: while the sides 14 of the box proper are provided with similar lugs adapted to mate therewith for detachably receiving suitable pins 55 holding the guide members in position. Consequently, for the ordinary use of the device, these guide members may be easily displaced.

It will, therefore, be seen thatI provide a particularly efficient construction for the purpose set forth and an arrangement wherein miters of various angles may be out while, at the same time, said miters may be given an oblique direction which may be easily varied in degree.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A device of the character described including a base, a box carried thereby, and a saw guide mounted upon the base, the said saw guide including a body member, upstanding posts carried thereby, sleeves slidable upon said posts and formed to operatively receive a saw, co-acting pawlscarried by the posts, and yieldable means bearing between the said awls and the posts and normally urging t e pawls to position for engagement with the back of asaw for I automatically locking the saw in inactive position upon the elevation thereof upon the posts.

2. A device of the character described including a base, a box mounted thereon, and a saw guide carried by the base, the said guide including a body member, upstanding posts mounted upon the body member, sleeves slidable upon the said posts, and pairs of coacting pawls carried by the said posts respectively with the pawls of each pair formed adjacent the upper extremities thereof with inwardly converging shoulders, the said sleeves being adapted to operatively receive a saw having a back providing lateral shoulders at opposite sides of the saw and formed at longitudinally spaced points with inwardly beveled notches with the saw movable with the said sleeves with respect to the posts to position the saw back above the upper ends of the pawls to be automatically engaged thereby with the said ends of the pawls coacting with the shoulders of the saw back for supporting the saw in inactive elevated position with respect to the box and with the saw movable with respect to the said sleeves for disposing the said notches to receive the beveled shoulders of the said saw back whereby the saw may be moved downwardly for spreading the pawls to disengage the saw back whereby the saw may be lowered to active position.

3. A device of the character described including a base, a box carried thereby, a saw guide mounted upon the base, said saw guide including a body member, upstanding posts carried thereby, and co-acting locking means carried by the said posts,:and a saw mounted upon the postsandrprovided with, a back,

the, saw being .shiftable upwardly upon the poststoengagerthe back thereof with the said. means for locking the saw? in inactive position with the saw back formed to bear between the said locking means for permltting the release ,of thel saw. 7 v

18, device-of the character described including.- base, a boX carriedthereby, a saw guide mounted upon the base, .the said saw guide includ ng a body member, upstanding posts- ;carried thereby, and co-acting pawls deviceof the character described includinga base, a box carried thereby, a saw guidemounteduponthe base, the said saw guide including a body member, upstanding posts carried thereby, co-acting pawls carried by said posts, and means normally urg- 1,241',soa

ing the said pawls to active position,- and a saw mounted ;upon I the posts and provided with aback, with thesaw shiftable upwardly upon the posts-to; engage the saw backwith thelpawlsfor locking the saw in elevated position, the said saw back being formed at I spaced ,points to bear between the pawls of thesaid; posts for] separating; the pawls against the tensionofsaid means and permitting the release of, the, saw.

6., In a device, of;the character described, 7

docking means toengag'e the back, of the saw with, the said means fon'locking-the 'sawfinelevated p' osi-tion upon the'po sts, and oppositely inclined shoulders formed on thesides of the saw back with thesaw shifitablelongitndinally to engagethesaid shouldersbe tween theupper ends of the said looking means to spread the said means. and permit therelease ofthe saw 5 e In testimony whereof I afiiX my signature.

(mines In. woon. as

I Copies ut this patent niay obtained f or fiireeents each, by addressing the Commissioner of Patents, Washington, I). C.

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