US752406A - Miter-box - Google Patents

Description

No. 752,406. PATENTE!) PEB. 16, 1904.

L. PZIHGHilLSl` MITBR BOX.

ARPLIGATION FILED DBO. 17.11902. y

No MODEL. a 2 SHEETS-SHEET 1,

JKT' l g Tm TL/ 5 39 MITE-R BOX. y

y APPLIQATION FILBDDBG. 17. 1902. No MODEL. 2 s imn'rsvsmn 2.

a/ l 2q 4.4' IHM 5 FI" 2* mii 2 ff f "1' K ll 'ulllllll lgk UNITED STATES atented February 16, 1904.

PATENT OEEicE.

LEWIS P. NICHOLS, or rirrsnene, rENNsYLvANiA.

MITER-Box.

SPEGIFICATIONforming part of Letters Patent No. 752,406, dated February 16, 1904, i Application iiled December 17, 1902.y Serial No. 135,542. (No model.)

To a/ZZ whom, it may concern:

table member of the bed or table.

a detached detail perspective view of one of Fig. 4 is a rear elevation of the box.

Beit known that I, Lewis P. NIcnoLs, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have Vinvented certain new and useful Improvements in Miter-Boxes, of which the following is aspecication, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in miter-boxes, and has for its primary object to provide a miter-box by means of which shorter-length pieces, as well as pieces of greater width, may be more readily cut than is possible with the ordinary miter-boX.

The invention has for another of its main objects to provide a miter-boxby means of which any desired bevel or miter may be accurately cut, and, further, to provide means whereby a double bevel may be cut as readily as a single bevel or cut.

A still further object of the invention is to construct a miter-box in which the saw-holding means is adjustable to-swing to Vany desired angle between forty-five degrees and ninety degrees; further, to provide means for clamping in the desired position, and, still further, to provide means for holding special shapes in the box in a secure manner to enable the desired cut vor miter to be made.

With the above and other objects in view the invention consists in the novel construction, combination, and arrangements of parts, as will be hereinafter more Specifically described, and then particularly pointed out in the claim, and in describing the invention in 'detail reference will be had to the accompanying drawings,forming a part of this specification, and wherein like numerals of reference will be employed to indicate like parts throughout the-different views, in which- Figure 1 is afront elevation of my improved ruiter-box. Fig. 2 is a detail top planview of the same. Fig. 3'is a transverse vertical sectional view taken on the line 3 3 of Fig. 2. Fig. 5 is a cross-sectional view of a part of the rota- Fig. 6 is `vthe detachable clamping-bars carried on the` 'tabie or bed. Fig. 7 is a detached detail side elevation of a part of one of the extensible saw-holding members. Fig. 8 is a like view of the other saw-holding member. Fig. 9 is an underneath plan view of the rotatable member of the bed or table, and Fig. 10 is a detail perspective view of a part of one of the adjustable saw-holding guides for varying the depth of the cut. e

To put my invention into practice, I provide a table or bed-plate, Which may be said to comprise three members-two stationary end members 2 and an intermediate or central rotatable member 1, substantially circular in form, with projections 8 and 11 at the front and rear side of its periphery for a purpose as will more presently appear. The device is suitably supported by legs or brackets 3 3, which may be cast integral with the end members of the table or bed-plate or suitably secured thereto in any desired manner. The two end members are integral with each other, rbeing connected to a circular track 4, spaced from the rotatable member 1, the spokes sof which connect with a central hub 6, the latter formingV a central bearing for the rotatable member 1 of the table or bed-platerto rotate upon. To this end the member 1 is provided centrally'of its underneath face with a boss 7, tapered to fit in a seat provided therefor in the upper face'of, the hub 6. The table or bed-plate is provided at the front with a projectionS', and the rotatable member is connected, through this projection, by screws 9 to a depending bracket-bearing 10, grooved on its inner face to engage the track 4. A projection 11 'at the rear of the rotatable circular member 1 is connected by screws 9 to a like grooved depending bracket-bearing 10', engaging the track 4 at the rear of the box. The projection 11 has outwardly-protruding arms 12, in the ends of which are mounted setscrews 14, the Shanks of which operate when the set-screws are loosened in segmental slots 15, formed in a circle 16, which is attached to the rear saw-guide.' The circle 16 is graduated on the front face,whereby any desired cut may be made exact, as will more fully appear hereinafter. It will be evident that although I IOO tube '24 upward therewith, and the set-screw vsaws employed for this purpose.

ed to be swung over to any desired angle,v

whereby the desired bevel may be cut. One of these guides is adjustable transversely of the device, whereby a board or piece of greater width than the distance between the upright* walls of the box and the front guide when the latter is in normal position may be cut. In the present illustration I have shown the front guide as the adjustable one transversely of the device, and these guides, which also form the holders lfor the saw, are adjustable lengthwise, whereby to vary the depth of the cut desired to be made. Describing the construction of the present illustration,- the front guide comprises a slotted tubular post 17 terminating at its lower end in a head or boss 18, which carries a rod or shaft 19, provided at a point near its outer end with a radial lug 20. The rear guide likewise consists of a slotted tubular lpost 17 terminating at its lower end in a head or boss 18, to which is connected a tube 21, provided from its free end to apoint adjacent the head or boss 18 with a slot 22 and a series of transverse notches 23, communicating with said slot. The tube 21 extends through the rear bearing-bracket 10, underneath the rotatable member, through the tapered boss 7 into registry with an opening provided in the front bracket-bearing 10, and the rod or shaft 19 telescopes into said tube 21 and is locked in the desired position by the engagement of the lug 2O into one of the notches 23. Fitted to telescope in each of the vertical slotted tubular posts 17 are slotted tubes 24, terminating in heads 24n at their upper ends, which heads are preferably provided with enlarged slots 25 to receive the enlarged back (not shown) which is ordinarily employed upon The slots in the tubes 24 do not extend entirely through the lower ends of the tubes, and the elevating or lowering of these tubes within the posts 17 consequently regulates the depth of the saw cut which may be made. The annular shoulder at the lower ends of the heads 24*L rests upon the upper ends of the posts 17 when the tubes 24 are in their'lowermost position, and at this time the saw is free to cut entirely through the piece being operated upon. The tubes 24 are elevated and held in an adjusted position by suitable means,` a practical form being shown in the present illustration and consisting of a slotted supporting-bar 26,hung

on a set-screw 27, attached to the posts 17, near the upper ends thereof, the bar 26 hav'- ing a bent-in upper end 28 to engage the tube z 24 underneath the lower end of the head 24, When this bar 26 is elevated, it will carry the 27 being tightened to hold the bar in the adjusted position the tube 24 is held elevated in theadjusted position, since it rests upon the upper end of the bar.

The rotating member 1 of the table or bedplate is provided around one side of the periphery with graduation-marks 29 for determining the different bevels, as will be apparent. Likewise the circle 16 is provided with graduation-marks 16 for determining the desired bevel. The rotatable member of the table or bed-plate is locked in any desired position by means of a spring-bolt 30, the inner end of which engages in notches 31, provided therefor in the circular track 4, this bolt being held normally in engagement with one of the notches by a spring 32, arranged thereon between a supporting-bracket 33 and a pin 34, extendingtransversely through the locking-bolt. The bracket 33 is cast integral with the front bearing-bracket 10, and through this bracket 33 and through the front bearing-bracket VlOis extended a screw-rod 35 to impinge upon the periphery of the circular track, so that the table may be locked at any point between the notches 31, the screw-rod being provided on its outer end with a suitably knurled head 36. y

In order that extremely short pieces may be beveled in the box, I provide adjustable walls 37, the inner ends of which are cut at an angle of forty-five degrees to give clearance, whereby the vsawV may be swung over to any desired angle'. These walls 37 are provided with slots 38 to receive set-screws 39, engaging into the rear edge of the stationary members of the table or bed-plate. In Fig. 4 these walls are shown in full lines in their extended position, and in the left-hand end of said view theyare shown in dotted lines moved inwardly, whereby to accommodate a shorter piece.

In using ruiter-boxes it has often been found diflicult and with many forms of boxes impossible to hold special-shaped pieces-such, for instance, as what is known in the trade as spring-molding. To enable me to securely hold special shapes while cutting the same, I provide the two stationary members of the table or bed-plate with transverse slots 39', and I then employ a slidable bar 40, which lies upon top of the table or bed-plate and is held in the adjusted position by set-screws 41, the shanks of which extend through the slots and into the bars and the shoulders of which screws engage upon theunderneath face of the table to hold the bars secure.

In order that the saw will not engage with IOO IIO

inthis groove insert a strip 42, composed of Y Y wood or other material which will not dull the i saw-teeth when the latter engage with the Same. As this strip of material becomes damaged from constant use it Ymay readily be re- ISO moved and a new strip inserted, which may readily be accomplished after the front guide.

is withdrawn, so as to give free access to the front end of the groove in the table or bedplate.

In operation it will be readily observed that the piece is to be placed upon the table or bedplate, and assuming itis desired to cut but a single bevel thereon the rotatable member of the table or bed-plate will be swung around to the desired degree-and locked in this position, when the cut may be made. Assuming it is desired to out a double bevel at the same time, the table is swung around to the desired degree and the saw-guides then swung over to the proper angle, so that when the cutis made a double bevel will be produced.

It is to be noted that with this construction I am enabled to cut dovetail grooves or the like as readily as a single bevel. It is also to be noted that, the saw-guides being adjust-A able, I may place a board or piece of extreme Width in the box and readily cut the desired bevel thereon, whether the saine be a single or double bevel, and also by the adjustable walls of the box I am enabled tol bring the walls close enough together to hold an eX- tremely short piece of material.

While I have herein shown and described a preferable form of my invention as it has been practiced by me, yet I do not wish to limit myself to the specific construction shown, as

a seat, a rotatable member spaced from the track and formed with a front projection, a rear projection having protruding arms and a central boss fitting in the seat, depending front and rear grooved brackets secured to the rotatable member, the front saw-guide having a slotted tubular post and a horizontal rod formed with a radial lug, the rear saw-guide having a slotted tubular post and a tube receiving the rod, and formed with a slot and transverse notches receiving the radial lug on the rod, the slotted tubes having heads and fitting in the posts, the slotted adjustable bars on which the tubes are `supported by their heads, and the slotted circle carried by the rear tubular post and adjustably secured by clamp-screws -to the protruding arms.

Intestimony whereof I ax my signature in the presence of two witnesses.

LEW'IS P. NICHOLS.

Witnesses:

H. C. EVERT, A. M. WILSON.

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