US768361A - Miter-box. - Google Patents

Description

Nb. 768,361; PATENTBD AUG. 2s, l1904;

. R. P. FOLK & D. 0. TEATS.

MITER BOX.

APPLIoAnoN FILED AUG. e. 190s. No MODEL. 2 SHEETS-SHEET 1.

No. 768,361., PATENT-ED AUG. 23, 1904.

. R; P, FGLK D, 0. THATS.

MITER BOX.

APPLIATIONFILED AUG. 6. 1903.

N0 MODEL.

' 2 SHEETS-SHEET 2 www l n Y hrm-ys To @ZZ .whom it may concern:

I UNITED STATES y APatented. August 23, 1904.A

PATENT l OFFICE.

RICHARD r. FOL-Ii AND DAvID o. TDATs, lor MONTPELIER, o'IIIo.

mnl'E'R-Boix.

SPECIFIATION forming part of Letters PatentrNO.' 7658,361, dated Aligust 23, 1904.

Application ined August 6, 1903.

' Be it' known that we, RICHARD F. FoLxand DAVID O. TEA'Is, citizens of the United States, residing at Montpelier, in the county of Wil-V liams and State of Ohio, lhave invented a new is a specification.

This invention relates to miter-boxes of the' type in which the saw-guides are arrangedto" yIo be swung in both horizontal and vertical planes4 in order to cut miters at any angles which may ,be desired.

The principal object of the invention is to" provide an improved miter -box of Vthe type specified in which the construction is of simple and durable character and in `which the'ad-v justments necessary to provide for the cutting of any of the ordinaryforms of miters may be made quickly and easily. p

A further object of, the invention is to pro-i vide a miter box of the type specified in which Ythe saw-guides are so supported as to permit the use of miter-boxes in cutting miters in material of any ordinary dimensions! and in'which the adjustments are such that they parts may be securely held in any position in which they are placed. z

With the objects above mentioned and'oth ers in view,which will appear as the invention is more fully described, the same consists in the novel construction, combination, and arrangement of parts of a miter-boxhereinafter fullydescribed and claimed, and illustrated iny a preferred form of embodiment in the accom` panying drawings, it being understood that changes in the minor'details of construction I maybe made without departing from the spirit` of the invention 0r sacrificing the advantages thereof.

In the drawings, Figure lis a view infront elevationof the complete miter 7 box, one of tween its ends.

position below the base at the rear thereof, as shown in Fig. 2, and a pair of hemispherical sockets areformedin the bracket for the re'.l lception of balls 14, to which `the sawfguide plan View of the miter box, yshowing one of serai Nt. 168,423. (No model.)

' the saw-guide frames in normal position and the other adjusted inthe horizontal plane. Fig. 4 is a vertical section throughv the miterboX from front to back. Fig. 5 is a detail view showing the mode of securing thesawand useful Miter-Box, of which the following:`

guide frames tothe supporting structure.

Fig. 6 is adetail view showing the preferred form of slide connection between one of the ',vertical saw -guide frame Inembersand the vertically-disposedarc. .y Fig.-7 isa detail View showing the preferred mode of mounting the slotted saw-guide members upon the saw-guide lframe. y n. n l 1 Referring to the drawings, in which `corresponding partsare designated by 'similarcharacters of reference throughout, y1 designates a base-board, whichmay be of any preferred structure and which is preferably mounted upon short supportinglegs 2. The base- 'boar'd 1 is preferably 'provided intermediate vof itsends with a forwardly-projecting por- @tionV 3 whose margin is formed oncircular parcs whoseradii extend from points slightly yback ofthe rear. margin of the basefboard. .The upper surface of the base-boardpis cut vaway somewhat at 4 4, leaving a transverse ,lrib 5 midway between the ends of the 1base- Iboard and elevated portions 6 fatveither vside of the cut-away r4spaces 4. Beneath the baseboard 1 graduated arcs 7 are secured in a horizontalV plane by screws or. other suitable 1fastening means, engagingblocks `8 and a' ltransverse rib 9 on the vunder side of the base.

At the rear of the base and adjacent to the .ends thereof are secured upright pieces 10,

which form a back against which the material to be mitered may be held during the opera- '.tiovn of cuttingl the miter therein, and graduated arcs 11 arearranged in a vertical plane at the back of the base, with their lower ends firmly secured to the members 10 and the upper ends thereof attached to a standard 12, secured to the back of the base midway be- A bracket 13 is secured in frames are secured .in the .manner presently to be explained.v The'balls 14 are held in the rods 16 arey shifted from angles tothe rods' 20, the

one of the bars 25.

socket, so as to be free to turn therein, by means of a retention-plate 15, having suitable openings therein, which is secured upon the upper surface of the bracket, as shown.

The frames supporting the saw-guides include round rods 16, each having its lower end rigidly secured to one of the balls 14 and having the upper portion thereof secured in a collar 17, rigidly attached to a slide 18, mounted upon the graduated arcs 11, each of the slides 18 being provided with a set-screw 19, by means of which it may be positively secured at any point of the are. Each of the rods 16 has pivotally attached thereto for movement in the same plane with the rod a forwardly-projecting round rod 20, journaled in a collar 21, carried by a slide 22, mounted upon the horizontally-disposed arcs 7 beneath the base-board 1. The slides 22 are provided with set-screws 23 by means of which the slides may be secured in any desired positions upon the arcs along which they are arranged to move. The tops of the saw-guide frames are bars 24, preferably of rectangular crosssection, which are pivotally connected with the rods 16 and with bars 25, also preferably of rectangular cross-section, which form the front sides oi' the saw-guide frames and 'are pivotally connected at their lower ends 3o.

with the horizontally-disposed rods 20. rlhe saw guide frames are so constructed that they are always in the form of parallelograms, and when the rods 16 and the rods 20 are disposed at right angles the frames are rectangular in Jform. Vhen, however, the positions at right rectangular forms of the saw-guide frames will be lost, and the frames will be distorted into the rhomboidal forms shown in Fig. 1. .The saw guide frames may be said to be in normal position when the rods 16 are vertical and the rods 2O project straight forward on either side of the rib 9. As long as the rods 16 or the rods 20 remain in the normal position there will be no distortion of the saw-guide frames, as the movement of the rods 16 in the vertical plane of movement of the rods 2O in the hori- Zontal plane is not alone sufcient to change the angles between the rods 16 and the rods 20; but when the rods 16 and the rods 2O are both swung out of normal position distortion of the frames is inevitable, and this is fully provided for by the pivotal connections between the frame members and the collars in which the rods are arranged to turn. Each of the frames is provided with a saw-guide 26, which may be of any suitable construetion, and in the present instance the sawguide consists of a grooved member pivotally mounted at its ends upon a sliding collar 27, arranged for movement upon one of the rods 16, and aslide 28, arranged for movement on Each saw-guide is also provided substantially midway between its ends with a handle 29, having a projecting lug 30 formed thereon for engagement with the top of the saw-guide frame to hohl the saw-guide at the top of the vframe when it is desired to have it out of the way, as when a piece of lumber is being placed in position upon the base preparatory to cutting a miter therein. The handles 29 are therefore prelerably made of resilient metal, and when the saw-guides are raised to the top ol the frames the beveled upper surfaces of the lugs slip over the sides ofthe bars 25 until the lugs are automatically brought into position for engagement with said bars.

From the foregoing description the use oi the miter-box in cutting niiters oi any character may be readily understood. ll the miter involves adjustment of the saw-guide frame in the horizontal plane only, the rods 16 will be secured in vertical position by means of the set-screws in the slides I8, and one of said frames will be swung to the desired angle by moving its slide 22 along its arc7 to the desired point. The slide will then be clamped in that position by means of the set-screws 23, carried thereby, and the saw will then be guided by means of the sawguide, mounted on the frame, in the cutting of the miter. If the mitei` is one requiring adjustment in the vertical plane only, the adjustment of the saw-guide frame will be thel converse of that above described. The rods 2O will be secured in the normal position, and one of the rods 16 will be swung in the vertical plane until it occupies the desired position and will then be secured by means of the screw 19, mounted in its slide. ln case the miter to be cut requires adjustment of the sawguide frame in both horizontal and vertical planes the rods 16 and the rods 2O of the frame will be swung to their proper respective positions, as indicated by the graduations upon the arcs 11 and 7, respectively, and will be clamped in such positions, as already explained. When the saw-guide irames are swung into positions for cutting miters in both vertical and horizontal planes, the rods 16 and 2O turn slightly in the collars 17 and 21, and the saw-guide 26 undergoes a slight displacement relative to the frame members 16 and 25, as best seen in Fig. 1, so enabling the saw-guide to remain parallel to the top and bottom members of the frame without interfering with its change of form.

Having thus described the construction and operation of our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a miter-box, a supporting` structure, a saw-guide frame in the form oi"l a parallelogram having the members thereof pivotally connected and universally jointed to said su pporting structure, and a saw-guide mounted upon said saw-guide frame.

2. In a miter-box, a supporting structure,

lOl

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a saw-guide framein the form of a parallelogram universally Jointed to l said supporting structure and having its members pivotally connected, means connected withl two of the' members of the saw-guide frame for limiting I their movement to the planes disposed at right angles to each other, and a saw-guide carried by said frame. y

3. In a ruiter-box, a supporting structure, graduated arcs carried by said supporting structure and disposed in*l planes at `right anglesto each other, al saw-guide frame in thel form-oi:l a parallelogram universally jointed at the intersection ofthe planes of said arcs, said frame being composed of pivotally-connected members, slides upon said graduated arcs, connections between said slides and two of said frame members, and a saw-guide mounted on saidl frame.

4. In a imiter-box, a supporting structure, graduated arcs mounted on said supporting structure in planes at right angles to each other, said arcs having a common center, a

saw-guide frame composed of pivotally-connected members arranged in the form of a parallelogram connected with the supporting structure by a ball-and-sooket joint at the common center of said graduated arcs, slides arranged for movement along said arcs, and connections between said slides and two of the members of the saw-guide frame.

- 5. In a miter-box, a Supporting structure, a saw-guide frame universally jointed to said supporting structure and comprising normally horizontal and vertical members, said members being pivotally connected to form a parallelogram, slides arranged on the normally vertical members of said saw-guide frame,

and a saw-guide suitably connected with said slides.

RICHARD F. FOLK. DAVID o. TEATs.

In presence of- C. L. NEwooMER, M. D. KERR.

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