US769307A

US769307A - Miter-box.

Info

Publication number: US769307A
Authority: US
Inventors: Rufus Herrick Dorn
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-06-29
Filing date: 1900-06-29
Publication date: 1904-09-06
Anticipated expiration: 1921-09-06

Description

No. 769,307. I v PATENTED SEPT. e, 1904. R.H.DORN;

MIT'ER BOX.

APPLIOATION FILED JUNE 29, 1900.

NO MODEL. 2 SHEETS-SHEET 1. I

. UNITED STATES Patented September 6, 1904.

RUFUS HERRICK DORN, OF LOS ANGELES, CALIFORNIA.

MIVTER-BOX.

SPECIFICATION formingpart of Letters Patent N 0. 769,307, dated September 6, 1904.

Application filed June 29, 1900-} citizen of the United States, and a resident of the city of Los Angeles, in the county of Los Angeles, and in the State of California, have invented certain new and useful Improvements in Miter-Boxes, of which the following is a full, clear, and exact description or specification, reference being had to the annexed sheet of drawings, and to the letters marked thereon.

My present invention consists of certain improvements in the miter box for which Letters Patent have been allowed to me on the 2d day of April, 1900, for which application for Letters Patent was filed on the 30th day of January, 1900,'having the Serial No. 8,380 and issued to the applicant as Letters Patent No. 651,459, dated June 12, 1900.

My present improvements relate to the 0on struction'and operation of the retaining catch or catches whereby the angularly-movttble backs of the miter-box (against which the moldings or other timber being cut in the miterbox rests while being cut) are adjusted and fas tened at any required angles with the vertical plane of the saw, so as to get rid of a tendency to turn over or upset the miter-box by the user thereof placing his hands to disengage the latch or catch, or either, back from the recess in the edge of the table, which I have found to occur with the retaining catch or catches shown in the drawings and described in the specification of my aforesaid-allowed application for Letters Patent.

My present improvements also 'include a different construction of the circular attachments of the movable backs of the miter-box,

by means of which circular attachments the angular movements of the backs is obtained.

My present improvements include a deepening of the slot in the upper part of the sawguide for the purposes hereinafter described.

My present improvements also include the providing of pockets whereinto the stops for maintaining the molding or other piece of timber in position when being cut to an angular joint may be dropped to the level of the upper surface of the bottom or table of the miter-box in elevation.

when it is required to have the upper surface Serial No. 22,095. (No model.)

of the bottom or table of the miter-box free from any impediments which such stops in their operating positions produce.

On the annexed sheet of drawings, Figure 1' is a front elevation of my improved miterboX without the saw being shown therein and corresponding (with my present improvements added thereto) to Fig. 2 of the drawings of my aforesaid Letters Patent. Fig. 2 is an elevation of one of the angularly-movable backs of my miter-box in the position the reverse of that shown at Fig. 1 and showing the improved catch and operating-spring Fig. 3 is an end elevation of the angularly-movable back of my improved miter-box, corresponding to Fig. 2. Fig. 4 is a plan of the back of my improved miter-box, corresponding to Figs. 2 and 3. Fig. 5 is an inverted plan of the under side of my improved miter-box, corresponding to Fig. 4 of the drawings forming part of my aforesaid application for Letters Patent, but showing my present improvements therein. Fig. 6 is a i plan of my improved miter-box without showing the saw therein, the saw being in all respects identical with the saw shown in Fig. 1

of the drawings of my aforesaid Letters Patent and generally otherwise so well understood that it need not here be further referred to. Fig. 7 is a vertical sectional view of the whole miter-box, central and in front of the backs thereof, being taken on the line 0 c, Fig. 6. Fig. 8 is an enlarged detailed perspective view of a portion broken out of the table and showing the slot for the stop and a portion of the slot at the pocket broken out, so that the bottom of the pocket appears in section and shows the stop resting in the pocket. H

In Fig. 1 the right-hand angularly-movable backof my improvedmitenboX is marked A,

and the left-hand angularly-movable back of my improved miter-box is marked B. The I retaining-catch levers are marked C and D,

respectively, the larger part of which is seen only in dotted lines in Fig. 1, being situated at and pivotally fastened to the rear of the backs A and B. For the purpose of better showing the arrangement and construction of I my improved catches for retaining the angularly-niovable backs A and B in their required positions I have included in the drawings the detached view of the right-hand back (marked A) and showing the rear thereof at Fig. 2. As will be seen from Fig. 2, the retaining-catch consists of a lever C, whose upper end may project, as is there shown, slightly above the upper edge of the top of the back A, so as to be easily pushed by the hand of the user in to the position shown in dotted lines in Fig. 1 with respect to the retaining-catch lever D. The retaining-catch lever C is pivoted upon the pivoting screw or pin C, fastened into the back A. The spring E, fastened to the bottom flange of the back A and bearing against the stop F, always presses against the upper part of the retaining-catch 0, thereby maintaining the claw C" of the retaining-catch engaged with any one of the recesses G in the bottom of the edge of the table or bottom plate H of the miter-box, and when it is required to move the back A from any one angular position to another angular position the lever C is pressed inward into the position shown with respect to the corresponding lever D in dotted lines in Fig. 1, whereby the catch C is disengaged from any one of the recesses G, thereby leaving the back A or the back B, as the case may be, free to be moved around angularly upon the axis of the miter-box in the plane of the saw, and when the back A or the back B has been brought to the requisite angle the pressure of the workmans hand upon the lever C is released, when the spring E forces it backward and causes the catch 0 to engage with any one of the recesses G or to grip tightly against the non-recessed parts of the circular bottom.

VV'th reference to Fig. 5 of the drawings, the right-hand back A is fastened by screws (4 a to the ring I, and the back B is fastened to the ring J by the screws Z) I). The rings I and J are each respectively carried in circular recesses separated from each other in the bottom of the miter-box, these recesses being formed by means of the two projecting circular beads or rings K K and L L, respectively, as shown at Fig. 5, while for the purpose of providing a more effective bearing for the smaller ring J, to which the movable back B is fastened by the screws I) b, the central projecting boss M is provided, the hole in the ring J J fitting thereto, while both rings I I and J J are retained in their places in the bottom of the table H H of the miterbox by the plate N. (Indicated in dotted lines in Fig. 5.) The stops R are of the same construction as are the corresponding stops in the aforesaid Letters Patent and for the purpose of allowing the said stops to be moved into the position whereat they will not project above the upper surface of the bottom plate or table H and at the same time preventing them from falling from the miter-box when at the front ends of the segmental grooves O 0,

in which they are movable. These ends of these grooves-that is to say, the ends thereof toward the front of the I11it6l-l3OX itl6 each provided with a pocket (shown dotted and marked P P in Fig. 5 and in elevation at Fig. l) fastened at those ends of the segmental grooves 0, so that the stops R R when moved to the front ends of the grooves O O may drop into the pockets and remain there ready to be lifted up out of either of the pockets P P when again required to be fixed adjustably in the grooves O O. In order that a piece of timber wider than thehalf-diameter of the table H of the miter-box may be placed in or upon said miter-box for being cut to a right angle or to any other angle, it is necessary that the front sawguide (marked S, shown in Fig. 1) should be capable of being maintained at any required height above the top of the table H, so that a space may be left between its bottom edge and the upper surface of the table H to admit such wider piece of timber into and to bear against the back of the miter-box while being cut to the angle required. For this purpose that part of the slot X in the front saw-guide S is formed much deeper than is the corresponding slot' shown in the drawings of my aforesaid allowed application for Letters Patent, so that the back of the saw may descend through this deepened part of the slot until the aforesaid wider piece of timber is cut through. When the cutting edge of the saw has reached its lowest position, the lower edge of the sawguide S remains resting upon such wider piece of timber until such wider piece of timber,

, now cut,has been removed,when the saw-guide S drops to its lowest position, as it is shown in Fig. 1. For the purpose of insuring that the backs A and B shall always be in their true operating position with each ring I and J, respectively, the backs A and B have a transverse projection Y at their bottom,which enters a corresponding slot in each ring, as shown.

Having now described the nature of my said invention and the best system, mode, or'manner I am at present acquainted with for carrying the same into practical effect, I desire to observe in conclusion that what I consider to be novel and original, and therefore claim as the invention to be secured to me by Letters Patent, is as follows:

1. In a miter-box, the arrangement for carrying the two movable backs consisting of two rings each carried in a separate recess in the under side of the bottom of the miter-box, to each of which rings one of the angularly-movable backs of the miter-box is attached by a rectangular projection at the bottom of each back entering a slot in the corresponding ring and screws passing through both for holding each back to its corresponding ring, substantially as hereinbefore described.

2. The combination of the angularly-movable backs of a miter-box, the pivotally-carried catches thereof, the upright levers of said catches, the springs operating said levers, the

separate rings, one for each back with a slot therein for receiving the projection at the bottom of each back and to each of which one of the backs is connected by screws passing through the base of each back and into each ring, substantially as hereinbefore described.

3. The combination with the circular table of a miter-box having slots and stops of the pockets at the under side of the circular table Whereinto the stops are received when said I stops are not in use, substantially as hereinbefore described.

4. In a miter-box the combination of the circular table, having slots and stops adjustable therein and enlargements of the slots and stops RUFUS HERRICK DORN.

Witnesses:

ST. JOHN DAY, J. J. MCMILLAN.