US789578A - Bevel-square. - Google Patents

Description

No. 789,578. PATENTED MAY 9, 1905. M. G. SWAN. BBVBL SQUARE.

APPLIOATION FILED MAY 14, 1904.

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Kaw@ Jil/mf@ No. 789,578. PATENTED MAY 9, 1905.

' M. G. SWAN.

BBVEL SQUARE. APFLIUATION FILED Mn 14. 1904.

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inria @rane Patented lll/[ay 9, 1905,.

MORION GREELEY SWAN, OF UPLAND, CALlFORNIA.

BEVIELm-SQUIRE..

SPECIjICACLION` forming part of Letters Patent No. 789,578, dated May 9, 1905.

Application filed May 14, 1904. Serial No. 208,002.

To (tl/f whom, if; 'nw/y concer/t:

Be it known that I, MoirroN (inn nLnY SWAN, a citizen of the United States, residing at Upland, in the county of San Bernardino and State of California, have invented new and useful Improvements in Bevel-Squares, of which the following is a specification.

This invention relates to bevel-squares, the object of the invention being' to provide a carpenters implement of the character referred to which will automatically give the side bevel for all jack, hip, and valley rafters, sheathing' on hips and valley, cornices, stairskirtings, and hopper-join ts, the implement being' also useful in laying' off rafters for any pitch of roof, being' adapted for use as a trysquare, a unter-square, and an ordinary bevelsquare.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combination, and arrangement of parts, as herein fully described, illustrated, and claimed.

In the accompanying' drawings, Figure 1 is a plan Aview of a bevel-square embodying the present invention, showing the L-shaped plate set at right angles to the stock and held by a brace or connecting-blade. Fig. 2 is an edge view of the same. Fig. 3 is a plan View showing the Il -shaped plate set at right angles to the stock and the connecting-blade or b 'ace folded into the slot in the stock. Fig. 4 is an end elevation of the square as arranged in Fig. Fig'. 5 is an edge view of the stock, illustratingl particularly the slot therein.

Like reference-numerals designate corresponding parts in all figures of the drawings.

The bevel-sfpiare contemplated in this invention comprises, essentially, a stock l, which under the preferred embodiment of the invention is composed of wood of the requisite thickness to provide for the formation therein of a slot 2, which extends longitudinally of the stock the greater portion of the length thereof, which slot may be described as being' disposed edgewise of the stock or in a plane parallel with the opposite upper and lower faces of the stock, as best illustrated in Fig. 5.

Lying within the slot 2 is a combined brace and connecting-blade 3, which is pivotally mounted at 4 within the slot, the pivot l occurring intermediate the ends of the part 3 and closer to one end than the other, as clearly indicated in Fig. l, so that portions of the brace or connecting-blade may extend on opposite sides of the stock l when said brace is swung' outward at an angle, as shown in Fig. l. At or near the outer extremity of the longer arm of the brace 3 the latter is provided with a thumb-screw 5, which is received in and adapted to work lengthwise of a curved slot (5 in the elbow or short curved arm 7 of the L-shaped plate 8. lheplate is provided at a point about midway of its longer arm with a hole 9 to receive the shank of a thumbscrew l0, which is inserted through the end portion of the stock l, said plate passing' through the slot 2, above described. The slot 6 is enlarged at one end to form a hole l1, which is also adapted to receive the thumbscrew lO when the plate 8 is adjusted to the position illustrated in Fig. 3, wherein the device as a whole is especially adapted for use as a try-square, mitcr-square, or ordinary bevelsquare.

The stock l is preferably graduated in inches along' one or both edges, as shown at l2, and the outer edge of the plate 8 is also graduated or provided with a scale, as shown at 13. '.lhe shorter curved arm 7 of plate 8 is also graduated, as shown at la, to designate suitable positions for the thumb-screw 5, so that without calculation the plate 8 may be set at any desired angle or pitch with respect to the stock l when the thumb-screw l() is inserted through the openingI 9 of the plate 8. rlfhe plate 8 docs not depend for its retention on the thumb-screw l0, but is maintained at the proper angle by the brace or connecting-blade 3, which is used in laying' olf angles upon rafters and the like. The relation of the slot 6 and the brace or connecting-blade 3 to the thumb-screw 5 is such that when the screw 5 is in the outermost end of the slot 6 the plate 8 stands exactly at right angles to the stock 1. 'By projecting the brace or connectingblade 3 through the stock l the correct bevel for hopper-joints and other similar cuts is provided. for, the device being thus useful for IOO laying off angles of cornices, stairs, and the like.

rlhe implement makes it easy to obtain the side bevel in cutting jack and hip rafters, and by setting the plate to the plumb cut of rafters the connecting-blade will always give the side bevel for any pitch of rooic within the compass of the square. The timber to be marked will always lie parallel with the stock of the implement. The plumb cut is ordinarily obtained by means of the usual framingsquare; but for any delinite pitchsuch as one-quarter, one-third, and one-half, &c. the scale or graduations 14 along the edge of the slot 6 will enable the parts to be quickly and accurately adjusted so as to indicate the desired angle or cut. When the brace or connecting-blade is folded into the slot 2 in the stock, the plate 8 may be used as an ordinary bevel-square.

Changes in the form, proportion, and minor details o1 construction-may be resorted to without departing from the principle or sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed as new is*- l. The combination with a slotted stock, of a plate pivotally mounted in the slot of the stock, and a brace or connecting-blade also pivotally mounted in said slot of the stock and having a slidingly-adjustable connection with f the said plate.

2. rlhe combination with a slotted stock, of

i an L-shaped plate pivotally mounted therein justable connection with the slot in the laterally-extending portion of the plate, substantially as described.

4. The combination with a slotted stock, of an L-shaped plate pivotally mounted therein and provided with a curved slot, and a blade pivotally mounted in the slot of the stock and provided with a thumb-screw adjustable in the slot of the plate, substantially as described.

5. The combination with a slotted stock, of an L-shaped plate pivotally mounted therein and provided with a curved slot, and a coninenting-blade pivotally connected intermediate its ends with the stock and provided with a thumb-screw adjustable in the slot ot' the plate, substantially as described.

6. The combination with a slotted stock, of an L-shaped plate one arm of which is pivotally connected intermediate its ends to the stock, the other arm being provided with a longitudinal slot, and a connecting-blade pivotally connected intermediate its ends to the stock and provided at one end with an engaging' device which is adjustable lengthwise of the slot in the plate, substantially as described.

7. The combination with a slotted stock, of an L-shaped plate one arm of which is provided with a plurality of openings to receive thevpivot for connecting the same with the stock to provide for the relative adjustment of said parts, the said plate being provided with a slotted arm or extension, and a blade pivotally connected tothe stock and provided with an engaging device which is adjustable lengthwise of the slot in the plate, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

MORTON GREELEY SVAN.

lVitnesses:

T. H. HERRETT, N. U. MiLLnr..

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