US1255190A - Frieze-board marker. - Google Patents

Description

W. MCBRIDE.

FRIEZE BOARD MARKER.

APPLICATION FILED MAI/14.1917.

\ State of Washington,

wYLiE Messine, or srokann, WASHINGTON.

reinas-BOARD MARKER..

Specification. of Letters Patent.

Patented lieb.. 5, 191% Application led May 14, 1917. Serial No. 168,437.

To all whom it may concern:

Be it known that I, lVYLIn MCBRIDE, a citizen of the United States, residing at Spokane, in the county of Spokane and have invented certain new and useful Improvements in Frieze- Board Markers, of which the following is a specification.

My invention relates to improvements in frieze board markers, and the principal 'object thereof is the provision of an instrument for accurately determining the proper cuts for the frieze board and scoring the board so that the same may be sawed to closely t the sides and bottom edges ofthe rafters which it is intended to embrace.

A vfurther objectis the provision of a novel instrument of the foregoing character which is very compact, simple in construction, convenient to adjust, and handy to manipulate.

The several advantages of my improvements will he clearly pointed out in the following specification wherein will be set i'orth the details of construction and func- Y tions of the elements comprising the complete device, recourse being had to the accompanying drawings, in which- Figure 1 discloses a rafter and a frieze board both indicated fragmentallyTl the latter occupying the position in which it is supported temporarily for the marking or scoring operation, and a longitudinal view of the marker showing its application to use for securing the vertical scores for the frieze board, the dash lines indicating the position of one of the elements after manipulation for the scoring operation.

Fig. 2 illustrates the method of using the device to obtain the horizontal score connecting the vertical scores so that the horizontal score will conform with the contour of the under face or edge of the rafter, the marker being shown in solid and dash lines to indicate the movement of the instrument required in the operation. Y

F ig. 3 is a sectional edgewise view taken through the slidable cutter for marking the vertical scores and the tongue to which the cutter is riveted.

F ig. 4 is an enlarged view showing the details of the adjustable scoring device for marking the depth and contour for the lower edge of the rafter.

Referring more particularly to the drawings in. which like characters of reference with jaws 11 spaced apart the indicate like parts in the several views, the numeral 1 designates a straight-edge formed with a longitudinal slot 2, having crosspieces 3, and provided at one end with a fixed positioning or squaring member Li. Slidably mounted in the slot 2 is a reduced, integral tongue 5 of a bar G, the tongue hav ing secured at its end a two-edged scorer 7 which is constructed as shown in Fig. 3, and consists of plates 8 secured to either side of the tongue 5 by rivets 9 and adapted to embrace the straight-edge sides of the slot, said plates with the cross-pieces 3 serving to guide the tongue in the slot 2. lEach plate 8 has formed at one end an integral scoring edge 8 which projects outwardly at right angles to the face of the plate and in register with the adjacent edge of the straight edge.

The manner of using the scorer Z is indicated in F ig. 1 wherein the instrument is shown set up against a rafter A and a frieze board B ready for the scorer to be drawn down across the board a sutlicient distance to indicate. one of the vertical cuts. The frieze board is, of course, first supported temporarily in place abutting the lower edges of the rafters which it is intended to embrace. To score the board for the cut for the opposite side of the rafter the same operation is repeated by placing the instrument in a like position on the remaining side of the rafter, the instrument Vbeing turned over so as to present its opposite face and scorer edge to the frieze board.

The cuter end of the bar 6 is provided with an integral wrenclilike head 10 formed approximate thickness of the common commercial rafter so as to engage the edges of the same, the face 12 between the jaws being convex in shape as illustrated. Slidably mounted in a longitudinal slot 18 in the bar 6 is a cutting tool la for marking the depth and contour of the horizontal rafter cut. The tool consists of a nut 15 and a thumb screw 1G, the latter provided with a centrally eX- tending sharp pointed nin 17. The opposed faces of the nut and screw engage the bai' to adjustably secure the tool in the slet. To indicate the proper score for the lower edge of the rafter the tool 14 is rst positioned at a point in the slot to correspond with the depth of cut required, a linear scale 18 being provided along the slot on the bar for that purpose, and then the head 10 positioned as shown in Fig. 2. A. pivotal swinging movement of the instrumentJ with the Convex face 12 held firmly against ,the rafter edge and the cutter pin 17 in engagement with the face of the frieze boa-rd, will serve to deeply scoreA the board, the scope of the swinging movement being limited so as to score the board only between ythe vertical scores heretofore Areferred to. By reason of the convex shape of the face 12 which conformswith an arc of a true circle taken from a center X the marking for 'the depth cut connecting the two vertical cuts will conform with the contour of the rafter edge which it is intended to fit. This is highly important where the edges of the rafters vpresent an irregular, curved, or beveled face as, in such case,V the marker will follow the contour of such face. Also, if any of the rafters which a given board is intended to embrace is of less depth than the others and in consequence spacedl slightly away from the frieze board, a cut of correspondingly less depth for that particular'rafter will necessarily be madeand an accurate lit thereby assured.

the aaroximate drain of the 'ricze boards a very deep cut may be made in the scoring operation, thereby allowing the cut-out portion to be knocked out after the vertical cuts have been sawed.

Having described my invention, I claim 1. An instrument of the character described7 consisting of a bar, a head carried at one end otl the bar havingspaced jaws and an arcuate face between the jaws, and a longitudinally adjustable scoringtool mounted on saidv bar.

2. In a marking device the combination with a bar having a head with a convex arcuate edge forming a movable contact point, and guiding elements atthe ends of said edge, or" a marking tool carried by the bar and co-acting with said edge as the contact point is moved.

In testimony whereof I aflix my signature.

VJYLIE MCBRDE.

Copies of this patent may be obtained for `five cents each, by addressing the Commissioner ci Patents.

' Washington, D. C.

Images