US1977878A - Carpenter's tool - Google Patents

Description

Oct. 23,1934. w. v. HENRY CARPENTERS TOOL Filed March 29. 1952 w v Hanry ATTO EY.

patented oct. 23, 1934 CARPENTERS TOOL Walter V. Henry, Norfolk, Va. Application March 29, 1932, Serial No. 601,781

6 Claims.

This invention relates to a device adapted to be used by carpenters, cabinet makers and the like for measuring, gauging and laying out mortises and the like for installation of door locks; hinges,

butts, and the like and comprises a member adapted to be placed alongside a door casing or on a door for laying out mortises for the insertion of locks, hinges, butts and the like which not only provides means for accurately measuring the space to be occupied by the hardware, but also provides means for forming a furrow along the edge of the door casing or door to indicate the depth of out of said mortise. Said furrow forming means are adjustable to suit any required thickness of hinge and the like.

Means are also provided on the end'of the tool frame for forming a furrow along the edge of the door casing or the door for extremely thin hinges and other hardware, or in any places where the spot to be marked is inaccessible with the main portion of the tool.

Some of the objects of the invention having been stated, the structure will appear more fully as hereinafter explained when taken in connection with the accompanying drawing, in which Figure 1 is a plan view of my tool adjusted for laying out mortises for the insertion of locks;

Figure 2 is an edge view of Figure 1 looking from the lower side of Figure 1;

Figure 3 is an opposite edge view of the tool looking at the upper side of Figure 1;

Figure 4 is an enlarged cross sectional view taken along the line 44 in Figure 1;

Figure 5 is an end view of the tool looking at the right-hand end of Figure 1.

Referring more particularly to the drawing, th numeral 10 indicates one portion of the stock of my tool having cavities 11 and 12 transversely thereof and also having a central cavity 13 having a hole 14 communicating with the outside of member 10 and with cavity 13. The upper portion 15 of the stock has somewhat narrower cavities 16 and 1'7 coinciding with cavities 11 and 12. The portion 15 also has a cavity 18 coinciding with cavity 13, and in the bottom of cavity 18 there is a circular cavity 19 having a hole 20 extending from the base of said cavity 19 to the exterior of member 15. Member 15 also has cavities 21 and 22 therein in which are mounted coiled springs 23 and 24. The portions 10 and 15 are secured to each other by any suitable means such as screws 25 and 26.

Slidable gauge 2'7 has legs 28 and 29 slidably mounted in cavities 11 and 12 which legs are nor- ,mally pressed against the bottom of said cavities 11 and 12 by the coiled springs 23 and 24. The gauge 27 also has a central portion 30 having markings 31 in sixteenths of an inch reading; from point 43, while leg 28 has markings 32 ex-' tending along the exterior thereof and reading from the corner 33, whereas the markings 34 on leg 28 read from corner 35. i

Suitable slots 36 are provided for marking a center line of a mortise for looks and the like. Leg 29 has slots 40a therein adapted to cooperate with slots 36 in leg 28 for marking a center line for a lock mortise. Leg 29 has markings 40 extending along the exterior thereof beginning at l the corner 41, whereas, markings 42 occur on the;

inside portion of leg 29 reading from 0011161741370 Slidably mounted in cavities 16 and 1'7 are the legs 45 and 46 of another gauge having portion 47 joining legs 45 and 46. Set screws 47a and 48 are adapted to press legs 45 and 46 together with, iegs 28 and 29 toward member 10 to hold them 76, in adjusted position. Leg 45,has graduations 50 along the inside thereof beginning at corner 51, whereas, leg 46 has-'graduations 52 thereon reading from corner 53, Whereas portion 4'7 has graduations 54 thereon reading from corner 53. Portion 15 has a beveled face 56 having graduations 5'7 thereon. a v

. Member 10 also has a sloping cavity 60 coinciding with cavity 13 in which a blade 61 is adapted to have movement, said blade 61 havinga slot 62 therein penetrated by bolt 64 around which is loosely mounted a compression spring 65 normally forcing blade 61 against the head of screw 64. By means of screw 64 the distance of blade 61 can be adjusted with relation to the gauge 90, 27 and by the aid of graduations 6511 the thickness of a hinge and the like can be determined. Screw 64 may be adjusted by means of inserting a screw driver thru hole 14.

Threadably secured in one end of member 15 is a screw 70 having a sharp edge '71, said'screw 70 is held in adjusted position by means of a set screw '72. Screw '70 may be used for forming a furrow to indicate depth of cut for a very thin hinge or butt in places inaccessible to blade 61 or in case of very thin hinges or butts.

When a marking for a. hinge mortise is to be marked out, the top gauge is slid outwardly until portion 4'7 coincides with portion 30 and a pencil marking is made along the inner edges of portions 28, 29 and 30 of member 27 to define the boundry for the mortise for a hinge, butt and the like.

In order to mark a boundary for a hinge mortise it might be added that only one of the squares is needed; therefore, by making portions 30 and 47 coincide only one of the gauges is visible and the tool will occupy the minimum amount of space when in this position. When these members 30 and 47 are moved outwardly until the distance from the points 35, 43 or 51 and 53 to the cutting edge of blade 61 is slightly less than the width of one of the leaves of the hinge the outside boundaries or the hinge leaf are inscribed by marking along the inside edges of members 28, 29 and 30. It will be seen that gauges 57 and 54 are provided to mark the length of the mortise for the hinge.

To get the depth that this mortise is to be cut,

blade 61 is adjusted by means of screw '64 so that the distance from the cutting edge toth'e. face of portions 28 and 29 is exactly the same as the thickness of the hinge leaf. Then by giving the back portion of blade 61 a light tap the depth'that the mortise is to be cut is designated on the side or the door.

Let us suppose that we wish to mark the outline of a mortise on the edge of a door in order that the sanie'may'be chiseled out for the reception of a lock. To perform this operation with niy working;tool it will be necessary for screw 64 to be loosened'to allow blade 61 to be moved inwardly so that the cutting edge will not project beyond the edge of opening 60. Then the lower face of member 10 (Fig. 4) is placed against the face or the door with the gauges 30 and 47 resting on the edge of the door where the outline of the -mortise is to be marked. When the gauges have been adjusted for marking the outline, their positions will be approximately as shown in Figurefli and then with a pencil or marker, using the inside edges of portions 30, 28 and 29 and the outside edge of-portion 47; a rectangular outline is inscribed on the edgeof thedoon Then a marker'is inserted in one of the slots 36 or 4021 that happens to be on the longitudinal center line of the rectangle and by sliding the tool on the: edge of the door the center line is marked, Markings 31 and 54 are provided so that a rectangle of any desired length may be inscribed by using these readings. I

In the drawing and specification, there has been setforth a preferred embodiment of the invention. and although specific terms are employed,

' they are used in a generic and descriptive sense only and not for purposes or" limitation, the scope of the invention being set forth in the appended a f i -v Iblair'n; a L I In a measuring tool, a stock having a pair of transversely disposed slots therein, a pair of graduated members, slidably mounted in said slots, each of said members having parallel leg portions connected at one end by a portion 'disposed atright angles to the leg portions, and a marking blade mounted in said stock for adjustable motion in a direction normal to the plane of said graduated members and having motion in a plane parallel to said graduated members and having its edge disposed in spaced parallel relation to said graduated members.

2. In a measuring tool formortises and the like, a stock member, a pair of open ended graduated squares slidably mounted in said stock member and a marking blade mounted in said stock for adjustable motion in a direction normal to the plane of said square and projecting from said stock in a plane parallel to the square, the marking blade serving to mark the depth of the mortise While the squares define the sidewalls of the mortise.

'3; In a marking tool having a stock, a pair of open end squares slidably mounted in said stock, said squares being adjustable with relation to the stock and also being adjustable independently of each other and a marking blade slidably mounted in said stock for movement in a plane approximately parallel to said squares and means for adjusting the position of the edge of said blade in adirection normal to the plane of said squares.

4. In a measuring tool, a stock havinga pair of transversely disposed slots therein, apair of grad-' uated members inv slidable relation to each other and slidably mounted in each slot, each of said pair of graduated members occupying parallel planes, and having parallel leg portions connected atone end by a portion disposed at right angles to said parallel leg portions, and a markingblade extending along and adjacent said connecting portions, said blade being mounted in said stock for adjustable motion normal to the plane of said graduated membersand having slidable motion; in a plane parallel to said graduated members.

5. In a measuring tool for mortises and the like, a stock member, a pairv of open ended graduated squares having parallel leg portions slidably mounted in said stock for adjustable motion in a direction normal to the plane of said graduated squares and having slidable motion in, a plane parallel to said graduated squares, said marking blade being so positioned with relation to said squares that the simultaneous marking of the outline and depth of mortises andthelike may be effected. g r t v I 6.- In ameasuring tool, astock having a pair of transversely disposed slots therein," a pair of graduated members in slidable relation to each other and slidably mounted one in each 'slot,

said graduated members occupying parallel planes, each having parallel leg portions con- WALTER v; HENRY.

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