US1593826A - Butt gauge - Google Patents

Description

July 27 1926. 1,593,826

A. G. HJERT BUTT GAUGE Filed July 22, 1924 /N l/E/VTOR And/"6W (778/7 Patented July 27, 192$.

UNITED STATES ANDREW e. I-IJERT, or SEATTLE, WASHINGTON.

BUTT GAUGE.

Application filed July 22, 1924. Serial No. 727,409.

The invention is a gauge. for marking the location of objects such as hinges plates or locks on door or window frames or the like.

The object of the invention is to provide a simple and etlicient device for marking mortise cuts, in which the distance between the marks may be adjusted.

Another object of the invention is to provide a gauge for marking mortise cuts with disc markers. A i

A further object of the invention is to provide a mortise marking gauge with a guide and marker at one end that may be set so that the location of the hinge mortise may be marked in both the frame and door without resetting the gauge.

And a still further object of the invention is to provide a mortise marking gauge with adjustable markers at each end so that the location of a hinge or plate may be marked in both the frame and door and the thickness also marked without resetting the gauge.

ith these ends in view the invention embodies discs rotatably mounted at the ends of bars which are slidably held in a casing and a guide slidably supported beyond one or the discs; said supporting means and sliding bars being provided with set screws for holding them in ditlj'erent positions.

Other features and advantages of the invention will be seen from the following description taken in connection with the drawings, wherein Figure 1 is a plan view.

Figure 2 is a side View.

Figure. 3 is a cross section through the device.

Figure 4 is a similar view showing an alternate arrangement.

In the drawings I have shown my device as it would be constructed wherein numeral 1 indicates the casing, numeral 2 the disc at one end, numeral 3 a similar disc at the opposite end, and numeral 1 a guide which extends beyond the disc 3.

The casing 1' may be constructed as shown in Figures 1, 2, and 3 in which it is shown as a sheet metal stamping or as shown in Figure 4 with a rectangular shaped casing having partitions through it, or in any other suitable manner. In the preferred design shown in Figures 1, 2, and 3 the casing is made with a plain base 5, sides 6 and 7 having slots 8 and 9 in them, a top 10 having a slot 11 in it, and end plates 12 and 13 having openings in them through which the sliding members supporting the discs and guide may pass. it will be seen that the entire casing may be stamped from a piece of sheet metal with the sides bent upward, the top bent across so that projections 14 on the upper edge of the sides 7 may extend through openings 15 in its outer edge. The upper ends oi? these projections may be peanedas shown at the points 16 in Figure 3 so that the top will be rigidly held to the sides and the edge oi? the top may reinforced by extensions 17 at these points in order to provide a rigid joint. The ends of the top may also be provided with extensions 18 which will lit into small openings in the ends 12 and 13 to hold the ends and top rigid. These projections may also be peaned.

The disc 2 is rotatably mounted on a sliding bar 19 as shown in Figure 2 in which 7 the disc is provided with an oil-set 20 and held by a screw 21 in a recess 22. The screw 21 is threaded into the bar 19 as shown. The bar 19 extends into the casing 1 to the point indicated by the dotted line 28 when the disc is in the position shown and the inner end of the bar is provided with a setscrew 24 which when screwed in binds the bar against the under side of the top 10 of the casing. lt will be seen that the disc may be adjusted to any suitable position from the end of the bar by loosening and tightening the screw 24.

The disc 3 is rotatably held at the outer end of a bar 25 which is slidably held by a set screw 26 in a similar manner to that of the bar 19, and it will also be seen that this disc may be set to any suitable distance from the end of the casing 1 in the same manner. The under side of the bar 25 may be pro- 5 vided with notches 27 indicated in dotted lines in Figure 1 and these notches may be graduated to any suitable scale.

The guide 4 is rigidly attached to the ends of two bars 28 and 29 and these bars 1 are slidably held in the casing 1 and held in different positions by set screws 30 and 31 which pass through the slots 8 and 9 in the sides 6 and 7 in a manner similar to that of the set screw 24 which holds the bar 19. This guide may also be adjusted to any suitable distance from the end of the casing l by loosening and tightening the set screws 30 and 31. The bars 28 and 29 are also provided with notches 32 which may be 'raduated to any suitable scale and which w en in the design shown are somewhat larger than the notches so that as the disc is set to a given number of notches from the end oi: the casing and the guide set to the same number of notches the disc will be adaptable to mark the inner edge of a. strike plate or the like in a door frame with the guide butting the stop and also for marking the edge of the lock in the door with a plate 13 hearing against the edge of the door. It will also be seen that this disc and guide may be set in a similar manner to mark the inner edge oi? a hinge in the :trame and on the edge of the door and also for any other (esired purpose. At the same time the disc 2 at the opposite end of the device may be set to the thickness of the plate or hinge so that the gauge may be reversed to mark this thickness on the frame or door.

The distance between the discs or marking points is also adjustable so that they may be set to allow For the diflerent thicknesses of stain, varnish, paint or enamel.

In the design shown in Figure l the sliding bars for supporting the disc and guide are made round so that holes may be drilled into a block or through partitions in-a block. The set screws may be screwed into the bars through slots in the casing or block in a similar manner and the arrangement and operation will otherwise be exactly the same as described for the device shown in Figures 1, 2, and 3.

It will be understood that changes may be made in the construction without departing from the spirit of the invention. One of which changes may be in the general design of the block or casing; another may be in the use of points, as shown in Figure 3, for markers instead of the discs;

another may be in the use of one set screw instead 01' two to hold the guide l, or in the supporting of this guide on one bar instead of two; and still another may be in the use of more than one bar for support ing the discs or in the means for attachingthe discs to the ends of the bars.

The construction will be readily understood trom the 'loregoing description. To use the device it may be assembled as shown and it will be seen that by setting the markers and guide to predetermined positions it will be possible to gauge or mark all mortises for objects in doors and frames or other similar devices without resetting the gauge. This will make it possible for a carpenter hanging doors all day to set his gauge at the beginning of the day and use it continuously without resetting.

Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent, is

In a butt gauge of the class described, a rectangular shaped casing having slots in the sides and top and transverse plates projecting at one end thereof, a bar having a rotating disc with sharp edges mounted thereon and another similar, but graduated, bar with a similar disc mounted on the end thereof, slidably mounted and projecting from the opposite ends of said casing, other graduated bars slidably mounted in the cas ing on each side of said graduated bar, said other bars having a transverse guide memher at their outer ends, and screws adapted to pass thru said slots into each of said bars and thus adjustably hold all of. said bars on said casing.

ANDREW G. HJERT.

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