US2581090A - Frame building dismantling tool - Google Patents

Description

Jan. 1, 1952 R FE 2,581,090

FRAME BUILDING DISMANTLING TOOL Filed Feb. 6', 1950 3522 we mz mwc/ Patented Jan. 1, 1?52 BUILDING DISMANTLIN TOOL Henry Phillip Fchler, Wolseley, Saskatchewan, Canada Application February 6, 1950, Serial No. 142,586

4 Claims. (01. 254431) My invention relates to dismantling tools, having particular reference to an all purpose tool for use in wrecking frame buildings.

In the art to which the invention relates it has been proposed to provide wrecking bars and other tools for removal of boards, studding and the like in the dismantlingof frame buildings. In such devices no provision is made for application of a uniform pressure acrossthe full width of the part being removed, such as a board, to avoid splitting the board or breaking it. 1

The present invention'contemplates improvements in frame building wrecking and dismantling tools by provision of means for application of uniform pressure over the whole face of a board or the like that is nailed to another part of the building from which it is to be disengaged. The tool further provides an adjustable attachment by which a limitation may be imposed on the extent to which a board orthe like is pried loose from a stud, and a further attachment by which application of the tool may be limited to one board at a time.

One of the objects of the invention is accordingly to provide an improved frame building dismantling or wrecking tool adapted for application of pressure to the full width of a board or the like in disengaging the board from a part to which it is nailed.

A further object of the invention is to provide in a building dismantling tool means by which a limitation may be imposed on the extent of disengagement of a board or the like from a part of the building to which it is nailed.

'A still further object of the invention is to provide in a dismantling tool adjustable means by which pressure applied by the tool in disengaging a board or the like from a part to which it is nailed may be limited to a single board.

Qther features and advantages of the inventionwill become apparent by reference to the accompanying description taken in conjunction with the drawings wherein like characters of reference indicate like parts throughout the sev eral views and wherein:

Fig. 1 is a side view of a tool embodying my improvements and shown partly sectioned.

Fig. 2 is a detail view of the heel plate with fragment of the pressure applying arm.

Fig. 3 shows a side view of the width adjuster attachment taken by itself.

Fig. 4 shows a detail view of the depth adjusting attachment taken by itself.

Fig. 5 shows a side view of the tool complete as it would appear in use, with fragments of boards and stud included.

Having reference to the drawing my improved frame building dismantling tool provides a tubular handle bar I with pressure applyingarm 2 fixed-thereto at an acute angle to the handle bar and a brace member 3 between the arm 2 and bar I, the brace member attaching in right angular relation to the pressure applying arm.

At the junction of the handle bar I and pressure applying arm 2 is a heel plate 4 fixed thereto and providing chisel points 5-5 projecting laterally of the handle bar and pressure applying arm, the chisel points providing flat faces, asat 6, lying substantially on a line with the under surface of the pressure applying arm.

The tool may be used without the attachments, to be hereinafter described, and as above described may be applied in the dismantling of a building. The tool has a variety of uses and methods of application to meet the various problems presented in disengaging parts of the build: ing nailed to other parts, as will readily suggest itself to one skilled in the art.

In the simple application of the tool the one or other chisel point 5 is engaged behind a stud, such as the stud l illustrated in Figure 5, and with the arm 2 lying substantially flat against a board 8 to be disengaged, or, as in a starting series of boards, a chisel end of the heel may be driven between a board and its stud. By pressure on the handle I in the direction indicated by the arrows the board 8 may be pried from the stud 1. The pressure exerted on the arm 2 is across the face of the board eliminating danger of splitting the board.

In the use of the tool it is generally desirable to pry a board only partly oil until the board has been similarly disengaged from the next stud, particularly where the studding is closely spaced. For this I provide a depth limiting attachment, separately illustrated in Figure 4.

This consists of a short piece of angle plate 9 engaged on the brace member 3 by a U clamp ID, with an insert H interposed between the clamp and member 3. The clamp is secured to the angle plate 9 by nuts l2 threaded on the legs of the clamp, by which the clamp may be loosened to shift the angle plate along the member 3 and attach it at such distance from the arm 2 as is required.

Referring again to. Figure 5, when the board 8 has been pried loose as far as is desirable on that application of the tool, the angle plate 9 coming in contact with the stud stops further downward pressure of the arm 3 fulcrumed on the heel plate 4. At this stage the tool may be applied at the next stud, or the nails removed from the stud from which the board is partially disengaged.

It has further been found desirable to limit application of the arm 2 to one board at a time. For this I provide a width adjuster, separately illustrated in Figure 3. This consists of a bar l3 bent U-shaped at one end, as at M, with clamping bolt i 5 having a nut l6 by whieh the U portion of the car may be secured frictionally in any desired position of adjustment along the arm 2. At the other end of the bar 13 is a bent finger ll engageable loosely in a suitable opening in the tubular handle I, the end portion [8 of the finger lying within the bore of the handle.

In the use of the adjuster bar 13, the bar is set with the U portion I4 fixed to the arm 2 a distance from the free end 6f the arm 2 nor.- responding to the width of the board ii so that pressure of the arm 2 will apply to the board only. lnl' figure 5 a partially removed board [9 is also WP- .t I r r s re is further included a point 20 for the free end 01 the h' -ndle 1;, this point being ja sep arate element and removable, and including a shank '2! of reduced -dian'let'er insertahle in the bore of'the tubuiarhandle. Ifhis permits reversing the tool to use the pointed end for prying he u d- ,.Y

While I have herein disclosed a preferred'embodirn'e'nt of my invention, changes in the construction and arrangement of parts would be conceivable, and in so f r as such changes come within the spirit and scope or the invention as defined in the appended claims they would be considered 'a parthereof. v

Having thus particularly described and ascertained thefnature of my inyention, what I claim and wish to secure by Letters Patent is:

1. A frame building dismantling tool providing a handle with pressure applying arm fixed there- "to at one end thereof at an'acute angle in relation to the handle, and a heel plate at the junction of said arm and handle, fixed to the outer side extending transversely thereof and projecting outwardly on both sides of the handle and pressure applying arm, said heel plate having tapered end portions terminating in sharpened edges.

2. A frame building dismantling tool comprising a handle, a pressure applyingarm fixed to the handle at one end thereof at an acute angle in relation to the handle, a brace member betweenthe pressure applying arm and handle, and a heel plate at the junction of said arm and handle, fined to the outer side extending transversely thereof and projecting outwardly on both sides of p the handle and pressure applying arm, said heel plate having tapered ends terminating insharpened edges.

'3. A device as defined in claim 2 and includinga depth adjusting attachment, comprising a plate withnieans attaching the plate on the brace member projecting laterally thereof, said means being adjustable lengthwise on the brace r-,,, u e

4. A device as'deiined in claim 2 and including a width adjusting attachment comprising a bar with means onthe bar deta'chabl y eng'agingthe handle, said bar providing a U bent portion ehgaging the pressure applying arm andmeans for clamping the U bent portion to the pressure applying arm adjust ble thereon.

HENRY PHILLIP F'EHLER.

REFERENCES CITED The following references are of record in the me of this patent:

UNITED STATES PATENTS Name I Date

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