US3590891A

US3590891A - Easily anchored mitre boxes

Info

Publication number: US3590891A
Authority: US
Inventors: John Guglielmo
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-09-16
Filing date: 1969-09-16
Publication date: 1971-07-06
Anticipated expiration: 1988-07-06

Abstract

A channel-form wooden mitre box whose front wall member extends a bit below resting surface, has front-to-back through-holes near each side end passing through the bottom wall member, in which holes are slidable, rotatable shanks carrying a washer behind a wingnut at their threaded front ends which extend forwardly of the box structure, and said shanks are bent at their rearwardly extending ends to provide lateral extensions, which may be straight pieces or hook-forms. The downward extension of the front wall member and said rear lateral extensions of the shanks, serve as the jaws of a clamp, upon tightening the wingnuts. For the straight pieces, a tabletop is provided with two spaced holes to receive them. For the hook-forms, a wooden block is secured atop a table or two nails are driven into the tabletop in spaced relation, for the hooks to engage.

Description

United States Patent [72] Inventor John Guglielmo No. 64 Valley View Drive, Yonkers, N.Y. 10710 [21] Appl No. 858,311 [22] Filed Sept. 16, 1969 [45] Patented July 6, 1971 [54] EASlLY ANCHORED MITRE BOXES 1 1 Claims, 6 Drawing Figs.

[52] US. Cl 143/86 {51] Int. Cl B27b 21/00 [50] Field of Search 143/86- [56] References Cited UNlTED STATES PATENTS 339,455 4/1886 Olmsted 143/86 780.657 1/1905 Holt 143/88 1,175,811 3/1916 Ray 143/86 3.397722 8/1968 Long 143/86 Primary Examiner Donald R Schran Attorney-M. C. Nissenbaum ABSTRACT: A channel-form wooden mitre box whose front wall member extends a bit below resting surface, has front-toback through-holes near each side end passing through the bottom wall member, in which holes are slidable, rotatable shanks carrying a washer behind a wingnut at their threaded front ends which extend forwardly of the box structure, and said shanks are bent at their rearwardly extending ends to provide lateral extensions, which may be straight pieces or hookforms. The downward extension of the front wall member and said rear lateral extensions of the shanks, serve as the jaws of a clamp, upon tightening the wingnuts. For the straight pieces, a tabletop is provided with two spaced holes to receive them. For the hook-forms, a wooden block is secured atop a table or two nails are driven into the tabletop in spaced relation, for the hooks to engage.

EASILY ANCHORED MITRE BOXES The present invention relates to and its principal object is to provide a novel and improved wooden mitre box of channel form which can be easily anchored onto a table and may be provided with a simple work-holding means, all for the convenience of hobbyists, home craftsmen, and in carpentry generally, to eliminate the usual practice of holding a mitre box by hand against a table edge and using a finger of such hand to hold the work while the saw is manipulated by the other hand.

Another object thereof is to provide a novel and improved mitre box construction of the character described, utilizing ordinary channel-form wooden mitre boxes, which I equip with fittings which give them the advantage of this invention.

A further object thereof is to provide a novel and improved easily anchored mitre box having the mentioned attributes, and which is simple in construction, reasonable in cost to manufacture, and efficient in carrying out the purposes for which it is designed.

Other objects and advantages will become apparent as this disclosure proceeds.

For one practice of this invention, an upright channel-form wooden mitre box is provided near each side end with a through hole front to back. In each hole is a slidable shank having an outwardly extending threaded end carrying a washer behind a wingnut, while its outwardly rearwardly extending end is bent downwardly to form said shank into an L- shape, or as in another embodiment shown, said rearwardly extending end is bent to make it a hook-form. For the L- shapes, a tabletop is provided with two holes in proper spaced relation from the tables front edge to receive the downward portions thereof. For the hook-shapes, an elongated wooden block is secured atop the table. A work-holding J-bolt using a wingnut forward of a washer, may be provided through the midupper region of the front wall.

In the accompanying drawing forming part of this specification, similar characters of reference indicate corresponding parts in all the views.

FIG. 1 is a perspective view showing a mitre box prepared to be fitted with anchoring means in accordance with the teachings of this invention.

FIG. 2 is an enlarged end view of a mitre box embodying this invention, shown mounted on a table provided with a wooden block secured thereon on which the box is rested.

FIG. 3 is a fragmentary perspective view of the table and said block.

FIG. 4 is an enlarged end view ofa modified embodiment of this invention, shown mounted on a table provided with two holes specially positioned.

FIG. 5 is a fragmentary perspective view of the table having said holes through its top.

FIG. 6 is an enlarged fragmentary view, shown in section, of a hole structure and the shank therethrough. This view which is in perspective, shows another manner of mounting the mitre box of FIG. 2.

In the drawing, the mitre box designated generally by the numeral 15, is an upright wooden channel-form extending from left to right, having a rear wall 16, a bottom wall 17, and a front wall 18 extending a bit downwardly below the bottom resting surface 17' of the box, to provide a skirt 19, which is to rest against a vertical surface while the box rests on a horizontal surface. The work 20 to be cut by a saw set through a pair of

companion slots

20, 21', or 21, 21, or 22, 22', is rested within the box lengthwise on the upper surface 17" of the bottom wall 17, and against the rear surface 18 of the front wall 18. This mitre box, near each of its ends, has hole structures below the upper surface 17" of the bottom wall 17, opening at the front and rear surfaces of the box. These hole structures are preferably through-holes which are through the bottom wall 17 and extend to the surfaces of the front and rear of the box. Each of these holes, indicated by the numerals 23, carries a slidable shank 24, whose outwardly forwardly extending end is threaded as at 24', and whose outwardly rearwardly extending end is bent downwardly to form with the shank, an L-shape bolt, indicated generally by the numeral 25, or a hook-shape bolt, denoted generally by the numeral 26. To hold the work 20 while it is being cut, a J-shape bolt 27, may be provided as shown through a hole 28, in the midupper region of the front wall 18; such bolt having a wingnut 29 behind a washer 30 on its outwardly forwardly extending threaded end 31, and a rubber tip 32 on its end which is inside the mitre box. The threaded forward ends of each of the

bolts

25 and 26, also have a washer 33 behind a wingnut 24.

To securely mount the mitre box construction of FIG. 2, an

elongated block of wood 35, is nailed on a tabletop 36, along the tables front edge, to support the box so that its skirt I9 is against the front face of said block and the hook portions of the bolts 26 are behind said block. Then as is evident, the wingnuts on the hook-shaped bolts 26 are tightened so the pointed ends 24' bite into said block as is shown in said FIG. 2.

To securely mount the mitre box construction of FIG. 4, two holes 37 are drilled in a tabletop 38, to loosely admit the downward pieces 39 of the L-shaped bolts 25, when the skirt 19 is against the front edge ofthe table. Then as is evident, the wingnuts on said bolts are tightened, which is the condition shown in said FIG. 4.

Another way to mount the mitre box of FIG. 2, is shown in FIG. 6, where the hook bolt 26, which may be called a J-shape bolt, is turned to lie in a horizontal plane to engage a nail 33, or it may be a wooden peg, driven into the tabletop.

In all the constructions and manners of use shown, it is evident that the downward extension 19 of the front wall member and the lateral extension at the rear end of the shank, serve asjaws ofa clamp to mount the mitre box.

This invention is capable of numerous forms and various applications without departing from the essential features herein set forth. It is therefore intended-and desired that the embodiments shown herein shall be deemed merely illustrative of the teachings of this invention.

I claim:

1. In an upright channel-form mitre box of the type comprising a bottom wall member connection a rear wall member and a front wall member positioned opposite the rear wall member and extending below the resting surface of the box, and wherein said front and rear wall members have companion slits for the admission of a saw, the improvement being that the box is provided with at least one straight hole construction in its wall structure below the upper surface of the bottom wall member and above the lower edge of the front wall member, having an opening in the front surface and another opening in the rear surface of the box, a shank slidably positioned through said hole construction and extending outwardly from said openings; the forward outward end of the shank being threaded at least a predetermined distance from its distal end, and the distal end portion of the shank which extends outwardly rearwardly, being bent to form a lateral extension on the shank, and a nut threadedly engaged on said threaded forward end of the shank.

2. A mitre box as defined in claim 1, wherein the shank is also axially rotatable.

3. A mitre box as defined in claim 1, wherein the hole construetion is through the bottom wall, between the upper and lower surfaces of the said wall.

4. A mitre box as defined in claim 1, wherein the shank and its lateral extension form an L-shape.

5. A mitre box as defined in claim 1, wherein the shank and its lateral extension form a hook-shape.

6. A mitre box as defined in claim 5, wherein the shank and its lateral extension form a J-shape.

7. A mitre box as defined in claim 7, wherein the Jshape lies in a vertical plane.

8. A mitre box defined in claim 6, wherein the .I-shape lies in a horizontal plane.

9. A mitre box as defined in claim 6, wherein the distal end of the lateral extension is pointed.

l l. A mitre box as defined in claim 1, including a fixed sup port structure having a front edge downwardly from a horizontal surface; said box resting on said surface and the rear surface of the downward extension of the front edge; said support structure having means adapted to be engaged by said lateral extension of the shank upon the tightening of the nut, whereby the box is anchored to said support structure.

Claims

3. A mitre box as defined in claim 1, wherein the hole construction is through the bottom wall, between the upper and lower surfaces of the said wall.

7. A mitre box as defined in claim 7, wherein the J-shape lies in a vertical plane.

8. A mitre box defined in claim 6, wherein the J-shape lies in a horizontal plane.

10. A mitre box as defined in claim 1, wherein the front wall member is provided with a hole therethrough, opening in its front and rear surfaces, and including a shank element slidably and rotatably positioned through said last-mentioned hole and extending outwardly from the front and rear surfaces of the front wall member; the forwardly extending end of said element being threaded, and the rearwardly extending end thereof extending downwardly into the box in a direction towards the front and bottom wall members.

11. A mitre box as defined in claim 1, including a fixed support structure having a front edge downwardly from a horizontal surface; said box resting on said surface and the rear surface of the downward extension of the front edge; said support structure having means adapted to be engaged by said lateral extension of the shank upon the tightening of the nut, whereby the box is anchored to said support structure.