US3028892A

US3028892A - Carpenter's plane

Info

Publication number: US3028892A
Application number: US19347A
Authority: US
Inventors: George J Filia
Original assignee: Sargent and Co
Current assignee: Sargent Manufacturing Co
Priority date: 1960-04-01
Filing date: 1960-04-01
Publication date: 1962-04-10
Anticipated expiration: 1979-04-10

Description

2 Sheets-Sheet 1 Filed April 1, 1960 INVENTOR ATTORNEY April 10, 1962 G. J. FlLIA 3,028,892

CARPENTER'S PLANE Filed April 1, 1960 2 Sheets-Sheet 2 INVENTOR l gW- ATTORNEYS 3,028,892 Patented Apr. 10, 1962 fitice 3,028,892 CARPENTERS PLANE George J. Filia, Trumbull, Conn., assignor to Sargent & Company, New Haven, Conn., a corporation of Connecticut Filed Apr. 1, 1960, Ser. No. 19,347 4 Claims. (Cl. 145-12) This invention relates to a carpenters plane and more particularly to a plane of simple construction which may be economically made and which at the same time will be durable in use and give longer service than is ordinarily the case.

It is well known that the bit of a carpenters plane needs frequent reconditioning or sharpening in order to render proper service in use. To sharpen the bit it must usually be removed from the body of the plane and ground upon its cutting edge. The cutting edge is normally provided at only one edge of the tool, the other edge projecting upwardly from the body of the plane.

In the present instance it is contemplated to provide a plane with which may be employed a bit which is sharpened upon all four edges and is of the same dimension in length and width so as to be substantially square. Means is provided for securing this bit upon the frog of the plane in a novel and convenient manner so that it may be readily removed and turned in order that any one of the four edges may be employed as a cutting edge. Thus less frequent sharpening of the bit is required as, when one of the edges becomes dull, it is only necessary to turn'the bit or blade through an angle of 90 degrees in order to present another of the edges to the work, and this may be done until all four of the edges have -been used before sharpening is necessary.

As illustrated, this bit is secured to the under surface of a cap or plate mounted upon the frog of the frame, the cap or plate being held in position by a clamp of more or less usual form so, that adjustment of the cap may be made both longitudinally and angularly'so as to adjust the bit with relation to the under surface of the plane body. The cap to which the bit is secured is mounted in a novel manner upon the frog of the plane body so that it may be adjusted in a longitudinal direction to vary the depth of cut and also be adjusted angularly so that the blade or. bit will be evenly exposed over its width.

One object of the invention is to provide a carpenters plane of new and improved form which may be simple in construction, economic-ally manufactured, and require less sharpening than is usual.

A further object of the invention is to provide a carpenters plane wherein the bit is secured to the underside of a cap or plate, the latter being adjustable both angularly and longitudinally to properly adjust the cutting edge of the bit with respect to the lower surface of the plane.

A still further object of the invention is to provide a plane wherein the bit is substantially square in shape and secured to the lower face of a cap or plate, which latter member may be angularly adjusted with respect to the frog of the plane so as to properly adjust the cutting edge of the bit.

To these and other ends the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

FIG. 1 is a side elevational view, partly in section, of a carpenters plane embodying my invention;

FIG. 2 is a sectional View on line 2-2 of FIG. 1;

FIG. 3 is a view of the cap or plate with the bit secured thereto;

FIG. 4 is a side elevational view of the cap and bit shown in FIG. 3;

FIG. 5 is a sectional view on line 5-5 of FIG. 3;

FIG. 6 is a sectional view on line 6-6 of FIG. 3; and

FIG. 7 is a plan view of the bit alone.

To illustrate one embodiment of the invention I have shown in the drawings a plane comprising a body portion 10 having handles 11 and 12 at the front and rear thereof. The body is providedlwith a lower base 13 and spaced side flanges shown at 14 and 15. Between these flanges a bridge or frog 16 is provided upon which the cap and bit are mounted as will be hereinafter described.

The base is provided with an opening 17 through which extends the lower edge of the bit 18, this bit being secured to a cap or plate 19. As shown in FIG. 7, the bit is of substantially square shape and is provided with openings 20 through which may pass a screw 21 threadedly received in the cap 19. The latter is provided with bosses 22 adapted to be received in openings 23 in the bit in order to rigidly secure the latter to the cap. As shown in FIG. 7, the bit is sharpened upon all four edges and may be turned or rotated with respect to the cap so that any one of the four edges may project through the opening 17 to be presented to the work.

The cap or plate 19, as shown in FIGS. 1, 3 and 4, is arched or upwardly bowed adjacent its lower end, as at 24, and the extreme lower end of this portion of the cap is beveled as at 25 so as to present a sharp edge above the blade or hit 18. Adjacent its upper end the metal of the cap is displaced downwardly, as shown at 26, to provide spaced

lateral portions

27 and 28 designed to rest upon the surface 29 at the upper end of the frog. Between the

portions

27 and 28 is a portion 30 lying in the general plane of the cap above the surface 29 of the frog and

tongues

33 and 31 are displaced downwardly from this portion, which tongues are in the same plane as the mem bers 27 and 28 and rest upon the frog portion 29.

A lever 32 is pivoted at 33 to the upper portion of the frog, and an upwardly ofiset end 34 of this lever lies on the surface 29 between the

tongues

30 and 31 so that oscillation of this lever about its pivot 33 will adjust the angle of the cap or plate 19 and the angle of the bit 18 secured to the lower end thereof. It may here be stated that the under surface of the bit 18 is spaced slightly from the surface 35 at the lower end of the frog and makes line contact with the rear face 35 of the opening 17 to be supported thereby.

The cap 19 and bit secured thereto may be adjusted longitudinally to vary the depth of the cut by means of a nut 36 threadedly mounted on a screw 36 secured to the frog, this nut being provided with a collar having abutments 37 and 38 between which is engaged one arm of a lever 39 pivoted at 40 to the frame. The other end 41 of this lever is received in an opening 42 in the cap 19. it will be apparent that rotation of the nut 36 will adjust the cap and bit in a vertical direction and thus vary the depth of cut,

The cap and bit are held in place by means of a clamp 44 provided with the usual slot 45 through which extends a screw 46 threaded into the frog. A spring 47 secured at its lower end to the clamp bears at its upper free end against the cap or plate 19, and the lower end of the clamp 44 rests upon the upwardly bowed portion 24 of the plate to urge it and the bit against the surface 35 at the rear edge of the opening 17 in the base 13. A lever 48 is pivoted at 49 to the clamp member 44, this lever having a portion 50 adapted to engage the upper end of the spring 47. Movement of this lever 48 to the position shown in FIG. 1 tends to raise the upper end of the clamp 44 and, as the clamp pivots about the under surface of the head of the screw 46, this forces the lower end of the clamp against the cap 19. It will be apparent that by moving the lever 48 in a clockwise direction about its pivot 49, the clamp 44 may be released and removed from the screw 46, the slot 45 being of keyhole shape to permit removal of the clamp which will also release the cap and bit for removal from the plane.

it will be apparent that the structure is of simple form and one which may be economically manufactured and that the cap 1% is supported upon spaced portions of the frog and the bit 18 removably secured to the under surface of this cap. The iatter is so formed at its upper end that it may rest against the frog and at the same time space is provided for the end of the adjusting lever 32 to adjust the angular position of the bit by adjustment of the cap itself.

While I have shown and described one embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the claims.

What I claim is:

l. A carpenters plane comprising a body member having a frog provided with an upwardly inclined supporting surface, a cap, a bit secured to the cap adjacent the lower end of the latter at the under surface thereof and the lower end of the bit resting directly on the body member, said cap having a downwardly displaced portion adjacent each side edge at the upper end thereof, said portions resting on the upper portion of the frog, spaced opposing tongues struck from the cap in the general plane of said downwardly displaced portions, and a lever pivoted to the frog upon an axis substantially transverse to said supporting surface and having an end portion engaged between said tongues to adjust the tilt of the cap and the bit secured thereto.

2. A carpenters plane comprising a body member having a frog provided with an upwardly inclined supporting surface, a cap, a bit secured to the cap adjacent the lower end of the latter at the under surface thereof and the lower end of the bit resting directly on the body member, said cap having a downwardly displaced portion adjacent its upper end resting on the upper portion of said supporting surface, a clamp member secured to the frog on the side of said cap opposite the frog to hold the cap in place, spaced supporting tongues struck downwardly from the cap, and a lever pivoted upon the frog adjacent the upper end thereof and having an end portion extending downwardly between the cap and upper surface of the frog and engaged between said tongues to adjust the tilt of the cap and the bit secured thereto.

3. A carpenters plane comprising a body member having a frog provided with an inclined supporting surface, a cap, a bit secured to the under face of the cap adjacent the lower edge thereof and the lower end of the bit resting on the body member, the metal of said cap being displaced downwardly at each side edge thereof adjacent the upper edge of the cap to provide a depressed portion adjacent each edge of the cap, said depressed portions resting upon the upper portion of the frog providing a space between the upper surface of the frog and the intermediate portion of the cap between said depressed portions, a lever pivoted to the frog having its lower end portion extending into said space, tongues projecting inwardly from said depressed portions of the cap having their opposing edges in spaced relation, said lower end portion of the lever lying between and engaging said tongues to effect tilting of the cap and blade when said lever is moved about its pivot, and means to clamp said cap and bit against the frog.

4. A carpenters plane comprising a body member having a frog provided with an inclined supporting surface, a cap, a bit secured to the under face of the cap adjacent the lower edge thereof and the lower end of the bit resting on the body member, the metal of said cap being displaced downwardly at each side edge thereof adjacent the upper edge of the cap to provide a depressed portion adjacent each edge of the cap, said depressed portions resting upon the upper portion of the frog providing a space between the upper surface of the frog and the intermediate portion of the cap between said depressed portions, a lever pivoted to the frog having its lower end portion extending into said space, spaced projections on the lower surface of the cap with which said lever is engaged to effect tilting of the cap and bit when said lever is moved about its pivot, and means for clamping the cap and bit on the frog.

References Cited in the file of this patent UNITED STATES PATENTS 799,234 Jett Sept. 1-2, 1905 1,623,644 Tvedt Apr. 5, 1927 1,651,634 Schade Dec. 6, 1927 1,823,383 Weller et al Sept. 15, 1931 2,575,787 Binger Nov. 20, 1951 FOREIGN PATENTS 3,114 Australia May 18, 1932