US1651634A - Carpenter's plane - Google Patents

Description

Dec. 6, 1927.

E. A. SCHADE CARPENTERS'PLANE Filed April 19, 1924 'IIIIIIII Fag'cenieti Dec. 5, "H921 s m em? EDMUND A. sc eme, 01 vnew BRITAIN, comiineriour, aSsraNoa T0 time sir-Aretha! I WORKS, or New Barret-N, GONN'ECTGICUZR, a eoaeoeario ii eaeolvrmcm rcum. 4

oaaraixi rnit s PLANE.

Application med A ril is, 1924. Se'ria1 as. "707545;

, The main object of my invention ist'o Sprovlde a simple, inexpensive standard typeconstructi'on having a readily detachable cut- .ter. It has beenheretofore proposedpto pro- 7 .videplanes with detachable cutters but they have required departure ifroni' standard plane construction; and it has not been found possible heretofore to secure perfect rigidity 'ofthe, cutter when operating on hard tv'oo'd.

V ment of my invention.

I One 6-5 the objects of my invention is to simplify the construction and provide a "thin cutter having a maximum rigidity.

Another object is to provide a mistress s in -Which the cutter is very. readily placed.

v These advantages I obtain by using a standard type of plane and providing 'ajthin and shallow cutter having notches or passages inits rear edge andsecuring it between the cap and body of an ordinary plane iron by means of a plurality ofscrews.

Figure 1 1s a side v1e and partial section voi? a construction embodying mprove- Figure 2 is a perspective, view of the cutter and the carrier therefor.

Figure 3 is a perspective viev'vfof a standa-rd type plane iron having attaching screyvs for the cutter and showing the cutter 'detached. v

Figure 4: is a longitudinal sectional view of the plane iron and cutter substantially natural size. v I

The body 5 of the plane may be of any suitable form or design and provided With such handle or handles as may; bedesired Th e pl'ane iron 6 and cap 7 are of the usual formand secured together inthe usual manner by a screw 8, so that they can be relatively adjusted. They are adapted to be clamped in place in the usual manner a detachable lever 9, adjusting. screw 10, and manually operable cam 11. The plane iron and cap 7 are adapted to be adjusted in and .out by a yoke-like lever 12 and thumb screw 13. They are also adapted to be tilted from side toside by-the usual lever 14.

To facilitate assembly loosening the screw 10 the pressure of the or removed by simply loosening thescrews 16; These slots also permit slight z't djustrv merit of the clutterjvvith respect' to the pla r'ie ron '6 and the screws 16 and thus enable "the user to locate the cutter-in the be'st position also makes possible to; adjustthepcuttefr shglitly 'i'n'case it does -not correspond saw for the particular use he "may have.

rateil'y in size Withthe particular plan'ej I. have found that it is possible to secure greater r i-g idityiof the ca-treaty ha vmg th'ercutter very el -anew and having the heads of the screws ree g age the rear as shown, 4

In'ately of an inch deep or a little, less,

and approximately 3028 of an inch thick, slotted at the rear so asto bring'the maximu area'ofthe'headsofthe screws to bear upon the rearedjge; To make the cuttei's thicker "or ivid'er than-this is a 'vvasteof mate'r'i a1 and consequently unnecessary expense; To make the cutter material thinher-is to increase the flexibility and cause the;cu tter to chatter when operating on hardvvo )d. I It also appears that the cutter is much fm'jore rigi'd Whenitis held at its rear edge to the iron rather than at the middle; I

- The parts are preferably-so proportioned that the 'di ameter, of the'hea-ds the -screws 16 is relatively large,'--app'roizihiately one half thea ther the cutter 15; s0 that the by the heads of the screws;

- By' provi ding a raised portion 18 end of the cap 7 I allow space for the heads of the screws 16 and at the same time secure proper clamping pressure against the edge of thecut-ter15 so that all'theparts rear half of the cutter isclamped tightly at the co-operate to their maximuinih holding the 'l cutter against vibration.

By" tightening er a member 9 against the cap 7 and cutter 15' 7 may be increased or decreased. 7

The cutter can bereadily adjusted by adjusting the carrier parts 6- and 7 up and down by means of the screvv13 or tilting them by means of the lever 14. of QlVhen the'cutter becomes dull, the carrier removed and the parts 6 and 7 separated-i by loosening the screw 8. The cutter 15 can then be replaced when the screws 16 are loosened.

or loss of time involved in re-shapening an ordinary blade.

I claim: I I 1. The combination in a carpenters plane ofa plane iron having clamp screws in its lower end arranged adjacent its opposite :edges and a detachable cutter of uniform thickness supported on said iron having slots inits upper edge to correspond with the location of said screws, the diameterof the heads of said screws being equal to approxi mately one half of the depth ofsaid cutter whereby the upper half of said cutter is rigidly clamped to said plane iron by said screws, and means clamping the cutter between said screws and its edge.

2. In a carpenters plane, a body, an iron adjustablysupported thereon, a thin shallow' cutter of'substantially uniform .thick .ness having passages therethrough and supported on the lower end of said iron, screws passing through said cutter into said iron and having heads ofrelatively large diameter engaging said cutter to clamp said outter to said iron, a cap piece adjustabl clamped to said iron and adjustable with said ironand having its lower end arched to extend over said screw heads and having its tip engaging said cutter, a detachable lever engaging said cap and means for clamping said lever to said body and against said cap. I

3. The combination in acarpenters plane having a .planeiron, of a detachable cutter, means located in the lower end portionof the plane iron .for rigidlylclamping a substantial width of the cutter onto the plane iron back from the cutting edge, said clamping means being movable with respect tothe surface of the plane iron contiguous the cutter, and means for clamping the cutter to the plane iron adjacent the cutting edge between said cutting edge and said first mentioned clamping means, said second mentioned clamping means being structur ally independent of said first mentioned clamping means,

4-. The combinatioirin a carpenters plane having a plane iron, of a detachable cutter, means located in the lower end portion of the plane iron for rigidly clamping a substantial \vidthof the cutter onto the plane iron' back from the cutting edge and conmeans located in the lowerend portion of the plane iron for rigidly clamping the cutter ontothe plane iron back from the cutting.

edge and comprising threaded securing means spaced transversely of the-plane iron and passing throughthecutter, and means for clamping the cutter to the plane 1ronadacent the cutting edge between said edgeand first mentioned clamping means. g

6. The combination. in a carpenters' plane having a plane iron, of a detachable cutter,

means located in the lower end portion of the plane iron and engaglng the upper surface of the cutter adjacent its rear transverse edge for clamping the cutter to the plane iron and detachable means structurally independent of said first mentioned clamping means, for clamping the cutter to the plane iron adjacent the cutting edge between said edge and first mentioned clamping means.

a 7 The combinat on in a carpenters plane having a plane iron, of a detachable cutter,

adjustable means located at the lower end portion of the planeiron for rigidly clampinga substantial width of the-cutter onto the plane iron in operative positionand back from the cutting edge, and means for clamp ing the cutter to the plane'iron adjacent the cutting edge between sa d cutting edge and the first mentioned clamping means, said- -second mentioned clamping means being structurally independent of the first mentioned clamping means and including a cap piece clamped to said iron and having its lower end arched to extend over the first mentioned clamping means.

EDMUND A. sonann.

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