US829927A - Dado-cutter. - Google Patents

Dado-cutter. Download PDF

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Publication number
US829927A
US829927A US29963306A US1906299633A US829927A US 829927 A US829927 A US 829927A US 29963306 A US29963306 A US 29963306A US 1906299633 A US1906299633 A US 1906299633A US 829927 A US829927 A US 829927A
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Prior art keywords
dado
cutter
edges
grooves
board
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Expired - Lifetime
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US29963306A
Inventor
Benjamin G Luther
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor

Definitions

  • My invention consists in the improved construction of the dado-cutter, whereby the full practical strength of the board at the dadogrooves may be maintained.
  • Figure 1 represents a side view of my improved dadocutter.
  • Fig. 2 represents a section taken in the line 2 2 of Fig. 1.
  • Fig.3 represents a section of a piece of board provided with opposite dado-grooves produced by means of a dado-cutter constructed as shown in Figs. 1 and 2.
  • Fig. 4 represents the same when the edges of the board partitions are placed in the dado-grooves.
  • A represents a dado-cutter of full size formed in one piece, the cutting-teeth a a of which are backed off, as indicated by the circumferential dotted line as a: of Fig. 1, and provided with V-shaped grooves b b at their opposite edges, as shown in Fig.
  • the grooved board B is weakened by the action of the'proj ecting scoring-cutters arranged at the opposite sides of the said head, where as in my invention a smooth groove may be formed without requiring the use of the projecting scoring-cutters I claim as my invention
  • a dado-cutter having the opposite edges of its cutting-teeth provided with grooves which serve to produce the scoring edges of the cutter.

Description

No. 829,927. PATENTED AUG. 28, 1906. B. G. LUTHER.
' DADO CUTTER.
APPLICATION FILED IEBJB. 1906.
M r-N55555: Q M NY 'f il WATT! UNITED STATES PATEN T OFFICE.
DADO-CUTTER.
Specification of Letters Patent.
Patented Aug. 28, 1906.
Application filed February 5, 1906. Serial No. 299,633.
To all whom it may concern.-
Be it known that I, BENJAMIN G. LUTHER, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Dado-Cutters, of which the following is a specification.
My invention consists in the improved construction of the dado-cutter, whereby the full practical strength of the board at the dadogrooves may be maintained.
In the accompanying drawings, Figure 1 represents a side view of my improved dadocutter. Fig. 2 represents a section taken in the line 2 2 of Fig. 1. Fig.3 represents a section of a piece of board provided with opposite dado-grooves produced by means of a dado-cutter constructed as shown in Figs. 1 and 2. Fig. 4 represents the same when the edges of the board partitions are placed in the dado-grooves.
In the drawings, A represents a dado-cutter of full size formed in one piece, the cutting-teeth a a of which are backed off, as indicated by the circumferential dotted line as a: of Fig. 1, and provided with V-shaped grooves b b at their opposite edges, as shown in Fig. 2, whereby a smooth out will be made at the parallel edges of the dado-groove, and at the same time the maximum degree of strength may be preserved in the grooved board, since the scoring ed es 0 c of the cutter do not need to project beIow the intermediate cutting- When the edges 6 e of the boards D D are inserted into the grooves C C, the ridges f f will be reduced in their elevation, as shown in Fig. 4, so as to produce a proper closed joint between the bottom of the dado-grooves and the inserted edges of the boards D D, the height of the said ridges being in practice very slight.
In the operation of the ordinary dado-head the grooved board B is weakened by the action of the'proj ecting scoring-cutters arranged at the opposite sides of the said head, where as in my invention a smooth groove may be formed without requiring the use of the projecting scoring-cutters I claim as my invention A dado-cutter having the opposite edges of its cutting-teeth provided with grooves which serve to produce the scoring edges of the cutter.
BENJAMIN G. LUTHER.
Witnesses:
SOCRATES SoHoLFIELD, JOHN MITCHELL.
US29963306A 1906-02-05 1906-02-05 Dado-cutter. Expired - Lifetime US829927A (en)

Priority Applications (1)

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US29963306A US829927A (en) 1906-02-05 1906-02-05 Dado-cutter.

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US29963306A US829927A (en) 1906-02-05 1906-02-05 Dado-cutter.

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US829927A true US829927A (en) 1906-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710635A (en) * 1953-02-20 1955-06-14 Improved Machinery Inc Wood chipper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710635A (en) * 1953-02-20 1955-06-14 Improved Machinery Inc Wood chipper

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