US195180A - Improvement in cutter-heads - Google Patents
Improvement in cutter-heads Download PDFInfo
- Publication number
- US195180A US195180A US195180DA US195180A US 195180 A US195180 A US 195180A US 195180D A US195180D A US 195180DA US 195180 A US195180 A US 195180A
- Authority
- US
- United States
- Prior art keywords
- cutter
- tongue
- heads
- improvement
- knives
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000465 moulding Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- UPMXNNIRAGDFEH-UHFFFAOYSA-N Bromoxynil Chemical compound OC1=C(Br)C=C(C#N)C=C1Br UPMXNNIRAGDFEH-UHFFFAOYSA-N 0.000 description 2
- 206010043951 Tongue disease Diseases 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
- B27G13/10—Securing the cutters, e.g. by clamping collars
Definitions
- the nature of my intention relates to an improvement in the bits or knives used in cutter-heads for molding the tongue on one edge of flooring or other matched stuff; and its object is, principally, to plane the sides of the tongue with one set of knives as fast as the other set forms it by routing the material down at each side, whereby the machine can be run at a higher speed, will require less power to run it, and the knives much less labor to keep them in order.
- the invention consists,first,in a cntter-head for tongue-molding, having one set of knives for routing the material down at each edge of the tongue, and another set for planing the sides of the tongue; and, secondly, in recessing the middle part of the inner side of each outer bit, for the purpose more fully hereinai ter set forth.
- Figure l is a perspective View of a matoherhead fitted with a set of my improved tongue knives.
- Fig. 2 is a plan of the said knives in the cutter-head, a portion of which is broken out.
- Fig. 3 is a perspective view of one of the side bits.
- Fig.4 is a cross-section of the same at mm, Fig. 3.
- My improvement consists in taking the chisel-bits O of one setof cutters and beveling off their ends to a point, and then beveling this end to form a cutting-edge, b, next to the center-bit, which is made a trifle narrower than that of the other knife, B, whereby the cutters 0 plane the sides of the tongue, while the chisels of the cutter B rout down the edges of the lumber to a shoulder. 'This leaves the sides of the tongue perfectly smooth, and saves the side wear on the chisels of the knives B
- the inner side of each side or outer bit. is recessed, as at c, for the greater part of its length, leaving a bearing against the middle cutter only at the'ends.
- the cutter-head A for tongue-molding having the three-bit knife B with square-side chisel-bits, and the three-bit knife 0 constructed with side bits beveled to a point and having the cutting-edge b, the several parts being constructed, arranged, and combined substan- 'tially as described and shown.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Knives (AREA)
Description
J. B. STOCKHAM',
CUTTER-HEADS.
HNO 195 13g Pa.tente d'Sept.11,1 877;
JEROME B. STOGKHAM, OF JAoKsoN, MICHIGAN.
IMPROVEMENT IN CUTTER-HEADS.
Specification forming part of Letters Patent No. $951.80, dated September 11, 1877; application filed July 12, 1875.
To all whom it may concern.-
Be it known that I, JEROME B. STOGKHAM, of Jackson, in the county of Jackson and State of Michigan, have invented an Improvement in Gutter-Heads, of which the following is a specification:
The nature of my intention relates to an improvement in the bits or knives used in cutter-heads for molding the tongue on one edge of flooring or other matched stuff; and its object is, principally, to plane the sides of the tongue with one set of knives as fast as the other set forms it by routing the material down at each side, whereby the machine can be run at a higher speed, will require less power to run it, and the knives much less labor to keep them in order.
The invention consists,first,in a cntter-head for tongue-molding, having one set of knives for routing the material down at each edge of the tongue, and another set for planing the sides of the tongue; and, secondly, in recessing the middle part of the inner side of each outer bit, for the purpose more fully hereinai ter set forth.
Figure l is a perspective View of a matoherhead fitted with a set of my improved tongue knives. Fig. 2 is a plan of the said knives in the cutter-head, a portion of which is broken out. Fig. 3 is a perspective view of one of the side bits. Fig.4 is a cross-section of the same at mm, Fig. 3.
In the drawing, Arepresents a cutter-head, fitted with one set of tongue-knives, B, made up of three separate bits, and secured by a set-screw, a, in the slot of the cutter-heads.
It has heretofore been customary to use two sets of these knives to form the tongue on matched stuff, which is done by the side chisels routing down-the lumber at the edges, leaving a tongue'iu the middle, whose edge was rounded by the center concave bit. This process left the sides of the tongue rough, on account of the fibers being torn away by the chisels, which are sharpened only at the ends. This causes them to draw hard, requiring much power to run them, and wears away the inner side of each where it projects beyond the middle bit, requiring it to be frequently trued up by grinding the entire length of the inner side.
My improvement consists in taking the chisel-bits O of one setof cutters and beveling off their ends to a point, and then beveling this end to form a cutting-edge, b, next to the center-bit, which is made a trifle narrower than that of the other knife, B, whereby the cutters 0 plane the sides of the tongue, while the chisels of the cutter B rout down the edges of the lumber to a shoulder. 'This leaves the sides of the tongue perfectly smooth, and saves the side wear on the chisels of the knives B The inner side of each side or outer bit. is recessed, as at c, for the greater part of its length, leaving a bearing against the middle cutter only at the'ends. This allows the body of the cutter'to spring inwardly a little under the pressure of the set-screw, which fastens it in the slot, and makes it less liable to work loose and fly out of the cutter-head while at work. This recess also decreases the labor of dressing up true the sides of these and the ordinary cutters, when necessary, as only the raised ends require to be ground.
What I claim as my invention is- 1. The combination, with the cutter-head A, of a three-bit matcher'knife, the slots 0 formed in the inside of the side bits, and the screw 0, set through the side of the cutter-head against the knife opposite the said recesses, constructed and arranged substantially as described and shown.
2. The cutter-head A for tongue-molding, having the three-bit knife B with square-side chisel-bits, and the three-bit knife 0 constructed with side bits beveled to a point and having the cutting-edge b, the several parts being constructed, arranged, and combined substan- 'tially as described and shown.
JEROME B. STOGKHAM. Witnesses:
H. F. EBERTS, H. S. SPRAGUE.
Publications (1)
Publication Number | Publication Date |
---|---|
US195180A true US195180A (en) | 1877-09-11 |
Family
ID=2264586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US195180D Expired - Lifetime US195180A (en) | Improvement in cutter-heads |
Country Status (1)
Country | Link |
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US (1) | US195180A (en) |
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- US US195180D patent/US195180A/en not_active Expired - Lifetime
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