GB275855A - Improvements in mechanism for boring or cutting rectangular holes or openings - Google Patents
Improvements in mechanism for boring or cutting rectangular holes or openingsInfo
- Publication number
- GB275855A GB275855A GB3302826A GB3302826A GB275855A GB 275855 A GB275855 A GB 275855A GB 3302826 A GB3302826 A GB 3302826A GB 3302826 A GB3302826 A GB 3302826A GB 275855 A GB275855 A GB 275855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- square
- cam
- dove
- drill
- machines
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
- B23Q27/006—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass by rolling without slippage two bodies of particular shape relative to each other
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
275,855. Smith, R. Dec. 31, 1926. Drilling-machines; drills and cutters.-In machines for cutting square or rectangular apertures wherein the drill or cutter is guided by a shaped cam rotating in a fixed opening, the opening is formed by sockets arranged round the sides of a square and rotatable about axes inclined to the axis of rotation of the cam. The cam 5, Fig. 9, is guided by a square aperture 4 and the drill 9, having three cutting edges, as shown in the Figure, forms a square hole 13. The arcs 5<e>, 5<g> of the cam are described about a centre 10, and the arcs 5<h>, 5f about centres 10<c>, 10<a> respectively. The sides of the guide 4 are formed by rollers mounted by means of ball bearings on inclined spindles, two rollers being arranged one above the other on each side of the square. The cam 5 is connected with the driving spindle 6, Fig. 1, by means of a flexible coupling comprising a disc 7 engaging the spindle and cam by means of keys b, c. The drill may be formed with a dove-tailed end w<1>, Fig. 4. Milling-machines.-For producing dove-tailed grooves having square ends in wood or metal, the dove-tailed cutter is first fed axially into the work to cut a square opening and the work is then fed laterally for the required distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3302826A GB275855A (en) | 1926-12-31 | 1926-12-31 | Improvements in mechanism for boring or cutting rectangular holes or openings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3302826A GB275855A (en) | 1926-12-31 | 1926-12-31 | Improvements in mechanism for boring or cutting rectangular holes or openings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB275855A true GB275855A (en) | 1927-08-18 |
Family
ID=10347557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3302826A Expired GB275855A (en) | 1926-12-31 | 1926-12-31 | Improvements in mechanism for boring or cutting rectangular holes or openings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB275855A (en) |
-
1926
- 1926-12-31 GB GB3302826A patent/GB275855A/en not_active Expired
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