Apparatus and methods for forming dovetail joints
US4168730A · kind A · utility
Inventor
Key dates
| Filing date | Jan 3, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Jan 3, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27F1/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed is a tool set for forming dovetail joints including elongated dovetail and pin template plates and dovetail and pin bits. The dovetail plate has a plurality of laterally-extending slots opening through a long edge of the plate, the slots having opposed parallel edges. The dovetail and pin bits are each provided with a bearing about their respective shanks. The elongated pin template plate has a plurality of longitudinally spaced openings each having opposed edges angled to converge toward one another at the same angle as the angle of the cutter of the dovetail bit. To form a dovetail joint using the kit, the dovetail template is disposed over the end edge of a joint member and the dovetail bit is passed through each slot with its bearing engaging the opposed edges of the slot to guide the bit whereby through dovetails are cut in the end of the joint member. The dovetailed member is then disposed over the end edge of the adjoining member and the pin locations are scribed onto its end edge. The pin template is then located over the scribed edge and the angled edges of its openings are aligned with the scribed lines. The pin template bit is inserted into the opening and the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.