Manually guided cutting machine for sheet material
US4107839A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 1977 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | May 6, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26F1/382
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A manually guided cutting machine for cutting stacked layers of cloth and the like which includes a frame having a downwardly extending column with a foot plate of flat extensive construction for supporting the machine on a cutting table as the machine is manually guided. A reciprocated knife blade at the front edge of the column, driven by an air motor on the frame, cuts into the material supported upon the foot plate. Exhaust air from the motor is conducted to a centrally located confined recess under the foot plate free of any communication with the top of the plate so that the foot plate floats on a cushion of air and with the noise of the exhaust air being muffled by the foot plate and the overlying material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.