Gang saw for cutting blocks of stone
US4498450A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Jul 20, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28D1/066
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved vertical gang saw is provided for sawing blocks of stone or the like. By this new design, the vertical saw frame is slued or swung about the center of the blades during each reciprocating movement. This design combines the following features: PA0 (a) the vertical frame (5) being supported at the center (13); PA0 (b) straight line guides (6 and 7) connected to said frame and positioned respectively at one end (21) and in the center (13) of the saw frame (5); and PA0 (c) the pivotal point of the straight line guide (6) being moveable perpendicular to the stroke of the frame and dependent thereupon. The perpendicular movement of the straight line guides can be accomplished by connecting them with a cam (10) which is driven off of the flywheel (3). Through this combination, all of the saw blades cut the stone block workpiece in both the up and down directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.