GB Patent: GB-191,203,825
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| Improvements in Travelling Carriages of Horizontal Log Band Sawing Machines
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Patentee:
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| Harry W. Durham (exact or similar names) - Newark-on-Trent, Nottinghamshire County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 15, 1912 |
| Granted: |
Apr. 04, 1912 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for A. Ransome & Co., Ltd.
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Description: |
| Abstract:
In an horizontal-band saw-machine for cutting logs into sleepers, such as that described in Specifications 7159/03 and 23,849/03, the logs are carried by a series of short tables m, m<1> mounted on endless chains l, l<1> passing over chain-wheels k, k<1> rotated from an electric motor through mechanism d, toothed gearing d', adjustable friction gearing f, e, chain gearing g, and toothed gearing i, j. Each of the short tables m, m<1> is provided with a fence n, and the logs, while being sawn, are forced into engagement with dogs p on the fence by weighted pressure rollers q<1>, q<2>, q<3>. The fences n bear on a fixed fence R on the machine bed s, rollers t being preferably fitted between them and between the tables and the bed to prevent friction. Guide bars v, w prevent the log and cut off portion from moving sideways and a curved bar u or roller ensures the logs leaving the dogs after being sawn. If a second cut is desired, the feed is stopped while the log is still held by the last pressure-roller q<3>, the saw is raised clear of the log by the mechanism d acting through toothed gearing, and the feed is reversed for returning the log. When the log is returned, the saw can be adjusted to the required position and a fresh cut taken. |
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