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US Patent: 517,990
Machine for Barking Logs
Patentees:
William W. Trevor - Lockport, Niagara County, NY
Francis N. Trevor - Lockport, Niagara County, NY

USPTO Classifications:
144/208.91

Tool Categories:
woodworking machines : specialty machines : debarking machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. Frost Cushman
Edward W. Damerow
Theodore L. Popp
F. Gustav Wilhelm

Patent Dates:
Applied: May 29, 1893
Granted: Apr. 10, 1894

Patent Pictures:
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"Vintage Machinery" entry for Trevor & Co.
Description:
Wilhelm & Bonner - patent attorneys

This invention relates to that class of machines for removing the bark from logs intended for the manufacture of wood pulp, which consist of a vertical rotating cutter disk arranged in a case and provided on the front side of the disk with supports on which the logs are placed and rotated in contact with the cutters. The object of our invention is to improve the devices whereby the logs are presented to the cutter disk.

We claim as our invention—

1. The combination with the rotating cutter disk, of feed wheels and lifting arms arranged in front of the disk and made vertically movable with reference to each other, whereby either the feed wheels or the lifting arms can be made to support the log, at desire, substantially as set forth.

2. The combination with the rotating cutter disk, of feed wheels and vertically movable lifting arms arranged in front of the disk, and mechanism whereby the lifting arms can be raised above the feed wheels, substantially 95 as set forth.

3. The combination with the rotating cutter disk and its case, of feed wheels journaled in brackets secured to the case, lifting arms supported at their front ends by a rocking support, and mechanism whereby the rear ends of the lifting arms can be raised, substantially as set forth.

4. The combination with the rotating cutter disk and its case, of feed wheels mounted on shafts arranged across the face of the cutter disk, lifting arms composed of open frames through which said shafts pass, and mechanism whereby said frames and shafts can be raised and lowered relatively to each other, no substantially as set forth.

5. The combination with the rotating cutter disk and its case, of feed wheels arranged in front of the cutter disk, lifting arms capable of vertical movement, cams pivoted to the case and connected with said lifting arms, and a treadle whereby said cams are operated, substantially as set forth.

6. The combination with the rotating cutter disk and its case, of brackets secured to the front of said case, feed wheels mounted on shafts which are journaled in said brackets, a rock shaft journaled in said brackets, lifting arms secured with their front portions to said rock shaft, and a lifting mechanism connected with the rear ends of said lifting arms, substantially as set forth.

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