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Title: |
1891 Article-Standard Saw Mill Machinery Co., Standard Medium Sawmill |
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Source: |
American Engineer, V22, 26 Sept 1891, pg. 121 |
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Insert Date: |
6/18/2018 7:31:04 PM |
NEW STANDARD MEDIUM SAW MILL.
The illustration represents a new medium mill placed on the market by the Standard Saw Mill Machinery Co., of Erie, Pa. This mill is designed to combine strength and usefulness at a moderate cost. It has a capacity for about 8,000 feet per day; carrying up to a 60-inch saw, the following being details of its dimensions, etc.
The husk is of best pine 7 feet 6 inches long, 4 feet wide, 12½ inches deep, 4 inches thick; with 2 5/8 inch steel arbor with solid collar 5 inches diameter. Lug pins being 3 inches center to center. Gig and feed shaft pulley 24 inches diameter, 5-inch face. Gig and feed paper frictions 14 inches and 5 inches by 4-inch face. Rag shaft 1½ inches diameter. Rag pinion 4½ inches diameter. Turned spreader 13 inches diameter. Upper feed shaft l 3/8 inches. Three changes of feed for 3-inch belt, feeding from 1 to 25 inches, but will be changed to suit purchaser.
The carriage is twenty feet long, running on six pairs of wheels and axles, or wheels and chairs as may be preferred, timbers of best pine 4½ inches by 5½ inches. Rack stick with rack is 24 feet long, 3½x 4½ inches; with 48 feet of V and 48 feet of flat track; together with necessary screws and bolts complete.
Two blocks are furnished unless otherwise ordered, opening 36 inches from the saw, provided with the new standard ratchet. The blocks are made in one piece, with solid knee, one provided with the well-known knight dog, combining both log and last board dogs, the other with the common log dog, 16 feet of 17/8 inch set rod, key-seated entire length, with steel knee pinions. These blocks will fit carriages from the narrowest to 44 inches wide outside.
The ratchet cut represents the new Standard ratchet, which is made up of a ratchet wheel having 45 teeth, operated by six steel pawls of different lengths, that are raised from the under-side by a steel pawl, being operated by a half turn of the setting lever, which, while disengaging the forward pawls, also engages the reversing pawls (also of steel), to enable the sawyer to move back the blocks while at his place at the sawyer's lever; it Is also provided with six check pawls which make any back or lost motion impossible. The check pawls are controlled by a lever passing over carriage, a slight push with the foot engaging or disengaging them.
This mill is also provided with a circle so scaled, and with a stop, so that when boards, plank or lumber of uniform thickness is being sawed they can only set as far as set for. A quarter turn of the setting lever disengages both the forward and reversing pawls, so that a log thrown on blocks will carry the knees back, making a ratchet which is as accurate as is used on larger mills, and one which can be set over the log by the sawyer, or behind the log by the setter, with equal convenience and accuracy. This ratchet will fit any pony, small or medium mill, whose blocks are operated by a set shaft.
The Standard Saw Mill Machinery Co. make mills from 5,000 to 30,000 feet capacity, right and left hand, with and without top saws, with belt or variable feet, any length of carriages, swing cut-off saws, gang and side edgers, log and lumber tracks, engines and boilers, saws and belting: and they will be pleases to reply to an inquires from those who wish further information. |
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1891 Standard Saw Mill Machinery Co., Standard Medium Sawmill
1891 Standard Saw Mill Machinery Co., Standard Medium Sawmill Ratchet
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