US207267A - Improvement in saw-mill - Google Patents

Improvement in saw-mill Download PDF

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US207267A
US207267A US207267DA US207267A US 207267 A US207267 A US 207267A US 207267D A US207267D A US 207267DA US 207267 A US207267 A US 207267A
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chain
mill
shoe
log
saw
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
    • B65G17/123—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element arranged to keep the load-carriers horizontally during at least a part of the conveyor run
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • the object of this invention is to furnish saw-mill men with a device for attachment to the chains by which logs or timber may be hauled from the booms into the mill, that shall obviate the necessity of driving dogs into them to such an extent as to injure the lumber, which frequently happens in the ordinary method of operation; and, further, much time is saved, as it is only necessary that the device attached to the chain should be placed in the water upon the slip, and then haul the log over it, when, as the chain moves forward, the log will be caught upon the upwardly-projectin g dogs of the device or appliance, and carried forward, the Wei ght of the log being sufficient to embed the dogs to such a depth as will prevent the log from slipping backward as it is drawn up the slip; and the invention is an improvement on patent to R. E. Gleason, November 27, 187 7, No. 197 ,465 and consists in attaching to the jack-chain shoes or carriers of peculiar construction, which will be herein after fully described, and then specifically claimed.
  • Figure 1 is a side view of a portion of a slip, with the jack-chain and shoe, upon which rests a log.
  • Fig. 2 is a plan view of one of the shoes with part of the chain attached.
  • Fig. 3 is a rear-end view of the shoe, and
  • Fig. 4 is a side view of the shoe and part of the chain.
  • the slip is represented by the letter A, the jack-chain by the letter B.
  • O is the shoe or carrier, and D the log.
  • the chain shown is formed of a series of single links, a, connected by the pairs of links b and the bolts 0, thus forming a chain that is in common use for many purposes.
  • the links a perforated at midlength for the reception of a bolt, 0, by which it is connected to the two side pieces cl of the shoe.
  • the rear end of these side pieces is connected by a cross-bar, e, bent downward in the middle, so as to allow the logs to rest upon the dogs (1 as they move forward.
  • Any other form of chain may be used which furnishes proper links for the attachment of the shoes; but I prefer that described, as it is in general use where a pitch-chain or chain running on sprocket wheels is used, being found to do its work satisfactorily.
  • the shoes or carriers are connected to the chain in such a way that the latter is allowed to work freely while the log is resting on them, and also allows the log to ride easily independent of any irregularities of the surface; and, further, the Weight of the log upon the shoe being carried at a point behind the point of connection to the jack-chain avoids that tendency of the chain to buckle or twist, so troublesome when the log is carried upon a bunk or shoe rigidly attached to the chain.
  • cross-bar which connects the two opposite sides of the shoe, may be dispensed with, if desired, when knotty logs are being operated upon.
  • the log carrier or shoe consisting of the two side pieces, provided with upwardly-pro jecting dogs, and connected at their rear ends by the curved cross-piece, and at their forward ends to the jack-chain by a pivotal connection, substantially as and for the purpose described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)

Description

R. E. GLEAS'ON. Saw-Mill Appliance.
Patented Aug. 20,1878.
N. PETERS, PHOYO-LH'HOGRAFHER, WASHINGTON D. c.
UNITED STATES PATENT OEEIoE.
ROBERT E. GLEASON, OF MUSKEGON, MICHIGAN, ASSIGNOR OF ONE-HALF HIS RIGHT TO ALEXANDER RODGERS, OF SAME PLACE.
IMPROVEMENT IN SAW-MILL APPLIANCES.
Specification forming part of Letters Patent No. 207.267, dated August 20, 1878; application filed July 15, 1878.
To all whom it may concern:
Be it known that I, ROBERT E. GLEASON, of Muskegon, in the county of Muskegon and State of Michigan, have invented certain new and useful Improvements in Saw-Mill Appliances, the especial character of which will be hereinafter fully described.
The object of this invention is to furnish saw-mill men with a device for attachment to the chains by which logs or timber may be hauled from the booms into the mill, that shall obviate the necessity of driving dogs into them to such an extent as to injure the lumber, which frequently happens in the ordinary method of operation; and, further, much time is saved, as it is only necessary that the device attached to the chain should be placed in the water upon the slip, and then haul the log over it, when, as the chain moves forward, the log will be caught upon the upwardly-projectin g dogs of the device or appliance, and carried forward, the Wei ght of the log being sufficient to embed the dogs to such a depth as will prevent the log from slipping backward as it is drawn up the slip; and the invention is an improvement on patent to R. E. Gleason, November 27, 187 7, No. 197 ,465 and consists in attaching to the jack-chain shoes or carriers of peculiar construction, which will be herein after fully described, and then specifically claimed.
In the drawings, Figure 1 is a side view of a portion of a slip, with the jack-chain and shoe, upon which rests a log. Fig. 2 is a plan view of one of the shoes with part of the chain attached. Fig. 3 is a rear-end view of the shoe, and Fig. 4 is a side view of the shoe and part of the chain.
The slip is represented by the letter A, the jack-chain by the letter B. O is the shoe or carrier, and D the log. The chain shown is formed of a series of single links, a, connected by the pairs of links b and the bolts 0, thus forming a chain that is in common use for many purposes. At such points in this chain as may be necessary are placed the links a, perforated at midlength for the reception of a bolt, 0, by which it is connected to the two side pieces cl of the shoe. The rear end of these side pieces is connected by a cross-bar, e, bent downward in the middle, so as to allow the logs to rest upon the dogs (1 as they move forward.
Any other form of chain may be used which furnishes proper links for the attachment of the shoes; but I prefer that described, as it is in general use where a pitch-chain or chain running on sprocket wheels is used, being found to do its work satisfactorily.
It will be seen that the shoes or carriers are connected to the chain in such a way that the latter is allowed to work freely while the log is resting on them, and also allows the log to ride easily independent of any irregularities of the surface; and, further, the Weight of the log upon the shoe being carried at a point behind the point of connection to the jack-chain avoids that tendency of the chain to buckle or twist, so troublesome when the log is carried upon a bunk or shoe rigidly attached to the chain.
The use of the cross-bar which connects the two opposite sides of the shoe, may be dispensed with, if desired, when knotty logs are being operated upon.
Having thus described my invention, I claim as new, and desire to secure by Letters Patent, the following:
1. The log carrier or shoe consisting of the two side pieces, provided with upwardly-pro jecting dogs, and connected at their rear ends by the curved cross-piece, and at their forward ends to the jack-chain by a pivotal connection, substantially as and for the purpose described.
2. The shoe C, in combination with a con trally-perforated link, a, and bolt 0, arranged so as to give freedom of movement to the shoe upon the jack-chain, as set forth. 7
In testimony that I claim the above as my invention I have hereimto affixed my signa ture in the presence of two witnesses.
ROBERT E. GLEASON.
Witnesses H NRY B. W. VAN ZALINGER, THOMAS WHEELER.
US207267D Improvement in saw-mill Expired - Lifetime US207267A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780343A (en) * 1953-02-24 1957-02-05 Nelson A Bunnell Conveyor construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780343A (en) * 1953-02-24 1957-02-05 Nelson A Bunnell Conveyor construction

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