US1206264A - Logging system. - Google Patents

Description

Patented Nov. 28, 1916;

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P. SIMPSON.

LOGGING SYSTEM.

APPLICATION FILED JULY 20, 1915.

Patented Nov. 28, 1916.

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INVENTOR WITNESSES WMX mmmm CRIS! ATTORNEY AilEhlT PHY' SIMPSON, 0F AIRLIE, OREGON.

LOGGING SYSTEM.

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Application filed July 20, 1915.

To all whom it may concern:

Be it known that I, PHY SIMPSON, a citizen of the United States, residing at Air-lie, county of Polk, State of Oregon, have invented certain new and useful Improvements in Logging Systems, of which the following is a specification.

My invention relates to a system of logging timber wherein is used a lead spool or sheave block, with a stationary hauling engine or other power equipment.

In the present state of the art of hauling logs out of the timber by means of ropes wound upon the drum of a stationary hauling engine, wherever a corner is to be turned by the log it has been customary to locate a common rope block lashed or otherwise fastened, to a convenient tree or stump, and to station thereat an attendant, whose duty it is, when a log arrives at such a block, to signal the engineer at said hauling engine to cease hauling in the rope. When thus the log has been brought to rest adjacent such a rope block, the attendant releases the shackle attaching the log to the hauling rope, and again attaches said shackle to the hauling rope upon the opposite side of said rope block, and then signals the engineer to proceed with the hauling in.

The object of my invention is to provide such a corner or station as will automatically change the direction of motion of the log and release the rope from the rope block without the presence of an attendant and without shutting down or even slowing down the hauling engine, thus effecting a very considerable saving in the cost of hauling in logs in lumber camps and like places.

I accomplish the above object by means of the construction and arrangements of parts hereinafter described, and illustrated in the accompanying drawings, which therefore form a part of this application for Letters Patent, and in which:

Figure 1 is a diagrammatic illustration of my invention in use. Fig. 2 is a perspective view of the rope sheave block as used with my invention. Fig. 3 is a longitudinal sectional elevation of the sheave block. Fig. 4 is a section on line A-A of Fig. 8. Fig. 5 is a section on line BB of Fig. 4.

Like characters of reference indicate like parts throughout the several views of the drawings.

Referring to Fig. 1, as a general il1ustra- Specification of Letters Patent.

Patented Nov. $8, 191d.

Serial No. 40,901.

tion of my invention, 1 is the drum of a stationary hauling engine of a type well known and generally used in the art, upon which drum the hauling rope 2 is wound. Said rope is attached, at a distance from the hauling engine, to the log 3 to be hauled in. The method of attachment is immaterial to my invention, but is usually accomplished by means of a shackle hook and line well known in the art.

Wherever a corner is to be turned by the log 3 I provide an open side rope block l, the detailed construction of which will be described later. Said rope block 4. is adapted to be secured to any convenient stump 7, by means of a pin 5, driven therein, said pin passing through a clevis 19 attached to the block a.

Any form of lashing or other method of securing the block f to the stump 7, may be used if convenient.

Adjacent said block and stump, and upon the side of same opposite that of the hauling engine is erected a guide or bunker. Said guide may be constructed of a heavy timber 8 securely backed up by a mound of earth. 9, or any method found convenient in the woods for constructing such a guide may be employed. The guide is placed across the path of log 3, as it approaches the block 4, at such an angle to said path as to cause the log to be deflected from its path and to slide along said guide under the influence of the pull from rope 2. When log 3 has arrived at the position shown at 3 rope 2 has passedover stump 7 and takes the position 2 Under the pull of the rope in position 2 the log swings around the end SFof guide 9 and continues on toward the hauling engine.

The body of block t is of inverted lJ shape in transverse section, as shown in Fig. 5, having a top side 10 and depending sides 11 flanking same. A hub 12 is provided depending from side 10, wherein is fixed a pin 13. Upon the upper end of said pin 13 is rotatably mounted a sheave 14, the lower flange of which is partially encompassed by a rib 15 formed integral with side 10, which rib prevents the rope from becoming caught beneath the lower flange 0f the sheave.

In order to form a groove of proper size for the hauling rope as well as to form a proper contour of sheave face to allow the passage over same of the shackle, the sheave is formed of relatively inverted cones with a substantially semicircular groove at the junction of said cones, as shown in Figs. 1, 2, and 8.

The side 10 is inclined upward, and at the end thereof opposite pin 13 is formed a hub 16 adapted to receive a pin 17, said pin being substantially in the horizontal plane passing through the central groove 18 of sheave 14, and the pin passes through hub 16 in a direction normal to the longitudinal axis of the block.

Pivotally mounted upon pin 17 is a clevis 19 adapted to receive a pin, rope or other device that may be used for securing the block to a stump. The pivotal connection of said clevis to the block body allows the block to arise or lower about said pin 17, and thus accommodate itself to the vertical position of the hauling rope.

My invention may be made of any size and constructed of any material deemed suitable or convenient for a device of this character, and while I have illustrated and described a preferred construction and arrangement of parts found desirable in materializing my invention, I wish to include in the application for Letters Patent all mechanical equivalents or substitutes that may fairly be considered to come within the scope and purview of my invention as defined by the appended claims.

VHaving thus described my invention so that others skilled in the art may be enabled to construct and to use same, what I claim as new and desire to secure by Letters Patent is 1. In a logging system for hauling logs, a hauling rope propelled by any source of power, a sheave block base, a sheave rotatably mounted upon said base, a clevis pivotally attached to said base and adapted to be secured upon the top of a stump, a guide adjacent said block base and said stump, said guide being placed across the path of the log and at such an angle with said path as will cause the log to be deflected past said stump.

2. In a logging system for hauling logs, a

3. In a logging system for hauling logs, a

hauling rope propelled by any source of power, in combination with means for causing a log to turn a corner without lowering the traveling speed of said rope; said means comprising an open sided guide sheave block disposed within the reentrant angle included between the two reaches of said hauling rope as it turns the corner, a swivel clevis connected to said block and adapted to allow the sheave to lie always in the plane of said rope, said clevis being secured to a stump located outside said reentrant angle. and a guide adjacent said sheave block and across the path of the log, said guide being adapted to deflect the log around said sheave block and around said stump.

at. In a logging system for hauling logs, a hauling rope propelled by any source of power in combination with means for caus' ing a log to turn a corner; said means comprising an open sided guide sheave block disposed within the angle included between the two reaches of said hauling rope as it turns the corner; a swivel clevis connected to said block adapted to allow the sheave to lie always in the plane of said rope, said clevis being secured outside said angle included between the two reaches of said rope: and a guide adjacent said sheave block and across the path of the log, said guide being adapted to deflect the log into a new path or direction of travel.

In witness whereof I claim the foregoing as my own, I hereunto aiiix my signature in the presence of two subscribing witnesses.

PHY SIMPSON.

Witnesses:

DAVID E. LOFGREN, CARL S. BROWN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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