US764484A

US764484A - Sawmill set-works.

Info

Publication number: US764484A
Authority: US
Inventors: Edwin C Monroe
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-03-14
Filing date: 1903-03-14
Publication date: 1904-07-05
Anticipated expiration: 1921-07-05

Description

No. 764,464. PATENTED JULY 5, 1904; B. c. MONROE. SAWMILL SET WORKS.

APPLICATION FILED MAB.- 14. 1903.

N0 MODEL. 3 SHEETS-4113B! 1.

51 I wanton (1 Nutmeg No.764,484.' PATENTEDJULY5.19O4.

l E. 0. MONROE."

SAWMILL SET WORKS.

APPLICATION 31mm MAR, 14. 1903'. no MODEL. 7 s BHEETB--BHBET 2.

PATENTBD JULY 5, 1904.

E. O. MONROE. SAWMILL SET WORKS. APPLIUATION rmm MAR. 14. 1903.

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Patented July 5, 1904.

PATENT EEICE.

EDWIN C. MONROE, OF LIBERTY, NEW YORK.

SAWMILL SET-WORKS.

SPECIFICATION forming part of Letters Patent No. 764,484, dated July 5, 1904.

Application filed March 14, 1903. Serial lie-147,828. (No model.)

To all whom it may concern:

Be it known that I, EDWIN C. MoNnon, a citizen of the United States, residing at Liberty, in the county of Sullivan and State of New York, have invented new and useful Improvements in Sawmill Set-VVorks, of which the following is a specification.

My invention has relation to improvements in sawmill set-works; and the object is to improve and simplify the existing art by providing a mechanism for setting the log in its relation to the saw which is simple in construction, accurate in the operation and results, and durable in the uses to which it is adapted.

The invention embodies an operating-wheel having indications of spaces for log movements thereon, a lever to actuate the wheel, measurements predetermined to indicate the scope of the lever movements, and means for restoring the setting mechanism to initial position.

The invention consists in the novel construction of parts and their assemblage or aggroupment in operative combination, all as will be hereinafter fully described and the novelty thereof particularly pointed out and distinctly claimed.

It may be prefaced that generally sawmill set-works are provided with ratchet wheels with index-pointers of some description opbe seen that there cannot be any variation when one wheel does all the work and indicates and announceswith convenience and certainty the predetermined movement and, result.

I have fully and clearly'illustrated my invention in the accompanying drawings, to be supporting table and the return-wheel which reverses the ratchet-wheel and returns it to the initial position. Fig. 3 is a top plan view of the device, showing the lever-table, the lever, and thereversing-gears. Fig. 4 is a plan view of a portion of the setting-wheel whereon are designated the cube designatirig-blocks and designatingdigures to denote themeasurements made by the successive revolutions of the setting-wheel. Fig. 5 is a plan view of a setting-wheel whereon are mounted cubes having designated numbers indicating the recurring figures to acquaint the sawyer of the succeeding scales of movement. Fig. 6is a plan view of a setting-wheel having successive movements of revolution marked thereon. Fig. 7 is a perspective view of one of the indieating-cubes.

In the drawings similar reference notations appearing in the several illustrations designatelike parts.

It has not been deemed essential to illustrate the head-blocks and log-beams nor the knees with which the device is associatedv further than to show the pinion on the lower end of the vertical shaft, which pinion engages with the rack, which moves the knees on the beam to set the leg up the required distance. These are all well known, may be of any approved construction, and constitute no part of my invention.

Referring to the drawings, A designates a vertically-arranged hollow cylindrical column or standard of such dimensions as may be required and having a base adapted to be secured to the log-beam in any suitable manner and by any suitable means. In the cylindrical column is rotatably arranged a vertical shaft 1, on the lower end of which is lixedly mounted a pinion 2, adapted to engage with the rack on the knee of the carriage in a well-known manner. The upper end of the vertical shaft 1 extends above the end of the hollow column and has keyed to the extending portion the horizontally-arranged setting-wheel 3, consisting of a wheel having a determined number of cogs graduated into segmental groups in relation to the pinion and rack, so that a prescribed movement of the setting-wheel will move the log-knee a certain prescribed distance, as will be more fully specified hereinafter.

From the upper portion of the column A projects a table 4, extending in a horizontal plane parallel with the lower face of the setting-wheel and having its outer edge curved concentric to the axis of the setting-wheel, and on this curved edge is marked a scale 5, representing one-half an inch to two inches, so that by placing the inner face edge of the lever on a radial line coincident, for instance, to the score representing one inch and pulling it to the stop the movement will move thesetworks one inch. By this means I dispense with all stop-pins exceptthe limit-pin 6, which is stationary and may be made integral with the table.

7 designates a collar secured movably on the column A in line with the upper face of the table, and to this collar is rigidly secured or made integral therewith a lever 8, which extends outward beyond the table and constitutes the means for operating the set-wheel. On this lever is pivotally mounted a pawl 9, which engages the teeth of the set-wheel and turns it with its shaft. To one end of the pawl is secured a rod 10, the outer end of which is suitably connected to the end of a hand-rod 11, which is pivotal-1y mounted on the outer end of the lever 8. The set-wheel 3 is formed on its under face with a rack 12, with which To the column A is fixed a horizontall'y-exwhat is claimed as new is tending arm 15, having a bearing formed on its outer end, on which is journaled the hub of a face-gear wheel 16', which meshes with an idler-pinion 17, journaled on a bearing 18-, formed on or fixed in a vertical arm 19, extending from the arm 15, as shown. dle 20 is provided to turn the wheel 16. The purpose of this mechanism is to return the set-wheel with its associated parts to the starting-point.

On the edge of the table 4 is fixed a pointer 21, which indicates to the operator that the desired point of movement of the set-wheel has been reached.

On the face of the rim of the set-wheel 3 are formed or secured a series of cubes 21, having marked thereon figures designating the tooth of the set-wheel with which the pawl 9 is to be engaged to move the wheel to the determined point indicating the cut-line for the saw. The same result may be accomplished by a ring-plate marked with the tooth-designations; but I prefer the cubes because they present more convenient means for visual observation of the required numbers.

To utilize the device after the log has been shaped by cutting off the slabs it is moved up against the faces of the knees. Then supposing it is intended to saw one-inch boards. All that is necessary is to turn wheel 3 so as to place the nose of the pawl 13 in the tooth which lies or is positioned directly under the tooth which designates the width of the log, say, sixteen inches, and allowing one-quarter inch for the saw-cuts or the thickness of the saw.

' Then the pawl 9on the lever would be placed in alinement with the tooth of the setting-wheel bearing the number 14f; and the lever pulled up to the stop 6, thus carrying the knees,with the log, the requisite distance to make the cut. Then in succession the pawl would be set in the teeth numbered 13 3-, 12%, 11,

The sawyer can set the log speedily, because he has only the set-wheel to observe, and the setting is attained with absolute accuracy, because there is nothing to get outof place, the wheel being fast on its shaftand the teeth bearing the correct relation at all times. To

expedite the work, after the log has been set and started the pawl may be placed in thenext proper tooth while the saw is cutting. By having the figures arranged asshown and the requisite spaces designated thereby it is not necessary to count the number of teeth toascertain the next place for the engagement of Z the pawl.

In the present instances shown in the drawings the set-wheel is intended as being seventeen inches in diameter and is provided with ninety-six teeth, so that eight teeth and two teeth for out shoves the log over to produce a one-inch board. I

Having thus fully described the invention,

1. In a sawmill set-works, a setting-wheel having its perimeter provided with a determined number of teeth divided into segmental groups, and cubes mounted on the face A hanof the wheel to designate the boundaries of the groups, said cubes having marked thereon figures to designate corresponding units of advance of the knee by the forward move- I ment of the wheel.

2. In a sawmill set-works, a hollow supporting-column, a Vertical shaft mounted rotatably in the column, a pinion on the lower end of the shaft to engage the knee-rack, a settingwheel mounted on the upper end of the shaft and provided with a determined number of teeth divided into segmental groups, designations on the wheel indicating boundaries of the l groups, and a comcident circular rack on its responding segmental groups, and a stop projecting Vertically therefrom, a lever mounted on the setting-wheel shaft to move on the plane of the table and lodge against said stop, a pawl on the lover to engage the teeth of the setwvlleel, whereby when the nose of the pawl engages in a designated tooth of the wheel it can be moved the distance indicated by the segmental group, and a pawl 13 to engage the circular rack under the setting-wheel.

EDW'IlN C. MONROE. In presence of Bmoe E. SANFORD, WALLACE M. KILBOURNE.