US149649A - Improvement in log-turners for saw-mills - Google Patents

Improvement in log-turners for saw-mills Download PDF

Info

Publication number
US149649A
US149649A US149649DA US149649A US 149649 A US149649 A US 149649A US 149649D A US149649D A US 149649DA US 149649 A US149649 A US 149649A
Authority
US
United States
Prior art keywords
log
levers
shaft
turners
mills
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US149649A publication Critical patent/US149649A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6492Plural passes of diminishing work piece through tool station
    • Y10T83/6499Work rectilinearly reciprocated through tool station
    • Y10T83/65With means to cause or permit angular re-orientation of work about axis parallel to plane of cut
    • Y10T83/6504By member having work-engaging tooth
    • Y10T83/6505Including plural work-engaging teeth

Description

` 2 Sheets--Sheet 2.

L. P. GILBERT.

Log-Turners for Saw-Mills.

Patented Apri 14,1874.

. zufan l 6?'- l l/ UNITED i STATES PATENT OFFICE,

LEVI P. GILBER'L'OF FORT ATKINSON, WISCONSIN.

- IMPROVEMENT IN LOG-TURNERS FOR SAW-MILLS.

`Specification forming part of LettersPatent No. 149,649, dated April 14, 1874; application filed March 2l, 1874.

To all whom, it may concern:

Be it known that I, LEVI P. GILBERT, of Fort Atkinson, county of Jefferson and State of Wisconsin, have invented a new and useful Improvement in Log-Turners for Saw-Mills;

and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings making part of this specication, in whichy Figure l is a vertical longitudinal section of my log-turner. The full black lines show the parts in position for a log or cant tobe passed up to the knees upon the log-carriage, and the dotted lines show the parts in position ready to begin the operation of turning the log or cant. Fig. 2 is a front-end elevation of the machine. Fig. 3, Plate 2, is a perspective view of the machine, the parts being in the position shown by dotted lines in Fig. l.

The nature of my invention consists in a system of levers, cranks, windlass, and reversinggearing, as will be hereinafter described,whereby the log or cant is turned as much as desired, and the devices which turned it removed back out ofthe way for the passage of another log or cant over them, and then again are made to aid in forcing a new log against the knees as they are brought into position to be operated to turn the log or cant.

In the accompanying drawings, A represents a frame, on which the log-carriage B is constructed. O C are the knees of the carriage. D D are two separated hangers, suspended from the side beams of the frame, so as to be below the top thereof. E E are two vibrating beams, hung between the hangers upon a pin, c. To the rear ends of these beams two levers, F F', are pivoted. These levers are bent at the.point where they begin to rise above the log-carriage, so as to form an angle at b; and from this angle upward they are furnished on Vtheir back edge with ratchet-shaped teeth c; but in a full-sized machine those teeth will be much longer, and may be some inches apart. Thus constructed, the toothed edges of the levers form an angle with the log which they are to turn when brought up to the same, as shown in the drawings. By this means the log is turned without crowding but slightly against the knees. These levers are pivoted I is a windlass-shaft arranged below the crankshaft. rfhis shaft has a parting-collar, e, at its middle, and from the sides of this collar chains J J lead, and connect with rings of doubled chains K K. The chain K is connected to the ends of the two levers F F below its fulcrum, and the chain K is connected to the said levers above its fulcrum, at points a little below the angle of said levers, as shown. L is an intermediate gear-shaft, with friction-pulley M on its end, which stands loosely between two pulleys, N O, on the crank and windlass shafts. P is a shaft, with a friction-pulley on one of its ends and a grooved pulley on the other end. The grooved pulley of this shaft is geared to a grooved pulley on the intermediate shaft L by a crossed belt, Q. rDhese pulleys may be without grooves, and they maybe tooth-geared. The friction-pulley occupies a place under the pulley O. The shafts L and P are free to rise and fall slightly at those ends on which the friction-pulleys are placed; and to these loose ends the short ends of angular hand-levers R S are fastened, respectively, as represented. On the end of the intermediate shaft L a handcrank is represented; but, in practice, this shaft will be geared with the driving-power of the mill.

'Io operate the machine described, place the square block I, which represents a log after it has been squared or made into a cant, on the top of the frame and against the knees then place the right hand upon the crank, and with the left hand push the lever It backward, so as to bring the pulley of shaft l? in gear with pulley of shaft I. Now, by turning the crank the chains will draw down the lower or rear ends of the levers F F', and cause their upper or forward ends to move from the position shown in black lines in Fig. 1 to the position shown in dotted lines in same figure. Now, by releasing lever It and pressing back upon lever S, so as to throw the shaft L in gear with crankshaft, and continuing to turn the crank, the

levers will be caused to alternately bite and move against the corner of the log, and, in so doing, will raise this corner of the log, and as fast as the corner of the log is raised by one lever the log is prevented from falling by the other lever' biting upon it and continuing the turning movement of the log. The log being turned as much as desired, the levers F F can be brought back out of the Way by pulling the lever S forward, so as to cause shaft L to gear with windlass-shaft, and continuing to turn the crank. The latter adjustment reverses the motion of the windlass-shaft, and causes the chain to draw upon the upper ends of the levers, and thereby move them overV out of the way, or tothe position shown in full black lines in Fig. l, which is below the log-carriage.

The operation of the machine is such that it will keep the log turning as long as wanted; and it will turn a log three feet and a half in diameter clear round in less than iive seconds, which is much quicker than by ordinary approved modes.

The machine can be stopped at any point, and it will hold the 10g firmly against the knees while it is being dogged 0r examined by the Sawyer, which is a very important thing to secure.

The arrangement for getting the levers out of the Way permits another logto be rolled up near the carriage, in position for being rolled upon the carriage by the contact of the levers. By this means the cant-hook and one man may be dispensed with. Thus a great saving in time and labor is effected.

It is evident that a greater number than two levers may be used, and also that the friction-pulleys may be substituted by toothed gearing without chan ging the invention I have made.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The levers F F for turning logs or cants, constructed and operated substantially as herein set forth.

2. The combination of the rocking beams E E', crank-shaft H, the Windlass-shaft I, inter-1 mediate shaft L, and the reversing-pulleys L l? and levers S R, substantially as and for the e purpose Set forth.

LEVI P. GILBERT.

Witnesses:

HENRY OGDEN, A. E. BALnWrN.

US149649D Improvement in log-turners for saw-mills Expired - Lifetime US149649A (en)

Publications (1)

Publication Number Publication Date
US149649A true US149649A (en) 1874-04-14

Family

ID=2219062

Family Applications (1)

Application Number Title Priority Date Filing Date
US149649D Expired - Lifetime US149649A (en) Improvement in log-turners for saw-mills

Country Status (1)

Country Link
US (1) US149649A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588735A (en) * 1949-05-17 1952-03-11 Letourneau Emile Gedeoin Belt-drive log-turning nigger
US2639738A (en) * 1949-08-15 1953-05-26 Daubel John Power operated push bar log turner
US20080145660A1 (en) * 2006-12-19 2008-06-19 Xiaorong Wang Fluorescent Nanoparticles
US20090054554A1 (en) * 2005-12-19 2009-02-26 Xiaorong Wang Disk-like Nanoparticles
US20110236686A1 (en) * 2009-12-29 2011-09-29 Hideki Kitano Well Defined, Highly Crosslinked Nanoparticles And Method For Making Same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588735A (en) * 1949-05-17 1952-03-11 Letourneau Emile Gedeoin Belt-drive log-turning nigger
US2639738A (en) * 1949-08-15 1953-05-26 Daubel John Power operated push bar log turner
US20090054554A1 (en) * 2005-12-19 2009-02-26 Xiaorong Wang Disk-like Nanoparticles
US20080145660A1 (en) * 2006-12-19 2008-06-19 Xiaorong Wang Fluorescent Nanoparticles
US20110236686A1 (en) * 2009-12-29 2011-09-29 Hideki Kitano Well Defined, Highly Crosslinked Nanoparticles And Method For Making Same

Similar Documents

Publication Publication Date Title
US1633920A (en) Sawmill carriage
US337661A (en) Stone-sawing machine
US832273A (en) Sawing-machine.
US436420A (en) Circular sawing machine
US162088A (en) Improvement in circular-saw mills
US229908A (en) Edwaed nunatf
US316752A (en) Circular sawing machine
US482103A (en) Portable band sawing-machin e
US309103A (en) Log-loader
US616163A (en) Portable sawmill
US176926A (en) Improvement in grubbing-machines and capstans
US223904A (en) gleason
US161903A (en) Improvement in machines for moving logs
US925194A (en) Sawing-machine.
US632640A (en) Log-sawing machine.
US145721A (en) Improvement in apparatus for transferring power
US238220A (en) Lumber-sorter
US235824A (en) Gang-saw mill
US755809A (en) Stack-climber.
US566624A (en) Portable sawmill
US156611A (en) Improvement in machines for making chair-bottoms
US159999A (en) Improvement in saw-mills
US1066730A (en) Combination-saw.
US4283A (en) Plawingr-machine
US450302A (en) Frictional gearing