US2438610A - Log-and carriage-locking swingingsaw sawmill - Google Patents

Description

March 30, 1948. E. LAMBERT ,4

AND CARRIAGE-LOCKING SWIN GING-SAW SAWMILL LOG- Filed April 17, 1944 5 Sheets-Sheet l jfdmonz/ Jamie/77',

\LJ v March 30, 1948. E. LAMBERT LOG- AND CARRIAGE-LOCKING SWINGING-SAW SAWMILL Filed April 17, 1944 3 Sheets-Sheet 5 Patented Mar. 30, 1948 LOG- AND CARRIAGE-LOCKING SWINGING SAW SAWIWILL Edmond Lambert, Danielson, Conn.

Application April 17, 1944, Serial No. 531,463

6 Claims. (01. 14346) This invention relates to a saw mill especially adapted for cutting logs of tree length into desired or predetermined lengths, and has for the primary object the provision of a device of this character on which logs may be conveniently placed and. secured. against movement and a power driven saw easily movable relative to the logs and secured in any one of its several positions for cutting the log into determined lengths.

With these and other objects in view as will become more apparent, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to .be had to the following description and accompanying drawings, in which Figure 1 is a side elevation illustrating a saw mill constructed in accordance with my invention.

Figure 2 is an end elevation illustrating the device.

Figure 3 is a top plan view illustrating the log bed.

Figure 4 is a fragmentary vertical sectional view illustrating a clutch employed between the prime mover and the drive Wheels of the device.

Figure 5 is a fragmentary sectional view, illustrating one of the wheels and its mounting on the device.

Figure 6 is an end elevation illustrating my modified form of the invention.

Figure 7 is a fragmentary side elevational view, illustrating the means of releasably securing the saw carriage to the log bed.

Figure 8 is a fragmentary top plan view showing the log bed equipped with keepers to operate in conjunction with my modified form of the invention.

Figure 9 is an end elevation illustrating several logs positioned on the bed and secured in place A for sawing.

Figure 10 is a fragmentary end elevation illustrating several logs arranged on the bed and secured for sawing with the flexible element arranged between some of said legs.

Referring in detail to the drawings, the numeral 5 indicates a log bed, preferably of a size to accommodate thereon a log or logs of approximately tree length and. includes relatively spaced transverse members 6 and longitudinally extending members 7. The members 6 and 1 are suitably secured together and arranged in superposed relation and paralleling the longitudinally extending members are rails 8 forming a track over which a saw carriage 9 may move, either manually or by motive power. The rails 8 rest on the transverse members 6 and are suitably secured thereto. Also secured to the transverse members are log blocks I!) having concave faces II to accommodate one or more logs.

Rollers l2 are journaled on the transverse members to facilitate sliding of a log endwise of the bed to properly position the log on the bed for cutting into determined lengths. The rollers are preferably removably mounted on the bed. After the log has been positioned for cutting into determined lengths it is moved from the rollers transversely of the bed into the seats H of the blocks. It is preferable that the rollers l2 be located adjacent the blocks so that the distance in which the log must bemoved from the rollers to the seats of the blocks will be very short.

The saw carriage 9 includes a frame l3 equipped with flanged type wheels I4 engaging the rails 8 of the track and guided thereby during the movement of the carriage endwise of the bed in either direction.

A platform I4 is carried by the frame I3 and has mounted thereon an internal combustion engine or some other type of prime mover, indicated generally by the character [5. The engine is belted to a power shaft l6 journaled on the frame and which extends longitudinally thereof. A saw carrying lever I! is journaled on the power shaft and extends transversely of the carriage to .be manually manipulated in an upward and downward direction and has journaled thereon a circular type saw I8 belted to the power shaft. As the saw I8 may be raised and lowered manually and is driven by the prime mover, it provides a convenient Way in which the log on the blocks may be severed, the saw cutting the log in a downward direction. The operator having hold of the lever can govern the cutting action of the saw on the log.

A manually actuated lever I9 is pivotally mounted on the frame I3 and. includes a log securing fork 2| provided with tines 22 for biting into the log when the fork is brought into straddling relation with the log, as shown in Figure 2. An upward movement of the lever l9 will free the fork 2| from the log and a downward movement of the lever will bring the tines 22 of the fork into biting relation with the log and also bring the ends of the fork into keepers 24. The keepers 24 are arranged in pairs and are mounted on the transverse members 6 of the bed, so that the saw carriage can be secured against accidental movement in several selected positions to permit cutting of the log into determined lengths by the saw. This is accomplished by bringing the fork 2! into a pair of the keepers 24. The fork also being in engagement with the keepers and biting into the log prevents accidental movement of the log in the seats of the blocks while bein acted on by the saw.

It will be noted that as the log is sawed in two, one adjacent end portion of the severed section is supported on one of the transverse members 6 of the bed 5 so that the opposite and unsupported opposite end portion of the sawed length may lowering means (not shown) which may be simi- 'lar to the raising and lowering means for the gravitate downwardly during the cutting operation and thus tend to move the end face of the section being severed away from the opposed face of the saw and thus prevent the saw from binding in the log, this being accomplished .by the .saw

cutting the log always adjacent one of the transverse members 6 of the bed 5. In this connect-ion;

it is also noted that the. remainder or unsawed portion of the log is supported and held-tightly and immovably .on thebed .seat portions 1 D by the fork 21. Then, too, if the sawed length ofxthe log is long enough to extend across two or more of the bed vseats 1H3 it -.is substantially supported and thus there is no dipping or sagging tendency thereof to cause binding-on the saw blade.

As shown in Figure '10, the fork .2! maybe provided with an additional number ozf tines to that shown in Figure 2,:and also, as shown in Figures 9 and 10, a plurality of logs may be arranged on the blocks at one time for sawing into determined lengths and be secured thereon by the fork. It is preferable that two logs be arranged lowermost and a third log disposed thereabove andsaid third log may be separated'fr'om the lowermost logs by transverse flexible elements 25 arranged therebetween, asshown in Figure 10. The flexible elements may be in the form of pieces of rope which will assist in preventing the logs from binding the saw as it cuts through the logs. The fork may form an integral part of the lever or it-maybe separate and secured thereto in any well known manner. a a a A power shaft 2-6 -(-see Figure 4) is journaled on the frame l3 and is connected to a pair of the wheels M by endless sprocket chains 21 and sprocket gears 23. The lower sprocket gears 28 are secured fixedly on axle extensions 36 of at least a pair of the track wheels 44 :(see Figure 2) A conventional type of clutch 29 is connected to the engine l5 and the s'haftflfi. This construction permits moving of the carriage over the bed by the engine'at the willof theoperator to bring the saw into the 'difierent selected cutting positions. If desired, the clutch may have in combination therewith a reversing gear mechanism of a conventional construction so that the carr-iagemay be made to travel in either direction by the engine .over the log bed.

Referring to my modified form of invention shown in Figures 5 and 7, the carriage 9 is equipped with a reciprocating saw 33 to act on the log supported by the blocks of the bed. The saw :33 isof the buck type, consisting ofa frame 3 and a saw :blade 35' carried thereby. ,The

frame .35 is slidably mounted on vertically arranged guide rods 35. The guide rods .35 are slidably mounted on a horizontally arranged rod '35 carried by the carriage. A pitman block 37:15 slidably mounted on guides 23-8 carricdby the carriage and is connected to the frame 3% of thesaw by a ipitmantda. Another :pitman 39 is eccentricall-y pivoted at one end one drive .disc it l secured to a power shaft d2 journaled on thecarriage and aforesaid circular saw.

To secure the carriage in any one of its several selectable cutting positions in this form of my and from said keepers throughthe pivotal movement of a hand lever 41 pivoted and on the carriage; .r .1

From the foregoing description taken in connection with the accompanying drawings, :it will be seen that a saw mill .has been provided which can be .convemently set up for use and is capable of accommodating logs of considerable lengths such as the substantial1yv full length of a tree trunk .andthat the device is capable of cutting such logs into desired or predeterminedlengths through a .rninimmneffiorton the part of the operators. The saw being power driven as well as the carriage being :movable relative to the logs by power, reduces to a minimum the amount of manual eflort necessary inV-the operation of this device. a V V 1 While I have shown and describedthe preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may bemade without departing from the spirit and scope .of the invention as claimed. r 1 7 Having thus described my invention, what! .claimis:

1. In a saw mill, a selectively positionable saw carriage, .9, power driven saw mounted on said carriage for cutting action :in a downward idirec 'on, ,an elongated log bed having 'the carriage mounted to slide longitudinally thereon and into said latch rod .cluding a longitudinal series of spaced seats for supporting a log at intervals throughout; the length of a log placed longitudinally :thereonsothat each log section as cut by the saw .isisup portedso as to prevent binding of 1the.-saw,'ke.epers .on said bed, and a locking device mounted mov ably on the carriage to engage any one .of the keepers relation zto which the carriage is selectively positioned for securing the -;carriage in saw cuttingaposition, said locking device including means to engage the log to secure the latter against lateral, rotary and longitudinal movemen-ts :on the seats-when said lockin device s in engagement with a keeper.

2. In a saw mill, elongated bed, a longitudinal track on said bed, means for supporting .logs longitudinally on the bed, :a carriage including wheels to engage the track tor the support of the carriage and its movement longitudinally of the track, :a prime mover carried :by the carriage, means ,ior driving at least one of the said wheels by the prime mover whereby to move the carriage, means for locking athepcarriage in :selected positions on the bed :wlrerebylto position the .ca-Lriage selectively f-or 113116301055 cutting of the supported log on the bed into sections of deter-mined lengths, said means also .:fastening the positioned log on its supporting means on the bed, a saw element mounted movably on the carriage in working relation to the positioned log on the bed and having an operative connection with said prime mover for its cutting action under the power of said prime mover, and means for moving said saw element into and out of cutting relation to the positioned log.

3. In a saw mill, an elongated bed, a longitudinal track on said bed, means for supporting logs longitudinally on the bed, a carriage including wheels to engage the track for the support of the carriage and its movement longitudinally of the track, a prime mover carried by the carriage, means for driving at least one of said wheels by the prime mover whereby to move the carriage, means for locking the carriage in selected positions on the bed whereby to position the carriage selectively for the cross cutting of the supported log on the bed into sections of determined lengths, said means also fastening the positioned g on its supporting means on the bed, vertically arranged guides mounted on the carriage, a saw frame slidably mounted vertically on said guides, means supporting said guides on the carriage for movement of the guides transversely of the carriage, a saw connected to the saw frame and movable therewith, and a drive means between the prime mover and the saw frame.

4. In a saw mill of the character described and including an elongated bed, said bed having a longitudinal series of transverse supporting blocks thereon and for-med with concaved upper seating portions, a saw carrying carriage movable longitudinally of said bed and traokways provided therefor on the bed, and lockin means carried by said carriage and cooperable with said block elements of the bed whereby to hold the carriage in selected positions on the bed for the cross cutting of logs supported longitudinally of the bed on said blocks, the concaved portions of said blocks being arranged and adapted for the reception of a plurality of logs placed longitudinally therein and in parallel relation to each other, and said locking means carried by said carriage having an arched portion positionable over the supported logs on said blocks of the bed in the engaging relation of said locking device with one of said blocks and said arched portion of the locking device having internal means for gripping and holding the logs on the blocks.

5. In a saw mill, a selectively positionable saw carriage, a power driven saw mounted on said carriage for cutting action in a downward direction, an elongated log bed having the carriage mounted to slide longitudinally thereon and including a longitudinal series of spaced seats for supporting a log at intervals throughout the length of a log placed longitudinally thereon so that each log section as cut by the saw is supported so as to prevent binding of the saw, keepers on said seats, and a locking device mounted movably on the carriage to engage any one of the keepers with relation to which the carriage is selectively positioned for securing the carriage in saw cutting position.

6. In a saw mill, an elongated bed, a longitudinal track on said bed, means for supporting logs longitudinally on the bed, a carriage including wheels to engage the track for the support of the carriage and its movement longitudinally of the track, a prime mover carried by the carriage, means for driving at least one of the said wheels by the prime mover whereby to move the carriage, means for locking the carriage in selected positions on the bed whereby to position the carriage selectively for the cross cutting of the supported log on the bed into sections of determined lengths, said means also fastening the positioned log on its supporting means on the bed, a saw element mounted movably on the carriage in working relation to the positioned log on the bed and having an operative connection with said prime mover for its cutting action under the power of said prime mover, and means for moving said saw element into and out of cutting relation to the positioned log and operable from the same side of the carriage as the means for locking the carriage in a selected position.

EDMOND LAMBERT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 410,777 Abbott Sept. 10, 1889 462,962 Aiken Nov. 10, 189-1 606,051 Cunningham June 21, 1898 632,640 Butterfield Sept. 5, 1899 825,518 Cox July 10, 1906 859,211 Galyan et a1 July 9, 1907 909,454 Pye Jan. 12, 1909 1,025,773 Wolfe May 7, 1912 1,262,943 Gustafson Apr. 16, 1918 1,326,713 Dean Dec. 30, 1919 1,374,736 Hatley Apr. 12, 1921 1,660,710 Jacobson Feb. 28, 1928 1,856,169 Rosener et a1. May 3, 1932 2,254,293 Kaehlert Sept. 2, 1941 2,330,996 Rivers Oct. 5, 1943 FOREIGN PATENTS Number Country Date 69,371 Switzerland June 16, 1915 354,228 France July 21, 1905

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