US1302932A - Bobebt lagtjs - Google Patents

Description

R. LAGUS.

TREE FELLING MACHINE. ArrLlcmon mm Avn. 1s. 91s.

Patented May 6, 1919.

2 SHEETS-SHEET l.

ms mmm: rsu-ns m., rnamima. wmsumcwu. n. c.

which is reciprocated by the motorby means lofa, suitable motion transmitting-device and "fas t `-To all whom #may concorre y "t Beitl known vthat I, Ronn'r LAeUs, a` subf ject afweer-and nukeof Finland, and resi- 1 dentof 14: Lilla Tavastgatan, bo, in the x5 Grand"Duchy of "Finland, have invented certain new an useful Improvements in Tree` Felling Machines, of which "the following is" e` accompanying drawing.

' `This invention relates to a rtable tree ,ries` al `suitable vmotor and" a Shding rod,

` carries thesaw-blade. The said machine also V has agrod, guiding the saw-blade, while it cuts'itself .into the tree, and a device, by means of which the barrow is rmlyconnectedwin the @new be felled.

` My inventionconsists of the construction,`

combination and 4arrangement of partsyas i herein,` illustrated, described; and claimed.

" @Infthe accompanying drawings, forming parthereof, I have illustrated a form of embodiment of my invention, in which draw- 'similar reference characters designate corresponding parts, y and ink whlch':

` lis a side elevation;` l

1;"1Figl2 is a plan view; and A 1" Fig. 3 is a fragmentary detail in cross sec- 3.6 The said machine comprises a barrow, consisting of side bars 1 connected by cross y f "bars 2. In one of thesaid cross bars 2 `a.

pin 3 is fixed, around which can rotate a horizontal ring 4 (disk or the like) provided wtha dametricalbar 5, in which there is anopening for the pin 3. The said ring is i f y provided with a handle 6, by means of which the ring 4 can be rotated manually around thepin. A suitablemotor 7, in the drawy shown as an internal combustionen e Aisc'arried bythering 4. In` guides 8, xe

kto the? ring 4,a 9r is slidably-mounted, andcarries at` its forward end a saw-blade i "10 `To theshaft `11101: themotor 'i'.` a toothed `wheel-12y is 'fixed to meshfwith a toothed 'v wheel I3 rotatably mounted' on a. `pin l514,,

`1 whichis exea to a bar 15, 'connected with thefr'ingd. "On thesaid bar 15a bear' 16 "for the motor shaftll is rovided. he

ytoothed wheel ,'13 `has a cran pinfl and a 'Y vp'itmanl with the UNITED STATES OFFI" specification nr Lederwaren; Patented May, 19 Appuuon meanprn 1s, 1913;, sermnmmu. f y

` a bar 21 the foref end of which/fo a steclication, `reference kbeing. had therein l" to lendof, the hand lever 26. Inorder to en#` -ward the barrow. To the curve shaped cross bar 2 `of thebarrow teeth 29 are `sel"means of the handles the operators can mo started, the saw-blade is forced Qagainst afPinl ovement .sald arrangement ay reciprocatingym y 1s imparte to "the `bar 9 and -I vtheaw(-blade 10fby.,the.motor, whileoperating." `Alpin 20 1s fixed ,to fthe'ringv 4y about `.which can f vve `shapedguide"adapted'toen ackofthe saw-blade 10, Fig. 3. 'gliele end of the said bar 21 is acted; upon spr1ng22, fixed to the ring 4, Softhat th forw-ard endvof the bar 21 1s `forced against the'baclry of the saw-blade and" uidesqthe same, while it cutslitselfjinto e tree, fas .ya described below;r a f y z A cable 23 is connectedfwith a hook2l` provideddnthe forward end ofthe barrow, ,f

at. one side `ofthe same. Thesaid'fcable is l" placed around the tree to be cut and passes through a ring` 25 kfixed to thejfore end` of the barrow atthe o n with relation to lthe, hook 241x' Thejend offth cable 23` is securedto a hand1ever26,i.. iv oted to an upright'27,which isprovid on the barrow. The cable istightenedaround vthetree by means ,of the hand lever, which isheldin operative positionby:y any suitable meanslwfor instance by teeth 28` rovidedyonf thebarrow, which are engagedgy the lower gage or disengagethe hand leve1226` with y or from the teeth 28 there Lis ya slight play between the lever and its piv'ot'262fv The en'` gagement of the lever with theteetli is maintained bythe tension ofthecable acti to'- ont cured, which are forced into the tree,"`as the cable 23 is tightened around the same;y The handles 30 are pivoted to the barrow insuch manner, that they. can be swungy outward into the positionshown by dotted-liliesy the machine from tree to tree# "While 't machine is in operation, the saidl hand] occupy the `position shown'bfy full'lines;y When a tree is tobe cut oli' the barrow., n fixed to the same by means( of the cablej23 y and in the manner stated above, imm`ediately above the ground. L The barrow j fis then brought into a horizontal position by meansl of adjusting screws 31, providedlin therear end of the same. After the motor? has been tree by rotating the ring 4y by meansoffth H handle 6.- By feeding the` sawjthroughI tree normally, the "operator can trol the work of the saw, so that there ywill be no risk of the feed becoming too rapid, which would cause the saw-blade to break or stop the m'otor. While the saw-blade cuts itself into the tree, the rod 21 guides the same, until the rod contacts with the tree. The rod is then stopped in its motion, While the saw-blade passes farther into the tree.

Having now described my invention, what I claim'as new and desire to secure by Let,- ters Patent is In a tree-felling machine, the combination comprising asupport, a rotatable horizontally disposed member on rthe support, a. mol copines f um patent my be obtained for tor on the rotatable member, a rod slidably disposed on the rotatable member and arranged to be moved by the motor, a sawl blade connected to the rod, a U-shaped rod pivoted to the rotatable member and arranged to engage-'the back of the saw on the commencement of a eut, and a, spring member having one end secured to the rotatable member and its opposite end secured to the rear end of the U-shaped member.

In Witness whereof, I have hereunto signed my name.

ROBERT LAGUS.

ve cents each, by addressing the Commissioner of Patents,

Washington, D. U."

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