US1652084A - Saw - Google Patents

Description

F. ARiMoND INVENTOR ATIWEY F. ARIMOND Dec. 6, 1927.

SAW

m b om X .NhR

ATTOHIEY Patented Dec. 6, 1927.

, UNIT-EDl STATES i 1,652,084 PATENToFFICE.:

FREDERICK ARIMOND, OF CENTRL TANAMO," CUBA.

SAW.

Appneatignmed november is, y1925.V serial No. casse.

either a horizontal or a vertical position.

This invention also consists in certain other features ofv Construction and in the combination and .arrangement of the sevcral parts, to be hereinafter fully described, illustrated inthe accompanying drawings and specifically pointed out-.in the appended claims. .s

In describing my invention in detail, reference will `be had to the accompanying drawings wherein like characters denote like or corresponding` parts throughout the several views,sand in which L v Figure 1 is an elevationof the device.

Figure 2 is a plan View.`

Figure 3 is a vertical sectional view through the blade supporting and operating means. f

Hure 3.

p with the ends of the.crank`s.

In these views, 1 indicates a tripodlike fra-ine., the legs of which'are telescopic so thatrthe frame can be adjusted on uneven ground to make theV seat 2 at the converging portions of the legs level aswell as the saw supporting means. The' front leg of the framevis formed with a substantially rectangular shaped partB which forms a bearing for a crank shaft t, pedals 5 being connected A large gear 6 is fastened to the shaft. These parts are so arranged that a personsitting on the seat 2 can place his feet onthe pedal and thus ro-V tate the crank shaft and the gear by a movement of his feet. An upright frame 7 is formed on the lower end of the front leg of the main frame, and this frame 7 is formed'with a guideway 8 for a rod 9 and with a bearing 10 for a hollow shaftvll which has a pinion 12 at its inner end engaging thek kgear 6. A shaftr 13 is slidably mounted in the hollow shaft and is keyed thereto so that it must rotate with said hollow shaft 11. This shaft 13 has a beveled pinion 14 on Figure Lis `a section on line l-tof Figits outer-fend. The rod 9 has its outer end ,bent4 upwardly and .formed 'with Ya yoke 9 Ithrough one'V prongV of, which the shaft .13,

passes and rthroughthe other prongof `whichaspindle 15 passes, the spindle being held in :this ,prong` bythe nuts' and washers 16. This spindle extends horizontally Vfrom`r a vertically arranged hub A17 which has a socket therein which'is arranged diametricallyV opposite the spindle and receives a projection 18, at'the center of the'pinion 141:'.V The lower end of a saw shaft 19 is 'journaled in the hub land the 'upper end of this shaft is Vjournaled in an Varinf20- which is-rotatablyf supi Y' ported on thebearing 10 of shaft 11. AThe saw blade 22 is fastened to thel shaft'b'y means of the nut and"washer 23 which presses theblade against a gear 24 onv the shaft, saidfgear'k meshing with the gear 14.

"From thel foregoing, it will'be lseen that s and the like,'the nut'16 is loosened so that the hub 17 can be given a quarter turn to place the saw blade in a vertical position. Then the nut is tightened to hold the parts in this position. As kwillbe seen,vthe arm 20 moves with the saw shaft,'its inner part turning on part 10 ofthe frame 7 i The saw blade can also be moved toward and away from its work through means of the sliding bar 9 and the telescopic shafts 11 and 13; The parts are held in retracted position by the spring 2.5 on the rod 9 and a cable 26 which is fastened to the rear end of the rod 9 and passes' over the guiding pulleys 27 ,i is provided for movingthe parts for` waidly against the action of the spring when a handle 28 on the cable is pulled by the operator. This spring Y is a coiled spring arranged on the rod and having one end are provided with ball bearings 31 for reduelli ing frietion to a minimum.

Thus I have provided an e'l'leetive structure for operating a saw by the feet of the operator7 the operator sitting down with his hands tree to move the saw to and from its work. Ott course, if desired, al motor may be attached to the e `ank shaft so `thatthe saw will be power driven, and the parts may be so arranged that a number of men can sit on the frame and ope-rato crank shafts for driving the saiv, where one man would be unable to do the Work by himself.

It will, oit` Course, be understood that the saw can beheld at anyintermediate point between the vertical and horizontah if desired.

lt is thought from the foregoing deseription that the advantages and novel features ot my invention will be. readily apparent.

`l desire it to be understood that I may inake ehauges in the consti-notion and in the Combination and arrangement of theseveral parts, provided that such ehanges :tall with in the scope ot' the appended claims.

What l claim is 1` A saw1 device eomprising a trame, a tubular shaft journaled in said frame, a second shaft slidbly and non-rotatably mounted inthe lirst shaft., al beveled gear on the outer end of the se'eond shaft, a member slidably mounted in the 'trame and having y a yoke-shaped part through one`1nong ot which the second shaft passes. a hub having a part rotatably engerging` a projecting part on the gear7 a spindle on thehub passing through the other partot' the `yoke7 means for rotatably connecting the spindle with said part Vof the yoke, a` saw arbor rotatably mounted in the hub,`a beveled gear carried thereby and meshing 1with the first gear, a saw carried by the arbor, means permitting the slidable member to be moved to cause its yoke part to more thesaw outwardly againstthe work and means for rotating the tubular shaft.

2. A Sau' device eomln'ising a trame, a tubular shaft journaled in said frame, a Second `shat't slidably and` nonrotatably n'iounted in the first shaft, a beveled gear on the outer end of the second shaft, a member slidably mounted in the `frame and having a yoke-shaped part through one prong of which the second sha't't passes, a hub having a part rotatably engaging a projecting part on the gear, a spindle on the hub passingg`r through the other part of the yoke7 means 'for rotatably connecting the spindle with said part of the yoke, a saw arbor rotatably mounted in the hub, a beveled gear earried thereby and meshing with the lirst gear, a saw 'arrezl by the arbor7 means permit# ting the slidable member to be moved to cause its yoke part to .move the sa7 outwardly against the work, means for rotating the tubular shai'tand an L-shaped arm having a lararing at one end for engaging the part ol" the :traine which forme a bearing' for the tubular shaft and itsother endiormingl a bearing for the saw arbor.

l. A Haw lleviee comprising a frame provided with legs, a lront upright extension on the frame having a horizontal `bearing at its upper end anda horizontal guideway below the bearing, a rod slidablv mounted in the guideway and havingr its outer end bent at rightangles and formed `with a yoke, a spring on the rear part of therod Ytorholding the same in its rearward position yvithone prong ot the yoke engaging the :front end of the bearing, a tubular shaft rotatably mounted in the bearing, a solid sha'ltslidably and non-rotatably mounted in the tubular shaft, said solid shaft't passingthrough the inner prong of the yoke, a gear on the outer end ol said solid shaft, a hub rotatably mount ed on a projection at the center of the gear, a spindle on the. hubrotatably Connected with the outer prong` of the yoke, a saw arbor journaled in the hub, a saw carried thereby, a drive shaft mountedin the frame, gears connecting the same with the tubular shaft, a. cable eonnecti-al with the rear end ol" the slidable rod and passing over pulleye on the iframe parts for proj eating the rod when the cable is pulled upon, springl means for holding the rod in retracted position and a sea t on the frame,

ln. testimony whereof ,l allix my signature.

rnnnnmok AmMoNn.

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