Sawing machine
2 claims: 2 independent, 0 dependent
- 1I claim as my invention:1. In a device of the class described, a supporting frame having a top member and a bottom member, each of said members being provided with a circular opening, a saw A table rotatively mounted in the opening in the top member, a saw platform rotatively mounted in the opening of said bottom member, said saw table and said circular platform each being provided with an annular 75 rack, a pinion for each of said racks, a vertically arranged shaft for carrying and connecting both of said pinions to provide means whereby said saw table and said supporting table may be rotated in unison, and 80 means for imparting rotary movement to said vertical shaft.
- 2In a device of the class described, a supporting frame having horizontal top and bottom members, each of said members be- 85 ing provided with a circular opening, a saw table rotatively mounted in the opening of said top member, said saw. table being provided with, a saw slot, guide members carried by said top member, a circular platform so rotatively mounted in the opening of said bottom member, a saw frame pivotally mounted on said circular platform to swing in a vertical plane, a saw carried by the free end of said platform adapted to swing into 95 and out of position in the saw slot, of said saw table, each of said platforms being provided with an annular rack bar, a pinion for each of said rack bars, a vertical shaft for operatively connecting said pinions to 100 provide means whereby the said circular platform and said saw table may be rotated in unison so that the saw will, always be kept in alinement with the slot in said saw table and to provide means whereby the saw 10u may be rotated at various angles relative to said guides, and means for rotating said vertical shaft. ,, Des Moines, Iowa, December 0, 1922. LESTER T, FONDA. Secured to the back side of the frame member 411 have provided a spring 48, one end of which is connected to the circular platform 16 at 49. This spring tends to 6 normally hold the frame 39 in the position shown in clotted lines. At the forward end of the frame. 411 have provided a smaller spring 50 which is for the purpose of balancing the weight of the 10 frame 39. For positively limiting tne backward movement of the upper end of the frame 39 I have provided a link 39“ having one end pivoted at 39 b , and the opposite encl pro15 vided with a slot 39 c which is- designed to receive a pin 39 d secured in the irame member 40. The said link 39 a limits the movement of the frame backwards when the pin 39 a engages the upper end of the slot 39 c .. 20 Secured to the frame 39 I have provided an outwardly extending arm 51, the outer encl of which is provided with a hinge 53 to which a pedal portion 52 is secured. Tlie said hinge is so located that the pedal 525 may be swung upwardly and inwardly to such position that when the frame 39 is rotated, as hereinafter to be described, the pedal will not engage the posts 10. Secured to the top of the table 11 I have 80 provided the usual guide plates 54 which are adjustably mounted by means of thumb screws 55. . -,-.-4-11 By the arrangement just described, it will be seen that the plate 30 and the circular 35 platform 16 are both rotatively mounted and are designed to operate in unison by being connected to the pinion gears 23 and 2r onthe shaft 20. Thus it will be seen that the operator 40 may grasp the handle 27 and rotate the shart • 26, and that the plate 30 and the platform 16 will be rotated in unison. This will cause the frame 39 to also be rotated so that the saw 43 is always in alinement with the slot 45 111'40 By this arrangement the saw blade 43 may be brought into position parallel with the face of the guide plates 54 or transversely therewith, and at any immediate angles be60 tween the two positions so that the saw may be used either as a cross cutting or a ripping saw, and whenever desired, as a miter saw. . The saw is brought into operative position by the operator placing his foot on the 55 pedal '52 which will swing the upper end of
Independent claims2
23 paragraphs, as filed
Application filed December
The object of my invention .is to provide an improved saw .-mechanism· of simple, durable and inexpensive construction so arranged and constructed that it is adapted 5 to perform a number of different kinds of saw work.
More specifically it is tlie object of my invention to provide a. saw mechanism capable of being easily and quickly, adapted to vari1° oils kinds, of saw work, such as cross cutting, ripping and mitering.
These and other objects’ will,be apparent to those skilled in the art.
My invention consists in tlie construction, 1« arrangement and combination of the various parts of the device, whereby the objects, contemplated are attained, as-hereinafter more iuily. set forth,. pointed out in my claims, anti illustrated in the accompanying draw20 Ings, in which: °
Figure 1 is a plan view of my improved e 2 is a sectional view taken on the line 2—2 of Figure 1.
2;> Figure 3 is a transverse, sectional view taimen on tlie line 3—3 of Figure 2.
My improved device comprises a frame having legs 10 and a table 11 on the top „„ ?<sup>!li</sup> % <sup>legs</sup>· <sup>Near tlie</sup> lower end of the ·» legs 10 I have provided a platform 12 which is provided with a comparatively large circular opening 13. The said platform has in its upper face near the edge of the opening <sup>J 3</sup>’<sup>a</sup> “<sup>aP</sup> designed to carry a number Oi ball bearings 15. ' . Mounted on the balls 15 I have provided a ciicular pmtiorm 16 which is provided with a. downwardly extending portion 17 designed „o enter the opening 13, and a flanged portion 18 designed to rest on the balls 15 lhe circuinierential.edge of the flange 18. is provided with a-series of teeth 19.
Arranged vertically in one side of the 'TV v ? <sup>provided a shait 20</sup>vfre lower end. ο, which is provided with a pinion 21 designed to mesh with the teeth 19 of the piatwrm lo. lhe upper end of the shaft 20 is mounted in the table 11. The said table is provided with a recess 22 to receive a gear 23 on the . upper end of the shaft 20. The shaft 20 is also provided with a beveled gear 24 in mesh with the beveled pinion 25 said pinion being mounted on a horizontally arranged shaft 26, the outer end of which is provided with a hand wheel 27. The shaft saw
11, .1932, · Serial No. 609,166.
26,18 mounted in a .bearing 28<sup>a</sup> secured to the -lower face. of. the table 11. The table 11 ^.provided with a circular -opening 28 into which.extends.the circular flange 29. Said opening 28 being arranged -.vertically above 60 the opening 13.
notatively and slidably mounted on the Mange 291 have provided a circular plate 30 Which.is preferably formed of comparatively .wit metal such as aluminum, while.the table θ<sup>3 </sup>11®ay be lormed of. cast iron or steel. The p ate 30 is provided through its central portion with a slot 31 in which is mounted a wooden frame. 32. The said,frame 32 is provided vyrtli a slot 33 which is for the purpose 70 of receiving the saw hereinafter to be mentionea.
The circumferential edge of the plate'30 is formed with a groove 34 which is designed to.receive a.number, of pins ..35 for the pur- K Ρ°®Τ<sup>Ε r</sup>^<sup>a,ning</sup>. <sup>ths</sup> Plate within the ojienFXi \. vT P<sup>ins are insei</sup>'ted in the side i the table 11 m . such a manner that they may be removed at any. time desired.
<sup>edge</sup>· °<sup>f tlie plate 30 is</sup> also 80 pioviaed with a series, of teeth: 36 designed to mesh with, the gear 23.
Secured to the central portion of the circular platiorm ,16 are. bearing supports 37 in cc u'j^mounted a shafts. The said shaft ob has .«ecured .to-it a frame 39 which is provided, witlr uprights 40, the upper encl of said uprights being provided with. supportng members 41, said members having mounted thereon a shaft 42 by means of suitable, bearings.
The shaft 42 is provided to carry a circulai saw 43 and a belt wheel 44. The saw 43 <sup>wil</sup>- °P<sup>era</sup>te in the slot <sup>1,116</sup> P<sup>]ate</sup>,<sup>3</sup>9· Τ’<sup>116</sup> frame 39 being pivotally mounted is free to swing in su°h a manner-that,the saw 43 may be moved from one end of the slot 33 to the opposite end and also -so arranged that the saw will disappear below .the surface of the plate 30 vhen in one position of its movement as shown m clotted lines. ’
The frame 39 has mounted on it a motor a carrying a belt wheel 46 which is in alinement with the belt wheel 44, the last two wheels being designed to carry a belt 47.
By this arrangement it will be seen that 1 have provided means whereby the saw 43 may be constantly driven regardless of whatever position the same may be in
Oil·
105
110
1,584,036 the frame upwardly, carrying with it the saw 43. The circular plate 16 may be formed of comparatively heavy material so as to reduce the vibration of tlie saw as it is being operated. <sup>00</sup>
Thus it will be seen that I have provided a universal saw mechanism of simple, durable and inexpensive construction, which is adapted to perform a large variety of operations. . <sup>65</sup>
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Every citation, both ways
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Numbers
- Publication
- 1584086
- Application
- 60616622
Titles
- English
- Sawing machine
Classification
- CPC, 3
- B27B5/182
- Y10T83/7788
- Y10T83/7697
- IPC, 1
- B27B5 18
