US1933073A - Guide means for feeding bars of stock to machine tools - Google Patents

Description

Oct. 31, 1933. Q A RiCH I l,933,073

GUIDE MEANS FOR FEEDING BARS 0F STOCK To MACHINE TOOLS Filed June 20, 1932 Patented Oct. 31, 1933 UNITED STATES PATENT oFF/*ICE GUIDE MEANS FOR FEEDING BARS OF STOCK TO MACHINE TOOLS Application June 20, 1932. Serial No. 618,233

Claims.

My invention relates to improvements in guide means for feeding bars of stock to a machine tool such as a lathe or an automatic screw machine.

An object of my invention is to provide a guide means which will substantially `lessen a large amount of the noise which now takes'place in these tubes caused by the rotating bars forcibly striking against the side of the tube, thereby providing better efiiciency in the `worker and a substantial lessening of the noise attendant in such a machine. When bars of stockhave beeny fed to the guide tubes of this description, particularly if they happen to be of square, hexagonal, or other shape they tend to strike if they rotate therein against the sides of the tubesand become scratched.

A further object of my invention therefore is to provide a specific type of yielding cushioning lining, which in addition to the substantial elimination of noise tends to eliminate this knocking or striking. While I am aware that others have provided various types of devices for this purpose, the bar stock supporting lining has normally been mounted within a tube and while usually mounted alone within said tube may have a sheath or covering therefor additionally contained within said tube. While this has tended somewhat to lessen the noise and to prevent the striking, I have found that by supporting the lining throughout its length by a depending sleeve of flexible material preferably depending from an upper rod or tube, due to the larger opportunity for vibration in the open within the lower end of this flexible sleeve that the amount of noise is considerablylessened and the chipping of the bar stock considerablyv reduced.

, I preferably so construct my supporting means that the supporting sleeve and the supporting lining enclosed therein may be readily pivotally movable on this supportingy means and slidable relative thereto towards and away `fromthe operating parts of the machine and I preferably provide the supporting means so that the canvas or other type of exible sleeve employed can swing freely on all sides.

front standard at a different elevation from the operating-,stand to insert a new bar of stock within the lining without interfering withthe attachments on the machine tool, which elevation may beialsoadjustable pivotally and vertically so the loading point can be readily adjusted so as to have no interference with rvthe machine.

A further feature of myinvention is to provide means to ilexibly support a stock bar supf porting lining at all parts throughout its length These and such other objects of my invention as, mayhereinafter-appear will be best understood from a description of the accompanying` drawing which illustrates an embodimentthereof.

In the drawing, Fig. 1 is a, side elevation of my invention adjacent to a screw machine.

Fig. 2 is a longitudinal sectional viewy of the guide means I preferably employ showing the front and rear supporting standard heads, `the slotted upper supporting tube, the rod mounted within said tube, the resilient stock bar supporting lining and the exible supporting sleeve having the upper end thereof mounted on said rod, the sides thereof depending downwardly Jhrough said slot and the bottom thereof enclosing and supporting the resilient stock bar supporting lin- Fig. 3 is a front elevation of the upper portion of a front supporting standard consiructed in accordance with my invention showing the operating position of the guide meanssupporting `head' in full lines and the loading position on the load ing stand in dotted lines, with my specific guide tube shown in section along the vline, 3 3 of Fig. 1.

Fig. 4 isa rear elevation of the upper portion of the rear supporting standard showing my'improved guide means in section along the line 4-4 of Fig. 1.

In the drawing, wherein like characters of reference indicate like parts throughout, I have shown my invention applied to a screw machine 10 of standard type. In machines of this ydescription, the work 12 in rods or bars is slid through the rotating workholder 14 and projects through ternary in the prior art to provide guide means 22 of considerable length adapted to receive a rotating bar of stock or wire 12 and permit it to be worked on by various parts of the screw machine 10 and it has been only necessary for the operative to replace the rotating bar of stock. 12 at spaced intervals until the machine becomesl empty of stock. It is apparent however, Vthat as the stock 12 which may be round as shown, square, hexagonal, rectangular or otherwise revolves in the stationary guide means 22 that i3 will rattle therein and that the sides and ends thereof will tend to vibrate and strike against the inner side of the guide means 22, 'thereby causing a large amount of noise .and tending to break, chip or mar the corners of any irregularly shaped stock. My invention particularly relates to the substantial lessening of this noise and chipping. So far as I am aware inthe prior art the guide means has included a tubular slock bar supporting lining` 23 into which the rod 12 is inserted. The guide means itself includes the tube 24 into which the particular lining is usually inserted. I have found, however, that instead of mounting the supporting lining 23 within the tubular means 24, the amount of noise is substantially lessened and the chipping of stock substantially reduced if the supporting lining 23 is flexibly supported throughout its length, preferably by means 26 that will'permit it'to depend from said tubular guide tube or support 24 such as means 26 flexibly supporting said lining 23 throughout its length. In my particular embodiment shown the supporting tubular means 24 for resiliently supporting the lining is mounted on suitable fron. and rear supporting standards 28 and 30 respectively. To this end I provide a supporting tube 24 having a longitudinal slot 32 along the lower edge thereof and I preferably provide the cap members 34 having the side walls 36 threaded or otherwise flrmly secured to the ends of said slotted tubular supporting means 24. I also mount a rod 38 longitudinally within said tube 24 and preferably having the ends 40 thereof supportedv by the side walls 36 of said cap members 34. To support the tubular stock bar supporting lining 23, I preferably provide a nexible sleeve 26 constructed of any suitable flexible material/such as canvas or otherwise and one which is only preferably flexible and not resilient having the upperend 42 thereof exending upwards through the slot 32 and mounted over and around said rod 38 and the lower end thereof depending from said rod 38 and through said slot 32 land having the bar supporting lining 23 mounted within the lower end thereof. While the bar supporting lining may consisu of any sui?- able material, preferably resilient, I preferably as shown in the drawing employ the dat helically wound coil spring 23 and also for noise lessening purposes and to lessen the amount of metal actually in contact with the stock having spaced coils 25. I also preferably employ means to retain said spring or tubular lining 23 within the lower end 44' of said canvas sleeve 26. While any suitable type of means may be employed, I preferably employ the clip means 46 generally similar to a hose clip adapted to be clipped over the lower end 44 of the canvas sleeve and sides of the lining or spring 23 and having the upper ends 48 thereof joined together by a suitable bolt or other means 50 and nut 51. It is then obvious that the canvas sleeve 26 vis then mounted within'the slotted pipe or tube 24 and that the caps 34 prevent the sleeve 26 from slipping out end-wise and also function as stops to prevent the supporting rod 38 from slipping downwards. It is also obvious that employing my construction 1 ain enabled to support the stock lining 23 throughout its entire length. I believe therefore I am the rst to provide a resilient or flexible means for dependingly supporting the supporting lining 23 throughout its entire length and therefore completely enclosing it to prevent the sound escaping from within its supporting means as often happened where the supporting means was open at in'.ervals as in Various former types. It is also obvious that the retaining means 46 holds the spring or lining`23 within the canvas sleeve 26,

While any means to support this tubular supporting means 23 adjacent to and opposite the desired operating parts of the machine tool may be employed, I preferably as shown employ the supporting means including the tube 24, sleeve 26 and rod 38 and I preferably employ front and rear supporting standards 28 and 30 for supporting said means. The rear supporting standard 30 is provided with the usual base 52 and the supporting bracket 54 adjustably mounted vertically thereon by means of the set screw 56. Said standard 54 is provided 'with a head 58 having (as shown in Fig'. 4) a large tubular longitudinal channel 60 in the upper end thereof, a larger longitudinal channel 62 below it of a size to permit the free swinging of the lower end 44 of the sleeve 26 and lining 23 therein and a restricted longitudinal passage 64 connecting said channels 60 and 62 whereby the sides of the tube 24 as shown more particularly in Fig. 4 may rest on the lower portions G6 of said upper channel 60 to be slidably and pivotally mounted thereon as the tube 24 is of considerably less size than that of the channel 60. It is apparent that said tube 24 may readily frictionally slide over the supporting surfaces 66 of said head 58 and the sides of said sleeve 26 may freely depend through said connecting passage-way 64 and the lower end 44 of said sleeve, enclosed lining 23 and stock 12 may have free movement in all directions within said enlarged lower channel 62 to permit a free swinging vibratory motion thereof therein.

'I also preferably similarly construct the front supporting standard 28 for the front end of said tube with a similarly shaped operating bracket '70 and head 72. In this embodiment, however for purposes to be described the head 72 is prefer'- ably detachably connected to the bracket 70 thereof. The bracket '70 is also provided with means such as the set-screw 74 for adjustably varying its vertical height relative to the standard 28 and is provided at its upper end with the stud 'lforrning a bracket head supporting operating stud stand 78 adjustably mounted on said standard 28 having a detachable head '72 having a hole 80 in the lower end thereof for receiving the stud '76 for mounting of said head '72 on said bracket head supporting operating stud stand 78.

A further feature of my invention relates to improvements in the novel type of front support I preferably employ which also includes a bracket head loading stand 82. For this purpose I provide a right angle loading bracket 84 pivotally and vertically adjustably mounted on said standard 28. Said bracket 84 has the base 86 comprising a collar vertically adjustably mounted en said supporting standard 28 and settable in a locked position by the set-screw 88. he right angle bracket 84 may be varied in radial adjustment by means of adjusting the length of the lower end'90 thereof within a T joint 92 projecting at right anglesv from the collar 86 The bracket bar 84dethenfbent upwardly into -the upper,r end-,941m towhich the bracket head supporting loading stud standr82is vertically adjustably mountedby meanspf. the upperend94 of said bar 84 iittinginto aicollarf98- thereonadjustably securable `thereto at rdifferent heights. by means of the set screw 100* The loading stud stand 82 also has the stud 102Y projecting-upwardly therefrom. As uillustrated in Fig. 3 the front supporting head 72may thusbe readily removed frornzthe operating position on topV of the operating. stand by merely lifting it up. so that the hole thereof may bel withdrawn from the stud 76 thereof and then lowering 'it so that the hole 80 of saidhead '72 maybe mounted on the stud 182 of the bracket. head supporting loading stand 82.v It is, thus obvious that the loading stand may be adjusted out of the way-of the operating parts of the machine so that the guide means andthe guidehead 72 may be removedv to the loading stand 82 and the guide means 22 including the lining: 23. thereof may `be readily loaded in: position out, of the way of the operating parts of the machine tool and then moved into an operating4 position on top of the operating stand. 70 in line with said parts. It is thus obvious that as suggested in, Fig. 3 they loading position of the front headl 72 may be at a different elevation from the operating position thereof and that the loadincgstandv may be pivotally mounted to pivot at any angle relative to the front supporting standard 28 by unlocking the-set screw 88 and moving the collar 85 therearound and similarly at any height on the supporting standard 28; that the spacing between said stands may be adjustably varied by moving theend V out of theT collar 92 on adjustment of the :set screw 93 and that the vertical height of theV stand 82 may similarly be adjustably varied by' means of moving the collar 98on the upper end of the bracket bar 84 and suitably locking it thereon by means of the set screw 100, and by moving the T collar 86 vertically of the standard 28 and locking it in position by means of the set screwv 88.` Employing this constructionof bracket head, it is obvious that on movement of thefront head72 from the operating stand 70 to theloading stand 82 that the rear end of the tuber 24 andother supporting means enclosed may pivot freely within the specific structure ofthe rear supporting head 58, which I preferably employ and it is also obvious I that with this construction of operating head that the tube 24 including itsdepending sleeve 26, lining 23 and rod 12 may be slid on said heads 58 and .72 forwards andv backwards yaway from ,the machine tool 18 for loading or other purposes and thereby enabling the sound deadening sleeve 26 to be moved `immediately adjacent the operating parts of the machine tool, and that the particular construction of the head provides clearance for the canvas sleeve on. all sides so that it can swing and pivot very` freelypto readily take up the vibration and lessen the noise.l

Due to the fact that the supporting guide means may be readily slidend-.wise on ,the supporting heads 58Y and 72, it is obvious thatr the operator may move the stock'support 22 so he can more easilyk force the bar-12 into the feed fingers, etc. and that when this has been done the entire supporting means including the tube 24, sleeve 26, lining 23 etc. can be moved up close to the end of the spindle again, thereby guarding the rotating bar 12 andv substantially eliminating a largel amount of the attendant noise.

It is also apparent that the machine end of the supporting sleeve 26 allows freedom of movement and reduces the noise in the v,mouth of the'tube and at the same time .reduces the rattle near the" spindle. Inasmuch as the supporting means 22 can be swung away from the operating to avloadingposition, preferably at a different elevation from the operating rposition, the operator may readily insert a new barfof stock in the guide means 22 without interfering withthe attachments 14, etc. on theniachine tool and it isalso apparent that the adjustment of the loading position is independent of vadjustment for. running height so that the running height may be readily set andV the adjustment of the loading position varied, depending on the nature of the stock and height of the operative. The loading stand 82 is also pivotally mounted so as to be pivotable away from the supporting stand 70, thus permitting the operator to locate his loading point with the assurance that it will not interfere with themachine. It is thus apparent` that I have provided a novel typeof guide means for stock bars for machine tools such as screw machines which may be readily pivotally suspended preferably throughout its length from a suitable longitudinal extending supporting means, thereby allowing the portion thereof supporting the stock to vibrate freely, toswing if desired and to flexibly shake up and down to aid in absorbing the noise, and it is apparent that I have provided a novel construction, includingthis specific feature which may bereadily adjusted relative to the machine tool. e

It is also apparent that yI have provided a novel type of standards for guide means for machine tools of any type other than the specific type shown which may be readily adjustedk from a set operating position tov an adjustable loading position.

It is understood that my invention is not limited to the specific embodiments shown and that various deviations may be made therefrom without departing from `the spirit and scope of the appended claims.

What I claim is: n

l. Guide means for feeding barsv of stock to machine tools, including a supporting tube having a` longitudinal slot in the lower end thereof,

cap members having side walls for each end of the. tube, a rod mounted Alongitudinally within said tube having the lends thereof .supported by the side walls of said cap members, a canvas sleeve having the upper end thereof extending'upwards through said slot and mounted over and on said rod and the low-er bar stock receiving end dependingfromsaid rod, and through said slot, a coiled stock bar supporting spring mounted within the lower end of said canvas sleeve, clip means to retain said springV within the lower end of the canvas sleeve, a rear supporting stands ard for the rear end of said tube having a supporting bracket adjustably mounted thereon having a head having a tubularlongitudinal channel in the upper endthereof, a .larger longitudinal channel below it and a restricted longitudinal passage-way connecting said channels, whereby the sides of said tube may rest on the lower portions of said upper channel to be slidably and' pivotally mounted thereon, the sides of the sleeve may; freely dependthrough-said connecting Ypassageway and the lowerend. thereof supporting said spring may, have free movement within said lower channel, a front Supportingstandard for the-front endof .said tube having a right angle loading bracket pivotally and vertically adjustably mounted thereon, a bracket head supporting loading stud stand adjustably mounted thereon, a bracket head supporting operating stud stand adjustably mounted on the upper end of said standard, and a head of similar configuration and function to that of the rear stand head having a hole thereon for alternative mounting on the operating stud stand or loading stud stand, whereby said guide means may be readily loaded in a position out of the way of the operating parts of the machine tool and moved to an operating position in line with said parts.

2. Guide means for feeding bars of stock to machine tools, including a supporting tube having a longitudinal slot in the lower end thereof, a rod mounted longitudinally within said tube, a canvas sleeve having the upper end thereof extending upwards through said slot and mounted over and on said rod and the lower bar stock receiving end depending from said rod and through said'slot, a coiled stock bar supporting spring mounted within the lower end of said canvas sleeve, clip means to retain said spring within the lower end of the canvas sleeve, a rear supportingr standard for the rear end of said tube having a supporting bracket adjustably mounted thereon having a head having a tubular longitudinal channel in the upper end thereof, a larger longitudinal channel below it and a restricted longitudinal passageway connecting said channels, whereby the sides of said tube may rest on the lower portions of said upper channel to be slidably and pivotally mounted thereon, the sides of the sleeve may freely depend through said connecting passageway and the lower end thereof supporting said spring may have free movement within said lower channel, a front supporting standard for the front end of said tube, having a right angle loading bracket pivotally and vertically adjustably mounted thereon, a bracket head supporting loading stud stand adjustably mounted thereon, a bracket head supporting operating stud stand adjustably mounted on the upper end of said standard, and a head of similar configuration and function to that of the rear stand head having a hole thereon for alternative mounting on the operating stud stand or loading stud stand, whereby said guide means may be readily loaded in a position out of the way of the operating parts of the machine tool and moved to an operating position in line with said parts.

3. Guide means for feeding barsof stock to machine tools including a supporting tube having a longitudinal slot in the lower end thereof, cap members having side walls for each end of the tube, a rod mounted longitudinally within said tube having the ends thereof supported by the side walls of said cap members, a canvas sleeve having the upper end thereof extending upwards through said slot and mounted over and on Ysaid rod and the lower bar stock receiving end depending from said rod and through said slot, a coiled stock bar supporting spring mounted within the lower end of said canvas sleeve, and clip means to retain said spring within the lower end of the canvas sleeve.

4. Guide, means for feeding bars of stock to machine tools including a supporting tube having a longitudinal slot in the lower end thereof, a rod mounted longitudinally within said tube, a canvas sleeve having the upper end thereof extending upwards through said slot and mounted over and on said rod and the lower bar stock receiving end depending from said rod and through said slot, a coiled stock bar supporting spring mounted within the lower end of said canvas sleeve and clip means to retain said spring within the lower end of the canvas sleeve.

5. Supporting means for guide tubes for feeding bars of stock to machine tools, including a rear supporting standard for the rear end of said tube having a supporting bracket adjustably mounted thereon having a supporting head having a tubular longitudinal channel in the upper end thereof, a larger longitudinal channel below it and a restricted longitudinal passageway connecting said channels, afrontV supporting standard for the front end of said tube having a right angle loading bracket pivotally and vertically adjustably mounted thereon, a bracket head supporting loading stud stand adjustably mounted thereon, a bracket head supporting operating stud stand adjustably mounted on the upper end of said standard, and a head of similar configuration and function to that of the rear stand head having a hole thereon for alternative mounting on the operating stud stand or loading stud stand, whereby said guide means may be readily loaded in a position out of the way of the operating parts of the machine tool and moved to an operating position in line with said parts.

6. Supporting means for guide tubes for feeding bars of stock to machine tools, including a rear supporting standard for the rear end of said tube having a supporting bracket adjustably mounted thereon having a supporting head, a front supporting standard for the front end of said tube having a right angle loading bracket pivotally and vertically adjustably mounted thereon, a bracket head supporting loading stud stand adjustably mounted thereon, a bracket head supporting operating stud stand adjustably mounted on the upper end of said standard, and a head of similar configuration and function to that of the rear stand head having a hole thereon for alternative mounting on the operating stud stand or loading stud stand whereby said guide means may be readily loaded in a position out of the way of the operating parts of the machine tool and moved to an operating position in line with said parts.

'7. Guide means forrfeeding bars of stock to machine tools, including tubular supporting means having a longitudinal slot in the lower end thereof, supporting rod means longitudinally mounted within said tubular means, cap means for the ends of said tubular means, a bar stock supporting lining having a freely exible resilient side wall, a flexible supporting sleeve having the upper end thereof mounted on said rod means, the side wallsy thereof extending downwards through said slot and the lower supporting end thereof supporting said bar supporting lining, means to retain said lining 'in said iiexible sleeve, a rear supporting standard for the rear end of said tubular means and a front supporting standard for the front end of said tubular means, each having a supporting bracket Vvertically adjustably mounted thereon to permit free Vibratory movement of said sleeve and lining thereon and slidable and pivotal lmovement thereof, said front standard also having a loading bracket pivotally radially and vertically adjustably mounted thereo n and a tubular supporting means bracket head movable from the upper end of the supporting standard to said loading bracket;

8. Guide means for feeding bars of stock to machine tools, including tubular supporting means. having a longitudinal slot in thelower end thereof, supportingvrod means longitudinally mounted within said tubular means, abar stock supporting lining' having ra' freely flexible resilient side Wall, a -iiexible vsupporting sleeve having the upper end thereof mounted on said rod means, the side walls thereof extending downward-through said slot andy the lower supporting .end thereof supporting said bar supporting lining, means to retain said lining in saidA flexible -sleeve,a drear supporting standard forthe rearend of said .tubularmeans and a front-supporting standard for the front end of said tubular lmeans, each'having a fsupporting bracket vertically a'djustably mounted thereon .to permit free .vibratory movementof said sleeve and lining thereon .andslidable .and pivotal `movement thereof, said front standard also having a loading bracket pivotally radially and vertically adjustab'ly mounted thereon anda tubular supporting means Vbracket head movable from the upper end of the supportingtstandard to said loading bracket.

9. Guideimeans for feedingbarsJof stock to machine tools, including tubular'V supporting means having a longitudinal slot in the lower end thereof, supporting rod .means longitudinally mounted within said tubular means, cap means for the ends of :said tubular.means,.a bar stock supporting lining vhaving a freely flexible. resilient side wall, a flexible supporting sleeve 'having the upper end thereof mounted on said rod means, the side walls thereof extending downwards through said slot, and the lower supporting end thereof supporting said bar supporting lining, means to retain said liningin said flexible sleeve and means to support Ysaid tubular supporting means adjacent to and opposite the desired operating parts of the machine tool.

10. Guide means for feeding bars of stock to machine tools, including tubular supporting means having a longitudinal slot in the lower end thereof, supporting rod means longitudinally mounted Within said tubular means, a bar stock supporting lining having a freely flexible resilient side Wall, a flexible .supporting sleeve having the upper end thereof mounted on said rod means, the side walls thereof extending downwards through said slot and the lower supporting end thereof supporting said bar supporting lining, a rear supporting standard for the rear end of said tubular means and a front supporting standard for the front end of said tubular means, each having a supporting bracket vertically adjustably mounted thereon to permit free vibratory movement of said sleeve and lining thereon and slidable and pivotal movement thereof.

11. Guide means for feeding bars of stock to machine tools, including tubular supporting means having a longitudinal slot in the lower end thereof, supporting rod means longitudinally mounted within said tubular means, cap means for the ends of said tubular means, a helically Wound bar supporting resilient spring having spaced coils, a flexible supporting sleeve having the upper end thereof mounted on said rod means, the side walls thereof extending downwards through said slot and the lower supporting end thereof supporting said bar supporting spring, means to retain said spring in said flexible sleeve, a rear supporting standard for the rear end of said tubular means and a front supporting standard for the front end of said tubular means, each having a supporting bracket vertically adjustably mounted Athereonlto permitfree vibratory .movement of said sleeve and spring .thereon andL-slid ableand pivotal movement thereoLLsaid` frbnt standard also-having a.loading.bracketzpivotally radially and vertically adjustably\mountdthereonand a tubularVY supporting means ibrackethead movable `from the upper end of the supporting f standard `.to said loadingbracket.

Al2. Guide `means for :feedinglbars of '.stockf-.to machine, tools, 'including tubular. .supporting means having a longitudinal slotinthelowered thereof, Vsupporting rod `means longitudinally i the side walls thereof extending downwards through .said AslotV land Athe vlower supporting ..end thereof supporting said bar .supporting spring, means :to retainsaidspring in said exib'lesleeve and means to support `said .tubular :supporting means adjacent .tof-and vopposite "the Adesired operatingparts. of the .machine tool.

13.v .Guide :means forv feeding' `:bars of stccki-.to machine tools, ,including` tubularl `supporting means havingialongitudinal slot in itheldwer end thereof, supporting `rod means vlongitudinally mounted v.within said .tubular means, aphelically wound resilient bar supporting spring, aff-flexible supporting ysleeve having thegupper end thereof mounted on said rod-means, theside walls thereof extending downwards throughv ysaid .slot and .the lower supporting. end thereof;supportingsaid,bar supportingspring, a rearsupportingf.standard-fior the rear. end of saidtubularmeans .and a 'front supporting. .standard .for -the frontend of usaid tubulanmeans., eachrhaving `a supporting bracket vertically adjustably :mounted vthereoni'..0; fper.nlit free vibratory movement of said sleeve and spring thereon and slidable and pivotal movement thereof, said front standard also having a loading bracket pivotally radially and vertically adjustably mounted thereon and a tubular supporting means bracket head movable from the upper end of the supporting standard to said loading bracket.

14. Guide means for feeding bars of stock to machine tools including tubular supporting means having a longitudinal slot in the lower end thereof, supporting rod means longitudinally mounted within said tube, a helically wound resilient spring, a flexible supporting sleeve having the upper end thereof mounted on said rod means, the side walls thereof extending downwards through said slot andthe lower supporting end thereof supporting said bar supporting spring, and means to support said tubular supporting means adjacent to and opposite the desired operating parts of the machine tool.

l5. Guide means for feeding bars of stock to l machine tools, including a tubular stock bar supporting lining, supporting means, and means depending from said supporting means and extending the length of said lining to flexibly support said lining throughout its length.

16. Guide means for feeding bars of stock to machine tools, including a tubular stock bar supporting lining, front and rear vertically adjustable supporting standards, supporting means mounted slidably on said standards and flexible means extending the length of said lining for supporting said lining throughout its length depending from said supporting means. 17. Guide means for feeding bars of stock to machine tools, including a tubular stock bar supporting lining, front and rear supporting standards, supporting means mounted on said standards, and flexible means extending the length of said'lining for supporting said lining throughout its length, depending from said supporting means.r

18. A supporting standard for stock guide means for machine tools having a right angle loadingvbracket pivotally and vertically adjustably mounted thereon,a bracket head supporting loading stud stand adjustably mounted on the upper end of said standard, a bracket head supporting operating stud stand adjustably mounted on the upper end of said standard, and a guide` means supporting head having a hole thereon for alternative mounting on the operating stud stand or loading stud standk whereby said guide means may be readily loaded in a position out of the rWay of the operating parts of the machine tool and moved to an operating position in line with said parts.

19. A supporting standard for stock guide means for machine tools having an operating bracket mounted thereon, a loading bracket mounted on said standard and pivotally, radially'and vertically adjustablethereon, and a tubular supportingV means bracket head movable from the operating bracket to said loading bracket.

20. In a supporting standard for guide means for machine tools, a guide means supporting head, an operating stand mountedV on said standard, and a loading stand pivotally adjustably offset and vertically adjustable to different elevations from said operating stand, whereby said guide means supporting head may be moved to a loading position out of the way of the operating parts kof the machine tool.

2l. In a supporting standard for guide means for machine tools, a guide means supporting head, an operating stand mounted on said standard, andra loading stand at a different elevation from said operating stand, whereby said guide means supporting head may be moved to a loading position out of the Way of the operating parts of the machine tool.

22. Guide means for feeding bars of stock to machine tools, including a supporting tube having a longitudinal slot, a rod mounted longitudinally Within said tube and a canvas sleeve having the upper end thereof extending upwards through said slot and mounted over and on said rod and a lower bar stock receiving end.

23. Guide means for feeding bars of stock to machine tools, including tubular supporting means having a longitudinal slot, supporting rod means mounted within said tubular means, a flexible supporting sleeve having one end thereof mounted on said rod means, the side Walls thereof extending downwards through said slot and a lower bar stock receiving end.

24. Guide means for feeding bars of stock to machine tools, including a supporting tube having a longitudinal slot, a rod mounted longitudinally Within said tube and a canvas sleeve having a portion thereof extending through said slot and mounted over and on said rod and another bar stock receiving portion.

25. Guide means for feeding bars of stock to machine tools, including a tubular stock bar supporting lining, front and rear supporting standards, supporting means mounted on said standards, exiblemeans extending the length of said lining for supporting said lining depending from said supporting means, and means to retain said lining in position Within said exible means.

CHARLES A. RICH.

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