US1777603A - Lathe bed - Google Patents

Description

Oct. 7, 1930. F. B. cocKBuRN ET'AL 1,777,603

LATHE BED Filed Aug. l5. 1928 2 Sheets-Sheet l avt-vento@ NIE 35% Wy Ww( Oct. 7, 1930. B. COCKBURN ET AL LATHE BED Filed Aug. 13. 192s 2 sheets-smet 2 -I I I l "I "I Kl llll,

Patented Oct. 7, 17930A "UNITED STATES 'FRANCIS is. QQCKBURNUAND' HERMAN J.=BRE1TENBAQ11, orfcINcINNATI, onro, As-

t ysIGfNons To 'rnninonen a omdnconroanrronor omo i nppncafioiimea august 13, was.` serial Nassim.

` The invention `particularlyl relates to *the construction of a bed which lwillmore` lirrnly resist and withstand'torsional "strains and stresses as wellasve'rtical or bending strainsV to which the structure `is subjected* "l5 lIt consistsin conn'eotingthe side or `rail walls intermediate` of their 1 length with? a plurality of hollow struts; each strut open at its base and having vertical wallsfiiaring or curved outwardly at their ends, joining with theside` or rail walls to provide a .strutof `'greater-*width `at its'juncture with the side walls than in the center. The several struts form oblongppening's" in the center Aoi the bedandeachhas a rounded top wall to drain *'25 and shed the lubricant or chips downwardly for ,collection into a pan usu'allyf'disposed beneath thebed. 'Further features and advantages'of thefinvention willbe Vmorefully set forth` in the ""-530 "description of the accompanying drawings forming `apart of this specification, in which: Figure l is a centralfvertical section through the improved` bed, containing the hollow strutsfopenV at the baseandrwith a 'curved or rounded topwallf"` Y v Figure Qisga section on line 2f'-2,"Figure 1. "Figure 3 isan` end elevation of the bed, viewed from the head stock end. Y,

' f Figure isa section on line5`44LFigure 1.

"40 Figure 5 is an end elevation of the bed from the" tail stock end. i

`Referringr tothe drawings, l-'lindicates 'the sidewalls or rails of the bed of usual y cross section configuration, each'to'provide a -track or way-2 `forrvslidably orf-otherwise than "in 'the center thereof.

with the upper or top wall 7 lthereof'curved or rounded to drain orshed any lubricant 'tical walls 10--10 joining the :sidemwallsf'of curved formi horizontallyor are iared `at SHIPLEY TMACHINEV-TQOL COMPANY; or cINcINNATI, y I.

supporting a saddle or other part of the ma; chine tool,v usually bridging across the side walls to engage both thereof. i i i f i The sidewalls at their oppositeends "are` integrally connected i by f crosswalls or webs and, asfillustratedratthe left-hand or head stockrendyby a single crossfwallor'web; V3,

and atl the tail stockendfxby. ahollow fstrut 4 having an inclined upperwall `5 curved horizontally to 'provide ai greater width at r5.5 V

theljunotionof` the `strut with the side walls A pluralityof holl'owstruts (ifo at def# initey spacing` apart `join the sideVV walls intermediate of vtheir `longitudinal"` ends, the ai() struts being approximately .of duplicate formation,` with the nuniber e'inploye'd'fdepending upon the length of'theibed, and eachlis approximately of rectangular cross section,

or chipsfalling thereon downwardly through the opening formed `by the spacing of the struts and usually dropping into a pan,` or

like holder, disposed beneaththe bed; d The hollow strut is open atl its base prefer- `'ably having apair of openings 8 8 at relatively' oppos'ite sidesof acentral septum "-9 as'a vertical partition,` integralfwithlthe ver` the bed. The fopen-ingsin the base wallsprovide VAfor removal of the cores used in casting the structure.v

' The vertical wallsQ-lfof the strut are of S0 their endsto presentthesalne at aniacute angleto the side walls with which it joins,

and also to provide a greater `width of `strut at its` juncture with 1the side `wall thanii'n the center thereof.

The structure in cross section horizontally is approximately of H form asshown iin Figure`2, so thatthe wallsq'ualify 'as angularbraces, adding greater -rigiditytothe bed, and capable of withstanding 'greater 90 Y of chips or cuttings from the tool. The

`said sidewalls.

struts do not add any appreciableweight to the lathe bed but materially strengthen the structure'for heavy duty service.

Having described our invention, we claim: l. A machine tool bed comprising longitudinal 'sidewalls of substantial depth having upper surfaces forming tracks, and a transverse strut joining saidv side walls,said" strut comprising spaced lateral webs. terminating upwardly a distance below said tracks, and downwardly at substantiallythe lower edges of said side walls, at least oneof said Y webs having each end thereof divergent from that axial line of the strutY which isvtransverse to the side walls, said strut 'also comprising a top wally vconnecting said. lateral webs@ and theside walls.V s i. `2.y A machine tool-bed comprising longitudinal side walls of substantial depth having l`upper/.surfaces forming tracks, and a transversestrut joining-'said sidewalls, said struti comprising spaced lateral websterminating upwardly a distance belowsaid tracks andadownwardly at' substantially the lower edges of said sidewalls, at least one of said webs. having each end thereof divergent from that axial line ofthe struti which is trans'- 'verse'to-the side walls, said'stru'tfalso. Ycom- `prisingza 'top wall connecting saidlateral websk and the side walls and downwardly curved 'in a longitudinal ldirection. of the latter.

3. A machine tool bed comprising longitudinal side walls of substantial depth havingupper surfaces forming tracks, and a transverse strut joining said side walls, said vstrutl comprising spaced lateral webs terminating upwardly a distance belowsaid Vtracks 'andV downwardly atsubstantiallvthe lower edges of said side walls, eachof 'said Vwebs having each `end thereof divergent from that vaxial line of the strut whichA i'stransverse 'Ito the sidewalls, said strut also comprising a top wall connectingsaid lateral webs and 4. A machine tool bed comprising longitudinal side vwalls of substantial? depth having upperV surfaces forming tracks, and a transverse strut joining said side walls, 'said strut vcomprising spaced lateral webs terminating upwardly a. distance below vsaid tracks'anddownwardly at substantially the lower edges of said side walls, each of said -webs having each end thereof divergent from that axial line of thestrut which is transverse to the side walls, said strut alsoV comprising a top wall connecting'said lat-eral webs-and said side walls, said top wall having a top surface arched longitudinally of the side walls.

5. A machine tool bed comprising longitudinal side walls of substantial depth having upper surfaces forming tracks, and a plurality of integral longitudinally spaced transverse struts joining said side walls, each of said struts comprising spaced lateral webs terminating upwardly a distance below said tracks and downwardly at substantially the lower edges of said side walls, the lateral webs of each strutbeing curvilinearly divergentat their endsfrom that axial line of the strut which is 'transverse 'tofthe side walls, earch of said stru-tsfal'socomprising a top wall vintegrally*connecting its lateral webs and the side walls and arched longitudinally of the latter.

6. A machine tool bed comprising longitudinal side wallsV of substantial depth having upper surfaces forming tracks4 and' an integralv transverse strutjoining said side walls; said strut comprising spaced lateral websl terminating upwardly a distance below said tracks, and'L downwardly at substantially the lower.` edges of vsaid-side walls, each of said webshavingy each e'nd thereof curvilinearly diver'gent from that axial line ofthe strut which is transverse to the side lw'all`sa vertical webv integrally-'connecting the intermediate portions of'said lateral webs, and a top wall-integrally connecting said lateral webs and sidewalls and arched longitudinally of the latter.'

i' 7. A machine toolbed comprising longis tudinal 4side walls of substantial depth having upper `surfaces forming tracks, and an integral transverse Vstrut joining said side walls; said strut comprising spaced lateral webs terminating upwardly a distance below saidtracksand downwardly at substantially `the loweryedges ofsaid side walls, each of said webs having each end thereof curvilinearly divergent from that aXial line of the strut which is transverse lto the" side walls, 'a verticalfweb integrally connecting the intermediate portions of said' lateralwebs, a bottom wall integrally vconnecting said'lateral webs.` and lprovided with' a perforation at eachsidef of said vertical web, and" a top wall integrally connecting said lateral webs tranverse struts connecting said side walls; each of said struts comprising spaced lateral webs termin-ating upwardly a distance. below said tracks and downwardly at substantially the lower edges of said-side' walls, the lateral webs of each strut being curvilinearly divergent at their ends from` that axial; line of thefstrutwhich is transverse each of the side Walls,

to the side walls, each of said struts also comprising al top Wall and a bottom Wall integrally connecting its lateral Webs and the side Walls, said topV Wall being arched longitudinally of the side Walls and said bottom Wall being provided with an aperture adjacent and a vertical Web substantially midway between the side Walls and L and bottom'wallsof each strut. v

In Witness nvwhereof, We hereunto subscribe integrally joining the lateral Webs 0111' llames.

'FRANCIS 1B. oooKBURN. Y HERMAN J. BREITENBAGH.

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