US1973386A - Boring machine - Google Patents

Boring machine Download PDF

Info

Publication number
US1973386A
US1973386A US570063A US57006331A US1973386A US 1973386 A US1973386 A US 1973386A US 570063 A US570063 A US 570063A US 57006331 A US57006331 A US 57006331A US 1973386 A US1973386 A US 1973386A
Authority
US
United States
Prior art keywords
headstock
slide
rest
bars
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US570063A
Inventor
Rees C Morgan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Priority to US570063A priority Critical patent/US1973386A/en
Application granted granted Critical
Publication of US1973386A publication Critical patent/US1973386A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2709/00—Portable machines or devices for the cylindrical bores of valve bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
    • Y10T408/858—Moving means including wedge, screw or cam
    • Y10T408/8585—Moving means including wedge, screw or cam including oppositely moving, diverging tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/12—Radially moving rotating tool inside bore
    • Y10T82/125—Tool simultaneously moving axially

Definitions

  • Another object of my invention relates to the manner of mounting and rotating the central headstock of the spindle.
  • Another object of my invention relatesto the manner of adjustablyattaching the inner ends of the adjustable slide rest bars to the central rotating headstock.
  • Another object of my invention relates tothe 12() adjustable means for supporting the outer ends of the adjustable slide rest bars in such a way as to enable me to obtain a Wide range of angular adjustment for the slide rest bars.
  • Another object of my invention relates to the mechanism for adjusting and feeding the rests for the cutting tools.
  • Another object of myrinvention relates to the adjustable centering rings for centering or locating the device in the desired position on the Work being operated upon, and still another object of my invention relates to the mechanism for automatically feeding the slide-rests and cutting tools longitudinally in either direction on the slide-rest bars.
  • Figure 1 is a vertical longitudinal sectional elevation taken onthe line l--l of Fig. 2, illustrating the application of my boring machine in the position it will assume when secured on ⁇ the end of an oil Acracking'cylinder at substantially the beginning'of the working operation with parts broken away to more clearly show its construction;
  • Fig. 2 is an elevation of the front or operating end of the machine with part of the worm gear housing and bearings therefor broken away;
  • Fig. 3 is a rear end elevation of my device illustrating the manner of adjustably supporting the 554 same at this point by means Aof a tripod; y
  • pany a corporation of 1931, serial No. 570,063 (el. w-zi Fig. 4 is a detail view showing the manner of securing the cross-bar to the headstock, the headstock being in transverse section;
  • Fig. 5 is a detail View illustrating a shorter cross-bar attached to the headstock near the rear end;
  • Fig. 6 is a transverse section through the head-- stock taken on the line 6-6 of Fig. 1;
  • Fig. 7 is a detail section through a portion of the ring-gear and adjacent parts illustrating'the mannerof feeding lubricant to the ring-gear;
  • Fig. 8 is a detail View illustrating the manner gf mounting the cutting tools on the slide rest ars
  • Fig. 9 is a detail vertical section of the parts shown in Fig. 8, the section being takenon the line 9 9 of Fig. 10;
  • Fig. 10 is an end elevation, drawn on a larger scale of the outer end of one of the slide rest bars and the mechanism attached thereto showing the madnner of feedingand adjusting the cutting tool;
  • Fig.11 is a detail View of the trippingV mechanism for engagement with one of the star-wheels.
  • the numeral 1 indicates onerof the end portions of an oil cracking cylinder or like vessel having a tapered portion'with an inner wall 2, reduced neck portion 3 having an outwardly extending flanged edgei, to which is attached an annular member or ring 5 by means of bolts 6, three being preferably used to form a three point contact to avoid springing the ring 5 and ring-gear housing 1,7 to Whichfit 'is attached.
  • bolts 6 as indicated in Fig. 1 are ,each threaded into the ring 5 and extend therefrom through holes 'l in the flanged edge 4 and secured thereto by means of a washer and nut 8.
  • AEach bolt 6 has a convex and concave washer 9 and 10 mounted thereon'between the ring 5y and the hanged edge 4 to allow foruneven surfaces on the Work to which the ring may be applied.
  • the ring is further provided with ears 11 which extend inwardly over the periphery of the edge 4, having set bolts threaded therein 4as at 12, to allow for lateral adjustment of the ring 5 in-relation to the work to which it maybe applied.
  • a projection 13 A having a slot formed therein as at 14 for receiving a bolt 15 which is threaded into an extension 16 of a ring-gear housing 17 and adapted to clamp the ring 5 tothe said ring-gear housing 17.
  • a flange 18 extends outwardly from the lower edge of the projection 13, having perforations formed therein for receiving the outer ends of stud-bolts 20 which are threaded into the extension 16 with nuts 21 thereon for engaging the flange 18.
  • a set-bolt 22 is threaded into a perforation formed centrally in the flange 18 and engages the edge of the extension 16, said set-bolt 22 being locked in position by means of a nut 23.
  • VBy adjusting the bolt 15, nuts 21, set-bolt 22 and nut 23 the ring-gear housing 17 may be vertically raised or lowered slightly to give a further adjustment to the housing and the parts mounted thereon.
  • a ring-gear 24 having lateral extensions 25 is journaled in the housing 17, said ring-gear meshing with a pinion 26, the shaft 27 of which, is formed integral therewithv and is journaled in bearings mounted on top of the ring-gear housing 17 and secured thereto.
  • a worm-gear 28 is keyed to the shaft 27 and meshes with a worm 29 formed with a shaft 30 having a thrust bearing 30 mounted on one end, while the opposite end of said shaft is provided With a driving beltl pulley 31, as shown in Figs. 1 and 2, or it may have a direct gear drive if desired.
  • the ring-gear 24 isprovided with a central opening 32 which registers with an opening 33 formed in the outer hollow cylindrical end 34 of 4the headstock 35, said cylindrical outer end 34 of the headstock 35 being secured to the inner face of the ring-gear 24 by means of bolts 36.
  • Formed integral therewith at the inner opposite side edges of the hollow cylindrical end 34 are flanges 37.
  • the body portion of the headstock is formed integral with the cylindrical end 34 and comprises a central'web portion 38 extending to the ⁇ point marked 39 and flanged edges 40 and 41 which are connected together integrally at their inner ends as at 42 and has a cylindrical reduced end formed integral therewith as at 43 which is journaled in a removable collarv 44 mounted in a tripod 45 for supporting the inner end of the headstock.
  • the flanges 41 extend outwardly from the web 38 on opposite sides thereof in staggered relation to each other and have slots 46 formed therein extending from the flanges 37 to the end of the web 38.
  • Screw threaded rods 47 are journaled in the ilanges 37 and extend into the slots 46.
  • Collars 48 on the screw threaded rods 47 are adapted to Yhold them in position against longitudinal movement while its outer ends are squared as at 49 to receive a wrench for turning the same.
  • a slide rest bar 50 is secured at its inner end to each of the inner faces of the flanges 41 by means of bolts 51, each of said bolts 51 having its body portion 52 squared to engage the slots 46 which form guides for the same, and are provided with screw threaded perforations to receive the screw threaded rods 47.
  • the inner end of each of the bolts 51 having a washer 53 and nut 54 screwed thereon to hold them in position.
  • the slide rest bars extend outwardly from the headstock at an angle thereto and are supported near their outer ends by means of a crossbar'55 and bolted thereto as at 56.
  • the crossbar 55 being formed with slots 57 to allow for a greater or less angular adjustment for the slide rest bars.
  • y cross-bar 55 is secured to the beveled projecting edges 58 of the flanges 41 and inclined surfaces 59 formed on the cross-bar 55 by means of clamps 60 which are secured thereto by means of bolts 61.v
  • This cross-bar 55 may be adjusted longitudinally on the'headstock by means of a screw-shaft 62 which is threaded into the cross-bar 55 as at 63 and journaled in the cylindrical inner end 43 As indicated in Figs.
  • journal bearing 64 is formed with an enlargement as at 65 to receive a collar 66 formed on the screw-shaft 62 and thrust-washers 67 are disposed on each side of the collar 66, the parts being retained in place by means of an annular plate 68 secured to the inner end of the headstock by bolts as at 69.
  • the end of the screw shaft projects beyond the annular plate 68 and is squared as at 70 to receive a wrench for turning the same.
  • the bolts 56 and 61 are unscrewed slightly and a wrench applied to the squared end portion 70 and the screw-shaft 62 rotated in either direction to give the cross-bar 55 the desired longitudinal adjustment on the headstock and thereby giving a greater or less lateral movement to the slide rest bars, after which the bolts 56 and 61 are tightened.
  • each of the slide rest bars is formed with a dove-tailed slide-way 71 and grooved centrally as at 72 to receive a lead-screw 73, the inner end of which is journaled in a removable bearing 74 while each of the outer ends are journaled in a fixed bearing 75 formed at the outer ends of the slide rest bars and extends beyond the same being screw-threaded as at 76 to receive a spacing nut 77 and squared as at 78 to receive a starwheel 79.
  • a slide-rest 80 is mounted upon each of the dove-tailed slide-ways 71 of the slide rest bars having a downwardly projecting lug 81 extending into groove 72, said lug 81 being perforated and screw-threaded as at 83 to engage the leadscrew 73.
  • the slide-rest 80 is formed on its top surface with a dove-tailed slide-way for receiving a cross-rest 84 to the top of which is clamped the cutting tool 85 by means of the clamping bars 86 bolts 87 and nuts 88.
  • An L-shaped ange 89 extends outwardly from the cross-rest 84 in which is journaled an adjusting screw 90 threaded into the slide-rest 80 for adjusting the cross-rest thereon.
  • a beveled pinion 91 is mounted on the outer end of the adjusting screw 90 meshing with a bevel pinion 92 which has its shaft 93 journaled in a projection 94 projecting from the L- shaped flange 89 and has a cross hand lever 95 mounted on its outer end for operating the same.
  • the reduced cylindrical inner end 43 of the headstock is journaled in a removable collar 44 mounted in a tripod 45.
  • the tripod is formed with an annular central portion 96 which surrounds the collar 44 and is spaced apart therefrom by means of set-bolts 97 which are tapped into the annular central portion of the tripod with their inner ends engaging a groove 98 formed around the periphery of the collar 44. These bolts after adjustment are locked in position by means of nuts 99.
  • the removable collar 44 is further held against longitudinal movement by means of a flange 100 formed integral therewith at one side thereof, while the other side has a pair of cross bars 101 secured to the collar 44 by means of bolts 102, the ends of said bars 101 projecting over the face of the annular central portion 96 of the tripod,
  • the annular central portion 96 of the tripod has three equally spaced flattened portions 103 on its periphery to which is attached by means of bolts 104 the flanges 165 of the inner ends of the legs 106, 107 and 108 of the tripod.
  • the outer ends of the tripod legs are formed with laterally flanged edges 189 having set-bolts 110 extending therethrough for engaging the inner sides of the oil cracking cylinder 1. These set-bolts after adjustment being locked in position by means of nuts 111.
  • a slide-Way 1l2 having beveled edges, is formed integral with the leg 108 of the tripod to which is adjustably secured a slide 113 by means of the wedge block 114 stub bolts 115 and nuts 116.
  • An angular bracket arm 117 is attached to the slide 113 by means of bolts 118, the angular bracket arm 117 being slotted as at 119 to allow for longitudinal movement.
  • a tripper 121 having extensions 122 for engagingthe teeth of the star-wheels 79 mounted on the ends of the lead-screws 73.
  • a tooth of each of the star-wheels 79 is engaged by one of the extensions 122 and rotates the lead-screw 73 a partial rotation thereby advancing or retracting the rests carrying the cutting tools.
  • the tripper 121 can be adjusted to any desired position so that the extensions 122 will be in alignment with the lead-screw '13 to engage the teeth of the star-wheels at any angle the slide rest bars may be set.
  • Fig. 5 I have illustrated a cross-bar 55 attached to the headstock near 'the inner end.
  • This cross-bar is shorter than the one described above to allow the outer ends of the slide rest bars to be supported nearer the sides of the headstock, otherwise the structure is similar and the same reference numerals will apply thereto.
  • the tripod In mounting and assembling the boring machine on the end of the oil cracking cylinder 1, the tripod is detached from the machine, which may be done by partially unscrewing the set-bolts 97. One of the legs is then removed preferably 108 together with the set-bolts 97 at each side thereof. The parts of the tripod can then be inserted through the reduced neck portion of the oil cracking cylinder and set up or assembled in the proper required position.
  • the cross-bar 55 then has to be detached from the headstock, this is done by removing vthe annular plate 68 and unscrewing the screw-shaft 62 from the threaded portion 63 of the cross-bar 55.
  • Bolts 56 are then unscrewed from the slide rest bars and taken out and bolts 61 unscrewed to release the pressure of the clamps 60 on the lieadstock.
  • the cross-bar 55 can then be remo-ved from the headstock.
  • the slide rest bars are then adjusted to different positions by means of rotating one or both of the screw threaded rods 47 to allow the parts mounted thereon to clear each other and are then folded into the headstock.
  • the cross-bar 55 and the headstock can then be inserted into the oil cracking cylinder and the parts assembled and adjusted in the required position.
  • the cutting tools may then be turned over so that the cutting edges will engage the work in the proper manner and then adjusted by hand to move them slightly outward by means of the cross hand levers 95, the drive is then reversed and the rests and cutting tools feed backward, downwardly and outwardly until they reach the position indicated in Fig. l.
  • the cutting tools may be fed to the work up and down the tapered surface, the only thing requiring adjustment between each cut or stroke is to adjust the cutting tools by turning the cross hand levers 95.
  • a boring machine comprising a headstock formed w h a body portion provided with a central web and side flanges extending from both sides of the web, a ring-gear secured to the outer end of the headstock and journaled in a housing for supporting the outer end of headstock, a tripod having a central adjustable collar for supporting the inner end of the headstock, means for rotating the ring-gear and headstcck, a bracket adjustably mounted on one of the legs of the tripod, a tripper adjustably secured to the bracket, a slot formed in one of the flanges on each side of the web in staggered relation to each other, a screw threaded rod mounted in each slot and journaled in the outer cylindrical end of the headstock, a bolt having a screw-threaded perforation for engaging each screw threaded rod, a'slide rest bar having its inner end pivoted to each 'of the bolts and extending outwardly therefrom at an angle thereto, a cross-bar having a central
  • the headstock for support- '7 ing the of the slide rest bar, slots formed in the cross-bar, bolts passed through the slots and threaded into the slide rest bars for adjusting the outer ends of the slide rest bars, a screw-shaft journaled in the inner cylindrical end of the headstock for engaging the central screw threaded perfor-ation in the cross-bar for adjusting the cross-bar on the headstock, a slide-way formed on each slide rest bar, a groove formed in each oi the slide rest bars, a lead-screw mounted in each groove and journaled.
  • a tripod for supporting the inner end of the headstock provided with an annular central portion, a collar mounted in the annular central portion of the tripod adapted to form a journal bearingvfor the inner end of the headstock, a groove extending around the periphery of the collar, set-bolts threaded into the annular central portion and projecting into the groove for laterally adjusting the collar, means for rotating the headstock, adjustable slide rest bars pivoted at their inner ends to the headstock and
  • a boring machine comprising a headstock, means for rotating the headstock, a slide rest bar having one end pivoted to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock, a screw threaded rod journaled in the headstock for adjusting the pivoted end of the slide rest bar longitudinally of the headstock, a cross-bar adapted for longitudinal adjustment on the headstock for supporting the extending end of the slide rest bar, a slide-rest having a cutting tool attached thereto mounted on the slide rest bar, and a lead-screw journaled at both ends in the slide rest bars for feeding the slide-rest on the slide rest bar.
  • a boring machine comprising a headstock, means for rotating the headstock, a pair of oppositely disposed slide rest bars each pivoted independently of each other at one end to the headstoel; at an intermediate point and extending laterally and inwardly therefrom at an oblique angle to the inner end of the headstock, screwthreaded rods mounted in the headstock for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, a cross-bar for supporting the inwardly extending ends of the slide rest bars, a slide-rest having a cutting tool carried thereby attached to each slide rest bar, and means for feeding the slide-rests on the slide rest bars.
  • a boring machine comprising a headstock, means for rotating the headstock, slide rest bars each pivoted independently of each other at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom j, at an oblique angle to the inner end of the headstock, screw threaded rods journaled in the headstock for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, an adjustable cross-bar mounted on the headstock for supporting the inwardly extending ends of the slide rest bars, a slide-rest having a cutting tool attached thereto mounted on each slide rest bar, and a lead journaled in each slide rest bar for feeding each slide-rest.
  • a boring machine comprising a headstock, means for rotating the headstock, slide rest hars each having one end adjustably pivoted to the headstock at an intermediate point and adapted to extend laterally and inwardly therefrom at an angle to the inner end of the headstock, an adjustable cross-bar for supporting the inwardly extending ends of the slide rest bars, screw threaded rods journaled in the headstocl for adjusting the pivoted ends of the slide rest bars, a slide-rest provided with a cutting tool mounted on each slide rest bar, and automatic means for independently feeding each of the slide-rests on each of the slide rest bars.
  • a boring machine comprising a headstock, means for rotating the headstock, slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock, an adjustable cross-bar for supporting the extending end portions of the slide '90 rest bars, screw threaded rods journaled in the headstocl: for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a slide-rest mounted on each slide rest bar, a cross-rest adjustably mounted on each slide-rest, a cutting tool secured to each cross-rest, and automatic means for independently feeding each slide-rest on each of the slide rest bars.
  • a boring machine comprising a headstock, means for rotating the headstock, a pair of slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly from opposite sides thereof at an angle to the inner end of the headstock, means journaled in the headstock for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending ends o-f the slide rest bars, a slide-rest having a cross-rest carrying a cutting tool mounted on each slide rest bar, and automatic means for independently feeding each slide-rest longitudinally on each of the slide rest bars.
  • a boring machine comprising a headstock, a pair of slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly from opposite sides thereof at an angle to the inner end of the headstock, screw threaded rods journaled in the headstock for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending end m5 portions of the slide rest bars, a screw-shaft journaled in the inner end of the headstock for adjusting the cross-bar longitudinally of the headstock,
  • a slide-rest and a cross-rest provided with a cutting tool mounted on each of the slide rest bars, and automatic means for independently feeding each slide-rest longitudinally on each of the slide rest bars.
  • a boring machine comprising a headstock, means for rotating the headstock, means for latf5 erally adjusting the headstock, a pair of slide rest bars each adjustably pivoted at one end to the headstock and projecting laterally and inwardly at opposite sides therefrom at an angle to the inner end of the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending ends of the slide rest hars, means journaled in the inner end of the headstock for adjusting the crass-bar longitudinally of the headstock, means for adjusting the inwardly extending ends of the slide rest bars independently of each other on the cross-bar, a slide-rest mounted on eac'n of the slide rest bars, a cross-rest adjustably mounted on each slide-rest, and means for intermittently feeding the slide-rests independently of each other 1F gi] longitudinally in either direction on the slide rest bars.
  • a boring machine comprising a headstock, a ring-gear secured to the outer end of the headstock, a housing surrounding the ring-gear, lateral extensions on the ring-gear journaled in the housing, means connected to the work operated upon for supporting the housing, a pinion journaled in the housing connected .with power means for rotating the ring-gear and headstock, a pair of slide rest bars each adjustably pivoted at one end to the headstock and adapted to extend .laterally and inwardly therefrom at an angle thereto from each side of the headstock, a rcross-har mounted on the headstock for supporting the laterally extending ends of the slide rest bars, means for adjusting the cross-bar longitudinally of the headstock, a slide-rest mounted on each slide rest bar, a cutting tool mounted on each ⁇ slide-rest, a leadscrew journaled in each slide rest har having a threaded connection with the slide-rest, means for supporting the inner end of the headstock, a star-wheel secured
  • a boring machine comprising a headstock, means for adjustably supporting the innerl end of the headstock, va ring-gear secured to the outer Vend of the headstock, a housing surrounding the ring-gear, lateral annular extensions projecting from each side of thering-gear journaled in the housing, means connectedto the work operated upon for supporting the housing, means ⁇ for rotating the ring-gear and headstock, screw threaded rods journaled in each side ofthe headstook, a slide rest bar having one end adjustahly pivoted to one offthescrew threaded rods and extending laterally and inwardly therefrom .at an angle on opposite sides near the inner end of the headstock, a crossbar secured to the headstock for adjustably supporting the laterally extending ends ofthe slide rest bars, means for .adjusting the cross-bar on the headstock, a slide-rest carrying a cutting tool vmounted on each slide rest bar, a lead-screw mounted in each slide rest bar having a threaded connection
  • a .boring machine comprising a headstock, means secured to the work operated upon for supporting the ends ,of the headstock, means for rotating the headstock, a slide rest bar extending from opposite sides of the headstock each having one of their ends pivotally secured to the headstock at an intermediate point and extending laterally and inwardly .therefrom at an oblique angle to the inner end of the headstock, an adjustable cross-bar for supporting the laterally extending ends .of the slide rest bars, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally on the headstock, a slide-rest mounted on each slide rest bar, a cutting tool carried by each slide-rest, and means for feeding the slide-rests longitudinally ⁇ in either direction on .the slide restfbars.
  • a Vlooring machine comprising .a headstock, means for supporting the inner and outer ends ofthe headstock, means for rotating the headstock, a slide rest har having .one end pivotally connected to the opposite sides of the headstock 'at an intermediate .point in staggered-.relation to each other and adapted to extend laterally and inwardly therefrom at an oblique angle to the inner end of the headstock, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, adjustable means for supporting the laterally extending ends of the slide rest bars, a cutting tool mounted on each of the slide rest bars', means operated during the rotation of the headstock for lfeeding the cutting tools longitudinallyV on the slide rest bars, and independent means for laterally adjusting the cutting tools, Y .Y
  • a boring machine comprising a headstock, means for adjustably supporting the inner and outer ends of the headstock, means for rotating 90 the headstock, a slide rest bar extending laterally and inwardly from opposite sides .of the headstock each pivotally attached at one end to said headstock at an intermediate point,V screw threaded rods for adjusting longitudinally of the headstock .95 the pivotal connections for the inner' ends ofthe slide rest hars, a cross-bar mounted on the headstock for adjustably supporting the laterally extending ends of the slide rest bars, a cutting tool carried by each slide rest bar, and means operated during the rotation of the headstock for feeding the cutting tools longitudinally .on the slide rest bars.
  • V16. ⁇ In a machine for boring Vthe interior tapered wall surfaces of stills or the like ⁇ petti/'een the body 105 and reduced neck portions, comprising aheadstock adapted to be introduced .into the still through the neck, means for supporting the inner and outer ends of the headstock on the still, means for rotating the headstock, a pair of oppositely 1.10 inclined slide rest bars eachA having one end pivoted to the headstock at an intermediate point, said slide rest bars extending laterally and inwardly therefrom .at each side of the inner end of the headstock at an angle thereto and in parallel 1,15 relation to the interior tapered wall surface ofthe still, a slide-rest mounted on each slide rest bar,
  • a cutting tool carried by each slide-rest and means for feeding the slide-rests longitudinali-y on the slide rest bars during the rotation Yofthe 1x20 rporting the outer end of the headstock on the neck, means for rotating the headstock, a pair ⁇ of oppositely inclined slide rest hars each having ,13g one end piVoted to opposite sides of the headstock at an intermediate point, said slide rest :bars extending laterally and inwardly therefrom at each side of the inner end of the headstock at an angle thereto and in parallel relation to the interior135 tapered wall surface of the still, means for sup ⁇ porting the laterally extending ends of the slide rest bars, ⁇ means for adjusting the slide rest bars toward or away from the tapered side walls 4of the still, a slide-rest mounted on each slide rest 14@ har.,r a cross-rest mounted on the slide-rest, a
  • a slide rest bar pivoted at one end to each of the screw threaded rods and extending laterally Vand inwardly therefrom in opposite directions at ⁇ eachY side of the inner end of the headstock at an anglethereto and in parallel relation to the interior tapered wall surface of the still, a cross- ,bar Vfor supporting the laterally extending ends of the slide rest bars, means for adjusting the pivoted and laterally extending ends of the slide 'rest barstoward or away from the tapered side walls of the still,-a slide-rest mounted on each slide rest bar, a cross-rest mounted on the sliderest, a cutting tool carried by each cross-rest, means for feeding the slide-rests longitudinally 'on the slide rest bars during the rotation of the headstock, means for feeding the cross-rest carrying the cutting tool transversely of the slide rest bars, and means for rotating the headstock.
  • amachine for boring the interior tapered end wall surfacesV of stills or the like between the body and reduced neck portions comprising a headstock adapted to be introduced into the still through the neck, means for supporting the inner end of the headstock in the still, means connected to the neck adapted to support and rotate the headstock, a pair of oppositely inclined slide rest bars each having one end pivoted to theheadstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock and in parallel relation to the interior tapered end Wall surface ofthe still, a cross-bar mounted on the headstock for supporting the laterally extending ends of the slide rest bars, a screw-shaft journaled in the headstock for adjusting the cross-bar, means for adjusting the pivoted ends of the slide rest '-bars, a slide-rest mounted on each slide rest bar,
  • a cross-rest mounted on the slide-rest, a cutting tool carried by each cross-rest, means for feeding the slide-rests longitudinally on the slide rest bars during the rotation of the headstock, and
  • Va machine for boring the interior tapered end wall surfaces ofstills or the like between the body and reducedv neck portions; comprising a headstock adapted to be introduced into the still through the neck, means for supporting the inner end of the headstock in the still, means connected to the neck adapted to support the outer endof the headstock, a ring-gear secured to the outer end of the headstock, means for rotating the ring-gear and headstock, a slide rest bar pivotally secured at one end to each side of the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto and in parallel relation with the interior tapered end wall surface of the still, a cross-bar adjustably mounted on the headstock for supporting the laterally projecting endsl of the slide rest bars, means independent of each other for adjusting the ends of the slide rest bars and the angle of the slide rest bars in relation to the headstock, a slide-rest mounted on each slide rest bar, a cross-rest mounted on each sliderest, a cutting tool secured to each cross-rest,
  • bodyand reduced neck portions comprising a means for feeding the'cross-rests 'carrying the cutting tools transversely of the slide rest bars.
  • adjustable means for supporting the inner end of the headstock in the still, adjustable means connected to the neck adapted to support the outer end of the headstock, :a ring-gear secured to the outer end of the headstock, a housing surrounding the ring-gear, annular lateral extensions formed on the ring-gear journaled in the-housing, a driving pinion meshing with the ring-gear having its shaft journaled in the housing, a pair of oppositely inclined slide rest bars arranged centrally of ,the headstock, each of said slide rest bars having one end pivoted at an intermediate point to the headstock and extending laterally and inwardly therefrom at an angle parallel with the tapered end wall surface of the still, a cross-bar mounted-on the headstock for supporting the laterally extending end of the slide rest bars, a slide-rest mounted on each slide rest bar, a cutting tool carried by
  • a machine for boring tapered surfaces comprising a headstock, journal bearings for supporting the ends of the headstock, means for rotating the headstock in the journal bearings,
  • a pair of oppositely inclined slide rest oars centrally disposed and pivoted at one of their ends to the headstock and adapted to extend laterally and inwardly therefrom on each side of the headstock at an angle parallel to the tapered surface operated upon, screw threaded rods for adjusting the inner pivoted ends of the slide rest bars longitudinally on the headstock, an adjustable crossbar for supporting the laterally extending ends of the slide rest bars, a lead-screw mounted on each slide rest bar, a slide-rest mounted on each slide rest bar having a threaded connectionwith the lead-screw, a cutting tool carried byeach vslderest, astar-wheel secured to 'each of the leadscrews, and a tripper'adapted to engage the starwheel to 4rotate the lead-screws for feeding the slide-rests longitudinally on the sliderest bars during the rotation or" the headstock.
  • a machine for boring tapered surfaces comprising a headstock, means for supporting the inner and outer ends of the headstock, means for rotating the headstock, al pair'of screw threaded rods journaled in the headstock, a pair of oppositely inclined slide rest bars centrally disposed in relation to the headstock, each pivoted at one of their ends to one of the screw threaded rods and adapted to extend laterally and inwardly therefrom on each side of the headstock atan angle parallel to the tapered surface operated upon, a bolt having a threaded'connection with the screw threadedA rods for adjusting the -inner ends of each of the slide rest bars longitudinally on the headstock, a cross-bar mountedl on them@ headstock for supporting the laterally extending ends of the sliderestbarsya' screw-shaftl journaled in the headstock having a threaded connection with the cross-bars adapted to adjust the cross-bar longitudinally on the headstock, a lead-.145 screw mounted on eachslide'
  • a machine for boring tapered surfaces comprising a headstock having a hollow cylindrical outer end and a reduced cylindrical inner end, spaced flanges connecting the cylindrical ends of the headstock together, a web extending from the cylindrical outer end to a point near the center of the headstock for connecting the flanges together, a pair of oppositely inclined slide rest bars each having one end pivoted to the headstock between the flanges at an intermediate point and adapted to extend laterally and inwardly therefrom on each side of the headstock, and means for adjusting the slide rest bars whereby they may be folded into the body of the headstock.
  • a boring machine comprising a headstock, means for supporting the ends of the headstock, means for rotating the headstock, a pair of oppositely inclined slide rest bars each pivoted at one end to the heaclstocl: at an intermediate peint and extending laterally therefrom on opposite sides at an angle thereto, means for independently adjusting the pivoted ends oi the slide rest bars longitudinally of the headstock, means mounted on the headstock for supporting the laterally extending ends of the slide rest bars, a lead-screw journaled in bearings mounted in each slide rest bar, a slide-rest having a threaded engagement with each of the lead-screws, a cutting tool carried by each slide-rest, a star-wheel secured to each lead-screw, and a tripper for engaging the star-wheel to rotate the lead-- screws for feeding the slide-rests longitudinally on the slide rest bars during the rotation of the headstock.
  • a boring machine comprising a headstock, means for supporting the headstock, means for rotating the headstock, a pair of oppositely inclined slide rest bars each independently pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, cutting tools carried by the slide rest bars, and an adjustable cross-bar for supporting the laterally extending ends of the slide rest bars.
  • a boring machine comprising a headstock, means for supporting the ends of the headstock on the work operated upon, means for rotating the headstock, a pair of oppositely inclined slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto, means for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, a slide-rest mounted on each slide rest bar, a cutting tool carried by each of the sliderests, means for automatically feeding each sliderest longitudinally on the slide rest bars during the rotation of the headstock, a cross-bar secured to the headstock for supporting the laterally eX- tending ends of the slide rest bars, a screw-shaft threaded into the cross-bar and journaled in the headstoclc for adjusting the cross-bar on the headstock, and means for adjusting the laterally extending ends of the slide rest bars on the cross-bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Description

l R. C. MRGAN BORING MACHINE Sept. ll, 1934.'
Filed Oct. 2l, 195i 5 Sheets-Sheet 1 R. C. MORGAN BORING MACHINE Sept. 11, 1934.
Filed Oct. 21, 1951 3 Sheets-Sheet 2 R. C. MORGAN BORING MACHINE Sept. ll, 1934.
Filed OCC. 21, 1931 3 Sheets-Sheet v5 like@ 0. Marjan/Q Patented Sept. ll, 1934 BORINGl MACI'HNE Rees C. Morgan, Bethlehem, Pa., assigner to Bethlehem Steel Com Pennsylvania Application October 21,
.27 Claims.
410 to the adjustable star-feeding devices for feeding the boring tools. Y
Another object of my invention relates to the manner of mounting and rotating the central headstock of the spindle.
'15 Another object of my invention relatesto the manner of adjustablyattaching the inner ends of the adjustable slide rest bars to the central rotating headstock.
Another object of my invention relates tothe 12() adjustable means for supporting the outer ends of the adjustable slide rest bars in such a way as to enable me to obtain a Wide range of angular adjustment for the slide rest bars. ,y
Another object of my invention relates to the mechanism for adjusting and feeding the rests for the cutting tools.
Another object of myrinvention relates to the adjustable centering rings for centering or locating the device in the desired position on the Work being operated upon, and still another object of my invention relates to the mechanism for automatically feeding the slide-rests and cutting tools longitudinally in either direction on the slide-rest bars.A t
With the foregoing and other objects in view the invention comprises the novel construction, combination and arrangement of parts hereinafter more specically described and illustrated inthe accompanying Vthree sheets of drawings `-4:0v which forni a part of this specication and in which like charactersof reference indicate like parts: l
Figure 1 is a vertical longitudinal sectional elevation taken onthe line l--l of Fig. 2, illustrating the application of my boring machine in the position it will assume when secured on` the end of an oil Acracking'cylinder at substantially the beginning'of the working operation with parts broken away to more clearly show its construction; Fig. 2 is an elevation of the front or operating end of the machine with part of the worm gear housing and bearings therefor broken away;
Fig. 3 is a rear end elevation of my device illustrating the manner of adjustably supporting the 554 same at this point by means Aof a tripod; y
pany, a corporation of 1931, serial No. 570,063 (el. w-zi Fig. 4 is a detail view showing the manner of securing the cross-bar to the headstock, the headstock being in transverse section;
Fig. 5 is a detail View illustrating a shorter cross-bar attached to the headstock near the rear end; I
Fig. 6 is a transverse section through the head-- stock taken on the line 6-6 of Fig. 1;
Fig. 7 is a detail section through a portion of the ring-gear and adjacent parts illustrating'the mannerof feeding lubricant to the ring-gear;
Fig. 8 is a detail View illustrating the manner gf mounting the cutting tools on the slide rest ars;
Fig. 9 is a detail vertical section of the parts shown in Fig. 8, the section being takenon the line 9 9 of Fig. 10;
Fig. 10 is an end elevation, drawn on a larger scale of the outer end of one of the slide rest bars and the mechanism attached thereto showing the madnner of feedingand adjusting the cutting tool; an
Fig.11 is a detail View of the trippingV mechanism for engagement with one of the star-wheels.
Referring now to the various characters of reference on the drawings, the numeral 1 indicates onerof the end portions of an oil cracking cylinder or like vessel having a tapered portion'with an inner wall 2, reduced neck portion 3 having an outwardly extending flanged edgei, to which is attached an annular member or ring 5 by means of bolts 6, three being preferably used to form a three point contact to avoid springing the ring 5 and ring-gear housing 1,7 to Whichfit 'is attached. These bolts 6 as indicated in Fig. 1 are ,each threaded into the ring 5 and extend therefrom through holes 'l in the flanged edge 4 and secured thereto by means of a washer and nut 8. AEach bolt 6 has a convex and concave washer 9 and 10 mounted thereon'between the ring 5y and the hanged edge 4 to allow foruneven surfaces on the Work to which the ring may be applied. The ring is further provided with ears 11 which extend inwardly over the periphery of the edge 4, having set bolts threaded therein 4as at 12, to allow for lateral adjustment of the ring 5 in-relation to the work to which it maybe applied. Formed integrally and extending `downwardly from the lower edgeofthe ring 5 is a projection 13 Ahaving a slot formed therein as at 14 for receiving a bolt 15 which is threaded into an extension 16 of a ring-gear housing 17 and adapted to clamp the ring 5 tothe said ring-gear housing 17. A flange 18 extends outwardly from the lower edge of the projection 13, having perforations formed therein for receiving the outer ends of stud-bolts 20 which are threaded into the extension 16 with nuts 21 thereon for engaging the flange 18. A set-bolt 22 is threaded into a perforation formed centrally in the flange 18 and engages the edge of the extension 16, said set-bolt 22 being locked in position by means of a nut 23. VBy adjusting the bolt 15, nuts 21, set-bolt 22 and nut 23 the ring-gear housing 17 may be vertically raised or lowered slightly to give a further adjustment to the housing and the parts mounted thereon.
A ring-gear 24 having lateral extensions 25 is journaled in the housing 17, said ring-gear meshing with a pinion 26, the shaft 27 of which, is formed integral therewithv and is journaled in bearings mounted on top of the ring-gear housing 17 and secured thereto.
A worm-gear 28 is keyed to the shaft 27 and meshes with a worm 29 formed with a shaft 30 having a thrust bearing 30 mounted on one end, while the opposite end of said shaft is provided With a driving beltl pulley 31, as shown in Figs. 1 and 2, or it may have a direct gear drive if desired.
The ring-gear 24 isprovided with a central opening 32 which registers with an opening 33 formed in the outer hollow cylindrical end 34 of 4the headstock 35, said cylindrical outer end 34 of the headstock 35 being secured to the inner face of the ring-gear 24 by means of bolts 36. Formed integral therewith at the inner opposite side edges of the hollow cylindrical end 34 are flanges 37. The body portion of the headstock is formed integral with the cylindrical end 34 and comprises a central'web portion 38 extending to the `point marked 39 and flanged edges 40 and 41 which are connected together integrally at their inner ends as at 42 and has a cylindrical reduced end formed integral therewith as at 43 which is journaled in a removable collarv 44 mounted in a tripod 45 for supporting the inner end of the headstock.
The flanges 41 extend outwardly from the web 38 on opposite sides thereof in staggered relation to each other and have slots 46 formed therein extending from the flanges 37 to the end of the web 38. Screw threaded rods 47 are journaled in the ilanges 37 and extend into the slots 46. Collars 48 on the screw threaded rods 47 are adapted to Yhold them in position against longitudinal movement while its outer ends are squared as at 49 to receive a wrench for turning the same. A slide rest bar 50 is secured at its inner end to each of the inner faces of the flanges 41 by means of bolts 51, each of said bolts 51 having its body portion 52 squared to engage the slots 46 which form guides for the same, and are provided with screw threaded perforations to receive the screw threaded rods 47. The inner end of each of the bolts 51 having a washer 53 and nut 54 screwed thereon to hold them in position. Y
AThe slide rest bars extend outwardly from the headstock at an angle thereto and are supported near their outer ends by means of a crossbar'55 and bolted thereto as at 56. The crossbar 55 being formed with slots 57 to allow for a greater or less angular adjustment for the slide rest bars. y cross-bar 55 is secured to the beveled projecting edges 58 of the flanges 41 and inclined surfaces 59 formed on the cross-bar 55 by means of clamps 60 which are secured thereto by means of bolts 61.v This cross-bar 55 may be adjusted longitudinally on the'headstock by means of a screw-shaft 62 which is threaded into the cross-bar 55 as at 63 and journaled in the cylindrical inner end 43 As indicated in Figs. 1, 4, and 5 this of the headstock as at 64. The journal bearing 64 is formed with an enlargement as at 65 to receive a collar 66 formed on the screw-shaft 62 and thrust-washers 67 are disposed on each side of the collar 66, the parts being retained in place by means of an annular plate 68 secured to the inner end of the headstock by bolts as at 69. The end of the screw shaft projects beyond the annular plate 68 and is squared as at 70 to receive a wrench for turning the same. When it is desired to adjust the cross-bar 55 longitudinally on the headstock the bolts 56 and 61 are unscrewed slightly and a wrench applied to the squared end portion 70 and the screw-shaft 62 rotated in either direction to give the cross-bar 55 the desired longitudinal adjustment on the headstock and thereby giving a greater or less lateral movement to the slide rest bars, after which the bolts 56 and 61 are tightened.
One side of each of the slide rest bars is formed with a dove-tailed slide-way 71 and grooved centrally as at 72 to receive a lead-screw 73, the inner end of which is journaled in a removable bearing 74 while each of the outer ends are journaled in a fixed bearing 75 formed at the outer ends of the slide rest bars and extends beyond the same being screw-threaded as at 76 to receive a spacing nut 77 and squared as at 78 to receive a starwheel 79.
A slide-rest 80 is mounted upon each of the dove-tailed slide-ways 71 of the slide rest bars having a downwardly projecting lug 81 extending into groove 72, said lug 81 being perforated and screw-threaded as at 83 to engage the leadscrew 73. The slide-rest 80 is formed on its top surface with a dove-tailed slide-way for receiving a cross-rest 84 to the top of which is clamped the cutting tool 85 by means of the clamping bars 86 bolts 87 and nuts 88. An L-shaped ange 89 extends outwardly from the cross-rest 84 in which is journaled an adjusting screw 90 threaded into the slide-rest 80 for adjusting the cross-rest thereon. A beveled pinion 91 is mounted on the outer end of the adjusting screw 90 meshing with a bevel pinion 92 which has its shaft 93 journaled in a projection 94 projecting from the L- shaped flange 89 and has a cross hand lever 95 mounted on its outer end for operating the same.
As stated above the reduced cylindrical inner end 43 of the headstock is journaled in a removable collar 44 mounted in a tripod 45. The tripod is formed with an annular central portion 96 which surrounds the collar 44 and is spaced apart therefrom by means of set-bolts 97 which are tapped into the annular central portion of the tripod with their inner ends engaging a groove 98 formed around the periphery of the collar 44. These bolts after adjustment are locked in position by means of nuts 99. The removable collar 44 is further held against longitudinal movement by means of a flange 100 formed integral therewith at one side thereof, while the other side has a pair of cross bars 101 secured to the collar 44 by means of bolts 102, the ends of said bars 101 projecting over the face of the annular central portion 96 of the tripod, The annular central portion 96 of the tripod has three equally spaced flattened portions 103 on its periphery to which is attached by means of bolts 104 the flanges 165 of the inner ends of the legs 106, 107 and 108 of the tripod. The outer ends of the tripod legs are formed with laterally flanged edges 189 having set-bolts 110 extending therethrough for engaging the inner sides of the oil cracking cylinder 1. These set-bolts after adjustment being locked in position by means of nuts 111.
A slide-Way 1l2 having beveled edges, is formed integral with the leg 108 of the tripod to which is adjustably secured a slide 113 by means of the wedge block 114 stub bolts 115 and nuts 116. An angular bracket arm 117 is attached to the slide 113 by means of bolts 118, the angular bracket arm 117 being slotted as at 119 to allow for longitudinal movement. To the outer end of the bracket arm is adjustably secured by means of a bolt 120, a tripper 121 having extensions 122 for engagingthe teeth of the star-wheels 79 mounted on the ends of the lead-screws 73.
With each rotation of the headstock a tooth of each of the star-wheels 79 is engaged by one of the extensions 122 and rotates the lead-screw 73 a partial rotation thereby advancing or retracting the rests carrying the cutting tools. The tripper 121 can be adjusted to any desired position so that the extensions 122 will be in alignment with the lead-screw '13 to engage the teeth of the star-wheels at any angle the slide rest bars may be set.
In Fig. 5 I have illustrated a cross-bar 55 attached to the headstock near 'the inner end. This cross-bar is shorter than the one described above to allow the outer ends of the slide rest bars to be supported nearer the sides of the headstock, otherwise the structure is similar and the same reference numerals will apply thereto.
In mounting and assembling the boring machine on the end of the oil cracking cylinder 1, the tripod is detached from the machine, which may be done by partially unscrewing the set-bolts 97. One of the legs is then removed preferably 108 together with the set-bolts 97 at each side thereof. The parts of the tripod can then be inserted through the reduced neck portion of the oil cracking cylinder and set up or assembled in the proper required position. The cross-bar 55 then has to be detached from the headstock, this is done by removing vthe annular plate 68 and unscrewing the screw-shaft 62 from the threaded portion 63 of the cross-bar 55. Bolts 56 are then unscrewed from the slide rest bars and taken out and bolts 61 unscrewed to release the pressure of the clamps 60 on the lieadstock. The cross-bar 55 can then be remo-ved from the headstock. The slide rest bars are then adjusted to different positions by means of rotating one or both of the screw threaded rods 47 to allow the parts mounted thereon to clear each other and are then folded into the headstock. The cross-bar 55 and the headstock can then be inserted into the oil cracking cylinder and the parts assembled and adjusted in the required position.
The operation of my boring machine is as follows:-Assuming that the parts are in the position indicated in Fig. 1 of the drawings and power is applied to the worin shaft 30 by means of a motor drive or belt adapted to drive the pulley 31 shown on the drawings thereby rotating the worm 29 in either direction and imparting rotary motion to the worm-wheel 28, pinion 26, ring-gear 24 and headstock 35, As the headstock 35 rotates carrying the slide rest bars 59 and cutting tools, a tooth of each star-wheeljQ which is` mounted on the outer ends of the leadscrew 73 is engaged by one of the extensions 122 thereby rotating the lead-screw 73 a partialrotation and feeding the rests carrying the cutting tools forward and inward until they reach the end of the taper or stroke. If desired the cutting tools may then be turned over so that the cutting edges will engage the work in the proper manner and then adjusted by hand to move them slightly outward by means of the cross hand levers 95, the drive is then reversed and the rests and cutting tools feed backward, downwardly and outwardly until they reach the position indicated in Fig. l.
In this manner the cutting tools may be fed to the work up and down the tapered surface, the only thing requiring adjustment between each cut or stroke is to adjust the cutting tools by turning the cross hand levers 95.
It will be noted `that the cutting tools are shown as mounted at the outer end of the crossrest 84 but it will be readily understood that the cutting tools may be secured to the cross-rests at the opposite end, or at any intermediate points thereon.
Although I have described and illustrated my invention in considerable detail, I do not wish to be limited to the exact and specic details, thereof, as shown and described, but may use such modications in, substitutions for, or equivalents thereof, as are embraced within the scope of my invention or as pointed out in the claims.
Having thusv described my invention what I claim and desire to secure by Letters Patent is:
l. A boring machine comprising a headstock formed w h a body portion provided with a central web and side flanges extending from both sides of the web, a ring-gear secured to the outer end of the headstock and journaled in a housing for supporting the outer end of headstock, a tripod having a central adjustable collar for supporting the inner end of the headstock, means for rotating the ring-gear and headstcck, a bracket adjustably mounted on one of the legs of the tripod, a tripper adjustably secured to the bracket, a slot formed in one of the flanges on each side of the web in staggered relation to each other, a screw threaded rod mounted in each slot and journaled in the outer cylindrical end of the headstock, a bolt having a screw-threaded perforation for engaging each screw threaded rod, a'slide rest bar having its inner end pivoted to each 'of the bolts and extending outwardly therefrom at an angle thereto, a cross-bar having a central screw threaded perforation secured. the headstock for support- '7 ing the of the slide rest bar, slots formed in the cross-bar, bolts passed through the slots and threaded into the slide rest bars for adjusting the outer ends of the slide rest bars, a screw-shaft journaled in the inner cylindrical end of the headstock for engaging the central screw threaded perfor-ation in the cross-bar for adjusting the cross-bar on the headstock, a slide-way formed on each slide rest bar, a groove formed in each oi the slide rest bars, a lead-screw mounted in each groove and journaled. in bearings in each slide rest bar, a slide-rest mounted on each slide rest bar having a projection perforated and screw threaded to engage the lead-screw, a cross-rest mounted on each slide-rest, a cutting tool secured to each cross-rest, means for adjusting the crossrests and cutting tools laterally lor the slide rest and a star-wheel mounted on each leadscrew and adapted to engage the tripper during the rotation of the head-stock for feeding the 1 inner and outer cylindrical ends and nular member secured to the housing and adapted to be attached to the work, a tripod for supporting the inner end of the headstock provided with an annular central portion, a collar mounted in the annular central portion of the tripod adapted to form a journal bearingvfor the inner end of the headstock, a groove extending around the periphery of the collar, set-bolts threaded into the annular central portion and projecting into the groove for laterally adjusting the collar, means for rotating the headstock, adjustable slide rest bars pivoted at their inner ends to the headstock and adapted to extend outwardly therefrom at an angle parallel to the tapered surface operated upon, means for adjusting the inner pivoted ends of the slide rest bars longitudinally of the headstock, adjustable means for supporting the outer ends of the slide rest bars, a lead-screw mounted on each slide rest bar, a slide mounted on each slide rest lea-r having a threaded connection with the lead-screw, a cutting tool carried by each rest; a star-wheel secured to each of the lead-screws, and a tripper adapted to engage the star-wheel during the rotation of the headstock.
3. A boring machine comprising a headstock, means for rotating the headstock, a slide rest bar having one end pivoted to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock, a screw threaded rod journaled in the headstock for adjusting the pivoted end of the slide rest bar longitudinally of the headstock, a cross-bar adapted for longitudinal adjustment on the headstock for supporting the extending end of the slide rest bar, a slide-rest having a cutting tool attached thereto mounted on the slide rest bar, and a lead-screw journaled at both ends in the slide rest bars for feeding the slide-rest on the slide rest bar.
4. A boring machine comprising a headstock, means for rotating the headstock, a pair of oppositely disposed slide rest bars each pivoted independently of each other at one end to the headstoel; at an intermediate point and extending laterally and inwardly therefrom at an oblique angle to the inner end of the headstock, screwthreaded rods mounted in the headstock for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, a cross-bar for supporting the inwardly extending ends of the slide rest bars, a slide-rest having a cutting tool carried thereby attached to each slide rest bar, and means for feeding the slide-rests on the slide rest bars.
5. A boring machine comprising a headstock, means for rotating the headstock, slide rest bars each pivoted independently of each other at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom j, at an oblique angle to the inner end of the headstock, screw threaded rods journaled in the headstock for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, an adjustable cross-bar mounted on the headstock for supporting the inwardly extending ends of the slide rest bars, a slide-rest having a cutting tool attached thereto mounted on each slide rest bar, and a lead journaled in each slide rest bar for feeding each slide-rest.
6. A boring machine comprising a headstock, means for rotating the headstock, slide rest hars each having one end adjustably pivoted to the headstock at an intermediate point and adapted to extend laterally and inwardly therefrom at an angle to the inner end of the headstock, an adjustable cross-bar for supporting the inwardly extending ends of the slide rest bars, screw threaded rods journaled in the headstocl for adjusting the pivoted ends of the slide rest bars, a slide-rest provided with a cutting tool mounted on each slide rest bar, and automatic means for independently feeding each of the slide-rests on each of the slide rest bars.
7. A boring machine comprising a headstock, means for rotating the headstock, slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock, an adjustable cross-bar for supporting the extending end portions of the slide '90 rest bars, screw threaded rods journaled in the headstocl: for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a slide-rest mounted on each slide rest bar, a cross-rest adjustably mounted on each slide-rest, a cutting tool secured to each cross-rest, and automatic means for independently feeding each slide-rest on each of the slide rest bars.
8. A boring machine comprising a headstock, means for rotating the headstock, a pair of slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly from opposite sides thereof at an angle to the inner end of the headstock, means journaled in the headstock for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending ends o-f the slide rest bars, a slide-rest having a cross-rest carrying a cutting tool mounted on each slide rest bar, and automatic means for independently feeding each slide-rest longitudinally on each of the slide rest bars.
9. A boring machine comprising a headstock, a pair of slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly from opposite sides thereof at an angle to the inner end of the headstock, screw threaded rods journaled in the headstock for independently adjusting each of the pivoted ends of the slide rest bars longitudinally on the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending end m5 portions of the slide rest bars, a screw-shaft journaled in the inner end of the headstock for adjusting the cross-bar longitudinally of the headstock,
a slide-rest and a cross-rest provided with a cutting tool mounted on each of the slide rest bars, and automatic means for independently feeding each slide-rest longitudinally on each of the slide rest bars.
l0. A boring machine comprising a headstock, means for rotating the headstock, means for latf5 erally adjusting the headstock, a pair of slide rest bars each adjustably pivoted at one end to the headstock and projecting laterally and inwardly at opposite sides therefrom at an angle to the inner end of the headstock, a cross-bar mounted on the headstock for supporting the inwardly extending ends of the slide rest hars, means journaled in the inner end of the headstock for adjusting the crass-bar longitudinally of the headstock, means for adjusting the inwardly extending ends of the slide rest bars independently of each other on the cross-bar, a slide-rest mounted on eac'n of the slide rest bars, a cross-rest adjustably mounted on each slide-rest, and means for intermittently feeding the slide-rests independently of each other 1F gi] longitudinally in either direction on the slide rest bars.
11. A boring machine comprising a headstock, a ring-gear secured to the outer end of the headstock, a housing surrounding the ring-gear, lateral extensions on the ring-gear journaled in the housing, means connected to the work operated upon for supporting the housing, a pinion journaled in the housing connected .with power means for rotating the ring-gear and headstock, a pair of slide rest bars each adjustably pivoted at one end to the headstock and adapted to extend .laterally and inwardly therefrom at an angle thereto from each side of the headstock, a rcross-har mounted on the headstock for supporting the laterally extending ends of the slide rest bars, means for adjusting the cross-bar longitudinally of the headstock, a slide-rest mounted on each slide rest bar, a cutting tool mounted on each `slide-rest, a leadscrew journaled in each slide rest har having a threaded connection with the slide-rest, means for supporting the inner end of the headstock, a star-wheel secured to one end of the lead-Screw, .and a tripper adapted to engage the star-wheel and rotate the lead-screw for intermittently feeding the slide-rests longitudinally on the slide rest bars.
l2. A boring machine comprising a headstock, means for adjustably supporting the innerl end of the headstock, va ring-gear secured to the outer Vend of the headstock, a housing surrounding the ring-gear, lateral annular extensions projecting from each side of thering-gear journaled in the housing, means connectedto the work operated upon for supporting the housing, means `for rotating the ring-gear and headstock, screw threaded rods journaled in each side ofthe headstook, a slide rest bar having one end adjustahly pivoted to one offthescrew threaded rods and extending laterally and inwardly therefrom .at an angle on opposite sides near the inner end of the headstock, a crossbar secured to the headstock for adjustably supporting the laterally extending ends ofthe slide rest bars, means for .adjusting the cross-bar on the headstock, a slide-rest carrying a cutting tool vmounted on each slide rest bar, a lead-screw mounted in each slide rest bar having a threaded connection with each slide-rest, a star-wheel attached to .each of the lead-screws, and a tripper for engaging the star-wheel during the `rotation of the headstock for feeding the :slide-rests longitudinally in either direction .on the slide rest hars.
13. A .boring machine comprising a headstock, means secured to the work operated upon for supporting the ends ,of the headstock, means for rotating the headstock, a slide rest bar extending from opposite sides of the headstock each having one of their ends pivotally secured to the headstock at an intermediate point and extending laterally and inwardly .therefrom at an oblique angle to the inner end of the headstock, an adjustable cross-bar for supporting the laterally extending ends .of the slide rest bars, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally on the headstock, a slide-rest mounted on each slide rest bar, a cutting tool carried by each slide-rest, and means for feeding the slide-rests longitudinally `in either direction on .the slide restfbars.
14. A Vlooring machine comprising .a headstock, means for supporting the inner and outer ends ofthe headstock, means for rotating the headstock, a slide rest har having .one end pivotally connected to the opposite sides of the headstock 'at an intermediate .point in staggered-.relation to each other and adapted to extend laterally and inwardly therefrom at an oblique angle to the inner end of the headstock, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, adjustable means for supporting the laterally extending ends of the slide rest bars, a cutting tool mounted on each of the slide rest bars', means operated during the rotation of the headstock for lfeeding the cutting tools longitudinallyV on the slide rest bars, and independent means for laterally adjusting the cutting tools, Y .Y
15. A boring machine comprising a headstock, means for adjustably supporting the inner and outer ends of the headstock, means for rotating 90 the headstock, a slide rest bar extending laterally and inwardly from opposite sides .of the headstock each pivotally attached at one end to said headstock at an intermediate point,V screw threaded rods for adjusting longitudinally of the headstock .95 the pivotal connections for the inner' ends ofthe slide rest hars, a cross-bar mounted on the headstock for adjustably supporting the laterally extending ends of the slide rest bars, a cutting tool carried by each slide rest bar, and means operated during the rotation of the headstock for feeding the cutting tools longitudinally .on the slide rest bars.
V16.` In a machine for boring Vthe interior tapered wall surfaces of stills or the like `petti/'een the body 105 and reduced neck portions, comprising aheadstock adapted to be introduced .into the still through the neck, means for supporting the inner and outer ends of the headstock on the still, means for rotating the headstock, a pair of oppositely 1.10 inclined slide rest bars eachA having one end pivoted to the headstock at an intermediate point, said slide rest bars extending laterally and inwardly therefrom .at each side of the inner end of the headstock at an angle thereto and in parallel 1,15 relation to the interior tapered wall surface ofthe still, a slide-rest mounted on each slide rest bar,
a cutting tool carried by each slide-rest, and means for feeding the slide-rests longitudinali-y on the slide rest bars during the rotation Yofthe 1x20 rporting the outer end of the headstock on the neck, means for rotating the headstock, a pair` of oppositely inclined slide rest hars each having ,13g one end piVoted to opposite sides of the headstock at an intermediate point, said slide rest :bars extending laterally and inwardly therefrom at each side of the inner end of the headstock at an angle thereto and in parallel relation to the interior135 tapered wall surface of the still, means for sup` porting the laterally extending ends of the slide rest bars, `means for adjusting the slide rest bars toward or away from the tapered side walls 4of the still, a slide-rest mounted on each slide rest 14@ har.,r a cross-rest mounted on the slide-rest, a
cutting tool carried `by each cross-rest, means for feeding4 ,the slide-rests longitudinally on the slide rest `hars during the rotation of the headstock, and means for feeding the cross-rest trans- 145 yersely of .the slide rest lloars.` y
18. In a machine for boring the interior tapered wall surfaces of stills or the like .between t-he bojdy and reduced neck portions, comprising a headstock adapted to be `introduced into Vthe still 150 ,slot having one end journaled in the headstock,
a slide rest bar pivoted at one end to each of the screw threaded rods and extending laterally Vand inwardly therefrom in opposite directions at `eachY side of the inner end of the headstock at an anglethereto and in parallel relation to the interior tapered wall surface of the still, a cross- ,bar Vfor supporting the laterally extending ends of the slide rest bars, means for adjusting the pivoted and laterally extending ends of the slide 'rest barstoward or away from the tapered side walls of the still,-a slide-rest mounted on each slide rest bar, a cross-rest mounted on the sliderest, a cutting tool carried by each cross-rest, means for feeding the slide-rests longitudinally 'on the slide rest bars during the rotation of the headstock, means for feeding the cross-rest carrying the cutting tool transversely of the slide rest bars, and means for rotating the headstock.
' 19. In amachine for boring the interior tapered end wall surfacesV of stills or the like between the body and reduced neck portions, comprising a headstock adapted to be introduced into the still through the neck, means for supporting the inner end of the headstock in the still, means connected to the neck adapted to support and rotate the headstock, a pair of oppositely inclined slide rest bars each having one end pivoted to theheadstock at an intermediate point and extending laterally and inwardly therefrom at an angle to the inner end of the headstock and in parallel relation to the interior tapered end Wall surface ofthe still, a cross-bar mounted on the headstock for supporting the laterally extending ends of the slide rest bars, a screw-shaft journaled in the headstock for adjusting the cross-bar, means for adjusting the pivoted ends of the slide rest '-bars, a slide-rest mounted on each slide rest bar,
a cross-rest mounted on the slide-rest, a cutting tool carried by each cross-rest, means for feeding the slide-rests longitudinally on the slide rest bars during the rotation of the headstock, and
independent means for feeding the cross-rest transversely of the slide rest bars.
2i). In Va machine for boring the interior tapered end wall surfaces ofstills or the like between the body and reducedv neck portions; comprising a headstock adapted to be introduced into the still through the neck, means for supporting the inner end of the headstock in the still, means connected to the neck adapted to support the outer endof the headstock, a ring-gear secured to the outer end of the headstock, means for rotating the ring-gear and headstock, a slide rest bar pivotally secured at one end to each side of the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto and in parallel relation with the interior tapered end wall surface of the still, a cross-bar adjustably mounted on the headstock for supporting the laterally projecting endsl of the slide rest bars, means independent of each other for adjusting the ends of the slide rest bars and the angle of the slide rest bars in relation to the headstock, a slide-rest mounted on each slide rest bar, a cross-rest mounted on each sliderest, a cutting tool secured to each cross-rest,
bars during the rotation of the headstock, and
bodyand reduced neck portions, comprising a means for feeding the'cross-rests 'carrying the cutting tools transversely of the slide rest bars.
21. In a machine for boring the interior tapered end wall surfaces of stills or the like between the headstock adapted to be introduced into the still through the neck, adjustable means for supporting the inner end of the headstock in the still, adjustable means connected to the neck adapted to support the outer end of the headstock, :a ring-gear secured to the outer end of the headstock, a housing surrounding the ring-gear, annular lateral extensions formed on the ring-gear journaled in the-housing, a driving pinion meshing with the ring-gear having its shaft journaled in the housing, a pair of oppositely inclined slide rest bars arranged centrally of ,the headstock, each of said slide rest bars having one end pivoted at an intermediate point to the headstock and extending laterally and inwardly therefrom at an angle parallel with the tapered end wall surface of the still, a cross-bar mounted-on the headstock for supporting the laterally extending end of the slide rest bars, a slide-rest mounted on each slide rest bar, a cutting tool carried by each slide-rest, and means for feeding the slide-rests longitudinally on the slide-rest bars during the rotation of the headstock. l l
22. In a machine for boring tapered surfaces, comprising a headstock, journal bearings for supporting the ends of the headstock, means for rotating the headstock in the journal bearings,
a pair of oppositely inclined slide rest oars centrally disposed and pivoted at one of their ends to the headstock and adapted to extend laterally and inwardly therefrom on each side of the headstock at an angle parallel to the tapered surface operated upon, screw threaded rods for adjusting the inner pivoted ends of the slide rest bars longitudinally on the headstock, an adjustable crossbar for supporting the laterally extending ends of the slide rest bars, a lead-screw mounted on each slide rest bar, a slide-rest mounted on each slide rest bar having a threaded connectionwith the lead-screw, a cutting tool carried byeach vslderest, astar-wheel secured to 'each of the leadscrews, and a tripper'adapted to engage the starwheel to 4rotate the lead-screws for feeding the slide-rests longitudinally on the sliderest bars during the rotation or" the headstock.
23. In -a machine for boring tapered surfaces, comprising a headstock, means for supporting the inner and outer ends of the headstock, means for rotating the headstock, al pair'of screw threaded rods journaled in the headstock, a pair of oppositely inclined slide rest bars centrally disposed in relation to the headstock, each pivoted at one of their ends to one of the screw threaded rods and adapted to extend laterally and inwardly therefrom on each side of the headstock atan angle parallel to the tapered surface operated upon, a bolt having a threaded'connection with the screw threadedA rods for adjusting the -inner ends of each of the slide rest bars longitudinally on the headstock, a cross-bar mountedl on them@ headstock for supporting the laterally extending ends of the sliderestbarsya' screw-shaftl journaled in the headstock having a threaded connection with the cross-bars adapted to adjust the cross-bar longitudinally on the headstock, a lead-.145 screw mounted on eachslide'rest bar, a slide-rest mounted on each slide rest bar having a threaded connection with the lead-screw, a cutting tool carried by each slide-resta star-wheel secured .to-each off the lead-screws, .and a tripper adaptedl to engage the star-wheel to rotate the lead-screws for feeding the slide-rests longitudinally on the slide rest bars during the rotation of the headstock.
24. In a machine for boring tapered surfaces, comprising a headstock having a hollow cylindrical outer end and a reduced cylindrical inner end, spaced flanges connecting the cylindrical ends of the headstock together, a web extending from the cylindrical outer end to a point near the center of the headstock for connecting the flanges together, a pair of oppositely inclined slide rest bars each having one end pivoted to the headstock between the flanges at an intermediate point and adapted to extend laterally and inwardly therefrom on each side of the headstock, and means for adjusting the slide rest bars whereby they may be folded into the body of the headstock.
25. A boring machine comprising a headstock, means for supporting the ends of the headstock, means for rotating the headstock, a pair of oppositely inclined slide rest bars each pivoted at one end to the heaclstocl: at an intermediate peint and extending laterally therefrom on opposite sides at an angle thereto, means for independently adjusting the pivoted ends oi the slide rest bars longitudinally of the headstock, means mounted on the headstock for supporting the laterally extending ends of the slide rest bars, a lead-screw journaled in bearings mounted in each slide rest bar, a slide-rest having a threaded engagement with each of the lead-screws, a cutting tool carried by each slide-rest, a star-wheel secured to each lead-screw, and a tripper for engaging the star-wheel to rotate the lead-- screws for feeding the slide-rests longitudinally on the slide rest bars during the rotation of the headstock.
26. A boring machine comprising a headstock, means for supporting the headstock, means for rotating the headstock, a pair of oppositely inclined slide rest bars each independently pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto, screw threaded rods for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, cutting tools carried by the slide rest bars, and an adjustable cross-bar for supporting the laterally extending ends of the slide rest bars.
27, A boring machine comprising a headstock, means for supporting the ends of the headstock on the work operated upon, means for rotating the headstock, a pair of oppositely inclined slide rest bars each pivoted at one end to the headstock at an intermediate point and extending laterally and inwardly therefrom at an angle thereto, means for adjusting the pivoted ends of the slide rest bars longitudinally of the headstock, a slide-rest mounted on each slide rest bar, a cutting tool carried by each of the sliderests, means for automatically feeding each sliderest longitudinally on the slide rest bars during the rotation of the headstock, a cross-bar secured to the headstock for supporting the laterally eX- tending ends of the slide rest bars, a screw-shaft threaded into the cross-bar and journaled in the headstoclc for adjusting the cross-bar on the headstock, and means for adjusting the laterally extending ends of the slide rest bars on the cross-bar.
REES C. MORGAN.
Mil
CERTIFICATE 0F CORRECTIN.
Patent No. 1,973,36. September 11, 1934.
REES C. MORGAN.
It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, line 68, claim 5, before "journaled" insert screw; and that the said Letters Patent should be read with this correction therein that the same may conform to the record ot the case in the Patent Office.
Signed and sealed this 30th day of October, A. D. 1934.
Les l ie Frazer (Seal) Acting Commissioner of Patents.
US570063A 1931-10-21 1931-10-21 Boring machine Expired - Lifetime US1973386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US570063A US1973386A (en) 1931-10-21 1931-10-21 Boring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US570063A US1973386A (en) 1931-10-21 1931-10-21 Boring machine

Publications (1)

Publication Number Publication Date
US1973386A true US1973386A (en) 1934-09-11

Family

ID=24278055

Family Applications (1)

Application Number Title Priority Date Filing Date
US570063A Expired - Lifetime US1973386A (en) 1931-10-21 1931-10-21 Boring machine

Country Status (1)

Country Link
US (1) US1973386A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452095A (en) * 1946-06-05 1948-10-26 Zim Mfg Company Cylinder ridge reamer
US2466473A (en) * 1946-05-03 1949-04-05 Hastings Mfg Co Ridge reamer for cylinders
US4652186A (en) * 1984-11-15 1987-03-24 Anatoly Sverdlin Portable boring machine
US4678379A (en) * 1986-03-26 1987-07-07 Westinghouse Electric Corp. Apparatus for machining a valve's seat
US5183365A (en) * 1988-11-25 1993-02-02 Silk Engineering (Derby) Limited Boring and surfacing machine
RU2760351C1 (en) * 2021-02-15 2021-11-24 Общество с ограниченной ответственностью НАУЧНО-ПРОИЗВОДСТВЕННОЕ ПРЕДПРИЯТИЕ "САРМАТ" Mobile boring machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466473A (en) * 1946-05-03 1949-04-05 Hastings Mfg Co Ridge reamer for cylinders
US2452095A (en) * 1946-06-05 1948-10-26 Zim Mfg Company Cylinder ridge reamer
US4652186A (en) * 1984-11-15 1987-03-24 Anatoly Sverdlin Portable boring machine
US4678379A (en) * 1986-03-26 1987-07-07 Westinghouse Electric Corp. Apparatus for machining a valve's seat
US5183365A (en) * 1988-11-25 1993-02-02 Silk Engineering (Derby) Limited Boring and surfacing machine
RU2760351C1 (en) * 2021-02-15 2021-11-24 Общество с ограниченной ответственностью НАУЧНО-ПРОИЗВОДСТВЕННОЕ ПРЕДПРИЯТИЕ "САРМАТ" Mobile boring machine

Similar Documents

Publication Publication Date Title
US1973386A (en) Boring machine
US699535A (en) Drilling-machine.
US596295A (en) Machine for removing packing from joints
US1504133A (en) Grooving attachment for lathes
US675834A (en) Screw-cutting machine.
US365850A (en) Drilling apparatus
US1482224A (en) Candle lathe
US2368476A (en) Reaming tool
US584001A (en) le blond
US705538A (en) Screw-cutting machine.
US811684A (en) Boring-machine.
US734051A (en) Boring-machine.
US572863A (en) carney
US235929A (en) Machine for machining axles
US1046496A (en) Adjustable taper-boring device.
US446792A (en) Hausser
US681294A (en) Disk cutting and boring machine.
US813530A (en) Apparatus for holding, turning, threading, and cutting pipes.
US390164A (en) Milling-machine
US680724A (en) Duplex centering-machine.
US482211A (en) Machine for milling plug-valves
US610330A (en) Cutting-off apparatus
US873727A (en) Bolt-machine.
US745414A (en) Milling and key-seat-cutting machine.
US998656A (en) Attachment for lathes.