US2085685A - Cross-feeding tool slide - Google Patents
Cross-feeding tool slide Download PDFInfo
- Publication number
- US2085685A US2085685A US51726A US5172635A US2085685A US 2085685 A US2085685 A US 2085685A US 51726 A US51726 A US 51726A US 5172635 A US5172635 A US 5172635A US 2085685 A US2085685 A US 2085685A
- Authority
- US
- United States
- Prior art keywords
- saddle
- movement
- slide
- tool
- tool slide
- 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
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
-
- 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
- B23Q2705/00—Driving working spindles or feeding members carrying tools or work
- B23Q2705/10—Feeding members carrying tools or work
- B23Q2705/102—Feeding members carrying tools or work for lathes
-
- 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
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5178—Attachment
-
- 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
- Y10T82/25—Lathe
- Y10T82/2531—Carriage feed
Definitions
- One of the objects of the present invention is .to provide means for driving a device such as a 2o to'ol slideto impart thereto a constant unidirec: tional movement or a succession of different movements thereto in each of a plurality of paths.
- Another object of the invention 8 to provide common means for successively moving a saddle 5 and a tool slide carried by the saddle through different paths and toprovide a dwell for such movement prior to the termination of the movements of the driving mechanism.
- Another object of the invention is to provide 30 saddle and cross-slide mechanisms particularly a designed for cooperation with and drive from a scre'wfeedshaft.
- a still further object of the invention is to provide -a structure including a cross-feeding" 35 mechanism automatically operable at a predetermined point in the feeding action and including a positivestop and a dwell operable at the termination of movement either of the saddle and slide-together or of the slide after the saddle 1470 comes to rest.
- Figure 1 is an elevation of a typical form of invention asseen from the frontwith partsof-z the mechanism broken away; a
- Figure 2 is a view of the form or the invention 5 shown in Figure 1 as seen from the side with parts thereof shown in sections, taken on the lines 2--! of Figure 1;
- FIG. 3 is a vertical sectional view of the constructio'n of l 'lgure 1 taken on the line 3-! between collar and cam.
- a screwfeed shaft is emp yed to (provide the drive and, threadedly engaged therewith, is. acollar. fixed 1 against rotation so as to move longitudinally of the screw uponrotation thereof.
- the collar is adapted to be or move a limited amount with respect to a tool slide saddle, the latching being releasable upon engagement of the saddle with a positive stop for limiting the downward movement thereof,
- the collar and its dependent structure is permanently engaged in a cam slide carried by the tool slide which, in turn, is mounted on the saddle, thus when the collar is released from the saddle and moves with respect thereto, the slide will be moved because of the engagement
- An-important feature of the invention in addition tothe latching and releasing means,-'the stop and the general structural features, is the configuration of "the cam path such that just 2r before the termination of the feeding action, the
- a column or base i! of' the machine E formed with suitable ways ll along which a carriage or saddle i6 is slidable.
- the outer face of the saddle is provided with similar ways I! which may bedisposed at any desired angle' vith respect to the saddle and which receive and guide a tool slide 40 or other element. 20 in the movement thereof with" respect to the saddle I6.
- the saddle ways 18 may be formed on a separate piece adjustably bolted to the saddle so as to vary the relation of movements between saddle and tool slide. 7
- Movement of thesaddle and slide is effected by vmeans of a feed screw 22 preferably extending lengthwise of he machine within the way II and engaged by internally threaded sleeve, or
- the tool slide 20 carried by the saddle is recessed on its inner face to receive a cam block 40 formed with a cam surface, or slot, 42 positioned to be engaged by a cam follower in the form of a cooperating roller 44 carried by the operating member 26 for movingthe tool slide with reference to the saddle along the ways I 8.
- cam block shown is circular in form and secured to the tool slide in predetermined position by retaining screws 46, adjustment of which may be had to vary the relative movement of slide with respect to'operator.
- the shape of the cam surface 42 and the position thereof with respect to the path of movement of the roller 44 on operating member 26 determines the character, amount, and speed of movement of the tool slide with respect to the saddle while the direction of movement of the slide is determined by the angular relation of the ways IS on the saddle along which the tool slide is moved.
- the surface 42 of the cam block may be straight throughout the great-. er 'part thereof with the lower end 50 curved to provide a dwell" in the movement of the slide at the end of its stroke.
- the camsurface may be given any other suitable form or shape to vary the character or speed of movement of the tool slide or device with respect to the saddle or a work piece. It willalso be evident that the tool slide or device may be caused to move either to the right or to the left from the central position shown in Figure 1 by positioning the cam block so that the cam' surface 42 thereof is suitably inclined with respect to the path of movement of the roller 44.
- ways II and cam block 40 can be suitably formed or adjusted to vary the direction and character, of movement of the tool slide with respect to the saddle so as to perform any desired machining or other operation and these movements may be v made to conform to requirements in any particular installation toobtain the best results therein.
- the slidable bolt/34' is caused tomove to the left, as n in Figure 2, upon completion of the downwa movement of the saddle.
- the bolt is carried'by the saddle and normally held against movement by asp'ring pressedlatch 52 which, when in projected position, engages a recess in the bolt 34.
- the bolt is also provided with a slot 54 on the rear side, as seen in Figure 2, into which the lower end or foot 56 of the operating member 2i; extends, the slot and foot being provided with cooperating inclined surfaces 53 serving upon movement of the operating member with respect to the saddle to force the bolt 34 to the left.
- the upper surface of block 64 is accurately lo- 5 cated in adjusted position to engage a projecting pin carried by the saddle is when the saddle has completed its downward movement,
- the pin is urged outward by the action of spring 12 acting through a. pivoted member 14 carried by the 10 saddle and positioned with one end thereof in a recess 16 in latch 52 and with the opposite end engaging the head of pin 10.
- the member l5 I4 is rocked about its pivot causing the latch 52 to be retracted and the bolt 34 released for movement to the left as seen in Figure 2.
- the operating member 26 then continues its movement downward while the movement of the saddle 20 is arrested.
- the foot 56 of the operating member therefor moves into the cam slot 54 and the cam surfaces 58 on the foot and-bolt 34 cooperate to move the bolt so that it projects into a recess l5 in the upper portion of the tripping device-60 preventing upward movement of the saddle when the direction of rotation of the feed screw is reversed and before the tool slide has returned to the central or normal position shown in Figure 1.
- the operating member 26 when released from the saddle moves downward causing the roller 44 to engage the cam surface 42 on the cam block and actuate the tool slide.
- the slide is thus moved with reference to the saddle through a new 35 path while the saddle remains in fixed position.
- the slide continues to move under the action of the operating member as controlled by the cam elements until the dwell terminus of the cam path is reached. Thereafter a small amount of 40.
- the stop screws 48 in the saddle also act to positively limit thecross-movement of Upon completion of operating movement of the tool slide and reversal of the feed screw for the traverse movement of the mechanism in the normal operation thereofythe operating member 26 is raised causing the roller. to engage the 50 upper surface 11 of the slot 42 so that the slide is moved back to the central position shown in Figure 1.
- the foot 56 of the-operating member also moves up through the cam "slot 54 bringing the inclined surface 18 thereof into engagement 55 with a similarly inclined surface on the bolt 34 forcing the bolt back'to the right until the recess therein isin position to be'engaged by the latch 52.
- a tripping device adjustably posi-- tioned in the pathflof movement of the saddle and engageablethereby for disconnecting said 'm'eans-from said saddle upon' completion of a predetermined movement of the saddle and oo- 50 operating cam elements on said means and tool slide for moving said tool slide with reference.
- a tool moving mechanism for machine tools, a tool holding slide, a reciprocal actuating member therefor, and a cam connection between said actuating member. and said slide including a cam path a portion ofwhich is arranged to permit free movement of said actuating member with respect to said slide to eii'ect a dwell in the movement of the slide with respect to the actuating member.
- a tool holding slide a reciprocal-actuating member, a cam folloiwen' connection between said actuatingmember and said slide including a cam path adapted to move the slide at an angle with respect to the movement of the actuator and including a terminal portion in line with the movement of the actuator sov that said actuator may move without movement of the. slide at the end of the tool feeding stroke.
- atoolcarrying slide including a cam path
- a reciprocal actuator having a follower within said path, screw means for reciprocating said actuator in response to the iotation of a feed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Description
June 29, 1937. F. H. MUSSLER 2,085,685
CROSS-FEEDING TOOL SLI'DE Filed Nov. 27, 1935 5 Sheets-Sheet 1- I 7: I /6 l l I I 5 1 5 i I 4Z6,
' INVENTOR. FRA/vkH. MUSSLER 3 Sheets-Sheet 2 i ll w z a M F. H. MUSSLER I CROSS-FEEDING TOOL SLIDE Filed Nov. 27, 1935 122. IF: mu
Junezs, 1937.
Patented June '29, 1937 UNITED (STATES,
PATENT m cs anamomoss-rsenmo 'roor. suns Frank 11. um, Stratford, m, m to Ballard The necticnt C mpan a corporation at on- Application um :7, 1m, Serial No. sum
-11 Claims. in. se -21) This invention relates to cross-feeding tool the patent to E. P. Bullard Jr., No. 1,382,339, i
dated June 21, 1921. However, the invention may also be used in othen relations and combinations and may be embodied in other types of machine tools or mechanism as necessary or desirable to carry out any of a great variety of operations. One of the objects of the present invention is .to provide means for driving a device such as a 2o to'ol slideto impart thereto a constant unidirec: tional movement or a succession of different movements thereto in each of a plurality of paths. Another object of the invention 8 to provide common means for successively moving a saddle 5 and a tool slide carried by the saddle through different paths and toprovide a dwell for such movement prior to the termination of the movements of the driving mechanism. I
Another object of the invention is to provide 30 saddle and cross-slide mechanisms particularly a designed for cooperation with and drive from a scre'wfeedshaft. l
A still further object of the invention is to provide -a structure including a cross-feeding" 35 mechanism automatically operable at a predetermined point in the feeding action and including a positivestop and a dwell operable at the termination of movement either of the saddle and slide-together or of the slide after the saddle 1470 comes to rest.
These. and other objects and features or m present invention ,will appear from the. following description of a typical embodiment-thereofjin which reference is made to the 45 figures of the drawings, wherein: Figure 1 is an elevation of a typical form of invention asseen from the frontwith partsof-z the mechanism broken away; a
Figure 2 is a view of the form or the invention 5 shown in Figure 1 as seen from the side with parts thereof shown in sections, taken on the lines 2--! of Figure 1;
- Figure 3 is a vertical sectional view of the constructio'n of l 'lgure 1 taken on the line 3-! between collar and cam.
- collar, 24 adjus ame-4 is a pla n view of the construction-0f Figurehand'fl'q Figure 5 is "a orizontal sectional view of-the form of, th invention shown in Figure 1 taken onthe'line thereof." 5
In the co tion illustrated, a screwfeed shaft is emp yed to (provide the drive and, threadedly engaged therewith, is. acollar. fixed 1 against rotation so as to move longitudinally of the screw uponrotation thereof. The collar is adapted to be or move a limited amount with respect to a tool slide saddle, the latching being releasable upon engagement of the saddle with a positive stop for limiting the downward movement thereof, The collar and its dependent structure is permanently engaged in a cam slide carried by the tool slide which, in turn, is mounted on the saddle, thus when the collar is released from the saddle and moves with respect thereto, the slide will be moved because of the engagement An-important feature of the invention, in addition tothe latching and releasing means,-'the stop and the general structural features, is the configuration of "the cam path such that just 2r before the termination of the feeding action, the
' slide will come to rest, thus providing a dwell, so that in a mechanism where tool feed and work spindle rotation are inter-dependent the tool may come to rest prior to the stopping of the spindle thus providing for one or more rotations of the workunder the toot after the toolhas finished feeding but prior to its retraction.
; Referring to the figures of the drawings, a column or base i! of' the machine E formed with suitable ways ll along which a carriage or saddle i6 is slidable. The outer face of the saddle is provided with similar ways I! which may bedisposed at any desired angle' vith respect to the saddle and which receive and guide a tool slide 40 or other element. 20 in the movement thereof with" respect to the saddle I6. Asshown in the earlier patent, the saddle ways 18 may be formed on a separate piece adjustably bolted to the saddle so as to vary the relation of movements between saddle and tool slide. 7
Movement of thesaddle and slide is effected by vmeans of a feed screw 22 preferably extending lengthwise of he machine within the way II and engaged by internally threaded sleeve, or
tably secured to an operating member 28 slida le within a; channel 28 in the frontface of th saddle. The position of the sleeve with respectto the operating member may be varied by adjustment of' a screw ill, while "ment of the saddle has been interrupted.
The tool slide 20 carried by the saddle is recessed on its inner face to receive a cam block 40 formed with a cam surface, or slot, 42 positioned to be engaged by a cam follower in the form of a cooperating roller 44 carried by the operating member 26 for movingthe tool slide with reference to the saddle along the ways I 8.
The cam block shown is circular in form and secured to the tool slide in predetermined position by retaining screws 46, adjustment of which may be had to vary the relative movement of slide with respect to'operator.
The shape of the cam surface 42 and the position thereof with respect to the path of movement of the roller 44 on operating member 26 determines the character, amount, and speed of movement of the tool slide with respect to the saddle while the direction of movement of the slide is determined by the angular relation of the ways IS on the saddle along which the tool slide is moved. As shown, the surface 42 of the cam block may be straight throughout the great-. er 'part thereof with the lower end 50 curved to provide a dwell" in the movement of the slide at the end of its stroke. However, the camsurface may be given any other suitable form or shape to vary the character or speed of movement of the tool slide or device with respect to the saddle or a work piece. It willalso be evident that the tool slide or device may be caused to move either to the right or to the left from the central position shown in Figure 1 by positioning the cam block so that the cam' surface 42 thereof is suitably inclined with respect to the path of movement of the roller 44.
With the elements formed and arranged as described, it will be evident that the ways II and cam block 40 can be suitably formed or adjusted to vary the direction and character, of movement of the tool slide with respect to the saddle so as to perform any desired machining or other operation and these movements may be v made to conform to requirements in any particular installation toobtain the best results therein.
In order to release the operating member 26 for movement relative to the saddle so that the tool slide may be giventhe movement described,
the slidable bolt/34' is caused tomove to the left, as n in Figure 2, upon completion of the downwa movement of the saddle. The bolt is carried'by the saddle and normally held against movement by asp'ring pressedlatch 52 which, when in projected position, engages a recess in the bolt 34. The bolt is also provided with a slot 54 on the rear side, as seen in Figure 2, into which the lower end or foot 56 of the operating member 2i; extends, the slot and foot being provided with cooperating inclined surfaces 53 serving upon movement of the operating member with respect to the saddle to force the bolt 34 to the left.
Release of the operating member to actuate the tool slide is effected upon completion of a predetermined movement of the saddle by means of an adjustable tripping device located below .the saddle and in position to positively arrest movement thereof. The tripping device is adjustthe slide.
with the operating member.
ably held between the vertical ways l4 on the column, or base, of the machine by bolts 62 extending through a block- 64 and secured to a retaining member 66 in a recess 68.
The upper surface of block 64 is accurately lo- 5 cated in adjusted position to engage a projecting pin carried by the saddle is when the saddle has completed its downward movement, The pin is urged outward by the action of spring 12 acting through a. pivoted member 14 carried by the 10 saddle and positioned with one end thereof in a recess 16 in latch 52 and with the opposite end engaging the head of pin 10. When the pin is depressed or forced inwardly by engagement with the block 64 of the tripping device, the member l5 I4 is rocked about its pivot causing the latch 52 to be retracted and the bolt 34 released for movement to the left as seen in Figure 2. The operating member 26 then continues its movement downward while the movement of the saddle 20 is arrested. The foot 56 of the operating member therefor moves into the cam slot 54 and the cam surfaces 58 on the foot and-bolt 34 cooperate to move the bolt so that it projects into a recess l5 in the upper portion of the tripping device-60 preventing upward movement of the saddle when the direction of rotation of the feed screw is reversed and before the tool slide has returned to the central or normal position shown in Figure 1.
The operating member 26 when released from the saddle moves downward causing the roller 44 to engage the cam surface 42 on the cam block and actuate the tool slide. The slide is thus moved with reference to the saddle through a new 35 path while the saddle remains in fixed position. The slide continues to move under the action of the operating member as controlled by the cam elements until the dwell terminus of the cam path is reached. Thereafter a small amount of 40.
rotation of the screw, independent of movement of the slide, is permitted to constitute the dwell referred to. The stop screws 48 in the saddle also act to positively limit thecross-movement of Upon completion of operating movement of the tool slide and reversal of the feed screw for the traverse movement of the mechanism in the normal operation thereofythe operating member 26 is raised causing the roller. to engage the 50 upper surface 11 of the slot 42 so that the slide is moved back to the central position shown in Figure 1. The foot 56 of the-operating member also moves up through the cam "slot 54 bringing the inclined surface 18 thereof into engagement 55 with a similarly inclined surface on the bolt 34 forcing the bolt back'to the right until the recess therein isin position to be'engaged by the latch 52. At the same time the bolt is withdrawn from the recess 15 in the tripping device releasing the saddle for upward movement As the saddle rises. with said member on continued operation of the feed screw the pin 10 is again projected and the latch 52 moved into engagement with the bolt 34 so that the saddle and operating member are secured together for movement to a raised position.
From the foregoing description of the construction and operation of the mechanism illustrated in thedrawings it will be evident that the same operating member and drive meahs are used to. move the saddle and the tool slide indifferent paths and that these movementstake place successively and in predetermined timed relation which is variable to adapt the mechanism for a I wide range of operations and uses." Furthermore, the character and amount of movement of the tool slide or other element actuated by mecha- 25 nism embodying the presentinvention are variand in the relation thereof to the mechanism 15 with which it is used without departing from the spirit andscope of the invention.
Having set forth the nature of my invention,
what I claim is: 7
1. In combination with a machine tool havsaddle.
2. In combination with a machine tool having a base, a saddle mounted'for movement on said base, a tool slide mounted for movement onable by said feed screw for imparting movement to said saddle. a tripping device adjustably posi-- tioned in the pathflof movement of the saddle and engageablethereby for disconnecting said 'm'eans-from said saddle upon' completion of a predetermined movement of the saddle and oo- 50 operating cam elements on said means and tool slide for moving said tool slide with reference.
said saddle. j
4. In combination with a machine tool having ways for guiding a saddle, a saddle movable along said ways, a tool slide carried by said saddle and movable thereon, an operating member releasably connected to said saddle for movlng the same, a feed screw engaging the operating member to actuate the same, cooperating elements 5 carried bythe. operating member and tool slide for moving the tool slide with reference tothe saddle and a trip device for releasing said operating member for movement relative-to the saddle to actuate said slide. 1
described is intended use illustrative of a typical ing a base, a saddle mounted for movement on I 'of'the rotation of said 55 5. In combinationv with a machine tool hav- 1 ing a base, a saddle mounted for movement on said base, a tool slide mounted for movement on said saddle, means for moving said saddle, a cam element actuated by said means and a cooperating element movable with said tool slide, actuated by said cam element to move said tool slide with respect to said saddle, said elements being relatively movable to alter the character of movement imparted to said tool slide.
6. In combination with a machine 'tool having a base, a saddle mounted formovement on said base. a tool slide mounted for movement on said saddle, means for moving said saddle, a cam element actuated by said means and a cooperating element adiustably mounted on said tool slide and presenting a surface positioned to be engaged by said cam element to move said tool slide with respect to said saddle.
7. In combination with a machine tool, a tool slide, operating means for moving said tool slide, a rotatable feedscrew for actuating said means and cooperating cam elements connected to said tool slide and operating means, said elements being formed to move the tool slide at varying speeds under constant rotation of said feed screw.
8. In combination .with a machine tool, a tool slide, operating means for moving said tool slide engaging a rotatable feed screw and movable longitudinally thereof and cooperating cam elements carried by said tool slide and operating means including a roller and a cam surface over which the roller is movable presenting portions located at different angles to the path of movement of the operating member to vary the speed of movement of the tool slide.
9. In a tool moving mechanism for machine tools, a tool holding slide, a reciprocal actuating member therefor, and a cam connection between said actuating member. and said slide including a cam path a portion ofwhich is arranged to permit free movement of said actuating member with respect to said slide to eii'ect a dwell in the movement of the slide with respect to the actuating member.
10. In a-tool moving mechanism for machine 7 tools, a tool holding slide, a reciprocal-actuating member, a cam folloiwen' connection between said actuatingmember and said slide including a cam path adapted to move the slide at an angle with respect to the movement of the actuator and including a terminal portion in line with the movement of the actuator sov that said actuator may move without movement of the. slide at the end of the tool feeding stroke.
11. In a tool moving mechanian for machine tools, atoolcarrying slide, including a cam path,
a reciprocal actuator having a follower within said path, screw means for reciprocating said actuator in response to the iotation of a feed
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51726A US2085685A (en) | 1935-11-27 | 1935-11-27 | Cross-feeding tool slide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51726A US2085685A (en) | 1935-11-27 | 1935-11-27 | Cross-feeding tool slide |
Publications (1)
Publication Number | Publication Date |
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US2085685A true US2085685A (en) | 1937-06-29 |
Family
ID=21973010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US51726A Expired - Lifetime US2085685A (en) | 1935-11-27 | 1935-11-27 | Cross-feeding tool slide |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441533A (en) * | 1941-05-20 | 1948-05-11 | New Britain Machine Co | Tool |
US2658501A (en) * | 1952-02-12 | 1953-11-10 | Hoglund Nils | Grinding wheel dressing apparatus |
-
1935
- 1935-11-27 US US51726A patent/US2085685A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441533A (en) * | 1941-05-20 | 1948-05-11 | New Britain Machine Co | Tool |
US2658501A (en) * | 1952-02-12 | 1953-11-10 | Hoglund Nils | Grinding wheel dressing apparatus |
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