US1350004A - Journal adjustment for arms of multiple-spindle drills - Google Patents
Journal adjustment for arms of multiple-spindle drills Download PDFInfo
- Publication number
- US1350004A US1350004A US327105A US32710519A US1350004A US 1350004 A US1350004 A US 1350004A US 327105 A US327105 A US 327105A US 32710519 A US32710519 A US 32710519A US 1350004 A US1350004 A US 1350004A
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- US
- United States
- Prior art keywords
- rod
- arm
- journal
- stud
- journal member
- 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
Links
- 238000010276 construction Methods 0.000 description 13
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/28—Means for securing sliding members in any desired position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
-
- 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
- Y10T408/36—Machine including plural tools
- Y10T408/38—Plural, simultaneously operational tools
- Y10T408/3811—Plural, simultaneously operational tools with provision for adjustment of relationship of axes
-
- 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
- Y10T408/91—Machine frame
Definitions
- This invention relates to adjustments of the drill spindle carrying journals adjust ably connected at the ends of arms in multiple spindle drills. It is a primary object and purpose of my invention to provide a simple yet efficient construction for readily loosening or tightening a drill spindle journal with respect to the arm on which it is mounted. Arms of this character carrying journals usually require that the journal be connected to the arm at two spaced apart points, one above the other, the upper connection being hard to reach and almost inaccessible after the arm is attached to the supporting member of a drilling machine. The lower means of connection is readily accessible and my invention is directed to a novel means for loosening or tightening the drill spindle journal against the arm through the operation only of the lower freely accessible connecting means used in attaching said journal to the arm.
- Figure 1 is a partial planview and section, the section being taken substantially on the line 1--1 of Fig. 2, of an arm equipped with my invention.
- Fig. 2 is a longitudinal section taken through the arm and attached journal member, the means of connection being shown in side elevation.
- Fig. 3 is a fragmentary section taken substantially on the line 33 of Fig. 2.
- Fig. l is a view similar to Fig. but showing the parts in different relation to illustrate the method of assembly.
- Fig. 5 is a partial plan view and section similar to Fig. 1, the section being taken substantially on the line 55 of Fig 6;
- Fig. 6 is a longitudinal section similar to Fig. 2, illustrating a slightly different means Specification of Letters Patent.
- Fig. 7 is a partial plan section of a further modification, the section being taken on line 77, Fig. 8.
- Fig. 8 is a longitudinal section of-the modification shown in Fig. 7 taken through the arm and attached journal member.
- Fig. 9 is a partial plan section of still a further modification.
- Fig. 10 is a longitudinal section of the modification shown in Fig. 9, the attaching means being shown in elevation.
- the arm 1 may be of any suitable form of construction, a journal carrying member 2 being located at one end thereof and formed with a journal 3 in which a vertical spindle t is rotatably mounted, the lower end thereof being equipped with any suitable drill holding socket 5.
- the end of the arm 1 has a wide and shallow slot 6 therein, preferably, and the journal member 2 is formed with a suitable projecting tongue 7 to fit this slot 6 and hold the journal member against any tendency to move sidewise or twist with respect to the arm.
- a vertical opening 8 is bored downwardly through the member 2 back of the spindle 4.- inte which a cylindrical rod 9 may be entered from above.
- rod 9 At its upper end rod 9 is machined to leave a sector projection 14) which is located at one side of the axis of the rod.
- the other end has a similar sector projection 11 but is located at the opposite side of the axis of the rod.
- a stud 12 passes through a vertical slot 13 formed in the end of the rod 1 and into a horizontal opening bored into the upper part of the journal member 2, this opening traversing the vertical opening 8.
- the end of the stud within the journal member is enlarged, has a transverse slot 14: cut therein on its under side but leaving a downwardly extending projection or hook 15 which comes against side of the projection 10 of the pin 9.
- Suitable securing and locking nuts 16 are threaded onto the end of the stud 12 which passes through the arm, a washer 17 being located between one of the nuts and the adjacent portion of the arm as shown.
- the formation of the sector projection 10 is such that on tightening the nuts there is a tendency to turn the pin 9 (referring to Fig 1) in a counter-clockwise direction.
- a second and lower stud 18 passes through a lower vertical slot 13 made in a downward eXtension 1 to the end of the arm 1 and is located in a second horizontal opening bored into the journal member 2 so as to meet the lower end of the vertical opening 8.
- This stud 18 is similar to stud 12 except'that the slot 19 is cut in its upper side to receive the lower sector projection 11 of the pin 9 and has a hook 20 to bear against a side or said projection 11 as shown.
- the stud 18 receives a nut 21 and a washer 22 is interposed be tween the nut and the adjacent. portion of the arm. 1. Tightening this nut has a tendency to draw the stud and turn the pin 9 in a clockwise direction or opposite to the movement which is imparted by tightening the nuts on the stud 12.
- the hook portion at 21) is of slightly different form than that at 15 for the upper stud so as to. permit the assembly otthe parts.
- the rod 5) is placed in the opening 8 and allowed to drop to the bottom thereof after which the stud 12 is inserted and the journal meml er inverted whereupon the pin 9 drops back so that its sector projection 10 enters the slot 14-.
- the stud 18 is turned to the position shown in Fig. 1 and inserted into the journal member after which it is turned through a quarter of a circumference to its operative position shown in Fig. This permits a quick and ready assembly of parts of the device used to bind the journal member against the arm.
- Figs. 5 and 6 a modification in structureis shown.
- the rod 9 is modified in that the projections 10 and 11 do not appear but each end of the rod has a plurality of pinion teeth 23 cut around it, while the studs 12 and 18 are each formed with an off-set rack 24 to engage the pinions thus made, the racks of the two studs engaging with the pinions opposite sides of the rod 9
- the effect so far as turning the rod 9 is concerned and simultaneously tightening or loosening both studs with the operation of the nut 21 only on the lower stud is the same as in the construction previously described.
- the rods 9, 9 and 9 have been shown as carried by the ournal member 2. It is quite as feasible and practical to place the same on the arm as shown in I igs. 9 and 1 in opening to receive the rod 9" is made i the end otthe arm 1. which in this case does not have the slots 18 and 13" therein. T he projections 10 and 11 at the upper and lower ends of the rod are similar to projectioi 1i! and 11 of the first construction, being versed in position on the rod.
- T he studs have heads 27 which are received in a Ts M; 28 made vertically in the jour ial meinliaer A bushing 29 is placed around each stud to bear against the projections 10" and 1 the nuts 16 and 21 hearing against the o osite ends of the bushings.
- the operatioi'i the same and the offer thereof is the same with the other construction described so tar as tightening and loosening the journal. member for adjustment is concerned.
- Connecting means for attaching a drill spindle journal member to the end of an arm comprising a rod loosely mounted within the journal member, means located at each end oi the rod and passing through and engaging with the end of the arm, interengaging means between each of said first mentioned means and the ems of the rods for turning the rod about its longitudinal axis on movement of either of said means, said turning movements imparted to the rod being opposite with the two means, substantially as described.
- an arm a drill spindle journal member located against one end. of the arm, a rod adapted to turn about a vertical axis mounted on the journal member, and means connected with each end of the rod for securing the journal member to the arm, each of said means being movable lengthwise and operable to turn the rod about its vertical axis, and said means at one end of the rod turning the rod in a direction opposite to that imparted by the means at the other end of the rod, substantially as and for the purposes described.
- an arm a drill spindle journal member located against t io end of the arm, upper and lower studs located partly in the journal member and extending therefrom and through slots in the end of the arm, nuts threaded unto the ends of the studs, a rod disposed between the opposite ends of the stuns, and means connecting the ends of the rod with said upper and lower studs whereby tightening the nut on one oi"- the studs, thereby moving it longitudinally, serves to rotate the rod and draw the other stud in the opposite direction so as to bind the nuts carried thereby against the arm simultaneously and with equal force, substantially as and for the purposes (lGSClliJQt.
- journal member having a vertical opening therein, a rod located loosely in said vertical opening and provided at each end with a sector-shaped projection, said projections at opposite ends of the rod being located at opposite sides of the axis of the rod, two studs provided with hooked ends located in horizontal openings made in the journal member one at each end of said rod, said hoe rod ends engaging with the projections on the rod and said studs passing through vertical slots in the end of the arm, and nuts threaded unto the ends of the studs back of said end of the arm, substantially as and for the purposes described.
- an arm a drill spindle journal member located against one end of the arm, a rod mounted in the journal member and adapted to turn about its longitudinal axis, two separate means connected with the rod and adapted to detachably and adjustably connect the journal member to the end of the arm, and interengagin g means between each of said two means and the rod for tightening or loosening one of said means simultaneously with the tightening or loosening of the other operable through a turning of the rod about its longitudinal axis, substantially as and for the purposes described.
- an arm a drill spindle journal member located against one end of the arm, a rod loosely mounted on one of said members and adapted to turn about an axis parallel with the length of the rod, and means associated with each end of the rod for connecting the arm and journal member together, each 01": said means being movable lengthwise and operatively connected with the rod so as to turn the rod about said axis, one of said means acting to turn the rod in one direction and the other in the opposite direction, substantially as and for the purposes set forth.
- an arm a drill spindle ournal member located against one end of the arm, a rod loosely mounted on one of said members and positioned vertically thereon and adapted to turn about a vertical axis parallel with the length of the rod, and upper and lower means for connecting the arm and journal member together, each of said means having operative connections with the rod adjacent its upper and lower ends, said means each being movable longitudinally and operating to turn the rod about said axis, one of said means acting to turn the rod in one di ection and the other in the opposite direction, substantially as and for the purposes described.
Description
. E, w. CLEVELAND JOURNAL ADJUSTMENT FOR ARMS 0F MULTIPLE SPINULE 0 RI L LS Patented Aug. 17, 1920.
APPLICATION FILED SEPT. 29, 1919.
2 SHEETS-SHEET l.
i W J W n 6 W 66 fi a .01 W3 5 w 1 W M 1m IL a W u m p 11 W n n L I L rl u n L 7 4 5 FM/ 3 l'fmw a 4 k 71L. fl N w 0 a w 2 m. 5 7/491 w m m w i LTD/0 i: 8 A I n 9 I IL I/ Q0 2 F finw 4w 1 5 1 w L L I l L L L ll //////W////// L J PATENT OFFICE.
EDGAR W. CLEVELAND, OH HOLLAND, MICHIGAN.
JOURNAL ADJUSTMENT FOR ARMS MULTIPLE-SPINDLE DRILLS.
Application filed September 29,-1919.
To all whom it may concern Be it known that I, EDGAR TV. CLEVELAND, a citizen of the United States of America, residing at Holland, in the county of Ottawa and State of Michigan, have invented certain new and useful Improve-- ments in Journal Adjustments for Arms of Multiple-Spindle Drills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to adjustments of the drill spindle carrying journals adjust ably connected at the ends of arms in multiple spindle drills. It is a primary object and purpose of my invention to provide a simple yet efficient construction for readily loosening or tightening a drill spindle journal with respect to the arm on which it is mounted. Arms of this character carrying journals usually require that the journal be connected to the arm at two spaced apart points, one above the other, the upper connection being hard to reach and almost inaccessible after the arm is attached to the supporting member of a drilling machine. The lower means of connection is readily accessible and my invention is directed to a novel means for loosening or tightening the drill spindle journal against the arm through the operation only of the lower freely accessible connecting means used in attaching said journal to the arm.
The construction which I have used to embody the invention is shown in the accompanying drawings, in which:
Figure 1 is a partial planview and section, the section being taken substantially on the line 1--1 of Fig. 2, of an arm equipped with my invention.
Fig. 2 is a longitudinal section taken through the arm and attached journal member, the means of connection being shown in side elevation.
Fig. 3 is a fragmentary section taken substantially on the line 33 of Fig. 2.
Fig. l is a view similar to Fig. but showing the parts in different relation to illustrate the method of assembly.
Fig. 5 is a partial plan view and section similar to Fig. 1, the section being taken substantially on the line 55 of Fig 6; and
Fig. 6 is a longitudinal section similar to Fig. 2, illustrating a slightly different means Specification of Letters Patent.
Patented Aug. 17, 1920.
Serial No. 327,105.
of connecting the journal to the arm, both constructions, however, working on the same principle.
Fig. 7 is a partial plan section of a further modification, the section being taken on line 77, Fig. 8.
Fig. 8 is a longitudinal section of-the modification shown in Fig. 7 taken through the arm and attached journal member.
Fig. 9 is a partial plan section of still a further modification.
Fig. 10 is a longitudinal section of the modification shown in Fig. 9, the attaching means being shown in elevation.
Like reference characters refer to like parts in the different views of the drawing.
The arm 1 may be of any suitable form of construction, a journal carrying member 2 being located at one end thereof and formed with a journal 3 in which a vertical spindle t is rotatably mounted, the lower end thereof being equipped with any suitable drill holding socket 5. The end of the arm 1 has a wide and shallow slot 6 therein, preferably, and the journal member 2 is formed with a suitable projecting tongue 7 to fit this slot 6 and hold the journal member against any tendency to move sidewise or twist with respect to the arm.
A vertical opening 8 is bored downwardly through the member 2 back of the spindle 4.- inte which a cylindrical rod 9 may be entered from above. At its upper end rod 9 is machined to leave a sector projection 14) which is located at one side of the axis of the rod. The other end has a similar sector projection 11 but is located at the opposite side of the axis of the rod. A stud 12 passes through a vertical slot 13 formed in the end of the rod 1 and into a horizontal opening bored into the upper part of the journal member 2, this opening traversing the vertical opening 8. The end of the stud within the journal member is enlarged, has a transverse slot 14: cut therein on its under side but leaving a downwardly extending projection or hook 15 which comes against side of the projection 10 of the pin 9. Suitable securing and locking nuts 16 are threaded onto the end of the stud 12 which passes through the arm, a washer 17 being located between one of the nuts and the adjacent portion of the arm as shown. The formation of the sector projection 10 is such that on tightening the nuts there is a tendency to turn the pin 9 (referring to Fig 1) in a counter-clockwise direction.
A second and lower stud 18 passes through a lower vertical slot 13 made in a downward eXtension 1 to the end of the arm 1 and is located in a second horizontal opening bored into the journal member 2 so as to meet the lower end of the vertical opening 8. This stud 18 is similar to stud 12 except'that the slot 19 is cut in its upper side to receive the lower sector projection 11 of the pin 9 and has a hook 20 to bear against a side or said projection 11 as shown. At its free end the stud 18 receives a nut 21 and a washer 22 is interposed be tween the nut and the adjacent. portion of the arm. 1. Tightening this nut has a tendency to draw the stud and turn the pin 9 in a clockwise direction or opposite to the movement which is imparted by tightening the nuts on the stud 12.
It is evident that on tightening the nut 21 and thus giving a clockwise direction of turning movement to the rod 9, there is a tendency to draw the stud 12 into the journal member so that if nut 21 alone is tightened so as to bind the lower portion of the journal. member against the arm the effect is to simultaneously draw the upper portion 01 the ournal member against. the arm with equal force. Similarly loosening the nut 21 will free the lower portion of the journal member and simultaneously tree the upper portionthereof. lVhen thus freed the journal member may be moved to dil'li'erent positions with respect to the arm within the limitations prescribed by the length of slots 13 and 18.
The hook portion at 21) is of slightly different form than that at 15 for the upper stud so as to. permit the assembly otthe parts. In assembling, the rod 5) is placed in the opening 8 and allowed to drop to the bottom thereof after which the stud 12 is inserted and the journal meml er inverted whereupon the pin 9 drops back so that its sector projection 10 enters the slot 14-. The stud 18 is turned to the position shown in Fig. 1 and inserted into the journal member after which it is turned through a quarter of a circumference to its operative position shown in Fig. This permits a quick and ready assembly of parts of the device used to bind the journal member against the arm.
In Figs. 5 and 6 a modification in structureis shown. The rod 9 is modified in that the projections 10 and 11 do not appear but each end of the rod has a plurality of pinion teeth 23 cut around it, while the studs 12 and 18 are each formed with an off-set rack 24 to engage the pinions thus made, the racks of the two studs engaging with the pinions opposite sides of the rod 9 The effect, so far as turning the rod 9 is concerned and simultaneously tightening or loosening both studs with the operation of the nut 21 only on the lower stud is the same as in the construction previously described.
In Figs. 7 and 8, a still further modification is shown.- The vertical opening 8 in" posite apexes of the triangle so that when either stud is tightened or loosened the el tect is to tighten or loosen the other stud simultaneously and in an equal amount.
In the constructions previously described, the rods 9, 9 and 9 have been shown as carried by the ournal member 2. It is quite as feasible and practical to place the same on the arm as shown in I igs. 9 and 1 in opening to receive the rod 9" is made i the end otthe arm 1. which in this case does not have the slots 18 and 13" therein. T he projections 10 and 11 at the upper and lower ends of the rod are similar to projectioi 1i! and 11 of the first construction, being versed in position on the rod. T he studs have heads 27 which are received in a Ts M; 28 made vertically in the jour ial meinliaer A bushing 29 is placed around each stud to bear against the projections 10" and 1 the nuts 16 and 21 hearing against the o osite ends of the bushings. The operatioi'i the same and the offer thereof is the same with the other construction described so tar as tightening and loosening the journal. member for adjustment is concerned.
Various other differently constructed embodiments of my invention will occur to others skilled in the art and I, accordingly, consider that my invention compr' s all modifications of structure falling within the scope of the appended claims which (itfiliti the invention and is not limited to the speand nuts on the free ends of the studs for binding the journal member to the arm, substantially as and for the purposes described.
2. Connecting means for attaching a drill spindle journal member to the end of an arm, comprising a rod loosely mounted within the journal member, means located at each end oi the rod and passing through and engaging with the end of the arm, interengaging means between each of said first mentioned means and the ems of the rods for turning the rod about its longitudinal axis on movement of either of said means, said turning movements imparted to the rod being opposite with the two means, substantially as described.
8. In a construction of the character de scribed, an arm, a drill spindle journal member located against one end. of the arm, a rod adapted to turn about a vertical axis mounted on the journal member, and means connected with each end of the rod for securing the journal member to the arm, each of said means being movable lengthwise and operable to turn the rod about its vertical axis, and said means at one end of the rod turning the rod in a direction opposite to that imparted by the means at the other end of the rod, substantially as and for the purposes described.
4.111 a construction of the character described, an arm, a drill spindle journal member located against the one end of the arm, a rod mounted loosely on the arm and adapted to turn about its longitudinal axis, a stud located at each end of therod, said studs passing through the end of the arm and receiving nuts, and means connecting each stud with the adjacent end of the rod whereby movement of either stud longitudinally will turn the rod about its axis and move the other stud longitudinally but in a direction opposite to themovement oi the first stud, substantially as described.
5. In a device of the character described, an arm, a drill spindle journal member located against t io end of the arm, upper and lower studs located partly in the journal member and extending therefrom and through slots in the end of the arm, nuts threaded unto the ends of the studs, a rod disposed between the opposite ends of the stuns, and means connecting the ends of the rod with said upper and lower studs whereby tightening the nut on one oi"- the studs, thereby moving it longitudinally, serves to rotate the rod and draw the other stud in the opposite direction so as to bind the nuts carried thereby against the arm simultaneously and with equal force, substantially as and for the purposes (lGSClliJQt.
6. In a construction of the character described, an arm a drill spindle journal mem- 1 i 1- man it 1M1 x i ber located against the end or tae a;
journal member having a vertical opening therein, a rod located loosely in said vertical opening and provided at each end with a sector-shaped projection, said projections at opposite ends of the rod being located at opposite sides of the axis of the rod, two studs provided with hooked ends located in horizontal openings made in the journal member one at each end of said rod, said hoe rod ends engaging with the projections on the rod and said studs passing through vertical slots in the end of the arm, and nuts threaded unto the ends of the studs back of said end of the arm, substantially as and for the purposes described.
7. In a device of the character described, an arm, a drill spindle journal member located against one end of the arm, a rod mounted in the journal member and adapted to turn about its longitudinal axis, two separate means connected with the rod and adapted to detachably and adjustably connect the journal member to the end of the arm, and interengagin g means between each of said two means and the rod for tightening or loosening one of said means simultaneously with the tightening or loosening of the other operable through a turning of the rod about its longitudinal axis, substantially as and for the purposes described.
8. In a construction of the character described, an arm, a drill spindle journal member located against one end of the arm, a rod loosely mounted on one of said members and adapted to turn about an axis parallel with the length of the rod, and means associated with each end of the rod for connecting the arm and journal member together, each 01": said means being movable lengthwise and operatively connected with the rod so as to turn the rod about said axis, one of said means acting to turn the rod in one direction and the other in the opposite direction, substantially as and for the purposes set forth.
9. In construction of the character described, an arm, a drill spindle ournal member located against one end of the arm, a rod loosely mounted on one of said members and positioned vertically thereon and adapted to turn about a vertical axis parallel with the length of the rod, and upper and lower means for connecting the arm and journal member together, each of said means having operative connections with the rod adjacent its upper and lower ends, said means each being movable longitudinally and operating to turn the rod about said axis, one of said means acting to turn the rod in one di ection and the other in the opposite direction, substantially as and for the purposes described. I
In testimony whereof I my signature.
EDGAR XV. CLEVELAND.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US327105A US1350004A (en) | 1919-09-29 | 1919-09-29 | Journal adjustment for arms of multiple-spindle drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US327105A US1350004A (en) | 1919-09-29 | 1919-09-29 | Journal adjustment for arms of multiple-spindle drills |
Publications (1)
Publication Number | Publication Date |
---|---|
US1350004A true US1350004A (en) | 1920-08-17 |
Family
ID=23275179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US327105A Expired - Lifetime US1350004A (en) | 1919-09-29 | 1919-09-29 | Journal adjustment for arms of multiple-spindle drills |
Country Status (1)
Country | Link |
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US (1) | US1350004A (en) |
-
1919
- 1919-09-29 US US327105A patent/US1350004A/en not_active Expired - Lifetime
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