US1884143A - Tube punching apparatus - Google Patents
Tube punching apparatus Download PDFInfo
- Publication number
- US1884143A US1884143A US381496A US38149629A US1884143A US 1884143 A US1884143 A US 1884143A US 381496 A US381496 A US 381496A US 38149629 A US38149629 A US 38149629A US 1884143 A US1884143 A US 1884143A
- Authority
- US
- United States
- Prior art keywords
- tube
- plunger
- mold
- machine
- cylinder
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow 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
- Y10T83/00—Cutting
- Y10T83/384—By tool inside hollow work
- Y10T83/391—With means to position tool[s] for cutting
-
- 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
- Y10T83/00—Cutting
- Y10T83/384—By tool inside hollow work
- Y10T83/392—One tool [either internal or external] having compound motion
-
- 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
- Y10T83/00—Cutting
- Y10T83/384—By tool inside hollow work
- Y10T83/394—One tool having unidirectional rotary motion
-
- 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
- Y10T83/00—Cutting
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/756—Self-locking drive means
-
- 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
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8771—Motion direction of tool influenced by resistance of work
-
- 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
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9372—Rotatable type
- Y10T83/9377—Mounting of tool about rod-type shaft
- Y10T83/9379—At end of shaft
Definitions
- This invention relates to improvements in tube ventilators for grain and a machine for making the same, and refers more particularly to the mechanism or machine for mak- 5 ing the tubes, as tube ventilators of this character, comprising a hollow pipe perforated at intervals to allow air to pass through the body of the grain have been known and used for some time.
- the important objects of the invention are: to provide a machine by means of which the metallictubes can be perforated by projecting 'therethrough a plunger upon which are mounted cutters which perforate the tube at regular intervals; to provide a machine in which the plunger may be rotated so that it cuts the sets of perforations at relatively equally spaced apart intervals by a single passage to the end of the tube and back to its original position.
- Fig.1 is a diagrammatic side elevational view of the machine with parts broken away.
- Fig. 2 is a view taken along the line 22 in Fig. 1.
- Fig. 3 is a View taken along. a the line 3-3 in Fig. 2.
- Fig. 4 is a side view of the clamp or mold portion in which the tube is held during the perforating operation.
- Fig. 5 is a side view of one of the'ventilator tubes with aportion near the center of the tube broken away.
- Fig. 6 is a fragmentary view of the tube with parts in section.
- Fig. 7 is an end view of the tube Shown in Fig. 6.
- the machine consists of a channel member which supports both the hydraulic or air cylinder and also the clamps for the tube. This channel is held on suitable standards not shown.
- the cylinder is designated in the drawings as 2.
- This cylinder may be a compressed air or hydraulic cylinder.
- the fluid under pressure is supplied to the cylinder through a pipe 3 controlled by a throttle valve 4.
- the throttle valve is of such character that the compressed fluid may be introduced into the cylinder at either end so that the piston may be forced in either direction in the cylinder;
- the pipes which are connected up to the cylinder have been broken away in the drawings inthe interest of simplicity.
- Pipe 5 supplies fiuid to the opposite end of the cylinder, while pipe 6 serves as a supply pipe and pipe 7 as a discharge pipe.
- the cylinder is held In place on the channel member 1 by means of clamps 8.
- the piston rod attached to the hydraulic or. a1r piston extends through the frontof the cylinder through a packed joint not shown and is designated by the number 9.
- the plunger 10 On this rod is mounted the plunger 10.
- the cutter members 11 In cutaway portions of-the plunger are positioned the cutter members 11. These cutter members are circular and have teeth 12 upon their outereperiphery which Serve to, cut the ;lots 513 in the ventilator tubes 14 shown in
- the cutout portions of the plunger are in diiferent planes so that the cutters themselves lie in different planes relative to the axis of the plunger and piston. Also there are two cutters 11 in each cutout portion of theplung er,'the rotating axis of the two cutters being offset from each other.
- FIG. 2 of the drawings The ventilatortubes which are to be perforated or slot-ted as shown in Fig. 5 are of a thin metal such as galvanized iron. Down spout pipes are used, as they are of low cost and are of the desired gauge of metal. These tubes or pipes are placed between the upper and lower molds or clamps 13 and 14:, shown in Fig. 3. To separate the mold, a lever15, which is an extension of the yoke member 16, is swung upon its pivots 17.
- This yoke through the bars 18 moves the horizontal bars 19 which are in turn attached to the eccentric plates 20.
- These eccentric plates near their upper ends, have inclined slots 21 in which slide the pins 22. These pins are held in place I on the top ofzthe mold member 14 by means of the plates 23 and bolts 24.
- the eccentric plates 20 are pivoted at the bottom of the channels on the pins 25.
- the lever 15, which is an extension of the yoke 16 is moved so that the pins 22 slide into the lower end of the inclined slots 21.
- the pins 22 are rigidly fixed to the upper clamp or mold half 14, this portion of the mold is raised or separated from the lower portion 18.
- the tube or pipe is then inserted into the mold and the upper clamp or mold half lowered so that the pipe is held in position, as the inside diameter of the circular mold halves corresponds to the outer diameter of the pipe to be perforated.
- the plunger wi hin the cylinder top is moved forwardly, forcing the plunger 10 to enter into the hollow end of the tube 14.
- the plunger continues to advance throughout the length of the tube.
- the cutters on the plunger are so arranged that perforations are cut on diametrically opposite sides of the tube in three different planes relative to the axis of the tube.
- the plunger When the plunger has passed entirely through the tube and out through the opposite end, it is rotated through an angle of 45 or any other suitable angle, by means of the lever 28, and then again withdrawn through the tube, at which time six more rows of perforations are made by the cutter members, so that twelve rows of perforations are made through a single complete cycle of the plunger.
- the mold or clamp members 13 and 14 are again separated by a thrust of the lever 15, and the extruding block 27 is fitted in the end of the plunger.
- This extruding block is of slightly larger diameter than the plunger and extrudes the perforated tube from the mold as the plunger is advanced as in the cutting operation by the control throttle 4.
- a separate tube such as that shown at 29.
- Such a tube is held in place by means of clamps shown at 30 in Fig. 7.
- grain ventilating tubes may be perforated by projecting the cutter through the tube and back to its original position and rotating the cutter at the end of its stroke to position the cutters relative the tube so that the slots or perforations will be at regular intervals throughout its periphery.
- the tapered or pointed end portion 31 is fitted onto the end of the tubes to facilitate the insertion of the ventilator tubes into the body of the grain.
- Machine for making grain ventilators comprising a separable mold for holding the ventilator and having longitudinal troughs cut in the interior surface thereof, a plunger insertable in the mold, circular perforation cutters mounted and rotated axially of the plunger and positioned in different planes so that the perforated edges of the cutters coincide with the troughs in the mold.
- Machine for making grain ventilators comprising a separable mold for holding the ventilator and having longitudinal troughs cut in the interior surface thereof, a plunger insertable in the mold, circular perforation cutters mounted and rotated axially of the plunger and positioned in different planes so that the perforated edges of the cutters coincide with the troughs in the mold, and means for rotating the plunger on its axis to position the cutters at different positions relative to the mold.
- a machine for making perforated tubes comprising a separable mold having longitudinal troughs cut in the interior surface thereof for holding the tube, a reciprocating ram rotatable upon its axis and insertable in the mold, and perforation cutters on the ram adapted to perforate the tube upon insertion of the ram in the tube and movement there along.
- areciprocating member adapted to be reciprocated within a tube, a plurality of rotatable members carried by the reciprocating member, said rotatable members being disposed in planes at an angle to each other and provided with punching elements, said elements adapted to perforate the tube upon movement of said reciprocating member therealong.
- a reciprocating member adapted to be reciprocated within a tube, said reciprocating member being provided with a recess, and a. plurality of rotatable members provided with punching elements disposed in said recess, said punching elements adapted to perforate said tube upon movement of said reciprocating member therealong.
- a reciprocating member adapted to be reciprocated within a tube, said reciprocating member being provided with a recess, and a plurality of rotatable members provided with punching elements disposed in eccentric relationship within said recess and adapted to perforate said tube upon movement of said reciprocating member therealong.
- a reciprocating member having a plurality of recesses disposed in angular circumferential relationship, said member adapted to be reciprocated within a tube, rotatable members disposed in said recesses, said rotatable members being provided with punching elements, adapted to perforate said tube u n movement ofsaid reciprocating member t erealong.
- a machine as in claim 4 having a mold surrounding said tube for cooperation with said punching elements.
- a machine as in claim 5 havin a mold surroundingsaid tube for cooperation with said punching elements.
- a machine as in claim 6 having a mold surrounding said tube for cooperation with said punching elements.
- a machine as in claim 7 having a mold surrounding said tube for cooperation with said punching elements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
Oct. 25, 1932. v. c. NORQUIST 1,884,143
TUBE PUNCHING APPARATUS Filed July 2'7, 1929 2 Sheets-611%: l
A INVENTOR. Viczar (Z Mrr uisf M J2 Q Z ATTOR EY Oct. 25, 1932. v. c. NORQUIST TUBE PUNCHING APPARATUS 2 Shets-$heet 2 Filed July 27, 1929 R m E m w n aw A r. l V J Y B Patented Oct. 25, 1932 UNI-TED STATES PATENT-f OFFICE VICTOR o. NORQUIST, 01E KANSAS CITY, MISSOURI, ASSIGNOB TO BUTLER MANUFAOTUR- ING ooMPANY, OF KANSAS CITY, MISSOURI, A CORPORATION OF. MISSOURI TUBE PUNCHING AP PARJ-K'I'U'S Application med J'uly' 27, 1929. Serial No. 381,496.
This invention relates to improvements in tube ventilators for grain and a machine for making the same, and refers more particularly to the mechanism or machine for mak- 5 ing the tubes, as tube ventilators of this character, comprising a hollow pipe perforated at intervals to allow air to pass through the body of the grain have been known and used for some time.
Among the important objects of the inventionare: to provide a machine by means of which the metallictubes can be perforated by projecting 'therethrough a plunger upon which are mounted cutters which perforate the tube at regular intervals; to provide a machine in which the plunger may be rotated so that it cuts the sets of perforations at relatively equally spaced apart intervals by a single passage to the end of the tube and back to its original position.
Fig.1 is a diagrammatic side elevational view of the machine with parts broken away. Fig. 2 is a view taken along the line 22 in Fig. 1. Fig. 3 is a View taken along. a the line 3-3 in Fig. 2. Fig. 4 is a side view of the clamp or mold portion in which the tube is held during the perforating operation. Fig. 5 is a side view of one of the'ventilator tubes with aportion near the center of the tube broken away. Fig. 6 is a fragmentary view of the tube with parts in section. Fig. 7 is an end view of the tube Shown in Fig. 6.
Referring to the drawings, the machine consists of a channel member which supports both the hydraulic or air cylinder and also the clamps for the tube. This channel is held on suitable standards not shown.
Referring first to the plunger or cutter head which is forced through the tube or ventilator by means of a hydraulic or compressed air cylinder; the cylinder is designated in the drawings as 2. This cylinder may be a compressed air or hydraulic cylinder. In either case, the fluid under pressure is supplied to the cylinder through a pipe 3 controlled by a throttle valve 4. The throttle valve is of such character that the compressed fluid may be introduced into the cylinder at either end so that the piston may be forced in either direction in the cylinder; The pipes which are connected up to the cylinder have been broken away in the drawings inthe interest of simplicity. Pipe 5 supplies fiuid to the opposite end of the cylinder, while pipe 6 serves as a supply pipe and pipe 7 as a discharge pipe. The cylinder is held In place on the channel member 1 by means of clamps 8. I I
The piston rod attached to the hydraulic or. a1r piston extends through the frontof the cylinder through a packed joint not shown and is designated by the number 9. On this rod is mounted the plunger 10. In cutaway portions of-the plunger are positioned the cutter members 11. These cutter members are circular and have teeth 12 upon their outereperiphery which Serve to, cut the ;lots 513 in the ventilator tubes 14 shown in The cutout portions of the plunger are in diiferent planes so that the cutters themselves lie in different planes relative to the axis of the plunger and piston. Also there are two cutters 11 in each cutout portion of theplung er,'the rotating axis of the two cutters being offset from each other. so that one cutter contacts and cuts the surface of the'tube diametrically opposite from the other cutter positioned in the same cutout portion of the plunger. This eccentric arrangement is shown bestin Fig. 2 of the drawings The ventilatortubes which are to be perforated or slot-ted as shown in Fig. 5 are of a thin metal such as galvanized iron. Down spout pipes are used, as they are of low cost and are of the desired gauge of metal. These tubes or pipes are placed between the upper and lower molds or clamps 13 and 14:, shown in Fig. 3. To separate the mold, a lever15, which is an extension of the yoke member 16, is swung upon its pivots 17. This yoke through the bars 18 moves the horizontal bars 19 which are in turn attached to the eccentric plates 20. These eccentric plates, near their upper ends, have inclined slots 21 in which slide the pins 22. These pins are held in place I on the top ofzthe mold member 14 by means of the plates 23 and bolts 24. The eccentric plates 20 are pivoted at the bottom of the channels on the pins 25.
Along the side of the clamping portion of the machine is an inclined chute 26 in which is rolled the extruding block 27. V
In operation, the lever 15, which is an extension of the yoke 16, is moved so that the pins 22 slide into the lower end of the inclined slots 21. As the pins 22 are rigidly fixed to the upper clamp or mold half 14, this portion of the mold is raised or separated from the lower portion 18.
The tube or pipe is then inserted into the mold and the upper clamp or mold half lowered so that the pipe is held in position, as the inside diameter of the circular mold halves corresponds to the outer diameter of the pipe to be perforated. By means of the throttle 4 the plunger wi hin the cylinder top is moved forwardly, forcing the plunger 10 to enter into the hollow end of the tube 14. The plunger continues to advance throughout the length of the tube. The cutters on the plunger are so arranged that perforations are cut on diametrically opposite sides of the tube in three different planes relative to the axis of the tube.
When the plunger has passed entirely through the tube and out through the opposite end, it is rotated through an angle of 45 or any other suitable angle, by means of the lever 28, and then again withdrawn through the tube, at which time six more rows of perforations are made by the cutter members, so that twelve rows of perforations are made through a single complete cycle of the plunger.
The mold or clamp members 13 and 14 are again separated by a thrust of the lever 15, and the extruding block 27 is fitted in the end of the plunger. This extruding block is of slightly larger diameter than the plunger and extrudes the perforated tube from the mold as the plunger is advanced as in the cutting operation by the control throttle 4.
If :desired, there may be placed within the ventilator tube a separate tube such as that shown at 29. The use of the internal tube of the character shown at 29, however, forms no part of the present invention. Such a tube is held in place by means of clamps shown at 30 in Fig. 7.
By the use of this machine, grain ventilating tubes may be perforated by projecting the cutter through the tube and back to its original position and rotating the cutter at the end of its stroke to position the cutters relative the tube so that the slots or perforations will be at regular intervals throughout its periphery.
- The tapered or pointed end portion 31 is fitted onto the end of the tubes to facilitate the insertion of the ventilator tubes into the body of the grain.
I claim as my invention:
1. Machine for making grain ventilators comprising a separable mold for holding the ventilator and having longitudinal troughs cut in the interior surface thereof, a plunger insertable in the mold, circular perforation cutters mounted and rotated axially of the plunger and positioned in different planes so that the perforated edges of the cutters coincide with the troughs in the mold.
2. Machine for making grain ventilators comprising a separable mold for holding the ventilator and having longitudinal troughs cut in the interior surface thereof, a plunger insertable in the mold, circular perforation cutters mounted and rotated axially of the plunger and positioned in different planes so that the perforated edges of the cutters coincide with the troughs in the mold, and means for rotating the plunger on its axis to position the cutters at different positions relative to the mold.
3. A machine for making perforated tubes, comprising a separable mold having longitudinal troughs cut in the interior surface thereof for holding the tube, a reciprocating ram rotatable upon its axis and insertable in the mold, and perforation cutters on the ram adapted to perforate the tube upon insertion of the ram in the tube and movement there along.
4. In a tube punching machine, areciprocating member adapted to be reciprocated within a tube, a plurality of rotatable members carried by the reciprocating member, said rotatable members being disposed in planes at an angle to each other and provided with punching elements, said elements adapted to perforate the tube upon movement of said reciprocating member therealong.
5. In a tube punching machine, a reciprocating member adapted to be reciprocated within a tube, said reciprocating member being provided with a recess, and a. plurality of rotatable members provided with punching elements disposed in said recess, said punching elements adapted to perforate said tube upon movement of said reciprocating member therealong.
' 6. In a tube punching machine, a reciprocating member adapted to be reciprocated within a tube, said reciprocating member being provided with a recess, and a plurality of rotatable members provided with punching elements disposed in eccentric relationship within said recess and adapted to perforate said tube upon movement of said reciprocating member therealong.
7. In a tube punching machine, a reciprocating member having a plurality of recesses disposed in angular circumferential relationship, said member adapted to be reciprocated within a tube, rotatable members disposed in said recesses, said rotatable members being provided with punching elements, adapted to perforate said tube u n movement ofsaid reciprocating member t erealong.
8. A machine as in claim 4 having a mold surrounding said tube for cooperation with said punching elements.
9. A machine as in claim 5 havin a mold surroundingsaid tube for cooperation with said punching elements.
10. A machine as in claim 6 having a mold surrounding said tube for cooperation with said punching elements.
7 11. A machine as in claim 7 having a mold surrounding said tube for cooperation with said punching elements.
VICTOR O. NORQUIST.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US381496A US1884143A (en) | 1929-07-27 | 1929-07-27 | Tube punching apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US381496A US1884143A (en) | 1929-07-27 | 1929-07-27 | Tube punching apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US1884143A true US1884143A (en) | 1932-10-25 |
Family
ID=23505261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US381496A Expired - Lifetime US1884143A (en) | 1929-07-27 | 1929-07-27 | Tube punching apparatus |
Country Status (1)
Country | Link |
---|---|
US (1) | US1884143A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156285A (en) * | 1960-03-31 | 1964-11-10 | Layne & Bowler Inc | Apparatus for providing openings in a tubular work piece |
US4270878A (en) * | 1977-09-30 | 1981-06-02 | Rainer Isolierrohrfabrik Max Drossbach | Corrugated drainage tubing and method and apparatus for making drainage tubing with helically arranged drainage openings |
US20040131426A1 (en) * | 2001-03-08 | 2004-07-08 | Franz-Josef Puttmann | Device for breaking up pipelines |
-
1929
- 1929-07-27 US US381496A patent/US1884143A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156285A (en) * | 1960-03-31 | 1964-11-10 | Layne & Bowler Inc | Apparatus for providing openings in a tubular work piece |
US4270878A (en) * | 1977-09-30 | 1981-06-02 | Rainer Isolierrohrfabrik Max Drossbach | Corrugated drainage tubing and method and apparatus for making drainage tubing with helically arranged drainage openings |
US20040131426A1 (en) * | 2001-03-08 | 2004-07-08 | Franz-Josef Puttmann | Device for breaking up pipelines |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3259003A (en) | Method and apparatus for forming openings in tubular members | |
DE3617559C1 (en) | Method and device for dividing a sausage strand produced on an automatic filling machine into a plurality of sausages which can be separated or separated from one another | |
DE3884378T2 (en) | CONTINUOUSLY CONTINUOUS PLATFORM WITH SEVERAL DOUBLE CLAMPING DEVICES FOR FORMING A CHAIN OF OBJECTS. | |
US2243614A (en) | Apparatus and method for treating tubular members | |
DE1602291C3 (en) | Mandrel changing device on a metal extrusion press | |
US1884143A (en) | Tube punching apparatus | |
DE3212121C2 (en) | Device for the production of sausage as a slicing product | |
US2031008A (en) | Apparatus for extruding metal | |
DE4215646C2 (en) | Device for cross-cutting a soft plastic mass strand | |
US1981059A (en) | Method of cutting tubes into lengths and apparatus therefor | |
DE3787891T2 (en) | INDIRECT EXTRUSION PRESS WITH TOOL REVOLVER HEAD ATTACHED TO THE PISTON. | |
US2963069A (en) | Apparatus for forming heat exchange tubing | |
US2811204A (en) | Apparatus for making heat transfer coils | |
DE2303065C3 (en) | Device and method for producing rocket propulsion chambers filled with propellants and use of the device for filling a solidifying liquid | |
US2721613A (en) | Apparatus for shearing tube | |
DE2409020A1 (en) | Thin-walled plastic corrugated, perforated drain pipes prodn. - by maaking holes -crrrorugations in pipe while stilll plastically deforme | |
DE627048C (en) | Machine for making briquettes from vegetable fibers | |
US3410130A (en) | Feed progression changer | |
DE2123628B2 (en) | METHOD AND DEVICE FOR MANUFACTURING METAL SHEET METAL PANELS WITH TUBE-LIKE LONGITUDINAL PASSAGES FOR FLOWING MEDIA | |
US3681964A (en) | Perforating machine and method | |
DE946332C (en) | Extrusion press for the production of objects from plastic materials, e.g. volume | |
DE1452373A1 (en) | Metal extrusion press for pressing blocks | |
DE30527C (en) | Brick molding machine for manual operation | |
DE908501C (en) | Regenerator for use in a hot piston machine | |
DE632471C (en) | Device for producing the two constrictions in the tubular casing of crackers |