DK163647B - APPARATUS FOR COMPOSITION OF TWO INGREDIENTS OF INGREDIENTS - Google Patents
APPARATUS FOR COMPOSITION OF TWO INGREDIENTS OF INGREDIENTS Download PDFInfo
- Publication number
- DK163647B DK163647B DK210586A DK210586A DK163647B DK 163647 B DK163647 B DK 163647B DK 210586 A DK210586 A DK 210586A DK 210586 A DK210586 A DK 210586A DK 163647 B DK163647 B DK 163647B
- Authority
- DK
- Denmark
- Prior art keywords
- trays
- metal bands
- clamping element
- pipe
- single band
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/861—Hand-held tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
DK 163647 BDK 163647 B
- i -- i -
Opfindelsen angår et apparat til sammensvejsning af to i hinanden indgribende rørdele af formstof, især et rør med muffe, under anvendelse af et spændelement, som omslutter den ydre rørdel, og tillige er udformet som elektrisk 5 varmelegeme, og som derfor kan forbindes med en strømkilde over to tilslutningssteder, og hvilket spændelement bærer to endebakker, som kan trykkes fra hinanden.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an apparatus for welding two interconnected plastic parts, in particular a pipe with sleeve, using a clamping element which encloses the outer pipe part, and is also designed as an electric heater and can therefore be connected to a power source. over two connection points, and which clamping member carries two end trays which can be pushed apart.
Der kendes et spændelement af denne art (DE-OS 1 704 205), 10 der er udformet som en bøjle, og som består af et forholdsvis bredt metalbånd, hvis ender, som bærer de to endebakker, overlapper hinanden mere eller mindre, når det spændes om de to rørdele. Endebakkerne er uløseligt forbundet med de to båndender ved hjælp af sideribber på en sådan 15 måde, at den ene båndende kan stikkes igennem mellem bakke-ribberne på den anden båndende. Det drejer sig således om at forbinde to stumpt mod hinanden stødende formstofrør ved hjælp af et tillægsmateriale, som omslutter formstofrørene i stødområdet under svejseprocessen, idet en opvarmning og 20 trykudøvelse, som er ensartet over hele rørets omkreds, ikke er af særlig stor betydning, thi på grund af det smeltende tillægsmateriale opnås der under alle omstændigheder en tæt rørforbindelse. Det er derfor også af underordnet betydning, om det metalbånd, som danner bøjlen, i overlap-25 ningsområdet for sine ender ligger helt an mod rørets periferi. Hvis derimod to i hinanden indgribende rørdele skal sammensvejses uden tillægsmateriale, kan der i overlapningsområdet på grund af uregelmæssig opvarmning og trykudøvelse optræde utætte eller ufuldkomment sammen-30 svejsede steder. Da endebakkerne er fast forbundet med metalbåndets ender, er spændelementet kun egnet til rør, hvis diameter varierer mellem forholdsvis snævre grænser.There is known a clamping member of this kind (DE-OS 1 704 205), 10 which is designed as a bracket and which consists of a relatively wide metal band, the ends of which carry the two end trays more or less overlap when tighten around the two pipe sections. The end trays are inextricably connected to the two belt ends by means of side ribs in such a way that one strip end can be pierced between the tray ribs on the other strip end. Thus, it is a matter of connecting two mutually abrasive plastic pipes by means of an additional material which encloses the plastic pipes in the impact area during the welding process, since heating and pressure, which are uniform throughout the entire circumference of the pipe, are not very important, because in any case, due to the melting additive, a dense pipe connection is obtained. Therefore, it is also of minor importance whether the metal band forming the hoop in the overlap region at its ends is fully in contact with the periphery of the tube. If, on the other hand, two intervening pipe parts are to be welded together without additional material, leakage or imperfect welded locations may occur in the overlap area due to irregular heating and pressure exertion. Since the end trays are firmly connected to the ends of the metal strip, the clamping element is only suitable for pipes whose diameter varies between relatively narrow boundaries.
Hvis man derimod skal sammensvejse rør af helt forskellig diameter, så må man lagerføre fuldstændige spændelementer 35 svarende til de forskellige størrelser, hvilket medfører forhøjede omkostninger.If, on the other hand, welding tubes of completely different diameters are to be welded, then complete tension elements 35 corresponding to the different sizes must be stored, resulting in increased costs.
DK 163647 BDK 163647 B
- 2 -- 2 -
Til grund for opfindelsen ligger således den opgave at afhjælpe disse mangler og at forbedre det angivne apparat på en sådan måde, at der fås en regelmæssig opvarmning og trykudøvelse over hele røromkredsen, ligesom der fås en 5 forenkling i lagerføringen og håndteringen.Thus, the object of the invention is to remedy these deficiencies and to improve the specified apparatus in such a way that regular heating and pressure is provided throughout the entire pipe circumference, as well as a simplification in the storage and handling.
Ifølge opfindelsen løses den angivne opgave ved, at spænd-elementet har to parallelle metalbånd, og at strømtilslutningerne er anbragt ved deres ene endeområde, medens deres 10 andet endeområde er ledende forbundet med et enkeltbånd, hvis bredde højst svarer til afstanden mellem de to metalbånd, og de frie ender af de to metalbånd og enkeltbåndet er forsynet med koblingsled, fortrinsvis stikstifter til fastgørelse af endebakkerne.According to the invention, the stated task is solved by the tension element having two parallel metal bands and the power connections being arranged at their one end region, while their other end region is conductively connected to a single band whose width is at most equal to the distance between the two metal bands. and the free ends of the two metal strips and the single strip are provided with coupling joints, preferably plug pins for securing the end trays.
1515
Ved denne udformning af spændelementet er det muligt at trække enkeltbåndet igennem mellem de to parallelle bånd, altså at arbejde med hinanden krydsende båndender og således at omslutte den indesluttede rørdel, især den inde-2Θ sluttede muffe, uden noget afbrydelsessted, hvorved den regelmæssige opvarmning og trykudøvelse sikres. Da endebakkerne er demonterbart koblet til de frie ender af de to metalbånd og af enkeltbåndet, er det muligt at tage endebakkerne af ved hjælp af en indretning til borttrykning af 25 bakkerne fra hinanden og at sætte dem på bånd med væsentlig større længde til brug på et tilsvarende større rør. Man behøver derfor kun metal- henholdsvis enkeltbånd af forskellig længde, hvorimod den egentlige spænd indretning, nemlig bakkerne med organerne til disses borttrykning fra 30 hinanden, er den samme til alle størrelser. Dertil kommer, at håndteringen af hele apparatet i høj grad forenkles, når man kun behøver blot at lægge metalbåndene henholdsvis en-keltbåndet om røret, hvorefter man kan påsætte spænd-bakkerne.In this design of the clamping element it is possible to pull the single strip through between the two parallel strips, ie to work with each other intersecting strip ends and thus to enclose the enclosed pipe part, especially the inner 2Θ closed sleeve, without any interruption point, whereby the regular heating and pressure exertion is ensured. Since the end trays are demountably coupled to the free ends of the two metal strips and of the single band, it is possible to remove the end trays by means of a device for pushing the 25 trays apart and putting them on strips of substantially greater length for use on a correspondingly larger tubes. Therefore, only metal or single strips of different length are needed, whereas the actual tensioning device, namely the trays with the means for pushing them apart from each other, is the same for all sizes. In addition, the handling of the whole apparatus is greatly simplified, when you only need to simply place the metal bands or the single band around the pipe, after which you can apply the clamping trays.
I en yderligere udformning ifølge opfindelsen findes der til trykning af de to endebakker fra hinanden, som er for- 35 - 3 -In a further embodiment of the invention, there is provided for printing the two end trays which are 35 - 3
DK 163647 BDK 163647 B
skydeligt lejret på en føring, en skruespindel, som støtter mod en endebakke over en trykfjeder- Ved hjælp af denne fjeder udøves der et varigt udspilingstryk på de to bakker, så at metalbåndenes spændetryk opretholdes under svejse-5 processen, uden at man behøver løbende at udligne den ved svejsningen opstående diameterformindskelse af røret eller af muffen i området for apparatet ved hjælp af skruespindlen.slidably mounted on a guide, a screw spindle supporting an end tray over a compression spring. This spring exerts a durable play-out pressure on the two trays so that the tension of the metal bands is maintained during the welding process without having to continuously compensate for the diameter reduction caused by the welding of the pipe or of the sleeve in the area of the apparatus by means of the screw spindle.
10 Opfindelsen skal forklares nærmere i forbindelse med tegningen, hvor fig. 1 viser et apparat til sammensvejsning af to i hinanden indgribende rørdele uden endebakker i 15 strækstilling, fig. 2 bakkerne med skruespindlen set fra siden, og fig. 3 apparatet i brugsstilling i snit på tværs af rør-20 aksen.The invention will be explained in more detail in connection with the drawing, in which fig. 1 shows an apparatus for welding two interconnecting pipe parts without end trays in a stretching position; FIG. 2 is a side view of the tray spindle; and FIG. 3 shows the device in use in section across the pipe-axis.
Spændelementet, der på samme tid virker som varmeelement, har to parallelle metalbånd 1, som i deres ene endeområde er ledende forbundet med et enkeltbånd 2, hvis bredde 25 svarer til afstanden mellem de to metalbånd 1. I deres andet endeområde bærer metalbåndene 1 nogle strømstilslutninger 3. Ved omslyngning af en muffe eller lignende kan enkeltbåndet 2 trækkes igennem mellem de parallelle metalbånd 1.The clamping element, which at the same time acts as a heating element, has two parallel metal bands 1, which in their one end region are conductively connected to a single band 2, the width of which 25 corresponds to the distance between the two metal bands 1. In their other end region, the metal bands 1 carry some power connections. 3. By wrapping a sleeve or the like, the single band 2 can be pulled through between the parallel metal bands 1.
3030
Ved enden af enkeltbåndet 2 og i endeområdet for metal-båndene 1 findes der koblingselementer 4 i form af stifter til indgreb af en spændedrivmekanisme, som i sin helhed betegnes 5. Denne spændedrivmekanisme 5 har to endebakker 35 6a, 6b, som er indbyrdes forskydelige på to stænger eller rør 7, som danner en føring. Endebakkerne 6a, 6b har boringer 8 hvori koblingsleddene eller stifter 4 kan gribe - 4 -At the end of the single band 2 and in the end region of the metal bands 1, there are coupling elements 4 in the form of pins for engaging a tension drive mechanism, which is designated in its entirety 5. This tension drive mechanism 5 has two end trays 35 6a, 6b two rods or tubes 7 forming a guide. The end trays 6a, 6b have bores 8 in which the coupling joints or pins 4 can engage - 4 -
DK 163647 BDK 163647 B
ind. Endebakken 6b har et møtrikgevind 9 for en passerende skruespindel 10. Denne skruespindel 10 støtter mod den anden bakke 6a over en trykfjeder 11 og bærer et håndgreb 12.in. The end tray 6b has a nut thread 9 for a passing screw spindle 10. This screw spindle 10 supports against the second tray 6a over a compression spring 11 and carries a handle 12.
5 I fig. 3 er det vist, hvorledes et kapperør til fjernvarme bestående af et indvendigt stålrør 13, en ydre kappe 14 og et skumstofmellemlag 15 sammensvejses med en forbindelsesmuffe 16. Spændelementet 1,2 anbringes på muffens yderside, så at det omslynger muffen 16. Så forbindes spændedriv-10 mekanismen 5 over koblingsleddene 4 med enderne af spændelementet 1,2, endebakkerne 6a,6b skubbes fra hinanden ved hjælp af skruespindlen 10 til opnåelse af pressetryk, og man sætter endelig spænding på metalbåndene 1 ved hjælp af strømtilslutningerne 3.5 In FIG. 3, it is shown how a district heating casing consisting of an inner steel pipe 13, an outer casing 14 and a foam intermediate layer 15 are welded together with a connecting sleeve 16. The clamping element 1,2 is placed on the outside of the sleeve so that it encloses the sleeve 16. Then the tension drive is connected. -10 the mechanism 5 over the coupling joints 4 with the ends of the clamping member 1,2, the end trays 6a, 6b is pushed apart by the screw spindle 10 to obtain compressive pressure and finally tension is applied to the metal bands 1 by means of the power connections 3.
15 20 25 30 3515 20 25 30 35
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0141085A AT384580B (en) | 1985-05-10 | 1985-05-10 | DEVICE FOR WELDING TWO MULTIPLE PIPE PARTS MADE OF PLASTIC |
AT141085 | 1985-05-10 |
Publications (4)
Publication Number | Publication Date |
---|---|
DK210586D0 DK210586D0 (en) | 1986-05-07 |
DK210586A DK210586A (en) | 1986-11-11 |
DK163647B true DK163647B (en) | 1992-03-23 |
DK163647C DK163647C (en) | 1992-08-17 |
Family
ID=3513285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK210586A DK163647C (en) | 1985-05-10 | 1986-05-07 | APPARATUS FOR COMPOSITION OF TWO INGREDIENTS OF INGREDIENTS |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0201479B1 (en) |
AT (1) | AT384580B (en) |
DE (1) | DE3675808D1 (en) |
DK (1) | DK163647C (en) |
HU (1) | HU208859B (en) |
YU (1) | YU45323B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997037167A1 (en) * | 1996-04-03 | 1997-10-09 | Appelblad, Karl, Gunnar | Method and tool for joining, repairs and maintenance of insulating line pipes |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4380909B2 (en) | 2000-12-06 | 2009-12-09 | 本田技研工業株式会社 | Hollow structure made of fiber reinforced composite material and method for joining the reinforcement |
FI117695B (en) * | 2004-10-01 | 2007-01-31 | Kwh Pipe Ab Oy | Tools for electrical welding of sleeves and pipes |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591383A (en) * | 1950-03-11 | 1952-04-01 | William F Stahl | Plastic-sealing element |
AT192113B (en) * | 1951-06-02 | 1957-09-25 | Int Standard Electric Corp | Welding method and device for carrying out the same |
US2786264A (en) * | 1952-10-08 | 1957-03-26 | Lavorazione Mat Plastiche Sas | Process and device for protecting the joints of metal pipes coated with multi-layer protecting thermoplastic linings |
DE1849053U (en) * | 1959-09-30 | 1962-03-29 | Siemens Ag | ARRANGEMENT FOR CONNECTING THERMOPLASTIC PLASTIC MATERIALS. |
DE1206572B (en) * | 1959-10-30 | 1965-12-09 | Siemens Ag | Device for welding tubular objects made of thermoplastic material, in particular cable sheaths |
US3035958A (en) * | 1959-11-05 | 1962-05-22 | Phillips Petroleum Co | Method of joining polyethylene pipe |
BE618072A (en) * | 1961-05-24 | |||
US3379595A (en) * | 1965-01-26 | 1968-04-23 | Mobil Oil Corp | Process and apparatus for heat sealing thermoplastic materials |
DE1704205A1 (en) * | 1967-11-02 | 1971-04-22 | Messer Griesheim Gmbh | Device for welding workpieces made of plastic or the like, in particular plastic pipes |
SE383286B (en) * | 1973-04-10 | 1976-03-08 | Solve Systemror Ab | DEVICE FOR CUTTING ROD |
US4132578A (en) * | 1976-10-15 | 1979-01-02 | Gell Jr Harold A | Plastic pipe welding apparatus and method |
US4695712A (en) * | 1983-06-27 | 1987-09-22 | Metcal, Inc. | Flexible autoregulating heater with a latching mechanism |
-
1985
- 1985-05-10 AT AT0141085A patent/AT384580B/en not_active IP Right Cessation
-
1986
- 1986-05-07 DK DK210586A patent/DK163647C/en not_active IP Right Cessation
- 1986-05-07 DE DE8686890129T patent/DE3675808D1/en not_active Expired - Fee Related
- 1986-05-07 EP EP86890129A patent/EP0201479B1/en not_active Expired - Lifetime
- 1986-05-08 YU YU733/86A patent/YU45323B/en unknown
- 1986-05-15 HU HU862049A patent/HU208859B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997037167A1 (en) * | 1996-04-03 | 1997-10-09 | Appelblad, Karl, Gunnar | Method and tool for joining, repairs and maintenance of insulating line pipes |
Also Published As
Publication number | Publication date |
---|---|
YU45323B (en) | 1992-05-28 |
EP0201479A3 (en) | 1989-03-15 |
HUH3181A (en) | 1988-05-30 |
EP0201479A2 (en) | 1986-11-12 |
DK210586D0 (en) | 1986-05-07 |
AT384580B (en) | 1987-12-10 |
YU73386A (en) | 1988-02-29 |
DK210586A (en) | 1986-11-11 |
DE3675808D1 (en) | 1991-01-10 |
DK163647C (en) | 1992-08-17 |
ATA141085A (en) | 1987-05-15 |
HU208859B (en) | 1994-01-28 |
EP0201479B1 (en) | 1990-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2878628A (en) | Method of and machine for wrapping articles, and wrapped articles | |
ES2035731T3 (en) | APPARATUS FOR STRING A TENNIS RACKET. | |
DK163647B (en) | APPARATUS FOR COMPOSITION OF TWO INGREDIENTS OF INGREDIENTS | |
US1879346A (en) | Circumferential pipe cutting or welding machine | |
US3666159A (en) | Clamping means for pipes and fittings | |
CN206348213U (en) | Steel bar gauge length instrument | |
DE602004007210D1 (en) | Device for processing the outer surfaces of pipes | |
US3512229A (en) | Outside pipe lineup clamp | |
SE8005566L (en) | DEVICE FOR WELDING OF THERMOPLASTIC SURFACE BANDS | |
US2502713A (en) | Rod bending device | |
SU454756A3 (en) | Pipe Connecting Device | |
CN116276459B (en) | Weld surface cleaning device | |
US2498934A (en) | Flexible band jar cap remover | |
US3856283A (en) | Pipe cutting and beveling tool | |
US1879122A (en) | Clamp for use in welding | |
US3853051A (en) | Strap positioning apparatus | |
US10421163B2 (en) | Assembly for inserting a thermocouple into a tubular pipe and corresponding method | |
DE69604726T2 (en) | Device around in particular end faces for processing at the end of plastic pipes | |
GB2096511B (en) | Tube end forming apparatus with clamping device | |
GB907195A (en) | Suction cleaner hose | |
US2372763A (en) | Tying machine for elongated packages | |
US3956873A (en) | Banderolling apparatus | |
US11292104B1 (en) | Pipe clamp apparatus and method | |
US2480499A (en) | Broaching apparatus | |
CN209619727U (en) | It is a kind of cut open cloth machine cut open cloth apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |
Country of ref document: DK |