CH178824A - Stencil clamping device on rotary stencil printers. - Google Patents
Stencil clamping device on rotary stencil printers.Info
- Publication number
- CH178824A CH178824A CH178824DA CH178824A CH 178824 A CH178824 A CH 178824A CH 178824D A CH178824D A CH 178824DA CH 178824 A CH178824 A CH 178824A
- Authority
- CH
- Switzerland
- Prior art keywords
- stencil
- clamping device
- printers
- rotary
- rod
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
- B41L13/00—Stencilling apparatus for office or other commercial use
- B41L13/04—Stencilling apparatus for office or other commercial use with curved or rotary stencil carriers
- B41L13/08—Stencilling apparatus for office or other commercial use with curved or rotary stencil carriers with stencil carried by two or more cylinders, e.g. through the intermediary of endless bands
- B41L13/10—Clips or clamps for securing stencils to stencil carriers
Landscapes
- Printing Plates And Materials Therefor (AREA)
Description
Schablonen-Aufspannvorrichtung an Rotationsschablonendruckern. Die Erfindung betrifft eine Vorrichtung zum faltenlosen Aufspannen neuer oder ge- brauchter Schablonen bei Rotations - Stha- blonendruckern.
Die Schablonen mussten bislang von Hand um die Vervielfältigungswalze gelegt werden. Es war dabei unvermeidlich, ,dass sich in der Schablone Falten bildeten, .die nur schwie rig herauszubringen waren, denn die Scha blone klebt beim Auflegen sofort an der feuchten Druckwalze. Beim Versuch, die Falten glattzustreichen, beschmutzte man sich die Hände an der durch die Perforation der Schablone gedrungenen Farbe. Das Druckbild erschien dann bei den ersten Ab drucken unsauber, was einen Verlust an Pa pier und Zeit bedeutete; einzelne Buchstaben waren zusammengedrückt, die Zeilen un gerade.
Die zurückgebliebenen Falten wur den schon nach kurzer Zeit farbdurchlässig.
Die angeführten Mängel zu beseitigen, ist der Zweck der Erfindung. Auf der Zeich nung ist ein Ausführungsbeispiel der Auf spannvorrichtung dargestellt; es zeigt: Fig. 1 die Vorrichtung in Draufsicht, Fig. 2 die Vorrichtung im Querschnitt mit teilweiser Seitenansicht des Rotatiansver- vielfältigers.
Die der Schablone 8 anhaftende Karton unterlage trennt man von der Schablone -ab und steckt die Schablone durch den Schlitz 5 eines im Maschinengestell 6 vor der Druck walze angeordneten Stabes 4 und befestigt sie an der Haltevorrichtung 10 der Druck walze 9. Der Querschnitt des Stabes 4 ist aus der Fig. 2 erkennbar. Die durch -den Schlitz entstandenen beiden Wangen des Stabes sind im Querschnitt rund. Hernach dreht man den Stab 4, so dass sich -die durch gesteckte Schablone etwas um diesen wickelt; in dieser Stellung wird der Stab nun festge halten.
Dann dreht man die Druckwalze 9 in Richtung des Pfeils 7; .die Sohablone läuft dabei in einer die Richtung wechselnden Bahn durch den Schlitz 5 des verdrehten Stabes und legt sich völlig gleichmässig straff um die Druckwalze. Der Stab 4 kann hierbei mit dem an diesem befestigten Griff 3, wenn er- forderlich, nachreguliert werden. Die Scha blone ist nun vollkommen faltenlos und un beschmutzt aufgespannt.
Stencil clamping device on rotary stencil printers. The invention relates to a device for the crease-free clamping of new or used stencils in rotary stencil printers.
Up to now, the stencils had to be placed around the reproduction roller by hand. It was inevitable that creases would form in the stencil, which were difficult to remove because the stencil sticks to the damp printing roller immediately when it is placed on the stencil. When trying to smooth out the creases, one soiled one's hands on the paint that had penetrated the perforation of the stencil. The printed image then appeared unclean with the first prints, which meant a loss of paper and time; individual letters were compressed, the lines uneven.
The remaining wrinkles became the color permeable after a short time.
The purpose of the invention is to eliminate the deficiencies mentioned. On the drawing an embodiment of the clamping device is shown; It shows: FIG. 1 the device in plan view, FIG. 2 the device in cross section with a partial side view of the rotary multiplier.
The cardboard pad adhering to the stencil 8 is separated from the stencil and the stencil is inserted through the slot 5 of a rod 4 arranged in the machine frame 6 in front of the pressure roller and attached to the holding device 10 of the pressure roller 9. The cross section of the rod 4 can be seen from FIG. 2. The two cheeks of the rod created by the slot are round in cross section. Then turn the rod 4 so that the stencil inserted through the stencil wraps itself around it; in this position the rod will now hold Festge.
Then the pressure roller 9 is rotated in the direction of arrow 7; The template then runs in a direction-changing path through the slot 5 of the twisted rod and is completely evenly taut around the printing roller. The rod 4 can be readjusted here with the handle 3 attached to it, if necessary. The stencil is now stretched completely free of folds and without dirt.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH178824T | 1934-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH178824A true CH178824A (en) | 1935-08-15 |
Family
ID=4428802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH178824D CH178824A (en) | 1934-10-15 | 1934-10-15 | Stencil clamping device on rotary stencil printers. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH178824A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570397A (en) * | 1967-10-13 | 1971-03-16 | Gestetner Ltd | Stencil duplicators |
US3996853A (en) * | 1974-06-11 | 1976-12-14 | Gestetner Limited | Stencil loading device |
-
1934
- 1934-10-15 CH CH178824D patent/CH178824A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570397A (en) * | 1967-10-13 | 1971-03-16 | Gestetner Ltd | Stencil duplicators |
US3996853A (en) * | 1974-06-11 | 1976-12-14 | Gestetner Limited | Stencil loading device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH178824A (en) | Stencil clamping device on rotary stencil printers. | |
DE613966C (en) | Stencil clamping device for rotary stencil printer | |
DE565163C (en) | Printing drum for rotary stencil printer | |
DE620407C (en) | Box-shaped carbon copy device | |
DE479017C (en) | Stencil printer with a flat printing stencil | |
DE575768C (en) | Device for displaying differences in development on the printing cylinder of printing machines | |
AT273868B (en) | Setup on circular templates | |
DE959915C (en) | Rotary stencil printer with facility for crimping copies as they exit the machine | |
DE669484C (en) | Transfer printing device | |
DE541177C (en) | Device for attaching wax stencils to a holder in rotary stencil printers | |
DE513464C (en) | Device on typewriters for line-by-line filing of sheets with perforated edges | |
CH250081A (en) | Die stamps for making copies by hand. | |
DE635188C (en) | Sheet scraper for rotary stencil printer | |
DE346003C (en) | Coloring device for gelatin clichés | |
DE631354C (en) | Printing drum for rotary multiplier | |
DE621215C (en) | Device for expressing wet sensors, rags, items of laundry or the like. | |
DE493488C (en) | Stencil printing device using stencils provided with underlay sheets | |
DE644030C (en) | Tissue tensioning and folding device for fabric clippers u. like | |
AT115662B (en) | Rotogravure printing machine with clamped printing plates. | |
DE579910C (en) | Print frame for hand printing with templates | |
DE413082C (en) | Stencil printing device | |
DE823495C (en) | Trouser tensioning device | |
DE618694C (en) | Device for cleaning the printed sheets before printing on rotary office printing machines | |
DE417097C (en) | Inking unit for printing machines that can swing or can be raised and lowered | |
DE617875C (en) | Gravure printing machine with counter-pressure roller that can be lifted off by lever devices for printing individual items |