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Machine translation
1. (WO1979000477) A DEVICE FOR INDICATING INADMISSIBLE LENGTH DEVIATIONS OF A PERFORATED WEB
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000477    International Application No.:    PCT/SE1979/000001
Publication Date: 26.07.1979 International Filing Date: 04.01.1979
IPC:
G01B 7/04 (2006.01)
Applicants:
Inventors:
Priority Data:
7800097 04.01.1978 SE
Title (EN) A DEVICE FOR INDICATING INADMISSIBLE LENGTH DEVIATIONS OF A PERFORATED WEB
(FR) DISPOSITIF INDIQUANT LES VARIATIONS INADMISSIBLES DE LONGUEUR D"UN PAPIER PERFORE CONTINU
Abstract: front page image
(EN)A device for indicating inadmissible length deviations of a perforated web, preferably a formaliner-perforated paper web to be used for the production of forms, where the printing press comprises at least one working mechanism provided with rotating working elements (5, 6, 7, 8, 10, 11, 12, 13), such as at least one punching work (9) for punching the perforations of the web, and possibly at least one printing unit (3, 4), and where at least one transmitter (15) receives values of the velocity of rotation of the working elements (12) of the working mechanism (9) and converts said values into pulses, at least one transmitter (16) receives values of the velocity of the web (1) and converts said values into pulses and at least one measuring unit (17) receives pulse information from the transmitters (15, 16). The object of the present invention is to continuously indicate and control the length of the perforated web during operation of the printing press. According to the present invention, this is reached mainly by the fact that the measuring unit (17) for each transmitter (15 and 16, respectively) comprises at lest one primary counter (18 and 13, respectively) and at least one secondary counter (35 and 36, respectively) said primary counter (18 and 19, respectively) operating on the pulse information obtained from the transmitters (15 and 16, respectively) by delaying the onset of the evaluation of any existing length deviation, and said secondary counter (35 and 36, respectively) thereafter evaluating the possible length deviation in order to obtain values for manually or automatically adjusting the web length, said measuring unit (17) also including at least one impulse and control circuit (32) for controlling a continuous transmission of said values during the operation of the printing press.
(FR)Dispositif indiquant les variations inadmissibles de longueur d"un papier perfore continu, de preference un papier perfore en bobine utilise pour la production de formulaires, dans lequel la presse a imprimer comprend au moins un mecanisme muni d"elements rotatifs (5, 6, 7, 8, 10, 11, 12, 13) tels qu"au moins une poinconneuse (9) pour effectuer les perforations du papier continu et, eventuellement, au moins une unite d"impresssion (3, 4), et dans lequel au moins un transmetteur (15) recoit des valeurs de la vitesse de rotation des elements (12) du mecanisme (9) et convertit lesdites valeurs en impulsions, au moins un transmetteur (16) recevant des valeurs de la vitesse de la nappe (1) et convertissant lesdites valeurs en impulsions et au moins une unite de mesure (17) recoit les impulsions des transmetteurs (15, 16). La presente invention a pour objet d"indiquer et de controler de facon continue la longueur du papier continu perfore pendant le fonctionnement de la presse a imprimer. Le resultat peut atre atteint grace au fait que l"unite de mesure (17) correspondant a chaque transmetteur (15 et 16, respectivement) comprend au moins un compteur primaire (18 et 19, respectivement) et au moins un compteur secondaire (35 et 36, respectivement), le compteur primaire (18 et 19, respectivement) agissant sur les impulsions fournies par les transmetteurs (15 et 16, respectivement) en retardant l"effet de l"evaluation de toute variation de longueur existante, et le compteur secondaire (35 et 36, respectivement) evaluant ensuite la variation de longueur eventuelle afin de produire des valeurs permettant d"ajuster manuellement ou automatiquement la longueur de la nappe, ladite unite de mesure (17) comprenant egalement au moins un circuit d"impulsion et de controle (32) en vue de la transmission continue desdites valeurs au cours du fonctionnement de la presse a imprimer.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)