Reversing device for the longitudinal advance of a ribbon of typ

Details Reversing device for the longitudinal advance of a ribbon of typ Reversing device for the longitudinal advance of a ribbon of typ

1975-12-02

1977-02-08

Burr, Edgar S.

Textiles: fiber preparation

74 20, 197164, B41J 33512

Patent

active

040068110

ABSTRACT:
A reversing device for the longitudinal advance of a ribbon on type printers for the alternating drive of two reels by means of a feed shaft which is selectively drivingly connectable to one of the gears respectively connected to the reels for the ribbon. The drive from the respective winding-up reel to the respective unwinding reel is reversible by a feeler lever controlled by the ribbon coil, by a second lever adapted to be controlled by the feeler lever while being displaceably guided by an interengaging pivot-slot arrangement, and by an eccentric rotating in synchronism with the feed shaft. The eccentric is arranged on a stationarily journalled drive shaft continuously drivingly connected to the feed shaft. The displaceable second lever is designed as a pendulum lever displaceable about perpendicularly to the longitudinal axis of the feed shaft and is pivotal about parallelly to the longitudinal axis of the feed shaft. The pendulum lever comprises a pin engaged by the feeler lever for the longitudinal displacement thereof and also comprises two abutments which for purposes of reversing the transporting direction selectively cooperate with one of two abutments on the feed shaft for an axial displacement thereof.

REFERENCES:
patent: 1165546 (1915-12-01), Sholes
patent: 1439058 (1922-12-01), Baeseler
patent: 1702938 (1929-02-01), Garbell
patent: 1825705 (1931-10-01), Seidelinger
patent: 1950725 (1934-03-01), Garbell
patent: 2742132 (1956-04-01), Anderson
patent: 2978089 (1961-04-01), Dodge et al.

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