Abstract: The present invention provides a recording apparatus in which a recording medium is conveyed by a driven rotary member and a convey rotary member urged against the driven rotary member by a biasing means supported by a rockable support member, so that an image is recorded on the recording medium contacted with the driven rotary member by a recording means disposed at a downstream side of the convey rotary member. Wherein, when the convey rotary member is rotated in the recording medium conveying direction, the support member is shifted toward a direction for urging the convey rotary against the driven rotary member, by a rotational force of a rotation drive transmitting member of the convey rotary member, so that convey accuracy of the recording medium is improved and the good recording is performed.

Abstract: In a pad transfer printing process a doctor blade is in the form of a downwardly and rearwardly curving strip of spring steel whose lower free edge rides on the working surface of the cliche, thus wiping off excess ink prior to transferring ink from the cliche to the pad. The free edge is polished, and a downward force is applied whereby the strip is resiliently deformed by contact between the free edge and the working surface.

Abstract: A screen frame assembly for mounting a printing screen includes a rectangular screen frame proper having a rectangular opening, and screen anchor members removably secured to frame anchor members along the four sides of the frame opening and having bonding surfaces to be adhesively or otherwise bonded to the screen edges for securing the screen to the frame. The screen anchor members are separable from the frame anchor members to clean the screen anchor members for reuse and to replace screen anchor members which are damaged or otherwise unusable.

Abstract: A dot line printer provided with an ordinary dot density printing mode, a low dot density or draft printing mode and a high dot density printing mode. A hammer bank provided with a plurality of printing hammers is reciprocally movable in a shuttling direction for dot impressions when the hammer bank is moved through a printing region, and the moving direction of the hammer bank is reversed at a reversing region where a printing sheet is fed in a line to line direction. A shuttle cam is provided which is drivingly connected to the hammer bank. The shuttle cam has a cam profile capable of providing a cam lift characteristic approximately intermediate between a cam lift characteristics of the ordinary printing mode and that of the low dot density printing mode. A shuttling velocity of the hammer bank is changed in accordance with the selected printing mode and position of the hammer bank.

Abstract: A device for occluding a blood vessel comprising a helical metal coil having at least one fibrous element attached to its proximal end wherein the fibrous element(s) extends in a sinusoidal wave configuration, the loops of which extend about individual windings at spaced intervals along the axis of the coil.

Abstract: A method and apparatus for printing for which turret having a plurality of fountain and doctor blade assembly is translatably, indexably mounted adjacent a transfer roll.

Abstract: A cassette for a printing ribbon for typewriters comprises a casing accommodating a supply spool, a receiving spool and a brake and take up device which operates on a tube of the supply spool and on the ribbon which is unwound from the supply spool. The tube is rotatable on a sleeve projecting from the bottom of the casing. The brake and take up device comprises a shoe for applying a braking action to an internal surface of the tube. A wire spring has an intermediate portion which engages in a seat of coupling means of the shoe. In a first position the shoe is urged against the surface of the tube and brakes the supply spool. In a second position the shoe is spaced from the internal surface of the tube and the supply spool is free to rotate. The spring also performs the slack ribbon take-up function and for that purpose comprises an end having an L-shaped bent portion which in turn is engaged with the ribbon to regulate the tension and unwinding of the ribbon which is unwound from the supply spool.