Patent GB-402809-A (GB)
Title: Improvements in type line composing and casting machines
IPC: B41B11/38
Filed: 1932-06-04
Abstract: 402,809. Type-bar-making machines. INTERTYPE CORPORATION, 360, Furman Street, Brooklyn, New York, U.S.A.-(Assignees of Sperry, S. E. ; 18847, Mangim Avenue, Hollis, Long Island, New York, U.S.A.) June 4, 1932, No. 15875. Convention date, Sept. 11, 1931. [Class 100 (iii).] Assembling and clamping matrices.- Relates to apparatus for quadding or filling out short lines in machines of the kind described in Specification 14582/90, [Class 100, Printing, Letterpress &c.]. (1) The vice-jaws are moved relatively to each other, so as to confine the matrix line between them, by a jawmoving device the action of which is so controlled as to relieve the line from pressure before or during justification, and means are provided to force the jaw or jaws against the line after such interruption of the pressure, in order to clamp the matrix line. The right-hand jaw 14, Fig. 5, is moved towards the left-hand jaw 15 and into yielding contact with the line by a lever 29, Fig. 4, which is connected through a lever 26, a spring rod 21, and a link 17 to an extension 16 of the jaw. The upper end of the link 17 is connected to an arm 18, which is pivoted on the machine frame. The operating-lever 29 has a yoke-shaped end 32 and is actuated by a roller 37 carried on the cam-shaft 35 in such a manner that, after the jaw has been moved up to the line, the roller passes out of engagement with the lever 29, to relieve the pressure on the line during justification. Further rotation of the cam shaft moves the lever 29 in the opposite direction, so as to restore the jaw to its right-hand position after the casting. The jaw is normally latched in its right-hand position by a hook-member, which is disengaged during the descent of the first elevator. When the jaw is moved to the left to clamp the line, it is retained in the closed position by a series of toothed pawls 51, Fig. 6, of slightly different lengths, which engage teeth on the jaw extension 16. The pawls are normally held out of action, but are permitted to engage the jaw when the first elevator descends. To enable a line containing no spacebands to be tightly clamped, the pawls are pivoted on an eccentric sleeve, which can be rocked by means of a link 57 and a lever 58. A stud 60 on the lever 58 is engaged by a block 62 on the justification bar 64 as it rises, and the pawls are thereby driven forwards to cause the jaw to clamp the line. The arrest of the justification bar prevents the operation of the usual pumpstop mechanism, such as that described in Specification 312,219, [Class 100 (iii), Type making &c.], and permits the casting of the line. When matrix lines of full length are being composed, the quadding-mechanism may be locked out of action by the insertion of a bolt through a hole in the link 17. Alternatively, the mechanism may be left in action, and any small advance of the jaw 14, which might occur under the action of the pawls 51, is prevented by a plate 69, which is attached to the jaw, and holds the pawls out of operation. (2) When a short line is to be centralized on the slug, both of the jaws 14, 15 are moved towards each other through an equal distance. This is effected by toothed bars 82, 83, Fig. 11, attached one to each jaw and adapted to be moved in opposite directions by a pin 85 on a hand-operated shaft, which is movable endwise to enable the pinion to be brought into and out of gear. The toothed bar 82 is adjustably secured to the jaw 14, to facilitate exact centring of the line. The position of the left-hand jaw in accordance with the length of the line is determined in known manner by an adjustable abutment 79, which also serves to impart the slight clamping movement given to the jaw during justification. In the case of a short line which is to be centralized, the jaw 15 is moved away from the abutment 79, and other means are therefore provided for clamping the jaw. These means comprise a set of pawls 93, similar to the pawls 51 employed for clamping the right-hand jaw, and adapted to engage a toothed extension of the jaw. The pawls are eccentrically mounted, and are operated from a vertical rod 98, which normally gives the clamping movement to the jaw through the abutment 79. The pawls 93, like the pawls 51, are brought into action by the descent of the first elevator. (3) To avoid the necessity for manual setting of the left-hand finger of the line delivery-slide, that conveys the line from the assembler to the first elevator, one wall of the assembler is provided with a yielding rail 4, shown in plan in Fig. 2, which is pivoted at one end 5, and is pressed into the matrix channel at the other end by a spring. The left-hand end matrix of the line is thereby pressed towards the opposite wall of the assembler, which is provided with a strip 10 of leather &c. to give an additional gripping- surface. (4) To prevent twisting of the matrices as they enter the first elevator, the elevator is provided with a spring-pressed rail 72, Fig. 9, which bears against the upper ears of the matrices. Specification 402,841 also is referred to.