Patent GB-190623508-A (GB)
Title: Improvements in Linotype Machines.
Inventor: POLLEN ARTHUR HUNGERFORD
Filed: 1906-10-23
Granted: 1907-07-11
Abstract: 23,508. Pollen, A. H. Oct. 23. Linotype machines.-Relates to details of the assembling-mechanism and the line-delivery carriage or shifter of linotype machines. The back A<1>, Fig. 1, of the assembling-mechanism is extended to provide a longer guide for the assembler slide j, and is furnished below the belt H with an horizontal pivot lug a<20> for the holder a<21> of the glass cover-plate g<2>, and on a downward extension with a pivot lug a<23> for a bar a<24> serving as a buffer for the space-bars. The plate g<2> is retained by a clip a<22>. The bar a<24> is moved by any suitable means into the position shown in dotted lines as the elevator I moves towards the shifter. The slide j is held in any position, against the action of its spring a<26>, by a cam brake a<28> pivoted on the back A<1>. The brake a<28> is held in position by a spring, and is disengaged from the slide j when the elevator I rises by engagement of a finger a<30> on the bar a<24> against a finger a<29> on the brake. In order to vary the limit of movement of the slide j for lines of different lengths, a fixed stop a<31> is provided on the slides, and an adjustable stop a<33> is provided on a rack a<32>. A pawl lever a<34> holds the stop a<33> in adjusted position along the rack a<32> and its lower end moves over a scale a<37>. Another scale a<38> is provided on the slide j and shows the exact shortage in the line being composed. In order to be able to compose tight line, a supplementary device is provided, which allows of an increase of a unit or half a unit without resetting the stop, and consists of one or two thin strips a<39> pivoted as levers on the stop a<33>. The stop a<33> is preferably formed on a sleeve surrounding the rack a<32>, and the alarm bell a<35> is secured on a projection of the sleeve, and is sounded by a lever a<36> pivoted on the sleeve and operated by the stop a<31>. The shifter-fingers L', L are, respectively, fast on a slide l<20> and adjustable on a toothed rod l<21> fast to the slide l<20>. The top of the finger L terminates in an eye l<39> fitting over a sleeve l<22>, which is capable of sliding on the rod l<21> and turning in the eye l<33>. The sleeve l<22> is provided with a head l<23> against which the eye l<33> is held by a spring l<24>, and the finger L is prevented from rocking on the sleeve by the engagement of an arm l<32> in a groove l<41> in the slide l<20>. A segmental pawl l<25> in a recess in the head l<13> co-operates with the teeth of the rod l<21>, under the action of a spring l<17>. The pawl l<25> is free to slide up and down in the recess, and is disengaged by turning the sleeve through a right-angle, the pawl being provided with a camsurface l<26> co-operating with the teeth of the rod l<21>. A handle l<28> is provided on the sleeve, and a scale l<29> is provided on the slide l<20>. In order to prevent damage to the finger L in case of obstruction, the cushioning-spring l<24> is provided, and the pawl l<25> is automatically disengaged by means of a lever l<30>, pivoted in a recess in the sleeve and extending into a cavity l<31> in the eye l<33>, the end of the lever being formed with an incline l<37> for engagement against a shoulder on the eye. In order to obtain register of the finger L and the assembler finger, Fig. 1, either finger is provided with a set-screw a<40>.