British and Colonial Printer and Stationer . d table on to which thesheets are fed by tapes i. The sheet is drawn against a side gauge 57, Fig. 2, 10, and 14, bya reciprocating gripper comprising a jaw 35,pivoted on a pin 33 on a rack bar 27, and afixed jaw formed by a fiange 28 on the bar bar 27 is reciprocated in a guide channelformed in a bracket 26 which is secured to across bar 23 and is formed with bearings 15, 16supporting a rock shaft 11 on which is keyeda skew quadrant 31 for operating the bar bracket 26, to which the side gauge 57 issecured, is adjustable laterally by n
British and Colonial Printer and Stationer . d table on to which thesheets are fed by tapes i. The sheet is drawn against a side gauge 57, Fig. 2, 10, and 14, bya reciprocating gripper comprising a jaw 35,pivoted on a pin 33 on a rack bar 27, and afixed jaw formed by a fiange 28 on the bar bar 27 is reciprocated in a guide channelformed in a bracket 26 which is secured to across bar 23 and is formed with bearings 15, 16supporting a rock shaft 11 on which is keyeda skew quadrant 31 for operating the bar bracket 26, to which the side gauge 57 issecured, is adjustable laterally by nuts 18, 19mounted on a screwed extension 17 of thebearing 16 and engaging opposite sides of abracket 20 fixed to the cross bar 23. Theopening and closing movements of the gripperjaw 35 are controlled by a dog 40 pivoted onan arm 36 of the jaw and adapted to abutagainst a shoulder 41 on the arm 36 to openthe jaw when the dog 40strikes an adjustablestop 47 at the end of its outward stroke. Thejaw is held open during the inward stroke by ^mzM^. means of a roller 39 on the dog riding under acam bar 42 and at the commencement of thereturn stroke the dog is tripped by its engage-ment with the bar 42 to allow the jaw to beclosed by a spring 59 on the pin 33. The trip-ping of the dog 40 may be effected at the endof its inward stroke by providing a fixed lugto be engaged by the ower end of the sheet crimping device consists of a mem-ber 52 pivoted on a pin 51 on the bracket 26and provided with a flange 54 which, when itis in the position shown in dotted lines inFig. 14, depresses a part of the sheet belowthe plane of the remainder so that as thesheet is drawn towards the gauge 57, it iscrimped or warped to stiffen it, and its move-ment toward the gauge is retarded. Whenthe gripper is opened, the member 52 is liftedby the engagement of a roller carried by apin 48 on the gripper, with a flange 53 on the January 20, 1921 77 member 52. The member 52 may be held outof operation by a
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondon, bookyear192
