Patent GB-348274-A (GB)
Title: Improvements in and relating to machines for applying reinforcing strips to the pages of loose-leaf books, indexes and other sheets
IPC: B65H37/04
Filed: 1930-03-07
Abstract: 348,274. Affixing reinforcing strips to loose-leaf sheets &c. HESS, J., 2, Fann Street, Aldersgate Street, and MARTIN, F. R., 18, Laystall Street, Clerkenwell, both in London. March 7, 1930, No. 7361. [Class 73.] A machine for applying reinforcing strips to the pages of loose-leaf books and other sheets comprises a table hinged about one edge on which the sheet is placed with the edge to which the strip is to be applied projecting beyond the table, and means for depressing the table slightly about its hinges to bring the projecting edge into contact with the strip, a severed length of which is carried on a reciprocating slide, the sheet with the attached strip being then fed to delivery rolls. The machine is shown in plan and side elevation in Figs. 1 and 2 respectively. The sheet is placed, by hand, against adjustable stops on a table a supported on a frame d which is pivoted longitudinally of the machine, and is supported on guides e, f. The slide i on which the strip is laid is reciprocated from the position shown, in which the strip is fed thereto from a reel 31, to a position under the projecting edge of the sheet, where an adjustable projection k on the slide engages the table support d to move it, together with the slide, towards the delivery rolls l, m ; during this motion the sheet is depressed into contact with the strip by a pressing member g, and the sheet and strip are taken by the delivery rolls, the slide i being returned to its initial position. The projection k engages a catch n on the sheet support d during the initial part of its return movement, the catch being lowered out of engagement with the projection by a roller p thereon riding off a fixed cam q. The presser g, Fig. 23, is carried by rods v, w riding in guides x, y in a frame 1 and connected by a yoke 5 fitted with a spring-pressed plunger 6 projecting into a slot 7 in the machine frame 2 on which the frame 1 slides. The plunger engages a cam 11 arranged so that only on the forward movement of the frame 1 the presser is depressed. The frame 1 and presser are temporarily connected with the sheet support for movement therewith by a horizontal arm 17, Fig. 29, pivoted at one end to the sheet support d and connected at 20 with the frame 1, an abutment 24 being adapted for engagement with a spring-influenced detent 21. While the parts are thus locked, the presser g is depressed; the detent 21 is disengaged by the engagement of a fixed pin 26 on the guide f therewith. The strip reel 31 is carried on a verticallyreciprocating slide 33 and the strip is led over a roll 36, Fig. 2, to a feed-roll 38 mounted on a lever 41 and pressing the strip on to a plate 37. When the slide rises, a pawl 51 engages a toothed wheel 50 to feed the strip forward sufficiently for its end to be seized by the slide; depression of the slide effects the movement of the feed-roll 38 from the plate 37, by the lever 41 riding on the fixed cam 55, thus allowing the strip to be freely fed to the slide. The slide comprises a rigid base 64, Fig. 20, and depressible side portions 62, 63 forming a channel, and the end of the strip is seized by a spring- influenced finger 84 which is raised to allow the end of the strip presented by the slide 33 to be gripped by means of a detent 97 ; the detent is operated by connections to the treadle by which the forward movement of the slide i is initiated. When the slide has moved to its other end position, the finger 84 is moved aside by the engagement of a fixed stop with an arm 103, to allow the sheet to be depressed into engagement with the strips. The strip is coated with adhesive, or damped, while on the slide by means of a pivoted container 107, Fig. 34, which is provided with a valve rod and is pivotally carried on a member 128 having an expansion 135 normally resting on a pivoted support 136. As the slide passes, a pawl thereon engages a pin 136 on the support 136 and moves it aside, allowing the container to rest on the strip. To prevent any drips from the container, when in its inoperative position, fouling the machine, gutters 140, 141 are provided which are mounted on a pivoted support 145 and are moved aside simultaneously with the downward movement of the container. The parts are returned to the position shown by a pin on the rear end of the slide engaging a cam member 60 adjustably secured to the arm 161. In an alternative, for use with thick adhesive, a rotary brush, fed from a roller working in an open-sided container, is carried on a pivoted arm which is raised and lowered in a similar manner. The strip is cut by means of a spring-influenced blade 188, Fig. 32, working against the edge of the plate 37 on the slide 33, and mounted on a shaft 189 having an arm 190 with a pin 195 thereon engaging a slot in a member 193, also mounted on the slide ; the upward movement of the slide effects the raising of the blade, in which position the end of the arm 190 is engaged. by a sliding abutment 196 mounted in the slide. The abutment is raised to release the blade by a finger 197 operated from a shaft 202 controlled from the strip slide i. The reciprocations of the reel slide 33 for feeding the strip to the slide i are controlled by the latter, which, for this purpose, is provided with projections which operate a pair of connected cams to effect the rocking of a cam 346, Fig. 5. The latter, by means of a projection 349, operates the shaft 202 controlling the cutter, and a further projection 347 thereon actuates a spring-influenced member 348 to allow a spring- controlled pin 320 to effect a driving connection between a constantly-driven shaft 208 and a shaft 313 from which the reel slide is reciprocated by crank connections. The slide is reciprocated with a quick return movement by alternative trains of chain gearing driven through a pair of friction or toothed clutches on a shaft 228, the forward clutch being thrown into gear by the depression of a pedal 267 ; the slide at the end of its stroke effects the operation of the clutch gear to reverse its movement. The reverse gear is also operated by the engagement of the rod 284 by the operator's hand if inadvertently placed on the leading edge of the table a. The clutch gear is put into neutral position at the end of the return movement of the slide i by a linkage connected with the crank mechanism for operating the reel slide 33, the linkage effecting movement of the treadle. The movement of the slide i may be temporarily arrested during the cutting operation by the provision of a pivoted catch on the slide, which, on the forward movement of the slide, engages an adjustable stop. The stop is moved aside after arresting the slide by connections with the reciprocating mechanism for the reel slide.