US2207975A - Printer's chase - Google Patents

Description

July 16, 1940- 1.. F. DOURSON ET AL PRINTER S CHASE 0 0 3 J W s W u i1 nr/////////// 00 ll? mi fl n 6 a, A r If a hz wmJ a w v y m fl m 3 J ..i 2% m m 0 o a 2. fr )0. a & a a Z 1- 46 .w If 00 W/ 2; 3 ZZZ; ii M f &1 W /k v Patented July 16, 1940 PATENT OFFICE i 2,207,975 PRINTERS CHASE Leonard F. Dourson and Frank A. Kemen, Cincinnati, Ohio, assignors' of one-third to S. Rosenthal & 00., Inc., Cincinnati, Ohio, a cor-- poration of Ohio Application February 8, 1940, Serial No. 317,964

, 8 Claims.

Thisinvention relates to a printer's chase and it is one object of. the invention to provide a device of this character which is simple in construction, easy to operate, and of such construction that it eliminates devices previously found necessary when mounting a chase about a. block of type or the line used for printing. 'At the present time a form or jo is customarily handled in thefollowin'gmanner.v

' If plates are to be made of a form it is given to a compositor to lock-up. The compositor first secures a chase and places it about the form. He then measures it with a line gauge to ascertain its dimensions. Nonpareil slugs to give clearance between the type and bearers to the measurement desired are then procured. It is then measured for bearer material (Monotype or foundry rule which is type-high being used for bearers) and this material is procured and cut by a saw to the size needed. The string with which the form is tied up is then removed and the bearer material is placed around the form. Wood furniture is then used to fill out the space remaining between theform and the chase, leaving room for quoins on two sides which are used to tighten and hold the formin the chase. After the impression is made, the compositor must unlock the form, put the chase away, and put the quoins and Wood furniture away. I The bearer material is then either putaway or discarded, according to the rules of the particular printing plant. 'The form is then retied with string and is ready for filing.

When the improved chase is used to lock up a form, four adjustable bars are fitted around the form and locked. Nothing else is needed, not even the string -beingremoved. When the impression is made, the chase is unlocked and the type form which is still tied, as it was at the start, is ready to be filed.. The improved chase is type-high and adjustable to fit any size form with which it is to be used as a lock up for plate making. v I It vwill thus be seenthat an important object of the invention is to provide a chase which is of such formation that it eliminates many of the, steps previously found necessary and the materials used therefor. It eliminates untying and retying the form and also eliminates bearers and wood furniture together with the. material them. In addition, the improved chase is so formed that when it is disposed about a form and tightened an even squeeze will be exerted and the chase firmly secured about the form without danger of distorting the form by improper pressures being applied thereto,

Another object of the invention is to provide improved fasteners for detachably holding bars forming the chase in engagement with each other, a fastener being slidably carried by each bar and shiftable longitudinally thereof into position to engage in a head at the abutting end of another bar.

Another object of the invention is to provide the bars with companion strips constituting quoins and so mounted that they may be shifted to adjusted positionsin the bars through slots formed therein but prevented from slipping out of the slots and becoming detached from the bars.

Another object of the invention is to provide a key so formed that it may be employed-as means for actuating shafts for adjusting the strips or quoins and also employed as means for shifting the fasteners into and out of position to secure the-bars in engagement with each other.

Still another object of the invention resides in providing a device which is simple 'and'du'rable in construction, inexpensive to manufacture and one which will be very efficient in operation and application to use.

With these and numerous other objects in View, our invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims.

The invention is illustrated in the accompanying drawings wherein Fig. 1 is a plan view of the assembled chase. Fig. 21s a plan view of one of the bars forming the chase. I

Fig. 3 is a view taken longitudinally through the side bar with the strips of quoins in their retracted or normal position.

Fig. 4 is a view similar to Figure 3 showing the strips or quoins in an extended position.

Fig, 5 is a view looking at the outer side face of the bar.

Fig. 6 is a view looking at the inner side face of the bar.

the bar.

Fig. 8 is a sectional view taken longitudinally through the bar along the line 8-8 of Figure 4.

Fig. 9 is a sectional view upon an enlarged scale taken transversely through the bar along the line S of Figure 3.

Fig. 10 is a View similar to Figure 9 showing the strips or quoins in an extended position.

Fig. 11 is a transverse sectional .view taken along the line llll of Figure 2.

Fig. 12 is a side elevation of a fastener bar in engagement with another bar.

Fig. 16 is a sectional view taken transversely through a bar of a modified construction...

The improved chase or frame consists of a plurality of companion bars I and 2 which are disposed transversely of each other with the head 3 of each bar in abutting engagement with the inner side face of another bar where it is securely but removably held in engagement with the same in an adjusted position longitudinally thereof by a fastener 4 carriedby and shiftable along the bar from the unheaded end thereof. While the bars may be formed as unitary structures, as shown in Figure 16, the bars l have been shown each formed of four strips or sections 5. 6, I and 8 secured in face to face engagement with each other by screws 9 and also formed with openings through which pass pins ii). The outer strips 5 and E are formed with clutch teeth ll along their inner edge faces and the side extensions of these strips forming portions of the head 3 of the bar are also formed with teeth. it for interengagement with the teeth l i of a companion bar when the bars are assembled to form the frame or chase. By this arrangement the bars may be set in predetermined positions to form a square or oblong chase of such size that it will fit snugly about the set type or form which is to be locked in the chase as shown in Figure 1 where the form F is indicated by dot and dash lines.

These bars I have the confronting faces of their sections 8 and 9 formed with recesses form ing a slot 13 extending the full length of the bar and having an undercut inner portion It to receive the widened inner portion or base E5 of the fasteners i and prevent the fasteners from shifting transversely of the bars out of the slots. It will thus be seen that the fasteners may be shifted along the bars into the position toengage through the slot 56 formed in the heads 3 of the bars with their outer flanges ll overlapping side faces of the heads to firmly hold the headed ends of the bars in set positions against side faces of the bars which they abut. The slots I6 lead from outer ends of the heads and are formed by cutting away portions of the sections 8 of the bars. Since the fasteners hold the heads firmly against the inner side faces of adjacent bars and the teeth l2 of the heads have interfitting engagement with the teeth l I along inner side faces of the bars, the bars will be firmly held in assembled relation to each other and the interengaging teeth will prevent the heads from slipping longitudinally of the bars engaged thereby. It will thus be seen that the bars will form a square of oblong frame for fitting about a type bars 2 are also formed with teeth H and slots l3 having undercut inner vportions M to slidably mount the fasteners, but these bars each consist of two sections IB instead of four sections, the teeth l I being formed along inner side edge faces of these sections and the undercut grooves l3 being formed by registering recesses in the confronting surfaces of the sections. 7 When the bars are of solid formation, as shown in Figure 16 the undercut grooves are formed by cutting the bars from their inner side edge faces and undercutting inner portions of the grooves.

After the frame has been assembled and placed about the form F in enclosing relation thereto,

pressure must be applied to firmly clamp the form. Inview of the fact that the portions of the grooves [3 extending along side edge faces of the form are unobstructed, the string tied about the form to hold it together may engage in the grooves and, therefore, need not be removed when placing the frame about the form; order to apply pressure to the form and firmly clamp it, each bar I carries inner and outer pressure applying strips l9 and 20 which fit into grooves 2i extending longitudinally of the bars and opening through inner side faces thereof in spaced relation to opposite sides of the groove's l3. The grooves 20 are undercut along their inner portions, as shown at 22,'and inner por= tions of the strips l9 are flanged to engage in the under cut portions of the grooves and prevent outward movement of these strips while not 1m; terfering with longitudinal sliding thereof. Confronting edges of the strips l9 and 26 are cut to form cam surfaces 23 and 24, and from an inspection of Figures 3 and 4 it will be readily understood that when the inner strip is shifted longitudinally in one direction a cam action takes place and the outer strip 20 will be shifted transversely to an extended position in which it projects from the inner edge face of the bar carrying it. Slots 26 are formed transversely in the strips 28 and through the slots pass pins 20 to limit outward movement of the strips. Since the bars I are at right angles to each other and opposite the corresponding bars 2, the strips 20 will apply compressing force and cause the form F to'be firmlyclamped in the frame. Each inner .strip is formed substantially midway the length of its inner edge with a rack 25 meshing with teeth of a pinion 26 rotatably mounted in a cylindrical socket 2-! and held in place by a screw 28. {The pinion has a head at its upper end form'ed'with a fiat sided socket 29 to receive the stem 38 of a key by means of which turning movement is imparted to the pinion, This key has a thick cross head 31 constituting a handle for the key andin addition serving as a hammer head when the key is used for driving the fasteners into secur ing engagement with the fasteners 4. It should also be noted that at one end the cross head I631"? ries a pin 32 'of a diameter adapting-it to be engaged through the perforations 33 formed in ears M which project from the fasteners. Therefore, the key may be usedas means for withdrawing the fasteners when the bars are to be re-' leased and the frame taken apart. The bars may then be placed in side by side relation to each other and tied to hold them bundled and put away in a small space until again ne'e'd'ed. From the foregoing description of the construction 'of our improved device, the operation thereof and the method of applying the same to use, will be readily understood. It be seen I 73 that we have provided asimple, 'inexpensiifea'nd "effici'ent -means'for carrying out the objects of the-inv'ention' and while we have particularly de- 's'cribed' 'the elements best adapted to perform the functions set forth, it is obvious that various changesgin form, proportion and in the minor details of constructionmay be resorted to, without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described the invention, what is claimed is:

1. In a printers chase, a frame consisting of a plurality of bars each extending transversely of adjoining bars and. at one end formed with a head abutting the inner side face of an adjoining bar, said bars having teeth along their inner side faces and other teeth along side faces of their heads for interlocking engagement with side teeth of companion bars when the bars are assembled to form the frame, a fastener carried by each bar and projecting from the inner side face thereof for engagement with the head of an adjoining bar to hold the bars assembled and their teeth engaged with each other, pressure applying strips carried by certain of said bars along inner sides thereof, and means for shifting the pressure strips outwardly from inner sides thereof into position to engage and compress a type form. I

2. In a printers chase, a frame consisting of a. plurality of bars each extending transversely of adjoining bars and at one end formed with a head abutting the inner side face of an adjoining bar, the said heads being slotted longitudinally from their outer ends, interengaging means carried by the bars and their heads for holding the heads against movement longitudinally of bars engaged thereby, fasteners movably carried by said bars and projecting from inner sides thereof for engaging in the slots of the heads of companion bars and detachably holding the bars assembled, pressure applying means carried by certain of said bars, and actuating means for shifting the pressure applying means to an extended position for clamping engagement with a type form enclosed by the frame.

3. In a printing chase, a frame consisting of a plurality of bars extending transversely of each other, each bar having a head at one end projecting outwardly therefrom and slotted longitudinally from its outer end, a fastener carried by each. bar and projecting from the inner side face thereof and slidable longitudinally along the bar for engaging through the slot in the head of an adjoining bar to hold the bars assembled, and means carried by certain of said bars for applying pressure to a type form enclosed by the frame.

4. In a printing chase, a frame consisting of a plurality of bars extending transversely of each other, each bar having a head at one end projecting outwardly therefrom and slotted longitudinally from its outer end, a fastener carried by each bar and projecting from the inner side face thereof and slidable longitudinally 'along the bar for engaging through the slot in the head of an adjoining bar, said fasteners having flanges along their outer side edges for engaging the outer side edge faces of the heads along opposite sides of the slots therein to hold the bars assembled, and means carried by certain of said bars for applying pressure to a type form enclosed by the frame.

5. In a printing chase, a frame consisting of a plurality of bars extending transversely of each other, each bar having a head at one end projecting outwardly therefrom and slotted-longitudinally from its outer end, the inner, side iface of. each bar being formed with an undercut longitudinally extending slot, fasteners slidable in l-the. slots of said bars and having enlargedinner portions preventing outward displacement of the fasteners, flanges along outer side edges of said fasteners for overlapping side edge faces of the heads when the fasteners are engaged through slots thereof and detachably holding. the bars assembled, and pressure applying means carried by certain of said bars for applying locking pressure to a type form enclosed by the frame.

6. In a printers chase, a frame consisting of a plurality of bars extending transversely of each other and each having a head at one end in abutting engagement with the inner side face of an adjoining bar, confronting edge faces of the bars and the heads being provided with rows of teeth interengaged to prevent shifting of the heads longitudinally of the bars engaged thereby, fasteners carried by said bars for engaging said heads and detachably holding the bars assembled, certain of said bars being formed with longitudinally extending slots opening through inner side faces of the bars and having undercut inner portions, inner and outer pressure applying strips in said slots having confronting edge faces formed with companion cam surfaces, the inner strips having portions engaged in the undercut portions of the slots to prevent outward movement of the inner strips, rack teeth upon the inner strips, pinions rotatably mounted through the bars and meshing with the rack teeth to shift the inner'strips longitudinally when the pinions are turned, said cams shifting the outer strips outwardly when the inner strip is shifted longitudinally in one direction, and means for turning said pinions.

'7. In a printers chase, a frame consisting of a plurality of bars extending transversely of each other with one end of each bar abutting the inner side face of an adjoining bar, fasteners carried by said bars and shiftable along inner side faces thereof into position to engage abutting ends of adjoining bars and secure the bars in assembled relation to each other, certain of said bars having slots in their inner side faces, inner and outer strips in said slots having confronting faces formed with cam surfaces, racks carried by the inner strips, pinions rotatably mounted through the bars and meshing with said racks to shift the inner strips longitudinally and cause the cams to shift the outer strips transversely out of the slots to a pressure applying position when the pinions are turned, and meansfor turning said pinions.

8. In a printers chase, a frame consisting of a plurality of bars extending transversely of each other with one end of each bar abutting the inner side face of an adjoining bar, fasteners carried by said bars and shiftable along inner side faces thereof into position to engage abutting ends of adjoining bars and secure the bars in assembled relation to each other, certain of said bars having slots in their inner side faces, inner and outer strips in said slots having confronting faces formed with cam surfaces, racks carried by the inner strips, pinions rotatably.

pinions having sockets in their outer ends, ears extending fromsaid fasteners and formed with from one end of said cross head for engaging perforations, and a keyv having av stem at one through the perforations of the ears when using end for engaging in the sockets of said pinions the key as m n f r Wi h r w n e f eners and across head at its other end servingas a from securing engagement with ends of the bars.

striker for driving the fasteners into securing LEONARD F. DOURSON. engagement with said bars, and a pin extending FRANK A. KEMEN.

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