US2935019A - Vertical proof press - Google Patents

Description

May 3, 1960 Filed Sept. 19, 1958 F. w. STANDIFORD VERTICAL PROOF PRESS 3 Sheets-Sheet 1 as l4 EE 25'25 i32 as as as q :5 if 1- 4 o. :2.

I l i..l 89 ISL INVENTOR. FRED w. S'IyDIFORD HIS ATTORNEY May 3, 1960 Filed Sept. 19, 1953 F. w. STAVNDIFORD 2,935,019 VERTICAL ROOF PRESS 3 Sheets-Sheet 2 F's l7 INVENTOR.

FRED W. ST NDIFORD ms ATTORNEY y 1960 F. w. STANDIFORD 2,935,019

VERTICAL PROOF PRESS Filed Sept. 19, 1958 a Sheets-Sheet 3 iiiiiiiiiiiilh FIG. l9

INVENTOR. FRED w. STANDIFORD HIS ATTORNEY 2,935,019 VERTICAL PROOF PRESS Fred W. Standiford, Salt Lake City, Utah Application September 19,1958, Serial No. 762,182 Claims. (Cl. 101-283) niedi rates Fatent ly varying the pressure which the impression plate is to that the operator physically transfer the chase from the cart to the bed of the printing press as would be the case with proof presses currently used.

In the past, many types of proof presses have been devised. There are no proof presses of which the inventor is aware which are vertical in operation, i.e.,

presses in which the impression plate descends vertically, upon suitable actuation, to take an impression from a type-containing printing form or chase. A vertical press when provided with an access opening for a printer's cart would be highly desirable and might easily be adapted for taking proofs directly from a chase-bearing dolly or cart. This is done in the presentinvention by enlarging the space between the railsv upon which theinking rollers travel so that the powered impression plate may travel through the rails to come in contact with the chase. Hence, the operator is not troubled to transfer the case from the cart to the press bed, but ratheris enabled to pull proofs directly from the chase while the latter is resting on the cart; further, spilling and misali nment of the type is not chanced, as would be the case were the operator required to transport the chase from the cart to the bed for a conventional press.

Accordingly, an object of the present invention is to provide a vertical proof press in which proofs may be pulled from a type-containing, chase or printing form without necessitating a physical transfer of the chase from its carrying cart.

, It is an additional object of the present invention to provide a vertical proof press which takes a load of rolled proof paper, the press being provided with knife means for simultaneously cutting or shearing the proof paper to a desired dimension at the time the impression is taken.

It is a still further object of the present invention to provide a vertical press which will be useful for taking galley proofs as well as newspaper-page proofs, and also, in addition, will be useful for taking mat impres- SlOIlS. 7

According to the present invention, a proof press is designed to exhibit vertical impression plate travel. The frame of the press is provided with an opening of suflicient size to accommodate the rolling therein of a chaseladen dolly or cart. Inking means are provided to ink apply to the form so that mat impressions necessitating pressures several times that required for pulling proofs may also be taken.

Additionally, galley proofs may be taken easily by use of the press of the present invention by simply using strip paper and depositing the galley trays on the printers cart.

The features of the present invention which are be lieved to be novel are set forth with particularity in the appended claims. organization and manner of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in connection with the accompanying drawings in which:

Figure 1 is a front elevation of the vertical proof press of the present invention illustrating the manner in which the chase cart (shown in phantom line) is positioned with in the frame of the press for taking proof impressions; for purposes of clarity, the activating mechanism associated with the inking rollers is not here shown.

Figure 2 is a right side elevation of the vertical printing press shown in Figure 1. v

Figure 3 is a plan view of the top plate used in the apparatus'of Figures 1 and 2.

Figure 4 is a plan view of the rectangular frame member employed.

Figure S'is a plan view of the impression plate used.

Figure 6 is a front elevation of the impression plate illustrated in Figure 5.

Figure 7 is a right side elevation of the impression plate shown in Figures 5 and 6.

Figure 8 is an elevation of the shearing knife used in conjunction with the impression plate.

Figure 9 is an elevation of one of the cap screws, having bearing shoulders, which is used to mount the shearing knife in Figure 8 to the impression plate shown in Figures 5 through 7. V

Figure 10 is a plan view of the rectangular support employed in the press to mount theimpression plate pressure cylinder;

' Figure 11 is a fragmentary view taken along the line 11---11 in Figure 1.

Figure 12 is a fragmentaryview taken along the line 12-12 in Figure 1.

Figure 13 is a fragmentary view taken along the line 1313 in Figure 2 illustrating the activating mechanism associated with the inking system.

Figure 14 is a fragmentary 'view taken along the line 14-14 illustrating in an elevation the actuating mechanism shown in Figure 13.

Figure 15 is a fragmentary exploded view taken along the line 1515 in Figure 2 illustrating one Way in which the inking'rails may be springingly mounted to the press frame.

Figure 16 is a schematic of a DC. electrical system which may be used in conjunction with the actuating mechanism of the press.

Figure 17 is a schematic of an A0. electrical system which, as an alternative, may be used to control the said actuating mechanism.

Figures'18 and 19 are fragmentary, side elevations and plan views, respectively, of the upper portion of the press structure, in amodified form of the invention, wherein the actuating cylinder is spring-mounted to the press The present invention, both as to itsframework in order to permit the impression plate affixed to the piston thereof to adjust, in its contact with the type in the printing chase, with the level of the type.

I In Figures 1 and. 2, frame of the proof press consists of four lower tube members 11, and four upper tube members 12; these several'tube membersbeing mounted as shown to top plate 13, rectangular frame member 14,

and C-configured base frame 15. The several tube members are each threaded at both ends and are threaded into top plate 13, member 14, and base frame as indicated at the lower right hand corner of Figure 1, with the frame being made rigid by the provision of 'a plurality of looking nuts 16. By such an arrangement, it will be noted that the spacing between rectangular frame member 14- and top plate 13, and also frame 14 with respect to base frame 15 is subject to variable adjustment by virtue of the locking nuts 16 employed. Such spacing adjustment may be necessary in the case of tube members 11 to allow for variations in the heighth of the chase carts employed in a particular printing establishment. The pressure cylinder 17 actuating the impression plate of the pre'ss'fis 'mounted to rectangular support member 18' (see Figure 10) by a plurality of bolts or other suitable attachments (not shown). The rectangular support 18 itself is affixed as by welding to rectangular frame member 14. As is illustrated in Figure 10, the rectangular support member for the pressure cylinder is provided with a central aperture. This aperture is provided to accommodate the piston 19 of the pressure cylinder 17 (see Figure l). The piston 19 is supplied with a flange 20 which can be bolted to mounting plate 21 (see Figure 5) of impression plate 22. A series of books 23 are threaded into top plate 13 and impression plate 22 to accommodate the positioning of return springs 24 shown in'fragmentary view in Figures land 2. p

Rails 25 accommodating inking rollers 26 extend widthwise with respect to the press frame, and may be springingly mounted to the frame in the manner illustrated in Figure 15. Referring for the moment to Figure 15, a representative rail 25 is provided with an outwardly extending pin 27. This pin 27 is inserted into bracket 27',

' the latter being mounted in an interior region of each of the tubular members 11. Slide member 28, having L shaped vertical cross section, is supplied 'each of the several brackets 27'. Each of the several slide members 28 contacts the pin of the pins respective inking rail, Spring base 29 of bracket 27' provides a base support for a compression spring 30, the latter being disposed between the base 29 and slide member 28.

Turning again to Figures 1 and 2, it is seen that supported between the two inking rails 25 is an inking fountain 31, the latter including a conventional fountain and ink supply roller. A ratchet wheel 33 is axially mounted on the ink supply roller 32, and the former is driven by a pawl 34 mounted to the rear one of the inking rollers 26. The two inking rollers 26 constitute-the rollers of a conventional inking truck which may include two, end, T-configured mounts 35. The axis mounts of the two inking rollers 26 may be aflixed directly to the base ends of mounts 35 (not shown). Each of two opposite slide tubes 36in Figure 1 has a clevis connection with T-configured mount 35 as illustrated in Figure 12. Pin 37 joins the two'members 35' and 36' together in pivotalj connection.

Onthe lower left hand side of the frame 10 is a roll of proof paper 38. the latter being mounted to end brackets 39 bv means of central shaft 40. The two end brackets 39, illustrated in Figure 2 are welded or riveted to the two, right-side tube members 11 in Figure 1 (see also Figure 2). l

In Figures 1 and 2 is also shown a base plate 41, this base plate being constituted by ahardened' metal such as stainless steel and being afiis'ed to O-configuredframe member 15 as by means of welds, rivets. or other suit-' 4 r of base plate 41 is beveled or tapered so that chase cart 43 (bearing chase 44) may be easily rolled onto base plate 41 so that the chase will be disposed directly in between and slightly underneath the two inking roller rails 25. Accordingly, frame 10 exhibits beneath the impression plate 22 an accessible, free, open, vertical area 16 of unrestricted character and sufficient extension so as to be capable of receiving a chase-laden, printers cart 43 to be rolled therein for temporary disposition underneath the impression plate and beneath the roller tracks, for impression-taking. V

Reference should not be made to Figures 5 through 7, in which is illustrated the'con'struction' of impression plate 22. First of all, the width of impression plate 22 is designed to be less than the spacing between the inking rails 25 in Figure 1 so that, upon the downward travel of impression plate 22, the impression plate will pass in between the two inking rails 25 to come in contact with the chase 44 disposed upon chase cart 43." Impression plate 22. may be cast from aluminum so as to be light in weight; however, it may be provided with a mounting plate 21 (this being bolted'to impression plate 22 )so as to obtain a more even pressure distribution of the piston 19 of the pressure cylinder 17.

On the right hand side of the impression plate 22 it will be noted that a pair of leaf springs 45 are mounted. These leaf springs may be riveted, welded, or otherwise aflixed to impression plate 22 as shown in Figure 5. In

Figure 7 it will be noted that the action ends of the leaf springs 45' are curved slightly upwardly. This is for the purpose of coming in contact solidly with the upper edge of knife 46, illustrated in Figure 8 as having an inclined, beveled cutting edge 47. The contact of knife 46 with the two leaf springs 45 is best illustrated in Figure 6. Knife 46 is provided with three slotted apertures 48 which correspond to the three threaded bores 49 in Figure 7. The slotted apertures. in' the knife may be of similar or ofvarying dimensions as shown. The cap screws 50 in Figure 9 have bearing shoulders 51 which come in contact with the knife 46 in the region of apertures 48 when the cap screws 50 are threaded into the threaded bores 49 of impression plate 22.

The purpose of the knife attached to the impression plate is to providethe cutting or shearing of the proof paper 38 when the latter has been pulled over the chase and the impression plate is caused.v to descend down to accomplish the impression function. The leaf springs and slotted apertures of the knife provide a safety feature so that in the event the chase, serving as the cutter bar, is misaligned beyond deadline decal indicator 25', the knife will not be damaged, but rather would be forced upwardly to a point of safety.

Oneadditional word about impression plate 22; it is necessary for proper impression taking that it include a cushioning layer 52, such as a relatively thick rubber sheet vulcanized, glued, or otherwise afiixed to the under surface.

. always be in alignment in its to and fro travel..

able means. The central portion 42 o'f the forward'e ge 7 Figures I3 and 14 illustrate one of' the two identical halves' of the actuating mechanism associated with the ink rollers 26'. Each of'the two mechanism halves are mounted, respectively, atone of the two points A on the rectangular frame member 14 shown in Figure 2. Cvlinder 55 is provided with piston 56 having a spring return bias within (not shown). Cylinder 55 may be mounted to rectangular frame member 14 in a clevis connection and secured in the same by means of pivot pin 57. The end of the piston rod 56 is pivotally coupled to lever 58 by means of pivot pin 59. Lever 58 has an outwardly extending shaft 60 welded to its base (see sesame Figure 14). Bushing 61 is seated as by a press fit in aperture 62 in shaft 60, and accommodates the slidable disposition therewithin of ink truck shaft 36 (see Figure 1). Shaft 60 itself passes through pillow-back bearing 63 (mounted by conventional attachments to rectangular support 18 at diametrically opposite points Bsee Figures 1 and and is secured in position by means of lock nut 64, the latter being threaded onto the threaded end position 65 thereof.

In Figure 16 is shown one type of control system for the press. Air supply 66 is coupled through conventional pressure regulator 67 (having indicator 67' and control knob 87) to a three-way solenoid valve 68, having a neutral bleed-off position and provided with a one winding reverse current, opposite polarity solenoid winding. Connected to the valve as shown are the impression plate pressure cylinder 17 and also inking mechanism cylinders 55 (see Figures 13 and 14). The electrical system associated with'soleno'id valve 68 is as follows. Power supply 69 in Figure 16 is of direct current type. Its positive lead is selectively coupled through switch elements 70 and 71 to solenoid terminal 72, and through switch elements 73 and 73' isselectively coupled through switch elements 74 and 75 to solenoid terminal 76. Correspondingly, the negative return lead of the power supply is selectively coupled through switch elements 77 and 78 to terminal 72 and also, via switch elements 79 and 80 is selectively coupled through switch elements 81 and 82 to solenoid terminal 76. It is to be noted in connection with spring biased push between switches 83 and 84 that each of the upper two switch contact sets is normally open, whereas each lower switch contact set is normally closed. When either of the switches is depressed, the reversed electrical condition will exist. The reason for the inclusion of each of the lower contact sets of the switches is to insure that when one push button switch is depressed and made operative, the remaining switch, even though inadvertently depressed, will be inoperative as to the effect upon the solenoid valve.

Assume now that depression of the upper switch 83 will advance the solenoid valve in a counter-clockwise direction. In such event, the compressed air from the air supply and regulator will be directed into the two inking mechanism activating cylinders 55 which will advance the inking rollers forwardly. The ultimate forward progress of the inking rollers may be controlled by the design of the air cylinders themselves. Once the rollers have traveled their maximum distance, the operator need only release the pressure from switch 83 to return the solenoid to its neutral, bleed-01f position, in which event the air from the cylinders 55 will bleed-off into the outer atmosphere, permitting the internal return springs of the two cylinders 55 to return the inking rollers to their initial disposition. When push button 84 is depressed, then the solenoid advances in a clockwise direction so as to permit the compressed air to enter cylinder 17 so as to perform the impression operation associated with impression plate 22. Once the impression has been completed, then the operator need only release the pressure from this switch 84 so as to allow the air in cylinder 17 to bleed-off into the atmosphere by means of solenoid 68 returning 7 to its neutral position and with the springs 24 returning the impression plate to its original upward position. The.

reason, of course, why the two switches 83 and 84 activate the solenoid differently is because electrical current of opposite polarity reaches the solenoid in each of the two alternate situations.

Figure 17 illustrates an A.C. electrical system which may operate the air system of Figure 16 in a similar manner. In the case of Figure 17, for example, when switch 85 is depressed, one of the solenoid windings is energized and the remaining (lower) solenoid circuit is rendered inactive by virtue of the opening of the ganged switch contact 85'. The reverse situation occurs when switch 86 is depressed. In the case of. Figure 17, the

'6 three-way solenoid valve 68' has two A.C. solenoid windings which are alternately energized.

The two electrical systems illustrated in Figures 16 and 17 are of extremely simplified types, and are merely illustrative of two systems which might be employed in the present invention. Other conventional systems wherein the operator need not maintain the push buttons in depressed condition during their respective cycles might reasonably be employed.

Where it is desired that the press be adapted for both pulling proofs and also taking mat impressions, then the regulator 67 (of conventional type) may be adjusted by pressure control 87 so that the pressure can be set, for

example, for 100 p.s.i. for proof-work and 300-400 p.s.i. for mat impressions.

A final word about the proof paper feed of the press and also about an optional self-leveling feature which may be employed to accommodate the impression plate. Shown in Figure 2 in particular is a pair of friction rollers 88 mounted in a conventional manner in between two of the tubular members 11 on the right-hand side of the press. These rollers frictionally retain the paper 89 from roll 38. The paper is advanced over the type form by the operator pulling the paper with his left hand while turning crank 90 with his right (the latter being shaft coupled to one of the friction rollers). When the paper 89 is cut during the impression cycle, the friction rollers retain the newly cut end of the paper in proximity with the inking rails for convenience in taking a subsequent proof.

I As to the impression plate, pressure cylinder 17 may be spring mounted to the rectangular support 18 so that, relatively speaking, the cylinder 17, its piston and the impression plate attached thereto will self-adjust to the level of the type-containing chase. This is illustrated in the structure shown in Figures 18 and 19 wherein it is shown that the cylinder 17 includes a mounting flange 91 which bolts to the rectangular support member 18 of the press framework by bolts 92 and nuts 93 (through accommodating apertures A), with compression springs 94 disposed between the bolt heads H and the upper surface 91 of flange 91. Thus, where the level of the work in the chase deviates from the normal surface level of impression plate 22, the impression plate upon contact with the chase will re-orient-its level, by virtue of the action of springs 94, with that of the chase so that the pressure of the impression plate upon the type-laden chase will be uniform throughout its entire contact with the work in the chase.

While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects, and, therefore, the aim in the appended claims is to cover all such changes and modificatio'ns as fall within the true spirit and scope of this invention.

I claim:

1. A vertical proof press for taking proofs directly from a type-containing printing chase when the latter is disposed on top of a printers chase cart, said vertical proof press including, in combination: a frame; a horizontally disposed, vertically displaceable impression plate; actuatable means mounted to said frame and physically coupled to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame, the space between said tracks being suflicient for admitting said impressionplate therethrough during the impression plates travel cycle, said impression plate traveling therethrough during its travel cycle, the height of said tracks being sutficient to permit said cart and chase to be rolled thereunder for pulling proofs from said chase, and said frame exhibiting beneath said impression- .plate an accessible, free, open, vertical area of unre-jstricted character and suflicient extension so as to be capable of receiving. a chase-laden, printers cart to be rolled therein for temporary disposition underneath said impression plate and beneath said inking roller tracks, for impression-taking; inking roller means including at least one inking roller mounted. upon said tracks; and means for. selectively actuating said inking roller means to ad- Vance andwithdraw said inking roller along said tracks for inking said type-containing chase.

2. A vertical proof press for taking proofs directly from a type-containing printing chase when the latter is disposed on top of: a printers chase cart, said vertical proof press including in combination: a frame; a floor plate of hardened metal affixed to said frame; a horizontally disposed, vertically displaceable impression plate; actuatable means mounted to said frame and physically couple to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame,

. 8 knife having an inclined cutting edge; means mounting said shearing knife to that side edge of saidimpressiqn plate which is. nearest said roll of paper when mounted for use; cutterbar means cooperable with said knife duri g h downward. travel thereof; actuatable .means mounted to said frame and physicallycoupled to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame, the space between said tracks being sufiicient for admitting said impression plate therethrough during the impression plates travel cycle, said impression plate traveling theres through during its travel cycle, the height of said tracks being sufiicient to permit said cart and chase to be rolled thereunder-for pulling proofs from. said chase, and said frame exhibiting beneath said impression plate an accessible, free, open, vertical area of unrestricted character the space between said tracks being sufficient for admitting said impression plate therethrough during the impression plates travel cycle, said impression plate traveling therethrough during its travel cycle, the height of said tracks above said floor plate being suificient to permit said cart and chase to be rolled immediately underneath said tracks for pulling proofs from said chase, and said frame exhibiting beneath said impression plate an accessible, free, open, vertical area of unrestricted character and sufficient extension so as to be capable, of receiving a chase-laden, printers cart to be rolled therein for temporary disposition underneath said impression plate and beneath said inking roller tracks, for impressiontaking; inking roller means including at least one inking roller mounted upon said tracks; and means for selectively actuating said inking roller means to advance and withdraw said inking roller along said tracks for inking said type-containing chase.

3. A vertical proof press for taking proofs directly from a type-containing printing chase when the latter is disposed on top of a printers chase cart, said vertical I proof press including, in combination: a frame; a floor plate of hardened metal atfixed to said frame and having a forward, beveled edge; a horizontally disposed, vertically displaceable impression plate; actuatable means mounted to said frame and physically coupled to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame, the space between said tracks being sufficient for admitting said impression plate therethrough during the impression plates travel cycle, said impression plate traveling therethrough during its travel cycle, the height of said tracks above said floor plate being sufiicient to permit said cart and chase to be rolled immediately underneath said tracks for pulling proofs from said chase, and said frame exhibiting beneath said impression plate an accessible, free, open, vertical area of unrestricted character and suflicient extension so as to be capable of receiving a chase-laden, printers cart to be rolled therein for temporary disposition underneath said-impression plate and beneath said inking roller tracks, forimpression-taking; inking roller means including at least one inking roller mounted upon said tracks; and means for selectively actuating said ink.- ing roller means to advance and withdraw said inking roller along said tracks for inking said typeeontaining chase.

4. A vertical proof press for taking proofs directly from a type-containing printing chase when the latter is disposed on top of a printers chase cart, said vertical proof press including, in combination: a frame; means for mounting a roll of proof paper in proximity with said frame; a horizontally disposed, vertically displaceable impression plate; a downwardly directed,- unitary shearing .75

and sufficient extension so as to be capable of receiving a chase-laden, printers cart to be rolled therein for temporary disposition underneath said impression plate and beneath said inking roller tracks, for impression-taking; inking roller means including at least one inking roller mounted upon said tracks; and means for selectively actuating said inking roller means to advance and withdraw said inking roller along said tracks for inking said type-containing chase.

5. Apparatus according to claim 4 in which said side edge of said impression plate is provided a plurality of threaded bores, the cutting edge of said knife'is longitudinally tapered, said knife is provided with a plurality of vertically slotted apertures corresponding in number and position with said bores, and in which said knife mounting means comprises: a plurality of cap screws having bearing shoulders, said knife being mounted on said shoulders via said slotted apertures, and said cap screws being threaded into said bores; and a plurality of leaf springs atfixed. to said impression plate and pressing down on the top of said knife. I

. 6. Apparatus according to claim 4 in which said knife mounting means includes spring means thrusting downwardly on said knife.

7. Apparatus according to claim 4 in which said cutter bar means is constituted by said chase.

8. Apparatus according to claim. 7 in which said press is provided with'a dead-line indicating means for aiding the positioning of said cart and chase beneath said rails so as to position the same proximately adjacent to, but not in' interference with the travel of said knife.

9. A vertical proof press for taking proofs and mats directly from a type-containing printing chase when the latter is disposed on top of a printers chase cart, said. vertical proofpress including, in. combination: a frame; a horizontally disposed, vertically displaceable impression plate; actuatable means mounted. to said frame and physically coupled to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame, the space between said tracks being sufficient for admitting said impression plate therethrough during the impression piates travel cycle, said impression plate traveling therethrough during its travel cycle, the height of said tracks being sufiicient to permit said cart and chase. to be rolled thereunder for pulling proofs from said chase, and said frame exhibiting beneath said impression plate an accessible, free, open, vertical area of unrestricted character and sufiicient extension so as to be capable of receiving a chase-laden, printers cart to be rolled therein for temporary disposition underneath said impression plate and beneath said inking roller tracks, for impression-taking; inking roller means including atleast one inking roller. mounted upon said tracks; means for se lectively actuating said inking roller means to advance and withdraw said inking roller along said tracks for 9 inking said type-containing chase; and means for discrete 1y varying the pressure of contact of said impression plate with said chase in accordance with the discrete requirements of proof and mat impressions.

10. A vertical proof press for taking proofs directly from a type-containing printing chase when the latter is disposed on top of a printers chase cart, said vertical proof press including, in combination: a frame; a horizontally disposed, vertically displaceable impression plate; actuatable, self-leveling means including an actuating cylinder springingly mounted to said frame at a plurality of points and 'a piston physically coupled to said impression plate for selectively advancing downwardly and withdrawing upwardly said impression plate within said frame; a pair of horizontally disposed, parallel, inking roller tracks mounted within said frame, the space between said tracks being sufficient for admitting said impression plate therethrough during the impression plates travel cycle, said impression plate traveling therethrough during its travel cycle, the height of said tracks being sufficient to permit said cart and chase to be rolled thereunder for pulling proofs from said chase; inking roller means including at least one inking roller mounted upon said tracks, and said frame exhibiting beneath said impression plate an accessible, free, open, vertical area for impression-taking; and means for selectively actuat ing said inking roller means to advance and withdraw said inking roller along said tracks for inking said typecontaining chase.

References Cited in the file of this patent UNITED STATES PATENTS 1,315 Schnebly Sept. 7, 1893 521,438 Gary et al June 12,1894 1,002,125 Brandt Aug. 29, 1911 1,008,798 Drummond Nov. 14, 1911 1,026,055 Shniedewend May 14, 1912 1,487,444 Deegan Mar. 18, 1924 1,489,805 Wilden Apr. 8, 1924 1,863,165 Persons June 14, 1932' 1,990,597 Freeman Feb. 12, 1935 2,004,202 Horton June 11, 1935 2,082,396 Hill June 1, 1937 2,664,159 Geiler Dec. 29, 1953

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