US1079325A - Proof-press. - Google Patents

Description

A. L. BLUE. moor PRESS.

APPLIUATION PILBD MAY 25, 1912.

Patented Nov. 25, 1913'.

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In ven tor:

A. L. BLE.

PROOF PRESS. APPLICATION FILI-2D MAY 25,` 1912. i1,07'9,: ",25 Patented Nov. 25, 19 13.

Attest: In Ven tot:

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A .RTHUR L. BLUE, OF NEW YORK, N. Y.

PROOF-PRESS.

Lea/ases.

To atl fwliom z' may concern: f Be it known that L'ARTHUR'L. Bram, a: citizen of the United States, residing 1n the! borough of Manhattan ofthe city of New York, in the county of New York, in the State of New York, have invented `certain new and useful Improvements in Proof- Presseaof which the following is a specification, reference being had to the accompanying drawings, which form a part hereof.-I

Pra-ctically all large printing oi'ices' arev equipped with proofpresses for the purpose Elli ^ supports the "bed-plate, even kroller,'the bedplates of such presses are heavy, shifted from place 'to of taking o5 galley and job proofs before type are locked lin the regular presses. Be-

cause of the desirability of keeping'the face of the type in a perfectly flat plane, at least in the line of pressure of the impression proof presses are usually made of heavy castings and the,` rest of the construction 1scorrespondingly heavy. Moreover it has been thought nec-- essary 'to provide rigid 'and consequently heavy supports for the impression roller, besides inakin'g the impression roller itself heavy. The consequence is that the'proof lcostly and not easilyplace as convenient use might suggest.

It is the object of this invention to provide a proof press which shall be light in Weight and easily portable and at the same time shall permit a satisfactory proof to be taken either from a galley or` job.

y In the improved press the usual heavy cast metal bed-plate is replaced by a light weight bed-plate which may bemade of Vany suitable material, such as sheet steel, and is supported upon suitable standards, and the frame is made to traverse the bed-plate having above the frame an impression roller. and below the frame a reaction or pressure roller which, moving in contact with the bottom of `the/bed-plate and in parallelism with the impression roller', while the distance between the two rollers is maintained,

though it may be somewhat yielding, and therefore the type in the line of printing with theirf faces `1n a `plane parallel with theaxis of the impression roller. The two rollers are preferably geared together and are actuated by a suitable crank on the axis ofone of the rollers, so .that the traverse ofthe printing frame is easily and quickly effected vwhile the desired relation of the two rollers is riseslightly above the maintained.

specification of Letters Patent. Patented NOV. 25, '1913. application inea ,May 25, i912. lserian No.

The invention ywill be more fully explained herelnafter with reference to the accompanying drawings in which it is illustrated and 1n which- Figure 1' is a top View of a press constructed in accordance 'with the invention. Fig. 2 is a View ofthe same in side elevation. Fig. 3 is a View ofthe same in longitudinal sectionon theplane indicated'by the line- 3-3 of Fig. 1. Fig. 4 is a View of the same in transverse section on the plane indicated by the line of Fig. 1 the rollers 'being shown inside elevation.

In the embodiment of the invent-ion illustra-ted in the dra-wings a bed-plate a, which may be comparatively thin and light in weight, is supported on a suitable base b by legs or standards c and d. The standards 'ai are preferably hinged to the bed-plate so that they may be turned up, as indicated by dotted vlines lin Fig. 2, to permit the removal of the printing frame, the legs being secured in normal position by convenient retaining devices, suchas the swing bolts indicated at d. On the longitudinal `edges of the bed -a arepformed or secured, as by 'screws a,shown in dotted lines in Fig. 3, rails or bearers a2, .which are preferably slightly less than 'type high, so that job type can be looked up directly on the bed-plate or type can be locked up in a galley supported on the bed-plate and leither ease the face of the type will bearers.

The printing frame comprises 4two end 90 plates or frames e,

cross rods fwhich unite the end plates and hold them in rigid relation, an impression roller g, and a reaction or pressure roller it. The reaction or pressure rollei` h preferably consists of a rubber or other y-ielding body h fixed on the shaft k2 which is mounted in fixed bearings in the end platesl or frames e. The impression roller g likewise consists of a rubber or other resilient body g fixed on a shaft g2 which is mounted in journal boxes g8. The journal boxes are mounted in vertical slots e of the end plates or frames and may be pressed down, with the impression roller g toward the pressure roller k, b

thumb screws'z' which are threaded in the upper ends of the end frames e and press upon the journal boxes through metal and yielding cushions ber. The shafts g2 and h2 preveferably have i-ntermeshing gears g4 and h3 fixed thereon, while one of the shafts, as g2 may also have plates e" 2, preferably of rub- 1-1'0 secured thereto a suitable crank handle 7c. To each end plate or frame e may be secured a bracket e3 adapted to lie near the bearers 2 and to prevent the frame from tiltlng 5 gown if the impression rollerg is raised or removed.

It Will now be understood that when the type have been placed on the bed-plate, either directly or in a galley and have been inked and the paper has been laid upon them, the crank la isI actuated and thereby the printing frame, through the frictional `contact of the pressure roller h against the underside of the bed-plate` and of the im pression roller g With the bearers, is caused to traverse the bed-plate longitudinally. WhenI the type are reached the pressure of the impression roller g is transferred from the bearers a2 to the type, which stand slightly higher than the bearers, and the movement of the printing frame is continued, the impression roller yielding suficiently to enable a proper proof impression to be secured. It will be observed that as thev line. of impression on the type face Ytravels from one end of the job or galley to the other, the type in the line of impression are supported in proper relation to the impression roller, with their'faces parallel With the horizontal plane of the impression roller, through the reaction or pressure rollerlyvhich supports the bed-plate across its entire Width, and that this result takes place even though the bed-plate is \not absolutely rigid but yields slightly with the Weight of the type or is slightly distorted from any other cause. The teeth of the gears gf and -IP are sulliei'ently long to permit the neeessaryyielding movement of 40 one roller with respect to the other or theA necessary) adjustment of one roller With respect to' the other. If it is necessary, at

any time, to remove the printing vframe from the bed-plate for the purpose of Washing or repair, the legs or standards d may be turned to permit such removal.

It Willbe understood that the invention is not limited to the precise details of construction and arrangement shown and described herein.

I claim as my invention 1. In a proof press, the combination of a yielding bed-plate to support the type, hinged means to support the bed-plate, a printing frame having a reaction or pressure roller having contact With the underfside of the plate and an impression roller above the bed-plate and horizontal guide brackets carried on the `trame in juXtaposition to the bed-plate, the rollers being mov- ,ableover the hinged supporting means to ermit the removal of the frame from the ed-plate.

2. In a proof press, the combination of a yielding bed-plate to support the type, longitudinal bearers less than type high secured on the upper face of the bed-plate, and adjacent the edges thereof, hinged means to support the bed-plate and a printing frame having a reaction or pressure roller for contact with the underside of the bed and an impression roller disposed on said bearers, the rollers being movable over the hinged supporting means to permit the removal of the frame from the bed-plate.

3. In a proof press the vcombinautiozn of a relatively thin and iieXible'bed-plate to support the `type, means to support the bedplate, a printing frame having a pressure roller having Contact with the under side of the plate and an impression roller above the bed plate, the rollers being mounted yieldably With respect to each other, the iiexible bed plate and yielding rollers compensating automatically for irregularities in the type as the line of impression changes thereby insuring a uniform impression throughout theproof.v f This specification signed and witnessed this 23d day of May A. D., 1912. ARTHUR L. BLUE.

Signed in the presence of- WV. B. GREELEY,

WoRTHrNe'roN CAMPBELL.

Copies of this patent may be obtainedfor tive cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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