US1073865A - Feed-gage for printing-presses. - Google Patents

Description

B. MoGINTY.

FEED GAGE FOR PRINTING PRBSSFS.

APPLICATION IILED MAR. 1, 1912.

1,073,865, Patented Sept. 23, 1913.

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B; MoGINTY. FEED GAGE FOB PRINTING PBESSES.

' APPLICATION FILED MAB. 1, 1912.

1,073,865. Patented Sept. 23, 1913.

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BERNARD MCGINTY, OF DOYLESTOWN, PENNSYLVANIA, ASSIGNOR TO PRINTERS SPECIALTIES COMPANY, A CORPORATION 013 DELAWARE.

FEED-GAGE FOR PBINTING-PRESSES.

Specification of Letters Patent.

Patented Sept. 23, 191

Application filed March 1, 1912. Serial No. 680,787.

.l.)oylestown, in the county of Bucks and EBtate of Pennsylvania, have invented certain new and useful Improvements in Feed- Gages for Printing-Presses, of which the following is a specification.

My in' provements relate 'to means for positioning upon the tympan the sheets to be printed which are held thereon in such position, and my leading object is to provide simple and inexpensive means whereby such gages can be set readily and the sheets automatically placed in the desired position with uniform accijiracy while avoiding the usual interference with printing close to the edges of the sheets.

The characteristic features of my improvements are disclosed in the following description and the accompanying drawings in illustration thereof.

In the drawings, Figure 1 is a plan view of a tympan having my improvements in gages applied thereto; Fig. 2 is a sectional view taken on the line 2-2. of Fig. 1; Fig. 3 isa' perspective view of the cam with its supporting block for shifting the side gage; Fig. i is a plan view of the inner section of the side gage with a sectional view of means for securing it to the tympan bail; Fig. 5 is a sectional view taken on the line 5-5 of Fig. 4; Fig. 6 is a perspective view of the side gage; Fig. 7 a top plan view of a section ofthe same with the adjustable bean ing member thereon; Fig. 8 is an enlarged sectional view taken transversely through the adjustable bearing member of the side gage; Fig. 9 is a side elevation of a bottom gage with its connections shown in section; Fig. 10 is a top plan view of a bottom gage and its connections shown partly in section; and Fig. 11 is a perspective view of a boti tom gage.

The mechanism, as illustrated in the drawings; comprises the usual tympan 1' having'tho bail'2 with the bearings 3 thereon in combinijit on with the gripper bar 4 havingth'e'journals 5 engaged in the bearings and the .c ripper shaft 6 connected by a bolt 7 in adjustable relation to the grip per bar which has a longitudinal slot 4 through which the bolt passes.

In accordance with my improvements, at

block 8, having the tongues 53 and 8" engagcd in the grooves 2 and 2 :iorming guides in the bail 2, is providial with the cam surface S, the socket 8", the screw hole 8, therecess 8, and the slot 8". The side gage. arm 9 is provided with the bifurcations 1 S) which rest on the blockon opposite sides i ot its socket 8", the recess 9" which registers :with the recess 8, the flange 5) which engages; an end of the block and the flange t)" which is engaged in the. slot 8. A washer 10 is engaged to the block bythe screw ll (which passes thcrethrough into the hole 8") and clamps the bi'lt'urcations S) thereto. The washer .has the hub 10 which is drawn into the socket 8" and the eccentric pin or stud 10'. The latter can be drawn through the recesses 9 and 8, to fix the parts 8 and 9 to the bail E2, or turned through 180 degrees so as to clear the block while clamping the gage thereto and permitting these parts free mo\ 'enient on the bail 2. A block 12 is set in the desired position on the bail 2 bymeans of a screw 12. A. spring 1.3, disposed between them, acts upon the block 8 to thrust it from the block '12. The gage arm 5) makes a slight angle with a. line drawn at right angles to the bail guides and a gage clip I l, adjustable on the arm 9, is provided with the hearing 14: which is in a plane at right angles to the bail This clip Il-Jlcomprises the lugs or flanges 14-" and H which emln'ace the edges of the arm 9, through which and the bearing 14' on the lug 14- passes a spring is) acting against the bar to hold the clip in frictional engagement thereto. lt wlll be understood that by slipping the clip 'l-lalong the arm 9 the bearing H is slnil'tcd transversely and consequently a nice lateral adjustment of the sheet to be printed can be obtained readily without moving the arm. l

The bar 41: has the shoe 16 connected adjustably thereto by means of a. block 17. The block has a tongue 17 which its in the slot 4 of the bar. The bar, block and shoe are fixed together by the bolt 18 which passes through them, the shoe being held firmly by the downwardly extending flanges 16 which engage the block. This shoe, formed by hemling sheet metal, is provided with a downwardly bent too 16" 'ljori'ning a cam having an inclined surface which engages the like sin-face of the am' 8 when t li the tympan 1 rises in the operation of carrying to the type the sheet to be printed. The result of the engagement is to shift the block 8 and arm against the action of the spring 13, by which the clip lt is caused to act through its bearing 14 on the adjacent edge of the sheet a onthe tympan, automatically adjusting such sheet tothe desired position with avoidance of the usual amount of care and time necessary in manually placing such sheets and preventing the inaccuracies which commonly obtain in such manual adj ustments. The sheet, which is thus shifted laterally, has its bottom edge supported by the gage fingers 19, made of sheet metal, having the rearwardly extending bifurcations 19 for engaging them in the desired position, the forward downwardly extending flanges 19 which rest upon the tympan for the purpose of providing a broad bearing for the bottom edge of the sheet to be printed, the aperture 19 for the passage of the narrow upwardly turned tongue 20, and the notches 19 for the passage of the clasps 20 which frict-ionally engage the body of the finger to permit the tongue to be set in the desired position or wholly detached. Blocks 21, provided with the tongues 21 and 21 engaging the guide grooves 2 and 2 of the bail 2, have the guide fingers 19 fixed thereto, with the faces of the flanges 19 parallel to the guide grooves, by the washers 22 having the hubs 22 which lie between the bifurcations 19 and extend into sockets 18 and the screws 28 which pass through the washers into the blocks 21.

It will be understood that the blocks 21 can be slipped along the bail 2 and, by loosening the screws 23, the fingers 19 can be adjusted longitudinally to bring the bear ing faces of the flanges 19 into registration with a mark in the line which it is desired that the lower edge of the paper shall occupy on the tympan, whereupon the fingers are clamped to their blocks and the latter are moved along the bail until the fingers are in the desired positions. When new a sheet of paper is placed on the tympan with its lower edge resting upon the flanges 19 under the tongues 20 (which guide and hold the sheets) and a side edge under the upturned projecting end 15, of the spring 15, such sheet is adjusted to its final and correct position by the lateral movement of the gage arm 9 and the clip 14 due to the engagement of the cam 8 with the cam 16 in the operation which brings the gripper shaft 6 into engagement with the tympan. Owing to the narrow character of the parts 15 and 20, they will lie between lines of type so that printing close to the edges of the sheet can be effected.

Having described my invention, 1 claim:

1. A feed gage for printing presses comprising, in combination with a tympan, a

laterally movable gage arm adjustable along said tympan, and pivotally mounted oscillating mechanism comprising an adjustable member for operating said gage arm, said arm and member having engaging cam surfaces whereby the oscillation of said member moves said arm.

2. A feed gage for printing presses comprising the combination with a tympan having guiding means, a gage finger connected with said guiding means, a laterally" movable gage arm connected with said guiding means and forming an angle of more than ninety degrees therewith, and a clip adjustable on said arm and havlng a part disposed at a right angle to said guiding-1 means, of means whereby said arm is shifted laterally.

8. A feed gage prising, in combination with a bar and a tympan connected so that one is adapted to 7 rock relatively to the other, guiding means disposed along a side of said tympan between the body thereof and'said bar, mechanism comprising a gage arm connected with said guiding means, and a cam fixed on said bar whereby said mechanism is actuated and said arm moved laterally.

a. A feed gage for printing presses comprising, in combination with a bar and a tympan connected so that one can rock rela tively to the other, said tympan having guiding means disposed between the body thereof and said bar, a gage finger, means whereby said finger is connected to said guiding means, a gage arm, means whereby said arm is connected to said guiding means, a cam fixed to said bar whereby said arm is moved laterally, and means comprising a spring whereby said arm is restored to its initial position. Y

5. A. feed gage for printing presses comprising, in combination with a tympan having a bail provided with guiding means and a bar pivotally connected to said bail, a cam fixed to said bar, a cam block movable along said guiding means by said cam first named, a guide arm fixed to said block, and

a bearing device movable on said arm, said arm being inclined so that in the movement of said device it is shifted laterally relatively to said tympan.

' 6. A feed gage for printing presses comprising, in combination with a tympanhav-- 7. A feed gage for printing presses com--' prising, in combination with a t-ympan having guidmg means, a block movable along said guldlng means, a notched gagefinger for printing presses com fixed to said block and having a downmy name [his 23rd (lay of February, 19.12, wnrdly exteudrng flange adapted to rest on in the preseuve 01 the suhserlhmg \\lt'Il0SS(--J.

said tylnpun, and a tongue engaged on said BERNARD MUGINTY. finger by a clasp adapted to he slipped over \Vitnesses: 5 said finger through the notch therein. J03. G. DENNY, J12,

In witness whereof I have hereunto set Rum. R. .Kn'renl-zn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

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