US1839292A - Feed board for printing presses - Google Patents

Description

Jan; 5, 1932. E. A. BARTEL 1,839,292

FEED BOARD F O R PRINTING PRESSES Filed May 8, 1930 2 Sheets-Sheet 1- I N VEN TOR.

ATTORNEY" I 1932- E. A. BARTEL I 1,839,292

FEED BOARD FOR PRINTING PRESSES Filed May 8, 1930 2 Sheets'Shee,t 2 v 5. Z3 34/ 3g 50 Z K i D INVENTOR.

Eng Zebert /I Bartel Patented Jan. 5, 1932 NET E PA'rNT OFFICE ENGELIBERT A. BARTEL, OF BROOKLYN, NEW YORK, ASSIGNOR TO P-W DEVICE COR- IPQR ATION, OF IBEOQKLYN, NEW YORK, A. CORPORATION OF NEWf YORK FEED BOARD FOR PRINTING PRESSES Original application filed February 11, 1927, Serial No. 167,457. Divided and this application. filed May 8,

' 1930. Serial No. 450,666.

This invention relates in general to feed boards for printing presses, and more especially to printing press feed boards used for intaglio printing.

This application constitutes a division of my co-pending application, Serial No. 167,457, filed February 11, 1927.. I

The invention still further contemplates the provision of sheet metal members adjustably secured to the feed board for regulating the size of opening in the feed board through which the impression die operates.

The invention also contemplates the pro 7 vision of a flexible support for the card, such support consisting of metal sheets, the yieldability of which support will aid in lifting the work from the die after an impression has been taken to protect the work from possible smudging due to motion of the work relative to the die asthe work is released from the die. 1

These and other features, capabilities and advantages of the invention will appear from the subj oined detail description of one specific embodiment thereof, illustrated in the accompanving drawings, in which i Figure 1 is a plan view showing the feed board and associated elements for determining the position of the sheet edge engaging members after the trial impression has been made;

Fig. 2 is a plan view similar to Fig. 1, having removed therefrom the trial impression sheet. the work and two metal sheets,'for determining the size of opening of the feed board;

Fig. 3 is a front elevation of the feed board; and

Fig. 4 is a detached elevation of one of the members for anchoring the sheet edge enmembers in place.

In the embodiment shown, there is illustrated a feed board F, preferably consisting of a light metal such as aluminum or the like, and having a lower rectangular supporting member 1 and an upper sheet 2, the edges of which extend beyond the supporting member 1, as clearly indicated in Fig. 3.

As shown in Fig. 2, the upper sheet 2 has two openings 3 and 4 extending therethrough,

and three elongated slots 5, 6, and 7. The

opening 3 has a rectangular portion R and I an extension E extending from its lower right hand edge. The portion R is formed to permit the impression die to pass therethrough into engagement with the work supported on the feed board, and the extension E is provided to permit the operator to-pass his finger into the same and engage the work to remove the same from the feedboard after an impression has been received. The extension E may be used for both large letter sheets and short letter sheets, envelopes, cards, and the like, although especially provided to be used for engaging short letter sheets, envelopes and cards.

The opening 4 is especially provided to permit the operator to pass his finger into the same to engage the lower right hand corner of large letter sheets. 7

The slots 5,6, and 7 are of the same general conformation, that is, provided with an elongated slot portion 8 and enlarged openings 9 and 10 at the ends thereof, the enlarged openings 9 and 10 being preferably round, as illustrated, and communicating with the slot portion 8. In the present instance, the slots 5 and 6 are parallel with one another, the slot 6 being longer than the slot 5 and nearer the lower edge or near side of the feed board F, both slots5 and 6 being also preferably parallel to the near side of the feed board F. The slot 7 in the present instance, extends at right angles to the'slots 5 and 6, and is disposed parallel to and adjacent to the right hand edge of the feed board F;

The portion R of the opening 3 is, of course, large enough to accommodate the average largest impression dies. It has been found in practice that sometimes one or more edges of the impression die have clinging thereto ink that was not properly removed when the impression die was wiped preparatory to forming an impression. In such cases, unless provision is made to protect the sheet of work from such ink containingiedge, there wilhof course, betransferredto the sheet of Work such ink. In the present instance, provision is made to prevent: the transfer of ink from the edges of the impression dies. This provision consists primarily of a plurality of metal sheets, preferably composed of planet hardened steel. Two of such sheets 11 and 12 are comparatively elongated and are provided with securing means, preferably the spring clips 13 and 14 illustrated. These clips 13 and 14, clearly illustrated in Fig. 3, in the present instance, engage the left hand edge of the sheet 2 with the body portions of the sheets 11 and 12 extending over the upper face of the sheet 2. The sheets 11 and 12 will, of course, be positioned relative to one another and to the portion R of the opening 3 to cover the up er and lower edges of the impression die. ince in the act of wiping, the upper and lower edges of the impression die are those on which the ink is more likely to cling than on the lateral edges of the im pression die, the average printer frequently only uses the sheets 11 and 12. However,

'in case of a very high class printing job, where exceeding care should be taken, the lateral edges can be protected in a similar manner. To this end, the present invention provided the sheets 15 and 16, see Fig. 1, which are similarly provided with spring clips 17 and 18 respectively, as illustrated. In the present instance, the sheets 15 and 16 are attached to the plate 2 by having the clips 17 and 18 engage the upper edge of the plate 2. The sheets 15 and 16, by means of the clips 17 and 18, can of course be conveniently adjusted to extend over the lateral edges of the impression die to be used. In the present instance, the sheet 15, as illustrated in Fig. 1, extends over the sheets 11 and 12, and the sheet 16 extends under the sheets 11 and 12. This is of course left to the operator, and is a matter of choice. The arrangement illustrated, however, has the advantage that since the sheet of work as a rule is passed into the printing position from the upper left hand corner in a downward right hand direction, the sheet 15 would cover the upper edge of the sheet 12 and thus prevent the sheet from being accidentally obstructed by such edge while passing into printing position. Similarly, when the sheet 16 is located under the sheets 11 and 12, the left hand edge of the sheet 16 will be less likely to obstruct the movement of the sheet of work into position than if the sheet 16 Were located on top of the sheets 11 and 12.

Inorder to facilitate determining the location of the sheet of work in proper relation to the impression of the die, the novice now to be described has been provided. This device consists in the main of a sheet 19 of transparent material, preferably transparent celluloid, which likewise is provided with a spring clip 20. In the present instance, the transparent sheet 19 is secured to the upper edge of the plate 2 by means of the clip 20 so that the sheet 19 extends over the portion R of the opening 3. In order to fix the position of the sheet 19, the sheet 19 is preferably provided with two pins 21 and 22 which extend inwardly to register with the recesses 23 and 2 1 formed in the plate When the sheet 19 is so positioned, it is ready to receive a trial impression from the impression die. When such trial impression 25 has been received on the sheet 19, a trial sheet of work Wis placed beneath the same, and when its proper position has been determined by visualizing the impression 25 on the trial impression sheet 19 relative to the sheet of work W, the sheet of work W is temporarily attached to the celluloid sheet 19 by the spring clips 26 and 27, whereupon the guides are positioned in the manner now to be described.

When the sheet of work l/V is rectangular in contour, as is generally the case, a three point contact of course would be sufficient to determine the location of the sheet of work. For this reason, in the present instance, three guides are provided, although any greater number may be used as desired depending upon the shape of the sheet of work.

The guides consist essentially of three rods 28, 29 and 30, each substantially identical with one another. Each of the rods, as an instance the rod 28, has an engagementblock 31 secured to the end of a flexible member 32, preferably spring steel round stock, which member 32, in the present instance is secured to a piece of square drill rod 33. The rods 28 and 29, in the present instance, are secured to extend parallel with one another and vertically to the slots 5 and 6, while the rod 30 is secured to extend parallel to the slots 5 and 6 and vertically to the slot 7.

When a long sheet of work W is used, the lower slot 6 is preferably used to anchor the rods 28 and 29 therein to determine the position of the lower edge of the sheet of work W. In the present instance, see Fig. 1 where a short piece of work, a card, is illustrated, the upper slot 5 is used to anchor the rods 28 and 29 in place. The slot 7 is used to anchor the rod 30 in place, the block 31 of which defining the position of the right hand edge of the sheet of work V. The means for anchoring the rods 28 and 29 in the slot 5 are substantially identical. The anchoring means 34, see Fig. 4;, consists essentially of a cylindrical member 35 having two parallel recesses 36 and 37 extending parallel to one another and to the face of the cylindrical member 35. Above the recesses 36 and 37, and extending at right angles to such recesses, there is provided an opening 38 extending diametrically through the cylindrical member 35 and in communication with the internally threaded opening 39, extending down axially from the upper end of the cylindrical member 35. The threaded opening 39 receives the threaded portion of the set screw 40. The anchoring members 34: are positioned in the slots 5, 6, and 7, by being initially introduced through the enlarged rounded ends of such slots 9 or 10, and thereupon the recesses 36 and 37 positioned to engage the edges of the slots 5, 6 and 7'.

With particular reference to Fig. 4, the

recesses 36 and 37 of the anchoring members 34: of the rods 28 and 29, are positioned to register with the edges of the slot 5, and slid along until they are substantially in line with the portion R of the opening 3. The anchoring member 34: of the rod 30 is similarly introduced into the slot 7, with its recesses 36 and 37 registering with the edges of the slot 7 and the anchoring member then moved along the slot 7 until it is positioned opposite the portion R of the opening 3 and preferably adjacent to the lower edge thereof, as indicated in Fig. 1. The rods 28, 29 and 30, if not already introduced into the anchoring members 34L,'may then be slid into the anchoring members34 with their blocks 31 extending toward the portion R of the opening 3.

Afterthe sheet of work W has been temporarily anchored by the clips '26 and 27, as illustrated in Fig. 1, the rods 28 and 29 are moved up until they engage the lower edge of the sheet of work'W, whereupon the setscrew 10 is manipulated to tightly anchor the rods 28 and 29 in such position. Similarly, the rod 30 will be moved into position so that its block 31 engages the right hand edge of the sheet of work W, and thereupon its set screw 10 is manipulated to engage the rod 30 and securely anchor it in position. By reference to Fig. 3, it will be noted that the flexible member 32 is bowed downward toward the plate 2. In view thereof, when the set screw 10 is screwed down, the rods 28, 29 and 30 will tend to straighten out the curve in the flexible portion 32, thereby tightly anchoring the blocks 31 in engagement with the surface beneath the same. The openings 38, as indicated in Fig. 1, pref erably afford sufiicient clearance for the rods 28, 29 and 30, so that the same can be freely moved in the cylindrical portions 35 when the screws 40 are loosened, and in turn when the screws 40 are loosened they also permit the blocks 31 to lightly engage the surfaces from beneath.

As illustrated in Fig. 1, the metal sheet 12 also serves as a support for the blocks 31, 31, when a short sheet of work, such as the card N is used, it being obvious that without such support 12 the blocks 31 would extend into the opening 3. Similarly, the sheet 16 will serve as a support for the block 31 of the rod 30 when a narrow piece of work is used.

After the rods 28, 29 and 30 are so locked in position, the sheet of celluloid 19 with its thereto attached sheet of work l/V may be removed, and the feed board is then prepared to receive the work for the printing ob. In

theprinting operation, the piece of work W is preferably fed down from an upper left hand position downwardly in a right hand direction, so that its lower edge and right hand edge engage the blocks 31 of the rods 28, 29and 30. Afterthe impression has been taken, the lower right hand'corner of the sheet of workis generally engaged to remove the piece of work,l/V in a right handdirection. Vvhen the metal sheet 16 is not in use, the extension E forms a clearance along the right hand edge of the piece of work W, :sothat the fingerof the operator may extend into the same and thus convenientlyengage the right hand edge of the piece of work Wand remove it therefrom after the impression has been-received. On the other hand, when a long piece of work is used, such as a standard letter size sheet, a portion of the right hand edge will extend across the opening 4, in which case the opening 4 will serve to permit the operators finger to pass into the same and engage. the right hand edge of the sheet 'to'remove it after the impression has been received.

It isobvious that various changes and modifications may be made to the details of'construction without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

1. The combination with a feed board havan opening therein for the operation of the impression die and having a flange along its edge, of a plurality of supporting metal 9 sheets, and spring clips formed on the edgesv of said sheets to engage the flange of said feed board, said supporting sheets serving to extend across the paths of movement of the edges of the impression die and being adjustably mounted by said clips to facilitate positioning such supporting sheets to accommodate various sizes of impression dies.

2. The combination with a feed board having an opening therein for the operation of the impression die, of avplurality, of clear ances in said feed board adjacent to said first mentioned opening to permit the-fingers of the operator to pass into said clearances to engage the work preparatory. to removing same from the feed board.

3.. The combination with a feed board having an opening therein for the operation of the impression die and having a flangealong its left hand edge, of two supporting metal sheets, and a spring clip formed on one end of each ofsaid sheets to engage saidfiange to permit said sheets to extend across the face of said feed boardto cross the paths of movement of the upper and lower edges of the impression die, said sheets being adjustably mounted on said feed board by means of said clips to facilitate positioning such supporting sheets to accommodate various vsizes of impresslon dles.

' 4. The combination with a feed board having an opening therein for the operation of the impression die and having a flange along its left band edge and its upper edge, of four supporting metal sheets, and a spring clip formed on one end of each of said sheets, two of said sheets having their clips engage the left flange of said board to permit the sheets to extend across the face of said board to cross the paths of movement of the upper and lower edges of the impression die, the other two of said sheets having their clips engage the upper flange of said board to permit said sheets to extend across the face of said board to cross the paths of movement of the lateral edges of the impression die, said sheets being adjustably mounted on said feed board by means of said clips to facilitate positioning such supporting sheets to accommodate various sizes of impression dies.

5. The combination With a feed board having an opening therein for the operation of the impression die and having a flange along its edge, of a plurality of supporting sheets composed of planet hardened steel, and clips formed on the edges of said sheets to engage the flange of said sheets to engage the flange of said feed board, said supporting sheets serving to extend across the paths of movement of the edges of the impression die and being adjustably mounted by said clips to facilitate positioning such supporting sheets to accommodate various sizes of impression dies.

6. The combination With a feed board composed of sheet metal having an opening therein to accommodate the impression of the impressiondie, there being a plurality of slots in said board, guide means adjustably mounted in said slots to determine the location of the sheets of Work relative to the feed board during the printing operation, and

supporting sheets of metal secured to said feed board to cross the paths of movement of the edges of the impression die and form supporting surfaces for said guide means, said guide means having flexible portions intimately to engage the adjacent supporting sheets and thus be anchored in said feed board against displacement.

7. The combination With a feed board having an opening therein for the operation of the impression die, of a clearance in said feed board forming a lateral extension from said opening to permit the finger of the operator to pass into said clearance to engage the Work preparatory to removing the same from the board.

ENGELBERT A. BARTEL.

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