US1896156A

US1896156A - Apparatus for making holding devices for printing members

Info

Publication number: US1896156A
Application number: US452092A
Authority: US
Inventors: Richard A Bond
Original assignee: MULTIGRAPH CO
Current assignee: MULTIGRAPH Co
Priority date: 1930-05-13
Filing date: 1930-05-13
Publication date: 1933-02-07
Anticipated expiration: 1950-02-07

Description

Feb. 7, 1933. R. A. BOND 1,896,156

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 1950 10 Sheets-Sheet 1 Tleri gl-wvani oz $51, 79%; (5 4W Man/ Feb. 7, 1933. R. A. BOND 1,896,156

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 19:50 10 Sheets-Sheet 2 WMJ Q @757 abtozmqa R. A. BOND APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Feb. 7, 1933.

Filed May 13, 1930 10 Sheets-Sheet R. A. BOND Feb. 7, 1933.

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS 1o Sheets-Sheet 4 Filed May 15, 1930 WM 5, mm

cad/25%! RA. BOND Filed May 13, 1930 APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS n M WMEE 4 Mg m T W m Feb. 7, 1933.

dttmmq Feb. 7, 1933. R. A. BOND I 1,896,156-

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 1930 10 Sheets-Sheet 6 f I If I J) II l l N; i x

- i M Z7/ M4A 5; A56 M4 A56 M5 w/ /4.6' [45 158 '7 #7 f ,0 A 2 W 160 '7 152 9 /47 M A k 7 v l 4 l I I I I 1/ A f Mo 149 Y 3mm 162 H w fin 2 w I m4, a. AM? #Znbk r92;

Feb. 7, 1933. R. A. BOND 1,896,

APPARATUS FOR MAKING'HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 1930 I0 Sheets-Sheet 7 4 7 /.92 m; DA 04 52 away Feb. 7, 1933; R. A. BOND 1,896,156

APPARATUS FOR MAKING HOLDING DEVICE FOR PRINTING MEMBERS Filed May 13, 1950 10 Sheets-Sheet 8 220 24/ Z22) arm wanton Feb. 7, 1933. BOND 1,896,156

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 1930 lo Shets-Sheet 9 I 7 W I 2242 220 zzo /&. J 20 m1, 39/6, MHJLK Jed/a Feb. 7, 1933. R A BOND 1,896,156

APPARATUS FOR MAKING HOLDING DEVICES FOR PRINTING MEMBERS Filed May 13, 1930 10 Sheets-Sheet 10 I WMM 1Q. 734/ wf'nb/r Patented Feb. 7, 1933 7/ UNITED STATES PATENT OFFICE RICHARD A. BOND, OI CHAGRIN FALLS, OHIO,.ASSIGNOR, BY MESNE ASSIGNMENTS, TO

MULTIGRAPHCOMPANY, or WILMINGTON, DELAWARE, A CORPORATION or DELA- WARE.

APPARATUS FOR MAKING HOLDING DEVICES PRINTING MEMBERS Application filed May 13, 1930. Serial No. 452,092.

This invention relates to an apparatus for forming address plates and is especially adapted to form address plates which will be suitable for ready mounting in a print- '55 ing machine and adapted to print addresses either alone, as in addressing envelopes, or r in conjunction with other matter,as in producing circulars. The embodiment illustrated is especially adapted for form address plates which may be readily used in rotary printing machines, such as the Multigraph. The address plate is of the type having a holding member of metal with upstanding outwardly extending projections on which printing strips are mounted. Such an address plate is shown, described and claimed in Patent No. 1,628,630, granted to Henry C. Osborn and assigned to my assignee.

The general object of this inventionas to provide an effective apparatus for forming a holder for rintingmembers, and more particularly a older for printing strips. This holder with its strips may be used on either a rotary machine or an oscillating arm machine, when provided with suitably shaped platen members. I Another object is to provide an apparatus for forming a holding member of sheet'metal, having upstanding outwardly extending projections on which suitable printing strips may be mounted, and wherein all burrs are removed from the body of the holder; and the projections made uniform and so shaped as to readily receive and retain the printing strips. j

A further object is the provision of an apparatus for forming a holding member of sheet metal, wherein the body of the member is arcuate and has upstanding laterally extending projections of a uniform height and alignment to facilitate the mounting of embossed printing strips thereon.

Another object is the provision of an apparatus which will form individual holding members from a continuous roll or strip of material, and which will make upstanding projections on the members and provide each member with a bead or strengthening portion.

Another object is to provide an apparatus 'for forming holding members having upthat embossed printing strips may be readily retained thereon.

Other objects of the invention, and features which contribute to the efliciency of opera,-

tionand facilitate quantity production and economy in manufacture, will become more apparent from the following description, referring to the, accompanying drawings, and the essential and novel teatureswill beset forthin the claims.

In the drawings, Fig. 1 is a vertical longi- I tudinal centrally located section through the portion of the apparatus which forms the projections on the holding members and severs them into individual units from a continuous strip or roll of material; Fig. 2 is a hori- I zontal section and is indicated by the line 2 2 on Fig. 1; Fig. 3 isa front elevation of the apparatus which shapes and trims the holding members, portions of the apparatus being broken away; Fig. 4 is a horizontal section, taken through the shaping and trimming mechanism, and is indicated by the line 44 on Fig. 3; Fig. 5 is a vertical section and is indicated by the line 55 on Fig. 4; Fig. 6 is a plan, on an enlarged scale, of a portion of the feeding mechanism shown in Fig. 4; Fig. 7 is a longitudinal vertical section as .indicated by the line 7-7 on Fig. 6; Fig. 8 is a transverse section as indicated by the line 88 on Fig. 6,; Fig. 9 is a section similar to Fig. 8, but illustrating some of the parts in a different position; Fig. 10 isa transverse sectionas indicated by the line -1010 on Fig. i

position; Fig. 15 is a horizontal section illustrating'the forming rolls and is indicated by the line 15'15 on Fig-16; Fig. 16 is a vertical transverse section illustrating one pair of forming rolls; Fig. 17 is a vertical transverse section taken through the trimming unit and is indicated by the line 1717 on Fig. Fig. 18 is a horizontal section illustrating the 5 trimming unit in plan and is indicated by the line 1818 on Fig. 17; Fig. 19 is a transverse vertical section taken through the trimming unit and is indicated by the line 19-19 on Fig. 18; Fig. 20 is a vertical longitudinal sec- 0 tion through the trimming unit and is indicated by the line 2020 on Fig. 18; Fig. 21 is a perspective of one of the cutters, which trims the burrs from the projections and from the plate; Fig. 22 is a perspective view, illustrating the holding members, after the projections have been formed and the member sheared from the supply of material; Fig. 23 is a transverse vertical section through a holding member, and some of the projections 0 thereof as shown in Fi 22, and is indicated by the line 23-28 on Fig. 22; Fig. 242 is a transverse section through a holding member after it has been formed by the first pair of forming dies; Fig. 25 is a transverse section illustrating the member after it has been formed by the second pair of forming dies; Fig. 26 is an enlarged fragmentary section of a portion of Fig. 25, and illustrates the burrs which result from the punching operation; 0 Fig. 27 is an enlarged fragmentary section through a holding member and illustrates the method of removing the burrs therefrom, and the manner of trimming the edges of the projections; Fig. 28 is a fragmentary transverse 5 section through a portion of the holding members and is similar to Fig. 26, but illustrates the completed unit; Fig. 29 is a perspective view of a holding member in its completed form; Fig. 30 is a fragmentary trans- 0 verse section through a portion of a holding member and illustrates a printing strip mounted thereon; Fig. 31 is a perspective view of a printing strip with which the holder illustrated is adapted for use; Fig. 32

5 is an electrical diagram and illustrates the manner in which the mechanism is controlled. This invention contemplates the forming of a holder for printing members from a continuous strip or roll of material. A portion 0 of the strip is first corrugated, the corrugations extending transversely of the strips and suitable outwardly extending projections are upstruck from the sides of the corrugations, the rows of projections being parallel with each other, and the upper surfaces thereof lying in the same plane, which is the plane of the top of the corrugations. This may be accomplished by any suitable means, such as shown in the drawings, by a forming press 10.

The corrugated portion of the strip is then sheared into individual units, one of which is illustrated at WV 1 in Fig. 22. As shown in the drawings, this is also accomplished by a reciprocating shear, which is associated with the press 10. However any other means such as a suitable rotary shear may be employed.

The sides of the plate, adjacent the corrugations, are now bent downwardly, forming U-shaped channels, and the body of the plate is given an arcuate form as shown in F 23. A preferred means of accomplishing this is illustrated in the drawings and includes a pair of forming dies, which are associated with a suitable forming press 12. This operation likewise might be performed by suitable rolls. The outer portions of the U-shaped sides is then bent inwardly substantially normal to the inner side of the U forming a bead thereon. This may be accomplished by suitable rolls, or, as shown in the drawings, by suitable dies in the forming press, 12. The edge of the unit, which was previously turned inwardly to form the bead, is then rounded, thereby forcing the rough edge of the bead downward towards the inner surface thereof, and at the same time the downwardly ex tending side is bent outwardly a slight amount to prevent future distortion of the unit. As shown in the drawings, this is accomplished by a pair of forming rolls. However, it may readily be accomplished by suit able dies, operating similarly to those shown in the forming press, 12.

The burrs on the unit, which result from the punching operation are now removed. This may be accomplished by any suitable means such as shown in the drawings by a cutting unit, 15, which cuts the burrs from the edges of the projections and gives them a. slight bevel or it may be accomplished by a suitable grinding operation. The unit then is givenits final shape. In the drawings this is accomplished by a pair of rolls. However, it may readily be accomplished by suit able finishing dies. The units are then stacked as finished products for storing or packing.

I have explained in the three preceding paragraphs how the process in general may be carried out employing the apparatus herein shown or other apparatus as desired. It should be noted however, that the particular apparatus shown is a preferred mechanism and is comprehended within my invention herein claimed.

In the drawings, the press 10 which forms the projections 011 the metal strip and shears the plate from a continuous strip or roll is shown as an individual press, but it is contemplated that it may be a part of the press which forms the sides and body portions of the plate. This may readily be accomplished without materially altering either structure.

The press 10 which forms the corrugations a and the outwardly extending projections 5 and 0 is best illustrated in ures 1 and 2, and comprises a frame or base 20, having upright guides or ways 21 in which a head 22 is reciprocated in any well known manner, such as by a crank shaft 23 which is driven from a suitable source of power such as a motor 24. Mounted on the base 20is a male die member 35, which has upstanding ribs 36 having pins 37 associated therewith. A female die 38 is carried by the reciprocating head 22 and has channels 39 having openings 40, associated therewith, which coact with the ribs 36 and pins 37 of the lower die member thereby forming the corrugations a and the laterally extending projections 22 and 0 illustrated in Fig.

the left in Figures 1 and 2). The material passes from the roll 41 to suitable feed rolls 45, journalled in boxes 46 which are carried by standards 47 secured to the forward end of the bed '20. Suitable compression springs 48, retained in the standards 47, act on the upper journal boxes 46 to urge the rolls against each other, thereby gripping the material between the rolls and feeding it to the dies. Suitable driving means are provided to drive the rolls continuously.

To prevent the material from warping, when the strip W is gripped by the dies, the pressure on the upper feed roll is released.

. To this end, the upper journal boxes 46 are yoked about their respective shafts 50, which are journalled in the standards 47 and the upper faces of which are flattened, as at 51.

Normally, the shafts are out of contact with.

the journal; however, just before the dies coact, the shafts are rotated through a portion of a revolution, camming the journals upwardly against the springs-48, thereby relieving the pressure on the rolls 45. Immediately after the dies are separated, the shafts 50 are returned to their normal position by suitable springs, and the rolls again act to feed the materialto the dies.

The shafts 50 are actuated by the reciproeating head 22. Adjustably mounted an ear 52, of the head is a set screw or pin 53, which coacts with one arm 54 of a bell crank, rigidly secured to one of the shafts 50. The other arm 55 of the bell crank is shown as connected by a bar 56 to a suitable lever 57- of the material to the dies. Immediately to the rear of the feed rolls 45 (to the rightJin Figures 1 and 2) are a pair of oiling rolls 58, between which the material is fed. The rolls 58 are loosely journ'alled in the stand ards 47, and the lower roll 58 rotates in a pan 59, containing suitable oil.

A stop or brake is provided to prevent movement of the material W while the dies are acting on-it. A plunger 61, mounted in the ear 52 of the reciprocating head 22, is urged downwardly by a compression spring 62. The plunger 61 is adjusted, to coact with the material W slightly before the die'members come together, and grip the material between the lower surface of the plunger and a suitable block 63, mounted on the base 20 of the press, thereby preventing any movement of the material. The plunger remains in contact with the material for a brief interval after the die members separate and is then carried away by the upward movement of the head. This causes the material to be stripped from the upper die 38. While the dies separate suitable pins 64, slidably mounted in the lower die 35, are urged 11pward by springs 65 and act to strip the material from the lower die. 7

The dies 35 and 38 also serve to shear the strip of material into individual units, one of which is illustrated in Fig. 22. After the first unit has been corrugated and the projections have been formed thereon, the feed roll 45 functions to advance the strip. to a positivestop or block 67, thereby placing the previously formed material beyond the bite of the dies and presenting a subsequent portion of the strip thereto. As the reciprocating head 22 descends to form the next. set of corrugations on the strip, a knife edge 68, rigidly secured to the die 38, coacts with a cutting edge 69, of the lower die 35 and shears the unit W1 from the strip. Thesheared edge of the strip W1 then falls to a'shelf or ledge 70, on the die member 35, thereby plac' crank coacts with a slot 79in the'bar 72 and causes the end of the bar to shove the unit W1 laterally, onto a sloping bottom 80 of a magazine 81. As the head recedes, the bar is withdrawn, to a position to eject the next 7 succeeding unit. As the next unit is ejected, it is pushed by the bar 72 against the preceding unit, and forces the latter into a vertical position in the magazine.

y no

Suitable spring pressed ears, having beveled noses 83 enter the magazine 81, serve to maintain the plates on end, while a springpressed pawl 84 mounted in the runway pre vents the plate from rebounding into the press.

One of the units .Wl thus formed, is illustrated in Fig. 22. As shown, it has been provided with upstanding corrugations (1, extending lengthwise of the plates, and parallel with each other. Each corrugation has been provided with a row of lips 6, extending in one direction, and a row of lips 0, extending in the opposite direction. These lips have been cut out of the sides (Z of the corrugations and turned upwardly. The lips b are staggered with reference to the lips 0, that is to say, there is a lip Z) on one side, andimmediately beyond it a lip c on the other side, and then a lip b on the first side and a lip c on the second side, and so on. The lips I) and 0 lie substantially in the same plane, which is coincident with the plane of the tops of.

the corrugations.

The units W1 are next manually removed from the magazine 81 of the press 10 and placed in a suitable vertical magazine on the forming press 12 where the body portion of the unit is given an arcuate shape and the longitudinal edges thereof are formed into downwardly extending beaded sides.

The frame of the forming press 12 comprises primarily, a bed 100 supported by suitable standards 101, and having a longitudinally extending runway .102 for the units. Secured to this frame is an upwardly extending standard 103, which supports suitable ways, or guides 104, in which a crosshead 105 is reciprocated by a suitable crank shaft 106, which is mounted in the upper portion of the standards and is driven by a suitable motor. The head 105 carries die

members

108 and 109, which are adapted to coact with corresponding die

members

110 and 111 mounted in the runway 102 of the base and whlch dies will be hereinafter described in detail.

The units VVl are placed in a stack, one above the other, in a vertical magazine comprising upright plates 112, which have outwardly extending flanges 113 at the base thereof, by which they are secured in place on the bed 100, and the inwardly extending edge flanges 114 adapted to overhang the ends of the units. The units in this magazine rest one on top of the other, in an inverted position, the projections of each plate resting on the plate below as shown in Figs. 8 and 9.

The bottommost unit WVl in the magazine, pushed from beneath the stack onto the die member 110, between the guides 107, by a plunger or bar 115 which is manually reciprocated between suitable guides 116 rigidly secured to aportion. 100a of the base of the press, as shown in Figs. 3 to 7 A lever 117 pivoted to the base at 118 is connected by a link 119, to the bar 115. The lever 117 has a suitable handle 120, by means of which it is manually rcciprocated by the operator. The foremost corners of the plunger 115 are beveled as at 121, and coact with levers 122 which are pivoted at 12 1 to the bed 100. The levers 122 have wedge'shaped arms 125, which are adapted to raise all but the bottommost unit in the stack as illustrated in

F

8 and 9, but which are normally held out of contact with the units by springs 127. The construction is such that as the bar 115 is brought forward by the operator, the beveled nose of the bar will cam the arms 123 of the lever out wardly, causing the arms 125 to enter apertures 126 in the sides of the magazine and lift the stack of units therein a short distance, as illustrated in Fig. 9, leaving the botlommost unit 1V1 resting on the base 100 free from the stack and in position to be urged forward onto the die member 110 by the continued movement of the bar 115.

The

die members

108 and 110 have arcuate faces which shape the body of the plate and are also adapted to form the downwardly extending sides thereof. It will be noted, as shown in Figs. 11, 13 and 14:, that the lower die member 110 is slidably mounted in the recess 129 in the base 100 and is urged upwardly by springs 131, against suitable stops 132. shown, the upper surface of the die member 110 is generally arcuate in cross section and is provided with a series of longitudinally extending parallel grooves 133, which align with and are the same depth as the corrugations a. of the units V1, and in which the corrugations With their associated project ons slide across the die. The stops 132 are rigidly secured to the bed 100 by suitable bolts 13 1, and have upwardly extending ribs 136, which lie adjacent the die 110. The upper die 103 is arcuate in cross section and has a plurality of downwardly extending parallel ribs 135 which are adapted to cooperate with the corrugations in the plate. the construction being such as to cause substantially the corrugated. portion of the unit to be gripped between. the die members. Rigidly secured to the head 105, adjacent the sides of the die 108, are blocks 137 which cooperate with the ribs 136 of the slop members 132.

t will be noted that the units W1 are fed to the dies in an inverted position, as illustrated in Figures 13 and 1 1, and as the die members 112 .and 110 are brought together, the body of the unit is arcuately shaped.

As the head'105 continues in its downward movement, it carries the lower die 110 with it, causing the edges of the unit, which have been gripped between the rib 136 of the step 132 and the block 137, to be drawn around the rib, thereby forming the sides into upwardly extending U-shaped channels (the unit being 140 slidably mounted in'the blocks 139, are

urged downwardly by compression springs 141, thereby ejecting the units from the upper die member, while the compression springs 131, herelofore described, ur ethe die upwardly, stripping the plate from til. ribs 136 of the blocks 135, thereby completelyfreeing the plate from both die members.

The unit W2 thus formed by the dies 108 andllO is bestshown in section in Fig. 24. The body portion of the unit which carries the corrugations a and the projections b and 0, hasbccn given an arcuate shape or curvature in a direction transverse to the corrugations. The sides of the unit have been bent first downwardly, then outwardly and upwardly, thereby forming downwardly extending U-shaped'channels f which are parallel with the corrugations.

After the unit has been formed, the operator again swings the lever 117, thereby carrying the bar to the left (Figs. 4,5 and 6), feeding another unit W1 fromv the magazine to the bite of the dies 108 and 110. As the unit is fed, the foremost edge thereof strikes the unit W2, which has just been formed, and shoves the latter onto the die member 111. The upper portion of the channels f slide beneath guides and the corrugations a'slide in channels 146 in the die member 111 as shown in Figs. 11 and 12.

The faces of the dies 109 and 111 are arcuately formed to conform with the shape of the unit V2. The upper die 109 has downwardi 1y projecting ribs 147 which align with, and are the same depth as, the corrugations a. The

die members

109 and 111 are similar in all respects to the die

members

108 and 110 heretofore described.

The lower die member 111 is slidingly mounted in the base 100 of thepress and is normally urged upward by compression springs 148. Suitable blocks or stops 149, rigidly secured to the base 100 by bolts 150, coact with shoulders 151 on the die member and restrict its upward movement.

The guides 145'which guide the unit onto the die 111 are withdrawn as the upper die 109 descends, permitting die blocks 156 rigidly'secured to the die member 109 to contact with the upper edges of the channels f I; of the unit. To this end the guides 145 are slidably mounted in recesses 157 of blocks 158 which are rigidly secured to the frame 100. The guides are held in alignment by pins 159, rigidly secured thereto, and which slide in openings 160 in the blocks 158. Suitable compression springs 161, coiled about the pins, normally urge the guides 145 against an abut-' ment 162 on the blocks 149, thereby limiting the movement of the guides. As the upper die 109 descends, cams 164 rigidly secured to the die member, contact with ears 165 carried by the guides, and cam thelatter out ward, causing them to be forced clear of the descending die and its associated parts. As

the die rises, the springs 161 force the guides to their normal positions. To facilitate the entrance of the units beneath the guides, the foremost under surfaces thereof may be tapered.

The dies 109 and 111 act to head the outer leg 9 of the channel 7. To this end, the blocks 149have recesses 152 into which the channels fare forced as the upper die descends.

- The recesses 152 have downwardly extending

walls

153 and 154. The walls-154 extend downwardly ashort distance and are then sloped inwardly towards the die and the walls 153, as shown at 155, and then downward as at 154a and then inward, joining the walls 153 as shown at 153a. As the 'unit is forced downward by the descent of theupperdie member, the edges 9 of the channel portions of the unit enter the recesses 152 and strike thesloping portion 155 of'the walls which ,7

turns them inwardly, thereby forming a bead as shown at h in Fig. 25.

When the'head 105 rises, the upper die is carried away from the lower die 111 and the compression spring 148 returns the latter to its normal position, thereby stripping the beaded portions of the unit W3 from the walls of the recesses 153 and freeing the unit from the dies. i

I As the next unit W1 is, fed from the magazine-by the operator, the units W2 and .W3 are advanced the length of one unit. The unit W2 advances from the dies 108 and 110 to the dies 109 and 111, while the unit W3 is advanced or is shoved by the unit W2 into the bite of the forming roll unit 14. i i

The forming roll unit 14, as illustrated in Figs. 3, 4, 5, 15 and 16, comprises two pairs of rolls 170. Each roll is mounted on a shaft 171, journalled in bearings 172 located in standards 173 which are rigidlysecured to a portion 1005 of the base of the press. The rolls are driven by a motor 174 (Figs, 3 and 31) which is connected by a belt 175 to a pulley 176, ri idly mounted on a shaft 177 journalled in bearings 178 in a bracket 179 and one of the standards 173. Keyed to the shaft 177 is a spur gear 180, which lies between two pinions 181', one of which is secured to each upper feed roll shaft 171. Suitable pinions 182 are rigidly secured to the lower feed roll shafts 171, thereby driving the latter;

The speed of this drive is such, that the rolls advance the units slightlyfaster than the operation of the dies, thereby preventing any adapt the mechanism for different materials, an adjustment is provided by means of which the rolls may be separated or brought closer together as desired. To this end, the bearings for the upper rolls are slidably mounted in ways 183 in the standards 173. Suitable compression springs 184 retained in recesses 185 in the standards act on the hearings to force the latter against transverse bars 186, carried in the ways 183 of the standard, there being one such bar for each pair of rolls. The bars 186 are restrained in their upward movement by suitable set screws 188, carried by transverse members 189, rigidly secured to the standards by bolts 190. To permit accurate adjustment of the rolls, each set screw 188 is provided with a suitable knob or wheel 191, and a lock nut 192 which retains the rolls in an adjusted position.

The forming rolls, which accurately form the arcuate face of the units, also act on the downwardly extending sides to bend them outward a slight amount, thereby reducing the springiness and the tendency of the unit to distort. The forming rolls also turn the innermost edge of the bead downwardly a small amount, rounding the exposed surface thereof, so that no rough edges exist on the outer surfaces on the unit. Each upper roll comprises a central or body portion 195, the surface of which is arcuate in cross section, as illustrated in Fig. 15, and which conforms to the curvature of the finished plate. Im mediately adjacent the body portions 195, are flanges 196, which have grooves 197, on their outer peripheries, adapted to coact with the beaded portions of the units. The edges of the body portion are tapered as at 194, the angle of the taper being slightly greater than that imparted to the units by the dies.

The lower forming roll comprises a series of discs 198 and 199. The discs 199 are slightly greater in diameter than the discs 198 and are adapted to fit between the rows of projections on the unit. The discs 198 coact with the upper surface of the corrugations and the projections thereof. To either side of the discs 198 and 199 are flanges 200, which are so shaped as to finish the outer surfaces of the downwardly extending sides of the units. The various portions of the rolls are rigidly secured to their respective shafts by suitable j amb nut-s 206, which force the portions against each other and against shoulders 205 of the shafts. The angle formed by the flanges 200 is somewhat greater than the angle which has been imparted to the units by the dies 109 and 111, thereby forcing the downwardly extending sides outwardly a slight amount from theposition shown in dotted lines in Fig. 26, to the position shown in full lines. 1

It will be noted that the dies 108, 110, 109 and 111 bend the sides of the plate through a greater angle than is desired for the finished product. Thereafter the finishing or forming rolls 170 lessen this angle, or, in other words, bend the sides back a slight amount. The dies also curve the body portion of the plate a greater amount than is desired in the finished. product and thereafter the forming rolls lessen the curvature. This, it has been found, substantially eliminates the ordinary tendency of the finished units to spring or distort when piled one on another, the bead of one unit supporting the bead of the next succeeding unit, and the body portions resting clear of each other to prevent damage to the printing strips.

The printing strip which carries the char acters, by means of which the printing is accomplished, is best illustrated in Fig. 31, and comprises a sheet metal member 250, bearing upwardly embossed printing characters 251, and having inwardly curled edge flanges 252. Such strips are held in place on the holder by the projections b and 0 of the holder, which support the strips and beneath which the flanges 252 extend. As illustrated in Fig. 30, it will be noted that the edges of the projection have been tapered slightly, to conform with the inwardly turned edges of the printing strip, thereby securing the printing strips in place on the holder. The downwardly extending edges of the printing strip extend substantially to the body portion of the plate. Hence, it will be seen that any burrs, remaining on the unit as a result of the stamping op erations, must be removed, and the edges of the projection must be tapered.

"Immediately after the unit is discharged from the first pair of rolls 170, it is forced through the trimming or cutting unit 15, which trims the burrs from the body portion of the unit, and bevels the edges of the pro jections so that they may readily receive and retain suitable printing strips. As illustrated in Fig. 26, it will be noted that the edges of the projections have slight butts thereon, and that the edges of the openings from which the projections have been stamped also have upwardly extending burrs, these burrs being the result of the stamping operation.

The cutting or burring unit 15, used to trim the burrs B from the units and bevel the edges of the projections as shown at C, is best illustrated in Figs. 3, 5, 15, 17, 18, 19 and 20. The cutting tool itself, is best shown in Figs. 21 and 27, and preferably comprises a block 220, having upwardly extending ribs 221, which form a channel 222, the depth of which is equivalent to the distance from the top of the plate to the top of the project-ions, and which is so shaped as to permit the projections to slide along the bottom face 223 of the channel. The upper surfaces 224 of the ribs contact with the body portion of the plate at 225, as illustrated in Fig; 27, and the sides of the ribs contact with the sides of the projections, as illustrated at 226 in Fig. 27. The

forwardmost portions of the ribs are tapered as at 228, in Figs. 20 and 21, thereby forming a cutting edge along the sides and top ribs. The inner surfaces of the ribs are bevelled as at 229, thereby impartin g a taper to the edges of the projections, forming them so that the printing strips 250 will readily fit in place thereon.- As shown in Fig. 21, I prefer to make the block 220 of two pieces of

metal

220a and 220?), which are secured together by suitable pins 230 and a bolt 231.

As illustrated in Figs. 17 to 20 inclusive, therev is one cutting tool or block 220 for each row of corrugations, the tools being held in a suitable carriage 240 by means of clamping plates 241, which are bolted together by suitable bolts 242. As illustrated in Figs. 20 and 21, each of the cutting tools 220 has outwardly extending ears 243 at their bases, which underlie the carriage 240, and are retained in contact therewith by the lower clamping plate 211. The upper clamping plate 241 is cut away as at 2 16 to receive the unit. As the cutting units 220 are substantially greater in width than the center to center distance of the corrugations, it is necessary that they be staggered as shown in Fig. 18, the cutter 220, for one corrugation,

lying in the foremost portion of the carriage 2 40 and the cutter 220 for the next corrugation lying immediately to the rear and one side thereof, and the cutter for the next. corrugation lying in the forward portion of the block, and so. on.

The cutting and trimming unit 15 is so mounted between the two pairs of rolls that it may be readily and quickly replaced. To this end, a pin 260 is rigidly secured to one of the standards 273, and projects inward therefrom; The carriage 240 is provided, at one end, with an opening 261 adapted to receive the pin 260. The other end of the carriage has atransverse opening 262 adapted to receive a pin 263, having a knurled head 264 and carried by blocks 265 which is rigidly secured to the other standard 173 by suitable bolts 275. As described, it will be seen that when the pin 263 is removed, and a new trimming unit substituted therefor, the cutting unit just removed may then be taken apart and the cutters sharpened.

As heretofore described, the plates or units V4 are forced through the cutting unit by means of the first pair of rolls, and before the first pair of rolls have completely released the unit, it is gripped by the second last acting pair of rolls serves to true the pair of rolls, which are similar in all respects to the first pair heretofore described. The

plates and correct any discrepancies or variations which may have been imparted thereto by reason of the cutting or trimming operation. I

The last acting pair of rolls 170 ejects: the finished units into a suitable magazine, where the side walls of the magazine 272.

they are stacked by a stacker 270. As the plates are ejected, by the last pair of rolls, the forwardmost end falls against a spring pressed pin or plunger 271, having a bevelled nose, and whichenters suitable apertures in As the completed unit V5 is further ejected, the rearmost portion, as it leaves the rolls, falls to the bottom of the magazine, as illustrated at 273 in Fig. 5. Shortly thereafter, a suitable arm 276, pivoted to a rock shaft 277 mounted in brackets 278, is urged against the unit WV5', forcing it into an upright or endwise position in the magazine, and carrying it beyond the tapered nose of a spring-pressed latch 280 which enters suitable apertures in the side walls of the magazine. A block 28lwhich frictionally engages the sides of the magazine, due to suitable compression springs 282, serves to retain the units in an upright position, the compression strength of the spring being sutficient to retain the units in an upright position, but permitting the arm 276 to pack the units together and shove the block and units rearwardly as eachsucceeding unit is discharged from the mechanism.

I I prefer to operate the stacking arm 276 from the reciprocating head 105 of the press. To thisend a roller 290 is mounted on the reciprocating head, and coacts with a notch 292 iii a cam plate 291. As the head descends, the roller 290 enters the notch 292 and forces 51;; plate rearwardly carrying with it a bar The bar 293 carries a roller 294 which 00- acts with a slot 295 in a rock am 296 rigidly secured to the shaft 277,hence the downward movement of the head 105 causes the stacking arm 27 6 to swing downwardly to stack theunits. As the head rises, the roller 290 coacts with the upper surface of the cam slot 292, and withdraws the cam plate 291 and its associated mechanism, thereby causing the :tacker arm 276 to returnto its normal posiion.

The reciprocating head is preferably set in motion by the operation of the arm 117. To this end, a switch 300 is operated by a link 301 pivotally secured to the operating arm 117 at 302, as illustrated in Figs. 4 and 6. As the operating arm 117 is swung to the left (Figs. 4 and 6) to advance the units, the link 301 which is pivotally connected to a slide bar 303 of theswitch forces'the latter inward, thereby caniming a pawl 304 upward, and permitting it to fall into a notch 305 in the bar 303. However, as the operating arm 117 is withdrawn, the pawl 304 again contacts with the lug 306. on the bar, but this time the tendency is to swing the pawl in a counter-clockupward, thereby closing the switch contacts 310 and 311 thereby completing'a circuit from a battery or other source of power 320, to a solenoid 314, the core of which is secured to one end. of a rock arm 315, pivoted intermediate its ends to the base of the press. The other end of the rock arm is connected by a link 316 to a suitable latch 317, which controls a single rotation clutch 318, diagrammatically shown in Fig. 32, and which connects the pulley to the crank shaft to cause the reciprocation of the head 105.

To prevent damage to the machine if the plates should jam in the runway,one plate sliding on top or beneath another, and the reciprocating head thereafter desccnding-a safety switch is included in the circuit 312, as indicated at 330 in Figs. 32 and 4;. As shown, this switch comprises a pawl 331 normally urged into the runway by a spring 332, and which controls a switch contact It will be noted that when a plate is present in the runway, as illustrated in Fig. 32, the downwardly extending sides of the plate cam the pawl outwardly, closing the contact 333 and closing the circuit, thereby permitting the solenoid to operate the clutch. IIowever, in case no plate is present, the pawl 331, will be swung into the runway by the spring 332, and the contact- 333 will be opened, thereby opening the circuit between the switch 312 and preventing the operation of the solenoid 314;, until the plates in the runway have been straightened and their relative positions corrected.

1. In a machine for forming holders for printing members, the combination with a magazine adapted to contain a pile of blanks, a pair of levers on opposite sides of the magazine pivotally mounted on stat onary parts of the machine and having cam ends, and a plunger for feeding the bottonnnost blank, the plunger having an inclined member to engage the levers opposite the cam ends to force the engaged ends outwardly and the cam ends inwardly to raise the pile of blanks above the bottom blank.

2'. In a machine for making holders for printing members, the combination of a pair of coacting blocks having coacting faces, means providing grooves at the opposite sides of one ofthe blocks, there being provision for relative movement between sa'l means and said block, the outer wall of such groove gradually approaching the block, and abutments on the opposite s des of the other block, said abutments being adapted to engage inverted trough portions at the sides of the blank and force them into the said converging groove' to curl in the edges of the blank- 3. In a machine for making holders for printing members, the combination of a pa r of coacting blocks having coacting faces, means providing grooves at the opposite sides of oneof the blocks, abutments on the opposite sides of the other block, said abutments being adapted to engage inverted trough portions at the sides of the blank and force them into the said grooves to curl in the edges of the blank, laterally moving guards adapted to overhang the inverted troughs of the blank, and means for forcing said guards laterally as the blocks approach each other.

4. In a machine for making holders for printing members, the combination with means for forming blanks with upstanding projections, of two pairs of feeding rolls and a trimming device located between them, said trimming device having edges adapted to engage and remove portions of the projections on the blank.

5. The combination with means for forming a blank with rows of upstanding projections, of a pair of coacting rolls adapted to feed such blank lengthwise of the projections, a second pair of rolls spaced in advance of the first pair, a trimming device located between the two pairs of rolls, said trimming device being adapted to form a bevel 0n the edges of the projections as the blank passes from the first to the second pair of rolls.

6. The combination with dies for forming a blank with rows of upstanding projections, of a pair of coactin g rolls adapted to feed the blank lengthwise of the projections, means for feeding the blank successively to the dies and then to the pass of said pair of rolls, a second pair of rolls similarly formed spaced in advance of the first pair, a distance less than the length of the blank, and a trimming device located between the two pairs of rolls.

7. The combination with means for forming a blank, of a pair of coacting rolls adapted to feed the blank, means for moving the blank to the pass of said pair of rolls, a second pair of rolls spaced in advance of the first pair, a trimming device located between the two pairs of rolls, said trimming device being adapted to act as the blank passes from the first to the second pair of rolls, one roll of each pair having floating bearings, a yoke acting on said bearings, and an adjusting device engaging the yoke.

8. A machine for making holders for printing members, the combination with means for forming a blank with upstanding corrugations having laterally projecting ribs at their ridges, of a pair of truing rolls through the pass of which the blank is fed, and means for adjusting one of said rolls toward and away from the other roll for different thicknesses of stock.

9. In a machine for making holders for printing members, the combination with means for guiding and feeding blanks having parallel rows of upstanding projections, of a pair of rolls, a trimming device adapted to engage a blank while a portion thereof is between said rolls, a removable carriage for supporting the trimming device, said carnage comprising .a membercarrymg a. number of trimming units, each unit being adaptautomatically operating said dies, means for preventing the operation: until after the blank has been properly put into position between the dies, said means being actuated by the back stroke of the feeding means.

11. In a machine for making holders for printing members, the combination with a magazine for blanks, a pair of coacting dies v adapt-ed to act on the blank, means for auto matically operating said dies, means for preventing the operation until after the blank has been properly put into position between the dies, said means including a plunger adapted to move the blank into proper position, and an electric switch operated by the plunger on its return stroke.

12. In a machine for making holders for printing members, the combination of means for artially forming the blank, means for feeding the partially formed blank, a pair of forming rolls to which it is fed, a pair of dies adapted to act on the fed blank before it passesto the rolls, and a safety device including a pawl extending into the runway of the formed holder between the dies and the forming rolls for preventing a subsequent operation of the dies if the product thereof is not properly advanced.

13. In a machine for making'holders for printing members, the combination. of means for feeding blanks successively, two pairs of dies adapted to act successively on the fed blank, and a safety device for preventing operation of either pair of dies unless the blanks therefore are properly positioned, said device including two electric switches in series in a circuit controllingthe actuator for the I dies, one of these switches being closed conse quent upon the advancement of a blank to the p first pair of dies and the other switch being closed consequent upon the advancement of a blank from the second pair of dies.

14. In a machine of the character described, the combination of means for car.- rying a supply of blanks, two pairs of dies adapted to act successively on such blanks, a pair of forming rolls to which the doubly stamped blank passes, means for shoving three blanks simultaneously and in series, one from the supply to the first pair ofdies, one from the first pair of dies to the second pair of dies, and one from the second pair of dies to the forming rolls, and safety devices for preventing the starting of the operationof the dies unless two blanks are in proper position between them.

, 15. In a device for making holders for printing members, the combination of a pair of. die blocks having complementary concave and convex coacting faces, ribs at the opposite sides, of one of the blocks, coacting grooves at the opposite side of the other block, the ribs 1 and grooves, being farther apart than thecoacting faces, one of said blocks and said members on opposite sides thereof beingmovable as a unit whereby the faces first act to curve the intermediate region of the plate before the ribs and grooves act to a form trough shaped portions at the margin thereof, one of the blocks being also movable relative to the members on opposite sides thereof.

printing members, the combination of a pair of die blocks having coacting faces, ribs at the opposite sides of one of the blocks coactmg grooves at the opposite side of the other block, the ribs and grooves being farther:

apart than the coacting faces, whereby the said faces may first engage the intermediate region of the plate before the ribs and grooves act to form trough shaped portions at the margin thereof, a'sprin adapted to support the block between the ri s and the ribs being carriedby separate blocks at the sides of the spring mounted block, whereby relative movement is allowed between said blocks.

' 17. In a machine for making holders for printing members, the combination of a pair of die blocks, having complementary convex and concave faces-thus adapted to curve the intermediate regionof the plate, means on opposite sides of one of the blocks having narrow grooves adjacent the sides of the block, said) block being mounted for movement independent of the means for carrying the grooves, whereby the plate may be first engaged in the intermediate region, andthereafter the plate with the movable die block moved relatively to the blocks carrying the grooves to bend inwardly the troughshaped edges of the plate.

; 18. In. a machine for making holders for rmtmg members,"the combination of a pair of die blocks having coacting faces adapted to engage the intermediate region of the plate, means on opposite sides of one of the blocks having grooves adjacent the sides of the block, said block being mounted for movement independent of the means for carrying the grooves, whereby the plate may be first engaged in the intermediate region, and thereafter the plate with the movable die block moved relatively to the blocks carr ing the grooves to bend inwardly the troughshaped edges ofthe plate, a pair of guards adapted tofoverhang' the trough-shaped edgesof the plate, springs presslng said v 16. In a device for making holders for r ms t guards toward the corresponding die block, said guards having inclined shoulders, and a pair of cams associated with the other die block and adapted to act on said shoulders as the dies are brought together to force the guards outwardly and thus free the troughshaped edges to the action of shoulders carried on the opposite sides of the die.

' 19. In a machine for making holders for printing strips, the combination of means for forming a blank and for feeding it, of a pair of rolls through which it passes, a stacking device beyond the pair of rolls comprising a receptacle with a detent adapted to engage the delivered holder as it drops toward the vertical position, and a packing arm adapted to swing against the delivered plate and force it beyond the detent.

20. In a machine for making holders for printing strips, the combination of means for forming a blank and for feeding it, of a pair of truing rolls through which it passes, a stacking device beyond the pair of truing rolls comprising a receptacle for the delivered holder as it drops toward the vertical position, a rock shaft, a packing arm mounted on the rock shaft adapted to swing against the delivered plate and advance it, and mechanism for rocking the packing arm, said mechanism being actuated by the operation of a die which forms the plate.

21; In a machine of the character described, the combination of a pair of blocks having coacting faces adapted to form an intermediate region on a blank, a pair of die members on opposite sides of one of the blocks, a pair of die members on opposite sides of the other block ada ted to coact with the first mentioned pair, t ere being provi sion for relative movement between one of the blocks and the members on opposite sides thereof, and means for moving one of the blocks and the members on opposite sides thereof toward the other block, and continuing such movement after the coaction of the two blocks.

22. In a machine of the character described, the combination of a pair of blocks having coacting faces adapted to form an intermediate region on a blank, a pair of ribs on opposite sides of one of the blocks, a pair of recesses on opposite sides of the other block, one of said pairs being rigid with its block and there being provision for relative movement between the other pair and its block, and means for moving one of the blocks and the members on opposite sides thereof as a unit toward the opposing block and continuing the movement after the coaction of the two blocks to cause coaction of the ribs and recesses.

' 23. In a machine for making holders for printing members, the combination of two pairs of rolls, a trimming device ada ted to be mounted between said pairs and aving signature.

RICHARD A. BOND.