US1051353A - Envelop-printing mechanism. - Google Patents

Description

0. P. SMITH.

BNVELOP PRINTING MBCHANISINL APPLICATION FILED F111;. 2,1910 Patented J an. 21, 1918 7 SHEETSSHEET 1.

w Q A c. SMITH. ENVELOP PRINTING MECHANISM. APFLIGATIOY FILED FEB. 2,1910.

- Patented Jan. 21, 1913.

- 7 SHEETS-SHEET 2.

a N 'Wfinmsea: I IIHIJBIZZW/"J UbarleaEJmit/z G. F. SMITH.

ENVELOP PRINTING MECHANISM. APPLICATION FILED FEB. z, 1910.

Paten ted Jan. 21, 1913.

7 SHEETS-SHEET 3.

Inventor m n my 0. F. SMITH. ENVELOE PRINTING MECHANISM. APPLICATION FILED rB. 2 ,1910. 1 51353 Patented Jan.21,19-13.

7 MEETS-SHEET 4.

Witnesses G. F. SMITH.

ENVELOP PRINTING MECHANISM,

APPLIOATION IILED PEB.2, 1910.

Patented Jan. 21, 1913.

in wwziw': Ck ariesfiimiffi wfforleeygm C. F. SMITH.

ENVBLOP PRINTING MEGHANESM APPLICATION FILED FEB.2,1910.

Patented Jan. 21, 1913 7 SHEETS-SHEET 0.

LO5L858.

v Inven for: Ukqrleal'Jmit/e yiiorney.

G. F. SMITH. ENVELOP PRINTING MECHANISM.

APPLICATION FILED FEB 2, 1910.

7 SHEIBTS-SHBET 7.

I 0 0 M *w 1 I I Patented-M1121, 1913.

ICE.

BRIDGEPORT, CONNECTICUT, ASSIGNOR T0 MElRCANTILE OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CHARLES E. SMITH, oonronarron,

ENVELOP-PRINTING MECHANISM.

Specification of Letters Patent.

Application filed February 2, 1910.

Patented Jan. 21, 1913. Serial No. 541,596.

[0 all whom it may concern:

Be it known that I, CHARLES F. SMITH, a citizen of the United States, and .a resident of Bridgeport, in the countyof Fairfield and State of Connecticut, have invented certiain new and useful Improve ments in Envelop-Printing Mechanism, of which the following is a specification.

This invention relates to printing mechanism mrticularly adapted for printing envelops or envelop blanks, preferably in con junction with mechanism for forming said blanks into envelops.

The object of my invention is to furnish a mechanism of the class specified operable at high speed and having means for varying with tacility the matter to be. printed and the number of impressions to be made and with a minimum delay in the operation of the machine as a whole.

To these ends my improvements comprise combinations of means illustrated in their preferred forms in the drawings accompanying this specification. Therein Figure l is a side elevation of my improved mechanism, Fig. 2 is an end elevation and Fig. 3 is a plan, corresponding with the side'elevation of Fig. 1. Fig. t. is a longitudinal sectional elevation on line 3, 3 of Fig. 3. Fig. 5 is a plan partly in section, of details of the changeable speed driving mechanism. Fig. (5 an end view partly in section of a detail of the reversing gear mechanism and Fig. 7 is a plan view corresp mding therewith. Fig. 8 is a detail of the detent. Fig. 5) is a plan view largely in section of a detail of my printing mechanism and Fig. 10 is a section on line 9, 9 of Fig. 5). Fig. 11 is a sectional elevation of a portion of one of the inking devices.

Fig. 12 is an elevation looking in the direction of arrow 12 of Fig. 11. Fig. 13 is a section on line 11. 11 01 F g. 11. Fig. 14 is a diagrammatic view ot a detail of the speed F controlling mechanism. The ucales of Figs.

5 to 14. inclusive are materially larger than that of Figs. 1 to 4-.

Gcnrml description.-The mechanism of the present invention, while applicable to a wide variety of uses, herein illustrated as particularly adapted .ior printing corner cards on envelop blanks and for printing and embossing postage stamps thereon prior to the folding of said blanks into envclops. Said mechanism embodies a plurality of rotatable form cylinders in an intermittently rotatable carrier and means, settable at will,

for varying the number of impressions from minimum quantity of imtn'essions from one form is the unit of variation to the maximum quantity of impressions that can be made consecutively from one form.

My improvements also include means for automatically reducing the speed of the mechanism while shifting one form cylinder out of printing position and another into printing position, said shifting being accomplished between the presentation of consecutive blanks in printing position.

My improvements include hand operable means for changing the forms in the form cylinders without interfering with the consecutive and continuous operation of my improved printing mechanism.

There are features of improvement in inking mechanism, in governing means, in means for starting and stopping the form cylinders and other features of improvements that will be dcscriliied in detail later herein.

My improved mechanism may be supported in suitable side frames l. mounted on bed plate 6. Receiving cylinder 10 tixed t0 shaft 13 having bearings in side frames 4, 5 is provided with a plurality of receiving beds as it having the usual clips 15, 15 actuated by roll 11 thereof in coact ion with cam 17 fixed on sleeve 18 inreaehing from frame 4 and coaxial with shaft 13. Blanks may be delivered to cylimler 10 from table 8 by any suitable means not shown. Impression cylinder .20 on shaft 19 is positioned diiectly below receiving cylinder 10 and in rolling coartion therewith. Shaft 19 has hearings in side frames 4-. lmgn'essiou cylinder 20 is provided with a plurality of pairs of impression beds as 21 at one end and 910 at the other end (Fig. 3) for coaction with tho ctz-rncr card printing mechanism and the stamp printing and cmboss ing mechanism respectively: Each pair of impression beds; is provided with clips "22, actuated by roll 23 thereof in coaction with can] fixed on sleeve 25 inreaching from frame 4 and coaxial with shaft 19.

/ Also as illustrated in the present embodiment the mounted, equally spaced and equally distant from the carrier axis, a plurality of form cylinders as- 40, for rotation on their respective shafts, as 39 to said cylinder 40, having hearings in said carrier and for revolution about axial shaft 26 thereof. Intermittent gear 28 is coaxial with and fixed to carrier 30 and is driven by mutilated pinion 27 on shaft 29 having hearings in side frames 4, 5.

Stamp printing and embossing mean8. Stamp form cylinder 220'is fixed to shaft 221 below impression cylinder 20 and for coaction therewith. Said stamp form cylinder is of the same diameter as said impression cylinder and has four stamp forms as 222 equally spaced in its periphery, corresponding with the four impression beds as 210 of saidcylinder 20. Each of'said stamp forms may be provided with the usualcurved face to be inked and the usual intaglio portions for coaction with complementary cameo portions of impression bed as 210 all of well known construction and not shown in detail herein.

Folding cylinder.--To the right of and in coiiperative relation with impression cylinder 20 (Figs. 3 and 4) is folding cylinder 240 on shaft 7 having hearings in sleeves 238, 239 in frames 4, 5 respectively. Said cylinder 240 has a plurality of folding beds as 235 each having end clips 236, 236, end folders 237 and bottom flap folders 241. Said clips and folders may be actuated by some convenient means such as levers 242 having rolls as'243 in coaction with cams as 244 fixed to the frame sleeves as 239.

[ailing meohanism.-Each of the form cylinders is provided with ink distributing means mounted adjacent thereto in carrier 30, comprising ink delivery roll as 31, for form cylinder 40, and ink receiving roll 32 in coaction with roll 31. Said roll 31 is fixed to shaft 33 having bearings in carrier 30 and also in supplemental frame 34 of said carrier for supporting the outboard end of said shaft Gear 36 is fixed t'o shaft 26 and drives gear 35 fixed to shaft. 33. Cam roll 37 fixed to said shaft 33 engages cam 38 fixed to shaft 26 to impart endwise reciprocatory motion to ink delivery roll 31. Ink receiving roll 32 is mounted for free rotation in links as 43 adjustably secured to arms 41, 42 supported in carrier 30 coaxial with shaft 33. Rod 60 secures said arms 41, 42 together.- Ink receptacle 44 is a hollow cylinder in form and is fixed to shaft 45 having bearings in sleeve 47 inreaching from frame 5 and in rod 121 in sleeve 46 inreaching from frame 4. Said receptacle (Figs. 11, 12, 13) has ink feeding roll 48 pivoted in lengthwise slot 111 therein and with their axes parallel. Said slot 111 forms a passage from the interior to the exterior of said receptacle and roll 48 1 has its face tangent to the face of receptacle 44. Shaft 112 of roll 48 has gear 113 fixed to one end thereof and said gear is driven, when receptacle 44 is rotated, by gear 114 fixed to sleeve 47. In cylindrical pockets 115, 116 outreaching-each side from and parallel with slot 111 are rock rods 117, 118 respectively. Said rods are flatted off lengthwise for engagement with. roll 48 so that when they are rocked on their axes- I the space between those edges of said rods adjacent to said roll 44 approach or. recede from said roll thus allowing less or more space for the passage of ink to the outside has an arm as 1170 fixed thereto carrying a =conical faced roll as 119 for engagement with opposite conical faced roll 120 fixed 'of receptacle 44. Each of said rods as 117 to the inboard end of rod 121 in sleeve 46 Y and coaxial with receptacle 44. Roll 12 0 may be moved inwardly to force rolls as 119, outwardly to increase the openings between the edges of rock rods-117, 118 and roll 48 by, means of screw 122 coaxially threaded into sleeve 46. Arms as 1170, have upstanding portions as 123 between which is mounted spring actuated plunger 124%,to urge rolls as 119 into engagement with rbll 120 and toforce said roll 120 and fod 121 outwardly when screw 122 is slackened. Arms 125, 1260 are clamped to sleeves 46, 47 respectively and carry'in their outboard ends rock shaft 126. Arms 127, 128 are clamped to rock shaft 126 and carry bet-ween them 'roll 130 on pin 129. Said roll 130 is urged to engagement with receptacle 44 by spring 131 on rock shaft 126, and is eflicient to spread on the cylindrical surface of the receptacle the ink delivered by roll 48. Between roll 130 and the path of travel of the ink delivery rolls, as 31, ink transfer roll 132 is mounted on shaft 133 having bearings in sleeves 134, 135 inreaching from frames 4, 5 respectively. Said shaft 133 .has gear 136 and cam roll 137 fixed thereto rearward of frame 5. Said cam roll en ages cam 138 on shaft 139 to reciprocate en wise said shaft 133' and ink transfer roll 132 thereon. Intermediate ink roll 1320 mounted in arms. 1330 on brackets 1331 delivers description will therefore suiiice.

Ink receptacle 223 is mounted on shaft 224 and the flow of ink from-the interior to the 40 just described and a briefv exterior of said receptacle is controlled by .conical roll 225 in engagement witlrsmall 'reciprocated endwise by means of cam 232 fixed thereon in engagement with roll 233 on stud 234 in frame 4 (Figs. 1 and 2.)

i' ormcylinder amac/aaniavm-Jteturning now to carrier 30 and the form cylinders therein, gears 51 and of the/same size and same number of teeth are mounted side by side on shaft 26, gear 52 being fixed to said shaft and gear 51 being fixed to carrier 30. Gear slidably mounted on form cylinder shaft 33 and meshes alternately with gears 51 and 52. Gear 50 held against rotation relative to its shaft 33 by key 49 (Fig. 9). Gear 50 is moved axially at predeter mined. times from engagement with gear 51 to engagement with gear and vice versa by means of yoke arm 54 in engagement with groove 55 in the hub of said gear 50. Said yoke arm 5% is slidably mounted on red 56 in. carrier 30 andhas roll 57 thereof in engagement with cam 58 fixed to sleeve inreaching from frame 5. Form cylinder l0 is provided with one or more type bars as 61 and the followingimeans are provided for holding said bars in said cylinder and for removing and replacing them. therein. For convenience form cylinder l-0 is made integral with shaft 33 and said shaft is made hollow for the reception ofrod 62, spring 63 and spring retaining screw 64. Form cylinder 40 has a cavity 65 therein for the reception of type bars 31. and is also provided with end cap 66 having book 67 for engagement with one ad of said bars. The other end of said bars is engaged by book 6.) of slida blo end cap 68 fixed to push rod (32 by pin 71. Said pin is free to move endwisc in slot 72 of shaft 33. Rod 62 may be urged endwise against spring 63 by means of. hand lever 73 pivoted at 7-1 in stud 76 inreaehiug from side frame 5. Said lever 7 3 located so as to be in ope .able relation to a form cylinder when said cylinder is in one. of its positions of rest in its revolution about axial shaft 26 and when i cylimler is at rest relative to the carrier. l fillll Vllllll(1' 40 is illustrated in the described position relati ve to lever 71%. J and lever is pro vidcd at th next cylinder station (1400) so that if th operator fails to make the ex- (.:hange of i m by means of lever T he has a second opportunity at the next succeeding p of the cylinder.

[nzcwmri [cnt (Dine for rurm'c'i'.-lntcrniittent gear J3 is n'ovided with loch faces 10], alternating with the toothed portions thereof, for engagement with locking face 102 of mutilated pinion 27. Said lock faces 101 and alternating toothed portions of intermittent gear 28 correspond in number with the number of form cylinders as 4-0, and the relative lengths of the toothed portions of gears 27 and 28 are such as to cause gear 27 during a portion of one rotation to impart to gear 28 an angular advance equal to the angular distance between adjacent form cylinders and during the remainder of said rotation. to lock said gear 28 against rotation. v

Mutilated pinion 27 fixed to shaft 29 is actuated intermittently, one revolution at a time by the following means: 011 the rearward outboard end of shaft 29 gear 7 0, having clutch 77 formed on the hub thereof, is mounted for free rotation. Complementary clutch 79 is slidably mounted on said shaft 29 for engagement with clutch 77 and is prevented from turning relative to said shaft by key 78 which passes axially through elon' gated slot 81 therein. and engages opposite slots 82 in said clutch 79. Spring actuated plunger 83 in shaft 29 innqinges upoii key 7 8 and thus urges clutch 79 into engagement with clutch 7 7. Clutch 77 and gear 70 are rotated continuously by means to be de scribed later herein. Clutch 7 9 has an car 89 for engagement with cam arm 84 fixed to rock shaft 85. ltocl; shaft 85 is actuated at predetermined times to swing cam arm 8 1 in a clockwise direction (Fig. 1) out of engagen'ient with car 89 to allow spring 830 to urge clutch 7 S) into engagement with clutch 77 to rotate shaf 29 and gear 27 by the following means: On shaft 86 worm gear 80 is mounted for free rotation in engagement with worm 90 on shaft 96. Norm gear 80 is actuated alternately in opposite directions by said worm 90 as hereinafter more fully described. Mounted on the inner face of worm gear 80 is spring urged pawl 87 for engagement with arm 88, fixed on rock shaft 85, when said worm gear 80 is rotated in an anticlockwise direction (Fig. l). Shaft 85 is constantly urged in an anticlockwise direction by means of spring actuated plunger 91 in engagement with arm 92 of shaft 85, and the duration of engagement of pawl 87 with arm 88 is so timed that said arm 88 is released before clutch 77 has driven clutch 79 one revolution and cam arm til therefore engages c; r 89 as it approaches the end of its first revolution and withdraws clutch 79 from engagement with clutch 77 at the close of one revolulion thereof. (llulch 79 and shaft 29 are stopped and held against rotalion at the end ol said one revolution by the engagement of notch lll of disk H2 fixed to 'aid shaft 25 with spring arm 14-3 fixed to frame 4.

(v'orcrniny utmnsfor i/YIWI'IH/Hfl/l/r /(i,- lVorm shaft 96 is mounted in bearing -I- outreaching from side frame -l and has worm gear 95 fixed to the right hand end thereof (Fig. 1). {Said worm gear is driven continuously in one directionby worm 97 on sleeve 98 of ear 99. all turning together on stud 103, in ame 4. Gear 99 is driven by gear104 slidably mounted on shaft 26 of carrier 30. iSaidgear 104 is driven from i said shaft,26 by, key 705, and may be moved a 110, shiftable endwiseout of engagement with gear 99 by means .of sli'dable yoke 106 actuated/by hand rotated-pin 07in engagement, with cam108 in the hub of yoke 106. Worm 90 comprises ,twoeiroumferential ribsor teeth 90*, 90. out awayat'one portion thereof by the insertionof l.oscillatable".p lug 109 having rib the rotation of said plug,

' afrom coincidence'at one end-of said rib 110 LPfeaari so and aim other-end with rib 90, tot-he opposite position relative to said 20 V 'placeby screws as 145 eificient to retain I plug .169 inplace by e'ngagement with head 100gthereof. Plug 109 is' with arm 153,suitably fixed to said'worm gear 80. Plug 109 has notches 154, 155 in "head 100 for. engagement with spring actuat'ed detent156, for reta ning said plug 109 alternately in its two operable positions. Selective mechanism for governing interm'i'ttent driver-The means for moving arm 153 about axis 86 and for setting it relative to arm 152 for varying the number of rota-. tions of worm 90 for rotating worm gear 80 in one direction comprise the following (Figs. 1, 2, 3): Worm gear 80 freely mounted'on'shaft 86 in sleeve 354 fixed in frame 4 has sleeve 160 inreaching therefrom and has gear 161 fixed to the inner end thereof.

Said gear 161 drives gear 162 fixed to the inner end of sleeve 163. Said sleeve 163 has a bearlngin sleeve 164 fixed to frame 4 and has bevel gear165 fixed to its outboard end.

Bevel gear 165 drives bevel gear 166 fixed to the lower end of sleeve 167 having a bearing in bracket 168 on frame 4. Disk 170, having notches 171 therein, preferably corresponding in number with the teeth ofworm gear 80, is fixed to the upper end of said sleeve 167 The train of mechanism just described from worm gear 80 to notched disk 170 is a close connected train to cause disk 170' to rotate in synchronism with worm gear 80. Shaft 86 of arm 153 has gear 355 fixed to its inner end and said gear meshes with gear .356 fixed to the inner end of shaft 157 rotatably mounted in sleeve 163. Bevel fromarm 153 to of engagement of gear 158 is fixed to the outer end of said shaft 157 and meshes with bevel ar 159 on the lower end of shaft 169 rotata ly mounted in sleeve 167. To the upper end of shaft 169 is fixed head 17 2 having ears 173 between which locking lever 174 is pivoted. Said locking lever 174 end for engagement with notches 171 ofdisk 170. Said tooth 175 is urged to engage any selected notch'by means of spring imgell plunger 176 coaxially mounted in she .169, in engagement with the under side. of lever 174. Head 172 is provided with pointer 177 to read against graduations, not shown,onthe upper face of disk 170.

The train of mechanism Just described lever 174 is a close connected train and is efiicient to rotate arm "153 atv will by first pressing downwardly ,handle 17 5 from notched disk 178 to unlock tooth 170 and then rotating said lever-174. Then by releasing said handlea178 and lockin tooth 175. in a selected notch of dis .170 arm 153 is locked relative to worm gear 80 and will be rot-atedas-a fix'ed member thereof.

The mechanism about shafts 157 and169 is furnished to afford convenientmeans forsetting arm 153 relative .to arm 152 on, worm and arm 153 efficiently adjusted and set by direct manipulation.

r Speed changing mehanism.- For rotate ing carrier outundue jar or strain, the speed of rotation of clutch gear 7 Dis reduced at the time clutches 77, 79 and then increased to normal -speed after the rotary shift of said carrier and atlthe time of disof said-clutches. Main power engagement shaft 140 is of tubular construction and has bearings in side frames 4, 5. Rearward of frame 5 gear 189 is fixed to said shaft and main pul ey 190 and slow speed pulley 191 turn freely on said shaft. Between pulleys 190 and 191 and for engagement with either thereof, friction clutch 179 is mounted for endwise movement on said shaft 140 and is held against rotation relative to said shaft by keys 181, 182 fixed in hub 183 of said clutch 17 9, but slidable in slots 184, 185 respectively in said shaft. Said keys 181, 182 transfix rod 186 slidably mounted in tubular shaft 140 and are actuated endwise said shaft to cause friction clutch 17 9 to engage either 'pulley 190 or 191, or to remain in a neutral position therebetwoen. Rod 186 is also transfixed by key 187 fixed in sleeve 188 slidably mounted on shaft 140, which gear 80 but said mechanism could beomitted- 30 from station to station withioe last is supplied with slots 192, 193 for the passage of said key 187. Sleeve 188 has oilvided with circumferential rib 197 having beveled sides for engagement with spring arms 198 of hub 199 fixed to shaft 140 for retaining sleeve 188 at either end of its throw to hold friction clutch 17 9 in coaction with pulley 190 or 191 as may be. Rock shaft 196 is revolubly mounted in bracket 200 fixed to frame 5 and arm 201 is fixed to the lower end of said shaft. Arm 201 is bifurcated at its free end and has pivotally mounted therein one end of rod 202. The other end of said rod is pivotally mounted in the bifurcated free end of arm 203 fixed tothe lower end of rock shaft 204 rotatably mounted in bracket 205. Said arm 203 is a bell crank arm and has member 2030 thereof extending approximately parallel with rod 202 and cam roll 208 is mounted in the free end thereof for engagement with rock cam 20S) fixed to rock shaft 85. At the upper side of bracket 205 arm 206 is fixed to rock shaft 204'and has cam roll 207 mounted at its free end for engagement with cam 211 on shaft 29. Hand operable means for rocking shaft 204 to throw clutch 179 into engagement with either of pulleys 190 or 191 0r to throw said clutch out of engagement with both pulleys and thus stop the machine comprises the followingzConical segment 212 is fixed coaxial with shaft 204, in bracket 213 of frame 5 and coacting segment 214'is pivotally fixed to shaft 204. Hand'lever 215 has one end thereof pivoted for universal movement at 217 on shaft 204 and is provided with wedge-shaped tooth 216 (Fig. 14) for engagement with either abutment 218, 219 of segment 214 to rock shaft 204, or for coengagment with central notches 321, 322 of segments 212, 214 respectively to stop the machine.

Driving germ'ng.-Gear 180 on main drive shaft 140 drives gear 245 fixed tostamp form cylinder shaft 221, through intel-mediate 246. Gear 245 drives gear 247 fixed on impression cylinder shaft 19 and gear 247 drives both gear 248 fixed on fold ing cylinder shaft 7 and gear 249 of receiving cylinder 10. Gear 250 of ink receptacle shaft 45 and gear 251 of ink receptacle shaft 224 are driven from gear 245 through intermediate gear 252. Gear 253 of ink cylinder shaft 281 is driven from gear 251 through intermediate 2540. Gear 247 drives equal gear 254 of form cylinder carrier shaft 26 through intermediate 255 and gear 256, also fixed to shaft 26, drives clutch gear of half its diameter turning freely on shaft 29. Gear 258 on shaft 133 is driven from gear 255 through intermediate gear 257.

O7)e'razt0n .lhe operation of my improved envelop printing mechanism is as follows: Pulleys 190 and 191 being rotated in the direction of their arrows from some suitable source of power by the usual belts not shown and wedge 21.0 of hand lever 215 being in full engagement with notches 321,

322 of segments 212, 214 respectively clutch 179 is free of both said pulleys which there: fore turn freely and idly on shaft 186. Le ver 215 3) now being lifted and swung into engagement with abutment 218 of segment 214 said segment is forced toward frame 5 (Fig. 14) and through rock shaft 204 and the connecting links between it and clutch 170 (Fig. 5) said clutch is forced into engagement with high speed pulley 190 and the machine started; An envelop blank being now delivered over table 8 in proper time is gripped by clips 15 to advancing receiving cylinder 10 and conducted in a clockwise direction therewith and delivered the other side up to the grip of clips 22 of one of the airs of beds as 21, 210 of impression cylinc er 20. Said impression cylinder 20 conducts the blank in an anticlockwise direction to receive the im pression of the form inform cylinder 401 and thence downwardly to receive the'impression of the stamp form as 222 in cylinder 220. Said blank is then conducted upwardly and delivered to one of the folding beds as 235 of folding cylinder 240, being gripped to said bed by clips 236, 236. As said cylinder rotates onwar'dly in a clockwise direction, end folders 237 fold the end flaps of the blank and folders 241 fold the bottom flap thereof. Said blank may then a operated upon by other means not shown. to. complete the envelop. Ink delivery roll 31 and ink receiving roll 32 revolve constantly in coaction with each other except during the'intermittent rotation of carrier 30 and coact to deliver ink to their adjacent form cylinder at all times when that cylinder is rotating. Said form cylinder is started in rotation two stations before its station of coacti'on (402) with the impression cylinder so as to afford sufficient time for'thorough inking before being brought into printing position. Ink is delivered to ink delivery roll, as 31 only when saidroll is in position 301 with its coacting printing form cylinder in printing position. When said ink delivery roll reaches said position 301. it establishes connection with its source of supplv in receptacle 44 through the several rolls 1320, 132 and 130} Ink is delivered to the stamp forms on cylinder 220 by rolls 229, 230. Said rolls are' supplied with ink from receptacle 223 by intermediate rolls 228 and 227. By means of cam 138 the form cyl1nder gears 50 are held in mesh with constantly rotating gear 52 half the time from position 402 to position 401 inclusiye, and said form cylinder gears 50 are held in mesh with gear 51 fixed relative to' carrier 30' during the other half of their. revolution about carrier 26. During this latter period of rest, relative to their own axes, their printing forms are in position 40 (Fig.

4) relativeto carrier 30 and in which position 209 thereon into engagement with said form cylinder presents its plunger 62 (Fig. 9) for engagement with lever73, by which said form may be unlocked, and then removed and a different form substituted therefor. In case the operator fails to make the desired shift of forms at said position 40, a second lever 7 5 is located for coaction with said plunger62 at its next station 400. Pawl 87 in its upward movement in engagement with arm 88 rocks shaft 85 and cam the roll on arm 2030 of shaft 204 and through the described arms and rods is effective to throw sleeve 188 to the left, and clutch 179 out out of engagement with high speed pulley 190 and into engagement with low speed pulley 191, all as shown in Fig. 5. At the same time cam arm 84 on said rock shaft 85 swings out of engagement with ear 89 of clutch 79 which last is thereupon urged into engagement with clutch 77 of gear 70 by spring actuated plunger 83. This starts shaft 29, having mutilated gear 27 fixed thereon, in rotation and the toothed portion of said mutilated gear promptly engages the contiguous toothed portion of intermittent gear 28 of carrier 30 and turns said carrier one sixth of a revolution. Said mutilated gear 27 engages said carrier intermittent gear directly after the form cylinder then in coacting relation with the impres'sion cylinder has made its last rotative engagement therewith and at which time said form cylinder has advanced on its own axis one third of a revolutionv from the position in which it is illustrated. in Fig. 4. During the intermittent rotation of carrier 30 its gear 51 travels in unison with gear 52 and said gears have their teeth respectively in line so that gear 50 may be and is slid endwise on shaft 33 during its movement upward with carrier 30, from engagement with gear 52 to engagement with gear 51, and said form cylinder remains at rest relative to carrier 30, with its form in the position shown at 40 i. At the same time the form cylinder that is passing from position 400 to position 402 has its gear 50 moved endwise from engagement with gear 51 to engagement with gear 52 and when said form cylinder has reached position 402, carrier 30 and gear 51 come to a state of rest and gear 52 continues its revolution thereby starting pinion 50 and its form cylinder revolving. Directly following the completion of an incremental movement of carrier 30 the high part of cam 211 engages the roll on arm 206 and rock shaft 201, and through the described connections throws clutch 179 out of engagement with slow speed pulley 191 and into engagement with high speed ulley190. In Fig.1 arm 153 is shown in its nearest relation to arm 152 fixed-to worm geari80 and in position to shift rack 148 to reverse the direction of travel of worm gear 80 to produce the minimum number of impressions for which the machine is settable. By moving tooth 175 ina clockwise direction, Fig. 3, to engagement with the next succeedin notch in disk 170, arm 153 W111 be moved in an anti clockwise direction -(Fig. 1) one tooth distance farther from arm 152 thereby doubling the minimum number of coacting impressions of the form cylinder which has last come into printing position relative to the impression cylinder. Thus by moving said tooth 17 5 ma clockwise direction from notch to notch of disk 170, said number of impressions of the form cylinder in coaction with the impression cylinder can be increased at will in increments corresponding with the minimum number of impressions which the machine is timed to make. It is obvious that by modifying the ratio of gearing said increments of increase can bear other relations to said minimum number.

I claim 1. An'envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier. to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cooperating form cylinder in synchronism with the impression cylinder and means for varying the number of coacting revolutions of a form cylinder with the impression cylinder.

2. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylindeiy means for continuously, rotating the cooperating form cylinder in synchronism with the impression cylinder and settable means for governing the number of coacting revolutions of each form cylinder with the impression cylinder.

3. An envelop printing mechanism ineluding in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier which the form cylinders are rotatably mounted and means for intermittently rotating the carrier to move ne form cylinder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between successive impression periods and without stopping the impression cylinder.

1. An envelop printing mechanism includcarrier in which the form cylinders .are rotatably mounted, means for intermittently rotating the carrier to move one form cylnder out of cooperative relation with the lmpression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between successive impression periods and without stopping the impression cylinder and settable means for automatically governing the periods of rest in the intermittent revolution of the carrier.

5. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to move one form cylinder out of vcooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between-successive impression periods and without; stopping the impression'cylinder and means for continuously rotating the cooperating form cylinder in synchronism withthe impression cylinder.

6'. An envelop printing mechanism in-,

eluding in combination, an impression cylinder, a plurality of form cylinders, a rotatable, carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to move one form cylinder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between successive impression periods and wlthout'stopping the impression cylinder, means for continuously rotating the cooperating form cylinder .in synchronis m with the impression cylinder and set table means for automatically governing the number of ooacting revolutions of each form cylinder with the impression cylinder.

7. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cooperating form 0 linder in synchronism with the impression c linder and means for alternately reducing and increasing the speed of the means for intermittently rotating the ,carrier,

/ 8. An envelop printing mechanism including in combination, an impresslon cylinder,

a plurality of formcylinders, a rotatable carrier in'which the form cylinders are roi'atably mounted, means for intermittently rotating the carrier to bring the formcylinders successively into cooperative relation with the impression cylinder, means for contmuously rotating the cooperating form cylinder in synchronlsm with the impression cylinder, means for alternately reducing and are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cooperating form cylinder in synchronism with the impression cylinder, means for alternately re ducing and increasing the speed of the means for intermittently rotating the carrier and settable means for automatically governing said carrier rotating means and said speed reducing and increasing means to determine the number of coacting revolu-' tions between each form cylinder and the impression cylinder.

.10. An envelop printing mechanism ineluding in combination, an impression cyl inder, a plurality of form cylinders, a rotatable carrier in which theiorm cylinders are rotatably mounted, means for intermittently rotating the carrier to move one form cylinder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between successive impression periods and means for alternately reducing and increasing the speed of the means for intermittently rotating the carrier. p a

11. An envelop-printing mechanism in cluding in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to move one form cylinder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder, means for alternately reducing and increasing the speed. of the means for intermittently rotating the carrier, means for stopping the rotation of each form cylinder relative to the carrier when said cylinder is out of cooperative relation with the impression cylinder and means positioned for cooperation with each form cylinder when said cylinder is out of cooperative relation with the impression cylinder for releasing the form in said form cylinder.

12. An envelop printing mechanism cluding in combination, an impression cyltently rotating the carrier to move one form 0 linder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation with the impression cylinder during the interval between successive im ression periods, means for alternately re ucin and increasing the speed of the means tor' intermittently rotating the carrier, means for stopping the rotation of each form cylinder relative to the carrier when said c linder is out of coiiperative relation with the impression cylinder and means positioned for cooperation with each form cylinder during a rest period of the rotating carrier and when said cylinder is out of cooperative relation with the impression cylinder, for releasing the form in said form cylinder.

13. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means'for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cotiperating form cylinder in synchronism with the impression cylinder, ink distributing means mounted on the carrieradjacent to and for coaction with each form cylinder and ink supplying means adjacent to said carrier for successive coaction with the several ink distributing means.

14, An envelop printing mechanism including in combination, an impression cylinder, a plurality of'form cylinders, a rotatable carrier in which .the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cooperating form cylinder in synchronism with the impression cylinder, ink distributing means mounted on the carrier adjacent to and for coaction with each form cylinder, ink supplying means adjacent to said carrier for 'SUCCQSSIVG coaction with the several ink distributing means and means for causing each form to coact with its ink distributing means prior to the bringing of said form into coacting relation with the impression cylinder.

15. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the'form cylinders successively into cooperative relation with the impression cylinder, means for con tinuously rotating the cooperating form cylinder in synchronism with the impression cylinder, means for varying the numberpf coacting revolutions of a form cylinder with the impression cylinder, ink distributing A rotatablymounted, means for intermittently rotating the carrier to bring the form cylinders successively into coiiperative relation with the impression cylinder, means for continuously rotating the cotiperating form cylinder in synchronism with the impression cylinder, means for varying the numberpf coacting revolutions of a form cylinder with the impression cylinder, ink distributing means mounted on the carrier adjacent to and for coaction with each form cylinder, ink supplying means adjacent to said carrier for successive coaction with the several ink distributing means and means for causing each form to coact with its ink distributing means prior to the bringing of said form into coacting relation with the impression cylinder.

17. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which thecform cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cotiperative relation with the impression cylinder, means for continuously rotating the cooperating form cylinder in synchronism with the impression cylinder, means for alternately reducing and increasing the speed of the means for intermittently rotating the carrier, ink distributing means mounted on the carrier adjacent to and for coaction with each form cylinder and ink supplying means adjacent to said carrier for successive coaction with the several ink distributing means.

18. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rota table carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation increasing the speed of the means for intermittently rotating the carrier, ink distributcylinder, means for alternately reducing and ing means mounted on the carrier adjacent to and for coaction With each form cylinder, ink supplying nieans adjacent to said carrier for succcssive-coaction with the several ink distributing means ,and means; for causing each form to coact with its ink distributing means prior to the bringing ot said form into coacting relation With the impression cylinder.

19. An envelop printing mechanism including in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to bring the form cylinders successively into cooperative relation with the impression cylinder, means for continuously rotating the cooperating form cylinder in 'synchronism with the impression cylinder, a secondary revoluble form cylinder for coaction with the impression cylinder and means for rotating the secondary oylinder in synchronism with the impression cylinder. 1

20., An envelop printing mechanism ineluding in combination, an impression cylinder, a plurality of form cylinders, a rotatable carrier in which the form cylinders are rotatably mounted, means for intermittently rotating the carrier to move one form cylinder out of cooperative relation with the impression cylinder and simultaneously to move another form cylinder into cooperative relation With the impression cylinder during the interval between successive impression periods and Without stopping the impression c'ylinder, means for continuously rotating the cooperating form cylinder in synchronism with the impression cylinder, a secondary I revoluble form cylinder for coaction with the impression cylinder and means for rotating the secondary cylinder in synchronism with the impression cylinder.

Signed this 31st day of January nineteen hundred and ten (1910) before two subscribing Witnesses. i

CHARLES F. SMITH. Witnesses:

HOWARD MARSTON, ELMER H. HoUoK.

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