US1286324A - Machine for casting and finishing curved stereotypes. - Google Patents

Description

APPLICATION FILED SEPT-22. IQH.

Patented Dec. 3, 1918.

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c. E. HOPKINS. v MACHINE FOR CASTING AND FINISHING CURVED STEREOTYPES.

APPLICATION FILED SEPT-22 IBIZ- ,3% Patented Dec. 3, 1918.

9 SHEETS-SHEET 3.

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. .C. E. HOPKINS.

MACHINE FOR CASTING AND FINISHING CURVED STEREOTYPES.

APPLICATION FILED SEPT-22. 19H.

Patented M13, I918 9 SHEETS-SHEET 4- E "anus I'EILIIIS m. rnmugga. Ill-summon. n. c.

'- C. E. HOPKINS.

MACHINE,FOR.CASTING AND FINISHiNG CURVED STEREOTYPES.

APPLICATION FILED SEPT- 22. 19H.

Patented Dec. 8, 1918.

9 SHEETS8HEET 5- y ath-24 c. E, HOPKINS. MACHINE FOR CASTING AND FINISHING curzvao STEREOTYPES.

APPLICATION FILED SEPT-22. 19H. g fim Patented Dec. 3, 1918.

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a? @5522, riliullll n1 1| 4 0:5 HOPKINS. MACHINE FOR CASTING AND FINISHING CURVED STEREOTYPES.

APPLICATION FIL ED SEPT.22. IQII.

Patented Dec. 3, I918.

9 SHEETS--$HEET 7- C; E HOPKINS.

MACHINE FDR CASTING AND FINISHING QURVED STEREOTYPES.

APPLICATION man sEPT.22. Ian.

Patented Dec. 3, v 1918.

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C. E. HOPKINS.

MACHINE FORCASTING AND FINISHING CURVED STEREOTYPES.

APPLICATION FILED SEPT-22.1917.

Patented Dec. 3, 1918.

9 SHEETS-SHEET 9- cHnnLEs E. norxms, on NEW YORK, n. Y. i

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Specification of Letters Patent.

Patented neeaiaie.

Original application filed March is, 1907, Serial no. 362,111. Divided and. this application filed. September y 22, 1917. Serial 110,192,771.

To all whom it may concern:

Be it knownthat I, CHARLES E. HOPKINS, a citizen of the United States, residing at New York, in the county of New Yorkand State of New York, have invented a new and useful Machine for Casting. and FinishingCurved Stereotypes, of which the following is a specification.

a This is a division of .my Patent No.

1,240,850 granted September .25, 1917, on apparatus for finishing curved stereotypes originally filed Mar. 13, 1907 k The present invention consists of im; provements in apparatus for transferring,

from the casting boxes into position to be finished, curved stereotypes such as are cast in that described in the specification of British Letters Patent 12850 of 1903 and a 4300 of 1906 and U. S. Patent .7 33,202. The

apparatus described therein included hand means for transferring the newly cast and therefore unfinished stereotype from stereotypetransferring frame D to thetop surface of a drum on stereotype receiver. The specification of an intermediate Patent 19333 of 1905 described a finishing appara tus inwhich the newly cast stereotype was placed upon a receiver and moved by hand along the latter to a hollow cylinder.

The objects of the present invention are to improve some of my prior inventions in this line, in which certain relationships are shown between a stereotype receiver and the finishing mechanism, so as to provide a receiver independent of all cutting means and so related to the casting box as to receive the stereotype therefrom and bring it into proper position at the end of the finishing, mechanism to slide directly into thelatter longitudinally; to provide an improved receiver in the form of a skeleton frame for receiving the stereotype directly from the casting box, and to provide improved means for removing the plate from the mold in. which it is cast and leave it in position to be finished.

Referring to the accompanyingdrawings which are to be taken as part of this specification and read therewith, y l y s Figure 1 is a front elevation showing the improved associated casting apparatus and receiver in the f at rest position;

Fig. 2 is a side elevation corresponding with Fig. 1; a s

Fig. is a plan corresponding with the a. rest 7 esaion of Fig. 1, butqomitting the stereotype; y Figi 4; an enlargedfront elevation showing three difierent positions of the stereo type carrying framehand its cooperation with thestereotype receiver; s

Fig, 5 a sectionalfront elevation showing thexcoioperation of the stereotype receiver with the starting lever of the finishing ap- PM W Fig. 6 is a left-hand side. eleveation of Fig. Sloolringat it, in thedirection of the arrow;

Fig. 7 is an enlarged section of part of the driving connections;

Fig. 8 is an enlarged side elevation, looking at Fig. 9 in the direction of thearrow, l

of the same connections;

Fig.9 is an enlarged front elevation and a section corresponding with Figs? and 8; Fig. 10 is an enlarged detail side elevation of the starting rod. and connected parts, in the 9 at rest position, and a s Fig. 11 is a like elevation of. the same parts when the stereotype is on the receiver, the detent disengaged from the ratchet wheel and the driving clutch on the point of being closed. s

s In the apparatus of British Patent No. 12,850 of 1903, the stereotype was cast between afixed upright cope O and a drag movable away from it. The drag carried a transferring frame D semi-circular in front elevation and the newly cast stereotype lay. upon it, printing face downward, asshown in Fig. 1 hereof. It is. pivoted by the pivot (Z7 to the respective side of the bottom D of, the drag, asshown in Figs. 1, 3 and 1, so that swinging it upward and to one side,

i puts the said stereotype into a reversed pos1- off the riser and valve slug and beveled the ends ofthe stereotype. p According to the present invention, the receiver is independent of all cutting means, is located at the end of the finishing mechanism, and is a semi-circular frame instead of a drum, suchframe consisting of two segments 19 and 20,connected by two parallel 21, 22, each .having a horizontal ledge 23, 9A the latter being positioned to receive and support the said stereotype as shown best in Fig. 4, the segments being cut away along the line 35 Fig. 4, to enable the transverse ribs 25, Fig. 4, and the sprue 35 that is cast in the valve nozzle 45 of the cope C, to clear them when the conveyer pulls the stereotype off the receiver. The ledge 24 has a central ridge 24'*Fig. 4 extending for the full length of it to engage in a corresponding groove in the respective side edge of the said stereotype. It is similar to the angle bar 103 of the British Patent 4300 of 1906 and serves the same purpose. The segments 19, 20 stand well within the length of the printing face of the stereotype 100, as shown in Fig. 2, in order that the riser 26 and valve slug 27 as well as the lug 28 on the concave face of the riser 26, and which the conveyer seizes hold of when the latter has to pull the newly cast stereotype off the receiver 19-24, into the hollow finishing cylinder 213, may all three overhang the said segments. This receiver is pivoted by lugs 29, 30, which radiate from its segments 19,20, at-about its center, to the adjacent ends of levers 31, 32, fulcrumed on a fixed axis 33 in the frame 34 of the finishing apparatus. The opposite ends of the said levers carry rollers 36 and extend far enough toward the pivot line d of the frame D for the said rollers to be engaged by projections 37 on the latter. Which projections will, when the frame D is swung up, rock the said opposite ends downward, and the receiver 1924 upward and toward the then approaching stereotype, as shown by the set of dot and dash lines A in Fig. 4. Further, this receiver is connected by links 38, 39, which are pivoted by their respective ends to pivots'40 located between its center and the side of it next to the frame D with a rod 41 on the frame 34, below the fulcrum line of the above mentioned levers 31, 32. The effect of such linkage is to rock the rising receiver far enough over to meet the rising stereotype, so that when they do meet, their circular contours shall be parallel with each other.

This improved receiver is so mounted and located in the apparatus with reference to the finishing cylinder 213, that when it has an unfinished stereotype upon it, its axis is a little lower than that of the finishing cylinder and a little to one side-the rightof it. The linkage just mentioned has the effect of making the improved receiver 1924 hold the top of its ledges 23, 24 in the horizontal plane when the newly cast stereotypeis ready for the conveyer to push it toward the finishing cylinder. 40 is a so-called starting-lever fulcrumed upon the frame 34, having its longer arm under the edge 7 9 of the receiver and its shorter and opposite arm engaged with the top end of a starting rod 41. The spring 44 is preferably a spiral one surrounding the rod 41 and resilient between the guide 42 and a collar 145 beneath it and fast on the rod 41. 46 is a collar fast on the same rod 41 above the guide 42 to prevent the return of the rod 41 rocking the nose of the lever 40 too high for the side edge 7 9 to engage with it. The weight of the rod 41 supplemented (it may be) by a weak spring 44, is relied on to return it. 42, 43 are guides fast on the frame 34, for the rod 41 to slide in. The starting rod 41 has a bell crank lever 47 fulcrumed on it, (Fig. 6) this lever being generally parallel with the rod 41 and kept so by a spring 48 and a stop 49, the latter on the rod 41. The spring 48 is preferably a spiral one resilient between a lug 50 on the rod 41 and the top arm of the lever .47 and supported in its working position by a straight rod 51, fast by one end to the lug 50 and having the other passed through a hole in the said top arm of the lever 47, so that the latter can work freely over it. 52 is a lug on the lever 47 and 53 a projection on the side of a detent 54 pivoted on a fixed stud 54 55 is a ratchet wheel combined with the driving clutch and is a spring pulling from a fixed point in the frame 34 and on the detent 54 to engage it with the wheel 55.

The driving shaft extends lengthwise of the frame 34 and is rotated constantly through a driving pulley 81. V A worm 82 fast on it, drives a worm wheel 83 which is loose on a transverse shaft 84 in the rear end of the frame 34. The inner face of this worm wheel 83 is hollowed out to embrace several equally distanced driving pegs 84 fast to it and projecting from it in lines parallel with its axis, as well as a driving clutch 85 fast on the transverse shaft 84. This driving clutch 85 has a radial driving pawl 86 pivoted on it, and a spring 87 fast to the clutch 85 and pulling the pawl 86 into the path of the pegs 84. Next to this driving clutch 85 is the ratchet wheel above mentioned, loose on the transverse shaft 84, and having a radial driving arm 88 pivoted on its side and near its periphery, by a pivot 89 that is parallel with the shaft 84. driving pin 89 is passed through the nose of the driving arm 88, the ratchet wheel 55, the driving pawl 86 and the driving clutch 85, holding the four together. But the ratchet wheel 55 has an arcuate slot 90 about the pin 89 to allow of it moving independently of the other three pieces 85, 86 and 88.

The finishing cylinder 213 is located on bearing rings 215 in front of the stereotype receiver 1924 (already described) and ap proximately axially alined with the lower position of the latter. 218, 219 are two supports for the unfinished stereotype. They project radially inward from the internal face of the cylinder 213, the former fixed and the latter movable nearly vertically, butboth standingat the same level and in the same plane as the stereotype supportsonthe re ports 218, 219. i

The stereotype 100 stands with one side edge of the fixed support 218 at a short distance from the adjacent cylinder face and with the opposite edge on thevertically movable support 219. l

. Operation.

The plate being cast; the drag is moved out on its wheels 01 along a horizontal track d and tipped to horizontal position with an unfinished stereotype lying on the frame 1) ready for removal tothe receiver 19 24 Figs. 1, 3 and 4. This removal is effected by rocking the frame D onitspivot 01', whereby the concave face of the stereotype and the top of the receiver 19 24, meet, as shown by the dot and dash lines A of Fig. 4, the frame D being thereupon swung down upon the hottomD"again (asindicated by dot and dash lines B of the same figure) so leaving the stereotype upon the receiver,-as in the Patent 12850 of 1903. As the iniproved receiver 19-24is rocked up by the engagement of the frame D withit, the starting rod 41 drops, raisesthe left hand end of the starting lever .(Fig. 5, dot and dash lines), carries the stud2'71 on the lever 47 down clear of the stud 270 on the radial arm 2'65, and the lug52 (likewise on the said lever 47 below the level of the projection 53 on the detent 54. As soon asthe stud 271 clears the stud 270, the spring48 rocks the depending arm of the bell-crank lever .47 up to the stop 49, thereby placing the lug52 vertically under and a little below the projection 53 Fig. 8. The receiver 19.24with the unfinished stereotype on, it, drops below its former position (theone shown by thedot and dash lines in Fig.5)[intotlie one shown by the full lines in Figs. .4 and 5. HAs it drops, its side79 again, engagesthe adjacent arm of the starting 1ever40? and raises the starting rod 41, thereby making the lug 52 engage the ljprojection .53 ion the detentf54 and disengage the latterfronf the vv'heel55 (Fig. 11), whereupon the spring srpuus the ratchet wheel 55 thmughfa short are, thanks to the slot90, and inthe working div rection, thereby rockingthe drivingpawl. 86

about the driving pin 89*iiitothe pathof the driving pegs 84, whereby the next following peg. 84 ficomes up to the driving pawl 86, closesthe drivingclutch and starts the shaft 84. During the lastmentionedrise of the rod 41, thestud 271 found the stud 270 inits path and rocked it to the rear, thanks to the pivot 266 and spring 267. I i

The cam 262 begins to turn with the shaft 84 and worm wheel 92 to which the cam is finedly connected. Atthat mon1ent,the con-f veyer finger 247? stands in its rearmost position,Fig. 2;full lines,the weight ofthe un finished stereotype *holdingfthe finger 247 down in the conveyer head 246 and the bottom of theslot 249 holding the front portion of the stereotypeup, but at an angle too small to show in the figure. The cam groove 261 makes the conveyer move to the front,

through the operation of rock shaft256, arm

255,and links 257 and 25'4,far enough to de posit the unfinished stereotype uponthe cylinder supports 218,219. The stereotype havstops the conveyer.

The act of clamping the untrimmed stere During the rotation of thecylinder 213, and while the stereotype,jas it is being finished, is

moreorless belowa horizontal diameter of thecylindenthe cam groove 261 moves the conveyer to the rear,stopping whenthe finger ing been thus deposited, the cam groove 261 loo 247? has passed beyond the rear end of the finished stereotype 100, Fig. 2, dot anddash linesb. During the time theconveyer is so lowering brings thetop of the stereotype 100 low enough for the finger 247 to engage its rear end The cylinder 213 being no locked, the cam groove 261 moves the conveyer to the frontagain thereby causing the finger" 247 to eject the stereotype 10OFig.

2,dotand dash and section lines 0. As soon asthe ejection is effected, the said groove re turns. the conveyer to the rear of the apengage the stud 271, thereby rocking the depending arm or thebell-crank lever 47 t0 the rear and moving the lug 52 from under the projection 53 on the detent 54, where upon the latter ispulled byits spring75 into engagementwith the ratchet wheel 55" j thereby opening the driving clutch andbrlnging the. apparatus to the at rest Although I haveillustrated and described a preferred embodiment of the invention dejparatus, the arm 264, .265 making thestud any person skilled in the art without departing from the scope of the invention as expressed in the claims, Therefore I do not wish to be limited to all the details of construction herein shown and described, but what I do claim is 1. In a stereotype machine, the combina tion of castingv apparatus, finishing apparatus, a receiver adapted to receive a stereotype from the casting apparatus and to bring it into the proper position for being slid into the finishing apparatus, and means for sliding the stereotype from the receiver into the finishing apparatus.

2. In; a stereotype machine, the combina-.

tion of casting apparatus, finishing apparatus having a rotary cylinder, a receiver adapted to be brought into register with one end of the cylinder, and means to transfer a stereotype longitudinally from the receiver to the cylinder. 3. The combination with a horizontal finishing mechanism and an upright casting mold located beyond the end but at one side thereof, said mold having a drag movable down to horizontal position also at the end of the finishing mechanism but at one side thereof, and means for moving the cast plate from the drag to a position at the end of the finishing mechanism and in alinement therewith.

4c The combination with a horizontal finishing mechanism and an upright casting mold located beyond'the end but at one side thereof, saidv mold'having a drag movable down to horizontal position also at the end of the finishing mechanism but at one side thereof, means for moving the cast plate from the drag to a position at the end of the finishing mechanism and in alinement therewith, and means for automatically sliding the plate longitudinally into the finish- 6. The combination with one member of' acasting. box adapted to cast a plate, of means for dehverlng the plate from said member with its prlnting face down, means for inverting the plate and moving it laterally, and a finishing mechanism in alinement with but beyond the end of the position ofthe plate when inverted.

Ina curved stereotype plate making,

machine, the combination of a'casting mechanism, a finishing mechanism arranged out of alinement therewith, means for delivering a stereotype plate cast in the casting mechanism into alinement with the finishing mechanism, supports in the finishing mechanism for the plate, means over which the plate can be moved to said supports, and means for effecting a relative rocking movement between the supports and finishing mechanism to hold the plate.

8. In a. curved stereotype plate making machine, the combination of a casting mechanism, a finishing mechanism, means for delivering a stereotype plate cast in the casting mechanism into alinement with the finishing mechanism, supports in the finishing mechanism for the plate, and means for effecting a relative rocking movement between the supports and finishing mechanism to hold the plate.

9. In a curved stereotype plate casting and finishing mechanism, the combination of a finishing mechanism, a back positioned at one side of the finishing mechanism, a frame pivotally movable as a whole from said back into a position at the side of the finishing mechanism, and means for delivering a stereotype plate from said frame into alinement with the finishing mechanism with the convex face of the plate up.

10. In a curved stereotype plate making machine, the combination of a frame, a casting mold supported at one side of the frame, a shaving knife extending lengthwise of the frame, a shaving arch above and alined with the shaving knife shaft, guideways alined with the shaving knife shaft, means for revolving the shaving mechanism, means for removing a curved plate from the casting mold to a position at the side thereof and alining it with the guideways so it can be moved into the arch, and means for causing the shaving mechanism to make one revolution and stop.

11. The combination with an upright back, of means for receiving a plate located substantially on a level with the top of said back in horizontal position, and means for moving the cast plates out of the back and for then elevating the plates into alinement with said receiving means.

12. The combination with an upright back, of means independent of all finishing mechanism for receiving a plate located substantially on a level with the top of said back, means for moving the cast plates out of the back, and into alinement with said receiving means, and an independent finishing mechanism in alinement with said receiving means.

18. In a machine for making stereotype printing plates, the combination with a mold for casting the plate, of a frame mounted adjacent thereto, means on said frame for engaging the plate and Separating it from said mold when the frame moves away from the mold, and guideways in position for swinging frame for engaging the plate on 10 said mold and taking it away from said mold with the swinging frame, and guideways for receiving the plate from said frame longitudinallyg In testimony whereof I have hereunto 15 afiixed my signature.

CHARLES E. HorKiNs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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