US1773769A - Automatic clip-operating means for stereotype molds - Google Patents

Description

Aug. 26,1930.- H. A. w. WOOD AUTOMATIC CLIP OPERATING MEANS FOR STEREOTYPE MOLDS Original Filed Jan. f9, 1927 2 Sheets-Sheet 1 E627 Wre m Aug. 26, 1930. H. A. w. WOOD AUTOMATIC CLIP OPERATING MEANS FOP STEREOTYPE MOLDS Original Filed 1927 2 Sheets-Sheet 2 M15627 M%df67002 objects of the inventiohzareto provide such nifty t e cu s lnastereotype plate eastmg machine involves I, Other objects and advantages ofthe in- 9 vention will appearhereinafter. r 1

Patented Aug. 26, 1930 ems; swag PATENT orries HENRY wrsnwoonor NEW YORK, N. e ement v woonnews1=i 1; E' 1- MA- CHINERY CORPORATION, on NEW YORK,Z N} ,Y.," A. ooRroRnTion or .vI eImA AUTOOMAQJVJICVCLIP-OPERATING MnAivs RoR srnnno'r'nrn ,MQLDS ,Application filed Janu'ary 19, 1e27,.seria1 No. 162,117. Renewed Se'ptenibei' 5 .1929.

This invention relates to automatic-mechanismby which the matrix clipsare-locked and released at the proper time, controlled by. the operation of the-machine; specifically by'the movement of the back, The principal an automatic means to save the time required for accomplishingthese operations by-hand, as has heretofore'beenidone, and especially to pensive delays.

Reference isto be drawings in which Fig; 1 is a plan of a casting box" for a stereotypeprintingplate with the riser omitted to show the c osed;"." A a 'Fig. 2 is a side view of the same with the parts in the sameposition; j

had to the accompanying arrow 3'in Fig.1 showing the parts fin the same position; j i '51" Fig. 4 is a plan similar to -Fig'kl showing the position of the parts when'the ba'ck has 7 been drawn rearwardly part way p Fig. 5 is a similar planlshowing the; mold almost completely open; and V Fig. 6 is a similar plan 'showing they-final The clamping of them several distinct motions. In closing themold from "a full open position; th'e clips" are firs t placed, in ahalf cocked position sothat; while are open enough ,s'o that the matrixcanbe inserted. Then the clips are usually {moved into the full cocked position-by hand to grip the matrix at its edges. This operation is ordinarily performed a hand-operated toggle lever, Then the "clips are'released again so thatthe' matrix is "leftfinj proper position to be brought against the back and the clips ,can'be operated'by -the core when at the mold closes whal 'memaarx positively} 1 avoidth'e danger that the operator will fail at some time to unlock the clips before'he starts the casting operation thus causing breakage of the clips or other long orexl -things.

\ 'lIntjhe drawings, I have: shown theorder 65 plateas cast and the inold Fi 3 is a front View as indicatediby the the back isin its extreme open position they Thi "1 tf ig tlie operatio'n closing. i

the mold." These operations have beenpershort period oftimeit is true,but stilhenough so that the time saved by this invention is of value; urther; thefdangerof the operator not .getting the clips unlocked before the casting box is moved up to the core is avoid ed and his'attentioncan be devoted to other I of s eps; in Qpeningthe mold." 'In Figsi l 2 and .3 theinold isshown in .castingposition andall' the pa-rts are in the positions they occupy at that time.

L 1 have shown the cylindricalcore 10 and 'segmentalflback 11 of, the usual'constructi'on I with-aplate Pr cas'ttherein against the matrix M."';As;usual,' 'a projection or camlQ on the I cylinder isat'iithis time in engagement with {an armrl3 on a vertical shaft'll to hold this arm in the position shown and's'wing the are repeated: on "the other side. Thiscom- 1 shaftltoithatposition; .Of course, these parts H presses aspiring-15 on the shaft 14 which is connected'in a well knownwayfto swing th'at' shaftibac'k when the mold an d core separate.

On thatsha-ftds the 'matriXbarQ L and also an arm T16whichis provided with two notches "17andt18 and a cam surface 19." I

the rr i or: m 12mm cylinder 10 holds the arm. 16 out practically inradi'al directionzwhereit is not in contact with theother operatingelements. g 'Pivote'd on the ba'ckisthe toggle lever 20 which by'an adjustable link 21 isnconnected tothe matrix clip 2-2.; At'this time the mat rixj clip 22 is pushedbackfto clamp the edge of thematriX against {the casting bar" 24 which isalso on theshaft 14; -The clips 22 are slidingly carried by the shafts 14 through thebars 24:on which they are mounted. *It" will be'noted thatfin this'c ase, instead of h'av- "ing a manually operated handle, the lever 20' jis' 'providedf with a roller"25 which isnow I lfre buthas been set in; position infwhich it is shown in these three figures by a cam 26 on the stationary frame 27 of the machine. I have shown in Fig. 2 other dotted positions of the roller25 to show that when the roll moves back this cam will later control this toggle lever 20 and perform certain opera tions as willappear hereinafter;

For the operation of the arm 16 and therefore the sl1aftl4and.matrixbar 24 I have describetlthe spring 15. This is not free to open'the bar 24' at the sides after the mold is open, because-theback is provided with :two locking levers 3O pivoted on vertical axes at each side: This'lever has a roll or projec tion 31 adapted to engage the cam surfaces 17, 18'and ie of'the arm 16 and control the operation thereof. Thelever itself is providedwith another roll or projection 32 which is controlled by a fixed cam 33 on the frame 27 projecting over the top of the back. It will be seen that this cam is provided with three straight sections 34, 35 and and w ngular sections 37 and as. I a,

' lV'ith this description of the parts, I will describe-the operation of opening the mold fromthe p'ositioirshown in the first three figures; Thenext position illustrated is'that shownin Fig. 4 in which the back is drawn away from the core or cylinder part way, far enough so that-the springs have rotated the I "shafts'l l as faras the lovers will allow them to go." The roll 31 has nowbeen engaged byfthe cam surface 19 and the rocking of the shaft 14 is thereby limited. This brings the bar 24 out and swings the edge of the ma trix'out from the back and strips it therefrom but the matrix clips 22*still hold itat its edges against the bars 24. There'has been no change in the position of the lever 30 except that it I has moved back along the straightsection 34 with thewback.

9 1N owas theback moves 'furthentothe posiandis beingheld in itsnorm'al position with the matrix .clipsfstill o'la-mping' the matrix. 1;.ThiSVsOt1ldIbe all that would be necessary if-fthe; same matrix were to be used over and over but sometimes the mat-rix has to be removed and replaced. Therefore, I provide .ineansf whereby the matrix is zreleasedif the back isrdrawn one stepfurther back. That is shown in F ig: 6. Heretheroll 32 has gone up the inclinea38into the-straight section 36 which brings :thero1'l3l ;into the ,notch :18. Thisturns the shaft, 14 back to hold the .rnatrix barr2l ;back;in its extreme position. Maaame m h eat n 0 e-t g 20 by the roll 25 being shifted by the incline 26, causes the matrix clips 22 on both sides to be releasedas shown in Fig. 6. The matrix can be removed and replaced.

WW1ether that is done or not, the first operation necessary in closing the mold from this position releases the roll 31 from the notch 18 and leaves it in the notch 17 on account of the reverse motion of the back, and clamps "the matrix. As the mold further closes, the parts go through the position shown in Fig. 4. During thisclosing operation, it will be noted the clips are unlocked by thetoggle lever;20 after the matrix has been locked, so that thecams 12 on the core can performth'elocking operationthemselves.

,lVh'en it is desired to change matrices, the ophalf-cocked position, permitting the. removal of the matrix. lVhen it is desired to insert a new-matrix the several partsperform the same operations in -the reverse manner. If the clips werenot unlockedbefore the casting operation was started, a-serious' accident would happen, such as the breaking of the matrix clips. This would unnecessarily delaythe casting operation. 7

Although I have illustrated and described only a single formof. my; invention I am aware of the factthatmodifications can be made therein'by anyperson skilled'in the art without departingfrom the scope of the invention as expressed in the claims Therefore, I do not wish to be limited to all the detailsof construction herein shown and described butwhat I do claim is .1. In astereotype plate casting mold, the combination with the core, back and matrix clips carriedby the back,. of means for automatically moving the clips into a halfcocked positionwhen the mold is wideopen, means forfautomaticallymoving the clips to 'clamp the .inatrix at its edges as :the mold closes, means" for releasing the :clips, and means whereby theclosing o f 'the mold will operate: the clips at the properv time to grip thematrix. i h v 2.: Inastereotypeplate casting mold, the combination of pair of shafts along the .edgesl of the mold, means for normally turning the ,shafts in one direction, matrix clips carriedfby the shafts,a'lever for operating .thecli'ps. :to grip-the matrix when the shafts are turned in opposition to said shaft turningmeans,.an armifon each shafthaving the cam surfacesfforcontrolling the. motion of the the motions of said lever and thereby the moduring casting, one

bar and the third in position tions of the matrix clips automatically.

3. In a stereotype printing plate casting machine, the combination with a two part mold, of two shafts at the sides thereof, matrix bars on said shafts, means for normally swinging the shafts to a position in which the matrix bars are open, and stationary cams 1n positlon for operat ng the matrix 'bars when the mold is wide open to release them, then clamp them in position while the mold closes, and release them so that the complete closing of the mold will clamp them again.

4. The combination with a stereotype plate mold and its matrix clamping means, of an arm connected with said means for controlling the motion and having a cam surface and two notches therein, of a lever pivoted on the mold andhaving means for engaging said cam surface and notches, in accordance with the position of the lever, to control the matrix bars, and stationary means for moving said lever to difierent positions-governed by'the opening and closing of the mold.

5. In a stereotype plate'casting mold,the

combination witha shaft having a matrix bar for closing the edge of the mold, said shaft havingian arm projecting therefrom, of a lever for engaging said arm and controlling the position of the bar, and a stationary cam having aslot into which a part of the lever projects to. control the swinging of the lever on its axis, said cam having a groove provided with three parallel parts, one for keeping the lever in the position in which it is located forholding it in a position to close the to release thebar, said cam grooves being connected by sections of the groove at an angle thereto. g

. 6. In a stereotype plate casting mold the combination with matrix bars'mounted to.

swing on parallel axes atthe sides of the mold, clips movably'mounted thereon, toggle levers on the bars for operatingthe' clips to 8. In a stereotype plate casting mold, the combination with the core, back and matrix clips carried by the back, of means for automatically moving the clips into a position to release the matrix by the movement of one of the parts of the mold away from the other to wide open position.

9. In a stereotype plate casting mold, the combination withthe core, back and matrix clips carried by the back, of a shaft along the edge of the back, a matrix clip carried by the shaft, and means in stationary position for turning the shaft as the back moves away from the core to open position to move the clip into a position to release the matrix.

10. In a stereotype plate casting mold, the combination with the core, back and matrix clips carried by the back, of means for automatically moving the clips to clamp the matrix at its edges as the mold closes at the proper time to' grip the matrix, and means for releasing the clips-automatically by the action of the mold in moving to wide open position.

11. Ina stereotype plate casting mold, the combination with the back and core, of matrix bars at the sides of the back, a lever pivoted on the back and having means for moving said matrix bars, and stationary means located in position for operating said lever to different positions upon the opening said matrix bars, stationary means located in 1 position for operating said lever to different positions upon the opening and closing of the back, and means on the core for positively lockingthe matrix bars in casting position 105 when the mold is closed. 7

In testimony whereof I have hereunto affixed my signature.

ENRY A. WISE WOOD.

pinch the edges of the matrix, a movable back V on which said parts are'mounted, and stationary cams for operating the matrix clips as the back moves.

7. In a stereotype plate casting mold, the

combination of a pair of shafts along the edges of the mold, springs for normally turn ing theshafts in one direction, matrix clips carried by the shafts, meansforoperating the clips to grip the'matrix when the shafts are turned in opposition to the springs, an arm on each shaft having a cam surface for controlling themotion of-the shaft, said clip oper-' ating means comprising a lever pivoted on the mold and movable with it and a stationary I cam for controllingthe motions of said lever and thereby the motionsof the matrixiclips automatically.

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