US2100528A - Attachment for type casting machines - Google Patents

Description

Nov. 30, 1937. J. v. WHITMER ATTACHMENT FOR TYPE CASTING MACHINES Filed March 9 1934 INVENTOR.

ATTORNEYS Patented Nov. 30, 1937 ATTACHMENT FOR TYPE CASTING MACHINES Joe V. Whitiner; Los Angelcs, Calif l Application March 9, 1934; Serial No. 7141785 1 Claim.

- My-invention relates to type casting machines wherein a line oftype is formed by setting up a series of matrices whicharepasse'd in the machine to molding apparatus in which molten type 5 metal is forced into the matrices to cast aslug of corresponding type and in which such slug oftype is ejected from the molding apparatus of the machine by an automatically operated ejector including a number of' slender ejector 1'0 blades which are adapted to enter between the liner or lining of the molding apparatus. In such machines the moldingapparatus is provided with a pluralitypf mold blocks mounted upon a circular mold member so that any one of these mold blocks may be employed to cast the slug of type.- Eachof these mold blocks may be provided' with liners determining the length and width of the slug to be cast therein and when any one of these molds is used for casting a slug of type, the ejectormust be set to select a number of ejector blades corresponding to the length of-theslug determined by the liners in the molding blocks. 7 It is frequently necessary for the operator tochange the length of the slug to be cast, this is accomplished by pulling the mold turning pinion forwardand turning themold disc to bring the proper length mold-into casting position, it is th'en'necessary to reset the ejector blade to correspond to the length of slug to be o .ca'stin-order to avoid" damage to the liner or ejector blades.

.Should-the operator fail to reset the ejector to correspond with the length of slug for which the newly selected mold is lined, it will be ap- 1 parent that on the next molding operation thee-jector blades would either damage the liner of the newly' selected molds 'or the ejector blades" themselves would become damaged.

It is; therefore} an object of'my invention" to provide means which will require the operator to reset theejector blade upon each change or selectionofthe mold to be used.

.Another object of the invention is to provide locking means'which will be automatically operated by the movement of some part of the machine employed to select the newmold, to positively lock the machine against further delivery of lines of matrices untilthe operator has reset the ejector blades to' correspond to the newly selected mold. 1

.Changes in the form, proportions and minor details-of construction-maybe made within the scopeof the'cla'im without'departing from the spirit-of the invention. i Other-objects;advantagesand-features of invention may appear from the" acccmpanying drawings, the sub'joined detailed description and the appended claim. v g I The accompanying drawings illustrate the invention.

Figure 1 is a perspective view of a; portion oil a type casting machine; illustrating mylocking means attached thereto;

Figurez is a" deta'l; perspective View oiimy k -m ats; iliilstm' n 1the rmal position 16 of the mensgmeamdisengaged .from the as sembling elevator mechanism; of the machine;

and

Figure 3 is a perspective .view,siinilar to Fig. I 2, illustrating the manner in which 'my locking 15' means locks the assembling elevator against movement until the ejector'mechanism has been reset.

Figure 4* is' a fi'a mental diagrammatic view showing'thelock lever extension in locked posio tionfwith the assembling'elevator.

Figure 5' is a view analogous toFig'." 4 showing a side elevation.

Figure 6 anenlarged'fragmental detail View of the bracket showing how the spring is fixed thereto I Referring to the drawings, I have illustrated in'Fig-; 1a portion of a' type casting machine], the particular-machine illustrated herein'i being knownasthe Linoltype machine; as atypical example ofa1machineto which my invention, is adapted. This'machineincludes; generally, a k'ey I board which whenfac'tuated will select" maaJftrifgiesf froin'amagazme, not shown; and hich matrices .ora'ssm u elevator ;c. p The assembling elevator fills itself f and'is' manually raisedfor elevatedby nieans of a handleD connect d by a shaft E hqan elevatinglever F to a' rc q which att'alihe s to' thelow'e'r end ofth'e' assinbling ele b vator C. The upward movement of assembling" elevator C delivers the assembled matrices to" the delivery slide H where the assembled matrices are au ernatnany; and w ithout any 'furtherat tenti'on on the part of the operator, carried 'to145'" lar mold block is adjusted to fit gn qesiru thick- 5'5 15 slug out of the mold block.' The 55 part of the machine which a in ness and length of line. The mold disk K is turned to locate the selected block in the righthand position on the disk K and the automatic portions of the machine will hold the disk K in 5 this position until the molding operation is to take place, and then will cause the mold disk K to rotate through 90 to place the mold block in the casting position. After the slug has been cast, the disk is automatically rotated through 10 270 back to the initial position, where the block is aligned with an ejector P. The ejector P moves forwardly and rearwardly of the machine to press a plurality of ejector blades Q through the mold disk K and the selected block to press the cast vided with an adjustable mechanism for selecting the number of ejector blades'which will be moved forwardly by movementof the ejector, such adjusting mechanism including a handle R 20 connected by means of a lever S pivoted at T, the

opposite end U of the lever being connected to a vertically movableupright V attached by means of a rod W to an adjusting slide X so that movement of the handle R, will cause the adjusting 25 slide X to move upwardly or downwardly in the ejector P to permita selected group of ejector blades Q to belnOVCd into and through the selected mold block. 7 7

..When the size of type or length of line is to be 30. changed, the operator grasps a handle Y connected to a pinion Z and draws this pinion forwardly into engagement with the teeth on the exterior'of the mold disk K, turning this mold diskK by hand to bring any one of the other mold blocks M, N or into vertical position, and

thereafter the automatic operation of the machine will cause this newly selected mold block to be used for the molding of the new length or widthof lineof type. This newly selected block 40 then moves through the various positions, ending "with the location offthis newly selected block adjacent the ejector. I selection of the new mold block is made, it is necessary that the ejector P be readjusted to 45 select a different number of ejector blades Q to fit the particular length of this newly selected mold block and the operator makesthis adjustment by'appropriate movement of the handle R. In order to insure that the operator of the 0 machine will readjust the ejector each time he makes a new selection of molding block, I provide locking mechanism which is actuated by the 'movement of the pinion Z in makingsuch new selection, the locking mechanism engaging some will prevent the start of the automatic molding cycle of the machine on a new line untilsu'ch made. This locking mechanism may comprise a horizontal shaft I disposed transversely across 60 the machine immediately below the molding disk K.

'The left-hand end of the shaft I is supported in a bearing 2 formed upon a bracket 3 attached to the frame or stand 4 'of the machine, near 65 the left-hand side'thereof. Near the left-hand end of the shaft I, I secure an upwardly extending lever 5, the extreme upper end of which is bent rearwardly to form a finger 6 engaging the front face of the pinion Z, The lever is rigidly se- 70 cured to the shaft by means of a suitable set screw I so that when the pinion Z is moved outwardly by the operator in making a selection of a new molding block, the pinion lever 5 will be moved outwardly and will cause a partial rotation 75 of the shaft I."

ejector P is pro-1' When such adjustment or adjustment has been.

The opposite or right-hand end of the shaft I is supported upon a bracket 8 secured to the frame or stand 4 of the machine by means of bolts 9, the bracket 8 being provided with a forwardly extending web I0 through which the shaft I extends and in which the shaft I may be rotated. Rigidly secured to the shaft I, near its right-hand end, is a lock lever I I which has a forwardlyand upwardly extending arm I2 thereon, the upper end of which is bent forwardly in the shape of a hook I3 disposed immediately at the. rear of the inner end of the assembling elevator operating lever F. Thus every time the pinion Z is drawn forwardly to make an adjustment, or a new selection of the molding blocks,

the hooked end of the lock lever arm I2 will engage above the assembling elevator operating lever and prevent upward movement of the assembling elevator until the lock lever is released therefrom.

Near the upper end of the bracket 8, I form a vertical slot I4 in the Web ID in which slot operates a latch lever I5, the right-hand end of which is pivoted upon the bracket 8 at- I6. The left-hand end of the latch lever I5 is provided with an adjustable extension I1 formed as an inverted L-shaped member, the vertical leg of which is clamped in a slot I8 in the end of the latch lever I5 by means of a suitable clamping, screw 9. The length of the latch lever I 5 and its extension I1 is such as to dispose the outer end of the extension I1 immediately above and in the path of movement of the operating lever S for the adjustment of the ejector blades Qso that whenever the operating lever S is moved by the operator to make an adjustment of the number of ejector blades Q the movement of the lever S will lift the latch lever I5 to the desired position shown in Fig. 2 of the drawings. 1

The lock lever II is normally in its rearmost position, as shown in Figs. 1 and 2, with the hooked end I3 of the lock lever arm I2 disengaged from the operating lever for the assembling elevator and when the lock lever is in this position, a locking screw 20 threaded through the locklever I I has its head 2| disposed immediately belowthe latch lever I5, holding the latch lever I5 in its elevated position, as shown in Fig. 2.

However, when the pinion Z has been moved forwardly in making a new selection of the molding block, and has moved the locking lever II and its arm I2 forwardly into hooked locking engagement with the assembling elevator operating lever F, the forward movement of the lock lever II will move the head 2I of the locking] screw 20 out from-under the latch lever I5, allowing the. latch lever I5 to descend behind the screw head 2I to the position shown in Fig. 3. The length of the locking screw 20- is selected such that .when'the latch lever I5 falls down. behind the screw head 2I, it will hold the lock lever I I in its forward or locked position until the latch lever is again raised upon a subsequent adjustment of the ejector bladesQ. V n

It will thus be observed that whenever the pinion Z is moved by the operator to select a new or different molding block, the'forward movement of the pinion in making this adjust ment will'cause the assembling elevator C to be locked against upward movement and to remain so locked until a subsequent operation of the ejector adjusting mechanism has been' accom-v lished. When the operator moves the adjusting lever S to make the ejector adjustment, he will first swing the ejectorlever handle downwardly to its fullest extent, thus causing the leverS to lift the latch lever l5 back to its normal position, as shown in Fig. 2, and then he will proceed to make the adjustment required for the new mold, and a spring 22, interposed between a forwardly projecting shelf 23 on the web l and the lower end of the lock lever l I, will cause the lock lever ll to'be moved upwardly and rearwardly to the position shown in Fig. 2, thus disengaging the hooked end l3 of the lock lever arm l2 from its locking relation with the assembling elevator. I prefer to provide a spring 24 to urge the latch lever l downwardly, such spring being interposed between the upper surface of the latch lever l5 and a cotter pin 25 extending through the v upper end of the bearing web l0 and across the slot 14.

I also prefer to provide an adjusting screw 26 passing through the lock lever H to engage the outer surface of the bearing weblll to limit, the rearward movement of the lock lever II and its arm l2.

As will be understood by those skilled in theart, the locking down of the assembling elevator will prevent the passing of a new stick of matrices into the delivery slide of the machine, and it will also be understood by those skilled in the art that a stick of matrices delivered to the delivery slide starts the automatic molding cycle of operations of the machine. Therefore if the delivery of this new stick of matrices is prevented, there can be no automatic operation of the molding portions of the machine and hence there can be no operation of the ejector P. However, by the employment of the locking device hereinbefore described, it will be apparent that the operator of the machine cannot make an adjustment or new selection of a molding block and then inadvertently fail toproperly adjust the ejector blades, since until some adjustment of the ejector blades is made, the assembling elevator is locked against movement and against the possibility of delivery of a new stick of matrices to the molding portions of the machine. a

Should the operator forget, or fail to make the adjustment of the ejector blades, he will be reminded of his failure as soon as he sets up the next stick of matrices and attempts to operate the assembling elevator handle D.

It will therefore be observed that I have provided locking means which will prevent the operator from delivering a new stick of matrices to the automatic molding portions of the machine until after he has made the necessary adjustment of the ejector blades to fit the new molding block which he has selected and that as soon as he has made the adjustment, such locking means will be released and permit the machine togo through its normal cycle of operations without interruption. It will also be observed that the construcstruction of my locking means is extremely simple and does not interfere in any way with the usual construction and operation of the machine.

While I have shown and described the preferred embodiment of my invention, it is to be understood that I do not wish to be limited to any of the details of construction, except as defined in the appended claim.

I claim: In combination with a type casting machine having an assembling elevator in which a plu-' rality of matrices are assembled and having molding apparatus for molding lines of type when said matrices are started into operation by delivery of said matrices from said assembling elevator and having a pinion manually operable by the operator for moving said mold. disk'to select different ones of said molding blocks and having ejector means for ejecting molded lines of type from said molding blocks, an ejector adjusting lever for adjusting saidejector to cor-' respond to the selected molding blocks, an attachment for said machine including a shaft extending across said machine below said pinion and'said assembling elevator, a locking lever secured to said shaft and disposed at the rear of said assembling elevator for movement between a position engaging said assembling elevator and to a position disengaging said assembling elevator, a pinion lever secured to said shaft and extending upwardly into engagement with said pinion, whereby movement of said pinion to make a selection of 'molding blocks will. rotate said shaft and move said locking lever into engagement with said assembling elevator, spring means normally urging said locking means out of engagement with said assembling elevator, latch means for holding said locking means into engaged position when so moved, and means actuated by movement of said ejector adjusting lever for releasing said latch means.

JQE V. WHITMER.

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