US2297073A - Slug casting machine quadding and centering device - Google Patents

Description

Sept. 29, 1942. H. D. REESE ETAL SLUG CASTINGMACHINE QUADDING AND CENTERING DEVICE Filed Aug. 26, 1940 3 Sheqts-Sheet l I N VE N TORS 556E few/9 90 ATTORNE P 1942- H. D. REESE EI'AL 2,297,073

SLUG CASTING MACHINE QUADDING AND 'CENTERING DEVICE Fi led Aug. 26, 1940 3 'Sheets-Sheet a 1 4 1 1 Li -5 G; gnkmllllflmmmll q III HFELES \Sifiawa Patented Sept. 29, 1942 SLUG CASTING MACHINE QUADDING AND CENTERING DEVICE Harry D. Reese and Charles S. Edwards, Detroit, Mich.

Application August 26, 1940, Serial No. 354,236-

7 Claims.

Our invention relates to a new and useful quadding and centering device adaptable for use on type or slug casting machines,

In the use of such machines the operator frequently finds it necessary to quad a, number of spaces in order to fill out the line. This necessitates the operation of the machine so that the necessary number of matrices will be released and carried over on the machine. In these or similar machines the jaws between which the type is delivered for casting purposes are generally stationary and for this reason it is necessary that the quadding matrices be fed over with the line of type matrices so that the justification may effect the necessary clamping. With the present invention the feeding over of the matrices for quadding purposes may be dispensed with. One of the jaws is movable and when the line of type matrices is fed into position, upon the proper trip being actuated, the movable jaw is carried into clamping relation with the line of type matrices and automatically locked in such clamping position as to securely hold the line of type matrices during the justification and casting operation. In such a process the face of the jaw itself serves as a background or body against which the casting is made, the face of the jaw occupying the position now commonly occupied by the matrices which are fed in for quadding purposes.

It is another object of the present invention to provide a construction so arranged that when the jaw is released for movement into clamping position for a line of type of a predetermined length, the jaw is not locked in position, but is free for reverse movement when the second justification action takes place.

Another object of the invention is the pro? vision of a quadding and centering device which may be easily and quickly attached to or removed from a slug or line casting machine of standard construction.

Another object of the invention is the provision in the quadding and centering device of a pair of jaws which may be mounted so as to, upon being tripped, move inwardly towards each other to securely clamp and center a line of type matrices.

Another object of the invention is the provision in a mechanism of this type of means for locking one of the jaws against movement so that the device then functions merely as a quadding device.

Another object of the invention is the provision of a mechanism for easily and quickly releasing one of the jaws for movement or looking it against movement so that the device is easily and quickly adjusted for quadding purposes or for centering purposes.

Another object of the invention is the provision or means for securely locking both jaws in fixed relation during the justification and casting action,

Other objects will appear hereinafter.

It is recognized that variations and modifications may be made in the structure illustrated without departing from the spirit of the invention and it is intended that such changes and modifications may be embraced within the scope of the claims attached hereto and forming a, part hereof.

Forming a part of the specification are drawingsin which,

Fig, 1 is a top plan view of the invention.

Fig. 2 is a front elevation of the invention.

' Fig. 3 is a rear elevation of the invention.

Fig. 4 is a sectional view taken on line 4-4 of Fig. 1.

Fig. 5 is a sectional'view taken on line 5-5 of Fi 1.

Fig, 6 is a fragmentary sectional view taken on line 66 of Fig. 1,

'Fig. 7 is a. fragmentary sectional view taken on line 'l.-'l of Fig, 1,

Fig. 8 is a fragmentary sectional View taken on line 8-8 of Fig. 7,

Fig. 9is a fragmentary sectional view taken on line 99 of Fig. .5.

Fig. 10 is an enlarged fragmentary sectional View taken on line l0l'0'of Fig. 4.

Fig, 11 is a fragmentary view, slightly enlarged, taken on line ll|l of Fig". 2 with parts removed.

Fig. 12 is an enlarged sectional view taken on line 1-| of Fig. 1.

Fig. 13 is a fragmentary sectional view taken on line 13-43 of Fig. 1.

This invention is adapted for attachment to a swingable bracket of a slug or other line of type casting machine. The 'mechanism is attached to the vise head of the slug casting machine and forms a part thereof. Rods 2il-2I which are suitably attached to the swingable head serve to lock the head to the body of the machine. Mounted on the swingable bracket is a jaw-supporting head- I 9 which serves as a support for the clamping jaws 2 2 and 23 between which the line of type is clamped during the casting operation. Each of these jaws is provided with the inwardly directed portion 24 adapted to rest upon and slide upon the base of the carrying head. Secured to the jaw 22 and projecting outwardly therefrom is a rack bar 26 having on its upper face the rack teeth 21 opposed to and spaced from the teeth 30 on the rack bar 29 which is secured to and projected outwardly from the jaw 23. These rack bars are designed to, at times, mesh with and effect the rotation of the pinion 28.

The pinion 28 is rotatably mounted on a shaft carried by a slidable rack bar 3| having a plunger at one end engaged in the passage 33 formed in the front face of the head or housing IS. A shaft 34 is journalled in the top wall 35 of the head or housing l9 and carries at its lower end a pinion 36 which meshes with the rack bar 3|. Seated in a recess 31' is a pinion 31 which is fixedly mounted on the shaft 34 and which is adapted to mesh with the rack bar 38 which is slidably mounted on the upper surface of the head or housing I3. This rack bar 38 is connected by the links 39 and 46 to a slidable cam blade 4| having a cam 42 formed on its end, the purpose of which will appear hereinafter.

Connected to and extending rearwardly from the jaw 23 is a rod 43 which is notched through a portion of its length and projected through a slot 44 formed in a locking plunger 45 having teeth formed in the upper face of the slot 44.

Formed in the plunger 45 adjacent the upper end thereof is a notch 46 in which engages one end of a presser plate 41 normally pressed down wardly by a spring clip 48 which is mounted on the top of the head I9. Upon a sliding of the plate 4| to the left of Fig. 1 the cam 42 engages beneath the plate 46 and serves to raise it upwardly so as to disengage the teeth on the plunger 45 from the teeth on the notched portion of rod 43. When the plunger 45 is in its downwardy moving position, as shown in Fig. '7 or 8, the rod 43 is locked against longitudinal movement. Slidably projecting inwardly in the passage 48 formed in the block 50 through which the plunger also projects is an additional locking block 5| having teeth on its inner surface 52 adapted to engage the notches on the rod 43. A spring 53 is in engagement with the block 5| and serves to normally retain this block 5| pressed inwardly into locking position so as to prevent longitudinal movement of the rod 43. Formed in the block 5| is a slot 54 in which engages an arm 55 projecting outwardy from the lever 56 which is rockably mounted at 51 on the bracket 58. A spring pressed plunger 66 serves to normally retain the lever 56 locked outwardly into the position shown in Fig. 1 so that the block 5| is normally retained in inoperative or nonelocking position. The lever 56 is in the position to be engaged with the auxiliary justification cam as it moved upwardly on both the first justification movement and the second justification movement so that when the justification action is taking place, the jaw 23 is locked firmly in positive position whether the plunger 45 has been raised upwardly to inoperative position or not.

It is thus seen that when the plunger 45 is in its downwardly moving position the rod 43 cannot move longitudinally and consequently the jaw 23 is retained in stationary position. To change from one position to another it is but necessary to slide the rod 38 to the right or left of Fig. 1 and to this end there is provided a finger grip 6| on the bar 38. When the bar 38 is slid to a position to release the plunger 45 the ratchet teeth for movement to operative or looking position, the pinion 31 will be rotated to move the rack bar to the right of Fig. 4 thus moving the pinion 28 out of engagement with the rack bars 26 and 29. When the plate or bar 38 is moved in the opposite direction so as to raise the plunger 45 in unlocking or inoperative position, the pinion 28 will be moved into mesh with the rack bars 26 and 29. Consequently slidable movement of one of the jaws to the other will effect a relative approach of the jaws 22 and 23.

Connected to the jaw 22 and projecting outwardly from the rear side is a ratchet bar 62 having ratchet teeth on its upper surface. A rockably mounted pawl 63 is supported on the head and provided with notches 64 for engaging the ratchet teeth on the ratchet bar 62 and preventing slidable movement of the jaw 22. An angularly turned, upwardly directed trigger 64' forms a part of the head and is in a position for engaging the moving part of the head 264 as the matrix elevator goes into casing position. When the head 264 strikes the trigger 64 the pawl 64 is tripped to inoperative position. This pawl 63 is normally held by the spring 65 in contacting or operative position and serves to retain the jaw in its original position as shown in Fig. 3. This trigger also serves as a cam which controls pawls that look and unlock jaw 22 through the medium of ratchet teeth, as is described later. Connected to the jaw 22 by suitable linkage is a bell crank or lever 66 which connects to one end of the link 61 which is provided at its opposite end at 68 with a hook engaging a pin in a movable block contained in the stationary part 69 attached to the linotype machine. Connected at one end to the link 6'! is a spring 16. The other end of which is provided with a bolt 1| is connected to a movable cam lever. This spring 16 is normally under tension and has a tendency to rock the end 12 of the bell crank 66 downwardly which would slide the jaw 22 to the left of Fig. 1. In operation when the head goes into the casting position and the trigger 64 is tripped, the jaw 22 will be released for movement to the right of Fig. 3 and this movement will be effected through the operation of the spring 10, the link 6'! and the bell crank 66. This tripping of the pawl 63 is eifected as the line of type moves into position between the jaws 22 and 23 and the jaw 22 is thus brought over by the action described into clamping engagement with the line of type.

The jaw 22 is provided with an extension bar 13 which has ratchet teeth 14 on its upper face. These teeth extend across the upper face of the jaw 22 separating at the end of the portion thereof as shown in Fig. 3. A divided pawl 16 is carried by a reciprocal part 75 of the machine and adapted for locking into engagement with 14 and preventing reverse movement of the jaw 22. Consequently, as the jaw 22 moves into clamping position with the type, it is automatically locked against reverse movement by the pawl 76 so that when the justification takes place and the wedges are forced into position, the ends of the line of type are securely clamped between stationary jaws 22 and 23. And if the line of type is a short line, the face of the jaw 22 serves as the casting surface.

When the jaw 22 moves to the right of Fig. 1 the toggle formed by the link 61 and the portion 12 of the bell crank will be broken downwardly. Extending downwardly from the point of pivot 11 of this toggle is an actuating bar 18 carrying the forked shaft abutment member 19 at it lower end.

When the jaw 22 moves to the right of Fig. 3 into clamping relation with the line of type and th line of type is of such length that the jaw 22 has not been projected across the mouth piece of the machine, the ratchet pawl Iii will not have engaged the ratchet teeth H but will rest upon that portion of the upper face of the jaw 22 which is free from ratchet teeth so that in the justification the jaw 22 may be moved in reverse direction a slight distance to allow for the proper casting of the end of the type, whil the jaw will still be held against the type in sufficiently clamping'relation to hold the type in place during the casting operation. In such a situation the face ofthejaw would not of course form a casting surface against which the casting would be made. After the casting operation is made, the portion of the head 264 which had moveddownwardly to strik the trigger 64 and held at inoperative position, would move upwardly to allow thepawl 63 to be moved into operative position-by the spring 65. At the same time, the pawl '56 would be engaged by the arm 64' carried by the trigger, and knocked upwardly to disengage the ratchet teeth I4 so that the jaw 22 would be permitted to move in response to the movement of the first elevator cam lever 88 to the left of Fig. 3 into th position shown.

Whenit is intended to: use the device as a centering mechanism, the bar 38 would be slid longitudinally so that the plunger 45 would be raised upwardly into inoperative position, thus allowing a longitudinal movement of the rod 43. The pawls would be normally held outwardly out of engagement with the rod 43 and pressed inwardly only upon the rocking of the lever 56 in the two justification actions. During the casting operation the pawls 5i would be held inwardly so that a movement of the jaw 23, during. the casting operation, would be prevented.

Mounted on the stationary standard 83 of the machine is a bracket 84 on which the arm 85 is pivotally mounted. intermediate its ends. This arm 815 is connected by the link 86 and the bracket 81 to a sliding plate 88 which slides on the upper surface of the bed I9. Pivotall mounted on this plate 88 is a lever 89 having a head 99, adapted to extend through an opening formed in the plate 88 and engage the upper surface of the bed. This lever 89 is normally locked so that the head 90, which serves as a friction pad, resists the sliding movement of the plate 88. The lever 89 may be rocked by means of the thumb piece 92 which is pivotally mounted on the upwardly turned grip 93 formed on the end of the plate 88. By pressing 92 and 93 together a free sliding of the plate 88, within the limits of the slot 94, may be efiected. The lower end of the bar 85 is pivotally connected to the link 95. This link 95 extends along one face of a housing 8| which is mounted on the bracket 95 and which is provided with the arcuate slot 82. Engaging in the arcuate slot is a pin 91 extending outwardly from opposite sides of a head 98 which has the angularly turned portion 99 extended beyond the spaced walls of the housing. This portion 99 is provided with an outwardly projecting stud IUI adapted to be engaged by a hook on the end of the link 61. Secured to the head 98 and depending therefrom is a coil spring I02 attached to a bolt I03 which is secured to a movable cam lever so that the spring I02 is normally under tension. When the parts are in the position shown in Fig. 2 the spring I02 is assist: ing the spring I0 so that the rocking of the arm 66' to move the jaw 22 to the right of Fig. 3 is effected by both the springs 10 and I02. This would be the method of operation when th pinion 28 is moved to engage the rack bars 26 and 29 so that as the jaw 22 moves to the right the pinion 28 operating on the bar 29 would move the jaw 23- an equal distanceto the left, Fig. 3. Consequently, the line of type would be centered relatively to the face of the casting head and thus the machine would be used as a centering device instead of quadding.

When the machine is used only for quadding and the jaw 22 alone is movable, the spring III is sufficient for effecting the movement and con sequently it is desirable that the spring I02 be locked out of action. This is accomplished by sliding th plate 88' into locking position.

Th member 95 is pivotally mounted on a pin I94 which projects through a slot IE5 formed in the plate of the housing 8|. The end of the bar 95 connects to a pin I01 which carries a locking tongue I05, this pin I07 being rockably' mounted between the plates 8|" and 8| of the housing. The head 98 carries a locking lip m8. When the elevator bar moves upwardly so as to force the member T8 upwardly, the head 98 will be moved'up'wardly a sufficient distance so that the locking lip I88 will be elevated above th locking tongue Hit. By sliding the plate 88 so as to lock lever and slide and lock the bar or lever 95, the locking tongue I86 will bebrought beneath and in engagement with the locking lip I68 and serve to retain the head 98 in elevated position so that the spring I62 will not be pulling. downwardly on the link 61. Upon doing this, the cam 42 will be withdrawn from beneath the plate 46 and the plunger 5 will be forced downwardly into operative position. In this way we have provided a simple and inexpensive attachment which may be easily and quickly mounted on slug type casting machines to provide a means for quadding so as to eliminate the necessary hand operation and also to provide a means for centering the line of type.

It will be noted that pawl I6 is made up of a number of sections positioned side by side and each section movable relatively to each other. It is also to be observed that the teeth on the face of each of these sections I6 are staggered relatively to the face on the adjacent sections. This nature of engagement is utilized so that there may be an accurate and close centering. For instance, when the jaw 22 moves into approach relatively to the jaw 23, if a tooth on one of the sections is not in registration with a tooth on jaw 22, one of the teeth on one of the other sections will be in registration so that there is thus provided a very fine division between the teeth and, thus a more accurate centering is provided than if a single pawl were used or than if a number of pawls were used with the teeth in registration.

It is to be noted that the member 5I is made up of 6 or more sections, each section being a separately movable pawl 5.I-A and the teeth in these pawls being staggered relatively to each other so that when the jaw 23 moves to approach the jaw 22 a fine division on the engagement of the teeth of the pawls 5I-A with the notches on the rod 43 is efiected. With the multiple pawls cooperating with each other on opposite sides, the centering is reduced to very fine dlmensions.

What we claim as new is:

1. A device of the class described, comprising, a pair of type-clamping jaws movable toward and away from each other; means for securing one of said jaws in stationary position; a rockable mechanism for rocking the other of said jaws toward said stationary jaw; a spring normally tending to rock said rockable member in one direction for moving said movable jaw toward said stationary jaw; releasable securing mechanism for securing said movable jaw against movement; a toggle associated with said rockable mechanism; and a lever for rocking said toggle and adapted for engagement with a rockable lever for rocking said toggle for moving said movable jaw away from said stationary jaw.

2.. In a quadding and centering device of the class described, a pair of jaws movable toward and away from each other and adapted for clamping a line of type therebetween; a rockable member for moving one of said jaws toward the other; a spring normally tending to rock said rockable member; an auxiliary spring for rocking said rockable member; and means for rendering said auxiliary spring operative and inoperative for rocking said rockable member.

3. In a quadding and centering device of the class described, a pair of jaws movable toward and away from each other for clamping a line of type therebetween; a rockable member for moving one of said jaws toward the other; a spring for rocking said rockable member; a latch mechanism for latching said jaw against movement and preventing rocking of said rockable member; a rack-and-pinion mechanism for effecting the movement of the other jaw upon the rocking of said rockable member; and a pair of springs for rocking said rockable member.

4. In a quadding and centering device adapted for use with a type setting machine having a rockable elevator cam lever, a pair of jaws movable toward and away from each other for clamping a line of type therebetween; means for securing one of said jaws in stationary position; a rockable member for moving the other of said jaws toward said stationary jaw; an arm depend ing from said rockable member and engagable with the elevator cam lever upon rocking of the same for rocking said rockable member in the opposite direction for moving said movable jaw away from said stationary jaw.

5. In a quadding and centering device of the class described, a pair of jaws movable toward and away from each other for clamping a line of type therebetween; means for simultaneously moving said jaws toward each other; means for locking said jaws against reverse movement upon movement of the same toward each other a predetermined distance; and means for releasing said locking means; and means for moving said jaws away from each other upon release of said locking means.

6. In a quadding and centering device adapted for use with a type setting machine having a rockable elevator cam lever, a pair of jaws movable toward and away from each other for clamping a line of type therebetween; a rockable member for moving one of said jaws toward the other; means operable upon the actuation of said rockable member, for moving the other of said jaws toward the one for efiecting mutual approach of said jaws; and means associated with said rockable member and depending therefrom, for engaging the elevator cam lever and actuating said rockable member in one direction.

7. In a quadding and centering device adapted for use with a type setting machine having a rockable elevator cam lever, a pair of jaws movable toward and away from each other for clamping a line of type therebetween; a rockable member for moving one of said jaws toward the other; means operable upon the actuation of said rockable member, for moving the other of said jaws toward the one for efiecting mutual approach of said jaws; means associated with said rockable member and depending therefrom, for engaging the elevator cam lever and actuating said rockable member in one direction; and spring means for actuating said rockable member in the opposite direction.

HARRY D. REESE.

CHARLES S. EDWARDS.

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