US1509078A - Stereotype-plate-casting machine - Google Patents

Description

Sept. 16, 1924. A. A. HENZI STEREOTYPE PLATE CASTING MACHINE Filed Sept: 4-; 182,9 5-'Sheets-Sheet 1 i l o m\\\ E 1 ATTORNEY Sept. 16, 1924.

A. A. HENZjl STEREOTYPE PLATE CASTING MACHINE Filed Sept. 4, 19 20 5 Sheets-Sheet 5 ATTORNEY Sept; 16-, 1924.

A. A. HENZI STEREOTYPE PLATE CASTING MACHINE Filed Sept. 4. 1920' 5 Sheets-Sheet 4 a & a

Ill/I4 INVEHTO a a M .A- A. HENZI 5 Sheets-Sheet 5 Sept. 16, 1924.

STEREOTYPE PLATE CASTING MACHINE Filed Sept. 4 1920 07 0 mi, I,

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' a a W f kum afl/ in ATTOQHEY Patented Sept. 16, 1924. p i UNITED STATES ALBERT HENZI, OF CHICAGO, ILLINOIS, ASSIGNOR TO GOSS PRINTING PRESS COMPANY, A CORPORATION OF ILLINOIS.

STEREOTYPE-PLATE-CASTING MACHINE.

Application filed September 4, 1920. Serial No. 408,203. To all whom it may concern: an enlarged scale, on the line -5 of Fig. Be it known that I, ALBERT A. HENZI, 3 and showing the mechanism in the same a citizen of the United States, residing at position as in Fig. 4; Chicago, in the county of Cook and State of Fig. 6 is a fragmentary detail horizontal 5 Illinois, have invented certain new and usesection on an enlarged scale, taken on the 60 ful Improvements in Stereotype-Plate-Castline 66 of Fig. 2 ing Machines, of which the following is a Fig. 7 is a transverse vertical central secspecification. tion through the mechanism, the casting he invention relates to machines for chamber and cast plate therein, in the cast- 10 casting stereotype printing plates, and in its ing position, the drag being vertical; 65 main features the invention relates more Fig. 8' is a horizontal cross section on line particularly to novel mechanism for auto- 8-8 of Fig. 1 showing the same parts and matically separating or stripping the cast in the same position as Fig. 7. plate andthe matrix and disposing or pre- Fig. '9 is a fragmentary detail, greatly ensenting the plate for discharge or delivery, larged, with parts in elevation and other 7 and in cooperation. and combination thereparts in section, of a form -of matrix hold- With the invention relates to mechanism for ing and stripping mechanism, the general moving the casting elements or devices to features of which are shown in their relation and fro between the plate casting and plate to the machine generally in the'preceding discharging position, and f0 automatically figures of the drawings; 7 locking them in their various positions. F ig; 10 is a fragmentary transverse sec- Objects and advantages of the invention tion, on an enlarged scale, and showing Will be set forth in part hereinafter, and in some of the parts in elevation, correspond part will be obvious herefrom, or may be ing to the upper right hand part of Fig.4;

ascertained by those skilled in the art of Fig. 11 is a fragmentary transverse secplate casting by practice with the invention; tion, taken on line 11-11 of Fig. 9, likewise the same being realized and attained through showing certain of the parts in elevation; the instrumentalities and co binations herein Fig. 12 is 'a fragmentary section, showing shown and described. some of the parts in elevation, taken on line 30 The invention consists in the novel parts, 1212 of Fig. 9; and

constructions, arrangements, combinations Fig. 13 is a fragmentary combined horiand improvements herein shown and dezontal section and plan, taken substantially scribed. on line 13-13 of Fig. 9, and showing the The accompanying drawings, referred to mechanism for opening and closing the 3 herein and constituting a part hereof, illusmatrix clamp. trate one embodiment of the invention, and Referring by way of example to the prestogether with the description serve to exent preferred embodiment of the invention,

plain the principles of the invention illustrated by way of example .in the accom- Of the drawings panying drawings, a machine is shown pro- 4 Fig. 1 is a side elevation of the machine vided With a core or cope 1 of convex cyli'nwith the parts in plate casting position; drical or hemi-cylindrical form, against Fig. 2 is a side elevation of the machine which the inner side of the hemi-cylindriwith the parts in plate discharging posical stereotype plate is cast'in the usual mantion; ner, the core being preferably vertically ar- 4 Fig. 3 is a top plan of the machine with ranged; as in the preferred form the drag 1 the parts of the mechanism in the position travels between the plate-casting and plateshownin Fig. 2; H discharging positions, and will be so de- Fig. 4 is a transverse vertical section on scribed in connection with the illustrated an enlarged scale, taken on the line 44. of embodiment. The core 1 is fixed or sup- 50 Fig. 3, and showing the plate or matrix ported upon the base2of the machine frame, backing portion of the concave or dra reand in practice is usually provided with ceded from the casting position, and the cooling means operated by water circulation, matrix stripped from the face of the plate or otherwise, but the cooling mechanism is and the stops removed from the plate edges; omitted from the drawings, as it constitutes 55 Fig. 5 is a longitudinal vertical section on nov direct part of the present invention.

The cooperating concave or drag 3, which holds the matrix and backs it during the casting is movable between the plate-casting and plate-discharging positions. In accordance With certain features of the invention, the plate-discharging position for the drag is substantially horizontal, with the concave side upwardly, although this is immaterial so far as concerns other features of the invention. In accordance with one feature of the invention the dragis positioned to present the plate to a plate removing and trimming machine, which takes it from the drag and trims it. This machine is shown and described in my copending application Ser. No. 407,987 filed September 30, 1920, and Ser. No. 445,862 filed February 17, 1921.

So far as concerns many features of the invention, the plate may be removed from the drag manually or in any other manner. As embodied, the concave or drag .is supported upon two rollers 4 and 5 mounted upon shafts or trunnions 6 and 7, respectively, projecting from the opposite sides of the drag. The rollers 4 and 5, respectively, run on two tracks 8 and 9, preferably horizontally arranged, and formed upon the machine frame at either side thereof. The described arrangement of the mechanism, together with the operating mechanism therefor (which will be later described), is preferably designed to turn the drag 4 to a horizontal position for the discharge of the plate.

The embodied form of means for traveling the drag to and fro between the platecasting and plate-discharging positions, in accordance with certain principles of the invention, is combined with and cooperates with mechanism for drawing the part of the drag directly behind the matrix away from casting position to facilitate the stripping of the matrix from the plate and the removing of the plate from the machine. In the embodied form of drag-traveling means, a shaft 15 is journaled in bearings 16 and 17 formed in the machine frame. The shaft 15 is partly rotated in one direction to move or travel the drag to casting position and is rotated in the opposite direction to move or travel the drag and plate to discharging position, the rollers 4 and 5 rolling to and fro on their respective trackways 8 and 9, and the drag correspondingly swinging to and fro between the vertical plate-casting and the horizontal plate-discharging positions, as shown in the drawings. Shaft 15 may be so operated by any suitable means, manually or power operated,

as may be desired. A hand lever 18 is shown fixed to shaft 15 and may be used for this purpose.

Fixed to shaft 15 are a pair of arms 19 and 20 and loosely journaled in the other end of these arms is a shaft 21. Shaft 21 is plate-casting also loosely journaled in two arms or brackets 22 and 23, which are fixed to the exterior casing or external portion 24 of the concave or drag 3.

The mechanism so far described serves to travel the drag or concave 3 to and fro between the plate-casing and plate-discharging positions, as shown in Figs. 1 and 2. When shaft 15 is oscillated or partly rotated in its bearings on the machine frame the arms 19 and 20 are swung from the position shown in Fig. 2, assuming the drag 3 to be in the plate-discharging position, to the position shown in Fig. 1, rollers 4 and 5 running along trackways 8 and 9, thereby bringing the drag to the plate-casting position. When shaft 15 is oscillated or partly rotated in the opposite direction, the mechanism described brings the drag 3 from the position shown in Fig. 1 to the plate-discharging position shown in Fig. 2. the rollers 4 and 5 running along trackways 8 and 9 in the opposite direction.

Means are provided'f0r holding or looking the drag securely in either position, sai means acting automatically by the mere engagement of the parts thereof with each In the embodied form of said means the horizontal or for locking the drag 3 in hooks 25 and 26,

plate-discharging position, are pivoted at 27 and 28, respectively, at the outer ends of trackways '8 and 9. These hooks present their beveled hook-equipped ends to the rollers 4 and 5 as these run back along trackways 8 and 9, respectively. The rollers engage the hooks 25 and 26, which swing on their pivots,receiving the rollers, and thereby lock the drag in horizontal position.

The embodied form of means for holding or locking the drag in the casting position comprises pins 29 and 30, positioned respectively near the top and bottom of the shell 24 of the drag on one side thereof, and pins 31 and 32, positioned respectively near the top and bottom of the drag'3 on with these pins, there is journaled transversely of the machine, behind the casting core 1, a shaft 33, and fixed thereto at one side of the machine is a hook 34-, and fixed thereto at the opposite side of the machine is a hook 35, which hooks engage, respectively, with the pins 29 and 31 of the drag, as shown in Fig. 1 of the drawing. Also journaled transversely of the machine in bearings and 37, supported or fixed to the back of the core 1, is a shaft 38. Fixed to'shaft 38 are hooks 39 and 40, which are adapted to engage with the pins 30 and 32, as shown in Fig. 1 of the drawing, to hold or lock the drag firmly in casting position as described. Suitable connections are provided for operating the two sets of hooks together, comprising an arm 42 fixed on shaft 33 and an the Other I side thereof. In the mechanism cooperatingarm 43 fixed on shaft 38, arms 42 and 43 bein connected together by a pivoted link 44. ooks 39 and 40 are so shaped and positioned that as the corresponding pins 29, 30, 3'1 and 32 strike them as the drag comes up to casting position, all the hooks are ro tated from the position of Fig. 1 to that of Fig. 2 and the drag is locked in casting position. A hand lever 15 is fixed to shaft 38 to rock the shafts 38 and 33 to release the drag for its return to the plate discharging position.

Means are provided for stripping the matrix and cast plate apart and for leaving the plate resting in the drag, but in position for removal therefrom either manually ,or by suitable mechanism, said means operating by eflectingvrelativemovement between a plate supporting part or portion of the drag and a matrix supporting part or portion thereof. In the present embodiment,

and in accordance with certain features of the invention, the matrix holding part of the drag is made movable relatively to the body of the drag or the parts thereof which serve to support the cast plate, the movement de scribed serving to strip the cast plate and matrix, and leaving the plate lying free in the drag and in position to beremoved therefrom.

Devices are also provided for nicely regulating the relative'movement of said plate supporting and matrix supporting parts, so

that they will all be brought very accurately to position for casting. Such means are preferably screw-threaded, and as embodied, screw gages are mounted on the drag and act as stops for the movable matrix supportin part of the drag.

n connection with the relatively movable parts and mechanisms of the drag just referred to, means are provided for effecting such relative movement of the plate supporting part and matrix supportlng part. In accordance with one feature of the invention, said moving means cooperate with and are preferably mechanically connected to the previously described mechanism for traveling the drag to and fro between plate-casting and plate-discharging positions. As embodied, by means of said connections, the plate and matrix stripping movement is effected during the movement ofthe drag from the plate-castin to the plate-discharging positions. .Furt er, as embodied, said mechanism for effecting the relative stripping movement of the parts of the drag comprises an eccentric mechanism to which movement is imparted by the travel of the drag between the casting. and discharging positions.

Means are provided for regulating or ad 'usting the amount of movement imparted y said movement-imparting mechanism to the movable parts of the drag, so as to bring the parts exactly and firmly to position for casting. As embodied such means comprise a screw-threaded adjustment, which in the present embodiment is incorporated in the actuating means for the eccentric mechanism for moving the matrix-supporting member of the drag structure. Various other features of the invention will be set forth in connection with the detailed description of these mechanisms.

.Referring in detail to the embodied form of means for separating or stripping apart the cast plate 72 and the matrix 46, the back of the drag, corresponding in length and in width or arc to the matrix is movable in the casing or general structure 24 of the drag 3 to and from the relation or position of these parts during casting. As embodied, said movable portion 47 is provided at each side thereof with guiding or hearing members 48 and 49,-v/hich members work in re cessed guideways 50 and 51, formed in the external casing 24 of the drag 3. Connections are provided for imparting limited movement to the part 47 to and from casting position. Stops 53 are provided, mounted upon the drag casing 24 at either side, for limiting and nicely adjusting the position of the backing member 47, to present the matrix exactly at the casting position, in order to secure the exact thickness of plate desired, and to firmly and completely and closely back the matrix. This adjustment cooperates with the adjustment in the moving mechanism to be later described.

eferring now to the present embodied form of the means for moving the matrix supporting and backing member 47 to and fro between the relative positions or relations of the parts of the drag in the platecasting position and in the plate-releasing or discharging position, respectively, said means are connected to, and cooperate with the means already described for traveling the drag 3 to and fro between the platecasting and plate-discharging positions.

As embodied lugs 60 and .61 extend outwardly from the back of the movable backing member 47, and in these lugs is mounted a wrist-pin 62. Rotatably mounted on wrist-pin 62 is a member 63, which is inte gral with, or fixed to, the strap 64 of an eccentric 65, the eccentric being fixed by a key 66 to rotate with the shaft 21.

The embodied form of means for rotating eccentric during the travel of the drag to and fro between casting and plate discharging positions, comprises an arm 77 fixed to the eccentric or integral therewith, and to this arm is pivotally connected a link 78, which link at its opposite end is pivotally mounted on a rod or support 79 carried upon the machine frame. Link 78 is preferably provided with an adjustment, such as a turnbuckle 80, which cooperating with the drag and the mounting and supporting means for the cast plate and the matrix,.

so that the stripping action is effected by the relative movements of the parts of the drag as already described, the movable matrix supporting and backing member 47, which is preferably of the full length and width ofthe matrix 46, as shown in Fig. 5, and the foot stop 70, which closes the bottom of the casting chamber and forms the curved bevel edge of the plate in casting, and also the matrix shield 71, which guards the curved edge of the matrix and directs the poured hot metal past the matrix edge into the casting chamber, are supported upon the fixed portion 24 of the drag 3. In Figs. 5 and 7 the cast plate 72 and the foot stop and matrix shield 71 are broken away to show more clearly the construction and operation of all the parts.

Thus, when the movable matrix supporting member 47 is moved away from casting position taking with it the matrix 46, the cast plate 72 is left supported upon the member 70 at one end, the riser of the plate resting along the opposite end of the drag. The position of the parts at the casting position and just subsequent to the casting of 10 the plate is shown in Figs. 7 and 8, and the position of these parts when at the plate discharging position is shown in Figs. 4 and 5.

Means are provided for manually operating the movable backing member 47 which may be of any convenient form so far as concerns many features of the invention. As embodied, the pivotal connection 81 between the arms 77 and the link 78 includes a yoke 83 formed on the arm 77, the yoke straddling the end of the link 78. A pivot pin 84 has bearings at 85 and 86 in the two arms of the yoke. The pivot pin 84 is insertible into and withdrawable from its bearings, and may have a binding screw 87 to hold it in position. When pivot pin 84 is withdrawn, arms 77 may be operated by hand to move the backing member 47 to and fro from one of its positions to another. For ths purpose one or more hand levers 88 may be fixed to shaft 21, and thus the part 47 'may be moved to and fro irrespective of the travel of the drag to and from casting position.

The invention, as one of its features, comprises means for automatically stripping the matrix from the plate, and as embodied, said means are incorporated with the matrix clamping devices, both of these cooperating with the receding back of the drag,

although it will be understood that they could be used separately therefrom.

Referring in detail to the embodied form, these devices are provided at each side, that is, at each straight edge of the receding back portion of the drag, and a single detailed description will apply to both devices.

Arranged along each of the straight edges of the receding back 47' of the drag is a shaft 90, journaled in lugs 91 and 92, fixed to the back 47 at or adjacent to each end thereof. Fixed to each shaft 90 to swing therewith is a matrix clamping jaw 93, which jaw extends the entire length of the back 47 of the drag. In said mounting of jaw 93 on shaft 90, it is provided with lugs 94 and 95 apertured to receive shaft 90, and pins 96 fix the lugs to the shaft, so that the jaw 93 will turn therewith.

A jaw 97 cooperates with jaws 93 to clamp the straight edge of the matrix therebetween. As embodied, this jaw extends along the jaw 93, and is of substantially the same length. It is angled or L shaped in cross section, and lies upon the jaw 93, with the angled portion extending over the side edge of the jaw 93, and adapted to clamp the edge of the matrix as shown in Figs. 4, 8, 10, 11 and 12. The edge of this angled portion of the jaws 97, respectively, constitute the straight edge of the casting chamber and.

define the corresponding edges of the plate being cast, as will be seen from Figs. 8 and The embodied form of mechanism for moving jaw 97 slidably transversely with respect to jaw 93, from the position of Fig. 11, for receiving the matrix 46, to the position of Fig. 10 for clamping the matrix edge, comprises cam operated manually actuated devices.

In detail (Figs. 11 and 13) jaw 97 has an aperture 100 formed therein, and therewithin is a block or plate 101, fitting the aperture transversely but having longitudinal movement in the aperture. The block or plate 101 is apertured to receive an eccentric 102. Eccentric 102 has fixed thereto on its under side avpin or shaft 103, which is journaled in the clamping jaw 93. A pin or shaft 104 extends outwardly from the eccentric and is provided with a handle 105.

A cover or assembling plate 106 lies over the mechanism just described, and bolts 107 pass therethrough and also through the jaw 97 and are screw-threaded into the flat side of jaw 93.' Slots 108 are formed in jaw 97 to permit the clamping and unclampmg movement. A series of springs 109 are nested within apertures in jaw 93 and they have one end bearing against lugs or an angled edge 110 formed on jaw 97. The springs thereby exert a' yielding pressure upon the jaws 93 and 97 pressing them into clamping grip with the matrix edge, as

shown in Figs. 10 and 12. By turning handle 105, the jaw 97 is slid against the pressure of springs 110 into the unclamping position of Fig. 11, and by turning the handle 105 in the opposite direction the jaws are brought into clamping grip upon the matrix edges, as shown in Figs. 10 and 12.

The invention in one of its features provides automatically operating means for stripping the matrix from the cast plate.

s embodied, said means are included in part in the hereinbefore described mechanisni. Cooperating therewith is a spring 112 coiled about the shaft 90, and having one end thereof fixed in lug 92 and the other end fixed in a collar 113, which collar is fixed to shaft 90. The springs 112 impel the respective shafts 90 to rotate to bring the corresponding pair of matrix clamps 93, 97 to the matrix stripping position shown in Figs.4 and 12. A stop 115, fixed to rotate with the shaft 90 engages a stop 116 on the back 47, to limit said angular'or rotative movement of shaft 90. k

The embodied form of means for automatically bringing the matriz? sheet 46 to casting position comprises stops 117 (Fig. 10) supported at each side of'the core 1.

s the drag comes to casting position, the stops 117 will move them from the position of Figsf and 12 to the position of Figs. 8 and 10.

e matrix 46 and the straight edges on jaws 97 are then in proper'position in the czllsting chamber ready for the casting of the p ate.

In the automatic matrix stripping operation, when the drag is swung backwardly, the matrix clamping jaws move away from the stops 117 and springs 112, acting on shafts 90, swing the matrix clamping jaws to the position of Figs. 4 hnd 10 thereby stripping the matrix from the plate. When thereceding back is employed, its action will be as already described.

Means are provided for bringingthe. matrix clamping jaws to position for changing the matrix sheets between casts and for fitting the new matrix to the drag and into the aws, in proper position or relation thereto for casting. As embodied, each shaft 90 is provided with a handle 120 having its hub 119 mounted loosely on the shaft. Mounted on shaft 90 and abutting on the hub 119 is a collar 121 held in fixed angular position on the shaft by a pin 122 passmg therethrough and into lug 91, in which lug the shaft is journaled. In an extension 129 of handle 120, over hanging collar 121, is a detent 123, pressed by a spring 124 into engagement with the fixed collar, which is provided with depressions or- apertures 124 and 124" for holding the handle 120 in either pos1t1on to which 11; may be moved.

will engage with the jaws 97 and I scribed herein,

Fixed on shaft 90 is a collar 125 which is fixed to the shaft by a pin 126. The collar 125 has in its side an aperture 127, into which aperture projects a lug 128, which is fixed on the hub 119 of handle 120, and thus the shaft 90 is free to rock indepen dently of the'handle 12 during the automatic operation of the matrix'stripping means.

When it is desired to change the matrix, and the drag is in the open position, and lever 120 is in its right hand position as shown in Fig. 12, by rocking lever 120 to the left to the position of Fig. 11, lug 128 will engage with the end of aperture 12", shaft 90 will be rocked, and the matrix clamps are thereby brought to the position of Fig. 11. The handles 105 may be moved to unclamp the matrix edges as shown also in Fig. 11.

As handle 120 is rocked to the left, detent 123 engages with the aperture or depression 124*, and will hold the clamps in the position of Fig. 11. After the new matrix is placed in position, the handle 105 is moved to clamp the matrix edges within the clamping jaws 93 and 97. The back 47 can be moved up manually by the handle 88. if desired, in fitting the matrix.

After the new matrix is positioned, handle 120 may then be moved to the right matrix clamping jaws and associated and cooperating parts will then operate automatically during the casting operation repeated as long as desired, as already 'described.

The invention in its broader aspects is not limited to the details of construction, arrangement and position shown and debut departures may be made therefrom within the scope of the accompanying claims without departing from the principles of the invention and without sacrificing its chief advantages.

What I claim is:

' 1. A stereotype plate casting machine mcluding in combination a core, a drag carrying the plate from plate casting position to plate discharging position, a matrix in the drag, and means including an eccentric mechanism for moving the matrix and plate apart during said traveling of the drag.

2. A stereotype plate casting machine 1ncluding in combination a core, a drag carrying the plate sition to tri'x in the drag, and means operated by the travel of the drag including an eccentric mechanism for moving the matrix and plate apart during said travel of the drag.

3. A stereotype plate castmg machlne 1ncluding in combination a core, a'drag and from betweenplate casting poplate discharging position, a madrag having means for traveling it to and fro between plate casting position and plate discharging position, a matrix in the drag, and means connected and operating with the drag traveling means including an eccentric mechanism for moving the matrix and plate apart during said travel of the drag and while the plate is in the drag.

4. A stereotype plate casting machine including in combination a core, a drag traveling to and fro between plate casting position and p-latedischarging position, the a plate supporting part and a matrix supporting part which are relatively movable, and means including an eccentric mechanism for relatively moving said parts to separate the plate and matrix during said travel of the drag. E

5. A stereotype plate casting machine including in combination a core; a drag traveling to and fro between plate casting position and plate discharging position, the drag having a plate supporting part and a matrix supporting part which are relatively movable, and means operated by the travel of the drag including an eccentric mechanism for relatively moving saidparts to separate the plate' and matrix during said travel of the drag.

6. A stereotype plate casting machine ineluding in combination a core, a drag carrying the plate'from plate casting position to plate discharging position, a matrix in the drag, and means including an eccentric mechanism for moving the matrix and plate apart prepatory to the discharge. of the plate at the discharge position.

7. A stereotype plate casting machine including in combination a core, a drag having a plate supporting part and a matrix supporting part which are relatively movable, means for traveling the drag to and fro between plate casting position and plate discharging position, and means including an eccentric mechanism for effecting relative movement between said parts of. the drag, said eccentric mechanism in the means for effecting said relative movement being operated by said'means for traveling the drag.

8. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable to strip the matrix from the plate while the plate rests in the drag and means for adjusting the relative position of the two parts for casting.

9. A stereotype plate casting machine in-' cluding in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable. to strip the matrix from the plate while the plate rests in-the drag and screw-threaded means for adjusting ,and screw threaded means the relative position of the two parts for casting.

10. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable to strip the matrix from the plate while the plate rests in the drag, means for effecting said relative movement, for adjusting said moving means to position the parts for casting.

11. Astereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable to strip the matrix from the plate while the plate rests in the drag, and means including an eccentric mechanism for effecting said relative movement.

12. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable to strip the matrix from the plate while the plate rests in the drag, and means including an eccentric mechanism for effecting said relative movement, and means for adjusting said moving means to position the parts for casting.

13. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part relatively movable to strip the matrix from p the plate while the plate rests in the drag, and means including 'an eccentric mechanism for effecting said relative movement, and screw-threaded means for adjusting said moving means to position the parts for casting.

14. Astereotype plate casting machine including in combinationplate casting means comprising a drag having a plate supporting part and a matrix supporting part movable relatively to the body of the drag including the plate. supporting means, to strip the matrix and plate, and means including an eccentric mechanism for so moving the matrix supporting part.

15. A stereotype p ate casting mar tiiine including in combination plate castin means comprising a drag having a plate s pporting part and a matrix supporting part movable relatively to the body of the drag including the plate supporting means to strip the matrix and plate, and means for adjustably positioning said matrix supporting part for casting:

16; A stereotype plat e casting machine in eluding in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part movable relatively to the body of the drag including the plate supporting means to strip including in combinationa drag the matrix and plate, and screw-threaded means for adjustably positioning said matrix supporting part for casting.

17. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part-and a matrix supporting part movable relatively to the body of the drag in cluding the plate supporting means to strip the matrix and plate, and means for so moving the matrix supporting part, and means for regulating said movement to position the matrix supporting part for casting.

18. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part movable relatively to the body of the driag including the plate supporting means to strip the matrix and plate, and means for so moving the matrix supporting part, and screwthreaded means for regulating said move ment to position the matrix supporting part for casting,

19. A stereotype plate casting machine including in combination plate casting means.

comprising a drag having a plate supporting part and a matrix supporting part movable relatively to the body of the drag including the plate supporting means to strip the matrix and plate, and means including an eccentric mechanism for so moving the matrix supporting part, and means cooperating with said eccentric mechanism to position the matrix supporting part for casting.

20. A stereotype plate casting machine including in combination plate casting means comprising a drag having a plate supporting part and a matrix supporting part movable relatively to the body of the drag including the plate supporting means to strip the matrix and plate, and means including an eccentric mechanism for so moving the matrix supporting part, and screw-threaded means cooperating l with said eccentric mechanism to position thematrix supporting part for casting.

21. A stereotype plate casting machine including in com ination a drag having the intermediate'part movable relatively tothe body thereof, and matrix clamps mounted on said intermediate part.

A stereotype plate casting machine having the intermediate part movable relatively to the body thereof, and automatically operating matrix clamps mounted on said intermediate part.

23. A stereo plate casting machine including in com ination a drag having a plate supporting body and a part behind the plate and movable relatively thereto and carrying the matrix.

24. A stereotype plate casting machine including in combination a drag having a plate supporting body, a part behind the plate and movable away therefrom and carrying the matrix.

25. A stereotype plate casting machine in- 7 cluding in combination a drag having a plate supporting body, a part behind the plate and movable away therefrom and carryi'ng the matrix, and means for stripping the straight edges of the matrix away from the plate.

26. A stereotype plate casting machine including in combination a drag having a plate supportingbody, a part behind the plate and movable away therefrom and carrying the matrix, and means for stripping the straight edges of the matrix away from the plate simultaneously with said movement of said movable part of the back.

27. A stereotype plate casting machine including in combination a drag having a plate supporting body, a part behind the plate and movable away therefrom, and spring operating matrix clamps mounted on said movable part of the drag.

28. A stereotype plate casting machine including in combination a drag having a plate supporting body, a part behind the plate and movable away therefrom and carrying the matrix, and means operated by the movement of the drag for so moving said movable part of the back.

29. A stereotype plate casting machine including in combination a drag having a movable back, and matrix clamping jaws operating to strip the matrix from the plate.

30. A stereotype plate casting machine including in combination a drag having a movable back, means operating automatically to move the back away from the matrix, and matrix clamping jaws operating to strip the matrix from the plate.

-31. A stereotype plate casting machine including in combination a drag having a movable back, means operating automatically to move the back away from the matrix, and matrix clamping jaws operating by the removal of the plate to strip the matrix from the plate.

32. A stereotype plate casting-machine includingin combination a drag carrying the plate from casting position to plate removing position and means for stripping the matrix from the plate while carried by the dra Astereotype plate casting machine including in combination a drag carrying the plate from casting position toplate remov ing position and means for stripping the matrix from the plate while carried by the 125 drag and while the drag is traveling to plate delivery position.-

34. A stereotype plate casting machine including in combination a drag having a relatively recessible portion, matrix clamps mounted on said recessible portion, means for moving said recessible portion backwardly and means for simultaneously moving the matrix clamps, both movements acting to strip the matrix from the plate.

35. A stereotype plate casting machine including in combination a: drag having a relatively recessible portion, matrix clamps mounted on said recessible portion, automatically operating means for moving said recessible portion backwardly and means for simultaneously moving the matrix clamps, both movements acting to strip the matrix from the plate.

36. A stereotype plate casting machine including in combination a drag having a relatively recessible portion, matrix clamps mounted on said recessible portion, means for moving said recessible portion backwardly and spring-operating means for si-- multaneously moving the matrix clamps, both movements acting to strip the matrix I v from the plate.

' 37. A stereotype plate casting machine including in combination a drag having a relatively recessible portion, matrix clamps mounted on said recessible portion, means operating automatically simultaneously with the retraction of the drag from casting position for moving said recessible portion backwardly and means for simultaneously moving the matrix clamps, both movements actingto strip the matrix from the plate.

38. A stereotype plate casting machine including in combination a drag having a relatively recessible portion, matrix clamps mounted on said recessible portion, means operating automatically simultaneously with the retraction of the drag from casting position for moving said recessible portion backwardly and spring-operating means for simultaneously moving the matrix clamps, both movements acting to strip the matrix from the plate.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ALBERT A. HENZI. Witnesses: G. C. ABBo'rn H. FAUKBBUN.

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