US1610763A - Stereotyper's casting machine - Google Patents

Description

Dec. 14 1926. 1,610,763

H. FISHER STEREOTYPERS CASTING MACHINE Filed Nov, 23, 1923 4 Sheets-Sheet 1 H. L. FISHER STEREOTYPERS CASTING MACHINE Dec. 14 1926.

4 Sheets-Sheet 2 Filed Nov. 23, 1923 H. L. FISHER STEREOTYPER S CASTING MACHINE Dec.14,1926. j 1,610,763

Filed Nov. '23, 1923 4 Sheets-Sheet 5 Dec. 14 1926. 1,610,763

H.L.HSHER STEREOTYPERS CASTING MACHINE Filed Nov. 23, 1923 4 Sheets-Sheet ,4

Patented Dec. 14, 1926.

UNITED STATES HARVEY L. FISHER, OF CHICAGO. ILLINOIS.

STEREOTYPERS CASTING MACHINE.

Application filed November The provision of a machine so constructed that it will occupy a minimum of space when it is crated for shipmentor when it is not being used, and to this end the invention preferably contemplates a machine including a substantially vertically extending frame against Wl1l(l1 both platens may be placed, one of the platens being swingable to a substantially horizontal position, and a support upon which the swinging platen may scale, taken on the'line 55 of Fig. 2;

rest when in its horizontal position, the support being soconstructed that it maybe folded and occupy a position out of the way when the swinging platen is in its vertical position; I

The provision of means to assist the operator in noving the swinging platen from one position to the other;

The provision of a machine in which both platens are pivoted to the frame and ar ranged to be moved from a. horizontal to a vertical position substantially, or vice verse,-

- in combination withflmeans to assist. the op erator in moving the platens either singly or jointly from one position to the other;

The provision of mmachine in which the distance between theplatens may be readily varied so that castings of different thicknesses may be made; 1 v i The provision of simple, effective and adjustable means for clamping the platens together; and I I The pro vision of simple and effective means whereby heat maybe applied toeither side of the platen not carrying the matrix or to the adjacent sides of both platens whereby either or both ofthe platens m. be heated preliminary to the casting operation or when it is desired to dry or bake a'wet papier nnich flong.

The invention consists in the novel conin moving the 23, 1923. Serial No. 676,561.

hereinafter described and claimed for carrying out the above stated objects and such other objects as will appear from the following description of a certain preferred embodiment illustrated in the accompanying drawings, wherein Fig. 1 is a side ele'vational view of a machine embodying the principles of my invention, with its parts in the position that they occupy when the machine is not in use;

Fig. 2 is a'perspective view of the machine, on an enlarged scale, the folding support for the platen or platens when they are in the horizontal position havin been lowered from the position shown in ig. 1;

Fig. 3 is a vertical sectional view of a portion of the machine, the two platens being in their vertical position;

Fig. 4 is a vertical sectional View. of the machine, one of the platens having been lowered to its horizontal position and showing in dotted lines the other platen also in horizontal position; I I i Fig. 5 is a sectional view, on an enlarged Fi 6 is a plan view of the bottomplaten showing the gauge bars placed thereon;

Fig. 7 is a detail view, on an enlarged scale, showing-the means for varying the distance between the two latens;

Fig. 8 is a sectiona line 8--8 of Fig. 7;

sczge, taken on the line 10-10-of-Fig. 9; ,an

. Fig. ll is a detail View of a portion of the mechanism employed to assist the operator platens fromone pos tion to.

the other. y Like characters of reference designate like parts in the severalviews. e Referring now to the, drawings,.the frame or the machine includes a base portion 15 mounted on suit-able legs 16 and a pair of vertically extending members 17 The platen18 is pivoted on a transversely extending rod 19 carried by the base; 01'- tion' of the frame. Members 20 (see 'igs. 3 and 7) are ivoted at their inner ends on the rod 19 and at their other ends are slidably. connected to the lower endof the platen .cei've such members. "Tongue and groove structions. arrangements and. devices to be connections as indicated-at 23 are provided View taken on y the I Fig. 9 is a detail view showing the-means between the members 20 at their lower edges and plates 24 attached to the platen 21 by pocket or recess 26, while the upper edge of each member 20 is provided with a longitudinally extending half circular, groove 27, the members 20 being internally threaded at the grooves. An externally threaded member 28 is provided at each side of the platen disposed partly in one of the recesses 26 and partly in the adjacent groove 27, its threads engaging the threads of the grooved member 20. Since the member 28 cannot move axially relative to the platen, it will be apparent that, when the screws 25 are loosened and the member 28 is turned by a suitable tool, movement of the member 20 will be effected relative to the platen. By this arrangement the platen 21 may be moved away from or toward the plate 18 so that castings of various thicknesses may be made. \Vhen the members 20 are in thedesired position. relative to the platen 21, the screws 25, of course, are turned tightly.

The means preferably employed for supporting one or. both of the platens in the horizontal position comprises a frame, designated as a whole by the reference character 29, said frame includin side bars 30 pivoted at their inner ends to the base portion 15 of the main frame and connected at their outer ends to a cross member 31. Legs 32 are pivoted at their upper ends to the respective ends of the cross member 31. Brace bars 33 are pivoted at one end to the base portion 15 and at the other end to the respective legs 32. The bottom platen 21 is provided with longitudinally extending ribs 21 and transversely extending ribs 21 to prevent warping of the platen. A hook 34 is fixed to the transverse member 31 of the frame 29, and is adapted to engage a fastening member 35 fixed to the back of the platen 21, as shown in Fig. 2. By raising.

the bottom platen and the frame 29 and bringing the hook 34 into holding engagement with the member. 35, the frame 29 may be folded and held againstthe back side of the bottom platen as shown in Fig. 1.

The clamps for locking the free ends of the platens together are preferably of the conan eccentric bearin ortion 36 and a flan e D portion 36, the member being mounted on [the outer side of the platen 21 by a bolt 37.

A fastening member 38 is journaled on the eccentric bearing portion 36, a washer 39 being placed, on the bolt 37 betweenthe platen and the member 38. A pin 40 disposed partly' in the hub portion 36 and partly in the washer 39 provides for the turning of the washer with the member 36,

It will be apparent that the member 38 is frictionally held between the washer 39 and j the flange portion 36 so that the member 38 normally turns with the member 36. The

rovided with free end of the member 38 is a hook 38 which is adapte to engage a catch 41 turnably attached to the platen 18; The hook 38 is adapted to. bear against either of the surfaces4l or 41 of the catch member. The parts are so arranged that,

when the catch member 41 is in the position shown in Fig. 9 and the hook 38 is in engagement with the surface 41, the platens are spaced for making castings type-high,

namely: :918 inchin thickness. By turning the catch so that the hook 38 will engage the surface 41", the platens will be spaced to make relatively thin castings called skiv ers and which are .166 inch in thickness.

It will be obvious that the platens may be drawn very tightly together by turning the handle of the member 36 in the proper direction. The frictional engagement of the member 38 with the member 36 makes it possible to manipulate the clamping devices bar 42, which is positioned against the edges of the members 20, and longitudinally extending bars 43 and 44. The bars 42, 43 and 44 are placed over the matrix 45 on the platen 21 when the platen is in its horizontal position. Any suitable means may be employed to facilitate positioningthe bars 43 and 44 at right angles to the bar 42. In'the embodiment herein shown, the platen 21 at one side is provided with a plurality of stop members 46 against which the bar 43 is P placed and at the other side it is provided Y with an angle member 47. A pair of links 48 are pivoted at one end to the member 47 and at the other end to the respective extremities of the bar 49 and the outer ends of a pair of links 50, the inner ends of the links 50 being pivoted to a bar 51. By this a1 rangement the bar 51 may be moved away from or toward the bar 43 and, since it is maintained at a rig-ht angle to the bar 42,

the bar 44 when placed against it, will also be at a right angle to the bar 42.

A metal pot 52 is pivotally mounted be tween apair of brackets 53 secured to the upper ends of the respective frame members 17 The metal pot may be heated by any suitable means. for example, by a burner 54 positioned under it and supported by the frame member'17, as shown in Fig. 4.

"When a casting is to be made, the bottom 1E5 ,platen 21 is swung to its horizontal position. The matrix and the gauge bars are arranged on said platen and then the top platen 18 is swung over onto the gauge bars, as indicated in dotted lines in Fig. 4, and the two platens are clamped together. The two platens-are then swung from their horizontal position to. their vertical or casting position, as shown in Fig. 2. lVhcn the metal pot is tilted the molten metal will flow directly therefrom into the casting chamber provided between the two platens.

I preferably provide means to assist the operator in swinging the platens from the vertical to the horizontal position, or vice versa. In the embodiment herein shown the bottom platen 21 is provided with a pair of arms 55, see Figs. 2, 3 and 4. A pair of springs 56 are attached at their outer ends to the cross frame member 31 and at their other ends to the ends of the respective arms by links 57 and 58. The respective links 58 are provided with upstanding lugs 59 adapted to engage stop pins 60 carried by the respective arms 55, thereby preventing movement of the links 58 relative to therespective arms 55 during a portion of the time the platen 21 is moving from one position to the other. A pair of arms 61 are fixed to the sides" of the upper platen 18. Springs 62 (only one appearing in Fig. 4) are attached at their outer ends to the cross frame member 31 and'at their other ends to the ends of the respective arms 61 by links 63 and 64. The respective links 6t have up standing lugs 65 adapted to engage stop pins 66 provided on the respective arms 61, thereby preventing movement of the links 61 relative to the respective arms 61 during a portion of the time the platen 18 is moving from one position to the other.

As the platens are lowered from their vertical position to their horizontal position, the turning effort exerted by them on the pivot rod 19 increases faster than the pulling efi'ort of the springs, and, as the platens are raised from their horizontal position to their vertical position, the turning effort of the platens on the pivot rod 19 decreases faster than the pulling effort of the springs, when an ordinary lever connection is used between the platens and the respective springs. Consequently, if easy operation of the platens is to be obtained, means must be provided to change the effectiveness of the springs during swinging of the platens from one position to theother. I have found that the desired result may be accomplished by providing connections between the springs and the arins attached to the respective platens of such construction that, the effective lengths of the arms are increased and the effective angularity of the arms with respect to the platens are decreased upon the platens reaching an intermediate position when they are swung from the vertical to the horizontal position, and the effective lengths of the arms aredecreased and the-efi'ective angularitly of the arms with respect to the platens are increased uponthe platens reach ing an intermediate position when they are .swung from the horizontal to the vertical shows the relative positions of one of the arms 61 and the links connected thereto when the platen 18 is moved from its vertical to its horizontal position, or vice versa. In the embodiment therein shown, the vertical position of the platen is shown at A; its horizontal position at C; and an intermediate position at B. During swinging of the platen between its A and B positions, the effective length of the arm 61 is indicated as X and the effective angle between the platen and the arm is 134; during such movement of the platen the link 64 serves merely as a connecting means between the spring and the arm 61 and the link, therefore, is free to move angularly relative to said arm. During swinging ot' the platen between its Band C positions, however, the effective length of the arm is greater, being indicated as Z, and the effective angle be tween the platen and the arm is decreased to 89; during such movement of the platen the link 64, by reason of the engagement of its lug 65 with the stop pin 66, becomes an effective part of the arm 61 and it is immovable relative thereto. The short arm is called upon to do its greatest work when the platen is in its approximate B position, and

it will be noted that the arm at that time is in the position indicated at D and that it stands approximately at a right angle to the line of pull from the spring. The longer arm is called upon to do its greatest work when the platen is in its approximate C position, and it will also be noted that the arm at that time is in the position indicated at E and that the effective angle of the arm is approximately 90 to the line of pull from the spring.

I preferably provide a burner 67, see Figs. 3 and 4, under the platen 18. The back of the platen 18 is provided with longitudinallyextending ribs 18 and transversely extending ribs 18 to prevent warping of the platen. The ribs 18 are provided with apertures 68. Sheets of material 69 and 70, preferably of asbestos and sheet steel, respectively, are attached to the outer edges of the ribs 18 and 18", this arrangement providing a flue in the hack platen. The burner 67 is provided with a swingable guard member 71 which directs theflames from the burner upwardly into said flue when the guard member is in the position shown in Fig. 4.' When the guard member is in the position shown in Fig. 8, the flames from the burner are directed upwardly into the space between the two platens. By this arrangement both sides of the platen 18 may be heated preliminarily to making a casting which makes it unnecessary to casta number of slugs as is commonly done to bring the platen to the proper temperature for making a good casting. \Vhen it is desired to bake or dry a wet flong, the flames from the burner 67 may be directed into the space between the two platens until the platens are of the desired temperature. The wet fiong on'the type may then be clamped between the platens, the heat from the platens being transferred to the wet flong and the type which results in the fiong soon being dried. If desired, the flames from the burner, of course, may be directed into the flue in the platen 18 while the flong and the type are clamped between the platens.

A machine embodying the principles of my invention may be folded into very compact form, as shown in Fig. 1, and thus occupy very little space when it is not being used. It will be apparent, by taking off the legs of the machine and inverting the metal pot, that the machine may be boxed or crated with a minimum of material and labor, which is a matter'of considerable importance. The platens may be swung singly or together with very little effort on the part of the operator. The spring-arrangements for aiding the operator in swinging the platens fold with the frame 29 and, as the springs themselves are positioned adjacent the outer end of the frame, they are sufliciently distant from the lower burner as to not be affected by heat therefrom. The means for adjusting the distance between the platens and for clamping them together are very simple in construction and they may be. readily adjusted to make either thin-plate or type-high castings. I,

I do not intend to limit my invention to the details of construction shown and described, except only in so far as certain of the appended claims are specifically so limited, as it will be obvious that modifications may be made without departing from the principles of my invention.

I claim:

1. In a machine of the class described, the combination of a vertically extending frame, a pair of platens connected to said frame and so arranged that they may be placed in a vertical position against said frame, one of said platens being movable to a horizontal position, and foldable means. connected to said frame for supporting said last-named platen when in its horizontal position.

.2. In a machine of the class described, the combination of a vertically extending frame, a pair of platens connected to said frame and so arranged that they may be placedin a vertical position against said frame, one of said platens being movable to a horizontal position, a frame pivoted at one end to said first-named frame and extending under said last-named platen when it is in its horizontal position, and a supporting leg connected to the other end of said second-named frame.

3. In a machine of the class described, the combination of a vertically extending frame, a pair of platens connected to said frame and so arranged that they may be placed in a ver ical position against said frame, one of said platens being movable to a horizontal position, a frame pivoted at one end to said first-named frame and extending under said last-named platen when it is in its horizontal position, a supporting leg pivoted to the other end of said secondnamed frame and a bar pivoted at one end to said first-named frame and at the other end to said leg.

4. In a machine of the class described,-

the combination of a vertically extending frame, a pair of platens, connected to said, frame and so arranged that they may be placed in a vertical position against said frame, one of said platens being movable to a horizontal position, a frame pivoted at one end to said first-named frame and extending under said last-named platen when it is in its horizontal position, means for supporting the other, end of said secondnamed frame, and means for connecting said second-named frame to said last-named platen, for the purpose specified.

5. In a machine of the class described, the combination of a support, a pair of platens mounted thereon, one of said platens being adapted to swing to an upright position and to a position extending laterally from the support, and a collapsible frame for supporting the aforesaid platen 1 in the laterally extending position, said frame being optionally movable to an upright position with said platen. 6. In a machine of the class described, the combination of supporting means, a platen pivoted to said means and adapted either to be raised into a vertical or lowered into a horizontal position substantially, means to assist movement of the platen from either of said positions to the other, and means, which comes into operation upon the platen reaching an intermediate position, to increase, if the platen is being lowered, or to decrease, if the platen is being raised, the.

effectiveness of said second named means 7. In a machine of the class described, the combination of. a supporting structure, a platen pivoted to said structure and adapted either. to be raisedinto a vertical or lowered into a horizontal position substantially, a spring, means connecting said spring to said structure, and means connecting said spring to said platen said spring and means being so arranged that they assist movement of said platen from one position to the other, one of said means being adapted, upon the platen reaching an intermediate position, to increase, if the platen is being lowered, or to decrease, if the platen is being raised, the effectiveness of said spring. 8. In a machine of the class described, the combination of a supporting structure, a platen pivoted to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, an armfixed to said platen, a'spring attached at one end to said structure, and means connecting the other end of said spring to said arm and of such construction that, upon the platen reaching an intermediate position, the ell'ective length of said arm and its angular relation to the platen is changed, for the purpose specified.

9. In a machine of the class described, the combination of a supporting structure, a platen pivoted to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, an arm fixed to said platen, a spring attached at one end to said structure, a link connected at one end vto said springand at the other end to saidiarm, and means on said link and said arm adapted to coact and hold the link immovable relative to the arm during a portion of the time said platen is moving from one position to the other,: for the purpose specified.

, 10. In a machine of the class described, the combination of supporting means, a pair of platens pivoted to said means and adapted to be moved either into a vertical or a horizontal position substantially, and resilient means. to assist movement of the platens either singly .or jointly from either of said positions to the other.

11. In a machine of the class described, thecombination of a supporting structure, a pair of platens pivoted to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, means to assist movement of the platens either singly or jointly from either of said positions to the other, and means, which come into operation upon the respective platens reaching an "intermediate position, to increase, if the platens are being lowered, or to decrease, if the platens are being raised, the effectiveness of said firstnamed means.

12. In a machine of the class described, the combination of a supporting structure, a pair of platens pivoted to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, springs, means connecting said respective springs to said structure, and means connecting said respective springs to said platens, said springs and meansbeing so arranged that they assist movement of said platens either singly or jointly from either of said positions to the other, one of the means connected to each of said springs being adapted, upon the platen reaching an intermediate position, to increase, it" the platen is being lowered, or to decrease, if the platen is being raised, the effectiveness of the spring. i

13. In a machine of the class described, the combination of a supporting structure, a pair of platens pivote' to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, arms fixed to said respective Dlatens, a pair of springs attached at one end to said structure, and means connecting said springs at their other ends to said respective arms and of such construction that, upon the respective platens reaching an intermediate position,-the effective lengths of said arms and their angular relation to the respective platens are changed, for the purpose specified.

14. In a machine of the class described, the combination of a supporting structure, a pair of platens pivoted to said structure and adapted either to be raised into a vertical or lowered into a horizontal position substantially, arms fixed to said respective platens, a pair of springs attached at one end to said structure, links connected at one end to said respective springs and at the other end to said respective arms, and means on said respective links and arms adapted to .co-act and hold the links immovable relative to the respective arms during a portion of the time the respective platens are moving from one position to the other, for the purpose specified.

15. In a machine of the class described, the combination of a platen, a platen member, and means for connecting said platen and laten member including a connecting mem er attached at one end to said platen and slidably connected at the other end to said platen member, and an element jour naled in one of said members and having threaded engagement with the other of'said members and operable to increase and decrease the separation of the platen and platen member.

16. In a machine of the class described, the combination of a platen, a platen member, and means for connecting said platen and platen member including a connecting member attached at one end to said platen and slidably connected at the other end to said platen member, an element journaled in one of said members and havin threaded engagement with the other of said members,

and operable to increase and decrease the separation of the platen and, laten member, and means to secure sai connectin member against movement nae ' surfaces which may be differently space with respect to the other platen upon turning said catch member, said fastening memher being adapted to engage either of said bearing surfaces.

19. In a machine of the class described,

-the combination of a pair of platens, a me1nber turnably mounted on one of said platens and having an eccentric bearing portion, a.

fastening member mounted on said bearing portion, and a catch member pivoted to the other of said platens and having two bearinn surfaces which may be differently spaced with respect to the other platen upon turning said catch member, said fastening memher being adapted to engage either of said bearing surfaces.

20. In a machine of the class described, thecombination of a pair of platens, a member turnably mounted on one of said platens and having an eccentric bearing portion, a fastening member mounted on said bearing ortion, means frictionally holding said astening member to said turnable member, and means carried by the other of said platens and' adapted to be engaged by said fastening member. i v

21. In a machine of the class described, the combination of a pair of platens, a member turnably mounted on one of said platens and having a shoulder and an eccentric bearing portion, a fastening member mounted on said bearing port-ion, means for maintaining said member in frictional engagement with said shoulder, and means carried bythe other of said platens and adapted to be engaged by said fastening member.-

22. In a machine of the class described,

the combination of a frame, a pair of spaced platens substantially vertically positioned on said frame when in casting position, one of said platens having a plurality of ribs on one side, covering material over said ribs whereby a flne'is formed between said material and the adjacent side of the platen, a burner positioned under said last-named platen and so arranged that the flames therefrom may pass either into the space between said platens or into said flue, for the purpose specified.

23. In a machine of the class described the con'ibination of a frame, a pair of spaced platens substantially vertically positioned on said frame when in casting position, one of said platens having a plurality of ribs on one side, covering material over said ribs whereby a flue is formed between said inaterlal and the adjacent side of the platen a burner positioned under said last-named platen, and means to direct the flames of said burner either into the space between said platens or into said flue, for the purpose specified.

24:. In a machine of the class described, the combination of a frame, a pair of spaced platens substantially vertically positioned on said frame when in casting position, one of'said platens having a plurality of ribs on one side, covering material over said ribs whereb a fine is formed between said material ant the adjacent side of the platen, a burner positioned under said last-named platen, and a shield pivoted with respect to said burner and so arranged that, when it is swung to one side, the flames from the burner pass into the space between said platens and, when swung to the other side.

. the flames pass into said flue, for the purpose specified.

25. In a machine of the class described, the combination of supporting means, a platen pivoted to said means for adjustment to and from upright and laterally extending positions, and means adapted during pivotal movement of the platen to exert a tension on the platen at a varying distance from the pivotal axis thereof for controlling the movement of the platen. I

HARVEY L. FISHER.

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