US2014808A - Device for casting type bars - Google Patents

Description

Sem W W35. E. L. KOKANOUR Zmw@ DEVICE FOR CASTING TYPE BARS Filed June 24, 1953 5 SheetS-Sheefl l A TORNEY i Sept, W, W35. lE. 1 KOKANOUR DEVICE FOR CASTING TYPE lBARS Filed Jim@ 24,

1953 5 Sheets-Sheet 5 INVENTOR .Kokanour Patented Sept. 17, 1935 UNITED Y.STATES PATENT OFFICE i rThis invention relates to a device for casting type bars. 1 l

An object'of the invention is the provision of a device for forming linotype or other type which '5 are cast upon the mat faces of relatively thin matrix slugs clamped in a stick of approximately the same thickness as the slugs, the stick being supported upon the bottom wall of a casting box which is heated to a predetermined temperature so that the melted type metal Will readily iili up all the interstices and depressions in the nia-t faces of the matrices.

Another object of the invention is the provision of a type casting .box which is swingably mounted for placing the molten metal receiving opening in the -box in alignment with a spout of a melting pot, the spout being in communication with a tube formed of a metal which will readily transmit heat and which has an enlarged opening in the lower end to receive the molten .metal from the pot, a plunger in the pot having a Vertical groove embracing the tube.

A further object of the invention is the-provision of a type casting box having .a heated base member for :supporting a stick supplied with matrix slugs, a .cover having side Walls and forming a housing for the stick, a movable partition in the housing forming with the end Wall and a side wal-l a casting chamber, together with means for moving the cover towards or away from the base member.

A still further object of the invention is the .provision of ya type casting box svvingably mounted on trunni-ons .and having a movable cover member, with operating means for moving .the

cover member away from a heated 'base member to permit the insertion .of `a stick .supplied with matrices, the operating means including ka pluraiity of links and levers for rocking cams that cause gui-de bars supporting the cover member to move the 4cover member away from the base member, and spring-pressed rods being reciprocated by the cams to return the cover member to its inward or closed position.

A yet further vobject of the present invention is to provide a matrix stick of such characteristics `as will readily radiate heat .and which is relatively thin to transmit heat, and also the provision of matrices of the same thickness as the stick, with the stick so constructed as to have an opening to receive the matrices in such manner that the matrices rest directly against the heated surface oi the type casting chamber.

This invention will be best understood from a consideration of the following detailed descriptionyin View of the accompanying drawings forming apart of .the specification; nevertheless, it is to be understood that the invention is not conned to the disclosurebeing susceptible of such changes and modifications which define no mate- 5 rial .departure from the salient features of the Y invention as expressed in the appended claims.

On the drawings:

Figure l is a longitudinal side View of a machine for casting type bars constructed in accordl ance with the'principles of the present invention.

Figure 2 is an enlarged fragmentary vertical section of the casting box.

Figure 3 is an enlarged transverse vertical section taken substantial-ly in the plane of line 3-3 15 of Figure 4, with parts cutaway in Figure 2 shown in this ligure.

Figure 4 'is a fragmentary horizontal section taken substantially in the plane of line 4 4 of Figure 2. 20

Figure 5 is a View in perspective of a block employed in `connection with .one end of a stick.

Figure 6 is a view in perspective of a block employed at the opposite end of the stick.

.Figure 7 is a transverse vertical section of a 25 fragmental portion of a stick With the matrices in position.

Figure -8 isa vertical section taken substantially inthe plane of line 8 8 of Figure 9.

Figure 9 is a horizontal section taken substan- 30 tially in the plane of line 9-9 of Figure 8.

Figure 10 is a transverse vertical section taken along the line 11i-I0 of Figure 3. i

Referring more particularly to the drawings, Iii designates a table supported by legs Il. The portion l2 of the table has an outer fiat surface upon which is placed .a stick 'i3 adapted to carry the matrices, the table being provided for assembling the matrices in the stick and for sliding the stick into a .casting box, as will be presently ex- 40 plained.

The casting box comprises a hase member, generally designated by the numeral lli, having a dat .top 15, a bottom IGA, end walls ll, and side walls :i8 forming a chamber I9. Electric heating .ele- 45 ments 20 are disposed within the chamber, and, below the electric heatmg elements, is insulating material 2| to prevent the loss of heat through the ioottom 1:6. It will be noted that the :bottom 50 is secured to 'the :side and :end Walls by means of bolts 22 so that the heating 4elements may be removed or inspected vwhen desired. The heating elements are connected to conductor wires '23 and with a switch yelement 24 in a control box 25. 55

Wires 26 connect the control box 25 with the usual line current.

A cover member 30 is provided above the base member I4 and is movable toward and away from the top I5 of the base member. The cover member has a solid top and depending side walls 3| which, under certain conditions, cooperate with the top I5 of the base member to form a type casting chamber.

Within the cover member 30, and parallel to the side walls thereof, is a movable partition 33 extending lengthwise of the cover member, and with its upper surface against the inner surface of the top of the cover member. The lower surface of the partition lies in the same plane with the lower surfaces of the side walls 3|. The partition 33 cooperates with one of the side walls 3| to provide a casting chamber, as hereinafter explained.

The base member I4 of the casting box is supported by stub shafts 36 which are mounted in bearings 31 carried by the table l0. The shafts 36 project from the oppositely disposed side walls I8 of the casting box, being secured to the flanges 45a of the U-shaped member 45.

The cover member 30 of the casting box is adapted to be moved toward and away from the base member |4, and for this purpose there are provided guide bars 38 which are secured at 39 to the cover, and the edges of the guide bars are bevelled and received by undercut cleats 40 secured to the base member |4. By this arrangement, the cover member is moved in a direction perpendicularly to the base member I4.

A crank shaft 4I is supported in depending flanges 42 of a U-shaped bracket 43 secured by means of bolts 44 to a second U-shaped member 45 which has its ilanges oppositely positioned to the U-shaped flanges 43 and with the flanges 45a secured to the side walls I8 of the base member I4 of the casting box.

A lever 46 is secured Yto the crank shaft 4| and depends therefrom and carries a bolt 41 on which are pivotally mounted the inner ends of links 48 and 49. These links extend outwardly upon opposite sides of the crank shaft 4I and longitudinally beneath the casting box, and the outer end of the link 43 is pivotally connected at 50 to a l-ever 5I secured to a rock shaft 52. The outer end of the link 49 is pivotally connected at 53 to a lever 54 which is secured to a rock shaft 55. These rock shaftsV 52 and 55 are provided with bearings in the flanges 42 of the inverted U- shaped member 43.

A pair of links 56 and 51 have their inner ends pivotally mounted on the crank shaft 4I and extend in opposite directions from the crank shaft and are twisted in length from vertical planes to horizontal planes, as shown in Figures 1 and 2. Trunnions 60 are secured to the side walls 3| of the cover member 30 and rods 6I having their upper ends mounted on these trunnions extending downwardly through perforations 62 in the links 56 and 51, as the case may be. Springs 63 surround the rods 6| below the outer ends of the link 51 and are retained on the rods by means of nuts 64. It will be observed that there are four of the rods 6I shown in the accompanying drawmgs.

A pair of horizontally disposed rods 65 have their inner ends threaded at 66 into the sliding partition 33 and project outwardly through a side wall 3| of the cover member 30 of the casting box, and have their outer ends secured, as at 61, to a bar 68. A rod 69 is threaded at 1|] into the sliding partition 33 between the rods 65, and has its outer end, as shown at 1|, connected to the central portion of the bar 66. By moving the bar 68 toward or away from the cover member 30, the partition 33 may be adjusted with respect to the adjacent side wall of the cover member 39. 5

An arcuately-shaped member 12 connects the bar 68 on opposite sides of the rod 69 with a grooved collar 13. This collar is provided with a square central opening 14 to receive a similarly constructed sleeve 15 on the shaft 36. It will be 10 noted that the opening in the collar 13 is greater in depth than the sleeve 15 so that the collar may be moved vertically for a purpose which will be presently described. The sleeve 15 is provided with a cylindrical opening adapted to neatly rel5 ceive the rock shaft 36 which carries the base member I4 of the casting box. The collar 13 is provided with an annular groove 15 for a purpose which will be presently explained. The member 12 is secured to the collar 13 by bolts 20 The sleeve 15 is provided with a shoulder 11 which abuts the inner face of the collar 13 and a disc 18 abuts the opposite face of the collar 13 and is secured at 19 to the outer end of the sleeve 25 '15. The squared opening in the collar 13 and the squared cross-sectional shape of the sleeve 15 permit the collar to be moved vertically and prevent the collar from rocking or rotating on the sleeve. 301

A yoke has its free ends provided with pins 8| engaging the groove 16 of the collar 13. This yoke is pivoted at 82 on the table I9 and is provided with a handle 83 whereby the yoke may be manually rocked for shifting the collar 13 along 35 the shaft 36 for reciprocating the rods 65 and G9 and likewise the movable partition 33 which cooperates with a side wall of the cover 39 to form the casting chamber 83 in the casting box.

A type metal melting pot 85 is carried by a 40 bracket 86 secured to the table I0. As shown more particularly in Figure 8, the melting pot is provided with a false bottom 81 forming a heating chamber between the false bottom and the main bottom 88. Electric resistance elements 89 45 are arranged in this chamber and supported by a plurality of insulating sheets 96.

The pot is provided with a circular wall 9| and this Wall is embraced by insulating material 92 which is housed by a sleeve 93. This sleeve rests 50 upon a ring 94 secured at 95 to the wall 9|. A ring 96 is secured at 91 to the wall 9| and engages the upper edge of the sleeve 93 and forms a cover over the insulating material 92.

A discharge pipe |00, which is formed. or' a 55 metal such as brass, which will readily transmit heat, is arranged vertically within the pot and has its lower end cut away, as shown at 19|, to provide an enlarged opening for the casting metal to pass from the pot into the pipe |00. The lower 60 extremity |02 of the pipe |00 engages a curved lug |03 formed on the false bottom 81 for aiding in maintaining the lower end of the pipe in position. A spout |04 is secured to the pipe |90 and is in open communication with the same. A 65 metal ring |05 embraces the inner end of the spout |04 and is in contact with the pipe |00. A second ring |06 embraces the spout and is in contact with the inner face of the wall 9i of the pot. A ring of insulating material |01 is disposed between the rings |65 and |96, and bolts ||l8 pass through the rings, the pipe |60, the wall 9| and the sleeve 93 for securing the pipe |00 and spout |04 to the pot 85.

A hollow plunger ||0 is mounted for rccipro- 75 cation within the potv 85 and is provided with a pin I I I upon which is pivotally mounted a piston rod IIZ. The upper end of this rod is pivotally connected to an operating handle H3 which is pivoted at H4 on an extension |I5 of the bracket et, so that when the handle is rocked, the piston I Ill will be raised and lowered.

Y The piston is provided with a semi-circular groove I I5 which receives the pipe Ilil. Thus it will be seen that the piston H5 substantially lls the space within the pot 85 so that when the piston is lowered the bottom II 'I of the piston will contact with the molten metal in the pot and A force the same upwardly through the opening IUI in the pipe I til and through the spout |04.

Referring more particularly to Figure l, it will be seen that conductor wires I2l are connected with a switch I2I in the control box 25 and these wires are connected with the resistance elements 89 in the pot 85, as shown in Figure 8. Any wellknownV form of means may be employed for controlling the current to the heater in the pot B5, land the heater in the casting box, so that a predetermined temperature may be maintained in both these heating elements at all times.

As shown more particularly in Figures l and 2, cams r|22 are secured to the opposite ends of shafts 52 and 55, which cams lie between the lower ends of the guide bars 38 andthe links 51 and 56.

The stick 'of the present invention is radically different from the usual type of stick, since it is formed of metal which will readily radiate heat and is relatively thin so that it will readily transf mit heat. As shown more particularly in Figures 4 and '7, this stick is formed of a single sheet of metal and has a central longitudinal opening I3I), and is provided with grooves ISI adjacent the edges of the opening which form guideways to receive the lugs |32 of matrices |33. The grooves I3I provide ledges |36 on which rest the lugs I32 of the matrices. It will also be noted that the matrices |33 are formed in a radically different manner from the usual type of matrices, since these matrices are relatively thin and are provided with the lugs |32 at their opposite edges adapted to rest upon the ledges |35. The outer face of every matrix is iiush with the outer face of the stick I3 and the bottom faces of the matrices are ush with the bottom of said stick.

A filler block A is disposed at the inner end of the stick and comprises a post |35 having lugs I3t at its opposite sides to be received by the grooves I3I so as to rest neatly upon the ledges |313 of the stick. The front of the post is provided with a raised portion |31 having its outer face above the outer faces of the matrices |33.

A second ller block B is disposed at the opposite or outer end of the stick and comprises a post |40 having a cut-away portion IM and laterally disposed lugs |42 adaptedy to be received by' the grooves ISI and to rest upon the ledges |35 cf the stick. inwardly of the post |40 isa raised portion Iii! having its outer surface raised above the outer surface of the matrices |33. The cutaway portion IflI provides an entrance way to the casting chamber for the molten type metal.

A bracket |45 is formed on the outer end of the 7. stick I3 and has a shoulder |5525 against which a rices are in position in the stick the set screw may be moved for clamping the matrices/in tlstick between the blocks A and B. A spring |48 secured to the bracket engages the outer face of the nut and cooperates with the shoulder |45ab for holding the nut against turning when the screw |136a4 is rotated. The spring, however, per-V 5 mits the nut and screw to be moved outwardly to compensate for the expansion of the matrices when heated.

It will be noted from Figure 4 that the guide bars 33 are spaced outwardly from the side walls 3| of the cover Se and this is due to the fact that bosses I5i are formed on the side walls and project outwardly therefrom for the purpose of spacing the guide bars 38 from the side walls to permit the stick I3 to be placed in the castingv box between the cover and the top I5 of the heating chamber, as shown in Figure 3.

The operation of the device is as follows: The casting metal is placed within the'melting pot S5 after the piston II has been elevated, and the switch IZI is closed. The metal is then heated and melted. At the same time the switch 24 is closed to pass theV current through the heating elements Ztl of the casting box so that the top I5 of the casting box will likewise be heated.

hi the meantime, the various matrices and ller slugs are assembled in the sticks YI3 after the posts A and B have been placed in position. The screw |46 is then manipulated to move the post B to the proper position so that the various matrices will be clamped in the stick.

The crank shaft @I is then operated in the direction indicated by the arrow in Figure l so that the cams |22 will raise the guide bars 33 Yand likewise the cover member 3! away from the top 35 I5 of the heating chamber of the casting box, the lever t3 having been previously actuated to move the partition 53 outwardly and away from the casting chamber to permit the ready insertion of the stick. After the stick has been placed in position, as shown in Figure 3, the lever 83 is moved to cause the partition 53 to be placed in contact with the side walls of the posts A and B, with a portion of the stick underneath the parti.- tion 33. 'it will be noted that the outer side walls 45 of the posts A and B will engage the inner faces of the adjacent side walls 3l of the cover member 35 so that the stick will be properly centered and the matrices will be properly positioned within the casting chamber of the casting box. When 5o this has been done, the crank 4I is moved in the opposite direction and the cams i2?! will be moved to an inoperative position so that the springs 63 will cause the lower edges of the side walls 3| of the top Sil to contact the adjacent edges of the matrices and stick and clamp the matrices onto the stick and hold them in position against the heated wall I5 while the top of the cover member, the side wall of the cover, the movable partition 53, and the heated wall I5 will form the Go casting chamber.

The casting box is then rocked to substantially a vertical position on its trunnions 36, as shown in dott/ed lines in Figure l, and the cut-out portion IlII oi' the post B will align with the spout |04 so 65 that when the piston or plunger Il@ is depressed and the metal is forced outwardly of the pot and through the spout |94, it will iiow into the casting chamber and lill the chamber to a point desired. The casting box is allowed to stand in a vertical position for a short period, after which it is lowered to a horizontal position and. the crank I is moved in the direction indicated by the arrow in Figure l, and the lever 83 is then actuated to respectively remove the cover mem- V ber 30 away from the stick and the partition 53 away from said stick. When the stick is removed, the type bar will likewise be removed and this type bar may then be prepared for use in the printing machine. The topof the cover member 30 is cut away to provide a notch to expose the cut-away portion MI in the ller block B.

It will be noted that the heating of the casting box heats the thin metal of the stick and the matrices so that the type metal will readily flow and ll all of the interstices in the matrices, thereby quickly forming a type bar.

While I have shown and described an electrical heating means for the pot and casting box,

it will be appreciated that any well-known meth# od of heating may be employed for the purpose.

The inner end of the cover Si) of the casting box is provided with extensions I'Hi which are adapted to rest on the inner edge of the portion i2 of the table I for supporting the casting box in a horizontal position and for aligning the table surface with the surface of the casting chamber.

I claim:-

1. In a type casting machine, a casting box, a heating element for heating said box, a stick in the box formed of relatively thin metal which will be heated readily, and matrices in the stick having approximately the same thickness as the stick.

2. In a type casting machine; a casting box; a clamping cover member included in the box; said box having a heating chamber, the upper wall of which is adapted to support the stick carrying matrices; means for moving the cover member towards the wall for clamping the matrices on the stick and for holding the stick against movement; and means for heating the wall, the stick, and the matrices.

3. In a type casting machine; a casting box; a clamping cover member included in the box; said box having a heating chamber, the upper wall of which is adapted to support the stick carrying matrices; means for moving the cover towards the wall for clamping the matrices on the stick and for holding the stick against movement; means for heating the wail, the stick, and the matrices; and a movable partition in the cover member and co-operating with said ce-ver member'and wall to provide a casting chamber about the stick and matrices.

4. In a type-casting machine, a casting box including a cover member having side walls, said box having a flat surface on which the free edges of the cover member side walls are adapted to rest to provide a space between the cover and the surface, a stick mounted on the surface, a block at one end of the stick, a movable partition in the space adapted to engage one face of the block and form with the block and cover a casting chamber.

5. In a type-casting machine, a casting box including a cover member having side walls, said box having a flat surface on which the free edges of the side walls of the cover member are adapted to rest to provide a space between the top of the cover member and sai-d surface, a stick on said surface, a block at one end of the stick, a movable partition in the space adapted to engage one face of the block and form with the block and cover member a casting chamber, the cover member being movable toward and away from the surface, and means for moving the cover so that the side walls of the cover will clamp matrices on the stick and likewise the stick to the surface.

6. In a type-casting machine, a casting box including a cover having side walls and a flat surface on which the free edges of the side walls are adapted to rest to provide a space between the cover and the surface, a stick mounted on 5 the surface, a block at one end of the stick,

a movable partition in the space adapted to engage one face of the block and form with the block and cover a casting chamber, and a block at the opposite end of the stick engaged by a side wall and the partition to close the outer end of the chamber, the block having a grooved portion to provide an opening for lling the chamber with molten type metal.

'1. In a type-casting machine, a casting box 15 swingably mounted on a support and including a movable cover member having side walls, said box having a ilat surface for supporting a stick equipped with matrices, means for moving the cover member towards and away from the flat surface, said means comprising a crank shaft mounted on the box, a lever secured to the shaft,

a plurality of rock shafts spaced from the crank shaft and provided with cams, guide bars secured to the cover member and resting on the cams, said cams adapted to raise the bars forl raising the cover member, a lever connected to each rock shaft, links connecting the last-mentioned levers with the first-mentioned lever, and spring-pressed means connected with the cover member and tending to move the cover member into Contact with the iiat surface, said cams in one position actuating the spring-pressed means for moving the cover member to closed position.

8. In a type-casting machine, a casting box including a body portion having a flat surface and a cover member having side walls resting on the flat surface to form a space between the surface and the top of the cov-er member, guide bars secured to the cover member, guide means for the bars on the body, cams supporting the guide bars, means for operating the cams to raise the guide bars and likewise the cover member, means actuated by the cams when reversely' 45 operated for moving the cover member into engagement with the surface, a partition carried by the cover, means for moving the partition towards one of the side walls for forming with said one side wall and the flat surface a casting chamber.

9. In a type-casting machine, a casting box including a body portion having a flat surface and a cover member having side walls resting on the fiat surface to form a space between said surface and the cover member, a stick on the surface, posts mounted on the opposite ends of the stick and having the outer side faces engage a side wall of the cover, a movable partition within the cover member and adapted to engage the opposite side faces of the posts to form with the posts and cover member a casting chamber.

10. In a type casting machine, a thin metal stick provided with an elongated slot and having grooves along the edges of said slot, matrices having flanges fitting said grooves for supporting the slugs in the slot of the stick, the surfaces of the slugs being in the same planes with the corresponding surfaces of the stick, remov 70 able blocks at the opposite ends of the stick, a oating nut carried by one end of the stick, a set screw threaded into the nut, a cap on the inner end of the screw and engaging an adjacently disposed block for clamping the slugs on the stick, and a spring for retaining the nut against rotation While permitting expansion of the matrices against the tension of the spring.

l1. In a type casting machine, a casting box including a body portion having a at surface and a cover member having side walls resting on the at surface to form a space between the surface and the cover member, guide bars secured to the cover member, guide means for the bars on the body, cams supporting the guide bars, means for operating the cams to raise the guide bars and likewise the cover member, means depending from the cover, links connected with said means and actuated by the cams for moving the cover member into clamping relation With a stick supported. on the iiat surface, a movable partition within the cover member, means for moving the partition towards one of the side walls for forming with saidside wall and the at surface a casting chamber.

12. In a type casting machine, a melting pot for type metal comprising an insulated container, an outlet pipe having a sheared off lower end providing an enlarged inlet opening for the molten metal, a spout projecting from the upper end of the pipe, a hollow plunger in the container and having a groove in the sidewall thereof to neatly receive the pipe, and means for actuating the plunger.

13. In a type casting machine, a thin metal stick adapted to be clamped between a heated surface and the walls of a casting box for type casting and provided with an elongated slot providing openings through the top and bottom of the stick and having grooves along the edges of said slot, and matrices having flanges tting said grooves for supporting the matrices in the stick, the top and bottom surfaces of the matrices lying in the same planes as the corresponding surfaces of the stick.

14. A stick and matrix combination for type casting adapted to be clamped between a heated surface and the walls of a casting box for type casting, including `a stick comprising an elongated structure of thin metal having a slot extending substantially the length thereof and opening through the top and bottom surfaces of the stick, matrices of thin metal of the same thickness as the stick insertable in the stick slot with the respective top and bottom surfaces of the matrices and stick in the same planes, and said stick and matrices having cooperating shoulders and tongues for supporting the matrices in the stick slot during type casting.

i5. A stick and matrix combination for type casting, including a stick of thin metal having an open bottom and adapted to rest against a heated surface, matrices supported in the opening of said stick with their bottom surfaces also against said heated surface, said stick and matrices being held adjacent the heated surface during the formation of a type bar.

16. A method of casting type bars which consists in assembling matrices against a heated surface of a type box, flowing type metal over said matrices, and actively heating said surface during type casting.

1'7. In a type casting machine, a casting box, a heated surface, said box being movable toward and away from said surface, and a stick sldably insertable between said surface and said box, said stick being formed of relatively thin metal which will be heated readily, matrices of approximately the same thickness as the stick supported in the stick, said matrices and stick having intertting portions for supporting the matrices and the stick, the stick and matrices being retained in position between the box and the surface by engagement of portions of the walls of the box with portions of the matrices and stick for retaining the same in clamping position against the surface.

18. In a type casting machine, a casting box, a surface cooperating with said box to form a casting chamber, means for heating said. surface, a thin metal stick having an elongated slot therein open through the top and bottom surfaces of said stick, matrices of the same thickness as said stick disposed in the stick slot, said stick and matrices having cooperating means for supporting the matrices in the stick, and said stick and matrices adapted to be clamped between said box and said 40 ELMER LYMAN KOKANOUR.

Images