US789563A - Apparatus for forming saggars. - Google Patents

Description

PATENTED MAY 9, 1905.

' W. POLK.

APPARATUS FOR PORMING SAGGARS.

APPLIOATION FILED JUNE 9. 1904.

3 SHEETS-SHEET 1.

gli /44 PATENTED MAY 9, 1905.

W. POLK.

APPARATUS FOR FORMING SAGGARS.

APPLICATION FILED JUNE 9. 1904.

3 SHEETS-SHEET 2.

FIG. 2

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APPARATUS FOR FORMING SAGGARS.

APPLICATION FILED .TUNE 9, i904.

8 SHBETS-SHIIBT 3.

, /ML f 4 w @QW lille. 789,563.

Patented May 9, 1905.

artnr VILLlAM FOLK, OF FAST LIVERPOOL, OHIO.

APPARATUS FGW FOFHWING SAGGARS.

SPECIFICATION forming part of Letters Patent No. 789,563, dated May 9, 1905.

Application iled lune 9, 1904. Serial No 211,817.

Be it known that l, ILLIAM Penn, a resident of East Liverpool, in the county of Oolumbiana and State el' Ohio, have invented a new and use'i'ul Improvement in Apparatus .tor .Forming Saggars g -and lf do hereby declare the following to be a liull, clear, and exact dcscription thereof.

Myinventionrelates to apparatus lor l'orming saggars and other hollow bowls, and more especially to certain improvements on an apparatus for which l'iiled an appl ication ior Letters Patent ol' the United States on the 24th day of July, i903, Serial No. 166,884.

'l`o enable others skilled in the art to make and use my invention, fl will describe the same with reference to the accompanying drawings, 1n which Figure l. is a iront elevation. Fig. 2 1s a side view on a reducedv scale. Fig. 3 is a sectional View taken on the line 3 3, Fig. 2, looking in the direction ol" the arrow. Fig. 4 is an enlarged lsectional view of the upper and. inner meld. Fig. 5 is a view ol" the mechanism lor lowering the niovable portion of the bottoni el" the .lower mold, the lower mold being shown in section. Fig. (i is a view of the guide-plate l'or the movable central portion ol the plunger.

Like numerals indicate like parts in. cach of the figures.

The numeral 2 designates a suitable base er support upon which is erected. the l'rame' 1S is connected to the cross-headv 14, the lower end ol said crosshead being connected to the yoke 19 ol the plunger 20, said. yoke being connected to said plunger by means oi the bolts 2l., passing through lugs 22 on said yoke.

Guide-rods 23 are mounted on the base 2, said guide-rods acting as guides for the plunger 2() and the mold 24. The yoke 1) has the guides 25, which engage the guide-rods 23, while the mold 24 has the guides 26, which also engage said rods. The plunger 20 and mold 24 are adapted to approach each other, moving in opposite directions, so that the one enters within the other, and to previde for this lmovement the levers 27 are fulcrumedv at 28 to the standards 2Q, the opposite ends ol said levers having the slots 3U, which engage the pins 3l. on the guides 25.

.Links 32 connect the levers 27 through the levers 33, luleruined at 34 upon the brackets 35, secured to the standards 3. The outer ends oilv the levers 33 have the slots 36, which engage pins S7 on the guides 26 ol" the mold 24. By this constructioii as the plungerrod is raised and lowered the plunger and mold 24 approach each other simultaneously until the plunger passes within. the mold, as indicated in Fig. 2.

'lhe plunger 2l), clearly illustrated. in Fig. 4, comprises the outer shell. 3S and the inner shell 39. Secured to the inner shell T) the ialse bottom 40, which. is adapted to move with the inner shell 3S) independently et the outer shell 36%. Tithin the inner shell 3) is the supplemental plunger 4l.. A rod 42 engages a .recess 43 in the supplemental plunger 4l, said .rod having the pin 44 within the enlarged portion 45 ol" the recess 43. A plate 4G, secured to the supplemental Aplunger by the screws 47, prevents the withdrawal of the rod 42 from the supplemental plunger 411. A spring encircles the Arod 42 and is interposed between the plate 46 and plate 49, secured to the upper end elE the inner shell l) of the plunger. This plate, as indicated inv Fig. G, has a slot 5() formed therein, said slot having the enlarged circular portion A key 52 .is driven through the vrod 42, said key being adapted to rest normally u ponv the plate 49, but being adapted when turned te enter the slot 50, all as fully hereinafter set forth. Secured to the upper end of the rod 42 is the arm 53, said arm being secured to said rod 42 by the nuts 54. A spring 55 is connected with the one end of the arm 53, the other end of said spring being secured at 56 tothe guide-lever 27. This arm 53 is arranged at an angle with reference to the yoke 19 of the plunger and at the same angle as the key 52 in the rod 42.

Rods 57 connect the false bottom 4() to the inner shell 39 of the plunger, said rods also acting to hold the plate 49 in position, and extending up are connected to the plate 58, which encircles the plunger-rod 18 and being adapted to move up and down on said plunger-rod. Lugs 59 on the plate 58 havel the pin 60, adapted to engage the slot 61 in the lever 62. This lever 62 is fulcrumed at 63 upon the arm 64, secured to the yoke 19, so that said lever will be carried down by the plunger. The outer end of the lever 62 has the weight 63 secured thereto. Bolted to the guides 17 is the bar 62", with the shoulder 62h, with which the lever 62 is adapted to engage. The lever 62 has sufficient lateral play to be readily released from said shoulder, so as to assume the position indicated in dotted lines, Fig. 1.v The rods 57 are also connected to the cross-arm 66, from which depend the rods 67, which are connected to the stripper 68, which encircles the plunger 20 and which is adapted to strip the saggar therefrom, all as fully hereinafter set forth. The rods 67 have the pins 69, and between said pins and the cross arm 66 are the springs 70.

Depending from the plunger 29 is the tripper-arm 71, with the tripper-finger 72 at the lower end thereof controlled by the spring 7 3. Pivoted at 75 to the mold 24 is the arm 74, said arm having the tripper-fingcr 76 in the path of the tripper-finger 72 of the arm 71. A spring 77 connects the tripper-arin 76 with the arm 74. By the tripper-nger 72 coming Iin contact with the tripper-Hnger 76 the upper end of the arm 74 is thrown over into position to engage the arm 53 and to shift said arm slightly for the purpose fully hereinafter set forth.

The mold 24 has the movable bottom 78, which rests upon the standard 79. Connected to the bottom 78 is the yoke 81, which has the collar 82, adapted to slide up a-nd down on the standard 7 9. On the collar 82 is the projection 82a in the path of the mold 24 on its descent. A lever 83 is connected to the collar 82, said lever being fulerumed at 84 and having the weight 85 at the outer end thereof. This weight acts to normally lift or raise the bottom 78 from the standard 79. In addition to the means for raising the bottom 78 by means of the weight 85 l ein ploy the following auxiliary means: An arm 86 is secured to the yoke 81, said arm having the lip 87, which is adapted to engage the recess 88 in the lower end of the swinging arm 89, which is hung at 90 from the plunger. The lugs 91 and 92, which form the recess 88, are beveled, so that the mold will act to release the arm 89 from the lip 87 of the arm 86 when said mold descends, as fully hereinafter set forth. By thus locking the movable bot tom 78 to the yoke 81 it is apparent that as the plunger ascends the bottom 78 will ascend with it until the mold 24 has descended sufficiently to trip the arm 89 and release said bottom from the yoke 81.

ln the operation of forming saggars with the above apparatus the clay from which the saggars are formed is placed upon the bottom of the mold 24, whereupon the clutch 6 is thrown to drive the pinion 7 and 8, which through the gearing illustrated acts to lower the plunger-rod 18, carrying with it the plunger 20. The operator before the descent of the plunger releases the lever 62 from the shoulder 62h on the bar 62, said lever assuming the position indicated by dotted lines, Fig. 1. Owing to the lever 27 and connecting parts, the mold 24 will be lifted, moving at thesame rate of speed as the plunger 20. As the plunger enters the mold 24 the tripperfinger72 engages the tripper-finger76, and the arm 74 is thrown over into the path of the arm 53. This will tend te force the arm 53 around, carrying with it the rod 42 and the key 52. The key 52 will be brought around so as to coincide with the slot 50, whereupon the spring 4-8 will act to draw said key down through said opening, forcing the supplemental plunger 41 into the position indicated in dotted lines, Fig. 4. This supplemental plunger advancing ahead of the main plunger will act to distribute the body of clay within the mold so that when the main body of the plungerl comes into contact with said clay the clay will be forced up and around the space between the plunger and the mold, so as to form the saggar of a substantially uniform thickness. As the plunger continues to descend the supplemental plunger 41 is forced up as the pressure increases, and the key 52 is forced up through the slot 50. Just as soon as the key passes beyond the upper face of the plate 49 the spring 55 will act to draw the arm 53 back to its normal position, carrying with it the key 52, which thereupon rests upon the upper face of the plate 49 and locks said supplemental plunger 41 in its former position. Then the saggar has been formed in this manner, the plunger is withdrawn and the mold 24 descends. As the plunger ascends and the mold descends the weight on the lever 83 will act to cause the movable bottom 78 to rise, or where the locking-arm 89 is employed said movable bottom will rise with the ascent of IOO IXO

the plunger. The said bottom 78 will continue to rise, the sleeve 82 sliding up the standard 7 9 until the mold 24 strikes the pin S2 in. the sleeve 82, whereupon the further descent ol the mold will act te lower the bottom 78, or where the lockingarm 89 is employed said mold 24 in its descent will strike the beveled lug 92 of the locking-arm S9 and throw said arm out so as to release the movable bottom 7S, when it will descend to its normal position, resting upon the standard 79. Where the weighted lever is employed, however, it will not be necessary to use this locking-arm 89, which may be swung out of the way, so as not to operate except in case of the failure of the weighted lever to do its werk. The movable bottom 7 8 will be carried up until the saggar is 'free from the walls of the mold 24, whereupon said saggar may be readily lifted from said bottom before the descent of said bottom takes place. At the same time that the plunger ascends the lever G2, which has been carried down with the plunger, will engage the shoulder 62h on the stationary bar 62, as clearly indicated in full lines in Fig. l, which acts to hold the stripper 68 and holds the false bottom 40 and supplemental plunger 4]. down within the saggar, so as to strip the saggar `from the rising plunger, as indicated in Fig. l. The operator then releases lever 62, whereupon said lever 62 rises to the position indicated in dotted lines, Fig. l, the false bottom 40 and supplemental plunger 41 being raised to their normal position, leaving the saggar in position to be removed.

By the above construction provision is made for releasing the supplemental plunger automatically, so that it advances ahead of the main plunger and acts to distribute the clay, while at the same time the downward pressure on said supplemental plunger is taken up by the spring, and when the clay has been properly distributed to form the bottom oil? the saggar o'l substantially even thickness the supplemental plunger will be locked in position, so as to be flush with the bottom of the plunger, and will accordingly act in connection with said false bottom to 'free the saggar `from the plunger.

What I claim is- 1. In apparatus lier forming saggars, or like hollow bowls, the combination with a suitable frame, of a mold, a plunger, a supplemental plunger moving simultaneously with said plunger, means `lor lowering said supplemental plunger beyond said plunger, and means `lier retaining said supplemental plunger in its elevated position.

2. In apparatus l'or forming saggars, or like hollow bowls, the combination with a suitable frame, of a mold, a plunger, a sup plemental plunger, means for automatically lowering said supplemental plunger beyond said plunger, and means Vlor retaining said supplemental plunger in its elevated position.

3. In apparatus 'for forming saggars, or like hollow bowls, the combination with a suitable frame, ol a mold, a plunger, a supplemental plunger, means for lowering said. supplemental plunger beyond said plunger, and means for automatically locking said supplemental plunger in its elevated position.

4. In apparatus for forming saggars, or like hollow bowls, the combination with a suitable frame, of a mold, a plunger, a supplemental plunger, a spring adapted to force down said supplemental plunger, locking means for holding said supplemental plunger in place, and means for releasing said locking means.

5. In apparatus 'for forming saggars, and like hollow bowls, the combination with a suitable lrame, of a mold, a plunger, a supplemental plunger, a spring adapted to force down said supplemental plunger, a rod conneeted to said supplemental plunger, a spring bearing down on said supplemental plunger', a locking-plate having an opening through which said rod passes, a projection on said rod adapted to pass through said opening at a certain position of said rod, and. means for turning said rod.

6. In apparatus for forming saggars, and like hollow bowls, the combination with a suitable frame, ol a mold, a plunger, a su p plemental plunger, a spring adapted to force down said supplemental plunger, a rod connected to said supplemental plunger,a spring bearing down on said supplemental plunger, a locking-plate having an elongated opening therein through which said rod passes, a projection on said rod adapted. to enter said opening, and means for turning said rod.

7. In apparatus lor forming saggars, and like hollow bowls, the combination with a suitable frame, eli a mold, a plunger, a supplemental plunger, a spring adapted to force down said supplemental plunger, a rod connected to said supplemental plunger, a spring bearing down on said supplemental plunger, a locking-plate having an elongated opening therein through which said rod passes, a projection on said rod adapted to enter said opening, an arm on said rod, and means for turning said arm.

8. In apparatus Yfor forming sagg'ars, and like hollow bowls, the combination with a suitable frame, ol a mold, a plunger, a supplemental plunger adapted to be lowered below said plunger, locking mechanism for retaining saidv supplemental plunger in its elevated position, and means for releasing said supplemental plunger by the movement oll said in old and plunger.

Q. ln apparatus for forming saggars, and like hollow bowls, the combination with a suitable frame, oi' a mold, a plunger, a sup- IIS pleinental plunger adapted to be lowered below said plunger, locking mechanism for i'etaining said supplemental plunger in its elevated position, tripping mechanism carried by said mold and plunger, and connections between said tripping mechanism and said locking mechanism for releasing saine.

10. ln apparatus for forming saggars, and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, a supplemental plunger, a spring adapted to force down said supplemental plunger, a rod connected to said supplemental plunger, a lockw ing-plate having an elongated opening therein through which said rod passes, a projection on said rod adapted to normally rest on said plate, an arm on said rod, a pivotal arm on said mold, and means 'for throwing said swinging arm into contact with said arm on said rod.

11. ln apparatus 'for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, a supplemental plunger, a spring adapted to 'force down said supplemental plunger, a rod connected to said supplemental plunger, a locking-plate having an elongated opening therein through which said rod passes, a projection on said rod adapted to normally rest on said plate, an arm on said'rod, a tripper-arm on said plunger, a pivotal arm on said mold in the path of said tripper-arin and adapted to be thrown into contact with said arm on said rod.

12. In apparatus for forming saggars, and like hollow bowls, the combination with a suitable lframe, of a mold, a plunger, a supplemental plunger, a spring adapted to force down said supplemental plunger, a rod connected to said supplemental plunger, a locking-plate having an elongated opening therein through which said rod passes, a projection on said rod adapted to normally rest on said plate, an arm on said rod, a tripperarm on said plunger, a spring-actuated Alinger on said tripper-arin, a pivotal arm on said mold, a spring-ringer on said arm in the path of said lirst-named linger, whereby said pivotal arm is thrown into Contact with said arm on said rod.

13. In apparatus for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said mold and plunger moving in opposite directions, a movable bottom plate in said inold i and a weighted lever connected to said bottom plate and adapted to elevate same.

14. ln apparatus for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said mold and plunger moving in opposite directions, a movable bottom plate in said mold, means or raising said bottom plate as the mold descends, and means for lowering said bottom plate by the descent of said mold.

15. ln apparat-us for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said niold and plunger moving in opposite directions, a movable bottom plate in said mold, a weighted lever adapted to elevate said botto'm plate and a projection carried by said movable bottom plate in the path of the descending mold.

16. ln apparatus for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said mold and plunger moving in opposite directions, a movable bottom plate in said mold, a standard upon which said bottom plate rests, a sleeve engaging said standard and connected to said bottom plate, and a weighted lever'adapted to elevate said bottom plate and means for lowering said bottom plate by the descent of said mold` 17. ln apparatus for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said mold and plunger moving in opposite directions, a movable bottom plate in said mold, a swinging latch-bar on said plunger, a projection carried by said bottom plate adapted to be engaged by said latch-bar, and means for releasing said latch-bar by the descent of said mold.

18. ln apparatus 'for forming saggars and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, said mold and plunger moving in opposite directions, a movable bottom plate in said mold, a swinging latch-bar on said plunger, beveled lugs on said latch-bar, a projection carried by said movable bottom plate adapted to be engaged by said lugs, said lugs being in the path of the descending mold.

19. ln apparatus for forming saggars, and

like hollow bowls, the combination with a suitable frame, of a mold, a plunger, stripping mechanism carried by said plunger, and means for holding said stripping mechanism stationary as the plunger ascends.

20. ln apparatus for forming saggars, and like hollow bowls, the combination with a suitable frame, of a mold, a plungerk stripping mechanism, a lever connected to said stripping mechanism and to said plunger, and a stop in the path of said lever.

21. ln apparatus for forming saggars, and like hollow bowls, the combination with a suitable frame, of a mold, a plunger, stripping mechanism, a lever connected to said stripping mechanism and to said plunger, and a shoulder on said frame with which said lever is adapted to engage.

22. ln apparatus ttor forming saggars, and like hollow bowls, the combination with a lOC iof

suitable frame, of a mold, a plunger, a stationary bottom, a movable bottom portion, and means for lowering said movable portion by tlle movement of said mold.

L3. In apparatus for forming saggars, and like hollow bowls, the combination With a suitable Yframe, of a mold, a plunger, a sta tionary bottom in said mold, a movable bottom portion, and a projection on said mov able bottom portion in the path of said mold. Io

In testimonyr whereof I, the said IVILLIAM POLK, have hereunto set my hand.

WILLIAM FOLK. Witnesses 1 Rom. D. ToTTnN, GEORGE H. RANKIN.

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