US918712A - Block-molding press. - Google Patents

Description

s I. 0.. TITUS.

-BLOGK MOLDING PRESS. v

4 Arum-Anon IILBD 00'1.7,1908. 918 712. v Patented Apr; 20, 1909..

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Witnesses:

'31. Si www 2 Attorney THE NORRIS'PEZ'ERS cm. WASHINGTON, D. c.

Inventor J. 0. TITUS. BLOCK MOLDING- PRESS. APPLIOATION FILED 0017,1908. 918,71 2. Patented Apr. 20, 1909.

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marred Joan 0. Tires, or MARION, on o,

BLOCK-MOLDING PRESS.

Specification of Letters Patent,

l "Patented A ril 20, 1909,

' Appl ca o filed October 7,190 Serial No. 56,592

To all whom it may concern:

Be it known that 1, JOHN C. Trrns, 'a citizen of the United States, residing at Marion,

Marion county, Ohio, have invented certain new and useful improvements in Block Molding Presses, ofwhich the following is a specification. y

This inventlon,pertaining to presses for molding blocks, as of concrete, will be.

readily understood from the'following de scription taken in connection with the aocompanying drawings in which Figure 1 is a side elevation, part vertical section, of a mold-press exemplifying my present invention: Fig. 2 a vertical transverse section of the press: Fig. 3 a side elevation of the mold and the blook tilter: and Fig. 4 a perspective View of the bloclr tilter.

In the drawings 1, indicates the base of the press: 2, the arch-of the press 3, vertical rods connecting the baseand the arch: i, a lower hydraulic cylinder supported byj'the base: 5, theupwardly projecting ram of this cylinder: 6, a-lowerfollower connected with the upper end of rain 5 and sliding on rods as guides: 7, a mold resting on the base of the press and open at its top and its bottom: 5%, a mold-floor fitted to slide vertically in the mold: 9, an upper follower sliding on rods 3 as guides: 10, a horizontal guideway carried by the upper follower and projecting from a position over the mold to a position outwardly sidewise beyond the mold: 11,'an extens on-piece havlng lts upper end fitted to guideway 10 so as to slide in and out therein and havingits lower end adapted to secured to 13, an upper hydraulic cylinder carried by the arch over the mold: 14, theram of the upper hydraulic cylinder: 15, a pullback cvlinder mounted. on thearoh of the press? 16, the ram of the pullback cylinder: 17,

pullback rods connecting upper follower9 with the pullback ram: 18, a pair of expulsion hydraulic cylinders supported at the base of the press: 19, then: rams pro ecting go down into the mold: 12, the mold roof, the base of the BXliGllSlOll-PIBCQ and adapted to sllde down 1n the ,mold'zi serve as upwardstops for those shoulders:

"22, cross-bars disposed in the space between mold floor 8 and lower follower 6, these cross-bars being engaged by the upper ends of the expulsion ramsz' :23, the sidewallsof the mold: 24, the end walls of the mold, these end walls having feet extending down to and secured to the base 1 of the press: 25, a pair of horizontal .guideways projecting rigidly outward from one side of the mold at its top: 26, a horizontal pivot-pin mounted in and adapted to slide in these guideways to and from the mold: 27, a pair of horizontal armshaving their heels mounted on the pivot-pin, these arms being adaptled to move inwardly over the sidewall of the mold:- 28, arms formed with and projecting upward at right angles to arms 27 :29, bearerbars disposed alongsidearms 28 and adapted for slidng motion relative thereto: 30, cooperating pins and diagonal slots in the bearersbars' and in arms 28, so arranged that as the bearer-bars move endwise relative to thefarms their inner edges will move somewhat inwardly: "31, a handle-bar connectingthe two bearer-bars: and 32, a pallet restingiagainst the two bearer-bars.

"The size of the mold will, of course, be adapted to the dimensions of the block to be produced, either in the fundamental construction of the mold, or in the provision of interior parts to vary its size. In practice, thus far, I have made no provision for vary ing the width ofthe mold, otherwise than in fundamental construction, but I have varied the length of the mold by the employment of shiftable false ends bolted in the mold. The mold floor and the mold roof areto be of dimension suited to the effective size of the mold. a a v The mold floor being in itslowermost position and the'upper follower 9 being in its uppermost posit-ion, extension-piece 11, to-

gether with the mold roof, are to be pulled outwardly so, as'to leave the top of the mold free and open. The mold is then to be filled with the material of which the block is to be formed, after which the extension-piece and mold roof are to be slid inwardly to proper working position over the mold. The working pressure isnow to be applied to upper ram 14L and lower ram 5, the consequence being that the material in the mold is solidly compacted between the mold floor and the mold roof, producing a solid block, and the full depth of the mold and the amount of material charged into the mold and to be suflicient to yield, under the pressure produced by the press, a block greater in height than that ultimately desired. In this formation of the block, the mold floor moves upwardly and the mold roof moves downwardly, each to some indefinite extent, the result, however, being a block of density dependent on the pressure employed and of height in excess of that desired. Pressure is 110w to be relieved from the upper ram and applied to the pullback ram, whereupon all of the upper movable parts of the press rise. The lower ram, being still under pressure, will force the block upwardly in the mold and more or less out of the mold, and the upward movement of the mold floor will cease when the upward movement of the lower follower 6 becomes arrested by the follower coming in contact with the lower edges of the side walls of the mold, or by means of any other stopping arrangement. Extension-piece 11 with the mold-roof, havmg been pulled sidewise out of the way, the top of the block, or the projection of the block out of the top of the mold represents the surplus height of the block, it being understood that the distance from the top of the mold to the stopping point for the mold floor will always represent the desired height of the block. The surplus material of the block is now to be struck off even with the top of the mold leaving the block at exactly the desired height, and thereupon pressure is to be applied to the expulsion rams which promptly shove the block, and the mold floor on which it rests, up entirely out ofthe mold, this upward movement ceasing when the lower face of the mold floor passes a trifle above the level of the upper surface of tilting arms 27, the cessation of the upward motion, as produced by the expulsion rams, being determined by the shoulders of the rams coming in contact with the caps 21, which latter furnish means for nlcely adjusting the upward limit of the vertical motion of the expulsion rams. The tilting structure carried by pivot-pin 26 is now to be moved inwardly till arms 27 take position in under the mold floor, whereupon a slight tilting of the structure causes the mold floor and block to be picked up by it and permit them to be withdrawn sidewise out from the press.

In pushing the tilting structure inwardly the motion should not stop till pallet 32 lies fairly up against the side of the block. When the tilting structure with the block has been withdrawn, the affair is to be turned quarterway on pivot-pin 26 so that the block rests on pallet 32 instead of on the mold floor, and it is highly important that the pallet fit very solidly up against the block. This is insured by pressing down- X ward on the handle and bearer blocks, for l the diagonal pin ant slot arrangement then forces the pallet snugly against the block. The block having been turned on its side may be carried away, together with the pallet on which it rests, and the mold floor from which the block has been freed may be replaced. in the press, and everything is ready for a repeated procedure.

I claim 2* l. A block molding press comprising, a rigidly supported mold, amold roof adapted for movement downwardly into said mold for an indefinite distance controlled only by the compacting of the material pressed upon by the mold roof, a mold floor adapted for movement upwardly into and through the mold, pressure devices serving to press the mold roof and mold floor toward each other and to act independent of each other so as to compact a mass of indefinite thickness within the mold, a stop to limit the upward movement of the mold floor to a definite distance from the top of the mold under the influence of the pressure device acting upwardly on the mold floor and irrespective of the vertical position of the mold roof. whereby when the pressure on the mold roof is relieved the mold floor rises to a definite distance from the top of the mold, and mechanism for subsecpiently elevatin the mold floor to the top of the mold, whereby there may be produced in the mold a block of indefinite thickness and definite compactness whose surplus thickness may be struck off at the top of the mold while the position of the mold floor is controlled by said step. combined substzmtially as set forth.

2. A block molding press comprising. a rigidly supported mold, a mold roof adapted for movement downwardly into said mold for an indefinite distance controlled only by the compacting of the material pressed upon by the mold roof, a mold floor adapted for movement upwardly into and through the mold, a lower follower separably supporting the mold floor, a pressure device to press the mold roof downwardly, a pressure device to press the follower and mold floor upwardly, a stop to limit the upward movement of the follower so as to bring the mold floor a definite distance from the top of the mold and irrespective of the vertical position of the mold roof, whereby when the pressure rises to a definite distance from the top of the mold, and mechanism for subsequently elevating the mold floor away from the follower and to the top of the mold. whereby there may be produced in the mold a block of indefinite thickness and definite compact ness whose surplus thickness may be struck off at the top of the mold while the position of the mold floor is controlled by said stop, combined substantially as set forth.

on the mold roof is relieved the mold floor like 3. A block-molding press comprising, a base, a mold supported thereby, a lower follower below the mold, a lower, ram for forcing the lower follower up, an upper follower above the mold, an upper ram for forcing the upper follower down, a pullback device for raising the upper follower, a mold; floor connected with the lower ram, a horizontal guideway carried by the upper follower, downwardly projecting extension piece sliding in said guideway, and a mold roof carried by the base of the extension piece, combined substantially as set forth.

it. A block-molding press comprising, a base, a mold supported thereby, alower fol lower below the mold, a lower ram for forcing the lower followerup, an upper follower above the mold, an upper ram for forcing the upper follower down, a pullback device for raising the upper follower, a mold floor connected with the lower ram, a mold roof connected with the upper ram, a horizontal guideway at one side'of the top of the mold,

a block-tilter arranged to slide in said guideway, inwardlv projecting" arms carried by the block-tilter and adapted to pass in *a-rdly over the side of the mold and into a position under the blockwhen the bloclris forced upi'vardly out of the mold, and a pallet carried by the tilter and adapted to lie againsttheside atthe block when the,

'blpek is supported on said arms, combined substantially as set forth.

A block-moldlng-press comprising, a

base, a mold supported thereby, a lower follower below the mold, a lower ram for fore-l ing the lower follower up, an upper fol-i lower above the mold, an upper ram forv forcing the upper follower down, a pullback device for raising the .upperfollower, a mold floor connected with the lower ram, a mold roof connected with the upper ram, a

horizontal guideway at one side of the top,

of the mold, ablock tilter arranged to slide in said guideway,-inwardly projecting arms carried bythe blook-tilter and adapted to pass inwardly over theside of the mold and intoa position under-the block when the blockis forced upwardly out of the, mold, a pallet carried by the tilter and adapted to tie against the side of the block when the block is supported on said arms, and means for shifting said pallet inwardlv relative to said arms, c'embined substantially as set forth.

A block-molding press comprising, a base, a mold supported thereby,a lower follower below the mold, a lower ram for forcing the lower follower up, an upper follower 7 above the mold, anupper ram for forcing the upper follower down, a pullback device for raising the upperfollowena mold floor connected with the lower ra1n,a mold roof connected with the'upper ram, a horizontal guideway at one side of the top of the mold,

a. block-tilter arranged to slide in said guideway, inwardly projecting arms carried by the block-tilter and adapted to pass inwardly over the side of the mold and into a position under the block when the block is forced upwardly out of the mold, a pallet carried by the tilterand adapted to lie against the side of the block when the block is supported on said arms, amember carried by the blocktilter at right angles to its arms, bearer-bars carried by said member and lying against the outer. surface of the pallet, and cooperating pins and diagonal slots connecting the bearer bars with said tilter member and serving to shift the pallet inwardly when the bearer-bars are moved downwardly, combined substantially as set forth.

7. A. blockmolding pressicomprising, a base, a mold supported thereby, a lower follower below themold, a lower ram for forcing the lower follower up, an upper follower above the mold, an upper ram for forcing the upper follower down, a pullback device for raising the upper follower, a mold floor connected with the lower ram, a mold roof connected with the upper ram, a horizontal guidewa-y rigidly supported at one side of the top of the mold, a block-tilter-mounted in said guideway, a pallet carried by the block-tilter and adapted to be moved inwardly to position against the side of the block, arms projecting inwardly from the block-tilter and adapted to pass inwardly over the side of the mold and to position under the block, expulsion rams disposed below the mold and adapted to push the block up out of the mold,'and stops to limit the upward movement of the expulsion rams to such position that the arms of the blocktilter' will pass below the block, combined substantially as set forth.

S. A block-molding press comprising, a base a mold supported thereby, a lower follower below the mold, a lower ram for forcing the lower follower up, an upper follower above the mold, an upper ram for forcing the upper follower down, a pullback device for raising the upper follower, a mold floor cennected with the lower ram, a mold roof connected with the upper ram, a horizontal guideway rigidly supported at one side of the top of the mold, a block-tilter mounted in said guidew ay, a pallet carried by the blocktilter and adapted to be moved inwardly to position against the side of the block, arms projecting inwardly from the block-tilter and adapted to pass inwardly over the side of the mold and to position under the block, expulsion rams disposed below the mold and adapted topush the block up out of the mold, upwardly presenting shoulders on the expulsion rains, and vertically adjustable lOO brackets block elevated by them will be above the level of the arms of the block tilter, combined substantially as set forth.

9. A block-molding press comprising, a base, a mold supported thereby, a lower follower below the mold, a lower ram for forcing the lower follower up, an upper follower above the mold, an upper ram for forcing the upper follower down, a pullback device for raising the upper follower, a mold floor connected with the lower ram, a mold roof connected with the upper ram, a pair of horizontally sl tted brackets projecting outwardly from the top of one side of the mold, a pivot pin disposed in the slots of the and adapted for movement therein to and from the mold, a pair of arms mounted for rocking motion on said pivot-pin and adapted to pass over the side of the mold to position under an expelled and elevated block, a pair of arms rigid with and at right angles with the first-mentioned arms, pins projecting from said arms parallel with said pivot pin, a pair of diagonally slotted bearer-bars engaging said pins, a handle-bar connecting the outer ends of said bearer bars, and a pallet lying against the inner faces of the bearer-bars and adapted to take position against the expelled block, combined substantially as set forth.

10. A block-molding press comprising, a

base, a mold supported thereby, a moldfioor adapted for upward movement within the mold, a mold-roof adapted for downward movement within the mold, pullback mechanism for moving the mold-roof upwardly, pressure devices for moving the mold-floor and mold-roof toward each other, means for limitii'lg the ascent of the mold-floor under the influence of said pressure devices, and mechanism independent of said pressure de vices and independent of said limiting means for lifting the mold floor to the top of the mold, whereby the mold floor and roof may produce a mass of definite compactness and indefinite thickness with its base resting a definite distance from the top of the mold which may serve as a gage in striking 01f the surplus material of the mass, combined substantially as set forth.

11. A, block-molding press comprising, a base, a mold supported thereby, a mold-floor adapted for upward movement within the mold, a mold-roof adapted for downward movement within the mold, pullback mechanism for moving the mold-roof upwardly, pressure devices for moving the mold-floor and mold-roof toward each other, expulsion "devices for elevating the mold-floor independently of said pressure devices, and means for limitlng the ascent of the moldfloor under the influence of said pressure devices independent of the position of the mold roof, whereby when pressure on the mold roof is relieved the mold floor may be supported at a definite distance from the top of the mold so as to permit excess material in the compactive mass to be struck oli of the top with the top of the mold acting as a gage, combined substantially as set forth.

A block-molding press comprising, a base, a mold supported thereby, a moldl'loor adapted for upward movement within the mold, a mold-roof adapted for downward movement within the mold, a vertically movable lnnizontal guidcway disposed above the mold-roof, a downward extension having its top sliding in said guideway and having the mold-roof secured to its base, pullback mechanism for moving the mold-roof and guideway upwardly, pressure devices for moving the mold-floor and mold-roof toward each other, and means for limiting the ascent of the mold-floor under the influence of said pressure devices, combined substantially as set, forth.

13. A block-molding press comprising, a base, a mold supported thereby, a moldfloor adapted for upward movement within the mold, a removable mold-roof, a pressure device for moving the mold-floor toard the mold-roof for the purpose of compressing material betwcon the floor and the roof, expulsion mechanism for elevating the mold-floor and formed block out of the mold, a horizontal guideway at the top of the mold, and a pair of connected horizontal, arms adapted to slide inwardly in said guideway and pass under the moldfloor, combined substantially as set forth.

1%. A. block-molding press comprising, a base, a mold supported thereby, a moldtloor adapted for upward movement within the mold, a removable mold-roof, a pressure device for moving the mold-floor toard the mold-roof for the purpose of compressing material between the floor and the roof, expulsion mechanism for elevating the moldgtloor and formed block out of the mold, a horizontal guide ay at the top of the mold, horizontalarms adapted to slide in said guide way inwardly and take posi tion under the elevated mold-roof, bearerbars rigidly connected with and at right angles to said arms, a pallet disposed against said bearer bars, and a pivotal connection between said arms and their guideway to permit the arms to be turned to vertical position, combined substantially as set forth.

JOHN C. TITUS. lVitnesses G. T. Hanmxo, JOHN H. Blinrnair.

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