US734531A - Machine for compressing material into form. - Google Patents

Description

No. 734,531. I BATENTBD JULY 2s, 1903.. H. J. FLOOD.

MACHINE FOR GOMPRESSING MATERIAL INTO FORM.

@2f/@M I -l u waffle/551.

No. 734,531. PATBNTBD JULY 2s, 1903,.. H. J. FLOOD.

MACHINE FOR GOMPRESSING MATERIAL INTO FORM.

APPLIOATION HLD AUG. o, 1901.

N0 MODEL. 4 4 SHEETS-SHEET Z.

a oms pas co: momuwo., Msnmcjpu. n, c:

r PATBNTED JULY 2a, 1903.v H. J. FLOOD. MACHINE PoR coMPRBssING MATERIAL INT0 FORM.

APPLICATION FVILED AUG. 9|`1901.

4 SHEETS-SHEET 3.

No Monm..

Karr ZZoocZ 23%# 'PATENTEL JULY 28, 1903. H. J. FLOOD. MACHINE FOR GOMPRESSING MATERIAL INTO FORM.

APPLICATION FILED AUG. 9. 1901.

mmonm.. 4 SHEETS-SHEET 4..

UNITED f STATES ratented Jftny 2s, ieo.

PATENT. OFFICE.

HARRY J. FLOOD, oF OHIOAGO, HiiNoi'sl.

MACHINE FOR OoIvIPRI-:ssINe MATERIAL INTO FORNI.

SPEIFICATIN' forming part of Letters Patent N ou 734,531', dated July 28, 1903.

' Application filed August 9, 1901. Serial No. -71.434. (No model.)

To all whom t may oon/cern,.-

Beit known that I, HARRY J. FLOOD, a citizen of the United States, residing in the city of Chicago, county of Cook, and State Of Illinois, have invented a new and useful Im` provement in Machines for Compressing Material into Form, of which the following is a specification.

My invention relates to machines for compressing material into form, and is especially applicable to brick-machines ofthe type wellknown as toggle-machines.

Attention is hereby directed to a separate application for patent on the type of mold herein shown, said application having been filed on the 28th day of August, 1902, Serial No. 121,269.

The objects of my invention are, first, toprovide means for facilitating the positioning of the lower plungers upon the lower cross-head; second, to avoid the danger of the clay or other material gaining access to that portion of the surface of the lower crosshead which forms a seat for the lower plungers and supports thereof, and, third, to provide the other details hereinafter set forth. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a plan view of the mold-table. Fig. 2V is a vertical sectional view taken on the line 2 2, Fig. 1, showing the mold-table, lower portions of the machineframe,the lower cross-head, and connected parts. The lower plungers and supporting top plate are shown seated upon the lower cross-head. Fig. 3 is a sectional view of the parts illustrated in Fig. 2, the lower plungers and top plate being shown in a raised position above the lower cross-head. Fig. 4 is a sectional view Of the mold-table in a vertical direction on the line 4: 4, Fig. 1, and showing the position of the partition-plates. Fig. 5 is a vertical sectional view of the mold-table, taken on the line 5 5, Fig-1. Fig. 6 is a vertical sectional view of the mold-table, taken on the line 6 Fig. 1, and indicating also the arrangement of the lower plungers and cross-head. Fig. 7 is a sectional view of the mold-table, taken on the line 7 7, Fig. 1. Fig. 8 is a detail -view of lower cross-head and connected parts. Figs.

9 and 10 are top and transverse vertical sec;

,' tional views, respectively, of the parts shown in Fig. 8. Fig. 11 is a top viewin detail of the spring-washer employed in connection with the plunger-stems. Fig. 12 is 'an enlarged side view ofa springwasher.- Fig. 13 is a transverse vertical sectional view of the machine, taken through the molds. Fig. 14 is a detail sectional view showing the devices for adjusting the depth of mold.

Similar characters refer to similar parts throughout the several views.`

The parts a a, represent the lower portion of the main framework ofthe machine,where on the Inold-table is supported. Said moldtable comprises the front piece or cross-block b and back piece orcross-'block c, which are provided vwith the recesses b' b and o o, respectively, for receiving the extremities of the end blocks old.y Said front and back pieces b and o of the m01dtable,which are of `massive construction to aord great rigidity and strength, extend across the machine and the cap-screws a a'. The side frames a are apertured to loosely receive said cap-screws to permit adjustment yof the parts of the mold-table. The `front apron e and back apronV f arebolted to the front and back parts, respectively,'of the mold-table. The

drawn firmly tO a bearing upon the said end blocks in a direction from front torear of 'the' machine by means of 'heavy bolts g g, which itloosely in said front and back pieces and also by preference pass through said end receive said bolts. In the transverse direction said end blocks are forced inwardly toward the centerof the machine-by means of the set-screws??l h. Said front and back pieces or cross-blocks b and o of the moldtablev are 'suitably drilledrand tapped at the recesses b and c for receiving said setscrews, while the side frames areapertured in such a manner as to "receive said setscrews loosely. v screws forces 'saidend blocks irmly onto the mold-lining plates, as will hereinafter appear.

The molds tare formed by the .end liners j and side liners'lc, which consist, preferably,

blocks, which latter are suitably recessed to substantially symmetrical in form and are are bolted to the side frames a tt by means of front and back pieces ofthe Inold-table are The tightening of s aid set- IOI) of steel platcs having polished inner faces, said plates extending from front to rear between the parts b and c of the mold-table. The extremities of the partition-plates m and side liners 7a and also the back or rear sides of the end liners j are mortised to tit into the correspondingly-chambered front and back parts b and c of the mold-table. It is evident that when the bolts gare screwed tight the side liners and partition-plates are prevented from moving in the direction from front to rear. The motion of the side liners and partition-plates in a transverse direction is prevented b v the end blocks d, held by the set-screws t, the end liners j serving as distance-pieces to spread said side liners and preserve the proper width of mold. The pressure of the side liners k against the end liners j holds the latter rmly in position. It follows, therefore, that the strain upon the mold-plates due to the tendency of the clay or other material to expand laterally under compression is taken up in a transverse direction by the parts b and c of the mold-table, which are of ample proportions and at the same time simple in construction. Moreover, the pressure uponthe ends of the molds is also taken up by said parts b and c, which being drawn together by the bolts g are subjected to a transverse or breaking strain. Consequently the mold-table is not only selfcontained, but consists of but four principal piecesto wit, the end blocks CZ d and parts b and c.

In operation when it is desired to alter the size of the mold or renew worn parts the screws h and bolts g are loosened sufficiently to permit the end blocksand parts b and c of the mold-table to be backed off, so that the mortised end and sideliners may be removed. The size of the molds will be determined by the thickness of said lining-plates.

The lower plungers n, which are designed to reciprocate vertically in the molds z', consist of castings provided upon their top surfaces with the face-plates o. Said plungers are secured by means of tap-boltsto the top plate 1J, which extends across the machine beneath the molds t'. During compression said top plate p seats upon the lower cross-head, which is a built-up member composed ofthe side plates q q, secured, preferably, by riveting to the end blocks r Ir. The cross-head is bolted to the side bars's s, which are moved verticallybyanysuitable mechanism. After a brick has been formed in the mold it is de livered onto the front apron in the manner well understood in the art, and it is desirable that thelowerplungersshallremain flush with springs in the manner now to be described. The plunger-stems tt are attached to the top plate p by means of the bolts u and to the cross-bar 'U by means of the bolts w.

In order to afford an even upper surface to the top plate p, said plate is recessed to receive the heads of said bolts u. The crossbar /u is adapted to slide vertically in the ways x, provided in the auxiliary frame fy beneath the main framework of the machine. The upward travel of said bar is limited by the contact of the bolts l, mounted in said bar, with the stops 2, formed in said frame y, and the parts are so proportioned fthat said bolts will engage said stops when the lower plunger face-plates are Hush with the top of the molds. The lever 3 has a bearing upon said bar n and is pivotally connected at its forward extremity to the lower extremity of the vertical adjustingrod 4. As best illustrated in Fig. 14, the vertical adjustment of said rod 4 is determined by means of the sleeve 5, which is threaded to engage said rod and has a bearing in the gear-casing 6. Said casing is supported from the part ZJ of the mold-table. The sleeve 5 has formed at its upper portion the bevel gear-wheel 7, which meshes with the bevel gear-wheel 8, mounted upon the horizontal shaft 9. Said shaft,which has a bearing in the bracket b2, pivotally supports said gear-casing and is rotated by means of the hand-wheel l0, and the arrangement is such that the rotation of said shaft results in the verticalmovement of said rod 4, and consequently determines the position ot' the forward extremity of the lever 3.

In this construction the top plate p, stems t, and lower plungers n are independent of the lower cross-head and are raised therefrom by the springs ll, which in the present construction encircle said stems t and act against the washers 12 beneath the said top plate p. The lower extremities of said springs seat upon the spring-Washers 13. Said washers 13 are removably mounted in the lower crosshead by means of the pins 14, the Shanks whereof are inserted in apertures 15in the side plates q in such a manner that the heads 16 of said bolts project inwardly and tit into the sockets 17in said washers. This open construction of the lower cross-head prevents accumulation of dust, which lnay accidentally get beneath the top plate p, for the reason that any dust so entering would drop downward through said cross-head and would not be retained thereby. The springs impart a tendency for the top plate p to rise from the cross-head; but it is necessary that the lower plungers shall move downward at the proper time to afford sufficient depth of mold. This lowering of the lower plungers consequent upon the downward movement of the lower cross-head q is accomplished by means of the forked rod 18, which is pivotally attached to said lower cross-head and engages the pin 19, mounted upon the lever 3. Said rod and pin virtually form a movable pivot IOO or bearing for said lever 3, and it is evident vthat in operation when said pin and forked rod are in engagement a raising or lowering of the adjusting-rod 4 will have a reverse effect upon the top plate and lower plungers relatively to the lower cross-head.

In order to prevent the access of clay or 'other material to the contact-surfaces between the top plate p and side plates q, guards 20, consisting, preferably7 of sheet metal, are attached to said top plate, as shown in Figs; 2 and 3. This considerably simplifies and improves upon the constructions heretofore employed, for when the lower plungers are permitted to rise individually from thecrosshead it is difficult to protect the seating-surfaces from dust, and an accumulation of dust will create a tendency to wrest the plungers from the plunger-stems.

One of the important features of the prescnt invention lies in the mounting of the lower plungers upon a common top plate, since by this means the plungersv may be mounted without the necessity of considering the plungerstems-that is to say, the plungers may be shifted 'upon the top plate regardless of the positions of the stems. By employing this construction inv connection with themold-table above described it is possible to alter the number of molds in a machine and still maintain symmetrical disposiltion and spacing of the molds.

By substituting plungers of the required size and correspondingly altering the molds brick of any desired dimensions may be made.

It is obvious that as the top plate p is secured to each one of the plunger-stemstone or two of the bolts u may become loosened without permitting the springs-11 to throw the lower plungers n above'the top of the mold, to thereby interfere with other 'parts of the Y machine. In the construction heretofore employed, in which each plunger is individually secured to its plunger-stem, the loosening of anyone plunger fromA its stem would permit' such plunger to rise too far, with the danger of wrecking the machine. By the new construction therefor the danger of the lower plungers accidentally rising by accident too far is materially lessened.

Although the partp in this present machine is shown to be substantiallya parallelepiped lower plungers; springs supporting said topv plate; and a lower cross-head forming a seat for saidtop plate, said cross-head having a chamber therein open top and bottom wherein saidl springs are mounted, said springs being thereby accessible from the bottom of the cross-head. i

2. In a machine for compressing material into form, the combination with the molds and upper and lower plungers sliding therein, of a lower cross-head open top and bottom; a top plate seating thereon; means for raising said top plate independently of said cross-head and means extending upward through said cross-head from a point beneath the same for limiting the rise of said top plate from said cross-head.-

3. In a machine for compressing material into form, the combination with the molds and upper plungers of a lower cross-head, a top plate seating thereon, lower plungers mounted upon said top plate, plunger-stems secured to said top plate, springs supported` at oneextremity from said cross-head and at the other extremity acting upon' said top plate to raise the same from its seat; and means for limiting the rise of said top plate from said cross-head.

4. In a machine for compressing material into form, the combination with the molds,

and upper and lower plungers sliding therein ;v

of a top plate carrying said lower plungers, a

lower cross-head consisting of parallel plates secured to end blocks, springs between said parallel plates acting upon saidtop plate to ICO yieldingly7 support the same on said crosshead, washers for supporting said springs,-

and pins removably mounted in said parallel plates of the cross-head for supporting said washers.

5. .In a machine for compressing material into form, the combination with the molds, upper and lower plungers sliding therein, a,

cross-head and a top platefor supporting the lower plungers, of springs sustaining the top plate yieldingly on the cross-head; a cross-A bar sliding in vertical guideways below said `vcross-head; and stems connecting said top plate with the said cross-bar.

6. The combination with a mold, of upper and lower plungers sliding therein, a top plate IIO for carrying the lower plungers, a cross-head for supporting said top plate, sprin gs sustaining the lower plunger yieldingly on the crosshead, a cross-bar sliding in vertical guideways below the said cross-head, stems coninecting the said top plate with the said crossf bar, and a lever pivotally connected with said `cross-bar and engaged with a fulcrum upon the machine-frame, said lever being adapted for contact with a part of or upon the lower icross-head which limits the upward movement of the top plate and lower plungers.

7. The combination with a mold, lof upper.

and lower plungers sliding therein, plate 'carrying the lower plungerm crossheady for supporting the top plate, a spring or a. top

its equivalent sustainingthe top plate yieldy Y I ingly on the lower cross-head,a lever connected with the top plate and having a fulcrum upon the machine-frame, a rod connected to the lower cross-head and forked or slotted at its lower end, and a pin secured in said lever and adapted to engage the forked or slotted end of said guide-rod to limit the upward movement of the top plate and lower plungers at the time of filling the mold.

8. The combination with a mold, of upper and lower plungers sliding therein, a plate whereon the lower plungers are mounted, a cross-head for supporting said plate, springs sustaining said plate yieldingly on the lower cross-head,a cross-bar located below the lower plungers and having sliding connection with the machine frame, stems passing through the lower cross-head and connecting the said plate with the said cross-bar, a lever` fulcrumed upon the machine-frame and pivotally connected with the said cross-bar, and a stop on the lower cross-head adapted for contact with the said lever to limit the upward movement of the said plate under the action of said springs.

9. The combinationwith a mold, of upper and lower plungers sliding therein, a crosshead, a continuous plate whereon said lower plungers are mounted,springs sustaining said plate yieldingly on the lower cross-head, a lever connected with the said plate, a vertically-movable threaded adjusting-rod, a pivot connecting said rod with said lever, a revolving sleeve threaded to engage said rod, a frame affording bearings for said sleeve and mounted upon pivotal supports or trunnions to afford freedom of lateral movement in the lower end of said adjustin g-ro'd, substantially as described.

10. In a machine for compressing material into form; molds; upper and lower plungers sliding therein; and a lower cross-head cornprising plates secured together at a slight distance apart; in combination with a top plate seating upon said parallel plates and supporting said lower plungers; and means extending between said parallel plates for yieldingly supporting said top plate and tending to raise the same from said parallel plates.

1l. In a machine for compressing material into form, the combination of molds, upper and lower plungers sliding therein, a top plate carrying said lower plungers; springs supporting said top plate; and a built-up lower cross-head forming a seat for said top plate, said cross-head comprising parallel plates secured together a sufficient distance apart to receive said springs between them, whereby access may be had to said springs from beneath the cross-head.

l2. In a machine for compressing material into form, the combination with the molds, upper and lower plungers sliding therein and a lower cross-head, of a top plate for sup porting said lower plungers; means for sustaining said top plate yieldingly on the crosshead and tending to raise said top plate therefrom; and means adjustable at a point outside of said cross-head for controlling the height to which the top plate may rise from said cross-head.

13. In a machine for compressing material into form, the combination with the molds, upper and lower plungers sliding therein and a lower cross-head, of a top plate for supporting said plungers; means for sustaining said top plate yieldingly on the cross-head and tending to raise said top plate therefrom and means adjustable at a stationary point for controlling the height to which the top plate may rise from said cross-head.

' 14. In a machine for compressing material into form, the combination of molds; upper and lower plungers sliding therein; a lower cross-head comprising parallel plates secured together at their ends and having a space between them; a top plate seating upon said parallel plates and carrying the lower plungers; and said top plate coveringthe space between said parallel plates to thereby prevent the access of clay or other foreign matter to the parts beneath; and means for yieldingly supporting said top plate, said supporting means extending between said parallel plates and tending to raise said top plate therefrom.

l5. In a machine for compressing material into form, the combination of molds; upper and lower plungers sliding therein; a lower cross-head open top and bottom; a top plate seating upon said parallel plates and carrying the lower plungers; stems secured to said top plate for limiting the rise thereof, said stems extending downward through and beneath said cross-head; and springs for yieldingly supporting said top plate and tending to raise thel same from said parallel plates.

16. In a machine for compressing material into form, the combination of molds; upper and lower plungers sliding therein; a lower cross-head comprising parallel plates secured together at their ends and having a space between them; a top plate seating upon said parallel plates and carrying the lower plungers; stems secured to said top plate for limiting the rise thereof, said stems extending downward through said cross-heads; springs for yieldingly supporting said top plate and tending to raise the same from said parallel plates, and means connected to said stems below said cross-head foradj nsting the height to which said top plate may rise from said cross-head.

HARRY J. FLOOD. Witnesses:

WM. G. MILLER, HOWARD M. COX.

ICO

Images