US1220452A - Block-molding machine. - Google Patents

Description

F. PETERS. BLOCK MOLDING MACHINE.

APPLICATION FILED JUNE I5, 1916- l,220,452. Ps ltntedvMar. 27, 1917.

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BLOCK MOLDING MACHINE.

APPLICATION FILED JUNE 15. 1916.

Patented Mar. 27, 1917.

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F. E. PETERS.

BLOCK MOLDING MACHINE.

APPLICATION FILED JUNE 15. l9l'6.

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F. E. PETERS.

BLOCK MOLDING MACHINE.

APPLICATION man JUNE15. ms.

Patented Mar. 27, 1917.

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pinirnn emer es PATENT anion FRANK ELWOOD PETERS, OF INDIANAPOLIS, INDIANA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF ONE-THIRD TO JOEL ID. EASTMAN AND ONE-THIRD 'IO SQUIRE R. GREEK, BGTH OF INDIANAPOLIS, INDIANA.

BLOGK-MOLDIIIG MACHINE.

Specification of Letters Iatent.

Patented Mar. 27, 1917.

Application filed June 15, 1916. Serial No. 103,770.

To all whom it may concern:

Be it known that I, F RANK ELwooD Pmnss, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Block-Molding Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention is a machine for constructing the cement blocks shown by my U. S. Patent Number 1,154,546 of September 21, 1915, said machine consisting of three units at each one of which a laborer will be employed, one for filling the molds with cement as they are successively presented, another for operating a' press to-tamp the cement in the mold, and a third for operating an ejector for removing the completed blocks.

The principal object of the invention is to provide'a comparatively simple machine which may be rapidly operated and which will be highly efficient and durable, a plurality of novel features of construction being employed which will be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application and in which:

Figure 1 is a top plan view of the improved machine;

Fig. 2 is a sectional view taken substantially on the plane of the line 22 of Fig. 1, with parts in elevation;

Fig. 3 is a vertical section substantially on the plane of the line 33 of Fig. 2;

Fig. 4 is a view somewhat similar to Fig. 3 but cut on the plane represented by the lines 4& of Figs. 1 and 5, showing more particularly the construction and manner of operation of the block ejecting means;

Fig. 5 is a plan view of the base and the operating mechanism for the block ejecting means;

Fig. 6 is a detail sectional view on the plane of the line 66 of Fig. 5, showing more particularly the means for preventing the molds from being forced upwardly while operating the ejector;

Fig. 7 is a top plan view of one of the mold supporting frames and the hub to which said frames are secured;

Fig. 8 is a sectional view of Fig. 7 taken on the planes represented by the line 88;

Fig. 9 is a top plan view of the horizontal arm upon which the press operating means is mounted;

Fig. 10 is a top plan view of one of the molds; I

Fig. 11 is a longitudinal sectional view thereof on the plane of the line 11-11;

Fig. 12 is a transverse section of said mold on the plane designated by the line 12-12 of Fig. 10;

Figs. 13 and 14- are respectively detail vertical and horizontal sections on the planes of the lines 1313 and lei-14: of Fig. 2, showing more particularly the construction of the means for locking the molds in proper position for cooperation with the press and e3ector;

Fig. 15 is a plan view of the pallet employed for constructing the majority of the blocks;

Fig. 16 is a transverse section of Fig. 15 on the plane of the line 16-16;

Fig. 17 is a view similar to Fig. 2 but illustrating a rearrangement of parts to permit shorter and irregularly formed blocks to be constructed;

Fig. 18 is a horizontal section on the plane of the liney1S-18 of Fig. 17, showing the application of a filler block to one of the molds for constructing the blocks last mentioned, this view also disclosing the use of a slightly different form of press plate;

Fig. 19 is a plan view of the pallet employed when the parts disclosed in Fig. 18 are used; and

Fig. 20 is a perspective view of the filling block shown in Fig. 18.

In specifically describing the structure shown in the drawings above briefly described, similar characters will be employed to designate corresponding parts through out the several views and reference willbe herein made to the numerous elements by their respective indices. To this end, the numeral 1 designates a base consisting of an annular track 2, an anchoring member 3 within said track, a trio of radiating arms 4 connecting the parts 2 and 3, and a horizontal arm 5 extending outwardly from the track 2.

An upright standard 6 is threaded at its lower end in a boss 7 at the center of the member 3, upper and lower nuts 8 and 9 being mounted on said standard in contact with the upper and lower ends of the aforesaid boss. A second standard 10 rises from the outer end of the arm 5 and is anchored in the same manner as standard 6. A horizontal arm 11 preferably in the form of a casting extends between the upper ends of the standards 6 and 10 and is provided at one end with a split collar 12 slidably and rotatably surrounding the standard 6, said collar having ears 13 on opposite sides of its slit and a bolt 14 passing through said ears, whereby the collar may be contracted around the standard to prevent rotation or sliding. Since an upward trust is exerted on arm 11 whenever the press to be de scribed is operated, a jam nut 15 is preferably threaded on the standard 6 in contact with the upper end of collar 12. The other end of the arm 11 is formed with a transverse slot 16 whose sides are formed on an are having the axis of the collar 12 as its center, said slot receiving therein the upper.

end of standard 10. By this arrangement it will be observed that when the bolt 14 is loosened suiiiciently, the arm 11 may be ad justed laterally to a slight extent, this being essential for reasons to become clear as the descriptive matter proceeds. For locking the slotted end of arm 11 in adjusted position, upper and lower nuts 17 and 18 are threaded on the standard 10 in contact with said end.

A turntable 20 is provided with wheels 21 traveling on the track 2 and with a hub 22 which is rotatable 0n the intermediate portion of the standard 6. The hub 22 is preferably in the form of a casting and is provided with a trio of angularly disposed attaching flanges 23 by means of which rectangularframes 24 are secured thereto, said frames having each mounted thereon a rectangular block mold 25.

Each frame 24 includes a. pair of transverse bars 26 spaced inwardly from its ends, said bars having at their ends vertical guides 27 and being formed between their ends with bosses or the like in which the upper ends of guide bars 28 are anchored. Cross heads 29 are slidably mounted on the bars 28 and are limited in their downward movement by nuts or other appropriate stops 30, said cross heads each having a pair of upright rods 31 which rise through the guides 27 and through apertures in the bottoms of the molds 25, said rods servin to support on their upper ends the pallets 32 whose struc ture will be hereinafter described. (See Fig. 3). The rods 31 also eject the pallets 32 and the completed blocks when the cross heads 29 are raised.

Each of the frames 24 has mounted there on a rock shaft 33 having a pair of crank arms 34 which are connected by links 35 with the cross heads 29, each of said shafts also having an additional crank arm 36 which is preferably curved as shown most'clearly in Figs. 3 and 4. hen the turntable is rotated to the proper position, the arm 36 of any of the molds is adapted to be raised to the position shown in Fig. 4 by an arm 37 carried by a rock shaft 38 mounted in bearings 39 on one of the arms 4, said shaft having an operating lever 40 and a stop 41, the latter serving to limit the movement of said shaft in either direction. The free end of arm 37 is preferably flattened at 42 as depicted in Fig. 4 in order that any of the arms 36 may be supported thereby when raised, even though the operator of the ejecting means should release the lever 40.

The outermost of the bearings 39 is provided with a rigid hook 43 which rises therefrom and is adapted to overlie lateral stops 44 disposed one on each wheel bracket 45 of the numerous frames 24, it being within said brackets that the wheels 21 are mounted. It is to be understood that the hook 43 successively engages the stops 44 as the turntable is successively turned from one position to another and that the provision of this construction will prevent any possibility of canting the turntable 20 when the lever 40 is being operated to eject the completed blocks. Another of the arms 4 is equipped with bearings 39 constructed in the same manner as those above described in order that the location of the block ejecting means may be changed if this should be desirable.

For packing or tamping the cement in the molds 25 as they are successively presented beneath the arm 11, a vertically moving tamping plate 46 is provided, this plate being of the same shape as the pallets 32. A pair of transverse bars 47 are detachably secured by screws or the like 48 t0 the upper side of plate 46, said bars having upright rigid guide rods 49 which are normally re ceived in vertical guides 50 formed as integral parts of the arm 11, said rods, however, being capable of reception in additional vertical guides 51 on said arm, the last named guides being disposed nearer together than guides 50. Ears 52 rise from the remote edges of the bars 47 and are pivoted by means of a horizontal rod or the like 53 to the lower ends of a pair of links 54 which pass through transverse slots 55 ex tending through the arm 11 between the guides 50. The upper ends of the links 5a are provided with bands 56 surrounding eccentrics 57 on a horizontal shaft 58 which extends above the arm 11 and is rotatably mounted in suitable bearings 59 which rise from said arm. A hand wheel 60 is secured on the outer end of the shaft58 for rotating the same at will whereby the eccentrics are made to raise and lower the tamping plate at, but in some cases it may be desirable to employ more powerful means for turning said shaft. For accomplishing this result, a hand lever (31 is mounted for oscillation on the shaft 58 and is provided with a. dog 62 adapted to engage a ratchet 63 secured to the aforesaid shaft.

For locking the turntable 20 against rotation automatically when turned the proper amount after pressing one block and ejecting another, a spring projected locking lever 64 is fulcrumed between its ends to the standard l0, the inner end of said lever cooperating with keeper plates 65 whose lower edges are beveled to points and formed at said points with notch s to receive said end of the lever. Plates 65 have therein a pair of horizontal slots 66 through which screws or the like 67 pass to secure said plates to the outer ends of the frames 24-, one of said plates being secured to each frame. By attaching the plates 65 in this manner, they may be adjusted to accurately position the molds 25 for cooperation with the manually operated unit of the ejecting means, namely, the parts 37, 38 and 40, and after this adjustment has been made, the arm 11 may be adjusted laterally by loosening the nuts 17 and the bolt 14, thereby correctly disposing the tamping plate 46 for proper reception in the molds. The arm 11 may be adjusted at any other time as occasion may demand. 1 As the press operates and forces the tamping plate l6 downwardly upon the cement in the mold, some provision must be made for permitting any excess material to escape and as simple means for allowing this, the bottom of each mold 25 is formed with a plurality of slots or other suitably shaped openings 68, said material being permitted to pass through the pallets 82 in the slight spaces which exist between upright cores 69 rising from the bottoms of the molds and openings 70 formed through said pallets. The latter are preferably stamped from sheet metal and have suitable corrugations through which the openings 70 pass, this construction being necessary for properly forming the upper and lower sides of the blocks depicted in the patent above referred to. The tamping plate 46 is identical in construction with the pallet 32 and the illustration and description of one will therefore suflice for both.

Preferably employed in conjunction with the parts so far described are a number of shallow pans 71 which are received in the cut away upper portions of the frames Qtt. These pans will receive therein any cement which may fall through the slots 68 and will thus prevent it from dropping upon the working parts of the ejecting means.

If thin blocks are to be constructed, the pallets 32 may be held elevated within the molds 25 by disposing sleeves 72 beneath said pallets and securing them to the bot toms of the molds by bolts 73 as shown in Fig. 12. When comparatively short blocks having one irregularly shaped end, are to be manufactured, said blocks being adapted for use at the ends of the joist of a building, the arrangement of parts depicted in Figs. 17 and 18 may be employed, two of these parts being illustrated in detail in Figs. 19 and 20. A filling block 7% is then placed in either end of each mold 25 and the tamping plate a6 together with the pallet will be shaped as shown in Figs. 18 and 19, the rods 49 being mounted in the guides 51 instead of in guides 50, in order that'the bars 47 may not strike the block 74 whether the latter be in one end of the mold or the other. If the block in question is disposed in the opposite end of the mold from that depicted in Fig. 18, however, it will be understood that the tamping plate L6 and the pallet must be correspondingly reversed.

From the foregoing, the numerous features of construction of the improved 1na chinewill be clear but before concluding, I will explain briefly the manner in which the same is operatec. Three laborers are required, one for filling the molds 25 with cement after the pallets have been placed therein, one for operating the press to tamp the cement after the turntable 20 has been turned the necessary amount and automatically locked by the lever (3%, and a third for operating the lever 4:0 to eject the completed blocks from the machine. The three workmen may obviously be all employed at the same time and the operation of the machine will therefore be continuous, with the result that blocks may be rapidly though correctly malnifacturcd. Particular emphasis is laid upon the adjustment and mount ing of the arm 11, upon the structure of the ejecting means, and upon the formation of the pallets and tamping plate, although the other features shown and described are deemed rather important.

In conclusion, I will state that although I have shown and described a number of specific details of construction for accomplishing probably the best results, numerous changes may he made within the scope of the invention as claimed without sacrificing the main advantages thereof.

' I claim:

1. A cement block molding machine comprising a base, a standard rising therefrom,

a turntable having a hub mounted on said standard, said table carrying a plurality of block molds, a press member for tamping the cement in the molds, and means for locking said turntable in position to dispose any of its molds below the press member; in combination with a second standard rising from the base out of the path of the table, a horizontal arm extending between and serving as a support for the press member and its operating means, one end of said arm being pivotally mounted on the first standard for slight horizontal swinging and the other end of said arm having a transverse slot receiving the upper end of the second standard, whereby said arm may be adjusted horizontally to accurately aline the press member with the mold, and means for holding the slotted end of the arm against movement after adjustment thereof.

2. A cement block molding machine comprising a base, a standard rising rigidly therefrom, a turntable having a hub mounted on" said standard, said table carrying a plurality of block molds, a press member for tamping the cement in the molds, and means for locking said turntable in position to dispose any of its molds below the press member; in combination with a second standard rising from the base out of the path of the table, and a horizontal arm extending between the two standards and serving as a support for the press member and its operating means, one end of said arm having thereon a split collar slidable and rotatable on the first named standard, said collar having a clamping bolt whereby it may be contracted around its respective standard, the other end of said arm having a transversely extending slot receiving the upper end of the second standard to permit horizontal adjustment of the arm to accurately aline the press member with the mold, and nuts threaded on said second standard in contact with the upper and lower side of said arm. 3. A cement block molding machine comprising a base including an annular track, a plurality of arms extending inwardly from said track, an anchor member to which the inner ends of said arms are secured, and a horizontal arm projecting outwardly from the track, an upright standard rising rigidly from the aforesaid anchor member, a second standard rising rigidly from the outer end of the last named arm of the base, and a horizontal arm extending between and secured to the upper ends of the two standards; a turntable having a hub mounted on the first named standard and having wheels traveling on the aforesaid annular track, said table having a plurality of block molds, a vertically movable press member below the last named arm, operating means for said press member mounted on said arm, and means for locking said table in position to permit any one of its molds to receive said press member.

4. A cement block molding machine comprising a block mold, a tamping plate for packing cement therein, upright guide rods rising rigidly from said plate near the ends thereof, a fixed member above said tamping plate, upright guides carried by said member and receiving the aforesaid rods slidably,

means on said member for depressing said plate, and additional guides spaced inwardly from the others to permit the aforesaid rods to be moved inwardly and secured to a shorter tamping plate when shorter blocks are to be constructed.

5. A cement block molding machine comprising a mold open at its upper side, a press member adapted to be forced into said mold to pack the cement therein, and an apertured pallet to be disposed in said mold, the bottom of said mold having apertures formed therethrough to permit surplus cement to be forced from the mold when the press member descends.

6. A cement block molding machine comprising a horizontal frame having its upper side cut away substantially throughout its length to receive a pan, a mold secured on said frame, an apertured pallet to be employed in said mold, and a press member adapted to be forced into said mold to pack the cement therein, the bottom of said mold having openings formed therethrough to permit excess cement to drop into the aforesaid pan.

7. A cement block molding machine comprising a turntable having thereon a plurality of block molds each equipped with ejecting means for the completed blocks including a vertically swinging arm, a rock shaft secured against movement in respect to said turntable beneath the latter, means for rocking said shaft at will, and a second arm secured on said shaft and adapted to be forced upwardly into engagement with the aforesaid arm when said shaft is rocked, in combination with means for locking the turntable against movement when the arm on the mold is properly positioned in respect to that of the rock shaft. 7

8. A cement block molding machine combeneath the mold and having a pair of crank arms extending in the same direction, links connecting said crank arms with said cross heads, a third and curved arm extending laterally from said rock shaft beneath the mold, an additional rock shaft in a plane below the other, means for turning said additional shaft at will, and an additional arm my hand in the presence of two subscribing secured on this shaft to be forced into en- Witnesses. gagement With the last named arm of the other rock shaft to raise the latter, thereby FRANK ELWOOD PETERS 5 raising the crossheads to eject the aforesaid Witnesses:

rods. CHAS. MENDENHALL,

In testimony whereof I have hereunto set J. BU'RDETTE LETTLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of IPatentsa Washington, D. O.

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