US939543A - Concrete-block machine. - Google Patents

Description

o. E. PHILLIPS. CONCRETE BLOCK MAGHNB.

APPLIOATION FILED AUG. 7, 1908.

- Patentedr Nov. 9, 1909.

2 SHEETS-SHEET 1.

G. E. PHILLIPS. CONCRETE BLOCK MACHINE.

AIPLIOATION FILED -AUG. 7, 1908.

CTP

CHARLES EDGAR PHILLIPS, OF INDIANAPOLIS, INDIANA.

CONCRETE-BLOCK IVIACI-IIN'E.v

Specification of Letters Patent.

Patented N ov. 9, 1909.

Application led August 7, 1908. Serial No. 447,496.

To all whom it 'may concern: Y-

Be 1t known that I, CHARLEs E. PHILLLPS, 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 Cement-Block' wherein the molds are partly filled withy cement before the cores are inserted, it ofttimes happens that too much cement is first introduced into the molds so that the top of the cement will project into the path of the incoming cores, causing the cement to be rolled up in front of the cores and forced against the sides ofthe molds. Thus, the cement interferes with the cores and prevents them from moving into proper position until the cement which has been rolled up in advance of the moving cores is removed. Much time is lost in removing the cement, besides reducing the capacity of the machines.

The object of this invention is to provide means whereby the forward ends of the cores are rst elevated or raised into an inclined position before entering the molds, so that the cores will not come into Contact with the cement and thus be able to *drop into normal position at the end of said inward movement. f

3teferring to the accompanying drawings which are made a part hereof, Figure 1 is a top or plan View of the invention.' Fig. 2 is a side elevation of the construction shown in Fig. l. Fig. 3 is a transverse section of the machine on the line A-A-on Fig. l, showing the core elevated at its frontend and partly moved into the mold. Fig. 4 is a view similar to Fig. 3 except that the core is shown occupying its innermost position. Fig. 5 is a fragmentary detail view in ele* vation ofthe gate formed within the back plate of the mold.

In the drawings, 1 constitutes the supporting frame of the machine which is provided with the integral standards 2. This frame supports the mold-box in which the cement blocks are formed. The mold-box is rectangular in form and comprises a back plate 5, which is mounted in a fixed manner to the standards 2 of the supporting frame 1. The opposite or front side of the mold cement Y buildingV comprises the plate 6 which is pivotally secured to the support-ing frame 1, at 7. The iioor of the mold-box comprises the plate 8 which isnotohed at the ends to form ears 9 which engage -the slots 9a in the end plate 10. Thev ends of the mold-box are formed of the plates 10, and'these plates are pivotally secured at 11 to the front plate 6. These end plates 10 are also provided with the slots 9a'to receive the ears 9 on the bottom plate 8, and it will be seen that by the several connections the front-plate 6, bottom plate 8 and end plates l0 may be simultaneouslyl swung on the pivots 7 to turn the finished block. The front-plate 6, bottom plate 8 and the end plates 10 are held in assembled relation with the back plate 5, as during the molding of the blocks, by means of the pawls 15 which are pivotally mounted on the end plates 10 and engage the hooks 16 secured to the back plate 5.

In the manufacture of cement blocks for building purposes it is the practice tio form such blocks with one or more openings, eX tending through the blocks, which openings are formed by means of one or more movably actuated cores which are operated in various ways, the common practice being to move them in a horizontal plane into and out of the molds. As the lower portion of the block, Vin these machines, is first formed by partially -lling the molds up and to the point of entrance of the cores, and as the work is generally carried forwardwith haste, the workmen are apt to place too much cement into the molds so that the movement of the incoming cores is interfered with. To remedy this defect I provide the core 20 with means to permit it to be elevated above the cement when entering the mold. This peculiar, movement of the core is accomplished by means of the rocker-arm 25 and the lever 32. The core 20 is provided with the rigid guide-rail or tail-piece 21 which eX- tends rearwardly, and to prevent lateral movement the tail-piece passes between the two uprights 23. The core 20 is moved into the mold by means of the rocker-arm 25, which is secured to the rock shaft 27, the latter being movably mounted in the supporting frame 1. The arm 25 is so shaped that the portion in the rear of the shaft 27 eX- tends upwardly and rearwardly of the core 20, and connection is made with the latter by means of the link 28, which connection will admit of a different movement of the wardly until the end A drops off of the two parts. The remaining portion of the arm 25 extends forward to the front of the machine where it is provided with the footplate 8O upon which the operator places his foot. It will be seen that as the forward end of the arm Q5 is depressed the core Q0 is forced to travel into the mold.

The machine is also provided, as before stated, with the core elevating lever 32 which is pivoted to the frame l at This lever extends upwardly with its upper end terminating slightly above the lower edge of the pathtraveled by the core. The lever is normally held against the back edge of the mold by means of the spring 85. See Figs. 3 and 4. lith the core 20 lying in normal horizontal position within the mold, the core will'be withdrawn from the mold in a horizontal plane by elevating the forward end of the rocker-arm 25. As the core starts outwardly from the mold the end A will engage the edge of the lever 32 near the top, and force said lever to move backwardly until the swinging ofthe arm, caused by its pivotal mounting, moves or carries the upper end out of the horizontal plane or path traveled by the core, at which time the upper end of the lever will move in under and bear against the under surface of the core. Thus, when the rocker-arm 25 is again depressed, causing the core to be moved into the mold, which movement also moves the core more perpendicularly over the pivotal connection 33 of the lever 32, and as the latter is somewhat longer than the l distance between said pivot and the plane in which the core travels the latter, as a matter of course, will be forced upwardly above the normal plane and be carried by said lever 32 until the movement of the latter is arrested by engaging the edge of the mold. Further depression of the rocker-arm 25 causes the core to continue to move in` u per end of the lever 32; the end A of tllie core, during the operation, being held below the plane of the opposite end of the core by reason of the engagement of the tailpiece 2l with the pin 24 which passes transversely through the uprights Q3.

The rear plate 5 of the mold-box is provided with an aperture or core-hole 40 to permit the core 2O to move into and out of the mold, and since the core is elevated when entering the mold, and since the back plate must lit snugly around the core when the latter is lying in normal operating position so as to impart a smooth surface to the block, provision must be made to allow of this irregular travel of the core. This is accomplished by means of a gate 41 which is formed by separating that portion of the back plate 5 above the core-hole 40. The gate 4l is hinged to the main body of the back plate by means of the hinges 42. Then the core is elevated the gate swings inwardly at the bottom (as shown in Fig. 3) and said gate returns to normal position when the core iinally moves in its normal horizontal position within the mold, as shown in Fig. 4. lith the core now in operating position the unlilled or remaining portion of the mold is lilled to complete the block. After the block is completed the lirst operation consists in elevating the arm 25 which causes the core 20 to be removed from the mold in a horizontal plane. After the core has been removed from the mold the pawls l5 are unhooked from the catches 11.6 which releases the front-plate (3, bottom plate 8 and end plates l0, thus allowing the mold to turn over and rest upon the horizontal brackets 45 of the supporting frame where it can be opened to free the linished block. The mold-box is also provided with the pallet-board 50 which is inserted into the box and stands vertically alongside the front-plate 6. It will be noted that when the linished block is turned over on its side it will rest upon the pallet-board, the latter forming a supporting base to enable the new block to be removed from the machine.

Having thus fully described my said invention, what I desire to secure by Letters Patent, is-

l. A machine of the above specified class comprising the supporting frame, a mold box supported by said frame, a movable core adapted to be laterally moved into said mold box, means adapted to move said core into the mold box, and means adapted to move said core into an inclined position with relation to the horizontal during said inward movement into the box mold.

2. A machine of the above specified class comprising the supporting frame, a mold box supported by said frame, a. movable core adapted to be laterally moved into said mold box, means adapted to be moved into said mold box, means adapted to prevent lateral movement of the core during said inward movement, and means adapted to move said core into an inclined position with relation to the horizontal during said inward movement into the box mold.

3. A machine of the above specified class comprising the supporting frame, a mold box supported by said frame, a movable core adapted to be moved into said mold box, means for moving said core into the mold box, means adapted to elevate said core above its normal path of travel during said inward movement, and means arranged in said mold box to permit said core to be elevated.

4. A machine of the above specified class comprising the supporting frame, a mold box comprising the back-plate rigidly ixcd to the supporting frame, a front plate pivotally secured to said supporting frame, end

plates pivotally secured to said front plate and provided With slots, a bottom plate adapted to engage the slots and be carried by said end plates, means for securing the front and end plates to the rear plate, a movable core adapted to be moved into the mold box, means for moving said core into the mold box, means adapted to elevate said coreV during said inward travel, and means arranged in said mold box to permit said core to be elevated.

5. A machine of the above specified class comprising the supporting frame, a mold box pivotally mounted on said frame, a

CHARLES EDGAR PHILLIPS.

Witnesses:

EVERETT L. DEUPREU, JAY A.. EGBERT. v

Images