US2457996A - Rodding attachment for plastic block machines - Google Patents

Description

Jan. 4, 1949. 'F GEORGE 2,457,996

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RODDING'vATTACHMENT FOR PLASTIC BLOCK MACHINES l Filed April 29, 194e 2 sheets-sheet 14 INVNTOR.

FRANKGGEORGE Jan. 4, 1949.

F. c. GEORGE RODDING ATTACHMENT FOR PLASTIC BLOCK MACHINES Filed-April 29, 1946 2 Sheets-Sheet 2 INVENTOR.

FRANK C.GEORGE BY i WV Patented Jan. 4, i949 easiest. y I l nominee.,lirfrneniuliirr.ron Ptasrro `BLQCK` l Frank CQ Georgina Orlando, Fla., assignor, by`

-fmesneeassiznmentpto F. C. George Machine Company; Orlando, Flai, a lcorporation. otr.`

Florida `implication April 29,wiaisenr-Ne;stai-1e. y

. rtclaims.

This inventionis concernedlwithfthe provision of a simple practicalwpressure attachment for plasticblock machines, :for usein the settlin nand compacting` of the plastic intlieblock mol f1 `Broadly itis anobject ofithisiinvention tofpro- I vide a pressure attachment for plastic block machines of the type which consists generally of a tubular frame member rigidly attachable in a vertical position to the block machine, oppositely disposed and spaced bracket members vertically slidable upon the upright portions of said frame, a pressure redding foot interposing said vertical bracket members and rigidly suspended from a bracket spacing rod, and leverage means` arranged in such manner as to vertically actuate said bracket and pressure foot carried thereby for contact of said foot with the plastic in the mold and I to exert leverage upon said foot for submitting a cutting pressure upon the plastic in the mold `box to shatter air-pockets and the like in the plastic thereby aiding densication of the material comprising the blocks, and hoisting means for releasing said pressure foot from the mold when pressure thereon is released.

This invention resides substantially in the combination, construction, arrangement and relative location of parts, all in accordance with the dis closure herein.

In the accompanying1 drawings,

Figure 1 is a partial front elevation of a plastic block machine and illustrating an adaptation of my invention thereto.

Figure 2 is an end elevation thereof.

Figure 3 is a partial section illustrating myl invention during a pressing operation.

Figure 4 is a plan View with the block machine omitted and the hand lever shown in dash lines for clearness of illustration.

The true nature and manner of use oi a device in accordance with this machine will be best understood by a detailed description of the form thereof shown in the drawings in an illustrative sense.

Now referring more particularly to the drawings A designates generally a plastic block machine having a mold box with cores therein, a plastic container or hopper, and a pan for deposit from the hopper of plastic and delivery of same to the mold box, which may be of a conventional make, preferably ci a type wherein, during operation thereof, there is a vibrating action in the 'mold for settling and compacting the plastic, however, this is not to be considered as a limitation as the function of this device is of extreme value in combination with a machine wherein both the (Ca2-sqrt) I Vso 1 .i I lmoldibdx and. coresiare ed;A `Formingm aapart of thestructure ofiitlilsy invention `is` a tubular frame 2 having..` parallel spacediuprights andi a spacing fhea'd' adapted'ttoibe disposed Ivertically to andi rig-icliyi engaged with I the 'block machine I at opposite sides thereof as indicated in the drawings or such other means as the type of machine to. which attachment is made demands, and centered to the mold box to assure entry of the pressure foot therein.

One purpose of said fra-meis to provide a guide for the vertical raising or lowering of the pressure foot which comprises one or a series of units such as designated by 3, of any desirable shape such as square, rectangular, or round, and if used in a mold box having a core as illustrated in the drawings and herein described, same is holloWed to render` it circumambient to the core and for spacing from the core and inner vertical faces oi the core box to permit for cutting of same into the plastic in the mold box to shatter air pockets or the like, during downward pressure thereof said units being horizontally carried `at the lowermost end of the spindles 4 and rigidly fixed thereto, upper ends oi said spindles being in rigid engagement with a horizontal frame "5 which is in turn carried by a bracket member comprising vertical rods 6 disposed parallel with and to the rear ofthe upright members ,of the frame 7'. and spaced-by transverse rod 1; which carries horizontal frame 5 laterally thereto `and head andbase members 8 and 9 respectively fixedly engaged upon opposite ends of the rods 6 and collaring the frame upright members for guided slidable engagement of the bracket` therewith.

Lever actuating means for the device is provided by hand levers I0 having eiectual pivotal points, for example, as shown at I I, and extended therefrom to the front of the machine with points of fulcrum upon rollers I2 which have bearing upon the rod 'I. Although two levers are: shown and described this is not to be considered as a limitation as the actual value of the extra lever is in the provision of even distribution of leverage pressure.

Observation of the drawings will teach that there is formed on the under edge of the hand lever a hook member I4 for contact with the under surface of the rollers I2. There are times when a unit'I 3 will become momentarily lodged in the plastic during a pressing operation and to such extent that the hoisting mechanism in the form of a counterweight I5; which will ordinarily hoist the pressing mechanism when pressure thereon is released; is unable to properly function, under such condition the hand levers are raised and thru contact of said hook member I4 with the roller I2 the pressing mechanism is urged upward releasing the pressing unit and allowing the hoisting mechanism to perform its normal 5 functiom l 1; ;f l ,v 5 Fromtrie.,above` description it will-be apparent to those skilled in theiart that the details of construction illustrated herein may readily be.v

varied Without departure from the novel subject matter herein disclosed. I `do not therefore desire to be limited by the disclosure but rather f by the claims granted me. n K Vy E What is claimed is:

1. A rodding attachment forQ-a .plastic ,mold bracket is raised..

machine having a settling and compacting mold supported lon a base, vertical rods in opposite sides of the base, a rodding foot, having a' cutting edge, movable toward and away from thev-mold,

a movable support carrying the foot and a runner 20 bracket on the support arranged to slide on the vertical rods forguiding it in a vertical pat toward and away from thelmold. z

2. A` rodding attachment for a plastic mol :pivoted for vertical movements and riding upon the roller to eiflectpressure on the bracket during the* lovvkeringI ofthe latter, and a track extension onf the"lk lever beneath the roller for its travel Ithereor ,1, duringthev raising of the bracket and 'exertingl-pressurevlon the roller when the said FRANK C'. GEORGE.

T REFERENCES CITED '-Thef-following references are of record in the le `of this patent:

UNITED STATES PATENTS =l\lu mbery ,l vName 1 `Date 1,211,842 Hart 11.-. Jan. 9, 1917 machine havinga settlingand compacting mold 25 1,937,028, Lux et al, 1 n Nov.28,f\1933

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