US447804A - Frederick j - Google Patents

Description

UNITED STATES PAThNr OFFICE. l

GONNEeirIcU-T.V

SPECIFICATION forming part of Letters .Patent No. 447,804, dated Merch 10, 1891.` I Application filed December 31, 1890. Serial 110,376,408. (No model.) u

To al? whom it may concer/1;:

lle it known that we, FREDERICK Ji WOOS- TER and ROLLA i. ANDRUS, citizens of the United-States, residing at lVaterbury, in the county of New iHaven and State of Connecticut, have invented certain new and nsefnl mprovemeuts 1n Racks for Holding Molds; d we do'herebydeclare the following to be a full, clear', and exact description of the invention, such as will enable others skilled in the avt to which it appertans to make and use the same.

This invention relates to certain novel and useful improvements in apparatus for casting brass,.copper, and other metals, and has for liaws, air-holes, and 'similar imperfections. It is our design that the mold during the castlngp'rocess shall be firmly held means for attachment by which the mold may be firmly held upon the support provided for it.

iVith the -ends just' setforth in view our invention consists in the novel form of moldholding rack herein shown and described, in the means foroperating the movable portion ot' the rack, in the devices for securing the molds to said rack, and tails of construction and nations of elements presently to be described, and then recited in the claims.,

In order that those skilled in the art to which our invention appcrtainsmay fully understand its construction and method of opera tion, -we will describe the same in detail, reference being had to the accompanying drawf ings and the numerals of reference marked '-thereon, which-form a part of this specification;

Figure 1 is an end elevation showing the 'frame in the act of rising to its vertical posi# i generally in the dethe several combi-' ready for pouring; Fig. 3, a front elevation;

Fig; 4, a rear elevation; Fig.- 5, a detail transverse section throughone of the molds; Fig.' 55

6, a perspective of one of the bands, and Fig. 7 a detail section of one of the feeders.

The base portion of our deviceconsists of a fixed frame, which we prefer; to construct of two end standards 1, whose feet 2 may be bolted or otherwise firmly secured to the floor. These frames we secure together b twoor more horizontal hraeerods- 3, and eac 1 frame has a stop of some description-as, for instance, the outward projection 4. Hinged upon one of the brace-rods 3 is a rack'adapted to support such numberot molds'r-.as may be found eonvenient--say fromf oneto twelve.

This rack consists ot'bars 5, having rods o bars 6 at right angles thereto, and an outwardly-projecting shelf 7, on which the lower ends of the molds may rest. At each end this rack is connected to the fixed and immovable frames or to the :upper bracerod, as shown in thedrawings, by means of toggle- levers 8 and 9, the latter fulcrumed on the base-rod and having anoperatinghandle. Itis desirable 'that some means should be provided for locking the mold in` the position shown at Fig. 2, and such a device isshown as consisting of a-swinging hook l0, adapted to engage with the stud on the lever 9. Any system of letion; Fig. 2, a similar view showing the Vmold vers competent to operate the rack and molds' may be substituted for the combination shown without violating the essentials of ourinven- 85 l tion. in connection with this rack,' wey 'prefer to employ molds capable of eastingtwo or more slabs, rods,'or bars at once. Such a mold 1s shown in section at Fig. 5 as consisting of a 9o i" trough-shaped back portion 11 and acoverportion 12, whose edges fit closely within the parts 11, and which is provided with an inwardlyprojecting partition or partitions 13, according as the mold is designed to cast two or more bars. The parts of the mold are fastened together and also secured to the rack by means of bands 14, each of which is adapted to rest astride one of the molds and has at its rear end a pair of hooks 15 at rightangles tothe While any ordinary-moldmay be used' 1 body of the band, which latter' are'adapted to engage with the bars 6. -A edges x1`6`are I paratory to casting.

1. The combination, iwitlrtlie' molds; et thethen drive'n in between the mold-cover and the bands, thereby firinly securing the parts of the mold together and securing the mold to the rack. The lower band may be of the ordinary type, the upper band being snfficicnt to hold the moldin place on the rack'.

v .ln the operation of our invention the rack: is first dropped backward against the stops t by means ot' the toggle-jointed` levers...` 'lli'e backs of the molds are then placed upon the rack, their lower ends supported by the shelf 7, and they are then dressed,ns;, is `usual, pre- The covers are then pnt v on, the hook-bearing bands placed overeach meld, with their hooks engaging tl1e,l'ack`,and the wedges driven tightly between the nioldi aces and the bands. i his helper, by the operation et the levers 9,- raisetlfe rack and the molds. tothe positionf shown at Fig. 2. The metal may be then poured from the erncibles into the molds --in the usual manner, bntpreferably bya feeder? 17, as shown at Fig.7, .whereby the metal is delivered centrally and' is less apt to run down the sides of the me' When the metal has set, et the levers, is dropped backward against the stops l. `'lhen by .removing Ihewedgcs and bands the mold-covers may be taken off and-the slabs exposed to tieztir for cooling. It' the covers wero removed while tii''fmolds., were in vertical position, the bars'wonld be likely to fallout. v

In this our invention we'do not wish to be confined to the preeisedetais of construction herein shown invention resting in a. rack for' holding the molds and in means for holding said rack eitherin an inclined position for dressing, ttc., or in a ve'rticelpositionfor. pouring.-

i standards toiwhieli thelowcrend of. said rack 'A is hinged, and the li 2. The combination, w

hinged rack for the support of said molds,

45 [ting-levers interposed between the standards and the rack, substantially-as describedr ith the standards, of the rack adapted to support the molds and hinged to said-standards, and toggle-levers -set-,nred-between the''raek and standards,4 whereby the formexniay be .swung forward and upward relatively to thelatter and there retained, substantially as set'frth.

3. The combination, with the= standards, of Y the hinged rack adapted to support the molds, g

Then the caster-:and o dand become pa tinlly chilled than'if the mold were inclined. f Atlzie rack, by means and described, the gist efour levers interposed betweenthe raekitjnd-lstandf' ards', whereby the former mayl be`"s\vtlng 11p- |ward and fo1.vard-relatively to thelattenand a locking device 'for holding thef l'ack and molds in theirvertieal position,'snbstantially `as set forth. l

4. 'lhe'combina-tion, \vitlrt liegvm'ol ds, of the Ehinged rack provided with a slielf,l thestand ards to which the lower end offsaid rack is -'hinged, and the levers interpose between Vthe standards and the rack, the ,whole 'ar-` ranged snbstantially as described. g.

5. The eombination,\\'ith the molds, of the ,supportingmele theI blinds engaging the molds and', having'means of connection with' the rack, and wedges adapted tol tighten the grasp ot the bands, substantially as described.

'6. The combination, with the hinged rack, of the molds, the bands adapted to embrace' the molds and having hooksfor engagement with the raelgjandineans for tightening' tlie grasp of thebandssubstnntially es described;

In testimony whereof we affix en 'rsi'gnatu'res- 8'o

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