US703647A

US703647A - Molding-machine.

Info

Publication number: US703647A
Application number: US5002701A
Authority: US
Inventors: Benjamin Alvey Franklin
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-03-06
Filing date: 1901-03-06
Publication date: 1902-07-01
Anticipated expiration: 1919-07-01

Description

I Patented July I, I902. B. A. FRANKLIN. MOLDING MACHINE.

(Application filed Mar. 6, 1901.)

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Patented July I, I902.

B. A. FRANKLIN.

MOLDING MACHINE.

(Application filed Mar. 6, 1901.)

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(No Model.)

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"0. 703,647. I Patented'luly' l, I902.

B. A. FRANKLIN.

MOLDING IACIHNE.

(Application filed Mar. 6, 1901.)

3 Sheets-Sheet 3.

(No Model.)

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UNITED STATES PATENT OFFICE.

BENJAMIN ALVEY FRANKLIN, OF PHILADELPHIA, PENNSYLVANIA.

MOLDING-MACHINE.

SPECIFICATION forming part Of Letters Patent NO. 703,647, dated. July 1, 1902.

Application filed March 6, 1901. Serial No. 50,027- (No model) To all'whom it 77%03/0072106771.

Be it known that I, BENJAMIN ALVEY FRANKLIN, a citizen of the United States, residing in the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Molding-Machines, of which the following is a full, clear, and exact-description, reference being had to the accompanying drawings, forming a part of this specification. I

This invention relates to moldin g-machines, my object herein being to provide a simple and efficient apparatus whereby molds or parts of molds for the casting of either light or heavy objects may be produced.

To this end my invention comprises in such an apparatus various novel features of construction and organization of parts, which will be hereinafter fully set forth and claimed.

In the drawings, Figure 1 is a plan of a machine embodying my invention. Fig. 2 is a side elevation thereof with one side of the track removed. Fig. 3 is a transverse vertical section as on the line 3 3 of Fig. 1. Fig. 4 is an elevation of the machine as viewed at right angles to Fig. 2, showing the-relative positions of the parts just preceding'the'in-- version of the mold. Fig. 5 is a view show ing the position of the parts preparatory to drawing the pattern, the carriers being represented in position to support the flask. Fig. 6 is a transversesection through the-pattern and former, showing their relative positions after'the facing sand hasbeen introduced and compacted. Fig. 7 is a side elevation of a portion of the trackway, the carriers thereon, and'the flask mounted on said carriers. Fig. 8 is an end view of one of the flask-carriers, showing in section the trackrail therefor. Fig. 9 is a transverse sectional view of the completed mold.

A represents a bed-plate upon which is I supported a predetermined pattern B for the reception of the sand to betherein compacted and shaped, and 0 represents a verticallymovable rammer adapted to pack the sand in the matrix b of the pattern. This rammer in the present instance comprises a'member or former 1, corresponding with such matrix and being detachably secured, by bolts 2, for instance, to the under side of a plate 3 which is rotatably mounted, by trunnions 4, for exportion of the member 1 of the rammer.

ample, in vertically-movable rods 5. suitable mechanism may be employed to operate these rods. In the construction illustrated in the drawings the rods constitute the piston-rods of vertical liftcylinders 6, of either the pneumatic or hydraulic type. Inasmuch as these cylinders are of well-known construction and operation no description thereof is deemed necessary.

The rammer, as I have termed it, is temporarily locked in horizontal position by pins 7, that are inserted in holes in thecontiguous portions of the plate and rods, these holes being so relatively disposed that the rammer may be locked in place with either side lowermost. One of the trunnions of the rammerplate is, preferably provided with a handle 8 to facilitate the operation of turning the rammer.

In the plate 3 are formed openings 0, which follow, preferably, the outline of the adjacent On the respective ends of the plate,about the middle thereof, are pivoted arms 9, which may be swung upon the plate or be allowed to depend therefrom. The free ends of these arms are perforated, as at 10, for engagement with centrally-disposed pivot-studs ,11 on the respective ends of the pattern, as and for a purpose hereinafter described. Pivoted on the respective ends of the said plate 3 at or near the corners thereof,are arms 12, which similarly to the arms9 maybe swung upon or suspended from the'plate. The free extremities of the arms 12 are hook-shaped for engagement with suitably-located sockets 13 in the ends of the pattern and also with the recessed sides of the flask D, as will presently appear. This flask is imposed on the pattern B preparatory to the formation of the mold-section.- Uponthe completion of said section the flask is removed therewith for use either separately or in conjunction with another flask havin g a complementary mold-section.

As a simple and efficient means to handle the flask I provide a novel construction of carriers and trackway whereby the flask may be run upon and oif the pattern as desired. The trackway comprises parallel rails 14:, extending from a suitable point toward and across the bed-plate on which the pattern is supported, that portion of the trackway adjacent Any to the bed-plate comprising laterally-movable railsections 15, slidingly supported on uprights 16.

In the present instance four carriers E for the flask are mounted to run on the trackway, two carriers being on each rail adjacent the respective ends of the flask. Each of the carriers comprises a frame 17, hearing at each end thereof a pair of wheels 18, that take against the opposing rail of the trackway and bearing also a vertically-movable screw 19, provided with an adjustingnut 20. This screw is furnished at its upper end with a recess or seat 21 for the reception of a laterallyextending stud 22 on the flask, the latter being provided on each side with two of these studs for engagement with the respective carriers.

The foregoing is a description of one form of my apparatus. Its operation is as follows: At the outset the rammer is elevated, with the member 1 thereof turned upward and the hooks 12 depending, and a pattern B, having the requisite shape or matrix therein, is located upon the bed-plate. The rail-sections 15 are arranged in line with the main rails of the trackway, and the flask D is mounted upon the respective carriers E and run thereby upon the trackway to lie directly above the pattern. The rammer is then lowered and the hooks 12 engaged with the sides of the flask. This done the rammer is slightly raised to lift the flask from the carriers. The rail-sections, with the carriers thereon, are then moved laterally awayfrom the pattern, whereupon the flask is lowered upon the pattern and secured thereto by the usual dogs. Next the hooks are disengaged from the flask and the rammer raised and inverted. The parts then occupy the positions shown in Fig. 2. The rammer is then lowered so that the member 1 thereof enters the matrix of the pattern, while the plate 3 lies slightly above the flask, an intervening space 01, Fig. 6, being left between the member and the pattern. Facing-sand is then introduced into this space by way of the openings cin the plate 3 This being done the rammer is slightly lowered, so as to pack the facing-sand in the pattern. The rammer is then raised entirely above the flask and a quantity of backing-sand introduced into the pattern. This sand is rammed by the part 1 of rammer 0, another quantity thereof is introduced and rammed, and the operation repeated until the pattern and the flask have been filled. Just before the last stroke of the rammer a plate F is placed upon the sand rising from the flask, which plate during such stroke efiects the consolidation of the sand within the flask. Plate F is then locked to the flask by the usual dogs, following which the rammer is raised and inverted. The arms 9 are then engaged with the studs 11 on the pattern, as shown in Fig. 4E, and the rammer is raised, thus lifting the pattern and its appurtenances. The pattern, flask, the. during their elevation are inverted about the pivots 11 by gravity, whereupon the pattern, flask, &c., are lowered upon the bedplate. This done the arms 9 are freed from the studs and thrown upward. The hooks 12 are then engaged with the sockets 13 in the pattern, and the latter, with its connections, is bodily raised until the lateral studs 22 on the flask are slightly above the carriers. Then the track-sections are moved into line with the main track, and the carriers E are brought below the respective studs 22 of the flask, as shown in Fig. 5. The screws 19 of the carriers are adjusted to engage these studs, and inasmuch as the pattern is suspended in horizontal position by the depending hooks it follows that when the screws are engaged with the studs on the flask, as stated, the flask will be supported therebyin a horizontal position. The dogs which connect the pattern with the flask are then removed and the rammer is raised, thus drawing the pattern in perfect alinement from the sand. This completes the operation. The flask, with the mold or mold-section therein, is then removed from the apparatus by the carriers on the trackway.

The pattern and former will of course be changed from time to time as particular requirements of service may demand. As to the other elements of the apparatus it will be obvious that the same may be modified in various respects without departing from the fair spirit of the invention. I therefore do not limit myself to the specific details of construction herein shown and described; but

WVhat I claim is-- 1. In a molding-machine, the combination with a pattern, of a rammer, means for effecting a relative movement between the rammer and the pattern, and devices for connecting the rammer and the pattern when the rammer is moved toward said pattern.

2. In a molding-machine, the combination with a pattern, of a rammer, means for effecting a relative movement between the rammer and the pattern, and devices carried by the rammer for engaging the pattern.

3. In a molding-machine, the combination with a pattern, of a rammer havinga former complementary with the shape of the pattern, means for eifeeting a relative movement between the rammer and the pattern, and devices for connecting the rammer and the pattern when the rammer is moved toward said pattern.

4:. In a molding-machine, the combination with a pattern, of a rammer having a former complementary with the shape of the pattern, means for effecting a relative movement between the rammer and the pattern, and connecting devices carried by the rammer for engaging the pattern.

5. In a molding-machine, the combination with a pattern, of a rammer comprising a plate having a former projecting from one of its faces, means for effecting a relative movement between the rammer and the pattern,

from one of its faces, means for effecting a relative movement between the rammer and the pattern, means carried by said plate and V forming bearings for said pattern, and means for rotating said plate to permit rotation of the pattern.

8. In a molding-machine, the combination with the pattern-support, of'a rotatable rammer, and means for eifecting a relative move ment between the rammer and the patternsupport.

9. In a molding-machine, the combination with the pattern-support, of a rotatable ram mer, means for effecting a relative movement between the rammer and the pattern-support, and movable means whereby the pattern may be pivotally suspended from the rammer.

10. In a molding-machine, the combination with the pattern-support, of a rammer, means for effecting a relative movement between the rammer and the pattern-support, and suspension devices carried by said rammer whereby the pattern may be pivotally suspended from the rammer.

11. In a molding-machine,the combination with the pattern-support, of a rotatable rammer, means for effecting'a relative movement between the rammer and the pattern-support, and means whereby the pattern may be connected with and disconnected from the rammer. a

12. In a molding-machine, the combination with the pattern and the flask thereon,'of a rammer, means for effecting a'relative movement between the rammer and the pattern,

nected with and disconnected from the rammer.

13. In combination a pattern, a flask adapted to be mounted thereon, and a rammer com prising a plate and former, means depending from the side of the plate providing turning supports for said pattern, and devices depending from the corners of the plate for support ing either said flask or said pattern.

14. In a molding-machine, the combination with a pattern, of a rammercomprising aplate having a former projecting from one of its faces, said plate being provided with a series of filling-openings arranged around the form er and discharging into the pattern when the rammer is positioned relatively thereto.

15. In a molding-machine, the combination with a pattern, a rammer, and means for ef* fecting a relative movement between said pattern and rammer, of a trackway arranged adjacent to the pattern and rammer, carriers mounted thereon and provided with vertically-adjustable supports, and a flask adapted to be engaged by said supports and transported by the carriers to and from the pattern.

16. In a molding-machine, the combination with a pattern, a rammer, and means for effecting a relative movement between said pattorn and rammer, of a trackway arranged adjacent to the pattern and rammer and provided with laterally-movable rail-sections adjacent to the pattern, carriers mounted on said trackway and provided with verticallyadjustable supports, and a flask adapted to be engaged by said supports and transported by the carriers to and from the pattern.

In testimony whereof I have hereunto affiXed my signature in the presence of two subscribing witnesses.

BENJAMIN ALVEY FRANKLIN.

Witnesses:

ANDREW V. GRoUrE, JOHN R. NOLAN.