US1157840A

US1157840A - Casting apparatus.

Info

Publication number: US1157840A
Application number: US87650714A
Authority: US
Inventors: Frederick J Bradley
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-12-10
Filing date: 1914-12-10
Publication date: 1915-10-26
Anticipated expiration: 1932-10-26

Description

F. J. BRADLEY.

CASTING APPARATUS.

APPLICATION FILED DEC. 10, 1914.

1,1518%. Patented 0ct.26,1915.

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F. J. BRADLEY.

CASTING APPARATUS.

APPLICATION FILED DEC. 10. 1914.

Llfi'afifl, Patented 001;. 26, 1915.

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COLUMBIA PLANoflRAm-l co., WASHINGTON D c TTEM @TATFb FATEN FREDERICK J. BRADLEY, OF TACOMA, WASHINGTON.

CASTING APPARATUS.

Specification of Letters Eatent.

Patented (Pet. 26, i915.

Application filed December 10, 1914. Serial No. 876,507.

My invention relates to apparatus intended for use as a mold, for forming the cast portion of that part of a corner lock in. a metal bed, which is secured upon the post.

The object of my invention is to provide an apparatus which will do this work better and which shall be more convenient in use, than devices formerly used for this purpose.

My invention comprises the parts and combinations of parts which are hereinafter described and are particularly defined in the claims.

Figure 1 is an elevation showing a post of an iron bed secured upon a rack for casting thereon its part of the corner lock, the con necting members of bedstead and rack being in section. Fig. 2 is a vertical section through the molding device and the bed post, the cast having been made. Fig. 3 shows, in perspective, the part of the mold which enters the post. Fig. 4: is a top view of the mold used in casting the foot on the lower end of the post. Fig. 5 is a section on the line 55 of Fig. 2, showing the parts of the mold in close position, or ready for casting, portions of the upper members being broken away to show interior constructions. Fig. 6 shows the outer parts of the mold, from above, in open position. Fig. 7 is a plan and partial horizontal section through the completed lock. Fig. 8 is a section on the line 88 of Fig. 2. Fig. 9 is asection on the line 9-9 of Fig. 2.

The purpose of the device herein shown is to mold the casting which serves to anchor the ends of the cross rail to the bed posts and to form one part of the corner locking device. The shape of the corner lock illustrated is that of a standard type in which from the foot of the post to a little beyond the point where the corner fastening lug is to be cast thereon. When placed in position for casting, the post is in inverted position, its lower or foot end being uppermost. Close to its inner end, the'bar 3 has a recess formed in one side, of the shape which it is desired to give the retaining lug of the corner lock casting. As herein shown this has been. made by cutting a transverse groove 6 in the bar 3 of a size greater than that of the hole 1 in the post. The shape given this'has a flat bottom surface 6 and inclined sides 6", although other forms would serve the purpose.

From a point 8, well removed from the inner end of the bar and at the side opposite that of the notch or groove 6, this side of the bar is tapered toward the end, the tapering surface being of such form as will permit the original axis of the bar to be placed at such an angle to the axis of the post, as will throw the groove or recess 6, back from the inner face of the post enough to permit it to clear the retaining lug 2, after casting.

To permit placing the bar 3 in this i11 clined position, the side containing the molding groove 6 is cut away upon a taper, from just above this groove to a point which approximates the foot end of the post 1, when the bar 3 is in position for casting. This tapering cut is at its maximum at its outer end. These tapering cuts permit of the bar 3 assuming the inclined position indicated by the dotted lines in Fig. 2, in assuming which position it is freed from the retaining lug 2 and may be withdrawn.

The projecting end, portion 3", which is cylindrical, is provided with a positioning pin 10, adapted to seat in a cut-out 10 of upper sectional mold 5, and also a handle 11 for removing form 3 from post 1 subsequent to the molding operation, said mold 5 encircling portion 3 of the form and clamping about the post 1 to retain the form in position. It will therefore be noted that mold 5 constitutes a means for securing the mold form 3 in its operative position.

The lower sectional mold i comprises a fixed section formed of spaced supports or plates 12, the latter being secured to a suit able support 13 by stud bolts 12. Interposed between spaced supports 12 and fixed thereto by bolts 1 L is a positioning member 14: having a seat 1% for a core element 15, the latter having a tapered projection 15 to form a tapered slot in bed corner fastening member 2 for the reception of one terminal of side rail of bed. Disposed for lateral movement between spaced supports 12 are the movable sections .16 pivotally connected and adapted to close to form a mold for the bed corner fastener casting 2.

Hinge sections

16 and 16* are pivotally mounted between fixed supports 12, as at 17 and 17 while hinge section 16 is pivotally mounted on section 16, as at 17, and hinge section 16 is pivotally mounted on section 16, as at 17, each section having a mold face 18 adapted to be arranged in operative position when hinge sections are closed, as shown in Fig. 5. ,A taper pin 19 retains hinge sections in their closed relation.

The upper sectional mold 5 preferably consists of a fixed section 20 and a movable section 21, the latter being pivotally mounted 'onfixed section as by hinge pin 22, and both sections being provided with a mold face 23. Fixed section 20 is secured to a suitable support 21, as by stud bolts 20, and is further provided with a cut-out 10 for the reception of positioning pin 10 of mold form 3. Threaded in boss 20 of fixed section 20 is an angular pin 25, the angular portion 25 of the latter normally bearing on a cam face 21 of movable section 21, when said sections are in position, thereby serving tosecure or clamp the same snugly around post 1, at which time mold face 23 of these sections is concentric with the post.

In operation, assuming the

sectional molds

4 and 5 are open, the core element 15 is placedin seat 1 E of positioning member 14,

hinge sections

16 and 16 are then swung inwardly to their closed position to retain coreelement 15 in its seat 1 1". The end rail 35, of the bed, which is to be cast integrally with the corner fastening member 2 is next positioned in seat 35 of hinge' section 16'. Posts 1 are preferably the arms of inverted U-shaped forms constituting the head and foot members of a bed. When casting, the frame is adj ustably supported, as by bracket 30, to facilitate the'positioning of the opening 1' relative to the mold. Bracket 30 is 1 formed with a slot 31 through which passes a locking pin 32 threaded in a support 33, whereby it may be vertically adjusted. Molds 4L and 5 are then closed and bar 3 insorted in tubular post 1 with pin 10 of the form 3 seated in recess 10 of sectional mold 5, thereby bringing mold face 6 of bar 3 adjacent opening 1 of post 1. Gates 4' and 5 in

sectional molds

4 and 5 respectively, are provided for the pouring of the metal; subsequent to this, having allowed the metal to cool sufficiently, the molds are opened, and the frame removed, and core element 15 knocked or forced out of corner fastener casting. Bar 3 is next extracted by swinging same laterally on pivot edge 8 and raising it slightly, as shown in dot and dash lines (see Fig. 2) when the bar maybe readily removed. To facilitate opening of the lower sectional mold, pins 40 and 41 on

hinge sections

16 and 16 respectively are provided.

Frame members or supports, 13 and 24, carrying

sectional molds

4 and 5 respectively, and frame member 33 carrying bracket 30, are supported, as on post 36, member 24 being set out from post 36, as by a block 37 The molds 1- and 5 and the bar 3 which forms an inner mold, cooperate to secure correct operation of the parts. The upper mold 5 determines the exact location of the inner mold bar 3, by engagement of pin 10 on the bar with recess 10 of mold 5, and mold 4 cooperates with bar 3 to complete the mold for the corner locking block.

The foregoing detailed description has been given for clearness of understanding only, and no undue limitation is to be understood therefrom, but the appended claims are to be construed as broadly as is permissible in view of the prior art.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of America, 1s:

1. In an apparatus of the class described, a bar having a surface at one side of its inner end conforming to the inner surface of the bed post and a surface of like conformation upon its opposite side located nearer its outer end, the inner of said surfaces having a lug-forming recess, the remaining surfaces of that part of the bar which enters the post being cut away to permit its being rocked to clear it of the retaining lug after it has been cast, and a member securable upon the end of the post and having a definitely fixing engagement with the outer end of the bar.

2. In an apparatus of the class described, a bar having a surface at one side of its inner end conforming to the inner surface of the bed post and a surface of like conformation upon its opposite side located neared its outer end, the inner of said surfaces having a lug-forming recess, the remaining surfaces of that part of the bar which enters the post being cut away to permit its being rocked to clear it of the retaining lug after it has been cast, the outer end of said bar projecting from the post, a member and means for securing it in definite position in relation to the post, said member and the bar having registering parts which fix the position of the bar in the post.

3. In an apparatus of the class described, a bar having a surface at one side of its inner end conforming to the inner surface of the bed post and a surface of like conformation upon its opposite side located nearer its outer end, the inner of said surfaces having a lug-forming recess, the remaining surfaces of that part of the bar which enters the post being cut away to permit its being rocked to clear it of the retaining lug after it has been cast, the outer end of said bar projecting from the post and having a laterally projecting finger, a member adapted to be secured in definite position upon the post and having a recess for the reception of said finger.

at. In an apparatus of the class described, a bar having a surface at one side of its inner end conforming to the inner surface of the bed post and a surface of like conformation upon its opposite side located nearer its outer end, the inner of said surfaces having a lug-forming recess, the remainlng surfaces of that part of the bar which enters the post being cut away to permit its being rocked to clear it of the retaining lug after it has been cast, the outer end of said bar projecting from the post and having a laterally projecting finger, a two-part hinged clamp adapted to be secured to the foot end of the bed post, said clamp having a recess for the reception of said finger.

5. A casting apparatus for use in applying the cast footings and rail locking members to the posts of metal bedsteads, comprising a mold for exterior application to the post at the point Where the rail locking member is desired and to include a hole formed in said post, means for introducing molten metal within said mold, a bar insertible within the post and having a recess therein adapted to register with said hole in the post, said bar being cut away upon opposite sides to permit rocking to clear its inner recessed end of the lug cast in said recess, a member adapted to be secured upon the outer end of the post in fixed relation With the lug-receiving hole in the post, said member and the outer end of the bar having interlocking and registering engagement fixing the position of the inner end of the 6. A. casting apparatus for use in casting the footings and corner locking blocks upon metal bed posts, comprising a frame having frame supporting and locating members, a mold supported fromsaid frame and adapted to be clamped upon the bed post in position to form the corner locking block and to include a hole formed in the post, means for introducing molten metal within said mold, a bar insertible within the post and extending beyond said hole, said bar having a recess in its side face registering with said hole in the post, the surface of said bar being shaped to form close contact with the inner surface of the post about its hole, said bar having a bearing upon the inner surface of the post at the side opposite said hole at a point between said hole and the end of-the post and being cut away at opposite sides and toward opposite ends to permit rocking to retract the recess-containing surface to clear the retaining lug after casting therein, a clamping device carried by the frame and engaging the foot end of the bed post, said clamping device and the outer projecting end of the bar having complemental barregistering Darts ada ted to hold the bar in exact position.

Signed at Tacoma, Washington, this 17 day of November 1914.

FREDERICK J. BRADLEY.

Witnesses:

J. L. CARMAN, J. W. TIBBITs.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

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