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Publication numberUS700606 A
Publication typeGrant
Publication dateMay 20, 1902
Filing dateMay 14, 1900
Priority dateMay 14, 1900
Publication numberUS 700606 A, US 700606A, US-A-700606, US700606 A, US700606A
InventorsJohn S Barnes
Original AssigneeJohn S Barnes
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mold for collar-buttons.
US 700606 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

No. 700,606. Patented May 20, I902. J. S. BARNES. MOLD FOB COLLAR BUTTONS.

(Applies-thin filed May 14, 1900.)

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SPECIFICATION formingpart of Letters Patent No. 700,606, dated May 20, 1902.

My invention relates to improvements in molds for collar-buttons or other articles having an irregular outline; and it consists in providing a flask for holding the mold, which flask is in two parts, the drag being supported in an inclined position upon a rigid arm and the cope hinged to the drag at one end and provided with suitable clamps, and in providing molds forsaid flask fo'rmed'of longitudinal strips or bars, each barhaving a series of like depressions to form a mold for one 'part' of a collar-button, the adjacent bars' beingeach formed with a like series of depressions to form other parts of the button and bars longitudinally grooved to form gates and provided with lateral runners leading therefrom to conduct the molten metal into the molds proper; and its object is to provide a mold for casting a large number of small articles at one time,which is so constructed that it may be cheaply made and will readily release the articles when cast and to provide means for forcibly ejecting the articles from the molds when cast and also to provide certain other" new and useful features, hereinafter more fully described, and particularly pointed out in the claims, reference being had to-the accompanying drawings, in which Figure l is a plan view of the flask opened out and showing the inner faces of the mold. Fig. 2 is a side elevation of the flask when closed; Fig. 3, a section of the -flask and molds on the line 3 3 of Fig. 2. Fig. 4 is an enlarged detail showing a'portion of the moldsin-plan view. Fig. 5 is the same showing a mold for castingva modified form of button. Fig. 6 is-an enlarged sectionon the line 6 6 of Fig. 1 of the flask and mold when closed. Fig. 7 is a like section on the same line of the drag of the flask and its half of the mold, illustrating the manner in which the cast articles are ejected therefrom. Fig. Sis a perspective Serial No. 1 ,672. on model.)

view of a portionof the drag and its half of the mold.

Like characters refer to'like parts in all of the 'figures. A and A are the castings, forming the flask for holding the bars 1, 2, and 3, which form the molds, the part A being the upper removable part or cope, which is hinged to the part 'A or drag at Z. The base D, which may be bolted to the floor or other suitable foundation, is provided with an upwardly-extending curved arm D, the upper end of which is adj ustably secured to the back of the drag A of the flask, and said flask:is thereby rigidly supported in a position inclined from the perpendicular.

The cope A and drag A are each provided with alongitudinal rib G,'and at each side of this rib are laid the bars 1, 2,and 3, said bars being providedwith recesses or depressions and conjointly form the mold, the bars on the cope being the counterpart of those on the drag and when brought face to face by closing the flask form a complete mold for the reception of the molten metal. The bars 3 are provided with longitudinal semicircular grooves B, forming gates or conduits for the metal, and leading from-the gates B are the lateral grooves or runners c, which taper to a small opening at the edge of the bar. The bars 2 are each provided with a series of re cesses d at one side to form the mold for base "of the button, and leading from these recesses are the tapered recesses e, which form the shank of the button, and a corresponding series of recesses f is provided in each of the bars l'to form the head of the button. Each half of the mold is provided with four gateb'ars'3, the gates being closed at their lower ends and made flaring at their upper ends, the'upper end of the flask being alsobeveled to facilitate the pouring of the metal into the communicating with the recesses f in thejbars 1, one of which bars lies adjacent to each bar 2, and thus each gate 13 communicates with two rows of molds, and eight rows of buttons are formed at each operation. To hold these gates, and adjacent to each ofthe bars 3 are the bars 2, one at each side, with the recesses (Z in communication with the small openings" of the runnersc,the tapering recessesye each j bars forming the molds in place, clampingbars a are provided, whichform the outer sides of the cope and drag, and a' transverse opening is provided near the middle of these bars and also through the ribs G and moldbars, through which openings extend the rods d, said rods being secured at one end in one of the clamping-bars a and at their opposite ends screwthreaded and provided with a crank-handle I), having an internally-screwthreaded head to engage the outer surface of said clampingbar and force said bars a toward each other to clamp the molds."

On the back of the drag A are the lugs K, to which the curved clamping-arms F are pivoted at E, and on the cope A are the ribs F, adapted to be engaged by the clamping-screws G2 on the ends of the said arms F. To the lugs K are pivoted levers 5, each of which levers is provided with a transverse bar 8, extending across the flask and formed with sockets in which the outer ends of pins 4 are pivoted, said pins being extended through the drag A and provided on the inner ends with screw-threads to engage screw-threaded sockets in each of the bars 3. The opening in the bars 3, through which the rod 01 passes, is extended laterally, as shown in Fig. 3, to allow the said bars to be moved outward, so that their inner faces will be above the surface of the mold.

To insure perfect alinement of the two halves of the flask, pins 6 are provided on the cope, adapted to engage openings 7 in the bed of the flask, said pins and openings being in the ribs G near their ends.

The operation of my device is as follows: The parts being in the position shown in Fig. 2, with the clamping-screws G2 firmly pressing the halves of the flask together andthe cranks I) being turned to force and hold the bars of the mold firmlyin contact, the molten metal is poured into the upper open ends of the gates B, and from them it flows laterally through the runners 0 into the recesses formed in the bars 2 and 1 to form the buttons. When the metal has cooled suiflciently, the clamping screws G are released and the arms F turned back out of the way. The crank 12 is then turned to allow the mold-bars in the cope A to spread apart, thus releasing the metal inthat half of the mold, which half or cope is then removed by grasping the handle H and turning the cope on its pivot, leaving the metal all in the drag. To remove the buttons from the drag, the crank bis turned to allow the bars of the drag to move, loosening the buttons, and the levers 5 are depressed, thus forcing the pins 4 inward, which in turn move the bars 3 of the mold, projecting the face of each above the plane of the bars 1 and 2 and lifting the buttons from the molds, said buttons being still attached to the sprue, the sprue-bar lying in the gate 15. If it is desired to make some other form of button, the bars 1 and 2 may be removed and others put in their places having recesses differently formed, as is shown in Fig. 5,'a button having a round head being provided by changing the bar 2 only.

What I claim as my invention is 1. In a two-part mold consisting of duplicate halves, a central longitudinal bar in each half in which are-formed the gate and runners, bars in each half adjacent to said bar and having a series of recesses and grooves forming molds each connected with one of said runners, and means for clamping the 'two parts of the mold together.

2. In a two-part mold consisting of duplicate halves hinged together at one end, a series of sets of longitudinal mold-bars in each half, each set consisting of a central bar in which are formed a gate and runners, and bars at each side of said bar having a series of recesses forming molds, one opposite each of said runners, clamping-bars engaging the outer bars of each half of the mold, means for drawing said clamping-bars toward each other to clamp the mold-bars, and curved clamping-arms pivoted to one half of the mold and adapted to engage the other half to hold the faces of the mold in contact.

3. In a mold for irregular forms, a flask formed with a central longitudinal rib on the face of the cope portion thereof, and a corresponding rib on the drag; bars having recesses forming the molds, extending parallel with said ribs and at each side thereof; clamp ing-bars engaging the outer mold-bars and forming the sides of the cope and drag; rods secured to the clamping-bars at one side of said flask, extended through the mold-bars, the ribs, and the clamping-bars at the oppo= site side of the flask, and screw thread'ed at their opposite ends; and crank-handles hav-' ing internally=screW-threaded heads to re ceive the rods and engage the clamping-bar's.

4. In a two-part mold, a series of longitu dinal bars forming each half and provided with recesses forming the molds, and gate bars longitudinally grooved to form gates and grooved laterally to form runners, a twopart flask to receive and hold said mold and gate bars, and pins extending through'said flask and engaging said gate-bars to raise the same above the surface of the mold and eject the cast articles.

5. In a two-part mold, sets of longitudinal mold-bars forming each half of the mold, gatebars longitudinally grooved to form gates adjacent to each set of mold-bars, a two-part flask adapted .to receive said mold and gate bars, pins secured to the bottom of said gatebars and extending through openings in the drag of the flask, a bar having recesses to receive the outer end of said pins, extending transversely across the drag, and levers pivoted to the drag to actuate said bars.

6. In a two-part mold, a flask consisting of a drag portion, means for rigidly supporting said drag in a position inclined from the vertical, a cope portion hinged to the drag at its lower end, clamping-bars on the cope and drag forming the sides of the flask and provided with transverse openings, curved clamping-arms pivoted to the drag at one end and provided with clamping-screws at their opposite ends to engage ribs on the cope and hold the halves of the flask together, and a mold portion consisting of central longitudinal ribs provided with transverse openings, on the drag and cope, sets of bars at each side of said ribs consisting of a central gatebar longitudinally grooved to form a gate and provided with an elongated transverse opening, and mold-bars at each side thereof pro vided with transverse openings, rods secured at one end within the openings in said olamp-. ing-bars at one side of the flask and extended through the said openingsin said ribs, moldbars, elongated openings in said gate-bars and the said openings in the clamping-bars at the opposite side of said flask, crank-handles on the outer ends of said rods, pins secured at one end to the gate-bars and extended through the drag, transverse bars having recesses to receive the outer ends of said pins, and levers pivoted to the drag and adapted to operate the said pins.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2429146 *Dec 11, 1942Oct 14, 1947Carl WesselMold and core structure
US6162040 *Feb 1, 1999Dec 19, 2000Velcro Industries B.V.Molds for forming touch fasteners
US6187247May 13, 1998Feb 13, 2001Velcro Industries B.V.Injection molding parts with fastener elements
US6224364Sep 21, 1998May 1, 2001Velcro Industries B.V.Injection molding products having fastener elements
US20080254889 *Apr 11, 2008Oct 16, 2008Peter SispoidisMethod for correcting impression flow
Cooperative ClassificationB28B7/10