US244110A - Half to walter o - Google Patents

Description

S. BUDLONG. PATTERN FOR CASTING BEL-'1 HOOKS.

(No Model.)

Patented July 12 FIEl-l.

UNITED STATES SIMEON BUDLONG, OF PROVIDENCE,

PATENT OFFICE.

RHODE ISLAND, ASSIGNOR OF ONE- HALF TO WALTER O. TALOOTT, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 244,110, dated. July 12, 1881,

Application filed May 31, 1881'. (No model.)

To all whom it may concern Be it known that I, SIMEoN BUDLONG, of the city and county of Providence, in the State of Rhode Island, have invented certain new 7 and useful Improvements in Patterns for GastingBelt-Hooks; and I do hereby declare that the following specification, taken in connection with the drawings furnished and forming a part of the same, is a clear, true, and complete to description of my invention.

My said improvements relate to the manufacture of the higher grades'of cast-metal belthooks, consisting of a plate provided with teeth inclined or barbed, or both.

Heretofore cores have been employed for roughly obtaining said inclined and barbed features in the operation of casting; but as such teeth should be sufficiently smooth and sharp to enable them to properly puncture and seat themselves in a belt when the latter is compressed or driven thereon, more or less machinery has been hitherto necessary for removing the metallic webs incident to the use of said cores, and also for imparting a suitable finish, as well as for developing good points and edges on the teeth.

The objects of my invention are to obviate the use of cores, and thereby to lessen the cost of casting belt-hooks, and also to obviate the costly necessity of machining the teeth thereof.

My said improvements are based upon the well-known principle of hinging or pivoting one portion of a pattern to or with another portion.

After fully describing myinvention, the several features believed to be novel will be specified in detail in the claims hereunto annexed.

Referring to the drawings, Figure 1 represents in three views-top, bottom, and. transverse section-one variety of belt-hook cast from one form of my improved pattern. Fig. 2 is a top view of a pattern involving my invention. Fig. 3 is a bottom view of the same. Fig. 4 is a lateral section of the pattern in position as if in sand. Fig. 5 is a similar sectional view of the same as when ready to lift from the sand. Fig. 6 is a lateral sectional view of a similar pattern for casting belt-hooks, having two rows of barbed teeth on each side of the plate. Figs. 7 and 8 are lateral sectional views of patterns for casting belt-hooks with two or four rows of teeth with inclined inside edges or faces.

Several patterns are preferably united, for simultaneously molding two or more long belthooks, suitable either for wide belts or for lateral division into several shorter hooks for narrow belts.

The plates a of the pattern produce the plate b of the hook, and the teeth 0 of the pattern produce the teeth 0 of the belt-hook shown in Fig. 1.

It will be understood that there are various forms of belt-hook plates and various forms of teeth, and that those thus shown are selected for purposes of illustration, without limiting myself thereto.

Each plate a of the double pattern, Figs. 2 to 5, inclusive, is composed of three longitudinal sections. The central sections of both plates are united by a central head, d, which is provided with lateral bearing-wings e and pendent anchor-pinsf, for firmly securing the patterns in their proper positions in the sand. The head d is also provided with alifting-hole, g, whereby with the usual tool the patterns may be raised bodily from the sand. While the wings and anchor-pins are not absolutely essential, I prefer to employ'them in combination with these patterns. Although this neck and the anchor-pins are here shown in connection with duplicate patterns, it is obvious that a single pattern may be employed therewith to advantage; but in practice it is well to unite ten or twelve patterns of the character shown to a central bar, serving as a neck for the patterns, and enabling the sections of either pattern to be swung upwardly with a minimum of liability of unduly disturbingany of the others.

The side sections a of the plate are duplicates, and to them the rows of teeth 0, placed side by side, are connected. Said side sections in this instance are flexibly united to the central section by being rigidly secured to hingerods h, which have suitable bearings at the outer ends of the central sections, near their edges, and, as here shown, the hinge-rods of the side sections in both patterns pass across the head d and are bent to form finger-pieces h, by which said rods and the toothed side sections on one or both sides of both patterns may be manipulated simultaneously. The center of the hinge-rod, as shown in Figs. 4 and 5, is preferably so located with reference to the lower corners or barbs of the teeth of its section that when said section is swung upwardly by said rod the corners of the teeth will move within the curved lines traversed by the outer edges of the teeth, and thereby preventthe sand mold or impression of each tooth from injury during the swinging movement. It will be readily understood that after the patterns have been properly bedded and the cope removed the hinged sections are swung upwardly, thus leaving a perfect mold.

Some belt-hooks have two or more rows of teeth like those previously shown at each side of the plate, and for casting four rows of such teeth the pattern-plate is constructed in five sections, as shown in Fig. 6. The central section and the two hinged side sections a are substantially as before described; but to the projecting outer edges of said side sections a the supplemental side sections a are hinged. With this pattern bedded in the sand as before described, the supplemental sections are first lifted or swung upwardly, followed by a similar movement of the intermediate sections, thus leaving the entire pattern free for removal from the sand.

The hinge-rods of each section may be extended across a similar neck, as before described, and provided with similar fingerpieces; or each section, at the end adjacent to the neck, may have a projecting pin, by which the swinging movement may be effected, said pin causing a readily-removed stub on the castmg.

Certain other forms of belt-hooks have one or more rows of teeth on each side, which have no barbs at their tips, but are instead inwardly inclined or curved on their inner faces, and for casting such books the pattern-plate may be constructed in but two sections, as illustrated in Figs. 7 and 8, hinged at the center of the pattern-plate. Patterns for this class of hooks may also be duplicated or congregated, as before described, and provided with the neck and anchor pins, the hinge-rod common to both patterns passing through or over said neck and being firmly connected therewith.

The hinge-rod in this form of pattern cannot well be used for swinging the sections, because both of them would preferably be rotated on said rod; but pins projecting from the end of each section near the neck may be relied upon for swinging the sections.

My patterns, for good service, are preferably composed of metal, well fitted and highly finished, and with such I have been able to produce belt-hooks of superior quality at much lower cost than books of equal grade can possibly be produced by the patterns heretofore used in casting and with the subsequent machinin g operations necessarily in cidentthereto.

As before herein indicated, I am well aware that the hinging of one part of a pattern to another to facilitate its removal from the sand has been heretofore common in connection with patterns for casting dovetails for stove-castings, ear-lugs on stove utensils, and pipe-hooks; but, so far as I know, I am the first to apply the hinged principle to patterns for casting belt-hooks.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A belt-hook pattern embodying a patternplate longitudinally divided into two or more sections, flexibly united with or hinged to each other, and provided on two or more of said sections with one or more rows of patternteeth, side by side, substantially as described.

2. The combination, with one or more belthook patterns composed of hinged sections, of a neck united thereto, substantially as described. v

3. The combination, with one or more belthook patterns composed of hinged sections, of a neck provided with lateral wings, substantially as described.

4. The combination of one or more belt-hook patterns composed of hinged sections, a neck, and one or more pendent pins on said neck, substantially as described.

5. The combination, with a pair of belt-hook patterns composed of hinged sections and having a central neck, of hinge-rods common to sections in both patterns, substantially as described, whereby said sections may be simultaneousl y swung upwardly, as set forth.

SIMEON BUDLONG.

Witnesses:

WALTER O. TALOOTT, GILMAN E. J OPP.

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