TH37133A - Block - Google Patents

Abstract

DC60 (01/12/41) This invention provides an improved plug which is manufactured by a method in which the component that forms the body of the plug is loaded into a die (10), a removable shaft (12) is positioned in the die (10) to create a hole that extends longitudinally (31, 41) in the body of the plug, a removable internally threaded insert (16) is positioned in the die in alignment with the removable shaft (12) to create an internal thread (37, 43) on the hole portion, and a metal plate (18) is positioned in the die to define the boundary of the flat top end (35, 40A) of the body of the plug, which is characterized by a separator (22) being positioned between the externally threaded insert (16) and the metal plate (18), in which the internal thread (37, 43) in the hole (31, 41) of the body of the plug is created at a distance from the top end (35,40A) of the body when the component is pressed. Molded Molding This invention shall provide a mold for the production of this improved plug. This invention shall provide an improved plug which is produced by a means in which the components that will form the body of the plug are loaded into a mold (10). A removable stud (12) is positioned in the mold (10) to create a longitudinal hole (31, 41) in the body of the plug. A removable, internally threaded insert (16) is positioned in the mold in alignment with the removable stud (12) to create an internal thread (37, 43) on the hole portion, and a metal plate (18) is positioned in the mold to define the boundaries of the flat top end (35, 40A) of the body of the plug. It is characterized by the separator (22) being positioned between the externally threaded insert (16) and the metal plate (18), with the internal threads (37, 43) in the holes (31, 41) of the body of the plug being created at a distance from the top end (35, 40A) of the body when the component is pressed into the mold. This invention would also provide for the molds used to produce this improved plug.

Claims (13)

1. Method of manufacturing the plug body: The components for creating the plug body are loaded into the mold (10). A removable core (12) is positioned in the mold (10) to create a hole that extends longitudinally (31, 41) into the plug body. A removable internally threaded insert (16) is positioned in the mold in alignment with the removable core (12) to create internal threads (37, 43) on the hole portion, and a metal plate (18) is positioned in the mold, with a separate separator (22) positioned between the externally threaded insert (16) and the metal plate (18), with the internal threads (37, 43) on the hole portion, and the metal plate (18) is positioned in the mold to define the boundaries of the flat top end (35, 40A) of the plug body. It is characterized by the separator (22) being positioned between the external threaded insert (16) and the metal plate (18), where the internal threads (37, 43) in Figure (31, 41) of the body of the plug are created to leave a gap from the top end (35, 40A) of the body when the component is pressed into the mold. 2. The method under claim 1 is characterized by the fact that the filler bars (30, 40) are cast by uniform compression on all sides in a deformable mold. 3. A method under claim 1 or 2 which is of a special nature in which a threaded insert (16) and a removable shaft (12) are inserted into the mold in a single unit hole. 4. The mold for producing the body of the plug consists of a removable core (12) that aligns with the required holes (31, 41) in the body (30, 40), an outer shell (14) for enclosing the removable core (12) to define the boundaries of the cavity (10) in which the body is to be created, an internally threaded removable insert (16) that is inserted into the mold aligned with the core (12) to create internal threads (37, 43) on the portion of the hole to be created (31, 41), and a metal plate (18) that is positioned in the mold to define the boundaries of the flat top end (35, 40A) to the body, which is made more specific by a separator (22) that is positioned between the externally threaded insert (16) and the metal plate (18), where the internal threads (37, 43) in the hole are created at a distance from the top end (35, 40A) of the body. 5. Molds according to claim 4 which have the special characteristics that the threaded insert (16) will be a solid cylinder or a cylindrical ring. 6. A mold according to claim 4 or 5 that is of a special nature in which the threaded insert (16) can be attached to or is constructed as an extension of a removable shaft (12). 7. The molds, according to claims 4-6, are of the special nature that the separators (22) are made of metal or ceramic material and have a thickness of 10-50 mm. 8. A die according to any one of the claims 4-7 that has the special characteristics of having a threaded insert (16) made of steel and having an outer diameter of 50-150 mm and a length of 25-150 mm. 9. A mold pursuant to any one of claims 4-8 that has the special characteristic of having a threaded insert (16) being secured by the thread to the separator (22). 10. A plug, which has a body (30, 40) with a hole extending longitudinally (31, 41) that opens to a flat top end (35, 40A) of the body, is notable for the hole (31, 41) having an internal threaded section (37, 43) separated from the top end (35, 40A) by an annular recess (36, 42). 11. The plug, according to claim 10, is of the special characteristic that the ring-shaped recess (42) has a diameter greater than the diameter of the internal threaded part (43). 12. A special type of plug under claim 10 or 11, which, when attached to the lifting and lowering mechanism (46), will fill the ring-shaped recess with fire-resistant cement. 13. The plug, according to claims 10-12, is of the special nature that, when attached to the lifting and lowering mechanism (46), the ring-shaped recess (42) contains a ceramic ring (45) that surrounds the lifting and lowering mechanism (46) (13 claims, 2 pages, 5 figures).