Subway rail anchor assembly

An anchor assembly for fixedly but removably securing an object to an underlying substructure, comprising:

• an insert member adapted to be fixedly and fully immersed within the underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of the underlying substructure when the hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member;
• a bolt member having an externally threaded shank portion at a first end thereof for threaded engagement within said internally threaded blind bore defined within said insert member, and having means at a second end thereof for exerting a compressive force upon the object when said first externally threaded shank portion is threadedly engaged within said internally threaded blind bore defined within said insert member;
• and
• a tubular sleeve member adapted to be disposed within and extend through the object to be secured to the underlying substructure so as to substantially house that portion of said shank portion of said bolt member which is interposed between said insert member and said compressive force exerting means of said bolt member, and for radially confining said shank portion of said bolt member so as to facilitate said threaded engagement of said externally threaded shank portion of said bolt member with said internally threaded blind bore of said insert member, an upper end portion of said tubular sleeve member being disposed adjacent to said compressive force exerting means of said bolt member, and a lower end portion of said tubular sleeve member being disposed in engaged contact with upper end surface means of said insert member for defining a seal between said lower end portion of said tubular sleeve member and said upper end surface means of said insert member so as to seal said open upper end of said internally threaded blind bore of said insert member and thereby prevent the ingress of the hardenable material, comprising a portion of the underlying substructure, into said internally threaded blind bore of said insert member prior to the setting of the hardenable material.

In combination, an object to be fixedly secured to an underlying substructure, and an anchor assembly for fixedly but removably securing the object to the underlying substructure, comprising:

• said object to be secured to the underlying substructure has a through-bore defined therein;
• an insert member adapted to be fixedly and fully immersed within the underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of the underlying substructure when the hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member;
• a bolt member having an externally threaded shank portion at a first end thereof for threaded engagement within said internally threaded blind bore defined within said insert member, and having means at a second end thereof for exerting a compressive force upon said object when said first externally threaded shank portion is threadedly engaged within said internally threaded blind bore defined within said insert member;
• and
• a tubular sleeve member adapted to be disposed within and extend through said through-bore of said object to be secured to the underlying substructure so as to substantially house that portion of said shank portion of said bolt member which is interposed between said insert member and said compressive force exerting means of said bolt member, and for radially confining said shank portion of said bolt member so as to facilitate said threaded engagement of said externally threaded shank portion of said bolt member with said internally threaded blind bore of said insert member, an upper end portion of said tubular sleeve member being disposed adjacent to said compressive force exerting means of said bolt member, and a lower end portion of said tubular sleeve member being disposed in engaged contact with upper end surface means of said insert member for defining a seal between said lower end portion of said tubular sleeve member and said upper end surface means of said insert member so as to seal said open upper end of said internally threaded blind bore of said insert member and thereby prevent the ingress of the hardenable material, comprising a portion of the underlying substructure, into said internally threaded blind bore of said insert member prior to the setting of the hardenable material.

In combination, an object to be fixedly secured to an underlying substructure, and an anchor assembly for fixedly securing the object to the underlying substructure, comprising:

• said underlying substructure;
• said object to be secured to said underlying substructure has a through-bore defined therein;
• an insert member adapted to be fixedly and fully immersed within said underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of said underlying substructure when the hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member;
• a bolt member having an externally threaded shank portion for threaded engagement within said internally threaded blind bore defined within said insert member, and having means at a second end thereof for exerting a compressive force upon said object when said first externally threaded shank portion is threadedly engaged within said internally threaded blind bore defined within said insert member;
• and
• a tubular sleeve member adapted to be disposed within and extend through said through-bore of said object to be secured to said underlying substructure so as to substantially house that portion of said shank portion of said bolt member which is interposed between said insert member and said compressive force exerting means of said bolt member, and for radially confining said shank portion of said bolt member so as to facilitate said threaded engagement of said externally threaded shank portion of said bolt member with said internally threaded blind bore of said insert member, an upper end portion of said tubular sleeve member being disposed adjacent to said compressive force exerting means of said bolt member, and a lower end portion of said tubular sleeve member being disposed in engaged contact with upper end surface means of said insert member for defining a seal between said lower end portion of said tubular sleeve member and said upper end surface means of said insert member so as to seal said open upper end of said internally threaded blind bore of said insert member and thereby present the ingress of the hardenable material, comprising a portion of said underlying substructure, into said internally threaded blind bore of said insert member prior to the setting of the hardenable material.

A method of removably securing an object to an underlying substructure, comprising the steps of:

• forming a through-bore within said object to be secured to said underlying substructure wherein said through-bore has a lower end portion and an upper end portion;
• disposing an insert member, having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end portion of said insert member, within the vicinity of said lower end portion of said through-bore formed within said object to be secured to said underlying substructure;
• inserting a tubular sleeve member into said through-bore formed within said object to be secured to said underlying substructure such that a lower end portion of said tubular sleeve member is seated upon an upper end portion of said insert member;
• inserting a bolt member, having an externally threaded shank portion, into said upper end portion of said through-bore formed within said object to be secured to said underlying substructure such that said threaded shank portion of said bolt member will be guidably disposed within said tubular sleeve member disposed within said through-bore formed within said object to be secured to said underlying substructure;
• threadedly engaging a lower end portion of said externally threaded shank portion of said bolt member within said internally threaded blind bore defined within said insert member such that said lower end portion of said tubular sleeve member seated upon said upper end portion of said insert member is tightly engaged with said upper end portion of said insert member so as to seal said open end of said internally threaded blind bore of said insert member and thereby prevent the ingress of freshly poured concrete material into said internally threaded blind bore of said insert member when said insert member is fully immersed within a freshly poured batch of concrete material;
• fully immersing at least said insert member within a freshly poured batch of concrete material which will form said underlying substructure when said freshly poured concrete material hardens and sets;
• and
• permitting said freshly poured batch of concrete material to harden and set so as to form said underlying substructure within which said insert member is fixedly secured so as to in turn fixedly yet removably mount said object to said underlying substructure.