Apparatus for supporting a cantilevered beam from a T-shaped post
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to support apparatus for supporting a cantilevered beam from an upright post of T-shaped cross section, and more particularly relating, but not by way of limitation, where such cantilevered beam is used as a plant support, mailbox holder or sign support. 
     2. Brief Description of the Prior Art 
     A number of types of supports for attachment to T-shaped posts have been heretofore devised which have been used to support mailboxes or signs. None of the previous supports have utilized a pair of spaced horizontal plates having a cross-shaped aperture therein for sliding registry with the post and a center plate attached along an edge of said plates having at least one bolt therethrough to bear against the post. Some previous supports require registration with pre-drilled holes in the post which is avoided with the present invention. Other previous supports require the cantilevered beam to be tilted while being moved to various positions on the post. This feature is frequently undesirable, particularly when the apparatus is used as a plant support, and the present invention presents no such problems. The plant support disclosed in U.S. Pat. No. 4,249,342, held by the inventor of the present invention, requires guide lines to be run from the ground to a plant support collar. The present invention provides another means of support for the collar which eliminates the necessity of guide lines. 
     BRIEF DESCRIPTION OF THE PRESENT INVENTION 
     The support apparatus for a cantilevered beam of the present invention attaches to an upright post of substantially T-shaped cross section composed of a transverse flange and a base flange extending perpendicular from a side thereof. On an opposite side of the transverse flange protrudes a spaced series of tangs. A bracket having a cross-shaped aperture therein is formed by a pair of spaced horizontal plates joined along one edge by a vertical center plate. The center plate has a threaded hole therethrough, and a bolt is threaded through the hole to bear against a surface of the transverse flange between a pair of tangs. In an alternate method of fastening, the center plate has a pair of holes with a bolt threaded through each. These bolts bear against the surface of the transverse flange, straddling the series of tangs. 
     Several embodiments of the invention are described, and in each of these embodiments the cantilevered beam has a first end disposed between the two spaced plates of the bracket, fixedly attached thereto by welding or the like. 
     In the first embodiment, the apparatus is characterized as a plant support generally used in conjunction with a plant such as a tree. The cantilevered beam is composed of a first tubular member having a second tubular member slidingly disposed therein. A plurality of holes are vertically disposed in both tubes, and at least one bolt passes through a hole in the first tubular member and a corresponding hole in the second tubular member to hold the tubes in a predetermined relationship. Attached to a free end portion of the beam is a first semi-cylindrical collar portion opening radially outwardly with a second semi-cylindrical collar portion attached thereto. Bolts and nuts are used to hold the collar portions together to form a cylindrical collar means around the stem of the tree. A sheet of resilient material is placed between the collar means and the stem of the tree to provide protection for the stem. 
     A second embodiment of the invention characterizes a support for a mailbox or the like. In this embodiment, the horizontal beam has a horizontal rectangular plate attached thereto. The plate is substantially the same size as the lower surface of the mailbox, and is interchangeable with other similar plates. 
     In a third embodiment of the invention, the cantilevered beam acts as a support for a hanging sign. The beam has a pair of spaced vertical holes disposed therethrough, and a pair of hooks having a threaded upper portion extend through the holes, secured by nuts. The sign is swingingly connected to the hooks. 
     In the fourth embodiment of the present invention, the apparatus is characterized as a support for a plant holder such as that disclosed in U.S. Pat. No. 4,249,342. The cantilevered beam is composed of a first tube portion and a second tube portion slidingly disposed therein identical to that previously described in the first embodiment. Attached to the free end of the beam are a pair of outwardly curving horizontal arms which form a semi-circular yoke. Extending upwardly from, and perpendicular to, each of the arms is a cylindrical pin. Each of the pins registers through a pair of holes in the plant holder, thus providing support for the plant holder which rests on the yoke. In this embodiment, the invention may also be used as a support for any device having similar holes therein, and is not limited to the invention of U.S. Pat. No. 4,249,342. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an elevation view of the invention in which the apparatus is characterized as a plant support. 
     FIG. 2 is a plan view of the apparatus as a plant support, and also illustrates the bracket having one bolt for attaching to a T-shaped post. 
     FIG. 3 is a detailed elevation view of the bracket as attached to a T-shaped post. 
     FIG. 4 is a plan view of the apparatus as a support for a mailbox or the like, and also illustrates the use of two bolts in the bracket for attaching to a T-shaped post. 
     FIG. 5 is an elevation view showing the apparatus as a support for a mailbox or the like. 
     FIG. 6 illustrates a configuration in which the apparatus is used as a support for a hanging sign. 
     FIG. 7 is an isometric view in which is illustrated a support for a plant holder such as disclosed in U.S. Pat. No. 4,249,342. 
     FIG. 8 is an elevation view of the embodiment of the invention illustrated in FIG. 7. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION 
     Referring now to the drawings and particularly to FIGS. 1, 2 and 3, the support apparatus for a cantilevered beam of the present invention is shown and generally designated by the numeral 10. The apparatus is designed for attachment to an upright post 12 having a lower end imbedded in a ground surface 14. The post has a substantially T-shaped cross section composed of a transverse flange 16 and a base flange 18 extending perpendicularly from a side of the transverse flange 16. On an opposite side of the transverse flange 16 are a spaced series of tangs 20 protruding therefrom. 
     A bracket 22 has a cross-shaped aperture 24 therein which slidingly registers with post 12. The bracket includes a pair of spaced horizontal plates 26 and 28 joined along one edge by a vertical center plate 30. The center plate 30 has a threaded hole 32 therein. A bolt 34 is threaded through hole 32 and bears against surface 35 of transverse flange 16 between a pair of tangs 20, thus providing fastening means for securely attaching bracket 22 to post 12. 
     An alternate method of fastening the bracket 22 to the post 12 is illustrated in FIG. 4 in which center plate 30 has a pair of holes 32 with a bolt 34 threaded through each. The bolts bear against surface 35 of transverse flange 16 such that they straddle the series of tangs 20. 
     In each of the embodiments of the invention hereinafter described, the cantilevered beam has a first end 36 disposed between spaced plates 26 and 28 in parallel contact with inwardly facing sides 37 thereof as best illustrated in FIG. 3. End 36 is fixedly attached to plates 26 and 28 by welding or the like. 
     Referring again to FIGS. 1 and 2, a first embodiment is shown in which the apparatus characterizes a plant support generally used in conjunction with a plant such as a tree 38. The cantilevered beam is composed of a first tubular member 40 having a large square cross section and a second tubular member 42 of a smaller square cross section slidingly disposed in a free end 43 of tube 40 opposite first end 36 providing a telescoping means to adjust the length of the cantilevered beam. A plurality of holes 44 are vertically disposed in tube 40, and corresponding holes 46 are vertically disposed in tube 42. At least one bolt 48 passes through a hole 44 and a hole 46, and is secured by a nut 50 to hold tubes 40 and 42 in a predetermined relationship. 
     Attached to a free end portion 52 of tube 42 is a first semi-cylindrical collar portion 54 opening radially outwardly. At each end 56 of collar 54 is a radially outwardly extending flange 58. A second semi-cylindrical collar portion 60 has a pair of similar flanges 62. Each flange 62 is in parallel contact with a flange 58 as illustrated in FIG. 2. A pair of bolts 64 secured by a nut 66 hold collar portions 54 and 60 together to form a cylindrical collar means generally indicated by numeral 68 around the stem of the tree or plant 38. A sheet of resilient material 70 is placed between cylindrical collar means 68 and the stem of the tree 38 to provide protection for the stem. 
     A second embodiment of the invention is illustrated in FIGS. 4 and 5 wherein the cantilevered beam is characterized as a support for a mailbox or the like. In this embodiment, a horizontal bar 72 of square cross section is attached to bracket 22 as hereinbefore described. A horizontal rectangular plate 76 is attached in parallel contact to an upper free end surface 78 of bar 72 by bolts 80 passing through plate 76 and bar 72, secured by nuts 82. A small vertical flange 84 extends from three edges of plate 76. Plate 76 is substantially the same size as the lower surface of a mailbox 86 indicated by phantom lines, and is interchangeable with other similar plates to accommodate various sizes of mailboxes 86 or the like. 
     A third embodiment of the invention is illustrated in FIG. 6 wherein the cantilevered beam is characterized as a support for a hanging sign or the like. A bar 88 extends horizontally from bracket 22 and is attached thereto as hereinbefore described. Bar 88 is of substantially inverted V-shaped cross section with a free end portion 89 having a pair of spaced vertical holes 90 disposed therethrough. A pair of hooks 91 have a threaded, straight upper portion 92 extending through holes 90, secured by nuts 93, and a hook-shaped lower portion 94. The sign 96, shown in phantom lines, has a pair of eyes 98 attached thereto which are swingingly connected to hooks 91 by hangers 100. 
     A fourth embodiment of the invention is illustrated in FIGS. 7 and 8 wherein the apparatus is characterized as a support for a plant holder such as that disclosed in U.S. Pat. No. 4,249,342, held by the inventor of the present invention. In this embodiment, the cantilevered beam is composed of a first tube portion 40 and a second tube portion 42 forming a telescoping means identical to that previously described in the first embodiment of the invention. Attached to the free end 52 of tube 42 are a pair of outwardly curving horizontal arms 102 which form a substantially semi-circular yoke 104. Extending upwardly from, and perpendicular to, each arm 102 is a cylindrical pin 106. As illustrated in FIG. 7, the plant holder, generally shown by numeral 108, of U.S. Pat. No. 4,249,342 has a set of lower holes 110 and a set of upper holes 112. Cylindrical pins 106 are spaced such that they will register through a pair of lower holes 110 and a pair of upper holes 112 in plant holder 108, thus providing support for plant holder 108 which rests on yoke 104. It will be easily seen by those skilled in the art that this embodiment of the invention may be used as a support for any device having a pair of appropriately spaced vertical holes therethrough, and is therefore not limited to the invention of U.S. Pat. No. 4,249,342. 
     Thus the support apparatus of the present invention is well adapted to carry out the objects and obtain the ends and advantages mentioned, as well as those inherent therein. While presently preferred embodiments of the invention have been described for the purpose of this disclosure, numerous changes in the construction and arrangement of the parts can be made by those skilled in the art, which changes are encompassed within the scope and spirit of this invention as defined by the appended claims.