US 1903683 A
Description (OCR text may contain errors)
April 11, 1933.
G. A. N UTE PEDESTAL FOR TRAFFIC SIGNALS OR THE LIKE Filed Jan. 14, 1952 Patented Apr. 11, 1933 UNITED STATS GFFICE GEORGE A. NUTE, OF SOMERVILLE, IJIASSACHUSETTS, ASSIGNOR OF ONE-HALF TO DAVID f r H. YOUNG, OF WILLIMANSETT, MASSACHUSETTS PEDESTAL FOR TRAFFIC SIGNALS OB, THELIKE Application filed January 14, 1932. Serial No. 586,488.
Referring in detail first to Figure 1 of the This invention relates to apedestal intended for a variety of uses but more especially for supporting a traffic signal, e. g., traffic lights, in the middle of a highway and at street intersections or other locations Where it is exposed to damage on account of accident or faulty driving of motor vehicles. It may be used for other purposes, such as supporting a policemans traffic box; or, it may constitute a fence post on a highway.
The present invention provides a pedestal constructedto withstand not only ordinary use, but also being struck or side-swiped, Without damage to the signal element supported thereon or to itself. Broadly stated, the pedestal of the present invention includes a post for supporting the signal element in a normally upright position, which post is anchored to a suitable base and includes a flexible link adjacent to the base and permitting the deflection or flexing of the post about the link. The post is surrounded by a suitable bumper column, which has a vertical central bore or hollow through which the post loosely passes so that the column can be revolved about the post. The column can be suitably supported for such revolving action on the same base to which the post is anchored. Associated with the normally upright post and the bumper column is means which permits the deflection of both the post and column about the flexible link under the action of a deflecting force or impact from a vehicle and which reacts upon the removal of the force to restore both to upright position.
With the foregoing and other features and objects in view, my invention will now be described in greater detail in conjunction with the accompanying drawing, wherein Figure 1 represents a vertical section taken centrally through a pedestal embodying the present invention.
Figures 2 and 3 are sections on the lines 22 and 33, respectively, of Figure 1.
Figure 4 is a front elevation of the pedestal in its normally upright position and deflected to an inclined position shown in dotted lines.
drawing, 1 represents a rigid, normally upright post for supporting thesignal element. The post includes near its lower end a flexible link, which, as shown, can take the form of a chain 2, one end of which engages the end of the rigid post proper and the other end of which engages under the apex portion of an angular anchor-piece 3, whose sides are embedded in a concrete or other appropriate base 4. The sides of the anchor-piece preferably terminate in outwardly turned portions 5,.which are shown inclined somewhat upwardly so as to ensure firm anchorage in he base. A. bumper column 6 having a vertical bore or hollow centrally therethrough surrounds the post 1, which passes loosely through the bore. The lower end of the column can rest on suitable bearing means provided on the base 4: and which permit free sliding movement of the column on the base and the revolution of the column about the post. The bearing means shown comprises a circular raceway or track 7 containing therein ball bearings 8 or their equivalent. The race-way can be partially embedded in the concrete base, which preferably includes a suitable angle-iron reinforcement 9 immediately under the race-way. The lower end of the column can bear directly on the ballbearings 8 as shown.
i -[bile the column 6 might assume various forms, nevertheless it is, as illustrated, preferably of annular shape and of gradually increasing cross-section toward its lower end, where it should be sturdy enough to resist the shock of being struck by a motor vehicle. Thematerials of construction of the column preferably consist of an outer shell 10 of suitable sheet metal, filled with concrete 11.
The means shown for righting the post and the columnafter they have been deflected by an impact includes a compression coil spring 12 encompassing the post within the bore of the column. This spring is arranged somewhat above the flexible link 2 and is restrained from vertical movement at its lower end by a bearing element 13 projecting from the column inwardly into the bore and at its upper end by a circular plate 14. apertured so as to pass through the post and held fast against the spring by a nut 15 in threaded engagement with the post. The plate 14 also serves to keep the post from sagging at its flexible chain portion by virtue of the nut 15 engaging thereover.
The bearing element 13 may be formed an annular shelf, which constitutes a continuation of a ring member 16 passing through the shell 10 and locked in place in the concrete filler 11, as best shown in Figure 3. Suitably spaced openings 17 can be formed through the ring member 16, so that the concrete filler may continue through the openings as cylindrical fastening elements.
I'Vhen the pedestal is used for supporting a traific light or similar signal element requiring electric wiring, the wiring 180 can take its course through the base 4 and upwardly through the bore of the column to the signal element. In order to prevent dislocation or entanglement of the wiring on account of the revolving of the column 6 about the post 1, a circular plate 18 for holding the wiring in place can be fixed between the lower end of the spring 12 and the bearing element 13. As shown, the plate 18 has a key 19 engaging in a recess formed in the post 1, and has an aperture 20 through which the wiring passes upwardly through the center of the spring and thence through an aperture 21 formed in the plate 14 to the signal element.
The signal element can be supported by the postin any suitable manner. As illustrated, the upper end portion 22 of the post may be of square or other suitable cross-section so as to permit non-rotatable engagement thereover of a socket 23 of similar crosssection forming part of a mounting 24 for a light or similar signal element. The mounting may be tubular and include a base portion 25 serving to support the lower end of a tubular housing 26 telescoped in the mounting and terminating at its upper end in an enlarged, transparent bulb portion 27 containing the light. A suitable cap or cover plate 28 aflixed to the tubular housing 26 and projecting over the upper end of the column 6 can serve to prevent access of rain and snow into the bore of the column.
It is thus seen that I have provided a sturdy and compact pedestal, which can stand up against side-swiping and/or impact by Inotor vehicles without damage, and which when struck is simply tilted or deflected about the flexible link 2 to the inclined position shown in Figure 4, while the impact is absorbed in the compression against the bearing element 13 of the spring 12, whose recoil or reaction serves to restore the pedestal automatically to its normally upright position.
Of course, the base 4 may be partially or wholly embedded in the ground; or it may 1,903,583 I ,I 4 4. a i
be set upon the ground so as to permit the pedestal to be handled as a portable unit.
What I claim is:
1. In a pedestal for a traffic signal or the like, a post in a normally upright position for supporting the signalelement, a base to which the lower end of said post is anchored, a bumper column surrounding said post and revolvable about said post, and bearing means on said base on which said column is free to ride, said bearing means including a circular race-way fixed to said base and rotatable bearings within said race-way and on which the lower end of said column bears.
2. In a pedestal, a post in a normally upright position and including a flexible link at its lower end, a base to which said link is anchored, a column surrounding said post and revolvable about said post, means associated with said post and column to permit the deflection of said post and column about said flexible link under the action of a deflecting force and reacting upon the removal of said force to restore said post and column to upright position, and rotatable bearings between the lower end of said column and said base and on which said column freely rides so as to permit its revolution about said post.
In testimony whereof I have aflixed my signature. 1
GEORGE A. NUTE.