US 2707034 A
Description (OCR text may contain errors)
April 26, 1955 J. w. HETRICK TELEVISION MAST STABILIZER 2 Sheets-Sheet 1 Filed June 30, 1954 INVENTOR -fi.@ (a NM P 1955 J. w. HETRICK TELEVISION MAST STABILIZER 2 Sheets-Sheet 2 Filed June 30, 1954 INVENTOR za/vm United States Patent O ce 2,707,034
TELEVISXQN MAST STABILIZER John W. Hetrick, Newport, Pa. Application June 30, 1954, Serial No. 449,493 2 Claims. (Qt. 189-314) ates to antenna it signals or the e present invention is to provide a staas which is designed to prevent sway- The invention rel to receive televisio An object of th bilizer for antenn ing and vibration.
Another object is to provide an antenn ted as a separate aecessor n or re-design of the ant bject is to provide an ante eption which prevents p tenna sway or undue moti cts and advant masts of the type used a stabilizer which may be moun y without involving modificati nna stabilizer for television rec icture breathing" caused by an ing parts thro Fig. 1 is an elevation 0 on an antenna mast.
'g. 2 is a plan view of the same.
' eneralized elevation of t on positioned on a VHF ughout the sev l f the present dev1ce in position on of the present device nna installation.
awings by distinguishing refe observed that the invention ent, spring-leaf 21 positioned on ssembly comy rectangular con- -point for added -type clamp 6 as ide, cylindrical, split ng 5. A helper or 'tion adjacent the ckles 8. The split-type clamp Patented Apr. 26, 1955 6 is tightened by means of bolt 9 and nut It The ends 1 of the main spring leaf 5' press against the antenna mast 12 as shown in Fig. 1. In Fig. 2 the clamp 6 is shown in two sections for easy assembly.
In use, three units are needed to form one assembly with the main leaf springs 5 being positioned within the clamp 6. The clamp 6 is tightened by means of bolt 9 and nut 10 after the three main leaf springs 5 have been positioned against the antenna mast 12. In instances wherein extra stabilization is needed auxiliary leaf springs 7 which are welded to the clamp 6 are positioned adjacent the main leaf springs 5 by means of spring shackles ese auxiliary leaf springs '7 are not needed with light weight installations. It is apparent that the present assembly positioned at a critical point along the extent of the mast 12 effectively prevents sway due to wind action without the use of guy wires or the like. One effec- 2. In an antenna stabilizer of the type described, the combination of a plurality of main leaf springs, said main leaf spring ends having a rectangular configuration and being twisted through its central section, a split clamp tionally in contact with an antenna mast, said split clamp provided with auxiliary leaf springs attached thereto, the extremities of said auxiliary leaf springs being connected with said leaf spring ends by means of shackles.
References Cited in the file of this patent UNITED STATES PATENTS 1,773,398 Velle Aug. 19, 1930 1,778,830 Irvine Oct. 21, 1930