US2705061A

US2705061A - Metallic tower and mast

Info

Publication number: US2705061A
Application number: US170447A
Authority: US
Inventors: Donald C Getz
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-06-26
Filing date: 1950-06-26
Publication date: 1955-03-29
Anticipated expiration: 1972-03-29

Description

D. C. GETZ METALLIC TOWER AND MAST 2 Sheets-$heet 1 Filed June 26. 1950 um .m mm a fl d wt 0 09; Y B 25 M 5 6M METALLIC TOWER AND MAST Filed June 26. 1950 2 Shets-Sheet 2 l alliiiiiiil Fig. 4

Donald 6. Gel:

Fi 5 INVENTOR.

United States Patent METALLIC TOWER AND MAST Donald C. Getz, Salem, Ohio Application June 26, 1950, Serial No. 170,447

3 Claims. (Cl. 189-13) This invention relates to an improved metallic tower and mast construction especialy designed to support a television antenna or the like.

An object of the invention is to provide a combined tower and mast which is self-supporting and which possesses great rigidity and strength.

Another object is to provide a combined tower and mast in which the mast may be rotatably adjusted and lowered relative to the tower to respectively set the antenna for most efficient reception of signals and facilitate installation and repair of the antenna.

A further object is to provide a combined tower and mast whose principal parts consist of pipe and rod sections, and wherein the mast is effectively braced relative to the tower by truss means including chord wires or cables connected at their upper ends to the upper portion of the mast and at their lower ends to the intermediate portion of the tower, and two series of radial brace rods at spaced points between the ends of the chord wires and respectively connecting the latter to the intermediate portion of the mast and to the upper portion of the tower.

Other objects and features of the invention will be apparent from the following description when considered with the accompanying drawings, in which:

Figure l is an elevational view of a combined tower and mast constructed in accordance with the present invention and supporting a television antenna.

Figure 2 is an enlarged fragmentary horizontal section taken on the line 2-2 of Figure 1.

Figure 3 is a fragmentary vertical section taken on the line 3-3 of Figure 2.

Figure 4 is an enlarged fragmentary vertical section taken on the line 4-4 of Figure 1.

Figure 5 is an enlarged fragmentary horizontal section taken on the line 5-5 of Figure 1.

Figure 6 is a fragmentary vertical section taken on the line 6-6 of Figure 5.

Referring in detail to the drawings, 5 indicates a television antenna supported by the structure constituting the present invention, said structure comprising a tower 6, a mast 7 supported by said tower, and a truss means 8 bracing said mast relative to said tower. The antenna is conventional and includes a pole or shaft 9 carrying a low frequency dipole 10 and a high frequency d1pole 11 The tower comprises a plurality of preferably three upwardly converging posts 12 rigidly connected by brace rods 13 substantially from top to bottom, and having foot plates 14 on their lower ends bolted at 15 on concrete posts or piers 16, and a mast holder 17 including a vertical tube 18 having its upper end arranged between and fixed to the upper end portions of posts 12. The mast holder also includes a removable cross pin or bolt 19 in the lower end portion of tube 18, and set

screws

20 and 21 in the upper and lower portions of said tube.

The mast 7 comprises a lower pipe section 22 having its lower portion slidably and rotatably fitted in the tube 18, and resting at its lower end upon the cross pin or bolt 19, an upper pipe section 23 of smaller diameter than and having its lower end portion fitted and secured in the upper end portion of section 22, and an antenna holder 24 including a vertical tube 25 having its lower end portion fitted and secured in the upper end portion of the upper mast section 23 and provided near its lower end with a cross pin 26. The lower end portion of the anice tenna pole 9 is fitted and secured in the tube 25 and is seated on the cross pin 26.

The truss means includes a centrally apertured plate 27 fitted on the tube 25 and resting on. the upper end of mast section 23, a plurality of flexible chord wires or cables 28 anchored at their upper ends to the corners of plate 27 and at their lower ends to the posts 12 intermediate the top and bottom of the tower, a turnbuckle 29 associated with each chord wire or cable to tighten the same, and two series of

radial brace rods

30 and 31 at spaced points between the ends of the chord wires or cables and respectively connecting the latter to the inter mediate portion of the mast and to the upper portion of the tower. The brace rods 30 are rigid with and radiate from the upper end of a sleeve 32 through which the mast section 22 slidably extends, and a collar 33 is secured on said mast section 22 at the lower end of sleeve 32 to prevent the latter from lowering on and relative to said mast section 22. Inclined braces 34 are provided for

brace rods

30 and 31, and the latter are provided at their outer ends with eye members 35 through which the chord wires or cables 28 freely extend. The brace rods 31 are fixed to and radiate from the upper ends of tube 18 and posts 12.

By loosening the

set screws

20 and 21, the mast and the antenna may be turned to set the latter for most efiicient reception of signals, and upon removal of the cross pin or bolt 19, the mast may be lowered by sliding the same downwardly through the tube 18 to facilitate installation and repair of the antenna.

From the foregoing description, the invention and its advantages will be understood and appreciated by those skilled in the art.

Having described the invention, What is claimed as new is:

1. For use in erecting a television antenna in a plane elevated well above the ground and at a safe distance from adjacent buildings, self-supporting support means comprising, in combination, a metallic tower, a metallic mast slidably and rotatably mounted atop said tower and having its lower end accessible by way of said tower for raising and lowering, a vertical tube secured to the upper end of said mast and providing an adapter socket for reception and removable retention of an antenna pole, horizontal spreader rods secured to and radiating from said tower, a sleeve surrounding the intermediate portion of said mast, a collar adjustably mounted on said intermediate portion, said sleeve resting on said collar, other horizontal spreader rods secured to and radiating from said sleeve, flexible guy wires having their intermediate portions slidably lashed to the outer ends of the respective spreader rods, having their upper ends connected with the upper portion of said mast and their lower ends adjustably anchored on an intermediate portion of said tower.

2. A television antenna and self-supporting support means therefor comprising, in combination, a metallic tower adapted to be fixedly anchored in the ground, an open-ended vertical tube mounted atop said tower, a metallic mast slidably and rotatably mounted in said vertical tube, means on said tube for fixing the mast against rotation relative to the tube, additional means on said tube permitting the mast to be slid downwardly through and beyond the lower end portion of said tube, a vertical tube secured to the upper end of said mast, a television antenna including a post secured in said last-named vertical tube, the latter, mast and antenna being slidably and rotatably actuable relative to said tower, spreader means mounted on said tower, additional spreader means mounted on said mast, a plurality of flexible guy wires having intermediate portions adjustably connectible with the respective spreader means, means attaching the upper ends of the guy wires to the upper end portion of said mast, and additional means adjustably connecting the lower ends of said wires with said tower.

3. For use in grounding and erecting a television antenna in a plane which is elevated well above the ground and at a safe distance from adjacent buildings and which involves the use of a relatively high metallic tower; the improvement comprising a metallic tower, a metallic mast having a vertical tube secured to the upper end thereof and providing an adapter socket for reception and removable retention of the pole portion of a television antenna, an open ended vertical sleeve mounted atop said tower depending axially into an adjacent upper end portion of said tower and providing an adapter for the adjacent lower end portion of said mast, said mast fitting telescopically into said adapter sleeve for rotation and sliding and being adapted to slide downwardly through and below the bottom of the sleeve in order to lower the mast for repairing, adjusting and otherwise working on the antenna, a removable crosspin extending through the lower end portion of said sleeve, said mast resting on said crosspin so that when the crosspin is removed the mast may be dropped down through the sleeve and into the tower in the manner stated, and truss means bracing the mast and embodying flexible chord wires connected at their upper ends to the upper portion of the mast and connected adjustably and removably at their lower ends to said tower, a second sleeve surrounding the intermediate portion of the mast, a collar adjustably mounted on 4 the intermediate portion, said second sleeve resting on said collar, and horizontal spreader rods secured to and radiating from the respective sleeves, the outer ends of said rods being slidably connected with adjacent cooperating portions of the respective chord wires.

References Cited in the file of this patent UNITED STATES PATENTS 37,207 Welham Dec. 16, 1862 287,881 Smith Nov. 6, 1883 484,144 Dorward Oct. 11, 1892 508,078 Baker Nov. 7, 1893 781,977 Wentworth Feb. 7, 1905 1,669,611 Goldberg May 15, 1928 1,963,014 Brown June 12, 1934' 2,583,210 Edwards Jan. 22, 1952 2,592,108 Bader Apr. 8, 1952 2,611,456 Bader Sept. 23, 1952