US1661930A - Aerial mast or support - Google Patents

Description

March 6, 1928. 1,661,930

(3. L. DIETRICH AERIAL MAST OR SUPPORT Filed Dec. 1925 2 Sheets-Sheet l JTQQL- L1 LDiETTiEh' dawazfj March 6, 1928. 1,661,930

c. L. DIETRICH AERIAL MAST OR SUPPORT Filed Dec. 50, 1925 2 Sheets-Sheet 2 ,8 5! gnuento'a Patented Mar. 6, 1928.

"UNITED STATES GYBIL L. DIEIRICH, OF LOCKOUT MOUNTAIN, TENNESSEE.

' AERIAL ms'r on. surroun- Application filed December 30, 1925. Serial No. 78,444.

The present invention relates to sectional masts or supports, and more specifically to masts particularly well adapted for use upon roofs of various descriptions for the supporting of an aerial or antenna.

As is now the common practice for supporting an aerial for radio apparatus upon house tops, a single mast is erected and which mast must be braced by guy wires extending in several directions from the mast. The erection of such masts is more or less diflicult, due to the several diiferen't points at which the guy wires must be attached to different parts of the roof, and

which arrangement aside from being unsightly, in time becomes insecure due to the stretchmg of the guy wires.

It is therefore a primary object of this invention to provide an improved self supporting and self bracing aerial mast which may be easily erected without the requiring of any guy wires, and which mast when in position presents a more sightly appearance.

A further object of the invention is to pro-.

2 vide an improved aerial mast which maybe readily erected upon various types of roofs and which mast automatically adjusts itself to the various angles or pitches of the particular type of roof upon which the mast is erected.

A still further object of the invention is to provide an improved aerial mast embodying a number of rigid sections which may be readily disassembled for permitting of the mast being collapsed into a compact condition for shipping purposes.

A still further object of the invention is to provide improved aerial masts embodying sectional standards and a brace section, the

standards and brace section all being provided at their lower ends with swivel bearing plates which may readily adjust themselves to the inclination of the roof at the particular point below the bases of the respective sections.

Other ob'ects and advantages of the invention wi be a parent during the course of the followin detail description, taken in connection witli the accom anyin drawings, forming a part .of this speclfication,

and. in which drawings,

. Fi e 1 is a perspective view showing the improved aerial mast erected upon a gable roof. I

Fig. 2 is an enlarged front elevation of 5 the improved mast.

Figure 3 is an enlarged front elevation of the foot of the bracing section.

Figure 4 is a side elevation of the foot portion of the bracing member.

Figure 5 is a front elevation of the improved aerial mast and showing the feet of. the various sections in position for erection of the mast upon a flat roof.

Referring to the drawings in detail, and wherein similar reference characters designate corresponding parts throughout the several views, the letter A designates gen-. crallythe improved aerial mast embodying a pair of supporting standards B rigidly held together at their upper ends by means of an attaching fixture C; and bracing means D for supporting of the standards in a vertical position.

Each of the supporting standards B embodies a number of leg sections 10 which may either be ofsolid or tubular formation, and which leg sections are provided at their opposite ends with screw threads 11. These leg sections 10 which extend in upwardl 80 converging relation to one another, are pre erably connected by means of substantially T shaped fittings 12 having internal threads for receiving the threaded ends of the leg sections. A cross tie 13 comprising rod sections 14 for threaded engagement at their outer ends with the respective fittings 12, have their inner ends oppositely screw threaded for engaging in a centrally disposed T fitting 15. Carried by the lower end of each of the standards B, are attaching feet 16 each comprising an attaching or hearing plate 17 having upwardly extending spaced apart cars 18. A socket 19 adapted for screw threaded reception of the lower end of each standard, has a ortion thereof extending between the space apart cars 18 for pivotally receiving a pivot'pin 20 extending through the ears. Thus it will be seen that by reason of thethreaded connection of the socket with the leg section,and the pivot pin 20, that the bearing plate 17 may be disposed at various angular positions with respect to the axis of the leg section. Referring now to the attaching fixture C, and 05 which may be formed ofmetal or insulating material, the same is provided with diverging screw threaded sockets 21 for threaded reception of the leg sections 10. A suitable eye 22 may be formed at the top of the fixture C, and which eye forms a suitable anchorage for one end of the antenna H.

A bracing means D and which ma be disposed at either side of the standar s B, comprises a stay rod or bar 23 threaded at each end, and one threaded end of which 1s adapted for threaded connection with the T fitting 15. A socket 24 which is adapted for screw threaded connection with the opposite or lower end of the rod 23, is adapted to be pivotally connected with an anchor block 25 as b a transversel extending pivot pin 26. ecured to the lock 25 and extending in parallel relation with the in 26, is a bendable strap like anchoring p ate 27 provided with apertures 28 through which suitable fastening elements may be passed. By so attaching the strap 27 merely at its center to the block 25, the attaching end 29 of the strap may be readily bent downwardly over the ridge of a gable roof so as to conform with the an lar pitch of the roof to each side of the ri ge. By so having the fitting 15 receiving the oppositely threaded inner ends of the rod section 14, it will be seen that the stay 23 may be raised or lowered by pivoting about the cross tie 13.

In Figure 5, the improved mast is shown with the various base ortions thereof in a position to permit of t e mast being erected upon a flat roof. It is preferred that the anchoring plate 27 be left in a flat position as illustrated in Figure 5 in order that the same may either be left flat or shaped in any desired manner by the person erecting the mast to conform to the particular type of roof upon which the mast is being erected. 7

It will be seen that the mast may be readily erected on any type of roof, since the two pivotall connected feet 16 will automatically a just themselves to the itch or slant of the roof, and since the race means D is swingable about the cross tie 13 the same may be readily raised or lowered at its lower or anchoring end in accordance with the variations in height between the feet 16 and anchorin slots 25, such variations being due to the various pitches of gable roofs and which pitches would determine the distance below the ridge of the roof at which the feet 16 would contact with the roof.

The bearing plates 17 are provided with apertures 30 through which suitable fastening elements may be passed for anchoring of the plates to the roof.

While the standards B have been shown as embodying merely two leg sections, it will be ap arent that if so desired to provide a big er mast, that additional leg sections and cross ties may be provided, and if so desired a bracing means such as indithe standards,

eated by the letter D may be connected with each cross tie.

It will be seen that by so having the mast formed of sections as illustrated, the same may be readily shipped in a small and compact condition and yet when assembled will form a substantial mass suitable for the supportin of antenna wires.

From t 10 foregoing description it will be apparent that an extremely simple and novel aerial mast has been provided which is extremely neat in appearance, and one which may be readily erected upon various types of roofs without the necessity of employing a plurality of guy wires for retaining the mast in proper position.

Various changes may be made in the form of invention herein shown and described, without departing from the s irit of the invention or the scope of the 0 lowing claims.

I claim:

1. An aerial mast comprising a pair of upwardly converging supporting standards joined together at their up er ends, a cross tie connecting the interm iate portions of bearing plates pivotally connected to the base of each standard, a stay rod pivotally connected at one end to said cross tie, and an anchoring block pivotally connected to the opposite end of said stay rod.

2. An aerial mast comprising a pair of sectional supporting standards joined together at their upper ends, a cross tie, couplings serving for connecting the sections of said standards and the cross tie at its ends to the standards, attaching feet pivotally carried by the base of each standard, a stay rod pivotally connected at its u er end to said cross tie, and an'anchorin hock ivotally carried by the lower end of sai stay ro 3. An aerial mast comprising a air of supporting standards joined toget er at their upper ends, a cross tie connecting the intermediate portions of said standards, attaching feet pivotally carried by the lower end of said standards and having their pivot pins extending in right angular relation to said cross tie, a stay rod pivotally connected at one end to said cross tie, and an anchoring platepivotally carried by the lower end of said stay rod and havin its pivot pin extending parallel with said cross tie.

4. An aerial mast for the purpose specified com rising a pair of upwardl converging stan ards oined together at t ieir upper ends and having a cross tie connectin the intermediate portions of the standards, race means for retaining the standards in an erect position comprising a stay rod pivotally connected at one end to said cross tie and swingable in an arc vertically to various angular positions with respect to the standards, a socket carried by the free end of said stay rod, an anchor block pivotally connected to the socket, and a bendable stra like anchoring plate connected at its medial portion to said anchor block and extendin parallel with the pivotal axis of the anchor %lock.

5. A sectional aerial mast comprisin a pair of supporting standards each emb ying upper and lower sections having threaded terminal portions, connecting means for the upper ends of the standards, a T fitting connecting the sections of each standard inv axial alignment and having their angular openings in confronting relation, 3. cross tie for the standards comprising rod sections connected at their outer ends in the angular openings of said T fittings and provided with oppositely threaded inner ends, and a T fitting having the terminals of its strai ht way opening oppositely threaded for t readed reception of the threaded inner ends of said rod sections, pivotal attachin feet threaded upon the lower end of eac standard, a stay rod having one end threaded into the angular opening of the cross tie fitting, and a pivoted anchoring block threaded upon the lower end of the stay rod.

CYRIL L. DIETRIGH.

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