US1930181A

US1930181A - Theftroof fan mounting bracket

Info

Publication number: US1930181A
Application number: US461009A
Authority: US
Inventors: Peters Henry Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-06-13
Filing date: 1930-06-13
Publication date: 1933-10-10
Anticipated expiration: 1950-10-10

Description

Oct. 10, 1933. H. F. PETERS THEFTPROOF FAN MOUNTING BRACKET Original Filed June 13, I930 EE-irul/ Patented Oct. 10, 1933 Henry Frank Pcters,'Washiii'gton, D. C.

Applieationllune is, 1930, Serial No. 461,009

' Renew-ed March 1, 1933 1 Claim. (Cl. Mid-20) This invention relates to devices for attaching electrical fans to walls or other surfaces so that they may be proof against unauthorized or surreptitious removal.

In the carrying out of my inventive purpose, I prefer to employ a wall plate or member designed to be attached by suitable fastenings, such as screws, to a wall or other surface to which the fan is to be secured. I also prefer to provide 3. fan plate or member designed to be attached to the base of the fan, and to so construct the two plates or members that they will cooperatetogether in such manner as to conceal both sets of fastenings so that they may not be removed while the two plates or members are in operative posi tion; and finally I prefer to secure the two plates together in a simple and effective manner so that they may not be separated exceptby one familiar with the construction and equipped with the necessary key or wrench by means of which the two plates may be unlocked from each other.

The accompanying drawing illustrates one example of a preferred construction of the device,

in which:

Fig. 1 is a side elevation illustrating the device in operative position with the base portion of a electric fan shown in dotted lines;

Fig. 2 is a front elevation ofthe fan plate or member; r

Fig. 3 is a front elevation of the wall plate or member;

Fig. 4 is a vertical transverse sectional view taken through the device, and

Fig. 5 is a fragmentary horizontal sectional liew taken on line 5-5 of Fig. 1.

Like numerals of reference indicate the same parts throughout the several figures, in which (1) indicates the device which includes the fan plate or member (2) and the wall plate or member (3).

The former of these is preferably circular in plan and has a narrow rim portion (4), and a central raised portion (5), the two portions forming an annular wall (6).

Formed in the central raised portion (4) are series of perforations ('7) of a number corresponding to and complemental with the number of fastening perforations in the base of the fan to be accommodated bythis fixture. At preferably diametrically opposed points on the periphcry of this rim portion (4) are two recesses (8) arranged in a horizontal plane.

Referring now to the wall plate or member (3), it will be seen from Fig. 3 that the same is also preferably circular in plan and has a fiat central portion (9) suitably perforated at (10) to receive 'riphery of the fan plate or member (2) openings (15) are threaded to receive suitable fastenings (16), such as Allen set screws.

suitable fastenings (11) Fig. 4 by means of which this plate or member (3) may be secured to a wall or other surface.

It will also be seen that substantially the lower half of the wall plate or member (3) is provided with a substantially semi-circular flange (12) l lying parallel with the face (9) of the plate or member (3) but spaced apart therefrom in order to provide a substantially semi-circular recess or chamber (13) It will also be seen that the web (14) which connects the edge of the plate or member (3) with the said flange (12) is pierced at preferably diametrically opposite points which are complemental to the recesses (8) in the pe- These Any other type of suitable fastenings may be employed wherein a special wrench or key is necessary in order to remove or loosen the same.

Having thus described the several parts of the preferred embodiment of my invention, its operation is as follows: 1 I

The two plates or members (2) and (3) may be made of any suitable material as by casting, ma-

chining or otherwise. a

At the location at which the fan is to be established, the wall plate ormember (3) is securely fastened, as by screws (11) or the'like passed through the screw holes (10) in the plate or member (3). The plate or member is thus se-" curely fastened in the desired position. The base of the fan is then fastened to the fan plate or section (2) by any suitable .fastenings as for instance by round head machine or other bolts (17) passed through theopenings ('7) in the fan plate or section (2) and secured by nuts (18) against the rear face of the fan plate or section (2). i

When the fan has thus been fastened to its plate or section (2), said plate or section'being'" of a diameter less than that of. the wall plate or section (3) and which substantially conforms to the curvature of the semi-circular recess (13) formed on the lower portion of the wall plate or section (3), the fan plate or section (2) with fan attached is passed over the face (9) of the wall plate or section (3) until the rim portion (4) of the fan plate or section (2) enters said substantially semi-circular recess on the wall plate or section (3) as shown in Fig. 4. When the two plates (2) and (3) are in this position, the fastenings (16) are threaded into their holes (15) until their ends enter within the recesses (8) in the periphery of the fan plate or member (2).

These fastenings being set as firmly as possible, the ends of the same may be covered with any plastic material (19) suitable for the purpose, as shown in Fig. 5. By this means the fastenings as well as their holes may be concealed, and when painted over can not be detected.

A fan so mounted is in no danger of surreptitious removal. It may be removed, however, by removing the plastic material (19) and withdrawing the fastenings (16) by one familiar with the fixture and equipped with the proper wrench or key for operating the locking fastenings (l6) Having thus fully described the invention and reptitious removal, including a wall plate or member having means to receive fastenings for attaching the plate or member to a wall or other surface, and including a substantially semi-circular flange spaced apart from the face of the wall plate or member to form a substantially semicircular recess, a fan plate or member including a rim portion and a raised central portion, the latter having means to receive fastenings for attaching the plate or member to the base of an electric fan, the said rim portion being provided with a plurality of recesses and a plurality of fastenings in the wall plate or member adapted to enter the said recesses in the fan plate or member to lock the said two plates or members together.

HENRY FRANK PETERS.