US1971332A

US1971332A - Fan protector

Info

Publication number: US1971332A
Application number: US623169A
Authority: US
Inventors: Emma K Cook
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-07-18
Filing date: 1932-07-18
Publication date: 1934-08-28
Anticipated expiration: 1951-08-28

Description

Aug. 28, 1934. E K OCK 1,971,332

FAN PROTECTOR Filed July 18, 1932 Patented Aug. 28, 1934 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to fan protectors and more particularly to a further development and improvement in the fan protector described by me in patents granted to me on the 25th day of March, 1930, #1,751,793, and also the 9th day of June, 1931, #1,809,583.

The object of the present invention is to provide a more durable and convenient structure that can bemanufactured at a lower cost and may be more easily attached to and detached from fans already in the hands of users.

Other objects and advantages of this invention will be disclosed in the specification claims and drawing, in which:

Fig. l is a side elevation of a fan equipped with my protector.

Fig. 2 is a front elevation of a fan equipped with my protector.

Fig. 3 is a view of the rear portion of my protector, showing the manner of locking the protector on the frame of a fan.

Fig. 4 is a view of the rear portion of my guard in expanded position.

Fig. 5 is an enlarged detail view of the locking mechanism.

Fig. 6 is an enlarged detail view of a portion of the rear portion of my protector locked in position. I

Fig. '7 is a section along the line 7--7 in Fig. 5.

Fig. 8 is a view of the locking wedge.

The body of the protector is preferably made of wire mesh cloth 1 or other suitably foraminated material bound about its peripheral edges, by metal stripping 2 folded over the edge of the wire mesh, as best shown in Fig. 6 at 3, wherein the outer fold a is folded against the fold 5 and the third fold 6 is clamped down tightly against the wire mesh 1.

The outer fold 4 extends outwardly from the rear edge 7 of the main body portion of the protector and is bent so as to form a groove about the periphery of the protector for the purpose of receiving the flexible rear portion 8, which, by means of the opening 9 is capable of being contracted in order to fit into the groove 7 and then expanded by means of a wedge-shaped locking piece 10 which is forced radially inward in the guideways formed under the folds 11 formed by folding the metal over the edges of the wire mesh 1, as best shown in Figs. 5 and '7.

The front and sides of the protector are preferably rigidly joined together by means of metal stripping 13, and the protector may then be placed over the front of a fan, the rear portion of the protector 8 then contracted as above explained and fitted into the groove 7, and then expanded by inserting the wedge piece 10, thus holding it firmly in position and at the same time making it easy to remove the protector for cleaning the fan, etc.

It is obvious that under this method of construction a neat and attractive protector is provided.

Having fully described my invention, what I claim as new and useful and desire to protect by Letters Patent is:

marginal edges bound with metal stripping, said metal binding extending rearwardly and projecting beyond the wire mesh cloth thereby to provide a groove peripherally disposed about the marginal edge of said projecting member adapted to receive the marginal edge of a contractable and expansible member, an expansible and contracta'ble rear member adapted to be contracted and expanded into and out of said groove and wedge means for holding said rear member in said groove.

2. A fan protector of the kind described, comprising a front member of wire mesh; a cylindrical side wall member of wire mesh and having its front peripheral edge bound with a sheet metal stripping enclosing and binding the peripheral edge of said front member to interlock the two in fixed relation; a metal binding enclosing the rear peripheral edge of said side wall member and projecting rearwardly to overhang the wire mesh of the same and provided with an internal peripherally extending groove; a rear closure plate member adapted to be positioned in the plane of said groove and having its ends spaced apart so that said member may be radially expanded or contracted; and a Wedge adjustably movable in the space between the ends of said rear plate for expanding the latter firmly into said groove.

EMMA K. COOK.