US2307524A - Protector for rotary work - Google Patents

Description

Jan. 5, 1943.

R. MALCOM 2,307,524

PROTECTOR FOR ROTARY WORK Filed Sept. 14, 1940- 2 Sheets-Sheet 1 Jan. 5, 1943. R. MALCOM 2,307,524

PROTECTOR FOR ROTARY WORK Filed Sept. 14, 1940 2 Sheets-Sheet 2 Q I IIIII'I v7 'RoberZMalcom;

Patented Jan. 5, 1943 E PROTECTOR FOR ROTARY WORK Robert Malcom, Chicago, Ill.

Application September 14, 1940, Serial No. 356,887v

3 Claims.

This invention relates to protectors to shield the face, body, and hands of an operator from particles thrown off from and whirled by rotating machines and parts thereof.

The protector is intended particularly to prevent injury to an operator engaged in machine winding of coils, armatures, and similar parts when a wire breaks and is swung rapidly until the winder is stopped. Winders used in production of such parts sometimes are driven up to 4,000 revolutions and Over a minute, and it is desirable that the operator be protected from injury when there is wire breakage.

Although the protector of the invention is intended especially for use in association with such winding machines, it is not limited thereto, as it may be used also with other rotary machines that throw off or swing matter or parts apt to injure employees.

It is an object of the invention to provide a protector for the purposes stated that readily may be fixed in association with a rotating machine, that afiords shields at the front and sides, that easily is swung to and from protecting position, and that is adjustable both as to height above a base and with respect to its protecting position.

When considered with the description herein, characteristics of the invention are apparent in the drawings, forming part hereof, wherein an adaptation is exemplified for purpose of illustration.

Like reference-characters refer to corresponding parts in the views of the drawings, of which- Fig. l is a side view;

Fig. 2 is a front view;

Fig. 3 is a side view showing the frame held in raised out-of-the-way position;

Fig. 4 is a section on the line 4-4, Fig. 2;

Fig. 5 is a section on the line 55, Fig. l.

' The device includes substantially vertical posts 6. The posts preferably are of hollow cylindrical form, such a pipes, with their lower ends threaded and turned into plates 1, the latter being fixed to a table or other base A in association with the machine part from which protection is required. The upper end portions of the posts are threaded, as shown at 8, and caps 9 are on the upper ends of the posts.

A pair of nuts [0 on the upper threaded portion of each post clamp between them a nor mally horizontal cross member I I, through which the posts extend. The height of this member above the base may be adjusted by turning the nuts. The member H preferably is of sheet metal with its longitudinal margins turned downwardly as strengthening ribs l2.

A frame is swingably mounted on the member -II by any suitablemeans as by hinges it. The frame, which preferably is rectangular, includes a rear member l4, towhich the hinges or other suitable connections with the cross member ll are associated, a. front member I5, and side members It. The frame members preferably are made of sheet metal bent to afford substantially parallel opposed webs l1 providing channels or grooves that hold a transparent sheet l8 of glass or other suitable material. The rear and side frame members are permanently connected at corners as by welding or brazing. The "front frame member l5 removably fits at its ends into the channels of the side frame members l6, and therein it is held by bolts ill or other suitable removable fasteners. This arrangement is to permit removal of the frame member I5 when the transparent sheet is being placed in and removed from the frame.

The front frame member l5 carries depending opposed flanges 20, between which. the upper edge of a curtain 2| of textile or other suitable material is secured by rivets 22 or other suitable fasteners.

Each of the side members N5 of the frame carries a sector-shaped guard wing 23, preferably of sheet metal, and having at one of its straight edges a flange 24 by which it is secured to the frame member in any suitable manner as by welding or brazing. Each of the wings has a series of holes 25 adjacent to its arcuate edge. A bolt 26 may be disposed in any of these holes to secure a stop 21 to the wing. These stops contact with the posts 6 to limit downward movement of the frame.

A rod 28, having a hook 29 at its upper end, is

'slidable in one of the posts 6. When it is desired to have the glass-carrying frame away from in front of the work, it is raised, the rod 28 is pulled upwardly and then permitted to recede until the hook engages the front frame member and holds the frame in an out-of-the-way position.

One of the posts 6 carries a socket 30 and an electric lamp 3| below and adjacent to the cross member II to afford illumination to the work behind the protector. Supply wires 30 of the lamp lead through the post and base.

When the device is in protective position, the transparent sheet I8 is held in proper position between the work and the operator by the stops 21 in contact with the posts 6. That sheet keeps from the face of the operator particles thrown off from and matter whirling on rotary work, and similarly the curtain 2| protects the operator. Proximity of the transparent sheet and curtain to the work may be altered by moving each of the stops 2'! from one hole 25 to another.

I claim:

1. A protector of the class described comprising upright posts adapted to be mounted on a base, a frame swingable on a substantially horizontal axis carried by said posts, a transparent sheet carried by said frame, means to limit downward movement of said frame, a rod slidable on one of said posts, and a hook on said rod engageable with said frame to hold it in upward position. v a

2. A protector of the class described comprising upright posts adapted to be mounted 'on a base and having threaded upper end portions, across member through which said posts extend, nuts turnable on said posts clamping against opposite sides of said member, a frame swingably mounted on said member, a transparentsheet carried by said frame, side wings depending from said frame, a stop'on one" of said wings contactable with one of said posts to limit downward movement of said frame, a rod slidable in one ofsaid posts, and a hook on said rod engageable with said frame to hold it in upward position.

3. A protector of the class described comprising upright posts adapted to be mounted on a base and having threaded upper end portions, a cross member through which said posts extend, nuts turnable on the threaded portions of said posts clamping against opposite sides of said member, a frame swingably mounted on said cross member, said frame including front, rear, and side channel members, ends of said front frame member being disposed normally in channels of said side frame members, removable fasteners normally holding said front frame member in place,

a transparent sheet carried by said frame members, a flange on said front frame member, a curtain secured to and depending from said flange, side guard wings carried by and depending from said side frame members, a stop on one of said wings contactable with one of said posts to limit downward movement of said frame, a rod slidable in one of said posts, and a hook on said rod engageable with said frame to hold it in up ward position. 3

ROBERT MALCOM.

Images