US1877024A

US1877024A - Welder's hood

Info

Publication number: US1877024A
Application number: US526723A
Authority: US
Inventors: John S Norton
Original assignee: WILLIAM F HOLLINGSWORTH
Current assignee: WILLIAM F HOLLINGSWORTH
Priority date: 1931-03-31
Filing date: 1931-03-31
Publication date: 1932-09-13
Anticipated expiration: 1949-09-13

Description

Sept' 13 1932- ,1. s. NORTON 1,877,024

WELDER S HOOD Filed March 31,' '1931 mow/arp Co.

ATTORNEYS.

is moved.

Patentedi Sept. 13, 1932" UNITE-D STATES" PATENT oFr-ICE JOHN S. NORTON, SAN' FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALF TO WIL- LIAM F. HOLLINGSWORTH, OF SAN FRANCISCO, CALIFORNIA Application led March 31, 1931. Serial No. 526,723.

My invention relates to improvements in welders hoods and it consists of the combinations, constructions and arrangements hereinafter described and claimed.

An object of my invention is to provide a Welders hood which has novel chin actuated means for moving the dark glass into inoperative position when the operator desires to view the wy :k through the clear protecting glass. The protecting glass is transparent and is removably secured to the hood, but remains in a. fixed position when the dark glass A'further object of my invention is to provide a device of the type described in which the dark glass is held in raised position by a novel catch mechanism and remains in this position until the chin actuated member is again depressed.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawing, forming a part of this application, in whic Figure 1 is a vertical section through the device;

Figure 2 is a front elevation of the device;

Figure 3 is a rear elevation;

Figure 4 is a sect'on along the line 44 of Fi ure 2; and

igure 5 is an enlarged view of the catch mechanism.

In carrying out my invention I maken use of a welders hood 1 having the usual headband 2 and an opening 3 in its front face 4.

A plate 5 is secured covers the opening 3. the plate 5 is shown in be seen from this gure that rivets 6 or other suitable fastening means secure the plate to the hood.

The plate 5 is provided with an opening 7 and carries an inwardly extending flange 8 that borders the-opening. An outwardly ex- A cross section through tending flange 9 extends around the opening 7 and has one side provided with a slot 10 (see Figure 4) for removably receiving a transparent protecting glass 11. Figure 2 v ment of the dark glass.

to the front face 4 and Figure 4 and it will.y

shows leaf springs 12 and 13 struck up from the inwardly extending portions 14 of the flange 9, the springs engaging with the glass 11 for holding it in position. rlhe spring 13 bears against the outer face of the glass while the spring 12 bearsagainst the edge ofthe glass. y f

The plate 5 is provided with guides 15 and these slidably receive a'frame 16 of ther shape shown in Figure 4. The' frame 16 carries a .dark glass 17 and this is held in place by leaf springs normal position the dark glass 17 covers the opening 7 and protects the eyes of the Welder.

The means for raising and lowering the dark glass 17 is shown in Figures 1 and 3. A link 19 is connected to the top of the 18. When the frame 16 is in frame 16 and in turn is connected t`o one end of a lever 20. The lever is pivoted at 21 and has its'other end connected to a slidey achin of the operator will through the mechanism just disclosed raise the frame -16 and move the dark glass 17 out of registration with the window 7. The clear glass 11 remains in the same position during the move- The operator can now see the work without the necessity of raising the clear glass. The mechanism for raising the colored glass is of less weight than that required in raising the dark glass and the clear one.

I provide a novel catch mechanism for holding the dark glass in raised position until the chin actuated member 27 is again depressed. `In Figures 3 and 5 I show a bar 28, U-shaped in cross section, pivotally secured to the carried by the plate 5 and bears against the edges 31 of the bar 28. A n L-shapedv guide 32 also carried by the plate 5 has a portion eX- tending over,the bar 28. During the upward movement of the frame 16 thebar 28 is raised and the catch 30 moves alongthe edges 31 until it registers with notches 33 in the two frame 16 at 29. A catch 30'is l most position.

opening, and a chin sides of the bar 28. A spring 34 secured to the bar 28 in the manner shown in Figure 5 moves against the L-shaped guide 32 and causes the catch 30 to be received in the notches 33 when the frame 16 is in its upper- The frame is held in this position until the operator again depresses the chin actuated member 27.

When the operator does depress the member 27 the bar 28 is raised still further and this causes the catch 30 to move out of the notches 33 and to engage with the lower end of a trigger 35. This trigger is pivoted to the bar at 36 and its upper end is normally in a position to uncover the notches 33. The catch Will swing the trigger 35 into a position Where the upper portion 37 of the trigger Will cover the notches 33.

A releasing of the chin actuated member 27 Will now permit the frame 16 to drop by gravity and this Will cause the catch 30 to strike the upper portion 37 of the trigger and this portion will act as a bridging member for causing the catch to move past the notches 33 and permit the frame 16 to move back into normal position. rllhe downward movement of the bar 28 is so rapid that the catch 30 Will strike the bridging portion 37 and Will be deflected out of the notches 33 even though the trigger 35 is only pivotally supported. During this movement the trigger 35- is swung into the position shown in Figure 3 and the notches33 Will be uncovered and ready for'the next operation of the device.

Although l have shown and described one embodiment of my invention it is to be un.- derstood that the same` is susceptible oit various changes and li reserve the right to employ such changes as may come Within `the scope of the claims hereto annexed..

li claim:

1. A Welders hood havingv an eye opening therein, a framed protecting glass movable vertically into and out of registration with the opening, and chin-actuated means connected to the top ijof vthe frame for lifting the glass out of registration.

2. A Welders hood having an eye opening therein, a framed protecting glass movable vertically into and out of registration with the opening, and chin-actuated means connected to the top of the frame for lifting the glass out of registration, said means comprising a link connected to the top of the frame, a lever pivoted to the hood and having one end connected to the link, a slide connected to the lever and extending along the side of the rest secured to the slide..

JHN S. NRTN.