US2050939A

US2050939A - Welder's shield

Info

Publication number: US2050939A
Application number: US35376A
Authority: US
Inventors: Howard W Fairfield
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-08-08
Filing date: 1935-08-08
Publication date: 1936-08-11
Anticipated expiration: 1953-08-11

Description

3 Sheets-Sheet l Aug. 11, 1936. H. w. FAIRFIELD WELDERS SHIELD Filed Aug'. 8, 1935 haw m wlillilliiili I u v u u v, z rm u -L \llrll.llllr1 m III IIJII l l. a w H W 1 W mu Aug. 11, 1936. H. w. FAiRFIELD WELDER S SHIELD 3 Sheets-Sheet 2 Filed Aug. 8, 1935 I nvantm Aug. 11, 1936. H. w. FAIRFIELD I 2,050,939

WELDER S SHIELD Filed Aug. 8, 1935 5 Sheets-Sheet 5 Patented Aug. 11, 1936 UNITED STATES 2 Claims.

This invention appertains to newand useful improvements in a shield especially adapted to be worn by welders.

The principal object of the present invention 5 is to provide a shield wherein the usual quartz window is conveniently slidable to permit unobstructed vision through the shield when a welding operation is not taking place.

Another. importantobject of the invention is to provide a welders shield wherein the usual protective, glass window" is adjustable to permit the same to be disposed in protective or inoperative position through the use of only one hand of the welder.

These various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a front elevational view of the Shield.

Figure 2 represents a side elevational view of the shield.

Figures 3 represents a vertical sectional view taken substantially on the line 3-3 of Figure 2.

Figure 4 represents a vertical sectional view taken substantially on line 4-4 of Figure 3.

Figure 5 represents a horizontal sectional view taken substantially on line 5-5 of Figure 1, this view being fragmentary.

Figure 6 represents an enlarged fragmentary detailed vertical section showing the quartz window in lowered or unobstructed position and further showing the clear glass window sprung out in dotted lines.

Figure 7 represents a sectional view taken substantially on line 1-1 of Figure 3.

Figure 8 represents a fragmentary detailed sectional view taken substantially on line 8-8 of Figure 1.

Figure 9 represents a fragmentary detailed sectional view taken substantially on line 9-9 of Figure 1.

Figure 10 represents an inside elevational view of the quartz window frame.

Figure 11 represents a perspective view of the slot closure.

Referring to the drawings wherein like numerals designate like parts, it can be seen that the mask portion of the shield consists of a front wall 5, side walls 6-6 and an inclined top wall 1. Attached to the side walls 6-6 and the top wall I is the hood 8 for protecting the top and sides of the welders head. Numeral 9 represents a head structure suitably connected to the sidewalls 6-6 and being equipped with an'adjustable buckle l0.

Spanning the distance between the lower portions of the side wall 6-6 is the longitudinally curved chin bar ll, convexed' on its rear side 5 and provided with seat portions l2. at its ends forattachment to the said side walls 6-6; An apron l3 dependsfrom the lower portion of the front wall 5 to protect the neck and upper chest portion of the welder. 10'

The front wall 5 is provided. with the sight opening it which at the front of the wall 5 is closed by the clear glass window l5 and at the rear side of the wall 5 this opening I4 is closed by the quartz window l6, the latter serving the 15 well known purpose of eliminating ultra-violet rays emanating from the welding arc.

The clear glass window E5 is mounted in a frame I l, the frame being provided with a pocket therein for receiving the glass l5. Strip springs l8 are employed and secured to the front side of the wall 5 and connect to the frame IT in such a manner as to hold the frame snugly against the front side of the wall 5. Obviously the frame I! can be sprung out to the dotted 25 line position shown in Figure 6 for easy replacement of the glass l5, which is necessary quite frequently.

A guide for the frame I9 of the quartz window I 6 is provided on the inner side of the wall 5 30 and consists of the vertical guide members 20-20 bridged at their upper ends by the cross member 2|, this cross member acting as a stop and being located immediately above the opening I 3. As is clearly shown in Figure 10, the 35 ends and top edges of the frame H] are provided with tongues 22 which engage into the grooves of the guide members 26-26 and the cross member 2i. Obviously, with the tongues 22 engaged in the grooves 23 the frame l9 rides 40 against the inner side of the wall 5 and can be conveniently adjusted either to the useful position shown in Figure 3 or the inoperative position shown in Figure 6.

One side wall 6 of the mask is provided with 45 a vertically extending slot 24 through which the outer end portion of the hand lever 25 extends, the inner end of this lever 25 being pivotally connected as at 25a to the inner side of the wall 5, as can be clearly seen in Figure 3. One side 50 wall is provided with a vertically extending guideway 26a in which the plate 26 is slidable. This plate 26 is provided with a short slot 21 therein through which the outer end of the lever 25 extends. Obviously when the lever 25 55 is actuated the plate 26 will respond and always keep the slot 24 closed.

As is clearly shown in Figure 10, the frame I9 is provided with a depending lug 28 to which the upper end of the link 29 is connected. The lower end of this link 29 pivotally connects to the rocker 30 at one end thereof while the other end of the rocker is pivotally connected to the lower end of the connecting rod 3|, the rocker having its fulcrum point at 300.. The upper end of the connecting rod is pivotally connected as at 32, to the intermediate portion of the hand lever 25.

It can now be seen, that when the hand lever 25 is moved downwardly, the window I6 is elevated to the closed position shown in Figure 3. When a reverse movement of the lever 25 is executed, the window 16 is lowered tothe un-' useful position shown in Figure 6. 1

As is clearly shown in Figure 3, the window Hi can be conveniently removed from the guide 20 and by examining Figure 6, it canbe seen that the glass i5 can readily be renewed in the frame H by simply pulling the frame out to substantially the position shown in Figure 6.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing.

from the spirit and scope of the invention as claimed hereinafter.

What I claim is:

1. A welders shield comprising a face mask having a sight opening therein, and a slidable dark glass window adjustable over and away from the said opening, said slidable window provided with a hand lever for operating the window, said hand lever being adapted to project through a slot in the side of the mask, said mask being provided with a guideway in the side thereof, a plate slidable in the said guideway and having an opening therein through which the said hand lever extends, said plate serving as a closure for the slot in the mask through 2 which the hand lever extends.

2. A-welders shield comprising a mask having a sight opening therein, a glass window displaceable from the sight opening, strip springs each connected at one end to the mask and at its opposite end to the window for supporting the window in front of the said sight opening, said glass window including a frame and a pane, said frame being'provided with an inwardlydisposed flange at its front side against which a pane can engage, the rear side of the frame being open to freely receive the pane, said spring being adapted to urge the rear side of the frame against the mask with the pane held across the sight opening, and directly interposed between the flange of the'frame and the front side of the mask.

HOWARD W. FAIRFIELD.