US2105018A

US2105018A - Welding shield

Info

Publication number: US2105018A
Application number: US72351A
Authority: US
Inventors: Louis G Tatter
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-04-02
Filing date: 1936-04-02
Publication date: 1938-01-11
Anticipated expiration: 1955-01-11

Description

Jan. 11, 193s. L.. Q TATTER 2,105,018

WELDING SHIELD Filed April 2, 1956 Patented Jan. 1l, 1'938 l UNITED STATES PATENT OFFICE AppmioakAi-u'rtgshri '12,3511 16 claims. (ci. rs)

This invention relates to shields for use in seen that these two sections of colored glass are electric welding, for shielding the eyes against beveled at their edges 8, to t together as shown the glare of an electric arc, or for shielding the in Fig. 2 of the drawing, when the section 1 is in eyes against any other light, wherever such is its normal position. The colored glass 6 and 1 necessary or desirable in doing certain kinds of is practically of the kind ordinarily employed to 5 work. protect the eyes of the worker against the ultra- Generally stated, the object of the invention violet rays of the electric arc. The lower section is to provide a novel and improved construction 1 is iixed in a frame 9 that has a stem I0, which and arrangement whereby the windowl of the ylatter reciprocates up and down in the guide 10 shield, which is usually provided with colored bracket II, as shown more clearly in Fig. 2 of 10 glass ofv some kind, to protect the workmans the drawing, The stem in has a shoulder piece eyes against certain injurious rayscf the light, is I2 that normally bears against the upper end of so constructed that a narrow opening can be the bracket, and a coil spring I3 is interposed opened and closed at will, to provide unobscured between said shoulder and the lower end of the 1J vision when necessary or desirable, as in the bracket, on the stem, thereby to yieldingly hold starting of the welding or other operation, but the section 1 in its normally raised position, so which can be closed in time to shut oi the inthat the two sections 6 and 1 are nomally tight jurious rays, thereby to obviate the necessity of together at their beveled edges.V .The lower end moving the shield sidewise, in order to enable the of the stem I0 has a handle I4, preferably hook- I worker to unobstructedly view the work from time shaped, so that it can be pulled down by a nger 20 to time. of the hand in which the handle 2 is held, thereby It is also an'object to provide certain details to provide an opening between the edges 8 of the and features of construction and combinations colored glass, thus permitting a clear view tending to increase the general elciency and through this space and the

clear glass

4 and 6 the desirability of a shield of this particular of the work, from time to time. When the sec- 25 character. tion 1 is raised, the beveled joint between the To the foregoing and other useful ends, the upper edge of this section and the lower edge invention consists ln matters hereinafter set forth of section 6 vinsures against any leakage of the and claimed, and shown inl the accompanying dangerous light rays between them, and the drawing, in whichcolored glass is just as effective to keep out these 30 Fig. 1 is a perspective of an electric welding rays as though made only in one section. shield embodying the principles of the invention; In use, the handle 2 is held in one hand, while Fig. 2 is an enlarged vertical section of said the worker is using the other hand to hold or shield, on line 2 2 in Fig. 1 of the drawing; manipulate the electric welding machine, or Fig. 3 is a duplication of a portion of Fig. 2, something else, that ,is necessary in doing this 35 showing the parts in a different position; kind of work, depending upon the exact charac- Fig.'4 is a vertical section, on a smaller scale, ter of the welding apparatus being used. Beon line 4-4 in Fig. 2 of the drawing. fore the electric arc is formed, necessitating the As thus illustrated, the invention comprises a shielding of the eyes against the ultra-violet rays,

40 body of nbre or other suitable material I,vof suitthe worker needs to see the work, in order that 40 able form, forming the main or body portion of certain things may be done correctly, and for this the shield. .The lower edge oi the shield is propurpose the hook 4 may be pulled down, thereby vided with a handle 2, by which the shield is tovaiord a clear view of the work between the held in one hand, while the worker is holding or edges 8 of the two sections of colored glass. This i5 manipulating the electric welding machine inl-the obviates the necessity of moving the shield lfrom 45 other hand. one lside to the other, from time to time, when The front of the shield body is provided with a clear view of the work is necessary.` Before a rectangular framing 3, containing inner and turning on the current to produce the arc, the outer sections of

clear glass

4 and 5, as shown space between, the edges of theftwo sections of more clearly in Figs. 2 and 3 of the drawing. colored glass may be closed, so that the dangerous 50 'Between these two 'sections of clear glass, there light rays will not be able to penetrate when the is an upper section 6 of colored glass, held in arc is formed. Thus, the opening and closing of fixed position, and a lower section 1 of colored the clear view window, afforded between the two glass, adapted to move up and down between thev sections ofv colored glass, may alternate with the two sections 4 and 5of clear glass. It will be openingv and closing of the electric circuit. In 65 this way, the worker may alternately have protection against the ultra-violet rays, through the medium of the colored glass, and a clear and unobstructed view of the work, through practically one and the same window in the front of the shield, thus obviating the necessity of moving the shield to one side when a clear view of the work is desired.

It will be understood, of course, that the handle 2, instead of being held in the hand, may be supported on a stationary support, or on something supported by the head or shoulders of the worker. On the other hand, the handle 2 may be omitted, and the shield may be supported in some other manner, so that the worker will be left free to use both hands on the work being done. In such case, the invention is of special value, as it obviates the necessity of removing the shield from in front of the face of the worker, in order that the latter may have a clear view of the work irom time to time, when the circuit is open and the electric are is not at work.

It will also be understood that any suitable or desired means can be employed for controlling the sliding movement of the section l. of colored glass. As shown, such means are manually operable by the hand, but it is obvious that this can be done by other things, including foot-control, and particularly so in connection with a shield of this kind that is supported on the head or shoulders of the worker, or on some stationary support that is not held in the hand.

As with the ordinary shield, when the worker looks through the window formed by the sections of glass, some things are barely visible through the colored glass, when the edges 8 are tight together, suiiiciently so to enable the worker to do the desired work. But, when the edges 8 are separated, there is then complete visibility through the space formed, in a manner necessary for certain steps in the work.

It will be seen, therefore, that the section 6 of colored or shaded glass is stationary, as it is xed in position in the window, and hence this section is always in position for vision therethrough regardless of whether the section 'I is down or in normal position. When the section I is down a distance to provide an area of `clear vision, a slight relative movement as between the head and the shield body I is sucient to instantly bring the line of vision through the stationary section 6, if such is desired. The spring I3, it will be seen, is capable of moving and maintaining the section 'I in normal position, and in this way the clear vision area cannot accidentally be left open. When the section I is up in normal position, with the beveled edges 8 tight together, there is an ample area of protected vision, practically throughout the area of the window. However, even if this section I is clear down, even lower than the position shown in Fig. '7, there is still the area of protected vision provided by the section E, as the latteris stationary or xed in position in the upper portion of the window.

It will be seen that the housing I5, on the front of the shield I, contains the rod and the spring I3 for operating the movable glass 'I, in the manner described. This housing I5 extends vdownwardly from the bottom of the framing 3 dangerous or injurious rays of an electric arc,- as in electric welding, comprising means forming the body of the shield, means forming a framed window in the front of said body, having colored or shaded glass to protect the eyes against said rays, movable means for producing a clear vision area in said window, of variable height and xed horizontal length from one side of the window to the other, between the upper and lower edges of said window, causing a variable area of shaded glass between the upper and lower edges of the window, as well as a variable area of clear vision, and enclosed spring means entirely external of said body and carried by the latter below the middle of said window, capable of moving and maintaining said movable means in normal position, together with means outside said body and operable for overcoming the tension of said spring means, when said clear area. is desired.

2. As an article of manufacture, a face shield for protecting the eyes, comprising means forming the body of the shield, means forming a framed window inthe front of said body, having a stationary section of colored or shaded glass xed in position against displacement in said window to protect the eyes against injurious light rays, and movable means whereby a variable clear vision area may be formed in said window at will, below one horizontal edge of said stationary section, between the upper and lower edges of said window, unobstructed by any colored or shaded glass, and without disturbing said shaded glass; causing the window to have a variable area of clear vision.

3. A structure as specified in claim 2, including spring means external of said body and carried by the latter below the middle of the window, capable of moving and maintaining said movable means in normal position, keeping said area normally closed.

4. A structure as specified in claim 2, said movable means comprising a section movable in the plane of said stationary section, below the latter, so that the lower edge of the stationary section normally engages the upper edge of the movable section, keeping said area normally closed, together with enclosed spring means entirely below the window and external of said body, capable of moving and maintaining saidl movable section in normal position.

5. A structure as specified in claim 2, comprising enclosed spring means entirely external of said body and carried by the latter below the middle of said window, capable of moving and maintaining said movable means in normal position, keeping said area normally closed, and manually operable means for overcoming the tension of said spring to produce said clear vision area.

6. A structure as specified in claim 2, comprising inner and outer sections of clear glass in fixed position in said window, spaced apart with their lower edges free to accommodate said stationary section and movable means between them, with said means movable up and down between the lower edges of said clear glass.

'7. A structure as specified in claim 2, comprising a downwardly extending rod for said movable means, with a guide for the rod, and

enclosed spring means entirely external of said l 8. As an article of manufacture, a face shield for protecting the eyes, comprising means forming the body of the shield, means forming a framed window in front of said body, having a stationary section of colored or shaded glass'xed in position against displacement in said window to protect the eyes against injurious light rays, and movable means whereby a variable clear vision area may be formed in said window at Will, along one horizontal edge of said shaded section, substantially midway between the upper and lower edges of'said window, unobstructed by any colored or shaded glass, and without disturbing said shaded glass, causing the window to have a variable area of shaded glass, said movable means comprising a section of colored or shaded glass movable in the plane of said stationary section, the two sections having normally engaging horizontal edges, which latter are separable to provide said variable area of clear vision.

9. As an article of manufacture, a face shield for protecting the eyes, comprising means forming the body of the shield, means forming a framed window in front of said body, having a stationary section of colored or shaded glass fixed in position against displacement in said window to protect the eyes against injurious light rays, and movable means whereby a variable clear vision area may be formed in said window at will, along one horizontal edge of said shaded section, substantially midway between the upper and lower edges of said window, unobstructed by any colored or shaded glass, and without disturbing said shaded glass, causing the window to have a variable area of shaded glass, said section of colored or shaded glass having a beveled edge, and said movable means having a beveled edge normally iitting` said rst-mentioned beveled edge, to prevent leakage of the injurious light rays between said edges in the normal condition of said window.

10. As an article of manufacture, a face shield for protecting the eyes, comprising means forming the body of the shield, means forming a framed window in front of said body, having a stationary section of colored or shaded glass fixed in position against displacement in said window to protect the eyes against injurious light rays,

and movable means whereby a variable clear vision area may be formed in said window at will, along one edge of said shaded section, substantially at the middle of said window, unobstructed by any colored or shaded glass, and without disturbing said shaded glass, causing the window to have a variable area of shaded glass, said movable means comprising a section of colored or shaded glass movable in the plane of said stationary section, so that the edge of the stationary section normally engages the edge of the movable section, keeping said area normally closed.

11. A structure as specied in claim 2, said movable means comprising a section of colored or shaded glass movable in the plane of said stationary section, the two sections having normally engaging edges, which latter are separable to provide said variable area of clear vision.

12. A structure as specified in claim 2, said section of colored or shaded glass having a beveled edge, and said movable means having a beveled edge normally tting said rst-mentioned beveled edge, to prevent leakage of the injurious light rays between said edges in the normal condition of said window.

13. A structure as specified in claim 2, said movable means comprising a section of colored or shaded glass movable in the plane of said stationary section, below the latter, so that the lower edge of the stationary section normally engages the upper edge of the movable section, keeping said area normally closed.

14. lA welding shield comprising `a window for the front of the shield, having a metal framing projecting from the said front, with movable shaded glass inside thereof, a housing on said front, extending downward from the bottom of said framing, and means inside said housing to operate said movable glass.

15. A structure as specified in claim 14, said operating means comprising a rod extending downward from said movable glass, a guide for said rod, and a spring on said rod to move the glass upward to normal position.

16. A structure as specified in claim 14, and a spring inside said housing to move said glass upward to normal position.

LOUIS G. TATTER.