US 4,785,954 AGranted

Welding maskholder

OwnerEdward K. Liinventor

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Abstract

A special welding apparatus comprises welding pliers and a head shield, which may be attached together by means of an engaging groove, a pressure ball, a fixed ring, a fixed hook and a hook seat, or may be separated from each other. The colored goggle assembly has a sliding mechanism; when a key on the handle of the head shield is pressed down, the colored goggle will slide away from the window, and when the key is released, the colored goggle will be moved back over the window.

Claims3

Dependent claims

A welding head shield and welding rod pliers characterized in that said shield and said pliers can be combined into one unit, and said pliers and said shield can also be separated from each other as discrete units;

said head shield comprising
a shield body with a window opening formation;
a transparent window pane in said window opening formation;
a shield handle operatively connected at said shield body;
a hook seat secured at said shield handle;
a pressure ball seated at said shield handle;
a spring located at said shield handle to bias said pressure ball into a lock position, and said spring being adapted to be compressed to allow release of said pressure ball from the lock position into a neutral position;
a welding rod pliers with a pair of plier jaws for operatively securing a welding rod therebetween, said pliers also including a pliers handle with an engaging groove formation, said pliers also including a lever handle connected at least at one pliers jaw for actuation of said pliers, and said pliers jaws each having a zigzag profile surface;
a fixed hook at said pliers adapted to be connected at said hook seat for securing said pliers at said head shield;
a fixed ring for securing said shield handle and said plier handle at conterminous ends thereof;
a protective layer on said pliers jaws;
a conductor connected to said jaws;
at least one pivot shaft for said jaws;
and
a control mechanism for selectively covering and uncovering said transparent window pane, said control mechanism including
a rod seat secured at said shield handle;
a rod, said rod having a first end and a second end, with said first end being connected at said rod seat;
p1 a window control key reciprocatingly movable arranged on said rod and adapted to be moved between a first position in which said window pane is covered and a second position in which said window pane in uncovered;
a plurality of movable balls for guiding said window control key during its movement on said rod;
a pulley connected at the second end of said rod;
at least one colored goggle pane slidingly arranged at said head shield body for covering and uncovering said window pane in said shield body;
a frame connected at said goggle pane, said frame having guide formations for respective slide rods;
a pair of goggle slide rods for guiding said goggle frame when moving said colored pane for covering and uncovering said transparent window pane;
for each slide rod, a spring adapted to bias said goggle frame;
a steel cord connected with one end to said goggle frame and connected with its other end to said control key;
wherein upon said control key being moved along said rod, said steel cord pulling said frame and said colored goggle into the uncovering position along said goggle slide rods against the tension of respective spring at a respective slide rod, said transparent window pane is uncovered and a welder can see the work piece through said transparent window pane under full protection of his eyes and face;
and
wherein upon said control key being released, said colored goggle is moved to cover said transparent window pane in response to the action of a respective spring at a respective slide rod, and the welder can see the welding portion and the welding rod flame without being injured by the welding flame.

25 more elements

Dependencies are inferred from the claim text.

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Abstract

said head shield comprising
a shield body with a window opening formation;
a transparent window pane in said window opening formation;
a shield handle operatively connected at said shield body;
a hook seat secured at said shield handle;
a pressure ball seated at said shield handle;
a spring located at said shield handle to bias said pressure ball into a lock position, and said spring being adapted to be compressed to allow release of said pressure ball from the lock position into a neutral position;
a welding rod pliers with a pair of plier jaws for operatively securing a welding rod therebetween, said pliers also including a pliers handle with an engaging groove formation, said pliers also including a lever handle connected at least at one pliers jaw for actuation of said pliers, and said pliers jaws each having a zigzag profile surface;
a fixed hook at said pliers adapted to be connected at said hook seat for securing said pliers at said head shield;
a fixed ring for securing said shield handle and said plier handle at conterminous ends thereof;
a protective layer on said pliers jaws;
a conductor connected to said jaws;
at least one pivot shaft for said jaws;
and
a control mechanism for selectively covering and uncovering said transparent window pane, said control mechanism including
a rod seat secured at said shield handle;
a rod, said rod having a first end and a second end, with said first end being connected at said rod seat;
p1 a window control key reciprocatingly movable arranged on said rod and adapted to be moved between a first position in which said window pane is covered and a second position in which said window pane in uncovered;
a plurality of movable balls for guiding said window control key during its movement on said rod;
a pulley connected at the second end of said rod;
at least one colored goggle pane slidingly arranged at said head shield body for covering and uncovering said window pane in said shield body;
a frame connected at said goggle pane, said frame having guide formations for respective slide rods;
a pair of goggle slide rods for guiding said goggle frame when moving said colored pane for covering and uncovering said transparent window pane;
for each slide rod, a spring adapted to bias said goggle frame;
a steel cord connected with one end to said goggle frame and connected with its other end to said control key;
wherein upon said control key being moved along said rod, said steel cord pulling said frame and said colored goggle into the uncovering position along said goggle slide rods against the tension of respective spring at a respective slide rod, said transparent window pane is uncovered and a welder can see the work piece through said transparent window pane under full protection of his eyes and face;
and
wherein upon said control key being released, said colored goggle is moved to cover said transparent window pane in response to the action of a respective spring at a respective slide rod, and the welder can see the welding portion and the welding rod flame without being injured by the welding flame.

25 more elements