US2410256A - Welders' helmet - Google Patents

Description

Oct 29, 1946.1 M,N..A'NDERSON Em. 2,410,256

WELDERS HELMET Filed Jly 2e, 194s Patented Oct. 29, 1946 UNITED STATES PATENT OFFICE s s f WELDERSl HELMET Marshall N.l Anderson and'Melvin H..Sellstro'm, "Chicago, Ill., 'assignors to Sellstrom Manufacturing Company, Chicago, Ill., a corporation of Iliinois Application July 26, 1943, Serial No. 496,106

s claims. (c1. 2 8) Our invention relates to Welders helmets.

In operations involving welding, and in similar operations, it is 'at times important to proteot the faceand eyes. At times protection of the eyes only is required, while at other times it is necessary that the entire face be'protected. In welding, the change of conditions from those requiring completeiace protection to those requiring eye protection only may occur frequently and at short intervals and for comparatively brief periods. As one hand of the operator is generally occupied in holding a torch or other implement, it is desirable that means `be provided whereby the change from completelfaceshielding to eye shielding only, and vice versa, may be accomplished quickly and conveniently by the use of one hand only,

` One of the objects of our invention is to provide a welders helmet'in which thisk change may be accomplished easily and quickly by the use oi one hand only. y y

A further object of our invention is to provide a welders helmet having a face mask and an auxiliary eye shield in which the movementy of the face mask from shielding position to non- Vshielding position will automatically cause the eye shield to move from nonshielding to eye shielding position.

A further object of our invention is to provide an improvedadjustable-eye shield for. use in a welders mask.

Further objects and advantages of the invention will be apparent from the description and claims.

In the drawing, in which an embodiment of our invention is shown, y

Figure 1 is a side viewof a welders helmet, part elevational and part sectional, the section being substantially on the line I-,I of Fig..2; y

Fig. 2 is a vertical sectional view, substantially on the line 2-2 of Fig. 1;

Fig. 3 is a detail plan viewv'on a smaller scale showingthe mounting for the eye shield; and

Fig. 4 is a vertical sectional view substantially on the line 4 4 of Fig. 3.

The construction shown in the drawing comprises a'headbandY or harness I, a face mask 2 pivotally carried thereby and movable from face shielding position A to a position B above the face, an eye shield 3 pivotally vcarried by said band and movable from eye shielding position C to a position D above the eyes, and transmission between said mask 2 and eye shield 3 whereby, when the harness is in place on the head,- motion of the mask from shielding position A to nonshielding position B above Lthe facewill move thel eye shield from nonshielding 'position ,D to shielding position C, and whereby motion of the mask from non-shielding position B to shielding position A will'move the eye shield from shielding position C to nonshielding position D above the eyes. The mask may, in general, be of the construction disclosed in the patent to yAnderson No. 2,270,028. i

The maskz is pivotally mounted on the headband I by means of a pair of pivot bolts or screws 4, nonrotatably secured to the mask and rotatable in bearing brackets orstraps 5 secured to opposite sides of the headband .by means of fasteners 5. Each pivot bolt 4 is rigidlysecuredl to the Ymask by means of .a `pair of nuts "I, one on each side of the sheet material used in the mask, the outer nutbeing tightened up to grip and clamp the sheet material of the mask between the Itwo nuts.v

In order to provide a frictional engagement for holding the mask and headband in adjusted position,v acoil compression spring 8 is provided acting between a pair of washers 9, one of which bears against the nut l and the other of which bears against the mounting `strap 0r bracket 5.

The eyeshield 3 is pivotally secured to the headband I by means of a pair of rivets III extending through apair of pivoted L-shaped rock arms I I on` which the eye shieldr3 is mounted.

The construction by means of which lifting of the mask causes lowering of the eye shield, and vice versa, comprises a pair of brackets or arms I3 rigidily secured to the pivot bolts 4, respectively, each provided with a crank pin or follower I4 which operates in a slot I5 on the L- shaped rock arm which carries the eye shield 3. In considering the eiiect of raising and lowering the'mask on the movement .of the eye shield, it should be noted Vthat the pivot bolts 4 are fixed with respect `to the mask 2 and that the crank arms I3 and crank pins I4 rock with themask 2 and pivot bolts 4. From this, it follows that the rocking movement of the crank pins I4 which slide in the slots I5 will cause a =rocking action of the L-shaped rock .arms II Vi/vhichfcarry the eye shield in such a way thatV when the mask 2 is raised the eye shield 3 will be lowered, and that when the mask 2 is lowered the eye shield 3 will be raised. The crank arms I I and I3, crank pins I4, and slots I5 are so proportioned and designed that when the mask is pulled down so that the chin strap or rest I6 rests on the chin, the eye shield 3 will be raised above the eyes and away from the sight openings I'I in the mask the desired position, leaving the other hand free.A

The pivot pins 4 which carry the crank arms I3 may be rmly secured in any desired position of rotary adjustment with Arespect to the mask 2 by loosening the nuts 1, adjusting theY pins 4 rotarily with respect to the mask and again tightening up the nuts. This enables the crank pin I4 to be set in any position desired with respect to the mask 2 to change the range ofv movement of the eye shield 3 with respect to the range of movement of the mask 2.

AThe eye shield comprises a semicircular band or strapl of flexible material, riveted at I9 to the L-shaped "rock arms II, and a'somewhat crescent shaped shield of flexible transparent material detachably secured to thesemicircular strap.

`In order to adjust the vshield for different wearers or for different situations, means are provided for securing the transparent shield 2D in different positions of adjustment on the semicircular band. For this purpose, as shown in Figs. 3 and 4, `one or both ends of the shield are 'provided with snap fastener pockets or eyes 2l, similar to glove fasteners, for engagement with cooperating snap fastener buttons 22 on the semicircular band I8. The central portion of the transparent shield is provided with a plurality of eyes or depressions 23, any one of which may bebrought into engagement with a cooperating button 24 secured to the central portion of the band I8. To change the adjustment, one of the eyes 2l is disengaged, the eye 23 on the transparent shield is disengaged from the button 24 on the strap and a different pocket 23 is brought intoregistration and engaged with the button on vthe strap, and the glove fastener eye 2| is again snapped into engagement with the cooperating button 22 on the semicircular strap. The lower central portion of the eye shield 3 may be cut away, as indicated at 25 in Fig. 2, and may have a raised portion 26, as shown in Fig. 1, to provide clearance for the nose of the wearer when the shield is brought down into shielding position.

As described above, the crank pin I4 may be set vin any desired position with respect to the mask 2 to change the range of movement of the eye shield 3 with respect to the range of move- `ment of the mask 2. The individual wearer can adjust the helmet by loosening up the nuts 1,

placing the helmet on the head in the most comfortableposition, raising the mask 2 over the head and drawing down the eye shield 3 in front ofthe eyes, and then tightening up the nuts 1 on both sides of the mask, thus automatically locating the maskpand eye shield in their proper relative position. If, thereafter, any minor adjustments are needed, this can be accomplished rbyadjusting the veye shield 3 by means of the 4 button 24 and the series of eyes 23 on the eye shield.

Further modications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the scope of the appended claims. l

Having thus described our invention, what we claim and desire to secure by Letters Patent is:

l. A head protector comprising a headband, a face mask pivotally carried thereby and movable' from face shielding position to a position above the face, an eye shieldY pivotally carried by said headband and movable from eye shielding position to a position above the eyes, transmission means between said mask and eye shield whereby motion of the mask to nonshielding position moves the eye shield to shielding position and whereby motion of the mask to shielding Vposition moves the eye shield to nonshielding position, said transmission comprising a first crank arm movable with the face mask and a second crank arm actuated by said first crank arm and movable with the eye shield, and means for securing said rst crank arm in a plurality of different positions of rotary adjustment with respect to said mask, said crank arms having a sliding pin-and-slot connection with each other.

2. A head protector comprising a headband, a face mask pivotally carried thereby and movable from face shielding position to a position above the face, an eye shield pivotally carried by said headband and movable from eye shielding position to a position above the eyes, transmission means between said mask and eye shield whereby motion of the mask to nonshielding position moves the eye shield to shielding position and whereby motion of the mask to shielding position moves the eye -shield to nonshielding position, said transmission comprising a rst crank arm movable with the face mask and a second crank arm actuated by said first crank arm and movable with the eye shield, and means for securing said first crank arm in a plurality of different positions of rotary adjustment with 'respect to said mask,., said crank arms having a yby said headband and movable from eye shielding position toa position above the eyes, transmission means between said mask and eye shield whereby motion of the mask to nonshielding position moves the eye shield to shielding position and whereby motion of the mask to vshielding position moves the eye shield to nonshielding position, said transmission comprising a first crank arm movable with the face mask and a second crank arm actuated by said rst crank arm and movable with the eye shield, and means for securing said rst crank arm in a plurality of different positions of rotary adjustment about an axis fixed with respect to said mask.

, MARSHALL N. ANDERSON.

MELVIN H. SELLSTROM.

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