US1886410A - Goggles - Google Patents

Description

Nov. 8, 1932. R. MALCOM 1,886,410

GOGGLES Filed April 2, 1931 Patented Nov. 8, 1932.

UNITED STATES nonnnr maroon, or 01110460, rrnmors GOGGLES Application filed April. it;

My invention relates to means for providing a proper circulation of air through each eye-cup of the goggle and particularly C1ICl?.- lation of air acrossfthe inner side or face of each lens, whereby fogging or steaming of the lens will be prevented the circulation providing means, however, being so arranged that entrance of foreign metal particles into the eye-cup will be prevented.

' tion will be readily apparent from the detailed description of the accompanying drawing, wherein Figure 1 is a face View or outside elevation of a goggle provided with my invention; a portion of one lens and the retaining ring being broken away to show the construction.

Figure 2 is a perspective view of one of the eye-cups with the lens and lens retaining ring removed.

Figure 3 is a cross-sectional view taken substantially on the. line 3-3 of. Figure 1.

Figure 4 is a perspective view of one of the lens retaining rings.

7 r The eye-cups 10 are generally cylindrical in shape with the inner or face contacting perimeters shaped to more or less fit the contour of the face about the eyes; and these cups or eye-pieces are usually made of a suitable plastic material, such as bakelite, which, aft er being properly moulded, is baked or hardened to provide a rigid construction.

These goggles, especially intended to be worn by artisans engaged in the working or shaping of metal where flying particles of metal and other foreign particles are encountered, are usually provided with side vision providing screened openings in the eye-piece side wall, as shown at'11 in Figure 2. 1

As the goggles are worn for long periods of time and during varying or changing temperatures, it has been found in practice that a proper circulation of air is not obtained in the closed end of the eye-cup immediately adjacent to the lens sufficient to prevent fogging or steaming of the lens. Such fogging or steaming of the lens, of course, greatly interferes with the operators Vision and consequently with his operations.

The objects and advantages of my inven Serial No. 527,143.

The lenses 12 of goggles of the character in question are generally removably held in place by a flanged ring so as to permit renumber of threads, as shown at 15, to permit the ring 13 to be screwed onto the eye-cup, with the flange of the ring 13 in overlapping relation with the perimeter of the lens 12, thereby holding the inner face of the lens in firm seating relation with the outer perimeter or end of the eye-cup or eye-piece.

In order to obtain a free circulation of air across the inner face or side of the lens, I provide the outer end or perimeter of each eye-piece or eye-cup 10 with a plurality of circumferentially arranged lugs or projections 16 and 17.

The lugs or projections are all .of equal height or'dimensions and arranged in air cumferential rows; that is to say, the roW of lugs or. projections 16 are preferably equidistances apart and arranged adjacent to and in alignment with the outer circumference or face of the eye-piece 10, while the circumferential row of lugs or projections 17 also preferably equi-distances apart are arranged adjacent to and in alignment with the inner circumference or face of the eye-pieces 10.

The lugs or projections 17 are arranged in staggered relation with the lugs or projections 16, as shown in Figures 1 and 2.

As the walls of the eye-cups or eye-pieces 10 are made comparatively thick, these. lugs or projections can be arranged in separate rows Without contact between the lugs of one row with those of the other. The lugs or projections may have any desired configuration, but are preferably of the rectangular shape shown in the drawing. They are also of such thickness that they may be arranged so that the ends of the lugs or projections 16 extend slightlybeyond the ends of the lugs or projections 17; namely so that the lugs of one row slightly lap those of the other row, but, of course, in spaced relation therewith in order that a plurality of indirect or oif-set air p is provided.

eye-piece wall, the side of the ring 13, ad-

jacent to the flange end thereof, but sufiiciently removed therefrom so as to clear the perimeter of the lens, is provided with openings arranged circumferentially thereabout and in spaced relation as shown at in Figures 3 and 4.

These openings 20 are adapted to register -with the spacings intermediate of the lugs or projections when the lens has been seated against the flange and within the ring 13 and the ring has been properly or completely screwed onto the threads of the eye-piece, thus permitting air to pass through the ring openings 20 and through the small passages between the lugs or projections of one row and the lugs or projections of the other row.

The lugs or projections 16 and 17 are preferably arranged in the lapping staggered relation described so as to provide off-set or indirect air passages therebetween and the openings in the ring 13 are preferably small holes so as to make the entrance of foreign matter less likely than would be the case if direct passages between the two rows of lugs and slots in the ring were provided.

With a goggle constructed as herein described, fogging or steaming of the inner faces of the lenses will be prevented as circulation of extraneous air across the entire inner face of the lens is provided, without the likelihood of entrance of foreign particles of metal or the like.

What I claim is: e

1. A goggle, the eye-cups whereof on the lens seating ends are provided with a plurality of projections arranged in different circumferential rows, with the projections of one row arranged in staggered relation with those of the other rows so as to provide off set air passa es therebetween; and a lens holding rlng a apted to encircle the lens and engage with the eye-cup and provided with a plurality of openings adapted to register with the air passages between said prm jections.

2. A goggle, the eye-cups lens seating ends are provided with a plurality of spaced rectangular projections arranged in different circumferential rows, the pro ections of one row being arranged in staggered relation with those of the other whereof on the row, with the ends of the projections of one row extending slightly beyond the ends of the projections of the other row so as to provide offset air'passages between the ends of the projections of the difierent rows; and a. lens holding ring provided in itsside wall with a plurality ofopenings adapted .to register with the air passages to permit circulation of air across the inner faces of the lenses.

3. A goggle, the eye-cups whereof on the lens seating ends are provided with a lurality of spaced -rectangular projections av- 1 ng flat lens receiving outer faces, said proectlons being arranged in a row coincident withthe outer circumference of the eye-cup and in a row coincident with. the inner circumference of the eye-cup, with the opposing faces of the projections of the two rows bemg arranged on opposite sides of the circumferential median line of the eye-cup wall, the pro ections of one row being in staggered relation with those of the other row and the ends of the projections of one row extending circumferentially beyond the ends of the proections of the other row so as to provide offset alr passages across the outer perimeters of the eye-cups; and a flanged lens holding ring threaded onto the outer ends of the eye-cup and provided intermediate of its ends with openings adapted to register with the air passages between the projections- 4. A goggle, the eye-cups whereof are externally threaded and the lens seating ends provided with a plurality of slots disposed circumferentially on the inner faces andaplurality of slots disposed circumferentially on the outer faces of the eye-cups with the slots on the outer faces arranged 1n staggered relation with the slots on the inner faces, while the eye-cup walls, intermediate of the outer and inner faces are provided with passages communicating with the slotson the outer' and inner faces whereby offset air passages between the inner and outer faces of the eye cups are provided; and lens holding rings internally threaded to screw onto the eyecups, said rings having plurality of openings spaced apart circumferentially and adapted to register with the slots on the outer faces of the eye cups.

ROBERT MALCOM.

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