US1408349A - A voluntaby association - Google Patents

Description

G. H. DAY.

comes. APPLICATION FILED DEC-26, 1917.

1,408,349. v Patented Feb.28, 1922.

INVENTOR 4 qsoma: H. DA

A TTORNEYS UNITED STATES PATENT OFFICE.

GEORGE E. DAY, OF SOUTHBRIDGE, MASSACHUSETTS, ASSIGNOR'TO AMERICAN OPTI- CAL COMPANY,'OF SOUTHBRIDGE, MASSACHUSETTS, A VOLUNTARY ASSOCIATION OF MASSACHUSETTS.

GOGGLES.

Specification of Letters Patent.

Patented Feb. 28, 1922.

Application filed December 26, 1917. Serial No. 208,942.

To all whom it may concern:

Be it known that I, GEORGE H. DAY, of Southbridge, in the county of WVorcester and State of Massachusetts, have invented certain new and useful Improvements in Goggles, of which the following is a specification. a

This invention relates to improvements in ophthalmic mountings and has particular reference to an improved constructlon of mounting adapted for use in the industries.

One of the leading objects of the'present invention is the provision of an improved mounting for this purpose particularly adapted for smelters or other use in wh1c h the wearer is subject to intense heat conditions and also to flying particles liable to break, abrade or otherwise injure the lenses making it desirable that the lenses be interchangeable and replaceable. L

A further object of the present invention is the provision of a novel improved struc- I ture for this purpose in which metallic parts or the like shall be reduced to a minimum and in which there shall be no metallic parts exposed to contact with the face of the wearer.

Another object of the present invention 1s the provision of an improved construct on of lens cell and improvedfra-me for wwwing the cell which will permit of the ready insertion or removal of the lens and cell as desired, facilitating either interchangement or replacement of the parts in a simple and eflicient manner.

' Other objects and advantages of my improved construction should be readily apparentby reference to the following speclfication taken in connection with the accompanying drawings forming a part thereof, and it will be understood that I may make 1 any modifications in the specific details of construction shown and described within the scope of the appended claims without departing from or exceeding the spirit of my invention.

Figure I represents a front elevation of a ,mounting embodying improvements.

Figure llrepresents a top plan view thereof. I

Figure III represents a horizontal sectional view taken as on the line III--III of Figure I.

Figure IV represents a vertical sectional view as on the line IV-,IV of Figure II.

Figure V represents an enlarged fragmentary View particularly illustrating one construction of lens cell, and Figure VI represents a sectional view through the bridge member as on the line VI-VI of Figure II.

In the drawings, in which similar characters of reference are employed to denote corresponding parts throughout the several views the numeral 1 designates my improved bridge or connecting member formed of leather or other suitable flexible nonmetallic material having secured to each end thereof an eye cup preferably of fibre or other nonmetallic nonconducting material which will readily radiate but will not absorb heat radiations and consequently will not become unduly heated and uncomfortable to the face of the wearer. To insure most comfortable fitting of this bridge member to the nose of the wearer it will be noted that in place of same being disposed in a substantial vertical plane when on the face of the'wearer or in other words in a plane parallel to the lenses as has been customary with flexible or non metallic bridge members as previously employed, I have shown my improved bridging member as disposed at an angle substantially corresponding to the angle of the crest of the nose so that in the event that the bridging member comes into contact with the nose of the wearer it .will lie fiat against the nose in a comfortable manner in place of having an. edge only contacting with the nose and liable to cut somewhat thereinto. To attach my improved construction of bridge member suitable to the eye cup 2 and eliminate metal parts and-the like I have preferably formed in the eye cups the diagonal extending slots respond to the surface of the face of the wearer to fit rather closely thereagainst and exclude dirt or'flying particles, while to permit of ventilation of the interior of the cups and thus prevent undue heat around the eye, "steaming of the lenses or other disagreeable effects due to tight fitting cups, I have formed in the cups the plurality of ventilation apertures 5. These apertures, however, in place of being formed directly through the cups as has been customary in the past are formed at a rearwardly inclining angle in such a manner that an air current can go up along the face or a current created by the rising of the heated air with in the cup will move forwardly as well as upwardly if entering the goggle and toward the lens,,tending in a manner to equalize the temperature on both sides of the lens in that the incoming outer air currents are directed in a sort of spray thereagainst while the apertures at the top are also rearwardly directed so that the possibility of flying particles or the like entering through the apertures is reduced to a minimum, since the entrance and exit apertures are both directed toward the face or in the opposite direction from that to be expected of the movement of such particles.

{I have previously referred to the desirability of employing interchangeable lenses in a frameof this character and to facilitate the accomplishment of this result I preferably first form near thefront end of each of the eye cups an angular groove or channel as at 6 and then subsequently cut away a portion of the front wall of the channel, leaving the rear shoulder as at 7 with the front open, while leaving a portion of the groove complete. In addition I then form at one edge of the goggle cup 2 the slot or kerf 8, while secured exteriorly to the eye cup and extending inward through the slot is the resilient locking member 9 having the spring lip or operating portion 10. In use either a plain lens or preferably a lens mounted in one of my improved cells has a portion of its edge first engaged in the channel 6 and is'then pressed rearwardly toward the eye cup, when the lens will engage and cam outwardly the spring lip to permit the lensto snap past the lip into tight engagement with the shoulder at T as is clearly illus- .trated in Figure IV. The lip 10 springing inwardly after passage of the lens will serve to engage and retain the lens against accidental outward movement, the result being that the lens is held at one side by its fit within the channel 6, its rearward move ment around its entire circumference prevented by its engagement with the shoulder 7 and it is detaehably held against outward or disengaging movement at its other side through the engagement therewith of one .or more of the spring fingers so that while the lens may be snapped out of the eye cup by pressure from the rear adjacent the locki'ng spring 9 it is normally satisfactorily held in position. While I have mentioned that an ordinary lens may be employed, I

preferably make use of an improved metallic cell'for retaining the lens, this cell being adapted for use with either a single lens or a compound lens made up of one or more pieces of glass such as is frequently employed in the industries, in this event the cell serving both to facilitate the mounting of the lens, holding together the several parts or components making up the lens, and also to prevent chipping of the lens previous to its mounting in the frame and is at all times a desirable protection and reinforcement for the lens. The exact construction of this cell should best be understood from reference to Figure V, from which itean best be seen that the lens 1 has fitting therearound the double ogee ring 12, the lens preferably being beveled from one side only as at 13, and the doubleogee portion of the ring fitting against the beveled edge of the lens, while a second portion 14E depends over the face of the lens andprovides a little rim around the edge of the lens, whereby when the lens is mounted in position in the frame the portion 14 will rest against the shoulder 7 of the eye cup, reinforcing and bracing the lens at the rear around the edge to eliminate breakage or chipping by undue strain on the extreme edge or beveled portion of the lens if the same is struekjby a. flying particle. It will be noted that the double ogee formation referred to provides at the rear of the lens the projecting rim 15 and adjacent groove 16, the rim 15 fitting in the channel 6 and behind the lip 10 of the spring finger Sand the lip interlocking with the groove 16 to retain the parts as previously described.

To retain my improved construction in position on the face I have preferably made use of a head band as at 17 which may extend through the side apertures 18 of the eye cups and be suitably secured in position either by the formation of an enlargement on the end of the head band or by loops going around the rear edge of the cup 2 and sewing or otherwise securing the ends together. At the same time to increase the comfortable fit of the mounting on the face of the wearer I preferably bevel off the outer'edge of the inside portion .of the cup, as indicated at19 so that it may present a wider bearing surface to more smoothly fit against the nose of the wearer,this bevel gradually changing till on theouter portion the bevel isat 20 or on the inside face of the cup so that the outer portion will coinfortably fit against the face of the wearer. It will be apparent, therefore, thatthese bevels take care of the pressure against the side of the .nose and against the side of the face and give much broader and more comfortable bearing surfaces than have previously been provided in a substantial one-piece or heat proof construction such as that here presented.

From the foregoing specification taken in connection with the accompanying drawings the construction and advantages of my improved eye protecting mounting, including the lens cell for use in connection therewith, should be readily understood, and it will be seen that I have provided a novel and improved construction which has the several parts so constructed as to be very comfort able in fitting the face of the wearer and having a soft contact therewith, together with an absence of metallic or other parts liable to become heated and uncomfortable to the face of the wearer, and it will be further noted that I have provided an improved reinforcing lens receiving cell and novel and improved means for securely but detachably mounting the cell within the eye cup to permit of readily removing and replacing the lens and cell when desired.

I claim:

1. In a device of the character described, the combination with a lens, of a retaining rim therefor encircling the lens and having an outwardly projecting rib or flange portion and an eye cup member having a seat to receive the lens, a keeper recess to receive the rib, and an additional locking member for engaging the frame to secure the same in position on the seat.

2. The. combination with an eye cup having a groove formed in one edge thereof, providing a shoulder, of a portion on the cup overhanging the shoulder at one side thereof to form a channel, and a spring clip projecting adjacent the shoulder at theopposite side whereby a lens may have its edge at one side engaged in the channel and its opposite edge engaged with a spring finger to detachably hold the lens in engagement with the shoulder.

3. The combination with an eye cup having a channel formed at one end thereof, of a lens, a cell for the lens having a projecting rim portion adapted to fit within the channel of the cup and resilient locking means on the cup engaging the rim for locking the lens in position in the cup.

In testimony whereof I have affixed my signature, in presence of two witnesses.

GEORGE H. DAY. Witnesses:

WM. P. CHAsE, WILLIAM B. J ONES.

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