US1778436A - Ophthalmic mounting - Google Patents

Description

Oct. 14, 1930. j TWQMBLY 1,778,436

OPHTHALMI C MOUNTING Filed Feb. 27, 1928 I N V EN TOR.

/FJWM A TTORNEYS.

Patented Oct. 14, 1930 V UNITED STATES PATENT OFFICE JOHN I. TWOMBLY, F PROVIDENCE, RHODE ISLAND, ASSIGNORTO UNIVERSAL OPTI- CAL CORPORATION, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND OPHTHALMIC MOUNTING Application filed February 27, 1928. Serial No. 257,154.

This invention relates to an improved construction of ophthalmic mounting; and has for its object to provide in such a mounting a bridge member of substantially U-shape,

comprising a cross-bar having side arms extending substantially parallel with and preferably spaced from the adjacent portion of the eyewires of the mounting. Each of the side arms of this member has bosses thru which it is secured to the eyewire.

A further object of the invention is that each of the side arms of the bridge member extends down below the medial line thru the lenses or eyewires and that the nose-guard member is connected to the lower portion of these side arms.

The invention further consists in the provision of a plurality of spaced bosses on each of the side arms thru which these arms are attached to the eyewires.

With these and other objects in View, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a front view of my ophthalmic mounting in which the eyewires are connected by my improved form of bridge member.

Fig. 2 is an edge View of the mounting illustrated in Fig. 1.

Fig. 3 is a perspective view of the bridge member detached and showing a nose guard connected to the lower ends of its side arms.

Fig. 4 is a perspective view of one of the nose guards.

Fig. 5 is a side elevation showing a fragmental portion of the bridge member detachedfrom the wire, and the eyewire notched on its periphery to receive the boss on the arm of the bridge member.

Fig. 6 shows a fragmental portion of an eyewire in section.

Fig. 7 illustrates the arms of the bridge member as each being provided with attaching bosses spaced apart and both being above the medial line thru the center of the eyewires.

Fig. 8 shows one of the attaching bosses as being connected to the eyewires at a point be low the medial line thruthe eyewires.

Fig. 9 shows the arms ofthe bridge member each of which is connected to the eyewire at its upper and lower ends.

Fig. 10 shows another modification in which the side arms of the bridge member are connected each thru three spaced bosses to the edge of the eyewire. It is found in practice of advantage particularly in the construction of'ophthalmic mountings formed of precious metal to provide a connecting bridge member in substantially U-shape with its side arms extend ing substantially parallel with the adjacent portions of the eyewires and spaced therefrom with the lower end of these arms eX- tending to or below the medial line thru eyewires and to provide a boss on each of these arms arranged to be connected to the eyewires at a point'preferably above the medial line thru the eyewires and to attach anose guard to the lower portion of these side arms each preferably at a point substantially on the medial line'thru these eyewires; and the following is a detailed description of the present embodiment of my invention and showing the preferred form and several modifications in construction by which these advantageous results may be obtained:

With reference to the drawings, 10 designates the eyewires which are preferably formed of metal, the same being herein shown as being notched as at 11 on their inner edges. These eyewires are connected by a bridge member 12 which is preferably formed substantially in U-shape with a crossbar'13 and two side arms 14; These side arms are .perferably arranged with their outer edges extending substantially parallel to the adjacent portion 15 of the eyewires and the lower ends 16 of these arms extending preferably to a point slightly below the medial line thru the eyewires and lenses 17. r In attaching these side arms to the eyewires, I preferably provide a boss 18 on each of the arms and integral therewith as shown in the drawing or which are attached by soldering or otherwise to the eyewires to connect these wires together at a point slightly above the medial line thru the eyewires.

A nose guard 19 is provided with a bendable arm 20 which I preferably connect to the lower portion of each of the side arms, which facilitate-the, construction of the device as these nose guards may be connected to the bridge before the bridge is connected to the eyewires.

' 3Q I do notwish to be restricted to the attach ing of thebridgemember' to the-eyewires at a point above and adjacent the medial line.

second boss 21, as illustrated in Fig. 7 nearer I,

attaching the bridge to the eyewires, while in the medial line and instill other cases I may providebosses whichwwill be employed for go, connecting these bosses to. the eyewires both above and below the medial line, as best illustrated in Fig, '10., V i v Inrsome instances, it is found of advantage to notch the edge of the eyewires as at 23, to receive the boss 18 therein and so facilitate the locating of the bridge member on the eyewires. I I

- My improved form of bridge memberis extremely simple and practical. inits construction, it facilitates the connecting of the 1 bridge member-to the eyewires and forms a very strong and durable connectionbetween the bridge member and the eyewires The, foregoing description is directed sole- 86 ly towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to allthe mechanical changesto which the device is susceptible, the invention being defined and limited only b 40 the terms of the appended claims.

Iclaim: f 1. In anophthalmic mounting, a pair of spaced eyewires, a substantially U-shaped connecting bridge membervhaving side arms 4 extending substantially parallel with the adjacent portions of the eyewires in the plane of the eyewires but spaced therefrom, each arm having a pair of bossesin the saidiplane attached to the eyewires at points above and below the medial line through the eyewires, the arms having a portion extending below the medial line. g I I 2. In an ophthalmic mounting, a pair of spaced metal eyewires, a substantially U- shaped connecting brid' e member having side arms extending su stantially parallel with the adjacentfportion of the eyewires in the plane of the eyewires and spaced there from and extending to a point below the 50 medial line therethrough, a plurality of I spaced bosses in the said plane extending from each of said side arms and attaching i said side arms at intervals to the eyewires."

In testimony whereof I' afiix my signature.

'JOI-IN-IL'IWOMBLY; I

only as in some instances I may' providea r 15 the upper portion of the bridge to' assist in it 7 other cases Irmay'proVidea boss '22 below v i

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