US1730392A

US1730392A - Lens holder for trial frames

Info

Publication number: US1730392A
Application number: US147442A
Authority: US
Inventors: Harry H Styll
Original assignee: American Optical Corp
Current assignee: American Optical Corp
Priority date: 1926-11-10
Filing date: 1926-11-10
Publication date: 1929-10-08
Anticipated expiration: 1946-10-08

Description

9% W m Glow? Oct. 8, 1929. H. H; STYLL LENS HOLDER FOR TRIAL mums Filed Nov. 10, 1926 Patented Oct. 8, 1929 HARRY H. STYLL, OF SOUTHBRIDGE, MASSACHUSETTS, ASSIGINO R TO AMERICAN OPTI- 7 CAL COMPANY, OF SOUIHBRIDGE, MASSACHUSETTS, V0L'FJ'NTARYv ASSOCIATION OF MASSACHUSETTS tans HOLDER Foe TRIAL FRAMES Application filed November 10, 1926. Serial No. 147,442.

This invention relates to new and useful improvements in lens holders for trial frames and the like and has particular reference to a metal and composition reinforced holder and method of making the same.

The principal object of the invention is to cover a metallic trial lens holder with a nonmetallic compound to give it the appearance of a practically all composition holder.

Another object of the invention is to form a trial lens holder of nonmetallic composition down over the lens to secure it in place and toprovide metallic peripheral teeth to engage.

the ring turning means of a trial frame whereby the ring is turned to axis.

Another object is to provide simple, durable and economical means for forming a composition trial lens holder of the character stated. f

Other objects and advantages of the invention will become apparent by reference to the following specification taken in connection with the accompanying drawings, and it will be understood that I may make any modifications in the specific arrangements of parts, details of construction and methods shown and described within the scope of the appended claims without departing from or exceeding the spirit of the invention. The preferred forms of the invention only have been shown and described by way of illustration.

In the drawings forming part of this application and wherein like characters of reference denote corresponding parts throughout the several views:

Figure 1 is a front elevation partly shown in section of a trial lens holder constructed in accordance with the invention;

Figure 2 is a vertical sectional view on line 22 of Figure 1.

Referring more particularly to the drawring 10 has a finger piece or handle 12 formed thereon to facilitate its positioning in and removal from a trial frame and which may be so marked. as at 13, to indicate the power of the lens inthe holder.- The finger piece or handle 12'may be made entirely of metal as shown in Figures 1 and 2. I prefer to apply the composition to the metal ring in a plastic or molten condition and to press the same to shape although the composition may be applied as sheets or in other ways.

The metallic ring 10 is provided centrally with asuitable flange 14: formed with an annular bead 15 upon which the lens 16 is placed or rested, after which the oppositely outstanding flange portion 14 is spun over as at 17 to firmly position the lens 16 within the ring 10.

In Figures 1 and 2 the lens holderis shown with portions of the metallic ring exposed, such as the handle 12 and the toothed edge 18, which is adapted to mesh with and be rotated by a suitable pinion formed in a trial frame, not shown in the drawings. In this'instance the ring 10 is formed with the oppositely

grooved faces

19 and 20 and the recesses 21 which are adapted to receive the composition or the like 11. The composition or suitable material is pressed into the lens holder during its plastic state and is then allowed to' dry and harden, after which its outer faces are highly polished. It will be apparent that during the pressing of the plastic composition or suitable material within the lens hold er it will thoroughly unite within the recesses 21 and thereby rigidly mount itself on the lens holder. p I

Although I have specified the composition as the preferable material it is tobe under-' stood that other materials may be used, such as cellulose compositions or the like.

From the foregoing description it will be seen that I have provided extremely simple trial lens holder with composition or similar material, which may be moulded over, pressed on or adhered to the metallic ring so that the lens holder will have the appearance of a. composition holder but Will have the strength of a metallic holder.

Having described my invention, I claim:

1. In a device of the character described, a metallic ring having a projecting handle portion and a central lens opening with a lens seat annulus" surrounding it, a non-metallic covering on the metallic ring extending from the lens seat annulus to substantially the periphery of the circular edge of the ring leaving the projecting handle portion of the ring uncovered.

2. In a device of the character described, a metallic ring having a projecting handle portion and a central lens opening With a lens seat annulus surrounding it, a nonmetallic covering on the metallic ring extending from the lens seat annulus to substantially the periphery of the circular edge of the ring leaving the projecting handle portion of the ring uncovered, and a lens in the lens seat annulus. i HARRY H. STYLL.