US1109285A - Frame for spectacles, eyeglasses, and the like. - Google Patents

Description

H HAASE.

FRAME FOR SPEOTAGLES, EYEGLASSES, AND THE LIKE.

APPLICATION FILED MAR. 31, 1913.

1,109,285. Patented Sept. 1, 1914;

' Wave/051! ZQZmwms; r 0' HEINRICH'HAASE, or. aA'r'HENow, GERMANY.

FRAME-FOR SPECTACLES, E'YEGLASElES', AND THE LIKE.

Specification of Letters Patent,

Application filed March 31 1913. Serial No. 757,889.

.7 '0 all whom it may concern:

- Be it known that I, HEINRICH HA-AsE,sub- I ject of the King of Prussia, residing at Rathenow, in the German Empire, have invented certain new and useful Improvements in Frames forSpectacles, Eyeglasses,-

and the like, of which the following is a specification.

This invention relates to the manufacture of the frames of spectacles, eye-glasses, lorgnettes and the like and more particularly to the manufacture of'such frames from tortoise-shell, horn, and fibrous or grained material. Hitherto such frames have been cut from sheets of the materiaL-to the required circular or oval shape. This. method, however, results in great. waste of material while the insertion and removal of the lenses is diflioult as the frames require to be frames previously heat'ed.- Furthermore,

' from such fibrous material as tortoise-shell,

horn and the like are deficient, in strength owing to the fact that the greater part ofthe frame is of/nece'ssity cut, across the grain.

Such frames easily split when being bored or when the lens d'oesnot fit truly therein.

According-Ito the present invention the sheet material is cut lengthwise of the grain into straight strips which are-then bent into the required shapeito form the frames, so that, the grain will extend circumferentially around the lens.

In order. that the invention'may be more clearly understood reference is'made to the accompanying drawings whereon- Figure 1 illustrates the manner'inwhich the strips are cut fromv a sheet. Fig. 2

shows in front view a spectacle .frame by way of example constructed according to the present invention. I a

As illustrated in Fig. 1 the into strips b of rectangular orapproxim'ately rectangular cross-section, the fibrous or grained material, being cut lengthwise of the grain. Owing to the structure of the sheets the latter should preferably be of such thickness and. the stripsbe .so cut'therefrom that the narrow sides of the strips are constituted byfthe' cut surfaces, that is to say, are at sheet a is cut right angles to the grain of the sheet, thus msurlng the greatest possible strength and elasticity. I

The,manner ofbending the strips, 6 to form'the frame will be readily apparent from Fig. 2 ofthe drawings and it will be seen that the grain of the lens frames 5 will be in a'direction' circumferential tothe lens.

In order to securely fasten the meeting ends b of the frames 6 "the ends 6 are preferably bent outwardly at only a slight. curvature and instead of being directly screwed or riveted together a block 0 of the desired shape is inserted between the ends 6 and secured thereto by means of screws orthe liked, d As the screws d and d are subjected to considerable tension they are preferably not merely screwed into the block 0 "but are screwed into an internally screw threaded metal sleeve f let into the block a. The ear-pleces g which may also be of t0r- .toise-shell or like material are each pro- Patented Sept. 1, 1914.

vided with an eye 71 secured thereto by means :of a screw it and turn about apin passingthrough the ends 5 of the frames b The bridge piece m, likewise bent from a strip 72 is secured to the frames 6 by means 0 screws or rivets 0.

provided with the usual groove p for the re-' ception of the lenses.

The frames 6 may be It will be seen that by this construction,

owin to the parts of the frame being cut lengt wise of the grain, the frame is capable of considerable elasticity and can ada t 'itself to theshape of the lens and is etter able to withstand vibrations than. frames cutto the required circular or'oval-shape from the sheet Moreover, the material does not split or break off on boring it for the reception of rivets or screws. The

lenses can also be inserted and replaced without heating.

I claim I 1. A frame for spectacles and eye-glasses comprising strips of straight-grained matev.rial of animal origin, the grain being length wise of the strips.

2. A frame for spectacles and eye-glasses comprising strips of straight-grained albuminousmaterial the grain being lengthwise. screws passing through said meeting ends of the strips. into said sleeve.

3. A frame for spectacles and eye-glasses In testimony whereof I have 'aflixed my comprising, in combination, two bent strips signature in presence of two witnesses.

5 forming the lens mounts, a bridge-piece HEINRICH HAASE.

connected thereto, a block intermediate the Witnesses: meetlng ends of eachof said strlps, an in- HENRY HASPER,

ternally-threaded sleeve in said block, and WOLDEMARYHAUPT.

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