US1841052A - Adjustable temple for spectacles - Google Patents

Description

Jan. 12, 1932'. prl AA PQLLNULLER 1,841,052

ADJUSTABLE TEMPLE FOR SPECTACLES Filed March 22, 1928 "d 5 ,Samy/@ 2 INVENTOR. 5 /y 4 ffec/. Po//mz//ef A TToRNEYS.

Patented Jan. 12, 1932 PATENT OFFIC FRED A.VPOLLIVIILLER, OF FORT MADISON, IOWA ADJUSTABLE TEMPLE FORl SPECTACLES Applicationiiled March 22, 1928. Serial No. 263,689.

My invention relates `to spectacles or goggles and particularly 'to ytemples therefor, the present invention being an improvement over the structure disclosed in Letters Pat- 3 ent No. 1,591,181, issued to Ine on July 6, 1926, and having for its principal Aobject to provide means for more readily adjusting the temples for the efficient positioning of the lenses and the comfort of the wearer, and to stabilize vthe sections of the temples in their adjusted position.

Inl accomplishing these and other objects of the invention I have provided improved details of structure, the 'preferred forms of 15 which are illustrated in the accompanying drawings, wherein:

Fig. y1 is a perspective view of a pair of spectacles including temples embodying my invention.

Fig. 2 is an enlarged sideview of one of the temples, the socket member and loop tip being in longitudinal section and the loop member partially broken away for better illustration.

Fig. 3 is a plan view of the temple, the socket being in central transverse section and illustrating a latch in closed position.

Fig. 4 is a cross section on the line 4 4, Fig. 3.

Fig. 5 is a det-ail perspective view of telescoping ends of the socket and loop members, a part of the socket being broken away and the latch being illustrated in open position.

Referring more in detail to the drawings:

1 designates a spectacle frame including rims 2 and 3 connected by a bridge 4, and carrying lenses 5 and 6. Hinged to the outside of each of the rim members 2 and 3 are temples 7, each comprising a bar-like socket 8 et member comprises preferably a substantially cylindrical tube having a reduced bore 10 provided with internal threads 11 for the external threads 12 on a rod 13 and a flexible core wire 14 comprising an element of the loop 9 is iiXed to the rod 13. The core wire is resilient and covered throughout its length with a spiral ribbon 15 forming a housing for the core wire and of a diameter to seat snug- "i ly and slide within the outer end of the socket,

anda bow or ear loop member 9. Each sock-- the inner end of the ribbon abutting against the end of the threaded rod 13, and its outer end abutting against an elongated shell-like button 16 on the wire.

The button 16 is interiorly threaded to l55 serve as a nut for a bolt head 17 on the end oli' the core wire 14 and is crimped at its inner end to produce an inwardly extending flange 18 providing the abutment for the outer end or the spiral ribbon, which is slidable over the core wire and tends to extend therealong. The flange 18 also may engage the bolt head and thus serve to retain the button on the loop.

The core wire is initially curved to a cur- 55 vature for substantially iitting of the curved end of the loop to a position back of the ear of the wearer. To vary the arc of the loop 9, the button is turned on the bolt head 17 to permit the ribbon to expand or cause the rib- 70 bon to contract. "When the ribbon is contracted the inner circumference is compressed to a greater degree than the outer circumference, tending to reduce the radius of the arc; and when the ribbon is permitted to expand, the radius is increased, so that a loop end of larger curve is provided, the nature of the curved end being thus accommodated to the shape and size of the ear of the wearer.

The length of the temple is readily adjustable, through the structure described, by mcving the loop into or out of the socket, that is to say, by screwing the rod 13 along the reduced bore portion of the socket. To retain v the loop and socket member in fixed set position, I provide a locking latch 19 comprisingl a flat tongue extending in a plane containing the axis of the rod, and movable through a longitudinal slot 2O in the wall of the socketinto 90 one of a pair of longitudinal slots 21 and 22 (Fig. 4) formed in the rod 13 to lock the rod in the socket against rotation. The latch retreats into the slots, and when in latching position its outer face is flush ywith the pe- 95 riphery of the socket. The latch 19 is hinged by a pin 23between a pair of slightly projecting ears 24 formed integrally with the socket on each side of the slot 20 thereof.

The latch is preferably provided with a tapered end 25 adapted for engagement by an operating member such as a finger nail or pointed implement that may be projected into the slot, for swinging the latch out of locking position.

A depression 26 in the socket is further preferably provided for more convenient access to the tapered end of the latch.

Attention is called to the provision of two slots in each rod 13 at right angles tothe plane of the curved portio-n so as to eliminate the necessity of providing separate right and left temple portions, one slot being used When the loopv is placed in the right socket and the other When inserted inthe left socket,

' so that the curved ear portion will always be projecting in the right direction.

In adjusting the temples constructedas described, a finger nail o-f the operator is inserted under the tongue-like latch to swing the tongue back out of engagement With the threaded rod so that the loop member may be turned in the socket to effect the desired adjustment as toy length. lWhen the desired adjustment has been made the latch is swung back into locking position With the threaded rod to again lock the rod from turning in the socket.

Adjustment of the curvature of the bow is effected by adju-sting the cylindrical nut as abovey described.

It is apparent, therefore, that standard temples are provided which may be adjusted as to length and curvature of the loop to iit any patient; and the adjustment may be readily altered by Vthe patient himself at his pleasure, both With reference to the length of the temple members and the curvature of the loops, for comfort and efficiency. 'Glasses or goggles so adjusted Will, therefore, not only fit theWearer more comfortably, and be supported more firmly, but will be stably supported during Wear in the'position for which they are designed to improve vision.

What I claim and desire to secure by Letters Patent is:

1J. In a device ofthe character described, a temple member, a loop member adjustably engaged With the temple member and including a resilient Wire, a bolt head on the outer end of the Wire, a button screW-threadedly movable on the bolt head and including a portionmovable over the Wire adjacent said head, and a longitudinally eXtensible member mounted on said Wire and tending to eX- tend, said extensible member conferring curved character on the Wire proportionate to its extension, and being engageable with said button portion for retention in a desired Wire-curvin g position.

2. VIn combinationv With a spectacle frame, temples connected With the frame, each comprising a socket having a reduced screwthre'aded inner end, and having a longitudinal slot extending through the socket to the inside thereof, a temple member having a screw portion threaded into the socket, the screw portion having longtiudinal grooves registrable With said slot upon rotation of said temple member, and a latch pivotally mounted in the slot for engaging in one of vsaid longitudinal grooves to retain the parts in Vadjusted position.

3. An adjustable tongue for spectacles including a tubular socket, a spiral member,

and means adjustably Aretaining the spiralmember in engagement with the socket including .a resilient Wire extending through the spiralmember and anchored to the socket, means engaging the inner end of the spiral member to anchor the same against movement on said Wire toward the socket, a threaded head-like member on said Wire having greater diameter than the same, a button threaded on said head elongated to provide a threaded area of substantially greater eX- tent than the head, and means on said button movable over the Wire adjacent said hear forming an abutment to receive the outer end of the spiral member.

A device of the character described, including a pail1 of tubular bars, each having threaded bore portion and a longitudinal slot f communicating with said portion, latches pivoted to said bars to move to and from said bore portions through said slots, and a member havingone end curved to form an ear loop and an opposite cylindrical end portion threaded to rotatively engage in the threaded bore portion of either one of said bars and provided With a plurality of parallel longitudinal grooves spaced circumferentially ofV said member and having substantially the same Width as said slots' to selectively' receive they latch of thebar in which the member may be mounted.

In testimony WhereofI affix my signature.

FRED A. POLLMILLER,

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