US1412520A - Optician s multipliers - Google Patents

Description

P. N. HANSEN.

OPTICIANS MULTIPLIERS.

APPLICATION FILED MAY 26, 1920.

Patented Apr. 11, 1922.

1271591350 1 /2171 N m p PATENT OFFICE,

PHILIP N. HANSEN, OF LOS ANGELES, CALIFORNIA:

OPTICIANS MULTIPLIERS.

Specification of Letters Patent.

Patented Apr. 11, 1922.

Application filed May 26, 1920. Serial No. 384,484.

To all whom it may camera: 7 Be it known that I, PHILIP N. Hansen, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Opticians Multipliers, of which the following is a specification.

An object of this invention is to provide a novel plier by means of which an Optician may perform numerous operations, for which, in theart as heretofore existing, it was necessary to employ anumber of dissimilar pliers; thus requiring the artisan to change from one plier to another in the operation of conforming the spectacle bridges,

frames, studsand straps to a required position and in making the bends necessary to the 'purposeof. proper adjustment of frames and le nses.

"An object is to provide pliers by which an Optician may make'various bends as above suggested without the use of any other pliers. Y

. An objectof this invention is to provide a plier for-the use of Opticians in cases wherefduring the operation of making va- .rious bends, the material on which the plier [is used, has heretofore been likely to escape the grip of the instrument, thus causing breakage-of lenses. An object is to provide a superior bridge rolling plier in the use of which the material being bent cannot slip through the jaws of the plier. An object is to prevent I the usual: loss from breakage which is caused by using pliers heretofore known for making such bends. That is to say, heretofore an opticians bench required numerous pliers each of which was required for some specific use, and in the general practice of skilled workmen with such pliers it has frequently occurred not only that lenses were broken due to insecure hold on a bridge, causing a lens to snap when the the pliers may also break the shell of gold that covers the base metal, thus allowing corrosion and possible injury to the wearer. The breaking of such shell makes it neces .sary to replace the bridge with a new one.

-fI have discovered that these difiiculties may be overcome by means, which as will hereinafter be more clearly shown, is com prised in a single simple pair of pliers; and the invention herein set forth is broadly new, basic and pioneer in that it comprises pliers having elongate taper jaws, the tip of one of which jaws extends beyond the tip of the other jaw and is bent to form a detent adapted to extend in front of the tip of the other tapering jaw when the pliers are closed upon a spectacle bridge, or end piece when al-inement of temples is necessary, and. close enough to such tip of the other'jaw to intercept the part thus held and to prevent slippage of the tool from. such part.

A further feature of the invention conslsts in constructing jaws of the character just set forth, with an open space between the bent tip and the end. of the other tip when the pliers are closed upon a strap, so as to. .accommodate the. shoulder of the strap and allow the pliers to be used in widening the'strjap when the pliers are held in oneposition; and if the pliers are reversed, it mayalso .be used to narrow. the width of strap in the same manner as is common with bending and shaping pliers heretofore known.

This invention relates to the specific construction of the jaws of the pliers.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detail description and the appended claims.

The accompanying drawing illustrates the invention.

Figure l is a fragmental side elevation of the pliers closed.

Fig. 2 is a section on line m, Fig. 1, looking down.

. Fig. 3 is a transverse section on line w'"'m, Fig. 1 looking down.

Fig. 4 is a transverse section on line mw Fig. 1, looking up, the jaws being slightly open.

Fig. 8 is a view of the pliers holding the post of a stud.

Fig. 9 is a view from the right of Fig. 8, the post being sectioned on line 5/)".- Fig 8.

Fig. 10 is a view illustrating the use of the pliers for widening a strap.

Fig. 11 is a view of the pliers in narrowing a strap.

Fig. 12 is on the scale of Fig. 10, showing the inner or opposed faces of the two jaws; said. jaws being detached from each other and placed side by side for comparison.

The pliers are constructed with the usual handles 1, 2 crossing each other at the usual pivot 3 and terminating respectively in taper- like jaws 4, 5; said jaws being reduced from heel to tip. The jaw & is of a general conical form being substantially circular in cross section from heel G to tip 7. The jaw 5 is semi conical and has a flat inner face 8 opposed to the convexity of the concial jaw use for 4;. Said jaw 5 is of greater length than aw 4 and the fiat face 8 extends from the heel 9 to a detent lip or hook 10 which is made by bending over the tip of the longer jaw 5;

said hook or detent being adjacent to but spaced apart from the tip 7 of the'conical jaw to form a narrow recess 11 between the tip and the detent when the jaws are fully closed as indicated in Fig. I;

The jaw 4 is externally reducednear its tip as at 12 and the aw is likewisereduced at 13, thus fitting the instrument for insertion into the narrow limits of the spaces into which the tips must enter .in bending the strap and handling other parts of the spectacle mounting. V

The face 8 and detent 10 combine to form an angle that is approximately a right angle inside corner 14 slightly spaced from the tip 7 which terminates in a flat face 7 opposed to the inner face of the detent 10.

It is thus seen that in grasping any part of the spectacle mounting. one side of the part grasped may be held by one or more flat surfaces; and that in grasping a part which is wider than the recess 11, it is im possible for the pliers to slip from the part thus grasped;- and yet the likelihood of marring'the part grasped is minimized.

In rolling a bridge as indicated in Fig. 6 the round conical jaw t is adapted to give appropriate form to the bridge without abrading or marring the same, and there is no possibility of slippage.

In grasping the post as indicated in Figs. 8 and 9, tip 7 forces the post into the angle let as indicated in Fig. f), thus giving'a perfect grasp upon the post without inarring the same.

hen it is desired to widen the strap, the flat faced jaw 5 with its detent 10 is placed on the outside, and the conical 4 on the inside of the strap in such position that when the pliers are closed on the strap, a

shoulder of the strap will be formed closer to the post; the tip 7 cooperating with the inside corner 14 to this effect.

When it is desired to narrow the strap, the flat faced jaw 5 and its detent 10 are placed inside the recess of the strap and the conical jaw l on the outside thereof; then by closing the pliers, the strap is bent inwardly by the tip 7.

As clearly shown in Fig. l the opposing faces 8 and 15 are spaced apart when the tips of the jaws are engaged with each other, thus leaving a clearance between the jaws. The Hat face 8 is slightly bowed from heel to tip so that the portion of the face adjacent the book 10 may be in practical parallelism with the opposing portion of the conical when the pliers are closed upon astrap as indicated in Fig. 9.

I claim:

l. A pair of bridge-rolling pliers having one of its jaws coneshaped and the other provided with a flatinner face extending from heel totip; said flat faced jaw being provided with a lip at itsen d to secure its hold during the operation of making various bends and adjustments. 1

2. A pair of .pli'ers'havingione ofits jaws in the form of a cone and the other a longer semi-conical jaw, formed with a flat inner face, said longer jaw being bent over the end or point of the conicalj aw to provide'a lip or hook which will prevent slippingof the article held. I 3. Apair'of bridge-rolling or'stu'd pliers having a conical jaw and a semi-conicalflat inner faced .jaw'terminating in a hook or lip, th'erebeing a space between said lip and the tip ofthe cone, and said jaws being externally reduced near their tips forthe pur-' pose specified.

Opticians pliers comprising two taper jaws reduced from heel toward the tip, one of said jaws being conical and the other of said jaws being semi-conical and having a substantially flat inner face opposed to the round inner face of the conical jaw; said substantially flat faced jaw terminating in a hook extending in front of the tip of the conical jaw; and said jaws being spaced apart whenthe tips of the jaws are engaged with each other so as to leave a clearance therebetween.

5. Opticians pliers having a j aw' circular in cross section and a jaw having a flat face opposed to the round face of the other jaw; tl e flatfaced jaw having a hook at its tip in front of the tip of the round jaw; and said fiat faced jaw being slightly bowed from heel to tip on its inner surface so that the portion of the jaw adjacent the hook may be in practical parallelism with the opposing portion of the circular jaw.

6. A. pair of pliers having one'of' its jaws in the form of a cone and the other being semi-conical and having a fiat face opposed to the convexity of the conical jaw; said semi-conical jaw being bent so as to form a lip 01- hook which extends at rightangles to said flat face and is adjacent to but spaced apart from the tip of the conical jaw; said jaws being externally reduced near their tips; and said aws being spaced apart when the tips of the jaws are engaged with each other so as to leave a clearance therebetween. 10

In testimony whereof. I have hereunto set my hand at Los Angeles, California, this 21st day of Way, 1920.

PHILIP N. HANSEN. Witness:

JAMES R. TOWNSEND.

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