US20436A

US20436A - Hinge foe daguerreotype and other cases

Info

Publication number: US20436A
Authority: US
Publication date: 1858-06-01
Anticipated expiration: 1875-06-01

Description

UNITED STATES PATENT OFFICE.

E. G. KINSLEY AND S. A. W. PARKER, JR., OF STOUGHTON, MASSACHUSETTS.

HINGE FOR DAGUERREOTYPE AND OTHER CASES.

To all whom it may concern:

Be it known that we, EDWARD G. K1Ns- LEY and SAMUEL A. IV. PARKER, Jr., of Stoughton, in the county of Norfolk and State of lllassachusetts, have invented an Improvement in Connecting the Two Halves or lJarts of Daguerreotype or Picture Cases; and we do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of whichm Figure l exhibits a daguerreotype or picture case entirely open and having its two parts united together by hinges in our improved manner. Fig. 2, is a longitudinal section taken through the case under such circumstances. Fig. 3, is a top view, and Fig. el, is a side view of one of the hinges. Fig. 5, is a section taken through the two hinges and that side of one of the halves of the case through which such hinge is passed.

The kind of daguerreotype or picture case for which we have particularly devised our improvement is that which is well known as being made of a composition which when heated. becomes plastic and can be pressed in a mold. each half of the case being constructed of such material and by such a process.

In the drawings. A and B denote the two halves of a picture case of the above mentioned kind they being united together by hinges C, C, each of which is constructed of two leaves a, having circular projections o, o, which lap on one another and turn on a joint pin (Z, extended through them and kept in place by heads or washers e, c, arranged as shown in the drawings. Furthermore, each leaf (formed as shown in Figs. 3 and 4,) extends through the side y, of each half of the box and against the inner surface of the end 7L of the said half, or against such inner surface and the inner surface of the bottom platee', and is fastened to the end, or to the saine and t-he bottom plate by one or more rivets as shown at 7c, 7c. Then a hinge is so made and applied to the box, it will not be fastened to what we term the sides of the box, but will be entirely independent thereof. Consequently, the

strain on the hinge during the act of opening or shutting the box, will be completely removed from the said sides in a direction at right angles to their inner surfaces.

Therefore, the leverage or strain which is often brought upon the hinge after the halves of the box have been entirely opened so as to be brought in contact with one another, will have no tendency to break either side or any portion thereof. Furthermore, as the hinge extends through the side and a gainstthe end of each half and rests against them, the notch through which it passes serves to support the hinge in lateral directions. So, in consequence of the main portion of each leaf of the hinge being arranged parallel to and against the inner face of the end of that half of the box to which it may be applied, the strain produced in opening or closing the hinge, will be borneby the hinge edgewise of the leaf or to the best possible advantage.

Our hinges are not liable to work loose and when applied to a box, hold its partsI together with a great degree of firmness.`

IVe do not claim a hinge of common construction, or one having cach of its leaves bent at a right angle in order that it may be inserted in a mortise made in the side of a case or box. Nor do we claim so applying a hinge to a daguerreotype or picture case molded of a plastic materia-l or made of a frangible substance or substances, that such hinge may have each of its leaves bent twice and so applied to the halves of the box as to embrace two contiguous sides of them and be independent thereof, or not have any tenon or projection to enter the same but extend or lap over and be fastened to the top and bottom parts of the said box, but

What we do claim is- Our improved mode of arranging and applying the hinge with reference to the side and end or the end and the bottom of either half of the box, that is extending the hinge leaf through the side of the half and against the inner surface of its end or the same and the inner surface of the bottom and fastening such leaf to the end or to the end and bottom, the whole serving to attain advantages as hereinbefore specified.

In testimony whereof we have hereunto set our signatures.

EDWARD Gr. KINSLEY. S. A. W. PARKER, JR. lVitnesses z J AMES MEARS, GEORGE WV. HUssEY, ALBERT DICKERMAN.