US1307356A - Rectangular museum-jar - Google Patents

Description

- The object is tojar; Fig. 4 is a plan UNTED STATES PATENT OFFTQE.

RECTANGULAR MUSEUM-J AR.

' Specification of Letters Patent.

Patented June 24, 1919.

Application filed October 16, 1918. Serial No. 258,403.

To all whom it may concern:

Be it known that I, FRANK L. HINKLY, a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Rectangular Museum-Jars, of which the following is a specification.

This invention relates to museum jars. rovide a museum ar which can be easily fa ricated, which exposes the specimen therein wlthout distortion, which provides simple and convenient means for suspending the specnnen 1n the jar, and wlnch possesses other advantages which Wlll be apparent from the description following.

Museum jars for containing pathological and other, natural specimens have heretofore been made by blowing the same in a mold, and even with the most careful and expert workmanship, such jars have walls whose inner surfaces are not straight plane surfaces, but are. more or ing a lens effect which results in the distortion of the view of the speciinencontained therein. Such jars were not provided with means for suspending the specimen, the latter having been supported or suspended by frames erected within the jars, which frames frequently get out of proper position, allowing the specimen to fall to one side, and also to some extent obscure the view of the specimen. 7

The improved museumjar is intended to overcome these and other faults in such jars, by the construction hereinafter described and claimed.

In the accompanying drawings Figure 1 is in part a side elevation and in part a vertical section through one of the new museum jars; Fig. 2 shows the upper portion of the jar in end elevation; Fig. 3 is an insideview looking toward one of the end walls of the view of the body of the jar, with the cover removed; and Fig.5 is a sectional view through the upper part of the jar showing a modification.

The improved jar has its body 1 formed of glass shaped by a pressing operation, by a plunger operating in a mold or die, in the usual manner of making pressed articles. The consequence is'that the vertical walls of the jar haveperfectly straight plane surfaces both inside and stantially uniform thickness from top to bottom, although in order to withdraw the plunger there must be a slight taper to the less curved, thus givoutside, and of sublatter, as understood. This body after pressing is subjected to a fire finishing operation, to glaze its surfaces both inside and outside and nrake the same transparent. The consequence is that the jar has transparent walls which are free from curvatures or waves so that the contained specimen will not be distorted, as is the case with blown jars' The body is of rectangular form in horizontal section, and at its top is provided with an external band 3 giving increased thickness atthe top and providing a widened seat 4 for the cover 0. The latter also is formed of glass pressed to shape to provide a downwardly projecting rib or flange 6, at its periphery, having a flat lower face, which face and also the seat 4: are afterward ground to perfectly flat form, in order to get a tight seal of the cover on the body with a minimum amount of cement.

The pressing plunger will also be provided with protuberances forming recesses 7 in the upper edge of two of the opposing walls of the jar, on their inner surfaces, which recesses serve as seats for glass or metal rods or frames S-from which the specimens are suspended or on or in which they are supported, so that said specimens may be attached to the support and then lowered down in the jar and held securely in place, without liability of their tipping to one side, and without obstructing the view of the specimen. 1 Opposite these recesses 7 the thickened portions or faces of the jars are shown at 9, in order strength at these points. ber of such recesses may be formed in the opposing walls of the jar. Figs. 2 and 3 show one such recess and Fig. 4: shows three such recesses in an end wall of the jar, but obviously one or any greater number in each wall may be provided.

The cover 5 is of the same size as the top of the jar, and when fitted thereon does not project beyond the same, but makes a neat fit thereon and is substantially a continuation of the upper portion of the body. This cover is provided with an opening 10 for supplying or renewing the preserving liquid in the jar. Preferably this opening will be tapered, as shown, and in order to give the proper length to said opening for sealing as hereinafter described, and also to strengthen the cover at this point, said carried downwardly, as to glve the necessary Any deslred numis shown and as will be readily bands 3 on the outer surserving liquid then *cement. With prior specimen is seen without distortion.

tially filled with preserving liquid, the cover then sealed in .place, and the remaining presupplied through the opening 10. In this way no preserv ing liquid is liable to splash onto the cover seat, but the latter can be kept perfectly dry and thus insure a thorough adherence of the forms of jars, not having a filling opening, the jars had to be supplied with all the preserving .liquid before the cover was sealed on, and it was diflicult to keep the liquid from splashing onto the seat for the cover, as a consequence of which difiiculty was experienced in getting a proper seal.

Fig. 5 shows a modification in which the cover 5 is inset, this being effected by providing the walls of the jar on their inner faces, entirely around the jar, with a rabbet or recess 14, providing a ledge 15 and having the cover set into this rabbet and resting upon this ledge and having its top surface flush with the top surface of the walls of the jar. Cement'or other sealing material is applied upon the-ledge 15 and around the periphery of the cover. If desired the ledge 15 can be slightly undercut, as shown, in order'to more securely retain the cement or other sealing material. WVith this modification the upper portion of the walls must be made somewhat thicker than with the form shown in Figs. 1 to 4, as will be obvious.

The jar described has transparent walls having straight plane inner and outer surfaces so that there is no lens effect and Ttlhe 1e supports for suspending the specimens are firmly held in position so that the specimens must always maintain their proper position in the jars. The arrangement for securing the cover provides for a ifirm sealing of the cover in place, and at the same time leaves the top of the jar neat and free from any unnecessary projections. Means are also provided for supplying or renewing the preserving liquid, and the jar as a whole is strong, being thickened at points where weakness might otherwise exist. Both the Copies of this patent may be obtained for five cents each, by addressing the side walls with recesses opening at substantially a perfect product.

What I claim is- 1. A glass museum jar of rectangular form comprising a pressed body provided in its inner surface at the top of opposite the top of said walls and forming seats for specimen supports.

2. A glass museum jar of rectangular form compnsmg a pressed body provided 1n 1ts lnner surface at the top of opposite side Walls with recesses opening at the top of said Walls and forming seats for men supports,

specisaid walls being thickened on their outer surfaces at said seats.

jar of rectangular form comprising a pressed body externally thickened at its upper end and there provided with a coverseat, and provided in its inner surface-on opposite sides at the top with recesses opening at the top of said body and forming seats for a specimen support, and a pressed glass cover having a rib or flange on its bottom surface fitting said seat.

4. A glass museum jar of rectangular form comprising a pressed body Whose surfaces both inside and outside are straight plane surfaces, fire polished to transparency, and at its upper-end being externally thickened and provided with a plane ground broad cover seat, and a pressed glass cover pending flange fitting said seat.

Intestimony whereof, I have hereunto set my hand.

FRANK L. HINKLY.

" Commissioner 01' EPatents,

Washington, I). G.

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