US1638383A - Vacuum-creating instrument - Google Patents

Description

A 9 1927. A g F. v. WINTERS VACUUM CRATING INSTRUMENT Filed Feb. 9. 1925 2 Sheets-Sheet l vide fa deviebf simple; construction; easily" Patented Aug. 9, 1927.

. EBEDERICK 1r.E WINTERS, or NEW YORK. N.. Y.

vacuiuirfeae'rme INSTRX'IMENT,

'l 'The finventionirelatestovacu'um creati-ng instumets,"'and has "for its object to -prooperated to create'afvacu'um space, Y

A further bjcctuislto; provide a device that will reduce the tnospheric'nir l'therein or in"a1"jz`rr'coiitaiingpreserves, 'orthe like, at the t-ime of operating the device.` Y

"- Kfuirthe lobject "of the" invention isv to provide a 'devine-*of rthis character adaptable especially Ator "use Wheref'culinary tonsareff'bderately carried out, :and infthe' sane'may bevellciently operated with`v i 'e'xrise'bf special'knoivledgefor skill.:` l

'A further' this'charcter, featured by "the lack of coin- Iplicated "parts"s and' 'inech'anism` 'which invo'lves'but few' parts; 'all so' constructed 'and assembled as to n'i'ihiliiize the opportunity .for Wear, breakage or derangement,which may beheasilylclenedad at all 'times maintained in sanitary condition,- and vvhich will prove-'highlyet'eetive in use." v(In the drawings: i y l igure 1 is' a; vertical' sectional view taken through 'a 'vacnunr creating vinstrument. constructed inaccoi'da''ce lWithl-the' invention and' -illustratii'i'g 'the parts'f'in the lposition they `vill assum"i\'hen"thedevice is ready for operationf "FigurefZ isaA similar view showing the parts 'inlthe 'position they will assume just priorto the breakingr of the 'vacuum seal,` and Figurel is'atopfplan view of 'the iinproved vacuum creating Finstrument.

Referringnow more particularly (o the drawings, l'the inven'tion iseaiied out by the use of a shell 4, which may bc termed the inner shell or receiving compartment, the same being ot substantially' cup shape With the side walls thereof disposed preferably at right angles to the base. This Shell is surrounded by a liquid Column` the same being established and maintained by providing an exterior or outer shell 5 for the inner shell. The outer and inner shells are concentric with each other so as to provide a space of equal breadth entirely around the inner shell. The shells thus assembled may be secured to a suitable base or platform 6 by passing screws, bolts or other retaining implements 7 downwardly through the bottoms of the said shells and anchoring the Same in the base 6. The latter is recessed in its under tace as at 8 to accommodate the Objectis to'provide a dev-ice of i bolt'and the bottom of shell 4, so that thesev gaskets, iprefembly of rubber, will make a liquid qand airtig`ht seal at the point of con-' netion of the shells Awith the base. The inner shell LL'may have a pad 11 of soft material positioned in the base thereof .and upon which the jars 12 of glass oi' other material may irest.' Such a 'pad affords a. proper support for the 'jars and prevents breakage of 'the sanfte should they be accidentally dropped. The under face 'of pad 1l may he recessed as at 13 for .theaccomodation of the heads of bolts l7. l

' Associated with the nested shells thus described is a .dome or bell 14. This dome is su'bstantialy similar in construction to the shell 4-.5, being of slightly greater diameter than the inner shell and ot' slightly1 less diameter than the outer shell. This dome '14 'is disposed' 'in linverted position over the nested shells so that the side walls thereo'f extend down into lthe space between shells 41-5.

'llhe upper 'end or head ot' the dome 14 'is provided witlrga valve 15 o'f such character as to 'permit escape of air from beneaththe dome when the latter 'moves down, but )revents air gaininggaccess tothe vinterior on the dome when the latter vis moved upwardly. Various forms or types of one-way or check valves may-'lie used 'for this result7 and the valve l5 herein disclosed `is yot conventional type. 'The upper end or :head of the dome is provided with a handle 'll for convenience in Ahandling.

The dome 14 is provided upon its sides at dianletrically opposite pointsl with outwardly extended headed studs 17, carried by blocks 1S secured to (he sides of the dome, and these studs are adapted to be engaged from beneath by the outer extremities of thc yoke represented at 1f). 'lhis yoke is pivoted as at 2O to the upper ends oit standards or supporting members 21, and the opposite end of the yoke is provided with an operating:T handle The upper surfaces of thel yoke arms 19 may be channeled or recessed as at 23 to permit the removal of dome 14, and a limited degree of lateral sliding movement ot' studs, 17, while the dome is being operated.

In operating, the jar containing the commodity to be preserved. is placed Within the shell 4. T he cover of this jar is provided with a valvic, such'as represented {generally' at 24. This valve permits of air escaping from the jar, but is readily seated andseals the opening in the cover whenthe atxnosf pheric pressure presses downwardly upon the said valve, as the dome 14 is'bemg moved upwardly and vacuum is presentin said dome. The valve herein 'shown 'is for the purposefofillustration only, and such valves may assume forms or constructions. The space Ibetween'shells 4-5 is then supplied 4 .witlra suitable @predetermined quantity of liquids, such fas water, whereupon 4 the dome l1 4 isfmoved downwardly, so thattheedges thereof enter the spacebetween the shells 4-5 and extend into the liquid, the

latter `represented at 25,'. Duringv this downward movement, nearly all the` air trapped, or said dome will escape through the said valve. 15 The ends of the Ayoke 19'v are ythen engaged 5 beneath the ',stu'ds -`17, and downward movement fis applied tothe handle 22.

This 'caus esthe` yoke to lmove upwardly, carrying with it thc ,dome -14. This upward movement of dome 14 enlarges the vacuum space ywithin the chamber thus formed, by

shell 4., and astlie .dome l14 is raised or moved surrounding said jar. .The reduced atxnosupward,l saidv space isycorrespondingly increased.` A

.D ue to lthis out through valv e,24 into the vacuum spacel pliericl pressure and lthe created vacuum in said dome 14,`causes the outside atmospheric pressure vto exertitsnatural Jforce upon the surface of the liquid 25, and said liquid will vbe forced downward ybetween shell 5, and the dome wall 14,'and `upward between shell 4 and theinterior dome wall, .as shown particularlyin Figure 2, at the instant the lower edge orcnd of said dome 14 is raised above A.the 'liquid scal,25,the normal atmospheric pressure causes atmospheric air to enter said.

created lvacuumspace between the: interior wall of dome 14 and the exterior wall of shell 4, and closes and retains closed, valve result, air inthejar 12 passes.

of construction of the cups or shells and` dome, their manner of. assemblage and operation, may be liberally resorted to, without departing from the spirit ofthe invention, as defined by the claims.

Having thus described Iclaimis:j A 1. A .vacuumA creating -device comprising an innershell for inclosing a preserving jar,v an outer shell surrounding said inner shell, defining a space therebetween adapted to be.4 partly filled with a sealing fluid7 anda dome: inclosing'saidinner vshell and'adapted to be reciprocated in said space and normally having its lower edge submerged 1n said 4sealing fluid, the elevation of said dome operating to break the liquid seal when the bottomv edge thereof is raised above the level ofthe fluid in the space between said dome and.

said outer shell.

my invention, what` 2. A vacuum creating device comprisin an inner shellfor inclosing a preserving ]ar an outer shell surrounding the innershell,

defining a space therebetween adapted to be partly filled with a sealing fiuid, a domein closing said .inner shell and adapted to be-l reciprocated in said space and normally having its lower edge submerged in said sealing fluid and means for elevating said dome, said dome upon elevation having its bottom edge coacting with the level of the fluid in the space between said dome and said outer shell to break said liquid seal.

In testimony whereof I have signed my name to this specification.

FREDERICK v. WrNTnRs.

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