US1770431A - Ham boiler - Google Patents

Description

July'l5, 1930. RISPEL El AL 1,770,431

I HAM BOILER F1101 Oct; 2, 1926 v fem/liar; I fllezazzclei-fizispel 122 H I x 40w 6 zldf/{e 10 1 Mi! I 35 on the cover.

Patented July 15, 1930 UE'E" sTATEs PATENT i E ALEXANDER nIsPEL hm) Louis o. 'Lriin'rxnor cnrcAeo, ILLINOIS- HAM BOILER Application filed ctober 2; 1926. Serial No. 139,040.

' Our invention relates to an improved ham boiler, embodying, among; other features:

First immunity from jolts'and jars'both 'Figure 1 is a central, longltudinal section,

partly in elevation, of

the invention; j Y s l Figure 2 is-a section on line 2 2 of Figure. 1; and

one embodiment of .urel. l 1 In the embodiment of'the invention se- 1 2 lected for illustration the container receives a ham, orother material to be cooked, while under resilient pressure, which "pressure is'applied by means of the cover 12 telescoping inside the receptacle. For applying the resilient pressure we employ coil springs 14 located at extreme ends of'the cover on. the longitudinal centerline of the boiler. The

lower ends of the springs are preferably held I fchine screws46. Y In use; the ham, or. other article to be 85v qcooked is placed in the receptacle andthe -coverjset on top of it. It is now necessary to push the abutments 18 down andmc'omagainst accidental displacement by bosses 16 :At the topof'eachs'pring an abutment member 18 held against displacement with respect to the abutment 18 in thesame way as the lower end a 0 of the spring, butweprefer to employ Va -stud V rmovement gIn large installations this is 20' extending down part away inside the spring. When such a'stud is, employed is preferably made square to reduce the area. of

contact between the stud and the coils of the 1 apress is-used'an ignorant workmanmay,

- and s'oftenpdoes, apply f' the pressure much spring and minimize friction; g i

" The means for hold'ng down the-abutments 18 comprises 'a-tension member, or holddown I ii a 22 for each'a'butment, :Ea'c'h hold-downcom- I V .usually-pushingharder-:againstthe: middlea I f :,the cover than'the endsat first, there is 9] prises a relatively straight portion 24 provid'ed with a seriesof rack teeth 26 adapted'to almost, but notquite, to the center. line of the Figure 31s a section on of Fig- The top of the spring maybe jplate or beam down from above to engage hook over the tooth 28 on the edge of the re; ceptacle and prevent'upw'ard movement of i I the tension member; and'a' curved portion 30 extending in over the end of the cover 12 55 spring 14. The tension members has a .bi'furc'ated. end pivoted on' a pintle 32 passing 7 through theabutment 18'.

To guide the' parts and hold them in satis I I factory alignment, without interfering with the freedom of motionnecessary to permit if the contents of the receptacle to expand and contract during treatment we providea vertical guidejSt close beside each spring. The

.guide 3-it preferably has an'H section rather well fill-ed in andslides in a vertical guide way 36. The side walls of this guide-way are 2 cut awayjat 38, partly to savemetal and facilitate cleaning and partly to afi'ord aslot for receiving a limit stop 40, illustrated as a simple machine screwpassing through the lpwer end of the guideand projecting into the sot. t y.

'lio brace the structure and increase its ri idity, we prefer to connect the guide-ways 36at opposite ends of the boiler by a beamor reach 42, thereby constituting both wguideways and the reach a rigid bridge materially I reinforcing the cover12. The'feet of the guide-ways are moreor less enlarged, as at w 4:4, to engage the surface of the cover over a 7 substantlal area,- and the whole is fastened to the cover in any suitable way', as by ma press the springs whilethe tensionvmembers ride over'the teeth 28 andprevent return' done in'a power 'pressvwhic'h moves a flat 0th abutments simultaneously; WVhen such more vigorously thanis necessary orfdesir- I .7 able; Asl'the contents of the receptacle is danger of breaking the cover by buckling it up in the middle when the device is thus improperly handled. It will be noted from the drawings that the distance A in Figure 1 down tothe reach 42 is equal to the clear ance between the guide 34 and the cover and also equal to the clearance between the studs 20 and the bosses 16. Thus, the abnormal and improper load will be transmitted to the cover, not only atpoints corresponding with he bosses 16 or with the ends of theguides, but also over much larger areas spaced much nearer the center of the cover, to wit, the feet 44 of the guide-ways.

On the other hand, in a smaller establishment wherecno power press is available, the complete independence of the two abutments 18 makes it relatively easy for a workman to place his foot first on one abutment and then on the other and get both springs properly compressed. The strength of these springs in a unit of ordinary size is such that a man of ordinary weight could not conveniently compress both springs at the same time by means of his weight.

The location of the springs 14 at the extreme ends of the cover results in a maximum levelingeftect, If the contents of the container tends to hold the cover with one end tipped up, say'one-half inch higher than the other, the excess in the spring tension at the high end over that at the low end will be greater and its effective lever arm longer than with the springs located a less distance fronithe center. I V

Neither the abutments 18 nor the tension members are rigid withthe cover 12, there being considerable looseness to permit the guides 34 to move freely without binding. An accidental blow from one end, as by throwing another container up against the end of container already stacked in the boilingvat, will ordinarily strike thestraight portion 24 of thetension member and have no appreciable effect other than'to push it against the tooth 28. However, if the impact should come at a slight angle from above it would strike the curved portion 40 intermediate the pivot 32 and the tooth 28. The

impact would thus be distributedbetween the body of the receptacle and the cover. lVhere, "as in prlor devices, parts rigid with the cover, or having rela'tively'little play with respect thereto, project out substantially'into the vertical plane of the straight portions 24, such impacts will always be delivered to the .cover and shift the cover to and fro in the receptacle. If they happen to be at all violent, this shift may readily unhook the tension member at the remote end of the re ceptaclec These objections are eliminated by the construction herein above set forth,-

7 'v ithout further elaboration, the foregoing vill so fully explain the gist of our inventionthat others may, by applying'current knowledge, readily adapt the same for use under various conditions of service without eliminating certain features which may properly be said to constitute the essential items of novelty involved, which items are intended to be defined and secured to us by the following claims.

Ve claim:

1. A ham boiler comprising a receptacle, a

.cover telescoping inside said receptacle,

springs near the ends of said cover for pressing down on said cover, abutments riding on the upper ends of said springs to compress saidsprings, hold-downs pivoted on said abutments, pawl and rack means acting between said hold-downs and receptacle to prevent upward movement of said holddowns, a vertically slidable guide for each spring abutment, said guides being offset beside said springs on the center line of the boiler nearer the center than said springs, a spring guiding stud on each abutment, projecting down inside the spring to keep said spring in alignment, and a bridge rigid with said cover, said bridge comprising a central reach, vertical end portions slidably receiving said guides, and enlarged feet at the bottoms of said end pprtions, said feet resting on the cover, and said reach extending up to such a level that a straight implement employed topressdown said abutment will strike said reach at the same time that said studs and said guides engage said cover, and a stop for each guide preventing complete separation of said guide and cover.

2. A ham boiler comprising a receptacle, a cover telescoping inside said receptacle, springs for pressing down on said cover, abutments riding on the upper ends of said springs to compress said springs, hold-downs pivoted on said abutments, pawl and rack means acting between said hold-downs and receptacle to prevent upward movement of said hold-downs, a-guide for each spring abutment, and a bridge rigid with said cover, said bridge comprising a central reach and vertical end portions slidably receiving said guides, sald reach extending up to such a level that a straight implement employed to press down said abutments will strike said reach-at the same time that said guides enrespect to said cover, ofiset tensionmembers 'pivotedon said abutments, and tooth and rack means on said tension members and receptacle for holding said tension members down, said tension members and guides being offset substantially equally on opposite sides of'said-springs along the center line of the boiler.,i r

4. A ham boiler comprisingafreceptacle, a cover telescoping inside said receptacle, springs ridingon said cover, abutments rid-. ing on said springs, and connections for holding said abutments in place comprising offset guides rigid with said abutments and, vertically slidable'with respect to said cover, and ofi'set 'tens'ion members pivoted on said abutments, andtooth and rack means on said tension members and receptacle for'holding '7 said tension members down, said tension members and guides being offset on opposite sides of said springs. V r Y 5. A ham boiler comprising a receptacle, a cover telescopinginside said receptacle, springs ridingon said cover, ab utments rid ing on said springs, and connections for holding said abutments inplace comprising abutment guides, offset tension members, pivoted on said abutments, and tooth and rack means on said tension members and receptacle for holding said tension'members I down, said tension members and guides being offset on opposite sides of said springs.

6. A ham boiler comprising a receptacle,

a cover telescopically movable toward and away from said receptacle to compress maso teria-l between itself and the receptacle, re-

silient means symmetrically'placed near the ends 0t said cover for pressing down on said Ieceptacle, tensioning means, and means for Y limiting zthetension, said limiting means as establishing a direct thrust connection to the cover over two distributed symmetrically placed areas thereof extending nearer to th center than said resilient means.

'7. A ham boiler comprising a receptacle, 40 a cover telescoping inside said receptacle, a centrally located reach rigidly mounted" on." and bracing saidcover,.and resilient means 7 located at the ends of said reach and leaving the space above the same free and unobstruct- 7 ed, for connecting said receptacle and cover and pressing said cover down. i V In witness whereof, we hereuntosubscribe our-names this 28th day ofSeptember, 1926. 1 I I ALEXANDER RISPEL. f V LOUIS C. LIEDTKE.

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