US1502967A - Ice-cream-overrun tester - Google Patents

Description

July 29; 1924. 1,502,967

f H. H. SOMMER los CREAM ovERRUN TESTER.

Filed Nov. 1 2. 1921 MEMUP y HUGO. 55m/A151?, By M A TTHNEYS Patented July 29, 1924.

UNITED STATES HUGO HENRY SOMMER, 0F MADISON, WISCONSIN.

ICE-eR-EAM-OVERRUN TESTER.

Application Ied 'November 12, 1921. Serial No. 514,705.

To all whom t may concer-n:

f Be it known that I, HUGO H. SOMMER, a citizen of the United States, and a resident of Madison, in the county of Dane and State of Visconsin, have invented a new and use ful Improvement in IceCreamOverrun Testers, of which the following is a full, clear, and exact description.

My invention relates to improvements in ice cream overrun testers, and it consists in the combinations, constructions and arrangementsiherein described and claimed:

An object of my invention is to provide a device of the character described in which a. directreading in per cent of overrun of ice cream mix 1s given. v

A further vobject of my invention is to provide a device of the character described havingV a moving' scale, .the reading from which may always be taken from one point on the device.

A further object of my invention is to provide adevice of the character described, having a cup for receiving ice cream mix to be tested which is readily accessible, and in which the remaining parts of the device are entirely enclosed. A further object'of my invention is to provide a device which may be adjusted for different sizes of cups and for ice cream mix of different specific gravity.

A further object of my invention is to provide a device which is eflicient in op- .eration and which is thoroughly practical commercially.

Other objects and advantages will appear in the following specification, and the novel vfeatures of the invention will be particularly pointed out in. the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application, in which- Fig. 1 is a complete section of my device along the line 1-1 of Fig. 2,

Fig. 2 is a kcomplete section of my device along the line 2-2 of Fig. 1, Y

Fig. 3 is a fragmentary view of my device showing the cup holding means,

Fig. 4 is a front elevation of one of bearing members,

Fig. 5 is a. side elevation of one of the bearing members, and

Figure 6 is a fragmentary view of the scale employed in my testing device.y

In carrying out my invention, I make the use of a metal casi-ng 1, which is adapted to rest upon a base member 2. Thumb screws 3 are provided at the Ifoin` corners of the base 4f of the casing 1 and provide means of leveling the casing.

A substantially rectangular frame 5 is disposed within the casing 1 and secured thereto by screws 6. The sides T of the frame 5 have intermediate their length and oppositely disposed to one another, bearing members 8 having agate bearing surfaces 9. Pivotally mounted on the bearing members 8 on the centers 10 is a normally vertical rod 11. The rod 11 has disposed at its lower end a weight 12 which is arranged to -be moved up and down upon threads 13 on the rod 11. At the end of the rod 11 above the center 10 is an arcuate scale bearing member 14 having its weight evenly distributed upon the end of the rod 11 by means of the short extended portion 15.

A lever 16 extends outwardly from ther rod 11 and is rigidly fixed thereto at an angle of 110O from that portion of the rod 11 supporting ythe weight 12. The lever 16 consists of two legs, each of which bears at its outer ends, bearing centers 17. Pivotally mounted upon bearing centers 17 are a pair of verticalmembers 18 forming branches of a U-shaped member 19. That the meniber 19 may always lie in a vertical plane, I have provided adjacent the upper ends thereof two pivotally mounted links 2()` which links are disposed in substantial parallel relation with the lever 16 and are pivotally connected at their opposite ends to the sides 7 of the frame 5, as shown at 21. At the lower end of the U-shaped member 19 is a. downwardly extending rod 22, which is arranged to pass through an opening 23 of the casing 1. Thel rod 22 has secured at its lower extremity a stirrup 24.

`The stirrup 24 is arranged to removably support a cup member 25.

A relatively short lever arm 26 is provided and secured in fixed relation to the rod 11 and the lever 16 so that the arm 26 lies in the same plane with the lever 16. The'lever arm 26 has pivotally mounted at its outer end thereof a downwardly disposed rodk27 to which a piston 28 is secured. The piston 28 is disposed in a cylinder 29 containing a liquid 30, the upper end of the cylinder having a relatively large opening to permit the angular 'movement of the rod 27 as the piston is reciprocated. Support for the cylinder 29 is provided by a posed at its outer end a weight 34, which weight is arranged to move back` and forhorizontal plate 31 which is secured traine 5, as shown at 32. Y

.idjacent the lever arm to the Y26 and disposed 'in parallel relation thereto Vis a rod 33 which likewiseI is in lixed relation to the rod 11 and the lever 16. The rod33 has disward on `the rod by means'of threads 35 on the outer Iportion of the rod 33. The rod lis in alinement withtlie bearing points itl and 17 so that the centers of gravity on either side otVA the fulcrum are in a line with the tulcrum Y 10.

Thescale bearing member 14 has disposed upon its upper surface a scale 36.

Y The scale is calibrated to read in per cent o overrun in tlie'ice crea-m mix. Overrun 's the increase in the volume of the frozen e cream. mix ofvertlie volume of the untrozen mix expressed as per cent of the unifi zen mix. A hair-line 37 is suspended across from wall to wall of the casing 1 and the reading is taken from the scale at the point directly under the hair-line 37.

rElie casing lis provided with an opening -havi-iigl a lens` 38 adjacent to the hair-line to assure accurate reading. in electric 'ip 39 is provided and extends within the stale V36.

'fr door l0 is'provided in the casing 1 and.AV "furnishes means `for reaching the weights 12 and 3st in adjusting the device.

From the foregoing'descriptionof the l vvariousV parts ot the device, the operation thereof may be readily understood. rlheY device .having been set up perfect-ly level, the cup '25 `is placed upon the stirrup '24 and the scale is viewed through the lens 38.A If the cup is empty, the reading on the scale l`should lbe l) Vor an. Vinfinite percentage of overrun. lf the reading is not D or infinity t per cent overrun, it is adjustedto thatread- .ing 'by means of weight. The cup 25 is now removed and filled level full (no cover is used) with the ice cream mix and re placed on the' stirrup 24. `The reading on the scale vltshould now .be zero percent overrun. It it is not zero, weight 12 is adj usted so that the reading becomes zero.

`Now having the device adjusted so that with the empty cup the reading is VD or infinity overrun, and with the cup full of the ice vcream mixv the reading is zero per Acent overrun, the device will give the reading` Vof the per cent overrun directly at any vtime during Ythe freezing process that this particular `cup is llled with this Aparticular mix and placed-on` the stirrup 241.

The piston 28 and the cylinder 29 act in this operation asa dashfpot, that is,a means for preventing undue oscillation of the f scale 86 in coming -to rest for a reading.

[To calibrate the device for cups of vari-- plane.

calculated as follows:

ing 1 for the purpose of illuminating the Y ousvolumes, the weight dei must lirst be adjusted to counter balancev the weight of the emptyrcup. The cup should then be filled with the unfrozen cream and the weight 12 should be adjusted to cause the reading on the scale 36 to be zero per cent. The l) or infinity mark on the scale 36 is so placed that it is under the hair line 37 when the rod 11 is in a vertical position.

y The zero mark on the scale 36 is so placed that it is under the hair-line Vwhen the weight12V or rod V11Y has been deflected through an angle of @L00 from the vertical weight 12 in this position as unity (l).

The moment of weight 12 necessary for. any' desired overrun V'can then be calculated as follows:

f Y 100 Y l nl f M (moment) 100+% overrun desired Y Knowing vthe moment necessary for a given per cent ot overrun we can calculate le shall consider-the moment of the necessary deflection and hence can `der-f termine the position of the graduation on the scale- 36. The deflection lnecessary is tan Xzie M-i) um 200, f

where angle is the Vangle varm 16 makes Y with the horizontal plane; fc is the angle lbetween the horizontal plane and arm y16Y when it isabove the horizontal, and-l-is the angle between the horizontal plane-v` aiidf the armV 16 when it is below the horizontal plane. f I claimz. r d

1. A device of the character described comprising a cup for holding icecream, a pivotally mounted lever `for supporting said cup, a weight for counter-balancing Asaid cup and lever, a scale associated with said lever Abearing legends designating percentages of overrun from zero to inliiiity Y'percent Vin ice4 urcated leve-r and pivotally connected to'` said U-shaped member and said supporting frame, a cup for holding a compound sus* pended from the U-shaped member, :a scale bearing legends designating lpercentage .ofY

overrun in ice ycream carried by said bifurcatedlever, and counterweights associated with the bifurcated lever for said Usliaped member and cup and for resisting movement of said bifurca-ted lever respectively.

3. A device of theJ character described comprising a supporting frame, a bifurcated lever pivotally mounted on said fra-me, a vertical -shaped member pivotally supported at the outer end of said bifurcasted lever, a pair of links parallel with said bifurcated lever and pivotally connected to said U-sliaped member and said supporting frame, a cup for holding ice cream suspended from the U-shaped member, a scale bearing legends designating the percentage of overrun in ice cream carried by said bifurcated lever, and countervveights associated with the bifurcated lever for said U-sliaped member and cup and for resisting movement of said bifurcated lever respectively.

4. A device of the character described comprising a supporting frame, a bifurcated lever pivot-ally mounted on said frame, a vertical U-shaped member pivotally sup* ported at the outer end of said bifurcated lever, a pair of linksV parallel with. said bifurcated lever and pivotally connected to said U-shaped member and said supporting frame, a cup for pended from the U-shaped member, a. scale bearing legends designating the percentage of overrun in ice cream carried by said bifurcated lever, counterweights associated With the bifurcated lever for said U-sliaped member and cup and for resisting movement of said bifurca-ted lever respectively, and a casing for housing all of said device but said cup.

HUGO HENRY SOMMER.

holding` ice cream sus-Y

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