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The Calculating Cheese-Cutter: A Wheel Set by the Cheese's Weight
Henry G. Roth, Minneapolis, Minnesota · Public domain (expired patent)
Martin

Dibuat oleh

Martin

28. September 2026NO
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The Calculating Cheese-Cutter: A Wheel Set by the Cheese's Weight

A grocer cutting a slice from a whole round cheese had to guess, weigh, and trim until the weight was right. Henry G. Roth of Minneapolis received US 657,621, dated 11 September 1900, for a "calculating cutting device for cheeses of circular cake form": the cheese turns on a table while a small measuring wheel rolls on its top, set along a graduated rod according to the cheese's total weight, so that each turn of the wheel marks the same weight of cheese, whatever the cheese weighs. This rung works out why the total weight cancels, then builds a turntable with a weight dial and cuts wedges to a set weight.
Menengah
About 3 hours

Instruksi

1

Weight per turn, and the wedge angle

Memuat notebook Jupyter…
2

A wheel that measures

The embedded blueprint counts a wheel's turns to measure distance. Roth's wheel counts turns to measure weight of cheese.
3

Read US 657,621

"My present invention has for its object to provide a calculating cutting device for cheeses of circular cake form". "The twenty-pound graduation indicates a position just one-half as far from the axis of the centering-tube b as does the forty-pound graduation." As illustrated, the measuring wheel "is shown of such diameter that it will be given one complete rotation when properly set each time the cake of cheese is moved the distance occupied by a five-pound segment of the cake."
4

Build a weight dial and cut wedges to weight

Cut a plywood disk a little larger than the cheese and screw it to the lazy Susan. Drive a short stainless screw up through its centre as a pin to hold the cheese in place. On card stock, draw a circle and mark the wedge angles for 100 g and 250 g for cheeses of several weights, using the notebook's rule, with the protractor. Lay the card under a clear sheet on the disk, lined up with the pin. Weigh a whole round cheese and set it on the pin. Line a straight knife up with the pin and the mark for the weight you want, and cut. Weigh the wedge and write down the error. Cut three wedges and compare.

Material untuk langkah ini:

Lembaran kayu lapisLembaran kayu lapis1 buah
Nampan putarNampan putar1 buah
Kertas KartonKertas Karton1 buah
Sekrup kayuSekrup kayu5 buah
KejuKeju1000 g

Alat yang dibutuhkan:

Pemotong kejuPemotong keju
PisauPisau
Busur DerajatBusur Derajat
PenggarisPenggaris
Timbangan Dapur DigitalTimbangan Dapur Digital
Gergaji CopingGergaji Coping
Bor Tanpa KabelBor Tanpa Kabel
Spidol PermanenSpidol Permanen
5

Wedges that come out too heavy or too light

Cheese-cutter troubleshooting.

Flow

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6

History and honest limits

**Henry G. Roth** of Minneapolis filed US 657,621 on 29 June 1900; it was patented 11 September 1900. He graduated both sides of the dial case so that "both the salesmen from the inside of the counter and the purchaser from the outside of the counter" could read them. **Honest limits.** Both methods assume the cheese is the same density all the way round. The 20 lb radius is an example. Your weighed wedges are the measurement.

Bahan

5
  • 4
    Lembaran kayu lapis
    1 buah
    Placeholder
  • 4
    Nampan putar
    1 buah
    Placeholder
  • 4
    Kertas Karton
    1 buah
    Placeholder
  • 4
    Sekrup kayu
    5 buah
    Placeholder
  • 4
    Keju
    1000 g
    Placeholder

Alat yang Diperlukan

8

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CC0 Domain Publik

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