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Draining-Tube Potato Masher: Mash in a Tube, the Water Runs Out
Potatoes mashed in the pot keep their water and go gluey.
Vincent Fountain Jr. of Castleton, New York, received US 60,355, dated 11 December 1866, for a potato masher: a tubular receptacle with a handle on each side and a removable bottom of wire cloth held by pins under ears; a plunger "moved freely up and down within the same" mashes the potatoes, "the water from the same, passing off through the wire bottom," and with the bottom taken off the potatoes are pressed out.
This rung works out the plunger pressure, then prints the tube, bottom and plunger, and mashes a pan of potatoes, weighing the water that runs out.
Beginner
About 1 hour, plus printing
Instructions
1
1
Plunger pressure
Plunger pressure
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2
A mesh partition before it
A mesh partition before it
The embedded blueprint drives egg through a gauze. Fountain lets the potatoes' water out through a wire-cloth bottom while a plunger mashes them.
3
3
Read US 60,355
Read US 60,355
"My improved masher being thus constructed, the potatoes to be mashed are placed in the receptacle, A, and the masher, C, is moved freely up and down within the same, and the potatoes are thus mashed, the water from the same passing off through the wire bottom, B. When desired to remove the potatoes, the bottom, B, is removed from the receptacle, A, and the potatoes may be pressed out of the receptacle, A."
4
4
Print the parts
Print the parts
Print the tube with handles and ears (/uploads/blueprints/draining-tube-potato-masher-tube.stl), the bottom with its 3.2 mm grid and pins (/uploads/blueprints/draining-tube-potato-masher-bottom.stl), and the plunger (/uploads/blueprints/draining-tube-potato-masher-plunger.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Materials for this step:
PETG Filament1 pieceTools needed:
FDM 3D Printer5
5
Fit the bottom
Fit the bottom
Push the bottom's ring onto the tube so its pins enter the ears' slots, and twist to lock. File the slots if they are tight.
Tools needed:
Files (Hand File)6
6
The patent drawing
The patent drawing
US 60,355 drawing sheet, public domain (expired patent).
7
7
Cook the potatoes
Cook the potatoes
Boil 500 g of potatoes, peeled and quartered, in salted water for about 20 minutes until a knife slides in; drain.
Materials for this step:
Potatoes1 piece
Water1 pieceTools needed:
Saucepan
Digital Kitchen Scale8
8
Mash and weigh the water
Mash and weigh the water
Stand the tube in a bowl on the scale and zero it. Fill it with hot potatoes and work the plunger; read how much water collects. Twist the bottom off and press the mash out.
Tools needed:
Stainless Steel Mixing Bowl (Large)Digital Kitchen Scale
Stopwatch9
9
A bottom that falls off, a plunger that sticks
A bottom that falls off, a plunger that sticks
Draining-tube potato masher troubleshooting.
Flow
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10
History and honest limits
History and honest limits
**Vincent Fountain Jr.** of Castleton, Richmond County, New York, received US 60,355, dated 11 December 1866. The receptacle may be tin or any suitable material; the bottom is a ring with a bottom of wire cloth; the masher is hard wood, like the usual masher but large enough to fit the receptacle. He claimed the tube with its detachable perforated bottom and handles, and the plunger.
**Honest limits.** A printed grid stands in for wire cloth; FDM prints hold food in their layer lines, so wash well. Your weights are the result.
Tools Required
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