Old ideas · modern machines

I went down a rabbit hole.

Patents are extraordinary things. Inventors have been documenting solutions to everyday problems for generations.

  • Cooking.
  • Moving things.
  • Folding things.
  • Heating things.
  • Cooling things.
  • Keeping smoke out.
  • Keeping rain out.
  • Making chairs smaller.
  • Making wheelbarrows fold.
  • Stopping fat falling into a fire.

Some of the drawings are more than 100 years old. And the surprising thing isn’t how old the ideas look.

It’s how familiar the problems are.

The problems haven’t changed. Manufacturing has.

Then and now.

Then

An inventor 80 or 100 years ago might have needed:

  • Castings
  • Machining
  • Rivets
  • Welding
  • Half a dozen separate components

Now

Today we have:

  • CNC lasers
  • Modern press brakes
  • CAD
  • Precision punching
  • Better welding
  • Modern stainless steels and aluminium alloys
  • 40 years of knowing what sheet metal will — and won’t — happily do

What would this look like if we made it today?

The process

Seven steps, and most of them involve being wrong.

  1. 01

    Find

    An old invention, patent or forgotten solution catches our attention.

  2. 02

    Understand

    What problem was the inventor actually trying to solve?

  3. 03

    Question

    Which part was clever? Which part existed because of the manufacturing limitations of the time?

  4. 04

    Redesign

    Put the old drawing down and solve the problem using today’s materials and machinery.

  5. 05

    Make one

    Laser. Punch. Bend. Weld if necessary.

  6. 06

    Break it / burn it / cook on it

    Use it.

  7. 07

    Learn

    Change it and make another.

“We’re not trying to copy the past. We’re interested in what the past was trying to solve.”

From the rabbit hole

The ones we’re working on.

Each story runs the same way: original patent, the clever bit, our interpretation, prototype, product.

File 01

The channelled cooking grid

Grease-control patents DE 2427678 A1 (1974) and DE 2435801 A1 (1975). Technical reconstruction, not the original patent figures.

Ordinary round grill bars let fat fall straight onto the fire. Form the cooking surface into shallow V-shaped channels instead and much of the fat runs along them to a collector.

  1. Original patentDE 2427678 A1 (1974), DE 2435801 A1 (1975), US 4,658,710 (1980s), US 3,989,028 (1970s)
  2. The clever bitThe channel is the cooking surface and the drain at the same time
  3. Our interpretationTwo identical formed grids, the second offset by half a pitch, both draining to a common collector
  4. PrototypeMade, cooked on, and still being changed
  5. ProductNUNU. Full story coming to the Products page
File 02

The kitchen extraction filter

How a baffle grease filter works Grease-laden air is forced to zigzag between two rows of V-shaped stainless baffles. The air turns easily. The heavier grease droplets carry straight on, hit the steel and drain away. V-BAFFLES, OPPOSED AND INTERLEAVED GREASE DRAINS AWAY AIR IN AIR OUT
How a baffle filter separates grease. Our simplified drawing, not a patent figure.

Grease-laden air moves upwards. Instead of catching the grease in a fine mesh, the filter forces the air to change direction again and again. Air turns easily. Grease droplets don’t.

  1. Original patentUS 3,910,782 (early 1970s), opposed and interleaved V-baffles. Long expired
  2. The clever bitNo electronics, no software: shape, airflow, gravity and stainless steel
  3. Our interpretationFewer parts, fewer welds, and a cassette that slides apart for cleaning
  4. PrototypeNot yet
  5. ProductNot yet
File 03

Folding furniture, 1890–1931

Patent archaeology: folding furniture, 1890–1931. Patent mechanisms reconstructed, with modern concept renders.

Four expired patents for folding seats and tables. Then: timber, hinges and hardware. Now: laser, bend, slot and pin.

  1. Original patentUS 683,744 (1901), US 965,338 (1910), US 1,823,484 (1931), US 438,924 (1890)
  2. The clever bitIt folds flat, carries in one hand and needs no tools
  3. Our interpretationFewer parts, no welding, slot and pin instead of hardware
  4. PrototypeNot yet
  5. ProductNot yet
File 04

The collapsible box

US 886,530 A (1907), Collapsible Box. Concept render with the original patent drawing.

A light, durable box that can be cheaply formed from sheet metal, folded flat when it isn’t needed. Home, garden, delivery, camping, agriculture.

  1. Original patentUS 886,530 A (1907). Expired
  2. The clever bitIt carries a load open and disappears flat
  3. Our interpretationLaser-cut panels that locate into each other
  4. PrototypeNot yet
  5. ProductNot yet

Renders on this page are concepts, not finished products. Patent status is as we understand it from public records.

Bless the curious.

They keep workshops interesting.

Get a price

Found something we should look at?

Send us a patent number, an old photograph or the thing that has always annoyed you about a product.

WhatsApp or call 083 448 1891
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Upper Elsies River, Cape Town

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