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The Pressure-Fed Fountain Paint Brush: Air Pushes the Paint, a Finger Stops It
Gottfried Meyer and Charles G. Braun, Philadelphia, Pennsylvania · Public domain (expired patent)
Emma

Dibuat oleh

Emma

6. Oktober 2026SE
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The Pressure-Fed Fountain Paint Brush: Air Pushes the Paint, a Finger Stops It

Painting from a pot means stopping every few strokes to reload the brush. Gottfried Meyer and Charles G. Braun of Philadelphia received US 821,879, patented 29 May 1906, for a fountain paint brush: a reservoir pressurised through an air pipe with a check valve sends paint along a hose to a tube in a recess of the brush head and out through a flattened flexible web among the bristles; a spring holds a plunger open, and the forefinger pushes its knob to cut the paint off. This rung works out how paint thickness and pressure set the flow, then builds the tank from a bottle and a tyre valve, feeds a brush, and measures the flow.
Menengah
About 3 hours

Instruksi

1

Flow through the hose

Memuat notebook Jupyter…
2

A one-way valve before it

The embedded blueprint lets flow pass one way only. Meyer and Braun put one on the air pipe so the pumped air stays in the paint tank.
3

Read US 821,879

"The knob 35 is disposed in convenient position for the fore or index finger of the hand which holds the brush, and the valve or plunger 33 can thus be easily maintained in its closed or inward position and the supply of paint cut off when not required." "The air-pressure causes the paint to flow to the brush no matter in what position the latter may be held and the flow is under complete control of the operator, as above noted."
4

Fit the cap

Drill a 1.5 L PET bottle's cap for a tyre valve and for vinyl tubing. Seat the valve, and push the tubing through until it touches the bottom. Seal both with epoxy.

Material untuk langkah ini:

Botol PET (minuman berkarbonasi)Botol PET (minuman berkarbonasi)1 buah
Pentil banPentil ban1 buah
Selang vinil beningSelang vinil bening1 buah
Epoksi dua komponenEpoksi dua komponen1 buah

Alat yang dibutuhkan:

Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
Pisau KerajinanPisau Kerajinan
5

Feed the brush

Drill a 6 mm hole down through the stock of a 70 mm brush from the set, beside the handle. Push silicone tubing through it into the bristles and flatten its last 30 mm with a cable tie.

Material untuk langkah ini:

Set kuas lukisSet kuas lukis1 buah
Selang SilikonSelang Silikon1 buah
Pengikat kabelPengikat kabel1 buah

Alat yang dibutuhkan:

Ragum MejaRagum Meja
Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
6

Make the finger valve

Screw a hardwood block to the handle over the tubing. Fit an M5 screw through it with a spring under the head, so the screw rests off the tube and a press of the forefinger pinches it shut.

Material untuk langkah ini:

Pasak kayu kerasPasak kayu keras1 buah
Sekrup mesinSekrup mesin1 buah
Set Pegas TekanSet Pegas Tekan1 buah

Alat yang dibutuhkan:

Gergaji BesiGergaji Besi
Bor Tanpa KabelBor Tanpa Kabel
Set Mata BorSet Mata Bor
Set obengSet obeng
7

Join and pressurise

Join the bottle's tubing to the brush's with a 1.5 m length. Half fill the bottle with acrylic paint thinned with water, cap it, and pump to 0.2 bar on the gauge.

Material untuk langkah ini:

Set cat akrilikSet cat akrilik1 buah
AirAir1 buah

Alat yang dibutuhkan:

Pompa sepedaPompa sepeda
Pengukur TekananPengukur Tekanan
8

The patent drawing

US 821,879 drawing sheet, public domain (expired patent).
Langkah 8 - Image 1
9

Measure the flow

Hold the brush over the measuring cylinder for 30 s and read the paint. Repeat at 0.4 bar, with the brush upside down, and with the button pressed.
Langkah 9 - Image 1

Alat yang dibutuhkan:

Gelas ukur silinderGelas ukur silinder
StopwatchStopwatch
Pengukur TekananPengukur Tekanan
10

A brush that floods, starves or will not stop

Pressure-fed fountain paint brush troubleshooting.

Flow

Loading...
11

History and honest limits

**Gottfried Meyer** and **Charles G. Braun** of Philadelphia filed US 821,879 on 22 November 1905; it was patented 29 May 1906. Their reservoir has a valve casing with a detachable plug valve; a pipe reaches the bottom with lateral apertures; a sheet-metal band closes the recess in the brush head; all parts detach for cleaning when the colour is changed. **Honest limits.** A pinch on silicone tubing stands in for their plunger in a tube, and a PET bottle at low pressure for their reservoir. The notebook treats paint as a simple liquid. Your flows are the result.

Bahan

12

Alat yang Diperlukan

10

Blueprint terkait

Blueprint ini berbagi pengetahuan — teknik, bahan, atau prinsip

One Way Only: The Check Valve and the Bang It Makes

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The Long-Handled Fountain Brush: A Ring of Holes Wets the Bristles From the Ground

The Long-Handled Fountain Brush: A Ring of Holes Wets the Bristles From the Ground

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Mekanika

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CC0 Domain Publik

Cetak biru ini dirilis di bawah CC0. Anda bebas untuk menyalin, memodifikasi, mendistribusikan, dan menggunakan karya ini untuk tujuan apa pun, termasuk komersial, tanpa meminta izin.

Dukung Maker dengan membeli produk melalui Cetak Biru mereka di mana mereka mendapatkan Komisi Pembuat yang ditetapkan oleh Penjual, atau buat iterasi baru dari Cetak Biru ini dan masukkan sebagai koneksi di milik Anda sendiri.

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