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The Hooded Fountain Paint Brush: A Dome Shares the Paint Between Both Sides
Franklin E. Fornwalt, Harrisburg, Pennsylvania · Public domain (expired patent)
Martin

Imeundwa na

Martin

6. Oktoba 2026NO
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The Hooded Fountain Paint Brush: A Dome Shares the Paint Between Both Sides

Paint fed into the middle of a brush clogs its head, and one side of the bristles runs dry. Franklin E. Fornwalt of Harrisburg, Pennsylvania, received US 842,644, patented 29 January 1907, for a fountain brush "for applying paint": a tin holder clamped over the brush carries a reservoir whose floor has a row of apertures under a hollow turning valve, and below it a hood whose dome sends equal paint to both sides of the bristles. This rung works out the flow a brush needs, then folds the holder from aluminium sheet over a 120 mm brush and measures the paint it lays on each side of a stroke.
Kati
About 5 hours

Maagizo

1

Paint the brush needs

Inapakia daftari la Jupyter…
2

A turned perforated tube before it

The embedded blueprint turns a perforated tube to change how water leaves a brush. Fornwalt turns a perforated valve to open or close a row of holes over a hood.
3

Read US 842,644

"In virtue of the provision of the said hood D paint is effectually prevented from getting on the brush-head b, and at the same time liability of the brush becoming choked and impaired is reduced to a minimum. It will also be apparent that the hood D conveys an equal quantity of paint to each side of the body of bristles a and assures the paint reaching the sides of the body of bristles in the form of thin layers, which obviously contributes materially to the efficiency of the fountain-brush as a whole."
4

Fold the tank

Fold aluminium sheet into a box 160 × 60 × 70 mm with a lid. Rivet the seams and seal them inside with silicone. Cut a 25 mm filling hole in the lid.

Vifaa kwa hatua hii:

Bamba la aluminiBamba la alumini1 kipande
Rivet za kuvutaRivet za kuvuta1 kipande
Kizibo cha SilikoniKizibo cha Silikoni1 kipande

Zana zinazohitajika:

Mkasi wa batiMkasi wa bati
Koleo la Mdomo BapaKoleo la Mdomo Bapa
Kibano cha meza ya kaziKibano cha meza ya kazi
Seti ya bastola ya rivetSeti ya bastola ya rivet
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya misumeno ya duaraSeti ya misumeno ya duara
Glavu za Kazi za NgoziGlavu za Kazi za Ngozi
5

Drill the floor

Drill six 3 mm holes along the floor's centre line, 20 mm apart.

Zana zinazohitajika:

Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Kalamu ya Wino wa KudumuKalamu ya Wino wa Kudumu
RulaRula
6

Make the turning valve

Cut 200 mm of 10 mm copper tube. Drill six 3 mm holes in a line to match the floor's, and file a 6 mm slot along the opposite side. Pass it through both end walls just above the floor and bend one end into a crank.

Vifaa kwa hatua hii:

Mrija wa shaba-njekunduMrija wa shaba-njekundu1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Kibano cha meza ya kaziKibano cha meza ya kazi
7

Fold the hood

Bend an aluminium strip into a ridge with 40° sides and rivet it under the floor, its peak under the holes.

Vifaa kwa hatua hii:

Bamba la aluminiBamba la alumini1 kipande
Rivet za kuvutaRivet za kuvuta1 kipande

Zana zinazohitajika:

Kibano cha meza ya kaziKibano cha meza ya kazi
Seti ya bastola ya rivetSeti ya bastola ya rivet
8

Clamp on the brush

Rivet two side skirts below the tank. Drill them and a 120 mm brush's stock for two M6 bolts, and clamp the brush between the skirts with nuts so their lower edges rest on the bristles.

Vifaa kwa hatua hii:

Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita1 kipande
Nati ya pembe sitaNati ya pembe sita1 kipande
Washa bapaWasha bapa1 kipande
Rivet za kuvutaRivet za kuvuta1 kipande

Zana zinazohitajika:

Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
Seti ya brashi za rangiSeti ya brashi za rangi
9

The patent drawing

US 842,644 drawing sheet, public domain (expired patent).
Hatua 9 - Image 1
10

Paint and weigh

Fill the tank with thinned acrylic paint. Weigh a plywood board, open the valve half, and paint one 1 m stroke each way. Weigh it again; compare how wet each side of the bristles is.
Hatua 10 - Image 1

Vifaa kwa hatua hii:

Seti ya rangi za akrilikiSeti ya rangi za akriliki1 kipande
MajiMaji1 kipande
Bati la mbao za kubandikaBati la mbao za kubandika1 kipande

Zana zinazohitajika:

Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
Tepi ya kupimiaTepi ya kupimia
Saa ya kupima mudaSaa ya kupima muda
11

A brush that clogs, floods or paints one side

Hooded fountain paint brush troubleshooting.

Flow

Loading...
12

History and honest limits

**Franklin E. Fornwalt** of Harrisburg, Pennsylvania, filed US 842,644 on 28 September 1906; it was patented 29 January 1907. His holder is preferably tin; bolts through the brush head with thumb nuts press the side walls in against the bristles, and removing them lets the brush be replaced. A connection may take a hose from a paint supply or compressed air. A right-angled form paints vertical surfaces, feeding the upper side of the bristles only. **Honest limits.** Riveted aluminium stands in for his tin, and plain nuts for his thumb nuts. Your weights are the result.

Vifaa

10

Zana Zinazohitajika

17

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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