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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

Nilikha ni

Martin

6. Oktubre 2026NO
30
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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.
Katamtaman
About 5 hours

Mga Tagubilin

1

Paint the brush needs

Naglo-load ng Jupyter notebook…
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.

Mga materyales para sa hakbang na ito:

Plantsang aluminyoPlantsang aluminyo1 piraso
Mga pop rivetMga pop rivet1 piraso
Silicone SealantSilicone Sealant1 piraso

Mga kailangang kasangkapan:

Gunting na pangyeroGunting na pangyero
Plais na Patag ang NgusoPlais na Patag ang Nguso
Bais sa Mesang PanggawaBais sa Mesang Panggawa
Kit ng pop rivet gunKit ng pop rivet gun
Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Set ng hole sawSet ng hole saw
Guwantes na Katad PangtrabahoGuwantes na Katad Pangtrabaho
5

Drill the floor

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

Mga kailangang kasangkapan:

Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Pangmarkang Hindi NabuburaPangmarkang Hindi Nabubura
RulerRuler
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.

Mga materyales para sa hakbang na ito:

Tubong tansoTubong tanso1 piraso

Mga kailangang kasangkapan:

Lagaring Pang-metalLagaring Pang-metal
Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Kikil (Kikil na Pangkamay)Kikil (Kikil na Pangkamay)
Bais sa Mesang PanggawaBais sa Mesang Panggawa
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.

Mga materyales para sa hakbang na ito:

Plantsang aluminyoPlantsang aluminyo1 piraso
Mga pop rivetMga pop rivet1 piraso

Mga kailangang kasangkapan:

Bais sa Mesang PanggawaBais sa Mesang Panggawa
Kit ng pop rivet gunKit ng pop rivet gun
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.

Mga materyales para sa hakbang na ito:

Set ng brotsaSet ng brotsa1 piraso
Sari-saring hex boltSari-saring hex bolt1 piraso
Tuerkang HeksagonalTuerkang Heksagonal1 piraso
Patag na SinturonPatag na Sinturon1 piraso
Mga pop rivetMga pop rivet1 piraso

Mga kailangang kasangkapan:

Walang-Kableng BarenaWalang-Kableng Barena
Hanay ng Talim ng BarenaHanay ng Talim ng Barena
Llaveng inglesLlaveng ingles
9

The patent drawing

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

Mga materyales para sa hakbang na ito:

Set ng pinturang akrilikoSet ng pinturang akriliko1 piraso
TubigTubig1 piraso
Plantsa ng playwudPlantsa ng playwud1 piraso

Mga kailangang kasangkapan:

Digital na Timbangang PangkusinaDigital na Timbangang Pangkusina
Panukat na TapePanukat na Tape
Panukat ng OrasPanukat ng Oras
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.

Mga Materyales

11

Mga Kinakailangang Kasangkapan

16

Kaugnay na Blueprint

Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo

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CC0 Pampublikong Domain

Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.

Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.

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