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The Chalk-Line Marker: The Cord Winds on a Spindle Inside the Chalk
John W. Carter, New York · Public domain (expired patent)
Woody

Imeundwa na

Woody

30. Septemba 2026NO
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The Chalk-Line Marker: The Cord Winds on a Spindle Inside the Chalk

Carpenters and stone-cutters chalked their cord by hand, then held it tight at both ends and snapped it to mark a line to saw or cut by. John W. Carter of New York received US 65,057, dated 28 May 1867, for "a new and useful article for the use of carpenters, stone-cutters, and others, which I term a chalk-marker": a receptacle, round or of any shape, made in two pieces and filled with chalk or other marking material, with a spindle inside on which the cord is wound, its end coming out through an opening. "As the cord is drawn therefrom it is chalked by coming into contact with the chalk or other material placed in the receptacle", and it is wound back by a crank on the spindle. This rung works out how much chalk each draw takes, then makes the box from two tin lids with a cranked spindle, fills it, and snaps lines on a board.
Mwanzo
About 3 hours

Maagizo

1

Chalk per draw

Inapakia daftari la Jupyter…
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A chalk-line reel before it

The embedded blueprint reels the line back with a coil spring. Carter puts the reel inside the chalk so the line is chalked as it comes out.
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Read US 65,057

"Heretofore the carpenter, stone-cutter, or other artisan, has made use of a string or cord which was chalked by hand and placed upon the board, stone, or other article upon which the mark was to be impressed, in order that the same might answer as a guide to saw or cut by. The string was then held rather tightly at each end and snapped so as to impress upon the board or stone a mark to serve as a guide to saw or cut by." "A shows a receptacle for the chalk or other marking material employed. This receptacle may be made circular or of any convenient shape, and may be made of two pieces, as clearly shown in fig. 3 of the drawings. B is a spindle or shaft inserted within the receptacle A through suitable openings, and C is the cord which is wound upon the spindle or shaft, one end of the same projecting through the opening a in the receptacle."
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Make the marker and snap lines

**Box.** Take two tin-can lids or shallow tins that fit rim to rim, drill each in the middle for the spindle, and drill a small hole a in the rim of one for the cord. **Spindle and crank.** Bend a steel rod into a crank at one end, pass it through both halves, and glue a wooden spool on it inside. Tie the cord to the spool and wind it on, leading its end out through the hole. **Fill.** Half fill the box with powdered marking chalk and close the two halves with tape or a band. **Test.** Hook the cord's end on a nail at one end of a board, draw it out across the board, hold it tight and snap it. Wind it back with the crank. Weigh the box before and after ten snaps.

Vifaa kwa hatua hii:

Kopo la batiKopo la bati2 vipande
Ufito wa chuma lainiUfito wa chuma laini0.2 mita
Kipande cha mbao ngumuKipande cha mbao ngumu1 kipande
Gundi ya MbaoGundi ya Mbao1 kipande
Kamba ya PambaKamba ya Pamba15 mita
Chaki ya kuwekea alamaChaki ya kuwekea alama1 kipande
Ubao wa msonobariUbao wa msonobari1 kipande
MisumariMisumari1 kipande

Zana zinazohitajika:

Mkasi wa batiMkasi wa bati
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Kibano cha meza ya kaziKibano cha meza ya kazi
NyundoNyundo
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
Kamba ya kupiga mstariKamba ya kupiga mstari
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A marker whose line comes out bare, clogs or leaks chalk

Chalk-line marker troubleshooting.

Flow

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History and honest limits

**John W. Carter** of New York, New York, received US 65,057, dated 28 May 1867. The spindle might be provided with a spool on which the cord was wound, and could be turned by a crank or in any convenient way. He thought the invention particularly valuable for its cheapness and the rapidity of the work. His claim is the spindle and cord in combination with the chalk-receptacle. **Honest limits.** Two tins and a bent rod stand in for his receptacle and spindle. The notebook's coating is a rough example; your weighing gives the real figure.

Vifaa

8

Zana Zinazohitajika

8

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Kamba ya kupiga mstari

Free

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

The Self-Winding Chalk-Line Reel: A Coil Spring That Reels the Line Back

The Self-Winding Chalk-Line Reel: A Coil Spring That Reels the Line Back

na EmmaSE

Ujenzi

25
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0
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Making Chalk White Pigment (Whiting) — Grinding and Levigating Natural Chalk

Making Chalk White Pigment (Whiting) — Grinding and Levigating Natural Chalk

na CharlieDE

SANAA

87
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0
0
5
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