LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
The Reversible Sad-Iron Stand: Feet That Lock to the Board
A hot iron has to rest somewhere between strokes. On a board that tips, the stand can slide off with it.
Susan T. Inesly of New York received US 148,706, dated 17 March 1874 (filed 10 December 1873), for a sad-iron holder "constructed with feet on one side and a vertical rim or flange on its other, whereby said holder can be reversed to present either face for supporting the iron". Bars screwed to the ironing board take the feet, so the holder "is not liable to slide off the same if the board be tilted".
This rung works out the tilt at which a stand starts to slide, and the force the bars must then take. You then make a stand with locating feet and test it on a tilted board.
Byrjandi
About 2 hours
Leiðbeiningar
1
1
The tilt that starts a slide
The tilt that starts a slide
Hleð Jupyter-vinnubók…
2
2
What the stand holds
What the stand holds
The embedded blueprint covers the sad iron itself: a heavy iron heated on the stove, set down between strokes.
3
3
Read US 148,706
Read US 148,706
"The object of this invention is to furnish a sad-iron holder which is capable of the uses of the ordinary holders, and which can be reversed or either side turned up to support the iron, while it may be securely held in place on an ironing board or table, if desired."
"The said brackets or bars D are intended to be used on ironing-boards for the purpose of preventing the holder from sliding off the same, as when putting on or taking off a skirt, when the board must be tilted; but for ordinary table-use they are not essential."
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4
Make a stand with locating feet and tilt it
Make a stand with locating feet and tilt it
Cut an iron-shaped plate from steel sheet with the tin snips and file the edges smooth. Rivet two short folded strips under it as feet. Along the edge of the other face, rivet a strip bent up as a low rim, so the plate can be used either way up.
Screw two short wooden bars to a board, with holes drilled to take the feet.
First set the stand on the bare board, load it with a weight and tilt the board slowly. Read the angle on the protractor when it starts to slide; the tangent of that angle is your friction coefficient. Then drop the feet into the bars and tilt again. Compare with the notebook.
Efni fyrir þetta skref:
Stálplata1 stykki
Stálhnoð8 stykki
Furuborð1 stykki
Tréskrúfur4 stykkiNauðsynleg verkfæri:
Undirlag fyrir heita potta
Plötuklippur
Málmþjöl
Hleðslubor
Gráðubogi
Lóð
Hnoðsett
Hnoðhamar5
5
A stand that slides, rocks or scorches
A stand that slides, rocks or scorches
Iron stand troubleshooting.
Flow
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6
History and honest limits
History and honest limits
**Susan T. Inesly** of New York filed US 148,706 on 10 December 1873; it is dated 17 March 1874.
**Honest limits.** The notebook uses one friction coefficient for starting and sliding, and treats the stand as a block. A real stand can tip before it slides. The masses, friction values and angles are examples. Your tilt measurements are the measurement.
Efni
4- 1 stykkiStaðgengill
- 8 stykkiStaðgengill
- 1 stykkiStaðgengill
- 4 stykkiStaðgengill
Tengd Blueprint
Þessi blueprint deila þekkingu — tækni, efni eða meginreglur
CC0 opinbert ríki
Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.
Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.