УРЛАГ
ГОО САЙХАН БА ЭРҮҮЛ МЭНД
ГАРААР ХИЙСЭН
СОЁЛ БА ТҮҮХ
ҮЗВЭР НААДАМ
БАЙГАЛЬ ОРЧИН
ХООЛ БА УНДАА
УРВУУ ИНЖЕНЕРЧЛЭЛ
ШИНЖЛЭХ УХААН
СПОРТ
ТЕХНОЛОГИ
ӨМСДӨГ ХЭРЭГСЭЛ

The Bootjack Hat Stand: Handles to Hold, a Crescent on the Instep
Standing on one foot to draw off a tight boot, there is nothing to hold, and a bootjack takes floor space for one job only.
Frederick Ahl of West Meriden, Connecticut, received US 22,404, dated 28 December 1858, for a bootjack that "will afford a rest for both hands to hold it steady while drawing the foot from the boot", with a vibrating arm whose crescent-shaped piece falls "to rest, upon the upper surface of the foot of the boot, between the toe and instep". Its cross-bar "renders it useful as a clothes, or hat, stand", and the whole unscrews to pack.
This rung works out how much the stand will hold before it tips, then turns and assembles the jack from hardwood and plywood and loads it.
Дунд шат
About 5 hours
Зааварчилгаа
1
1
Load before tipping
Load before tipping
Jupyter дэвтэр ачаалж байна…
2
2
Holding the toe another way
Holding the toe another way
The embedded blueprint holds the toe with clamps closed by the heel. Ahl holds it with a falling crescent and gives the hands something to grip.
3
3
Read US 22,404
Read US 22,404
"I make the platform, A, for the foot to rest on, substantially in the form shown in the drawing, with a notch, or space, for the heel of the boot at its elevated end, in the usual form, as represented at B. I mount this platform, A, in two upright posts, or standards, C and D".
"To pack this apparatus, for transportation, &c., I unscrew the knobs, d and e, at the top, take off the cross-bar, H, and take out the screws which secure the standards to the platform, (one of which is seen at g,) when the whole may be packed within the length of the platform."
4
4
Build the stand and test it
Build the stand and test it
**Platform.** Cut a platform 40 × 20 cm from plywood with a heel notch at one end, and screw a block under that end to raise it.
**Standards.** Cut two 45 cm lengths of hardwood dowel and screw them upright through the platform's sides from below, so they can be unscrewed.
**Cross-bar.** Drill a 36 cm hardwood strip at the standards' spacing, set it on their tops with glued dowel knobs so it lifts off, and round its ends as handles.
**Arm.** Push a dowel rock-shaft through holes halfway up the standards so it turns freely. Glue a hardwood arm to it with a crescent cut from plywood on its end, long enough to rest on a boot's instep.
**Test.** Take a rubber boot off, holding the handles, with the crescent on the instep. Then hang loads weighed on the kitchen scale on one handle end and find the one that tips it. Compare with the notebook. Unscrew and pack it.
Энэ алхмын материал:
Фанер хуудас1 ширхэг
Хатуу модон гадас1.2 метр
Хатуу модон банз1 ширхэг
Модны шураг6 ширхэг
Модны цавуу10 млШаардлагатай багаж:
Гар хөрөө
Муруй хөрөө
Утасгүй өрөм
Өрмийн үзүүрийн иж бүрдэл
Бүдүүн сэвс
Элсэн цаас
Халив иж бүрдэл
Дижитал гал тогооны жин
Шугам
Резинэн гутал
Гутал тайлагч5
5
A stand that tips, wobbles or will not hold the boot
A stand that tips, wobbles or will not hold the boot
Bootjack hat stand troubleshooting.
Flow
Loading...
6
6
History and honest limits
History and honest limits
**Frederick Ahl** of West Meriden, New Haven County, Connecticut, received US 22,404, dated 28 December 1858. He noted that jacks with a rigid piece pressing on the boot already existed; his claim is the platform, vibrating arm and cross-bar arranged together.
**Honest limits.** Plywood and dowel stand in for his turned standards and cross-bar. The notebook treats the stand as a rigid block tipping about one edge; its weights and sizes are examples. Your tipping load is the result.
Материал
5- 1 ширхэгТүр орлуулагч
- 1.2 метрТүр орлуулагч
- 1 ширхэгТүр орлуулагч
- 6 ширхэгТүр орлуулагч
- 10 млТүр орлуулагч
Шаардлагатай багаж
11- Түр орлуулагч
- Түр орлуулагч
- 1 vendor sell this, none ship to you yetТүр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
Холбоотой загварууд
Эдгээр загварууд мэдлэг хуваалцдаг — арга техник, материал эсвэл зарчим
CC0 Нийтийн домэйн
Энэ загвар CC0 дор гаргагдсан. Та зөвшөөрөл авахгүйгээр хуулах, өөрчлөх, түгээх, ашиглах боломжтой.
Загвараар дамжуулан бүтээгдэхүүн худалдаж авч Бүтээгчийг дэмжээрэй Бүтээгчийн шимтгэл Борлуулагчаар тогтоосон, эсвэл энэ загварын шинэ хувилбар үүсгэж орлогоо хуваахын тулд өөрийн загварт холбоос болгон оруулна уу.


