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The Label-Anchored Plant Guard: A Folded Card Collar Pinned Down by the Plant's Own Label
Arthur W. Harris, Sleepy Eye, Minnesota · Public domain (expired patent)
Bob

Autor

Bob

6. październik 2026BE
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The Label-Anchored Plant Guard: A Folded Card Collar Pinned Down by the Plant's Own Label

A transplanted seedling stands exposed at the soil line, and a loose collar round it blows away. Arthur W. Harris of Sleepy Eye, Minnesota, received US 1,324,668, patented 9 December 1919, for a plant guard "to prevent cutworms and other insects from reaching and injuring or destroying the plant": a creased card folded into a square tube, held to the ground by the plant's pointed label threaded through slots in its overlapping ends. This rung counts how many guards one sheet of card gives, then folds one round a plant and measures how hard it can be pushed before it tips, with and without its label.
Początkujący
About 1 hour

Instrukcje

1

Guards per sheet

Wczytywanie notatnika Jupyter…
2

Planting out before it

The embedded blueprint moves a seedling outdoors. Harris's guard goes round it once it is in the ground.
3

Read US 1,324,668

"The anchoring member 11 is preferably in the form of a pot or plant label usually made of a piece of flat wood or other material and having a pointed lower end 19 to permit of conveniently threading the label through the registering slots 15, 16 and 17, 18 and to permit of conveniently pushing this pointed end 19 into the ground to securely hold the body 10 in upright position on the ground and around a growing plant." "In practice, the lower end of the body 10 is pushed about half an inch into the ground as some of the cutworms are active near the surface of the ground as well as above ground."
4

Cut and crease the strip

Cut a strip of card 220 × 80 mm. Mark creases at 20, 70, 120 and 170 mm and score them with the bone folder against the ruler. The 20 mm end and the last 50 mm side overlap.

Materiały do tego kroku:

BrystolBrystol1 sztuka

Potrzebne narzędzia:

Nóż introligatorskiNóż introligatorski
Mata do cięcia samoregenerującaMata do cięcia samoregenerująca
LinijkaLinijka
OłówekOłówek
Kostka introligatorskaKostka introligatorska
5

Slot the ends

Fold the strip into a square tube with the ends overlapping. Through both layers cut two horizontal slits, one 15 mm from the top and one 15 mm from the bottom, each 2 mm wider than the plant label.

Potrzebne narzędzia:

Nóż introligatorskiNóż introligatorski
Mata do cięcia samoregenerującaMata do cięcia samoregenerująca
LinijkaLinijka
6

Set it round the plant

Write the plant's name on the label. Lower the tube over a plant in a pot of soil and push its edge about 1.3 cm (half an inch) in. Thread the label in through the upper slit and out through the lower one, then push its point into the soil.

Materiały do tego kroku:

Etykieta do roślinEtykieta do roślin1 sztuka
Ziemia ogrodowaZiemia ogrodowa1 sztuka

Potrzebne narzędzia:

DoniczkaDoniczka
Marker permanentnyMarker permanentny
LinijkaLinijka
7

Measure the tipping push

Punch a hole 10 mm below the top edge. Hook the force meter through it and pull sideways until the tube tips; note the force. Repeat three times with the label and three times without it. Then give it 30 sprays of water and pull again.

Potrzebne narzędzia:

DziurkaczDziurkacz
Siłomierz (waga sprężynowa)Siłomierz (waga sprężynowa)
Butelka ze spryskiwaczemButelka ze spryskiwaczem
8

A guard that tips, tears or crowds the plant

Label-anchored plant guard troubleshooting.

Flow

Loading...
9

History and honest limits

**Arthur W. Harris** of Sleepy Eye, Minnesota, filed US 1,324,668 on 15 May 1919; it was patented 9 December 1919. He also showed a form whose overlapping ends lock with struck-up lugs through slots, with the label threaded through the opposite side. He noted the tube ships flat with its label and is assembled by the user, and that the label keeps it from being disturbed by severe winds or rains. **Honest limits.** He gives no sizes; the 50 mm square is an example. The test measures how firmly the guard stands, not how well it stops insects. Your forces are the result.

Materiały

3

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10

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CC0 Domena publiczna

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