SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
The Sliding-Blade Pocket Knife: A Spring Catch That Locks the Blade Out or In
Eben Moody Boynton, West Newbury, Massachusetts · Public domain (expired patent)
Forge

Imeundwa na

Forge

30. Septemba 2026NO
35
0
0
0
0

The Sliding-Blade Pocket Knife: A Spring Catch That Locks the Blade Out or In

A knife whose blade slides out of its handle must hold the blade firmly both out and in, or it can close on the fingers or slide out in the pocket. Eben Moody Boynton of West Newbury, Massachusetts, received US 373,580, dated 22 November 1887, for pocket-knives "in which the blade or blades is or are arranged to slide in and out of the handle", with a flat spring on the blade whose knob projects through a slot in the handle. A retaining recess at each end of the slot takes the spring when the blade is out or in; its back shoulder is square, so a push cannot move the blade, while the front shoulder is inclined, so the catch slides in. Two blades can share one shank, and nut-picks, nail-cleaners, corkscrews or pencils can be sheathed the same way. This rung works out how the catch resists and releases, then makes a hollow handle from tube with a slot and two recesses, and a stainless blade with a spring catch.
Juu
About 6 hours

Maagizo

1

The spring catch

Inapakia daftari la Jupyter…
2

A pocket knife before it

The embedded blueprint holds its tools with back springs as a clasp knife does. Boynton slides the blade straight in and out and locks it with a spring catch.
3

Read US 373,580

"D is a spring, flat and substantially rectangular in cross-section, which is attached to the blade or blades near the base thereof, projects through a longitudinal slot, E, in the handle, and carries at its upper end an operating-knob, G." "The front shoulder, f, of the projection F is inclined, as shown, so that the spring may slide up readily into the recess; but the corresponding shoulder, c, of the recess is square and adapted to retain the spring from longitudinal motion, except when intentionally given that direction and movement which will disengage it."
4

Make the knife and lock the blade

**Handle.** Cut 10 cm of rectangular or flattened aluminium tube as the hollow handle, close its back end, and saw a slot E along one side. File a small square-shouldered recess C at each end of the slot, with an inclined ramp F before each. **Blade.** Cut a blade from stainless steel sheet with a straight shank that slides snugly in the tube, and sharpen it. **Spring and knob.** Rivet a short strip of spring steel to the shank near its base so it presses outward through the slot, and fix a small knob G on its free end. **Test.** Press the knob, slide the blade out until the spring snaps into the front recess, and push on the blade's point against a board: it should not move. Press the knob to release it, slide it in, and shake the knife to check it stays shut.

Vifaa kwa hatua hii:

Bomba la aluminiBomba la alumini0.1 mita
Bati la chuma cha puaBati la chuma cha pua1 kipande
Utepe wa chuma cha springiUtepe wa chuma cha springi0.05 mita
Rivet za chuma cha puaRivet za chuma cha pua2 vipande
Kipande cha mbao ngumuKipande cha mbao ngumu1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Seti ya tupa ndogoSeti ya tupa ndogo
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Mkasi wa batiMkasi wa bati
Kibano cha meza ya kaziKibano cha meza ya kazi
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya rivetiSeti ya riveti
Jiwe la KunoleaJiwe la Kunolea
Glavu za Kazi za NgoziGlavu za Kazi za Ngozi
Miwani ya usalama iliyo waziMiwani ya usalama iliyo wazi
Nyundo ya rivetiNyundo ya riveti
5

A blade that slips, jams or will not lock

Sliding-blade pocket knife troubleshooting.

Flow

Loading...
6

History and honest limits

**Eben Moody Boynton** of West Newbury, Essex County, Massachusetts, filed US 373,580 on 3 May 1886; it is dated 22 November 1887. His release was a torsional movement not likely to be given by accident, a third recess could hold the blades closed at the middle, the spring could be dovetailed into the blade, and up to eight blades could be fitted. His claims cover the hollow slotted handle with the sliding blade and its spring catch, the slot's notch and incline, and the flat spring in the blade's plane. **Honest limits.** Aluminium tube and stainless sheet stand in for his made handle and blades, and the release here is a press rather than his twist. The notebook treats the catch as a simple spring and wedge; its values are examples. Your locked blade is the result.

Vifaa

5

Zana Zinazohitajika

12

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

The Hoof-Cleaner Pocket Knife: Blade, Box Opener, Hoof Pick, Hammer and Corkscrew in One Handle

The Hoof-Cleaner Pocket Knife: Blade, Box Opener, Hoof Pick, Hammer and Corkscrew in One Handle

na KarenSE

Uchimbaji chuma

36
0
0
0
0
0
The Tweezer Pocket Implement: Knife, Rule, Hook, Calipers and File Hung Inside a Pair of Tweezers

The Tweezer Pocket Implement: Knife, Rule, Hook, Calipers and File Hung Inside a Pair of Tweezers

na TexFO

Uchimbaji chuma

23
0
0
0
0
0
The Pocket-Case Corkscrew: A Tube That Holds the Screw, Then Becomes Its Handle

The Pocket-Case Corkscrew: A Tube That Holds the Screw, Then Becomes Its Handle

na ForgeNO

Uchimbaji chuma

43
0
0
0
0
0

CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

Majadiliano

(0)

Ingia kujiunga na majadiliano

Inapakia maoni...