UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Side-Knife Can Opener: Round Holes and Long Ones With One Tool
Martin

Yaremwe na

Martin

6. Ukwakira 2026NO
29
0
0
0
0

Side-Knife Can Opener: Round Holes and Long Ones With One Tool

A circular opener makes round holes only, too small for a flat sardine box. F. S. Wyman of Chicago received US 80,326, dated 28 July 1868, for a side knife rigidly attached to the adjustable plate of a circular can opener, "by means of which square and longitudinal openings may be made in fruit-cans with the same tool which is used to make round holes": a slotted plate with a pointed pivot, and a plate sliding in the slot carrying both the circular knife and the side knife, fixed by a set screw. This rung compares round and long openings, then builds the plate, pivot and both knives and cuts each kind.
Hagati
About 3 hours

Amabwiriza

1

Round against long

Gupakira ikaye ya Jupyter…
2

A circular opener before it

The embedded blueprint cuts round holes about a spike. Wyman adds a side knife to the sliding plate for straight cuts.
3

Read US 80,326

"A represents a slotted plate, fitted in a handle, B, and having a pointed pivot, E, used as an axis for the knife D, the same as in the patent of S. D. Lecompte, of September 19, 1865, and has a plate, F, arranged to run in the slot B' and support the knife D, held in place by a set-screw, H, when moved in said slot to suit the semi-diameter of the opening to be made."
4

Make the slotted plate

Cut 120 mm of 25 × 3 mm flat bar. Saw and file a 5 mm slot 70 mm long in it, starting 20 mm from one end.

Ibikoresho by'iyi ntambwe:

Umurongo ugororotse w'icyuma cyoroshyeUmurongo ugororotse w'icyuma cyoroshye1 igice

Ibikoresho bikenewe:

Umucumita w'IbyumaUmucumita w'Ibyuma
Ifatiro ry'AmezaIfatiro ry'Ameza
Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Ikusanyirizo ry'Amakariso MatoIkusanyirizo ry'Amakariso Mato
Umurongo w'ipimaUmurongo w'ipima
5

Fit the pivot

Drill the plate's end 5 mm. File an M5 screw to a sharp point and fix it there with a nut, point down.

Ibikoresho by'iyi ntambwe:

Ibitorezo by'imashiniIbitorezo by'imashini1 igice
Umupira w'Impande EsheshatuUmupira w'Impande Esheshatu1 igice

Ibikoresho bikenewe:

Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Amakariso (Ikariso ry'Intoki)Amakariso (Ikariso ry'Intoki)
Isupana ihindurwaIsupana ihindurwa
6

Make the sliding plate and knives

Cut a 30 × 22 mm plate of flat bar. Cut a pointed circular knife and a straight side knife from 1 mm sheet; epoxy the first under its centre and the second along its side so it lies close to the slotted plate's edge.

Ibikoresho by'iyi ntambwe:

Umurongo ugororotse w'icyuma cyoroshyeUmurongo ugororotse w'icyuma cyoroshye1 igice
Urupapuro rw'icyuma cyoroshyeUrupapuro rw'icyuma cyoroshye1 igice
Epoksi y'Ibice BibiriEpoksi y'Ibice Bibiri1 igice

Ibikoresho bikenewe:

Umucumita w'IbyumaUmucumita w'Ibyuma
Ibyuma bikata ibyuma bisanzweIbyuma bikata ibyuma bisanzwe
Amakariso (Ikariso ry'Intoki)Amakariso (Ikariso ry'Intoki)
Ibuye ryo gutyazaIbuye ryo gutyaza
Amadarubindi Asobanutse yo KwirindaAmadarubindi Asobanutse yo Kwirinda
7

Set screw and handle

Drill the sliding plate for an M5 screw through the slot with a washer and nut. Fit a hardwood handle with epoxy.

Ibikoresho by'iyi ntambwe:

Ibitorezo by'imashiniIbitorezo by'imashini1 igice
Uruziga RurambuyeUruziga Rurambuye1 igice
Umupira w'Impande EsheshatuUmupira w'Impande Esheshatu1 igice
Udukoni tw'ibiti bikomeyeUdukoni tw'ibiti bikomeye1 igice
Epoksi y'Ibice BibiriEpoksi y'Ibice Bibiri1 igice

Ibikoresho bikenewe:

Icyuma Cyivumbura Kidafite InsingaIcyuma Cyivumbura Kidafite Insinga
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Isupana ihindurwaIsupana ihindurwa
8

The patent drawing

US 80,326 drawing sheet, public domain (expired patent).
Intambwe 8 - Image 1
9

Cut a round and a long opening

Cut a round hole in one sealed can about the pivot. On a second, cut four straight sides with the side knife, rocking the handle along each; time both and measure the openings.
Intambwe 9 - Image 1

Ibikoresho by'iyi ntambwe:

Ikopo ry'icyumaIkopo ry'icyuma1 igice

Ibikoresho bikenewe:

Isaha yo GuhagarikaIsaha yo Guhagarika
Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6
Uturindantoki tw'uruhu tw'akaziUturindantoki tw'uruhu tw'akazi
10

Knives that slip, bind or wander

Side-knife can opener troubleshooting.

Flow

Loading...
11

History and honest limits

**F. S. Wyman** of Chicago received US 80,326, dated 28 July 1868. The plate and side knife should be one piece of steel, with a nib guiding it in the slot, the knife tempered to hold an edge. He did not claim the circular opener, patented by S. D. Lecompte on 19 September 1865, nor the side knife broadly, a similar device having been patented by S. P. Chapin on 17 July 1866; he claimed the side knife rigidly attached to the adjustable plate. **Honest limits.** Epoxy stands in for his one-piece steel plate and knife, and nothing is tempered. Your times are the result.

Ibikoresho

8

Ibikoresho bikenewe

14

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

Ibiganiro

(0)

Injira kugira ngo ujye mu biganiro

Gutegura ibitekerezo...