niaj hnub staples rau daim ntawv staplers yog tsim los ntawm zinc-plated steel hlau txuas ua ke thiab khoov los ua ib txoj hlua ntev ntawm staples. Staple strips feem ntau muaj xws li "tag nrho strips" nrog 210 staples ib strip.
hom hlau twg siv rau hauv staplers?
Cov chaw ua haujlwm dav dav yog ua los ntawm zinc-plated steel hlau. Lawv pib lawv lub neej nyob rau hauv ib tug tuab kauj. Lub kauj yog unrolled, kos los ntawm steel tuag kom txo cov hlau rau nws txoj kab uas hla, thiab dov rov qab rau hauv hnyav 2,500-phaus yob.
Dab tsi yog sab hauv stapler?
Cov khoom tseem ceeb ntawm lub tsev ib txwm muaj lossis chaw ua haujlwm stapler suav nrog lub hauv paus; lub qhov quav (lub phaj hlau uas koj muab cov ntaub ntawv uas koj xav tau staple); cov ntawv xov xwm (uas tuav cov staples); lub taub hau hlau (uas npog cov ntawv xov xwm); thiab lub hanger (uas yog welded rau hauv paus thiab tuav tus pin uas txuas lub …
thawj stapler yog dab tsi?
Nyob rau xyoo 1866, George McGill tau txais US patent 56, 587 rau me me, khoov tau tooj dag ntawv fastener uas yog qhov ua ntej rau cov khoom siv niaj hnub no. Xyoo 1867, nws tau txais US patent 67, 665 rau ib lub xovxwm los ntxig rau hauv daim ntawv.
Lub teb chaws twg tsim stapler?
thawj tus paub stapler tau tsim nyob rau xyoo pua 18th hauv Fabkis rau King Louis XV. Txhua staple tau sau nrog insignia ntawm lub tsev hais plaub huab tais, raws li xav tau. Kev loj hlob ntawm kev siv ntawv hauv xyoo 19thtsim ib qho kev thov rau daim ntawv ceev ceev.
