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#Padlock shim pdf
#Padlock shim series

Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.E05B67/24- Padlocks with sliding shackles, with or without rotary or pivotal movement with built- in cylinder locks.E05B67/22- Padlocks with sliding shackles, with or without rotary or pivotal movement.E05B67/06- Shackles Arrangement of the shackle.E05B- LOCKS ACCESSORIES THEREFOR HANDCUFFS.E05- LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES.229910000639 Spring steel Inorganic materials 0.000 description 1.

238000004519 manufacturing process Methods 0.000 description 4.

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Master Lock Co LLC filed Critical Master Lock Co LLC Priority to US597743A priority Critical patent/US2824439A/en Application granted granted Critical Publication of US2824439A publication Critical patent/US2824439A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Master Lock Co LLC Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US597743A Inventor Harry E Soref Daniel J Foote Current Assignee (The listed assignees may be inaccurate.

#Padlock shim pdf

Boron carbide - Found on Master Lock Magnum.- Google Patents US2824439A - Tamper-proof padlockĭownload PDF Info Publication number US2824439A US2824439A US597743A US59774356A US2824439A US 2824439 A US2824439 A US 2824439A US 597743 A US597743 A US 597743A US 59774356 A US59774356 A US 59774356A US 2824439 A US2824439 A US 2824439A Authority US United States Prior art keywords shackle padlock opening shim leg Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.Case hard - Also hardened steel, found on older padlocks.The stamp on the shackle indicates what material it is made of. Brass and stainless steel padlocks do not need plating, although they are sometimes plated anyway for appearance. The body of the padlock is usually also plated. Alloy steel shackles are plated with another metal such as nickel or chrome to protect them from rust.

Alloy steels with appropriate heat treating provide much higher cutting resistance to bolt-cutters. For example, a hardened steel shackle will be stamped "HARDENED" or a boron alloy shackle will be stamped "BORON ALLOY". The material that the shackle is made of is usually stamped in the center of the shackle. Corrosion-resistant padlocks usually have a brass or stainless steel shackle although these materials have low hardness and are easily cut with bolt-cutters.

Inexpensive padlocks usually have a shackle made of ordinary steel. The shackle of most padlocks is made from hardened steel, although more expensive padlocks may have boron alloy steels to make them more difficult to cut.

#Padlock shim series

The laminated padlock is constructed from a series of metal plates that are riveted together. Combination locks of this type are not recommended for outdoor use because they can fill up with rain water which causes them to rust. When the correct combination is entered, the notches on the tumblers line up and allow a latch to fall into the notches, releasing the shackle. The mechanism is very similar to that used in safes. The combination padlock is usually made with a metal "can" with three tumblers inside connected to a dial on the front.