US1495173A - Padlock - Google Patents
Padlock Download PDFInfo
- Publication number
- US1495173A US1495173A US590592A US59059222A US1495173A US 1495173 A US1495173 A US 1495173A US 590592 A US590592 A US 590592A US 59059222 A US59059222 A US 59059222A US 1495173 A US1495173 A US 1495173A
- Authority
- US
- United States
- Prior art keywords
- lock
- mold
- padlock
- casing
- armor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
Definitions
- This invention relates to p-adlocks whose casing is enclosed in protective shells or l0 armor of hard metal. Hitherto the armor of padlocks has been made of pieces of pressed or cast metal which were fastened to the enclosed casing of the padlock by rivets, screws or any other preferred fastening means and this involved considerable expenditure for labor without excluding the possibility of undoing the fastening means or forcing ofi' the armor by means of eX- plosives and thus depriving the lock of its protective coating.
- the object of this invention is to provide locks with seamless armor, i. e., with a protective shell consisting of only one piece and enclosing the entire mechanism of the 2.5 padlock.
- the armor has only one opening for the key of the lock and two other openings for the staple or bow of the saine.
- Locks with seamless armor of this kind are produced by first fitting the mechanism of the lock into a. rough, thin, sheet metal casing and then inserting this casing in 'a chill-mold so that the casing forms a core in the mold.
- Auxiliary cores are introduced through the walls of the chill-mold and penetrate into the thin metal casing. These auxiliary cores suspend the lock in the proper position in the interior of the chillmold and when the cast metal, which forms the armor, is poured in, it completely covers the sheet metal casing, except at points where the auxiliary cores are situated, holes being thus formed in the armor by the auxiliary cores, the one hole forming the key-hole and the two other holes serving to receive the ends of the staple or bow of the padlock.
- Fig.l l is a cross section of the chill-mold and an enclosed lock on the line A-B of Fig. 2 and Fig. 2 is a plan view of the mold.
- the chill-mold in which the coating or armor is cast round thefpadlock, consists of a bottom plate 5 andv an upper plate 2 with a .mouth 7 into which the cast metal is poured.
- the top half 2 of the mold' is provided with handles 3.
- Levers 4 are provided for pulling out the auxiliary cores 6 and 8, the ends of the cores 6 penetrating into the primary or internal casing l of the padlock ⁇ A and the inner end of the core 8 penetrating into, the opposite side of this casing.
- the cores 6 and 8 hold the internal casing l of the lock with its mechanism suspended in the chill-mold -so that when liquid metal is poured in it will completely envelopthe casing l except where the auxiliary cores 6 and 8 form holes for thekey and the ends of the bow of the padlock.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
Description
May 27', 1924. 1,495,173
M. HACKLNDER PADLOCK Filed Sent. 26, 1922 Patented May 27, 1,924.
nutren s'rarss weer PATENT PADLOCK.
Application filed September 26, 1922. Serial No. 590,582.
To all whom t may concern:
Be it known that I, MAX HACKLNDER, citizen of the Republic of Germany, residing at Neviges, Rhineland. Germany, have invented new and useful Improvements in Padlocks, of which the following is a speciiication.
This invention relates to p-adlocks whose casing is enclosed in protective shells or l0 armor of hard metal. Hitherto the armor of padlocks has been made of pieces of pressed or cast metal which were fastened to the enclosed casing of the padlock by rivets, screws or any other preferred fastening means and this involved considerable expenditure for labor without excluding the possibility of undoing the fastening means or forcing ofi' the armor by means of eX- plosives and thus depriving the lock of its protective coating.
The object of this invention is to provide locks with seamless armor, i. e., with a protective shell consisting of only one piece and enclosing the entire mechanism of the 2.5 padlock. The armor has only one opening for the key of the lock and two other openings for the staple or bow of the saine.
Locks with seamless armor of this kind are produced by first fitting the mechanism of the lock into a. rough, thin, sheet metal casing and then inserting this casing in 'a chill-mold so that the casing forms a core in the mold. Auxiliary cores are introduced through the walls of the chill-mold and penetrate into the thin metal casing. These auxiliary cores suspend the lock in the proper position in the interior of the chillmold and when the cast metal, which forms the armor, is poured in, it completely covers the sheet metal casing, except at points where the auxiliary cores are situated, holes being thus formed in the armor by the auxiliary cores, the one hole forming the key-hole and the two other holes serving to receive the ends of the staple or bow of the padlock. After the shell` as of aluminium, has been cast round the lock and after the molten metal has hardened the auxiliary cores which are attached to levers, are pulled out and after the top, part of the chill-mold is lifted the encased lock will be exposed to view.
Apart from the greatest security obf countersunk holes, which is necessary to afford security in ordinary locks, because they are completely covered in by the metal afterwards cast round the casing and have nothing to do with the external appearance of the lock. The shrinking of the cast metal covering results in the entire mechanism of the lock being firmly held so that all loosening of the rivets and screw, which would be liable to take place when the lock is constantly subjected to vibrations, is en-v tirely precluded.
The invention is shown in the drawing y in .which- Fig.l l is a cross section of the chill-mold and an enclosed lock on the line A-B of Fig. 2 and Fig. 2 is a plan view of the mold.
The chill-mold, in which the coating or armor is cast round thefpadlock, consists of a bottom plate 5 andv an upper plate 2 with a .mouth 7 into which the cast metal is poured. The top half 2 of the mold'is provided with handles 3. Levers 4 are provided for pulling out the auxiliary cores 6 and 8, the ends of the cores 6 penetrating into the primary or internal casing l of the padlock`A and the inner end of the core 8 penetrating into, the opposite side of this casing. The cores 6 and 8 hold the internal casing l of the lock with its mechanism suspended in the chill-mold -so that when liquid metal is poured in it will completely envelopthe casing l except where the auxiliary cores 6 and 8 form holes for thekey and the ends of the bow of the padlock.
l. Process for forming aseamless shell on a lock consisting in suspending the lock in a chill-mold by means of auxiliary cores and thereupon pouring metal into the mold.
2. Process for forming a seamless shell on padlocks consisting in suspending the name to this specification in thepresence of lock in a chill-mold by means of auxiliary tWo subscribing Witnesses.
cores ada ted to form holes in the shell for the bow aired key of the padlock, and pour- HACKLANDER' 5 ing metal into the mold in whichl the pad- Witnesses:
lock is suspended. PAUL F. KRANN In testimony whereof I have signed my M. MAmNGoWsKI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US590592A US1495173A (en) | 1922-09-26 | 1922-09-26 | Padlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US590592A US1495173A (en) | 1922-09-26 | 1922-09-26 | Padlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1495173A true US1495173A (en) | 1924-05-27 |
Family
ID=24362850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US590592A Expired - Lifetime US1495173A (en) | 1922-09-26 | 1922-09-26 | Padlock |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1495173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983931A (en) * | 2017-12-20 | 2018-05-04 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
-
1922
- 1922-09-26 US US590592A patent/US1495173A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983931A (en) * | 2017-12-20 | 2018-05-04 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
| CN107983931B (en) * | 2017-12-20 | 2019-08-06 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
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