US189503A - Improvement in keys for locks - Google Patents
Improvement in keys for locks Download PDFInfo
- Publication number
- US189503A US189503A US189503DA US189503A US 189503 A US189503 A US 189503A US 189503D A US189503D A US 189503DA US 189503 A US189503 A US 189503A
- Authority
- US
- United States
- Prior art keywords
- stem
- keys
- shank
- bit
- locks
- 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
- 210000001699 lower leg Anatomy 0.000 description 18
- 239000002184 metal Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- CTSLUCNDVMMDHG-UHFFFAOYSA-N Bromacil Chemical compound CCC(C)N1C(=O)NC(C)=C(Br)C1=O CTSLUCNDVMMDHG-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
-
- 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 [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
-
- 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 [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7842—Single shank or stem
- Y10T70/7847—Round rigid
-
- 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 [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7842—Single shank or stem
- Y10T70/7859—Flat rigid
Definitions
- My improvements relate to composite keys of that class in which the bow and-shank are stamped from one piece of sheet metal, and afterward secured to the stem or spindle which carries the bit; and they consist in an improved construction of such a key, as hereinafter specifically set forth and claimed.
- Figure ,1 is a perspective view of-my key complete.
- Fig. 2 is a view of the bow and stem united.
- Fig. 3 is a longitudinal section through the stem, showing the mode of uniting it to the shank.
- Fig. 4 is an end view of the stem bored and slotted to re ceive the bit.
- Fig. 5 is a view of the bit detached.
- a composite key formed of a sheet-metal shank and how, a cast-metal stem, and a bit secured in a slotted recess in the stem, substantially as described.
Landscapes
- Adornments (AREA)
Description
J. SCHADE.
KEYS FOR LOCKS.
No. 189,503. Patented April 10, 1877.
If 4 F? i WITNESSES. INVEJVTO R %,f B his Attorneys-10%. Ya-finale,
N,PETER3. PNOYO-LITHOGRAPHER. WASHINGTON. D C.
UNITED STATES PATENT QFFICEc JOHN SCHADE, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE LOCK MANUFACTURING COMPANY, OF SAME PLACE.
IMPROVEMENT IN KEYS FOR LOCKS.
Specification forming part of Letters Patent No. 189,503, dated April 10, 1877; application filed March 13, 1877.
To all whom it may concern Be it known that 1, JOHN SGHADE, of Stamford, in the county of Fairfield and State of Connecticut, have invented certain Improvements in the Manufacture of Keys, of which the following is a specification that will enable persons skilled in the art to make and use the same, reference being had to the accompanying drawings.
My improvements relate to composite keys of that class in which the bow and-shank are stamped from one piece of sheet metal, and afterward secured to the stem or spindle which carries the bit; and they consist in an improved construction of such a key, as hereinafter specifically set forth and claimed.
In the drawings, Figure ,1 is a perspective view of-my key complete. Fig. 2 is a view of the bow and stem united. Fig. 3 is a longitudinal section through the stem, showing the mode of uniting it to the shank. Fig. 4 is an end view of the stem bored and slotted to re ceive the bit. Fig. 5 is a view of the bit detached.
In the manufacture of my key, I first stamp out the bow and shank from a single piece of sheet-steel. I then bore one or more holes through the small end, place it in a suitable mold, and cast upon it a cylindrical stem, usually of brass. The molten metal surrounds and enters the holes in the ends of the shanks, and when cooled the shank and stem become practically riveted very securely together, as shown in the sectional View, Fig. 3. Instead of boring holes, notches might beformed in the shank to receive the cast metal. The next step is to borea hole longitudinally in the end of the stem, and saw open one side of it, forming a slotted recess for the reception of the bit, as indicated in Fig. 4. The bit, Fig. 5, made from rolled or drawn stock, is then inserted and secured in the stem, and the key finished in the usual Way.
I do not claim the tenon on the end of the shank shown in Fig. 3 as my invention, nor the recess in the end of the tenon.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-
1. A composite key formed of a sheet-metal shank and how, a cast-metal stem, and a bit secured in a slotted recess in the stem, substantially as described.
2. The combination of a sheet-metal key shank and bow, unprovided with a bit, and a solid cast-metal stem, unprovided with a bit, substantially as and for the purpose described.
3. The process of forming a key, substantially as described, consisting in stamping out the bow and shank, casting the stem upon it, and then forming a slotted recess in the stem, and securing the bit within it.
In testimony whereof I have hereunto subscribed my name. JOHN SCHADE.
Witnesses:
WALTER FULLER, E. D. OGDEN, Jr.
Publications (1)
Publication Number | Publication Date |
---|---|
US189503A true US189503A (en) | 1877-04-10 |
Family
ID=2258910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US189503D Expired - Lifetime US189503A (en) | Improvement in keys for locks |
Country Status (1)
Country | Link |
---|---|
US (1) | US189503A (en) |
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0
- US US189503D patent/US189503A/en not_active Expired - Lifetime
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