US188302A - Improvement in key-hole guards for locks - Google Patents
Improvement in key-hole guards for locks Download PDFInfo
- Publication number
- US188302A US188302A US188302DA US188302A US 188302 A US188302 A US 188302A US 188302D A US188302D A US 188302DA US 188302 A US188302 A US 188302A
- Authority
- US
- United States
- Prior art keywords
- key
- hole
- locks
- improvement
- gate
- 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 6
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/14—Closures or guards for keyholes
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/23—Cervical collars
-
- 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
- Y10T70/7915—Tampering prevention or attack defeating
- Y10T70/7955—Keyhole guards
Definitions
- A denotes the door, and B a mortise-lock letinto such door in the usual ⁇ manner.
- the key-hole to the bolt is shown at a as extending through an escutcheon-plate, C, having projected from it an arm, D, provided with a slot, b, as shown, such slot being i extended into the door and the back plate of the lock-case.
- a gate, E which is to be applied so as to be capable of being slid across the keyhole, so as to cut off any passage through it into the lock. From this gate a shank, c,
- ⁇ provided with a knob, d, extends through the slot b, in manner as represented.
- a latch, G pivoted to the slotted arm D a latch, G, provided with two notches, ⁇ e f, to receive the shank c in its extreme positions, and serve to hold the gate from being moved either forward or backward.
- the gate When the key is in the key-hole, the gate is entirely out of it, and will be held in 4place by the latch. After having locked the bolt and removed the key from the key-hole, and advanced the gate so as to close the passage into the lock, such gate may be kept in place by turning down the latch.
Description
E. W. -MoFFATT KEY-HOLE GUARDS FORYLOCKS.
Pa'tented March 1.3, 1877.
Foy.
Evy, o?
".PETERS. FHDTOLITHOGRAFHER. WASHINGTON. D vC.
UNITED STATES PATENT OEEIcEs ELIJAH w. MOEEATT, OE HYDE PARK, MASSACHUSETTS.
IMPROVEMENT IN KEY-HOLE/GUARDS FORl LOCKS.
Specification forming part of Letters Patent No. 188.302, dated March 13, 1877; application filed February 6, 1877.
To all whom it may concern Be it known that I, ELIJAH W. MOEFATT, of Hyde Park, of the county of Norfolk and State of Massachusetts, have invented a new and useful Safety Attachment or Key-Hole the outside of the door.
In the drawings, A denotes the door, and B a mortise-lock letinto such door in the usual `manner. 4The key-hole to the bolt is shown at a as extending through an escutcheon-plate, C, having projected from it an arm, D, provided with a slot, b, as shown, such slot being i extended into the door and the back plate of the lock-case. Within such case, and beneath the bolt, is a gate, E, which is to be applied so as to be capable of being slid across the keyhole, so as to cut off any passage through it into the lock. From this gate a shank, c,
` provided with a knob, d, extends through the slot b, in manner as represented. There is pivoted to the slotted arm D a latch, G, provided with two notches,` e f, to receive the shank c in its extreme positions, and serve to hold the gate from being moved either forward or backward.
When the key is in the key-hole, the gate is entirely out of it, and will be held in 4place by the latch. After having locked the bolt and removed the key from the key-hole, and advanced the gate so as to close the passage into the lock, such gate may be kept in place by turning down the latch.
l claim as my invention as follows:
1. The key-hole escutcheon -plate C, pro.- vided with the slotted arm D and the duplex notched latch Gr, arranged and applied as set forth.
2. The gate E, its shank c, and the duplex notched latch G, arranged and combined with the lock B, the door A, and the key-hole a, substantially as and to operate as specified.
ELIJAH W. MOFFATT.
Witnesses:
L. N. MLEEE, J. R. SNOW.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US188302A true US188302A (en) | 1877-03-13 |
Family
ID=2257709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US188302D Expired - Lifetime US188302A (en) | Improvement in key-hole guards for locks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US188302A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050101839A1 (en) * | 2003-11-11 | 2005-05-12 | Bertolero Arthur A. | Thorax mounted stabilization platform |
-
0
- US US188302D patent/US188302A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050101839A1 (en) * | 2003-11-11 | 2005-05-12 | Bertolero Arthur A. | Thorax mounted stabilization platform |
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