US155642A - Improvement in key-fasteners - Google Patents
Improvement in key-fasteners Download PDFInfo
- Publication number
- US155642A US155642A US155642DA US155642A US 155642 A US155642 A US 155642A US 155642D A US155642D A US 155642DA US 155642 A US155642 A US 155642A
- Authority
- US
- United States
- Prior art keywords
- key
- escutcheon
- fasteners
- improvement
- spring
- 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
- 239000000789 fastener Substances 0.000 title description 8
- 210000001699 lower leg Anatomy 0.000 description 6
- 210000003813 Thumb Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/04—Devices preventing the key or the handle or both from being used shaped as fork-like implements grasping and fixing the key or a handle, e.g. a thumb-turn
-
- 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
- Y10T70/7989—Key securers, fasteners or retainers
Definitions
- the object of my invention is to provide means by which a key may be secured automatically in a door-lock on the inside of the room, so as to prevent burglars turning the key by means of nippers and other instruments from the outside; and it consists in an automatic escutcheon or key-lock constructed and applied as hereinafter shown.
- B represents the key-hole plate, and a the escutcheon or locking device.
- the upper portion of the escutcheon is made broad, as shown in Fig. 1, one side of it being slotted, as shown at b, and the opposite side curved at c to form a handle or thumb support, by which the escutcheon may be readily operated.
- the handle portion 0 of the escutcheon is made broad, as shown in Fig. 1, one side of it being slotted, as shown at b, and the opposite side curved at c to form a handle or thumb support, by which the escutcheon may be readily operated.
- the guide h 011 the key-hole plate holds the upper portion of the escutcheon in position, and at the same time allows it to slide to and from the key-hole.
- the lower portion of the escutchcon or locking device S is made concavo-convex, in order to accommodate the spiral or coil spring which holds it to its work.
- I completely conceal the spring, which is, therefore, not liable to become injured or get out of position.
- the one end of the coil-spring is secured to the escutcheon, and the opposite end to the key-hole plate, while the screw f serves as a pivot on which the escutcheon works, and at the same time secures the escutcheon to the body of the lock.
Landscapes
- Lock And Its Accessories (AREA)
Description
0. 0.1210510. Key-Fasteners. No. 155,642.; Patented Oct; 6; 1874.
22727265365.- I I 4 1722x7222 i wmmw/ v THE GRAPHIC coyudro-utkanu PARK nuczmnr. v
UNITED STATES PATENT OFFIcn.
DANIEL 1'). ELDRIDGE, or CHICAGO, ILLINOIS.
' IMPROVEMENT IN KEY-FASTENERS.
Specification forming part of Letters Patent No. 1 55,642, datedOetober 6, 1874; application filed July 31, 1874.
To all whom it may concern: 1
Be it known that I, DANIEL D. ELDRIDGE a citizen of Chicago, State of Illinois, have invented a new and useful Improvement in Burglar- Proof Attachments for Locks, of which the following is a clear, full, and exact description, reference being had to the accompanying drawings making a part of this specification, in which- Figure'l represents the key-fastener. Fig. 2 shows the key-hole plate with guide and spring. Fig. 3 shows the key-hole plate, with the fastening device attached.
The object of my invention is to provide means by which a key may be secured automatically in a door-lock on the inside of the room, so as to prevent burglars turning the key by means of nippers and other instruments from the outside; and it consists in an automatic escutcheon or key-lock constructed and applied as hereinafter shown.
To enable others skilled in the art to make and use my invention, I will proceed to describe the particular manner in which I carry it out.
In the drawings, B represents the key-hole plate, and a the escutcheon or locking device. The upper portion of the escutcheon is made broad, as shown in Fig. 1, one side of it being slotted, as shown at b, and the opposite side curved at c to form a handle or thumb support, by which the escutcheon may be readily operated. The handle portion 0 of the escutcheon. extends slightly above the slotted portion, as shown at d, and forms a square shoulder, which comes in contact with the guide h on the key-hole plate, and thus forms a stop for the escutcheon when thrown by the spring i into a locking position, which is the case when the slot 12 passes over the square shank of the key of the lock, fitting it snugly, and not allowing the key to be turned until the escutcheon is removed or drawn back, as
shown in Fig. 1. The guide h 011 the key-hole plate holds the upper portion of the escutcheon in position, and at the same time allows it to slide to and from the key-hole. The lower portion of the escutchcon or locking device S is made concavo-convex, in order to accommodate the spiral or coil spring which holds it to its work. By this construction I completely conceal the spring, which is, therefore, not liable to become injured or get out of position. The one end of the coil-spring is secured to the escutcheon, and the opposite end to the key-hole plate, while the screw f serves as a pivot on which the escutcheon works, and at the same time secures the escutcheon to the body of the lock.
It is evident from the above description,
that if a key with a square shank, fitting the' slot 1), be inserted in the keyhole, as soon as the escutcheon is released from the thumb, it will spring forward and seize the shank of the key, and prevent the possibility of its being turned from the opposite side of the door; The action of the spring carries forward the escutcheon, and causes it to act automatically in securing the lock against burglars, and thus avoids the possibility of negligence in moving forward the locking device.
I am aware that it is not new to use a slotted escutcheon, and therefore do not claim this broadly; but
- What I claim as new, and desire to secure by Letters Patent, is I 4 The escutcheon a slotted at b, and provided I with the handle 0 and stop d, and having its lower portion S concavo-eonvex, in combination with the spring 45, key-hole plate B, and guide h, all .constructed and arranged substantially as and for the purpose set forth.
DANIEL D. ELDRIDGE. Witnesses:
G. W. J OHNSON, DE WITT O. GooDRIcH.
Publications (1)
Publication Number | Publication Date |
---|---|
US155642A true US155642A (en) | 1874-10-06 |
Family
ID=2225052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US155642D Expired - Lifetime US155642A (en) | Improvement in key-fasteners |
Country Status (1)
Country | Link |
---|---|
US (1) | US155642A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610500A (en) * | 1948-07-08 | 1952-09-16 | Illinois Tool Works | Lock retainer |
US5313812A (en) * | 1992-09-11 | 1994-05-24 | Eklund Sigurd T | Door lock security system |
US20030193080A1 (en) * | 2002-04-16 | 2003-10-16 | Cabahug Elsie Agdon | Robust leaded molded packages and methods for forming the same |
-
0
- US US155642D patent/US155642A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610500A (en) * | 1948-07-08 | 1952-09-16 | Illinois Tool Works | Lock retainer |
US5313812A (en) * | 1992-09-11 | 1994-05-24 | Eklund Sigurd T | Door lock security system |
US20030193080A1 (en) * | 2002-04-16 | 2003-10-16 | Cabahug Elsie Agdon | Robust leaded molded packages and methods for forming the same |
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