US304763A - Key-fastener - Google Patents
Key-fastener Download PDFInfo
- Publication number
- US304763A US304763A US304763DA US304763A US 304763 A US304763 A US 304763A US 304763D A US304763D A US 304763DA US 304763 A US304763 A US 304763A
- Authority
- US
- United States
- Prior art keywords
- key
- slide
- shield
- fastener
- escutcheon
- 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 10
- 210000001699 lower leg Anatomy 0.000 description 10
- 239000002184 metal Substances 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 2
- 210000000474 Heel Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drugs Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003449 preventive Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 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
- My invention relates to an improved device which can be applied to the face of the lock dren and mislaid. Another advantage incident to my device is that it closes the key hole and acts as a preventive of prying and the injection of any somniferous substance.
- Figure 1 is a perspective View of my device, showing the key in position and locked.
- Fig. 2 is a rear View of the same when the slide is drawn out and the key unsecured.
- Fig. 3 is a horizontal cross-section taken throughthe shield and escutcheon in a line with the key-hole.
- Fig. 4 is an end View of a modified form of the locking-slide, and
- Fig. 5 is an end view of the locking-slide which is represented in Figs. 1,
- A is the shield,which is fastened to the face of the lock or the frame of the door, or it may form an integral part of the face of the lock.
- the escutcheon and shield may be stamped out of one piece of metal or brazed together,
- This slide is made,preferably, of spring brass or steel, and has a slot, t, designed to embrace and firmly hold the shank of the key. In case the shank be round, it is notched, asseen in Fig. 1, so that when the slide is pushed forward it will engage with the notch and se; curely hold the key.
- the notch is not necessary where the shank is flat or square, as then its sides engage with the locking-slot and prevent turning.
- the slide shown in Figs. 1 and 2, and more plainly in Figs. 3 and 5 is provided with a slight curvature near the thun1b-piece,while the balance of the slide on each side of the key-hole is perfectly flat or straight.
- the object of this curvature is to impart a certain amount of elastic force at that point, so that the slide will bind or hug the back of the escutcheon in case an attempt is made to force it back from the outside, and throw it against the bearing or shoulder formed by the shield A, as seen more plainly in Fig. 3, thus defeating the object desired.
- the slide may be made perfectly straight throughout, and have attached to its surface near the thumb-piece a small spring, 8, as seen in Fig. 4. This will accomplish the same work, though as a measure of simplicity and economy I prefer the slide as first described.
- the escutcheon is fastened to the shield in such a manner as to permit the slide'being inserted and worked from either side, in order that the device may be adapted toa right or left handed lock.
- a shield as A, with an esenteheon formed integral therewith, and to engage with the side of the shield and hold provided with slideways at its sides, formed it in looking position, substantially as deby striking up the metal to form the esscribed.
Description
'(No Model.) E. K. SUMERWELL.
KEY FASTENER. N0 304,763. Patented Sept. 9, 1884.
I V /I Nrrn STATES Fries.
A'IENT KEY-FASTENER.
SPECIFICATION forming part of Letters Patent No. 304,763, dated September 9, 1884.
Application lilcil March 10, 1884. (No model.)
To aZZ whom it may concern- Be it known that I, EDWARD K. SUMER- WELL, a citizen of the United States, residing in Oovington, Kenton county, and State of Kentucky, have invented certain new and useful Improvements in Key-Fasteners, of
which the following is a specification.
My invention relates to an improved device which can be applied to the face of the lock dren and mislaid. Another advantage incident to my device is that it closes the key hole and acts as a preventive of prying and the injection of any somniferous substance.
In the accompanying drawings, Figure 1 is a perspective View of my device, showing the key in position and locked. Fig. 2 is a rear View of the same when the slide is drawn out and the key unsecured. Fig. 3 is a horizontal cross-section taken throughthe shield and escutcheon in a line with the key-hole. Fig. 4 is an end View of a modified form of the locking-slide, and Fig. 5 is an end view of the locking-slide which is represented in Figs. 1,
' 2, and 3.
A is the shield,which is fastened to the face of the lock or the frame of the door, or it may form an integral part of the face of the lock.
B is the escutcheon attached to the shield. The escutcheon and shield may be stamped out of one piece of metal or brazed together,
sufficient space being left between them to admit of the slide S working back and forth. This slide is made,preferably, of spring brass or steel, and has a slot, t, designed to embrace and firmly hold the shank of the key. In case the shank be round, it is notched, asseen in Fig. 1, so that when the slide is pushed forward it will engage with the notch and se; curely hold the key. The notch is not necessary where the shank is flat or square, as then its sides engage with the locking-slot and prevent turning.
It will be noticed that the slide shown in Figs. 1 and 2, and more plainly in Figs. 3 and 5, is provided with a slight curvature near the thun1b-piece,while the balance of the slide on each side of the key-hole is perfectly flat or straight. The object of this curvature is to impart a certain amount of elastic force at that point, so that the slide will bind or hug the back of the escutcheon in case an attempt is made to force it back from the outside, and throw it against the bearing or shoulder formed by the shield A, as seen more plainly in Fig. 3, thus defeating the object desired.
It is the heel of the slide, which bears against the shoulder of the shield A, and prevents the slide from bcingoperated from the outside.
In lieu of the before-mentioned curvature. the slide may be made perfectly straight throughout, and have attached to its surface near the thumb-piece a small spring, 8, as seen in Fig. 4. This will accomplish the same work, though as a measure of simplicity and economy I prefer the slide as first described.
Hare lugs or ears for limiting the backward throw of the 'slide,while the thumb-piece P performs the same function relative to the 7 forward throw.
It will be noticed that when the slide is thrown forward it covers thekey-hole, so that there is no possibility of observing from the outside what is occurring within the room. This closing of the key-hole also insures protection from that class of depredators who, through such openings,first manage. by means of certain drugs, to throw their victims into insensibility, if not worse, and then ply their nefarious calling with the chances in favor of their non-detection greatly increased.
\Vhen it is desired to lock the key, all that is necessary to be done is to push the slide forward, so that its slot will engage with the shank of the key. This will effect the desired result. In order to release the key, the slide is moved in the opposite direction.
It will be observed that the escutcheon is fastened to the shield in such a manner as to permit the slide'being inserted and worked from either side, in order that the device may be adapted toa right or left handed lock.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
In a'key-fastener, a shield, as A, with an esenteheon formed integral therewith, and to engage with the side of the shield and hold provided with slideways at its sides, formed it in looking position, substantially as deby striking up the metal to form the esscribed.
cuteheon, in combination with a slide adapted EDXVARD K. SUMERXVELL. 5 to engage with the shank of the key, said slide WVitnesses:
being provided with lugs Z, and formed of thin i JEPTHA GARRARD,
metal, and bent to form a shoulder or stop, h, 1 ALFRED L. ROLLWAGEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US304763A true US304763A (en) | 1884-09-09 |
Family
ID=2373934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US304763D Expired - Lifetime US304763A (en) | Key-fastener |
Country Status (1)
Country | Link |
---|---|
US (1) | US304763A (en) |
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0
- US US304763D patent/US304763A/en not_active Expired - Lifetime
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