US786842A - Keyhole-guard. - Google Patents

Keyhole-guard. Download PDF

Info

Publication number
US786842A
US786842A US1904215858A US786842A US 786842 A US786842 A US 786842A US 1904215858 A US1904215858 A US 1904215858A US 786842 A US786842 A US 786842A
Authority
US
United States
Prior art keywords
shank
lock
stem
key
guard
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
Application number
Inventor
Robert I Robeson
Original Assignee
Robert I Robeson
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert I Robeson filed Critical Robert I Robeson
Priority to US1904215858 priority Critical patent/US786842A/en
Application granted granted Critical
Publication of US786842A publication Critical patent/US786842A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00Devices preventing the key or the handle or both from being used
    • E05B13/04Devices 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/7915Tampering prevention or attack defeating
    • Y10T70/7989Key securers, fasteners or retainers
    • Y10T70/7994Portable

Description

n PATENTED APR. 11, 19o5. n.21; ROBESON; H KBYHOLB GUARD'.
"APPLIGATIOVRIILED JULY 9, 1904'.
VdlllllflliUN/JHHHIIIHII1N4-I- l l l c Il lli 11 nventor l Witnesses 4 in the usual manner.`
UNITED STATES Patented April 11, 1905.
PATENT OFFICE.
KEYHOLE-GURD.
SPECIFICATION forming part of Letters Patent No, 786,842, dated Apri] 11, 1905. Application iiledxl'ulyg, 1904. Serial No. 215,85-8.
To wel whom it may concern:
Be it known that I, ROBERT I. RoBEsoN, a citizen of the United States, residing at South Omaha, in vthe county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Keyhole-Guards, of which the following is a specification.
This invention provides a simple guard device for use in connection with locks of doors to prevent picking of the lock by any one having illegal intentions or otherwise.
As is well known, the ordinary lock at present in use can readily be picked by experts, even though the key be left in the key-opening after the door has been closed and locked It is therefore a desideratum of my invention to secure a handy device which may be readily carried by travelers or others having use for the same and which may be introduced into the key-opening of a door or like part and so engaged and positioned as to obviate all likelihood of unlocking of the door from the outside thereof.
For a full descriptionof the invention and the merits thereof and also to acquire a kno wledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.
While the essential and characteristic features of the invention are susceptible of modiiication, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which l Figure 1 is a side elevation of my invention, showing same applied to a door and in operative position, the door and adjacent parts being shown in dotted lines. Fig. 2 is a perspective view showing' the several parts of my guard-device separated. Fig. 3 is a vertical transverse sectional view taken on the line 3 3 of Fig. 1. g
Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.
Specifically describing the same, vthe invention consists principally of a shank or stem 1, adapted to be introduced into the key-opening of a door and which when once in position will effectively prevent the insertion of a second key, either skeleton or original. In order to secure the stem or shank of my device in position, so as to prevent all liability of displacement thereof, peculiar lock means are utilized. The lock devices above mentioned consist, essentiallyfof a nib or engaging member 2, extended angularly from the shank or stem 1, and this member 2 is designed to engage Within the lock. (Shown in dotted lines in Fig. 1 and designated 8.) The stem 1 of the device is rounded or of circular form adjacent one end, so as to readily admit of inser-tion into the key-opening and of revolutory movement of said stem therein in order to dispose the nib 2 in a horizontal position, so that same will engage the inner side of the lock-casing. The nib will thus prevent displacement of the stem inwardly when thrown into a horizontal position by manipulation of the stem. The lock device, in the form of a slidable member 4, is mounted upon the shank or stem 1, and this member is adapted by a longitudinal movement to be thrown into the key-opening,'so as to thereby prevent revolution of the'stem 1 with a view to disengage the nib 2 thereof, so as to displace the stem from the key-opening. The lock member 4 is provided upon its upper side with a journal-tongue 5, which is received in a groove 6 upon the under side of the shank of the guard device. The shank 1 is longitudinally slotted, as shown at 7 and a pin 8 projects upwardly from the lock member and passes through the slot 7 of the shank, so as to secure the lock member thereto. The pin 8 further constitutes apivot upon which a latch 9 is mounted, and this latch 9 is adapted to engage the shank 1, so as to prevent slidable movement of the lock member 4 when same has been inserted into the key-opening. The latch 9 is pivoted at one end, and the other end is cut away on an incline, as shown at 10, so as to engage the outer portion of the shank 1 with a sort of cam action. yThe outer ends of the shank 1 and the lock member 4 are enlarged, as shown at 1 1 and 11, respectively, so asto form a finger-piece and may be readily grasped in operating the device. The shank l also is provided with an enlargement between its ends, as shown at 12, which limits the movement of the shank or stem in inserting the same within the key-opening.
It will be understood that the guard may be used in connection with rim-locks, it being illustrated in connection with a mortise-lock of common type. When used for rim-locks, the nilo 2 would be carried by a shorter shank or stem, since this nib must engage the inner side of the casing of the lock only.
In using the device after the door has been locked .the key thereof is removed from the lock and the lock member 4 of the device is slid rearwardly to the limit of its movement, the pin 8 forming a stop means for limiting` such movement, and the stem l is then introduced into the key-opening and turned so as to throw the nib 2 into a horizontal position. The above having been accomplished, the lock member is then given a longitudinal movement, so as to throw its inner end into the keyopening, after which the latch 9 is by a pivotal movement thrown into engagement with the shank of the device, and said lock member is then firmly held from movement. The lock member 4 having been locked the guard device is positively held within the key-opening and forms an elfectual bar to the one who attempts to pick the lock.
Having thus described the invention, what is claimed as new is- 1. In a keyhole-guard, the combination of a shank or stem adapted to be introduced into the key-opening, a nib projected at an angle from the shank, a lock member slidably mounted upon the shank, said shank being provided with a longitudinal slot, a pin projected from the lock member and operating in the slot of the shank, said pin limiting the movement of the lock member upon the shank, and means for preventing movement of the lock member.
2. In a keyhole-guard, the combination of a shank provided longitudinally thereof with a slot, an integral nib projected angularly from the shank, a lock member slidable longitudinally of the shank, a pin projected from the lock member and passing through the slot of the shank, and a latch pivoted to the pin aforesaid, and adapted to engage the shank to prevent movement of the lock member.
3. In a keyhole-guard, the combination of a shank or stem adapted to be introduced into the key-opening, an engaging member projected from the shank at an angle thereto, a slidable lock member disposed upon the shank, and a latch carried by the lock member and engaging the shank, and preventing movement of said lock member.
4. In a keyhole-guard, the combination of a shank or stem adapted to be introduced into the key-opening, an integral nib projected from the shank, a lock member disposed upon the shank, and a pivoted latch engaging the shank and preventing movement of said lock member.
5. In a keyhole-guard, the combination of a shank or stem adapted to be introduced into a key-opening, anib projected from said shank or stem, alock member slidably mounted upon the shank, and a latch pivoted to the lock member and cooperating with the shank to prevent displacement of the guard from the key-opening.
In testimony whereof I aiix my signature in presence of two witnesses.
ROBERT I. ROBESON. Witnesses:
JOHN MCMILLAN, R. B. MONTGOMERY.
US1904215858 1904-07-09 1904-07-09 Keyhole-guard. Expired - Lifetime US786842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1904215858 US786842A (en) 1904-07-09 1904-07-09 Keyhole-guard.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1904215858 US786842A (en) 1904-07-09 1904-07-09 Keyhole-guard.

Publications (1)

Publication Number Publication Date
US786842A true US786842A (en) 1905-04-11

Family

ID=2855333

Family Applications (1)

Application Number Title Priority Date Filing Date
US1904215858 Expired - Lifetime US786842A (en) 1904-07-09 1904-07-09 Keyhole-guard.

Country Status (1)

Country Link
US (1) US786842A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493878A (en) * 1992-01-24 1996-02-27 Kensington Microware Limited Computer physical security device
WO1996015347A1 (en) * 1994-11-15 1996-05-23 Kensington Microware Limited Computer physical security device
US5983679A (en) * 1998-11-17 1999-11-16 Micro Security Devices, Inc. Portable anti-theft locking anchor
US6000252A (en) * 1992-01-24 1999-12-14 Acco Brands, Inc. Computer physical security device
US6006557A (en) * 1995-02-08 1999-12-28 Acco Brands, Inc. Computer physical security device
US6112561A (en) * 1994-08-26 2000-09-05 Acco Brands, Inc. Security device for a portable computer
US6662602B1 (en) 1996-11-08 2003-12-16 Acco Brands, Inc. Security device for a portable computer
US6735990B1 (en) 1992-01-24 2004-05-18 Acco Brands, Inc. Computer physical security device
US6779370B2 (en) 2002-02-27 2004-08-24 Belkin Components Security device, method of manufacturing the same, and method of operating the same
US20050028571A1 (en) * 2001-08-13 2005-02-10 Kensington Technology Group Portable electronic device physical security
US20050150262A1 (en) * 1993-10-15 2005-07-14 Acco Brands, Inc. Computer physical security device
US20050178173A1 (en) * 2002-07-24 2005-08-18 Acco Brands, Inc. Lock for securing an article on display
US20060112740A1 (en) * 2004-11-29 2006-06-01 Acco Brands, Inc. Security device including engagement member
US20060123242A1 (en) * 2004-09-21 2006-06-08 Acco Brands Usa, Llc Biometric security device
US20060117814A1 (en) * 2003-07-23 2006-06-08 Acco Brands Usa Llc Computer physical security device with retractable cable
US7111479B2 (en) 1992-01-24 2006-09-26 Acco Brands Usa Llc Computer physical security device
US20070113608A1 (en) * 2005-11-18 2007-05-24 Acco Brands Usa Llc, Locking device with passage
US20070220931A1 (en) * 1992-01-24 2007-09-27 Acco Brands Usa Llc Computer physical security device
US20080034817A1 (en) * 2006-08-09 2008-02-14 Asustek Computer Inc. Lock module
US7415852B1 (en) 2004-10-06 2008-08-26 Acco Brands Usa Llc Tubular lock with theft deterrent
US7614266B2 (en) 2007-10-15 2009-11-10 Acco Brands Usa Llc Security apparatus with reset mechanism
US20100139337A1 (en) * 2007-05-25 2010-06-10 Acco Brands Usa Llc Security system with lock interface member with multiple apertures
US7997106B2 (en) 2009-05-29 2011-08-16 Acco Brands Usa Llc Security apparatus including locking head and attachment device
USD651889S1 (en) 2011-04-19 2012-01-10 Acco Brands Usa Llc Security apparatus

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735990B1 (en) 1992-01-24 2004-05-18 Acco Brands, Inc. Computer physical security device
US5502989A (en) * 1992-01-24 1996-04-02 Kensington Microware Limited Computer physical security device
US20040206138A1 (en) * 1992-01-24 2004-10-21 Kensington Microware Limited Computer physical security device
US20070220931A1 (en) * 1992-01-24 2007-09-27 Acco Brands Usa Llc Computer physical security device
US6000251A (en) * 1992-01-24 1999-12-14 Acco Brands, Inc. Computer physical security device
US6000252A (en) * 1992-01-24 1999-12-14 Acco Brands, Inc. Computer physical security device
US5493878A (en) * 1992-01-24 1996-02-27 Kensington Microware Limited Computer physical security device
US7100403B2 (en) 1992-01-24 2006-09-05 Acco Brands Usa Llc Computer physical security device
US6155088A (en) * 1992-01-24 2000-12-05 Acco Brands, Inc. Computer physical security device
US7111479B2 (en) 1992-01-24 2006-09-26 Acco Brands Usa Llc Computer physical security device
US6553794B1 (en) 1992-01-24 2003-04-29 Acco Brands, Inc. Computer physical security device
US6588241B1 (en) 1992-01-24 2003-07-08 Acco Brands, Inc. Computer physical security device
US7143614B1 (en) 1992-01-24 2006-12-05 Acco Brands Usa Llc Computer physical security device
US20050150263A1 (en) * 1993-10-15 2005-07-14 Acco Brands, Inc. Computer physical security device
US7201029B2 (en) 1993-10-15 2007-04-10 Acco Brands Usa Llc Computer physical security device
US7100404B2 (en) 1993-10-15 2006-09-05 Acco Brands Usa Llc Computer physical security device
US20050150262A1 (en) * 1993-10-15 2005-07-14 Acco Brands, Inc. Computer physical security device
US6112561A (en) * 1994-08-26 2000-09-05 Acco Brands, Inc. Security device for a portable computer
WO1996015347A1 (en) * 1994-11-15 1996-05-23 Kensington Microware Limited Computer physical security device
US6006557A (en) * 1995-02-08 1999-12-28 Acco Brands, Inc. Computer physical security device
US6662602B1 (en) 1996-11-08 2003-12-16 Acco Brands, Inc. Security device for a portable computer
US6321579B1 (en) 1998-11-17 2001-11-27 Micro Security Devices Inc. Portable anti-theft locking anchor
US5983679A (en) * 1998-11-17 1999-11-16 Micro Security Devices, Inc. Portable anti-theft locking anchor
US7204106B2 (en) 2001-08-13 2007-04-17 Acco Brands Usa Llc Portable electronic device physical security
US20050028571A1 (en) * 2001-08-13 2005-02-10 Kensington Technology Group Portable electronic device physical security
US6971254B2 (en) 2002-02-27 2005-12-06 Belkin Components Security device, method of manufacturing the same, and method of operating the same
US20050022566A1 (en) * 2002-02-27 2005-02-03 Bellow Stephen Lester Security device, method of manufacturing the same, and method of operating the same
US6779370B2 (en) 2002-02-27 2004-08-24 Belkin Components Security device, method of manufacturing the same, and method of operating the same
US7409842B2 (en) 2002-07-24 2008-08-12 Acco Brands Usa Llc Lock for securing an article on display
US20050178173A1 (en) * 2002-07-24 2005-08-18 Acco Brands, Inc. Lock for securing an article on display
US7647796B2 (en) 2003-07-23 2010-01-19 Acco Brands Usa Llc Computer physical security device with retractable cable
US20060117814A1 (en) * 2003-07-23 2006-06-08 Acco Brands Usa Llc Computer physical security device with retractable cable
US7191623B2 (en) 2003-07-23 2007-03-20 Acco Brands Usa Llc Computer physical security device with retractable cable
US20060123242A1 (en) * 2004-09-21 2006-06-08 Acco Brands Usa, Llc Biometric security device
US7415852B1 (en) 2004-10-06 2008-08-26 Acco Brands Usa Llc Tubular lock with theft deterrent
US20060112740A1 (en) * 2004-11-29 2006-06-01 Acco Brands, Inc. Security device including engagement member
US7963132B2 (en) 2005-11-18 2011-06-21 Acco Brands Usa Llc Locking device with passage
US7500371B2 (en) 2005-11-18 2009-03-10 Acco Brands Usa Llc Locking device with passage
US20070113608A1 (en) * 2005-11-18 2007-05-24 Acco Brands Usa Llc, Locking device with passage
US7730751B2 (en) 2005-11-18 2010-06-08 Acco Brands Usa Llc Locking device with passage
US20080034817A1 (en) * 2006-08-09 2008-02-14 Asustek Computer Inc. Lock module
US20100139337A1 (en) * 2007-05-25 2010-06-10 Acco Brands Usa Llc Security system with lock interface member with multiple apertures
US8230707B2 (en) 2007-05-25 2012-07-31 ACCO Brands Corporation Security system with lock interface member with multiple apertures
US7614266B2 (en) 2007-10-15 2009-11-10 Acco Brands Usa Llc Security apparatus with reset mechanism
US8042366B2 (en) * 2009-05-29 2011-10-25 Acco Brands Usa Llc Security apparatus including attachment device
US7997106B2 (en) 2009-05-29 2011-08-16 Acco Brands Usa Llc Security apparatus including locking head and attachment device
US8001812B2 (en) 2009-05-29 2011-08-23 Acco Brands Usa Llc Security apparatus including locking head
USD670553S1 (en) 2011-04-19 2012-11-13 ACCO Brands Corporation Attachment device for security apparatus
USD651889S1 (en) 2011-04-19 2012-01-10 Acco Brands Usa Llc Security apparatus
USD660682S1 (en) 2011-04-19 2012-05-29 Acco Brands Usa Llc Security apparatus
USD661975S1 (en) 2011-04-19 2012-06-19 ACCO Brands Corporation Attachment device for security apparatus

Similar Documents

Publication Publication Date Title
US786842A (en) Keyhole-guard.
US1094279A (en) Hasp-lock.
US426389A (en) lacey
US316574A (en) Door-lock
US1004690A (en) Lock.
US1018077A (en) Door-lock.
US391826A (en) taylor
US1253169A (en) Lock.
US528269A (en) Attachment for locks
US293693A (en) Hasp-lock
US261789A (en) thompson
US562515A (en) -enures
US958667A (en) Guard door-key.
US771305A (en) Lock.
US416467A (en) Charles l
US567063A (en) alfors
US947048A (en) Door-lock.
US395259A (en) Edward barrett
US1162647A (en) Key-fastener.
US1188440A (en) Key-fastener.
US371420A (en) Thirds to elijah y
US1263471A (en) Lock.
US541947A (en) Rim-lock
US139118A (en) Improvement in locks for sliding doors
US1421316A (en) Lock