US1259128A - Lock. - Google Patents

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Publication number
US1259128A
US1259128A US17657617A US1259128A US 1259128 A US1259128 A US 1259128A US 17657617 A US17657617 A US 17657617A US 1259128 A US1259128 A US 1259128A
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US
United States
Prior art keywords
key
bolt
lock
door
keyhole
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
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Inventor
David H Pingree
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US17657617 priority Critical patent/US1259128A/en
Application granted granted Critical
Publication of US1259128A publication Critical patent/US1259128A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/14Closures or guards for keyholes
    • E05B17/142Closures or guards for keyholes with key-operated locks, e.g. padlocks
    • 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
    • Y10T70/7955Keyhole guards
    • Y10T70/7977Key-controlled

Definitions

  • the purpose of this invention is the construction of a key-actuated lock wherein the key, after the bolt has been thrown from the inside of the apartment, cannot be pushed in from the outside and a skeleton key used for opening the door.
  • Another result of my invention is the effecting of means whereby the locking of the door automatically closes the key-hole against prying eyes.
  • Figure 1 is an elevation of a lock embodying my improvement, a part of the case being broken away to eX- pcse the interior.
  • Fig. 2 is an elevation of the lower part of the same.
  • Fig. 3 is a' sect onal View on the line X-X in Fig. 1.
  • Fig. 4 is a perspective view of the bolt alone, having my device formed thereon.
  • the lock upon which my improvement is shown as applied is of a well known construction, comprising a case composed of two separable sections 1 and 2, keyholes 3 and 4 and a bolt 5.
  • a finger 6 preferably integral therewith, and disposed to be close beside the line joining the two keyholes, when the bolt is in its unlocked position.
  • an elbow 7 passing beneath the level of the keyholes and terminating in an angular plate 9, the latter being arranged to be outside the range of the keyholes when the bolt is in its unlocked position, but to be brought therein when the bolt is thrown to its locked position, as indicated by Fig. 2.
  • the plate or guard 9 is out of the way of the keyhole, and the key can be inserted and removed without interference; so also after the key has been inserted from the outside of the apartment, the key can be freely removed after locking the door; but after the key has been introduced from within and the bolt thrown, the guard 9 comes between the ward of the key and the inner keyhole 3, and the key can no longer be withdrawn.
  • the guard 9 with a wing 10 positioned to remain close beside the range of the keyholes after the bolt has received its locking throw, as an aid in unlocking the door from the outside. 1 fter the key has been inserted, it cannot be turned in the wrong direction, as is possible with similar locks not given my improvement, but the manipulator immediately notes he can turn the key in but one direction, and that the correct one.
  • a further advantage derived from the wing 10 is the hindrance thereby given to picking the lock by means of a bent wire. If it were not for this wing, the key could be turned from the outside to carry its ward toward the right, as viewed in Fig. 2, and thereby leave a clear space from the key hole to the bolt and its ward; but by providing the wing 10, the key cannot be turned backward, and if it is turned oppositely it remains a barrier between the keyhole and the bolt efiectually stopping the passage of a wire to the bolt.
  • a lock comprising a case having a keyhole, and a bolt formed with a downwardly extended finger, a horizontal elbow projecting from the lower end of said finger below said keyhole, and a guard-plate rising from the said elbow, the plate and finger being spaced to stand at opposite sides of the keyhole when the bolt is in its unlocked posh ing therefrom below the level of the key- Copies of this patent may be obtained for hole, and a Winged plate rising from the extremity of said elbow.

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  • Lock And Its Accessories (AREA)

Description

DAVID H. PINGREE, 0F MELROSE, MASSACHUSETTS.
Lock. 7
Specification of Letters Patent.
Patented Mar. 12, 1918.
Application filed June 23, 1917. Serial No. 176.576.
T 0 all whom it may concern:
Be it known that 1, DAVID H. PrNonnn, a citizen of the United States, and a resident of Melrosc, in the county of Middlesex and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact specification.
The purpose of this invention is the construction of a key-actuated lock wherein the key, after the bolt has been thrown from the inside of the apartment, cannot be pushed in from the outside and a skeleton key used for opening the door. Another result of my invention is the effecting of means whereby the locking of the door automatically closes the key-hole against prying eyes.
In carrying my invention into efiectI provide the bolt of the lock with a plate which screens the key hole when the bolt is thrown, thereby shutting olf vision through the hole and preventing the key from being pushed in from the outside of the door.
Referring to the drawings forming part of this specification, Figure 1 is an elevation of a lock embodying my improvement, a part of the case being broken away to eX- pcse the interior. Fig. 2 is an elevation of the lower part of the same. Fig. 3 is a' sect onal View on the line X-X in Fig. 1. Fig. 4 is a perspective view of the bolt alone, having my device formed thereon.
The lock upon which my improvement is shown as applied is of a well known construction, comprising a case composed of two separable sections 1 and 2, keyholes 3 and 4 and a bolt 5. From the bolt descends a finger 6 preferably integral therewith, and disposed to be close beside the line joining the two keyholes, when the bolt is in its unlocked position. Rigid with the lower end of this finger is an elbow 7 passing beneath the level of the keyholes and terminating in an angular plate 9, the latter being arranged to be outside the range of the keyholes when the bolt is in its unlocked position, but to be brought therein when the bolt is thrown to its locked position, as indicated by Fig. 2.
Consequently, when the door is unlocked, the plate or guard 9 is out of the way of the keyhole, and the key can be inserted and removed without interference; so also after the key has been inserted from the outside of the apartment, the key can be freely removed after locking the door; but after the key has been introduced from within and the bolt thrown, the guard 9 comes between the ward of the key and the inner keyhole 3, and the key can no longer be withdrawn.
It is, of course, not desirable to provide a guard as 9 for the outer keyhole i, inasmuch as then the key could not be removed when looking the door from the outsde; and it is no drawback to have the key incapable of removable after locking the door from the inside, for practically all people leave the key in the lock at such times.
I prefer to form the guard 9 with a wing 10 positioned to remain close beside the range of the keyholes after the bolt has received its locking throw, as an aid in unlocking the door from the outside. 1 fter the key has been inserted, it cannot be turned in the wrong direction, as is possible with similar locks not given my improvement, but the manipulator immediately notes he can turn the key in but one direction, and that the correct one.
As shown in Fig. 2, the presence of the guard 9 in the range of the keyholes after locking the door, entirely closes the same to any inquisitive eye.
A further advantage derived from the wing 10 is the hindrance thereby given to picking the lock by means of a bent wire. If it were not for this wing, the key could be turned from the outside to carry its ward toward the right, as viewed in Fig. 2, and thereby leave a clear space from the key hole to the bolt and its ward; but by providing the wing 10, the key cannot be turned backward, and if it is turned oppositely it remains a barrier between the keyhole and the bolt efiectually stopping the passage of a wire to the bolt.
What I claim is:
1. A lock comprising a case having a keyhole, and a bolt formed with a downwardly extended finger, a horizontal elbow projecting from the lower end of said finger below said keyhole, and a guard-plate rising from the said elbow, the plate and finger being spaced to stand at opposite sides of the keyhole when the bolt is in its unlocked posh ing therefrom below the level of the key- Copies of this patent may be obtained for hole, and a Winged plate rising from the extremity of said elbow.
In testimony that I claim the foregoing 10 invention, 1 have hereunto set my hand this 20th day of June, 1917.
DAVID H. PINGREE.
five cents each, by addressing the Commissioner of Patents,
Washington, D. C.--'
US17657617 1917-06-23 1917-06-23 Lock. Expired - Lifetime US1259128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17657617 US1259128A (en) 1917-06-23 1917-06-23 Lock.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17657617 US1259128A (en) 1917-06-23 1917-06-23 Lock.

Publications (1)

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US1259128A true US1259128A (en) 1918-03-12

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US17657617 Expired - Lifetime US1259128A (en) 1917-06-23 1917-06-23 Lock.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3647517A1 (en) * 2018-11-05 2020-05-06 KALE Kilit ve Kalip Sanayi A.S. Lock guard for locks with an enhanced security

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3647517A1 (en) * 2018-11-05 2020-05-06 KALE Kilit ve Kalip Sanayi A.S. Lock guard for locks with an enhanced security

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