US597634A - Keyhole-guard - Google Patents

Description

(No Model.) Y

H. GHRISTENSON.

KEYHOLE GUARD.

5 4. Patented Jan. 18., 1898.

WITNESSES INVENTOR Z: M Home UNITED STATES EEicE.

PATENT KEYHOLE-GUARD.

SPECIFICATION forming part of Letters Patent No. 597,634, dated January 18, 1898.

Application filed January 23, 1897.

To all whom it may concern:

Be it known. that I, HANS OHRIsTENSON, a citizen of the United States, residing at Crystal Falls, in the county of Iron and State of Michigan have invented certain new and useful Improvements in Keyhole-Guards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in door-locks, the object being to provide an improved keyholeguard and key-guide connection therefor which will prevent access of dirt into the keyhole and also serve as a guide to render it easy to find the keyhole in the dark.

To this end my invention consists in the novel constructions and combinations hereinafter more fully described, and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a perspective view of the keyhole-plate, showing the dust-pr0of case and keyhole-guarding mechanism connected therewith. Fig. 2 is a cross-section view thereof, showing the device applied to a portion of a door. Fig. 8 is a View of the keyhole-plate. Fig. t is a front elevation view of the (lust-proof case.

Referring to the accompanying drawings, the letter A designates a plate of metal or other suitable material adapted to be applied, as usual, by screws 11 to the exterior side of the door B and provided with a keyhole-slot c therein arranged in line with an opening (1 in the door leading to the lock on the interior side thereof.

My improvement consists in attaching a dust-proof case E to the said keyhole-plate and providing said case with means whereby access may be had to place the key in the keyhole, while preventing access of dust and dirt thereto. The said dust-proof case is provided with tangs e e, passing through openings f in serial No. 620,307- (No model.)

the keyhole-plate and clenched on the inner side thereof, and whereby the said case is secured to said plate. The dust-proof case is provided at the front with an opening 9 in line with the keyhole-plate, and a spring- My invention provides a simple and effective construction of keyhole guard and guide which is cheap to manufacture and effectually prevents the entrance of dust and dirt through the keyhole.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In keyhole-guards, the combination with a door formed with a receiving-opening, of a keyhole-plate fitted in a mortise on the interior side of the door and formed with a keyhole-slot, a dust-proof case inserted in said door-slot and provided with tan gs entering openings in said plate and clenched on the 0pposite side thereof, said case having an opening at the front thereof exposed at the outer side of the door, a door in the case adapted to close said opening and hinged upon a pintle passing through eyes formed respectively on said case and door, and a spring normally pressing the door to hold it closed, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

HANS CHRISTENSON.

lVitnesses:

A. L. FLEVVELLING, JOHN FISHER.

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