US230866A

US230866A - Frederick egge

Info

Publication number: US230866A
Authority: US
Publication date: 1880-08-10
Anticipated expiration: 1897-08-10

Description

F. EGGrE.- Piano Lock.

No. 280,866. Patented Aug.10,188o.

Ma Y ,y

@Y ATTORNEY N-PETERS, PHOTO-LITHOGRAPHER. WASHINGTON. D.C.

\ UNITED STATES PATENT OFFICE.

FREDERICK EGGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO SMITH 85 EGGE MANUFACTURING COMPANY, OF SAME PLACE.

PIANO-LOCK.

SPECIFICATION forming part of Letters Patent No. 230,866, dated August 10, 1880.

Application filed November 21, 1879.

To all whom 'it may concern:

Be it known that I, FREDERICK EGGE, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Locks, (Case F5) and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part ot' this specitication.

My invention relates to that class ot locks which are designed for useupon pianos and organs; and it has for its object to provide an economical and practical means of avoiding` the usual rattling which occurs in the locks I5 now used; and with these ends in view my invention consists ot' a piano-lock having, combined with the usual bolt and spring-bolt-operating device, an independent anti-rattler formed in one of the cheeks ot' the lock-case, 2o at its upper edge, said tongue being formed by cutting away a portion of the metal, as will be hereinafter set forth.

In the drawings, Figure l is a plan view of a lock embodying my invention; Fig. 2, a section at the line x of Fig. 1; Fig. 3, a plan view with the cheek-plate removed, exposing the interior ofthe lock, the dotted lilies illustratin g the movement of the bolt.

Similar letters denote like parts in the sev- 3o eral gures.

A represents the cheek-plates, secured to the frame in the usual manner and inclosing the bolt and bolt-operating mechanism.

B is a tongue formed in-the extreme upper edge of one of the cheek-plates by cutting away the metal in the manner shown and turning the end in slightly to form a spring.

D is a stump extending from the key cylinder or hub E, and so constructed and arranged with reference to the bolt and a spriiig, F, that 4o in its sweep the bolt C will be extended and moved laterally in the position shown in dotted lines at Fig. 3.

The tongue B, being arranged and located, as shown, near the upper edge ot the cheekplate A, serres as a spring to hold the bolt in contact with the side of the bolt-opening in the face-plate ot' the lock, and at the same time permits its double motion.

The spring F holds the key-hub and stump 5o D in contact with the bolt C, and prevents rattling at such points ot' contact.

I am aware that it 1s not new, broadly, to forni a springtongue in the casing otl sliding bolts.

I am also aware that it is not new to provide lock-cases with independent spring devices at other points ot' the bolt for various purposes, and do not wish to be understood as laying claim thereto; but

What I do claim as new, and desire to secure by Letters Patent, is-

In a piano-lock, the combination, with the bolt C and bolt-operating mechanism, consisting of the hub E, stump D, and spring F, ot' 6; the cheek-plate cut away at its extreme upper edge, forming a tongue, B, which, while it will permit a forward and sidewise Inovement ot' the bolt, shall protect its forward end against rattling, substantially as set forth.

Witness my hand and seal this 17th day of November, A. D. 1879.

FREDERICK EGGE.

In presence of- SAML. RooKwELL, F. W. SMITH.