US248551A - Joseph p - Google Patents

Description

(ModeL) J. P. BAUMGARTNER. REVERSIBLE LATCH. No. 248,551. Patented Oct. 18,1881.

'l VJTNESSES: [N V EN T OR,

ATTOI'e/VE IQX UNITED STATES PATENT OFFI E.

JOSEPH P. BAUMGARTNER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND DAVID A. CRAIG, OF SAME PLACE.

REVERSIBLE LATCH.

SPECIFICATION forming part of Letters Patent No. 248,551, dated October 18, 1881.

Application filed July 29,1881. tModel.)

To all whom it may concern Be it known that I, J OSEPH P. BAUMGART- NEE, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Knob- Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accom- IO panyingdrawings,which form partofthisspecification, in which- Figure l is a side elevation of a lock-case, partly in section, having my improvements applied thereto. l ig. 2 is a like view, showing the lock-bolt withdrawn into the case; and

Figs. 3 and 4 are perspective details.

Myinvention hasrelation toknob-locks, both rim and mortise, and has for its object to produce a cheap, simply constructed, and easily 2o operated lock of this class having a reversible knob-bolt.

My invention consists in the special and peculiar construction of the reversible knob-bolt, as hereinafter fully described and claimed, and

in the combination,with theknob-bolt, of a onearmed follower and two-armed-lever of novel construction, as hereinafter fully set forth.

Referring to the accompanying drawings, A shows the lock-case, and B the knolo-bolt,which o latter is adapted to slide in and out between studs a a, arising from one side of the case A. Said bolt has at its inner end two lugs, b b, one on either side, and near its opposite end two other side lugs, 11 b At points between these 5 lugs, which project from the edges ofthe bolt, are two other projections, b If, on the broad sides of said bolt.

0 is the follower, which has a single arm, 0, which comes in contact with one of the lugs b b.

D is a lever, having two arms, at d, which has its fulcrum on a case-boss, a. The arm 01 impinges against one of the projections b b while the other arm, cl, is in contact with the arm 0 of the follower O. The contiguous-sides of the arm 0 of the follower O, and of the arm 5 d of lever D, are rounded, as are the arm 61 and lugs b If, so that when moving upon or against each other a rolling action takes place, thereby reducing friction and rendering the look easy in action.

E is a retracting-spring, fastened at one end in the case A, as shown at c 0, its other end connecting with or hearing against one of the lugs b 11 Bymcansoftheforegoing-descrlbed construc- 5 tion theknob-boltB will be withdrawn or moved back within the lock, whether the knob be turned either to the right or to the left. If turned to the left,the follower arm cis pressed against the lug b and forces back the bolt directly. If turned to the right, said arm 0 moves against the arm (1 of the lever D, andthus causes the other arm, d, of said lever to slide the bolt back by pushing on the projection 11 In both cases the retracting-spring throws the 6 bolt forward afterit has been moved backward.

To reverse the bolt so as to get its beveled side toward either side of the case, said bolt is merely turned overin the case. The lugs b b if being duplicates of thelugs b b If, the lat- 7o ter occupy the places and perform the functions that the former did with reference to the follower-arm, lever-arm, and spring.

WVhat I claim as my invention is as follows:

The combination, with case A, of knob-bolt 5 B, having end lugs, b I), and studs 1) b on opposite sides, follower 0, having rounded arm 0, and lever D, with rounded arms (1 61, substantially as shown and described.

In testimony that I claim the foregoing 1 have hereunto set my hand this 28th day of July, 1881.

JOSEPH P. BAUMGARTNER.

Witnesses:

E. D. MGLOUGHLIN, M. D. OoNNoLLY.

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