US468807A - Magnetic lock - Google Patents

Description

(Ndmoael.) l

A. E. KINTNER.

MAGNETIC LOCK.

No. 468,807.V Patented Feb. 16, 1892.

UNITED STATES PATENT OFFICE.

ALOUIN E. IIINTNER, OF PAINESVILLE, OHIO.

MAGNETIC LOCK.

SPECIFICATION forming part of Letters Patent No. 468,840?, dated February 16, 1892.

Application filed September 3, 1891. Serial No. 404,628. (No model.)

' To aZZ whom t may concern:

Be it known that I, ALCUIN E. KINTNER, a citizen ofthe United States, residing at Painesville, in the county of Lake and State of Ohio, have invented a certain new and Improved llllagnetic Lock, of which the following is a specification.

The nature of my invention relates to a lock having a series of iron or steel tumblers therein, which are attracted by a magnetic key, thereby admitting the easy opening of the lock in the manner hereinafter shown and explained.

That the invention may be fully seen and understood by others, reference will be had to the following specification and drawings, and for the purpose of showing the nature of the said invention one form of a lock is shown and described.

Figure l is a vertical longitudinal section of a padlock, showing myinvention in connection therewith. Fig. 2'is a horizontal cross-section on line fr x, Fig. l. Fig. 3 is a cross-section on line and Figs. 4 and 5 are cross-sections on lines rc2 002 and x3 :123, respectively. Fig. (3 illustrates the lock closed. Fig. 7 illustrates the lock open. Figs. 8 and 9 are enlarged views of the magnetic key used in connection with the lock and hereinafter fully explained.

In the drawings annexed hereunto one form of a padlock is shown, the following description referring to said lock. I do not, however, confine myself to padlocks alone, as it will be readily seen from the specication that the principal which I claim can be applied to any lock-that is to say, different locks for different purposes, such as mortise-locks, iipat interior spring-locks, the., can be constructed enr bodying my improvement.

In the drawings, A denotes the body of the lock, and B the clasp or bolt, the arms a and a thereof entering into the two chambers b and b of the body A. The arms Ct and a are notched, as shown at c and c', Figs. l, 2, and 7. (Best shown in Fig. 7.)

Pivoted to the body of the lock, on the interior thereof, is the cross-arm O. The ends of said cross-arm being held in the notches c c of the clasp by the spring CZ, Fig. 2. A casing D is rigidly itted in the body of the lock from the lower side, as shown in Figs. 1 3, 4, and 5, or it may be an integral part of the body of the lock. The casing D has a vportion This cylinder, as well as casing D, should be constructed of non-magnetic metal.

In the construction of the cylinder E lies the important features of the invention. Said cylinder is constructed as follows: A pin f, Figs. l and 3, is rigidly attached thereto and extends through the cut-away portion of the casing D. The chamber g is in open connection with the key-hole 7L. A pin i is rigidly secured across said chamber,near the inner terminal thereof, near the outer terminal of the shell. Beyond the outer extremity of the casing D is arranged a series of steel or iron tumblers 7c k 7s Zt, (these tumblers being preferably of cast-iron, as that will not retain the 1nagnetism,) which work .'ooselyin said shell E, the outer terminals of the tumblers Zi; resting on the outer edge of the casing D.

I will now describe the practical working of the lock. A key the shank m of which is magnetized and similar in form to the one shown in Figs. 8 and 9 is slotted or sawed, as shown in Figs. 8 and 9 at Z. The magnetism of the shank of the key upon said key entering the chamber g will attract the tumblers lo, drawing them from their contact with the casing D and permitting the cylinder E to be forced inward against the resiliency of the spring c, forcing the pin f alongside of the cross-bar O. The slot Z of the key will engage the` pin e' and by a partial revolution of the key, the pinfbeing in contact with the side of the cross-arm O, will release said cross-arm from the notches c and cwhen, owing to the resiliency of the spiral spring a, Fig. l, the arm a of the clasp or bolt B will be raised out of the chamber ZJ and the lock is open, as shown in Fig. 7. In closing the lock it is simply necessary to force the clasp into the chambers b and b', and when the cross-arm O registers with the notches c and c the resiliency of the spring (Z, Fig. 2, will force the said cross-arm into the notches and retain it therein until released by means of thek key.

The key shown in Figs. 8 and 9 is provided with a covering o and when not in use is ICO The casing of said key is simply for convenience in carrying said key in the pocket with other keys or magnetic articles.

Having described my invention, what I claim, and desire to secure by Letters Patent= 1. In amagnetic lock, the combination of a series of tumblers arranged loosely within a cylinder, said cylinder Within a casing D, havin gan opening therein, and a pivotal crossarm C, operating conjointly with a pin f, attached to the cylinder and in contact with the cross-arm C, actuated by a grooved inagnetic key, substantially in the manner as an for the purpose set forth.

2. In a magnetic lock, a cross-arm pivoted zo Within a cylinder, the terminals of said crossarm susceptible of engagement and disengagement with the notches c and c', in combination With the pin jtumblers 7o kk 7o, and casing D, in conjoint operation with a slotted magnetic key and engaging pin i, arranged in the manner as and substantially for the purpose set forth. A

3. In a magnetic look, a series of non-magnetized tumblers arranged Within a cylinder around the key-opening, in combination With the pin f, cross-arm C, engaging pin 1'., and the slotted magnetic key whereby the bolt is readily disengaged and the lock opened, substantially in the manner set forth.

` In testimony whereof I affix my signature in presence of two Witnesses. I

ALCUIN E. KINTNER. fitnessesz SEXTUs SLOAN, IRWIN-S. CHILDS.

Images