US732431A - Lock. - Google Patents

Description

PATENTED JUNE so, 1903. L. NEISGHL.

LOCK. APPLICATION FILED JARZBO. 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

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10 IODEL.

L; N'EISGHL. LOOK.

PATENTED JUNE 30, 1903..

APPLIOATIOR FILED JAN. 30, 1903.

'2 SHEETS-SHEET 2 UNITED STATES Patented June 30, 1903.

PATENT OFFICE.-

LOCK.

SPECIFICATION forming part of Letters Patent No. 732,431, dated June 30, 1903. Application filed January 30,1903- Serial No- 14L154. (llo model.)

To all whom it mat concern.-

Be it known that LLOUIs NEISCHL, residing at Milwaukee, in the county of Milwaukee and State'of Wisconsin, have invented a new and useful Improvement in Locks, of which the followingis a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention relates to a lock that is adapted for use on a door, and especially on an outer door of a house and where a night-latch or spring-bolt is desirable in connection with a key-actuated bolt. 7

The invention has for its chief object the providing ofnovelmeans whereby when the key-actuated bolt is thrown forward, so as to lock the door, the lock will be so set that the key can be turned or rotated freely in the lock in the manner ordinarily done for throwing the bolt back or forward and the bolt will not be withdrawn or moved, there being other devices in the lock that must be put into work' by a special manipulation of the key fitting and adapted to operate these special devices before the key will throw the. bolt back and other novel means related incidentally to this chief object in the lock of the character de scribed.

The invention consists of the lock, its parts and combinations of parts, as herein described and claimed, or the equivalents thereof.

My improvements may be embodiedin a lock adapted to be placed on the surface of a door and secured thereto or in a lock adapted to be secured to a door by being let into the door in a pocket or recess therefor in the edge of the door in a manner commonly employed or by any equivalent method; but as locks of this general character are most frequently affixed to a door by being let into its edge I have in the drawings shown my improvements in connection with a lock having a case of a 'form adapted to be let into the edge of the door; buttheinvention is not to be confined tolocks wit-h cases of this particular form nor,indeed, exclusively to looks adapted to be applied to doors, because locks having my invention may be applied to drawers or any construction where two members are brought together and are to be secured when in abutting position.

v ing positions.

In the drawings, Figure 1 illustrates one surface of my improved lock in a form adapted to be'employed with-a door by being let into the edge thereof, that side of the lock being shown that is advisably toward the outside of the door. Fig.2 shows my im proved lock with that side of the case removed that is shown in Fig. 1. 'Fig. 3 is a view of my improved lock, showing the same parts thereof as are illustrated'in Fig. 2, but

with the key-actuated bolt thrown forward and other parts being exhibited in correspond- Fig. 4 shows a fragment of the case of the lock with a set of tumblers that are related to. the key-actuated bolt. Fig. 5 is a transverse section of the lock on line 5 5 of Fig. 1. Fig. 6 is a section of the lock on line 6 6 of Fig. 5. Fig. 7 is a detail of the key-actuated bolt.- v Fig. 8 is a detail of the spring-actuated bolt. I

In the drawings, 1 represents the-box-like case for the movable parts of the lock, which case is provided with a removable side 2 and a lengthened and widened edge face-plate 3, through which face-plate the key-actuated bolt 4 and the spring-actuated or latch bolt 5 are adapted to move endwise to such extent as is common in looks of this character. Ways 6 are provided on the case, in which an inner portion of the bolt is guided and permitted to move endwise, the bolt being held 'toward the front yieldingly by a spring 7,

adapted to hold it forward yieldingly in the position shown in Figs. 1, 2, and 3. A bellcrank lever 8, pivoted on the case, is provided with a pin 9, taking into a slot in the bolt 5, whereby by the swinging of the lever the bol 5 can be moved rearwardly, so as to be wholly within the lock-case and out of engagement with any exterior holding means. A knobspindle 10 extends through and is mounted revolubly in the lock-case and is provided with a cam-finger 11, formed and adapted to engage the complementary formed and arranged free arm-of the bell-crank'lever 8 in the manner shown in Figs. 2 and 3,'whereby by the rocking of the, knob-spindle the free arm of the bell-crank .lever will be raised and the bolt 5 willbe withdrawn inwardly from the position shown in Fig. 3. This is a means to be used commonly for withdrawing the spring-bolt 5. Latch-holes 12 12 are provided through the sides of the case adapted for the insertion therethrough of thumb latches, which may, if preferred, be employed in the lock in connection with the bell-crank 8 instead of the knob-spindle 10. and 'cam 11.

The key-bolt 4 is held in position and to a forward-and-back movementby a stud 13, fixed on the side of the case 1 and projectinginto a slot 14 in the flattened and somewhat expanded inner portion or shank of the bolt 4. This expanded and flattened shank 15 of the bolt 4 is not only guided in its movements forward and back by the stud 13, but is also held in place movably at a distance from the side of the case by a shoulder 16, forminga part of the stud 13. A set of springheld tumblers 17, pivoted on a pin 18, fixed on the wall of the case 1, are related in their work to this bolt 4, being each provided with a longitudinal slot 19 and laterally-extending recesses 20 21 at the respective ends of the slot, and a stu 22, projecting rigidly from the bolt 4, enters and travels in these slots and recesses. These tumblers 17 are similar in construction to tumblers in common use and have a well-known operation, the walls of the recesses 21 being adapted to engage the stud 22 and hold the bolt in its withdrawn position, (shown in Fig. 2,) and the walls of the recesses 20 are adapted to engage the same stud and hold the bolt in its forward position (shown in Fig. 3) until the tumblers are lifted by the wards 23 on the outer edge of the web of a key 24, when, being severally properly lifted by the key, the tumblers are placed in such position that the slots 19 in the several tumblers are in alinement and permit the bolt 4 to slide forward and back, the stud 22 moving in the slots.

The shank 15 of the bolt 4 is provided with a shoulder 25, adapted to be engaged by the web of a key inserted into the case through the keyhole 26 when the bolt is in the position shown in Fig. 2 and by the rotation of the key to be thereby thrown forward into the position shown in Fig. 3. The bolt is not provided with any corresponding fixed shoul-.

der for withdrawing it from the position shown in Fig. 3 into the position shown in Fig. 2; but the bolt is provided with a dog 27, pivoted on the shank of the bolt, the dog being provided with a shoulder 28, that takes the position shown in Fig. 2, in which position it is adapted to serve as a shoulder to be engaged by the web of the key to throw the bolt back from the position shown in Fig. 3. The dog 27 is held normally in the position shown in Fig. 2 by gravity and by the action of a spring 29, mounted on the case. The spring 29 bears against a pin 30, fixed on the upper portion of the dog. A springdog 31, mounted on the case, is adapted to take into a notch therefor in the dog 27 when the dogis in the position shown in Fig. 2, and when the bolt 4 is being thrown out this dog engages the lug 32 on the dog and compels the uptilting of the dog in the initial movement of the bolt outwardly until the pin contacts a stud 33, fixed on the case, and in the further movement of the bolt outwardly the engagement of the pin 30 on the stud 33 prevents the forward movement of that portion of the dog with the bolt, and thereby uplifts the dog until the pin 30 escapes up- I of the spring 29, whereby by this contact the dog and the bolt 4 are carried forwardly slightly to their proper position, if such position has not been already secured by the normal action of the parts. When the dog 27 is thrown down into the position shown in Fig. 2, the nose 34 engages a stop 35 on the boltshank 15 and prevents the further downthrow of the dog.

When the bolt 4 is thrown out, as shown in Fig. 3, and the door thereby locked, and the bolt-dog 27 is in the position shown in Fig. 3, the key belonging to the lock or any other key that will pass into the keyhole can be rotated unlimitedly without throwing back the bolt 4. For holding this bolt-dog 27 in the position shown in Fig. 3, in which the shoulder 28 is out of the path of the key, I provide a latch-dog, advisably a plurality of these dogs, which I denominate tumbler-dogs 36, which consist of a plurality of dogs pivoted on the side 2 of the case and provided with catches 37, adapted to engage under the shoulder 38 on the dog 27 when it is in the position shown in Fig. 3 and hold it releasably in this position. The lower or rear edges of these catches 37 are beveled downwardly, being adapted to be engaged wedgingly by the upper edge of the shoulder 38, causing the tumbler-dogs to be pushed outwardly as the dog 27 is forced upwardly by the forward movement of the bolt 4 in the act of throwing it out. The tu mbler-dogs are held yieldingly to their work by the springs 39, fixed on the case side 2. I advisably inclose the dogs 36 and the springs39 by low walls 40 at the sides and top of these dogs and springs. A guard 41, consisting of a bar fixed on these side walls 40 and extending from one wall to the other over the dogs, serves to prevent the undue tilting of the dogs outwardly. Wards 42, projecting from the several dogs 36, are adapted to be engaged by corresponding wards 43 on the outer and inner edges of the web of the key 24, whereby the tumbler-dogs can be moved suitably and in alinement out of engagement with the shoulder 38 on the dog 27 by a movement of the key when in engagement with them toward the right, as shown in Fig. 6. In other words, the key is pulled toward its handle when it is inserted in the a look from the side of the door that is adjacent to the lock-case side 2, and the key is pushed against these tumbler-dogs when the the web of the key.

key is inserted from the other side, there being corresponding wards 43 on both edges of It will be understood that while the key may be rotated unlimitedly in the lock-case when the bolt is thrown,

' 36, as illustrated in Fig. 6, .thedog 27 will at once he released and under the action of the spring 29 will be-moved to the position shown in Fig. 2, so that by turning the key again it will engage the shoulder 28 and will throw the bolt 4 rearwardly in the position shown in Fig. 2, unlocking the door so far as this bolt is concerned.

Besides the construction just described by means of which the key is made capable of throwing the bolt 4 forward and back I pro vide other means by which when the key has thrown the bolt 4 back, thereby unlocking the door, the same key can be employed to throw the latch-bolt 5 back, thus completely unfastening the door. For this purpose a latchbolt lever 44 is pivoted medially by stud-pin 45 on the shank 15 of the bolt4, and the upper end of this lever is engaged by a stud -pin 46, fixed on the bolt 5, which pin enters a longitudinal slot therefor in the lever. The lower arm 47 of this lever is so disposed that when the bolt 4 is in the posi tion shown in Fig. 2 this arm 47 is in the path of the web of the key in the keyhole 26, so that when the key is rotated over rearwardly to withdraw the bolt 4 the key can be further rotated in the same direction,'and it will contact with the arm 47, which arm being pushed toward the left, as shown in Fig. 2, will throw the latch-bolt 5 inwardly or rearwardly, withdrawing it, so as to unfasten the door. By these means the key is adapted not only to unlock the bolt 4, but also to throw back the latch 5. The bolt 5 is also advisably provided with 2. lug 48, adapted to be engaged by the cam-finger 11, so that the latch-bolt 5 will be withdrawn not only by the rotation of the spindle 10, so as to actuate the bell-crank 8, but also by rotating the spindle in the other direction, whereby the cam-finger 11 comes into direct contact with the lug 48 and pushes the bolt'back- Wardly.

What I claim as my invention is 1. In a look, a key-actuated bolt, a case supporting and guiding the bolt for reciprocable travel, a fixed shoulder on the bolt to engage a key to throw the bolt out, a dog mounted on the bolt adapted to engage the key for throwing the bolt in, and means engaging the dog releasably adapted to shift the dog out of the path of the key by thethrowing of the bolt out.

2. In a look, a key-actuated bolt, a case supporting and guiding the bolt for reciprocable travel, a fixed shoulder on the bolt to engage a key to throw the bolt out, a dog mounted on the bolt adapted to engage the key for throwing the bolt in, means engaging the dog releasably adapted to shift the dog out of the path-of the key by the throwing of the bolt out, and other means adapted to engage the dog and hold it releasably out of the path of the key.

'3. In alock, a reciprocable bolt having a fixed shoulder to engage a key in one direction, a dog pivoted 0n the bolt arranged to engage the key in the other direction, a spring holding the dog to its work yieldingly,a spring-- dog adapted to engage the bolt-dog 'releasably at a distance radially from its pivot and compel the shifting of the dog on themovement of the bolt outwardly, and means adapted to engage the dog and hold it in its shifted position releasably.

'4. In a look, a reciprocable bolt having a fixed shoulder to engage a key in one direction, a dog pivoted on the bolt arranged to engage the key in the other direction, a spring holdingthe dog toits workyieldingly,aspringdog adapted to engage the bolt-dog releasably at a distance radially from its pivot and compel the shifting of the dog on the movement of the bolt outwardly, a relatively fixed stud adapted to be engaged wedgingly by a pin on the dog and to thereby complete the shift-ing of the dog, and means adapted to engage the dog and hold it in its shifted position releasably.

5. In a look, a lock-case, a reciprocable bolt, a dog pivoted on the bolt adapted to be engaged by a key for throwing the bolt rear- .Wardly, means for automatically shifting the dog out of the path of the key by a single forward throw of the bolt, a set of tumbler-dogs pivoted on the case to engage said bolt-dog, and springs holding the tumbler-dogs to their work yieldingly.

6. In a look, a lock -case, a reciprocable bolt, a dog pivoted on the bolt adapted to be engaged bya key for throwing the bolt rearwardly, means for automatically shifting the dog out of the path of the key by the forward movement of the bolt, a set of tumbler-dogs pivoted on the case and having catches adapted to engage the bolt-dog releasably, said catches being beveled rearwardly to engage the dog Wedgingly reversely and to be lifted thereby when the bolt is being shifted from its initial position, and springs holding the tumblerdogs to their work.

7. In combination, a lock-case provided with a keyhole, a reciprocable bolt, a dog pivoted on the bolt adapted to be engaged by a key for throwing the bolt rearwardly, means for automatically shifting the dog out of the path of the key by a single movement of the bolt forwardly, spring-actuated tumbler-dogs posed as to be engaged by complementary wards on the edge or edges of the web of the key when the key is moved endwise and to be thereby lifted, concurrently out of engagement with the bolt-dog.

8. In combination, a lock-ease provided with a keyhole, a reciprocable bolt, a. dog pivoted on the bolt adapted to be engaged by .a key for throwing the bolt rearwardly, means for automatically shifting the dog out of the path of the key by the movement of the bolt forwardly, spring actuated tumbler dogs adapted to engage the bolt-dog in its shifted position and hold it outof the path of the key, wards on the tumblers formed and disposed to be engaged by complementary wards LOUIS NEISOHL.

Witnesses:

O. T. BENEDICT, ANNA F. SCHMIDTBAUER.

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