US834994A - Lock. - Google Patents

Description

PATENTE!) NOV. 6, 1906.

B. PHBLPS.

LOCK.

APPLIGATIOB PILBQIBB. 1o. 1904.

2 BHEETS-SHEET 1 PATENTED NOV. 6, 1906.

B. PHELPS.

LOCK.

F.PLIOATION FILED 1112.16. 1904.

2 sums-amm 2.

fr: mens urn ca. lusumcran. n cv UNITED STATES PATENT oir-Flon. y

LOCK.

Specification of Letters Patent.

Patented Nov. 6, 1906.

Application filed February 16, 1904. Serial No. 193,832.

To all whom, if my concern,.-

Be it known that I, Brr .v PnELrs, a citizen ol the United States, resina-ig at Seattle, King county, 'ashington, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

My invent-ion relates to locks and latches, and particularly to that type of a loekin which the same bolt performs the locking and latching function. This type of a lock is shown in various patents already granted to niefor example, United States Letters Patent No. 626,340, dated June 6, 1899.

The object of my invention is to provide, particularlyv in this type of mechanism, a simple and effective means for automatically locking the bolt against retraction excepting by the proper operating means.. In sach locks where the`bolt is either freely reciproeating or is pivoted an intruder might, by means of a suitable picking device inserted from the outside between the door and doorcasing, gradually work the bolt back until it is freed from the keeper-plate, in which event the door might be opened. By this invention, however, such an entrance would be absolutelyvv prevented.

It will be obvious that my invention is not limited to locks of the particular type shown.

In the accompanying drawings, Figure 1 is a plan view of mechanism of my improved construction. Fig. 2 is in the main a longitudinal section in the plane of the axis of rotation of the knobs. Fig. 8 is an inside end elevation of the outdoor knob removed. Fig. 4 is a perspective view of a detail of construction. Fig. 5 is a side elevation of another detail of construction. Fig. 6 is a perspective view of another detail of construction. Fig. 7 is a view of a portion of th mechanism in one position, said view being partly in section. Fig. 8 is a similar view showing parts of the mechanism in another position. Fig. 9 is a similar View showing parts of the mechanism in still another position.

In the drawings, 1 is the frame, preferably of one piece and of a construction substantially as shown in my former patent, No. 531,432.

2 3 arc tubular extensions from opposite sides of the frame arranged to rotatably sunort hollow' knob-spindles 4 and 5. The

knob 6,'while the knob-spindle 5 is carried l by the indoor knob 7. I S conventionally illustrates a cylinderi lock mounted to rotate in the outdoor knob 6 and by which the bolt may be retracted in the manner hereinafter described, although said outdoor knob may be locked against rotation.

of the door and constituting an operatiner device for the lockingr mechanism for loc ting the outdoor knob against rotation. This particular mechanism need not be described at length by me, because a detailed description thereof will be found in my former patent, No. 626,341.

1() and 11 are roll-backs. Roll-back 11 is mounted on the inner end of the kno b-shank 5,v while the roll-back 1() is mounted on the inner end of knob-shank 4. A spindle 12 passes through the knob-Shanks 4 and 5 and both roll-backs. This spindle is springpressed to the left as viewed in Fig. 2, and one end of said spindle engages in the hub et the conventaxially-shown cylinder-lock The other end of tle spindle 12 carries a pin 13, which bears against an incline or cam surface 14 on the sleeve 9, as best seen in Fig. 5. From the foregoing it will be seen that by rotating the sleeve 9 the spindle 12 may be moved longitudinally to the right, as shown in Figs. 1 and 2. The roll-back 10 stands in a deep notch at the inner end of the outdoor-knob shank 4, and there is a notch in the frame 1 adjacent thereto, so that when the spindle 12 is shifted to the left by the spring the roll-back 10 will move into the position shown in Figs. 1 and 2 and enter the notch or notches in the stationary frame 1, thus locking said roll-back 10 against rotation by the outdoor knob 6. It should be stated that while the spindle 12 is independently rotatable relatively to both roll-backs 10 and 11 I provide lugs on said spindle 12 on opposite sides of the roll-back 10, so as to cause the said roll-back to move longitudinally with the spindle 12. may move the roll-back 10 into a locked or an unlocked position.

15 is a slide which carries or is connected to the boltI or head 16.

17 is a spring arranged to the rear of the bolt or head 16 and exerting an outward pressure thereto. Incidentally this s ring mob-spindle 4 is carried by the outdoorggnay move the slide 15 to its norma adf im Q 9 is a rotatable sleeve locatedI on the inside u IOO By this means I IIO q,... I '..JIs-i vanced position. (Seen in Figs. 1, 7, and S.) 1When the outdoor knob is unlocked, the bolt may bc retracted by rotating either knob. 'hen the bolt is projected, it engages with a 5 keeper-plate 1S. one function of which is to hold the bolt when the door is closed.

Thus far described the. mechanism does not dill'er in any substantial respect from mechanisms such as shown, described, and

1o claimed in former patents granted to me.

Since, as I have indicated at the outset, in ordinary locks and latches it is possible to insert a thin instrument between the edge of the door and the door-casing, and thereby push the bolt 16 back, so as to free the door and allow it to be opened, I have devised simle and eflective dogging mechanism wherey y this is absolutely prevented.

19 is a tilting frame having a tailpiece 2t) o with an upturned nose 21, arranged to be engaged by a shoulder 22 on the slide 15 when the slide is retracted and for the purpose hereinafter described.

23 is a spring designed to normally tilt the z5 frame 19 in a direction to cause the tailpiece to be elevated. On the opposite side of the frame from the tailpieee 20 is what I shall term a blocking-arm 24 and also what I shall term a cam-arm 3o 26 is a member which corresponds generally to the bolt 16 in shape and method of connect-ion to the frame 1; but in function it diiiers entirely. This member 26 may be termed the controllen as its function is to control the tilting frame 19.

27 is an operating-shoulder formed on a block pivoted to 26 and movable to and fro as the controller moves to and fro. This operating-shoulder is located under the cam- 4o arm 25. When the door to which the mechanism is applied is open, the controller 26 stands in its advanced position, it being normally advanced by means of a. spring 28. IVhen in this position, the shoulder 2T engages with the cam-arm 25 and tilts the frame 19 in opposition to the tendency of the spring 23, raising the blocking-arm 24 so that it will sta-nd out of the backward path of movement of the bolt 16. W'hen, however, the door is '5o closed, the bolt 16 and controller 26 are pushed back by engagement with the striking e 0e of the keeper-plate 1S. The end of the blocking-arm 24 stands so close to the rear of the bolt 16 that only a slight backward movef' 55 ment of said bolt will move it. under the end of the blocking-arm 24 when the latter is elevated. Immediately after this the shoulder 27 will become freed of the cani-arm 25 W'hen the door is shut, the bolt 16 will spring 6o out into the opening in the keeper-plate; but the controller 26 will still be held retracted, because there is no opening in the keeperplate to receive it. The Inoment the bolt advances to its normal position and the rear side olea@ the blocking-arm 24 the frame 19 will tilt under the influence. of spring 23, so that the end of the blocking-arm will stand directly to the rear of the rocking-bolt 16. The. consequence is that so long as the controller is retracted, which necessarily must 7o be the case so long as the door is closed, the dogging-arm 24 will prevent any one from pushing the bolt back by means of a tool 1n serted between the edge of the door and the door-casing. The retraction of the bolt, however, by ither knob or the key-controlled mechanism is not prevented, because the proper action of the mechanism will cause the slide to be retracted, and this retractlon of the slide will cause the shoulder 22 to en- 8o gage with the nose 21 on the tailpiece of the frame 19. This engagement will tilt the frame 19, raising the end of the blocking-arm 24 out of the path of the locking-bolt 16.

The operation just described will best be understood by referring to Figs. 6, 7, 8, and 9. Fig. 6 represents the keeper-plate having an opening to receive the locking-bolt 16 and a flat bearing-surface to stand in front 0f the controller 26. In Fig. 7 the parts are 9o illustrated in their normal position, the bolt and controller being advanced. 1When the door is closed, the parts stand in the position shown in Fig. 8, with the blocking-arm standing to the rear of the locking-bolt 7.6, due to 9 5 the fact that the shoulder 27 has been removed irom'the cam-arm 25, allowing the frame to be tilted under the iniuence of spring 23 to bring the blocking-arm into the aforesaid position. .Then the slide is reroo tracted, the parts will appear in the position indicated in Fig. 9, the frame 1 9 being tilted by the action of the shoulder 22 on the slide, so as to elevate the blocking-arm to permit the bolt to be retracted. This elevating of the m5 blocking-arm 24 occurs at the first part ofthe rearward movement of the slide, so as to remove the blocking-arm from the path of the bolt before it has been retracted to any substantial degree, otherwise the parts of course no would interfere.

It is preferable that the face of the lockingbolt 16 should be slightly fuller than the face of the controller, because this will cause the locking-bolt to be pushed back when it hits the strike-plate slightly in advance of the controller and will insure the said lockingbolt riding under the blocking-arm 'before the frame carrying said blocking-arm is released, so as to allow it to descend. This is 12o one convenient way of preventing interference of the parts when the door is being closed. In Fig. 1 the striking-face of the locking-bolt 16 is shown to be slightly fuller than the striking-face of the controller 26. 12

I have shown and described the preferable form of my invention, which is obviously capable of modification without departing from the spirit and scope of mv invention,

tlievniain purpose of which is to provide auto- 13o matie means for clogging the locking-bolt. against any attempt to push it back by the insertion ot an instmment between the door and the door-casing when said door is closed, but permitting said bolt to be drawn back in the usual manner.

v1. In a mechanism of the character described, a pivoted bolt, a slide for retracting it, a dog, a pivoted controller therefor for bringing the dog into its operative position when the controller is retracted.

2 .I11 a mechanism of the character described, a bolt, a slide therefor, a controller, a logging mechanism comprising a tilting frame having an arm adapted to engage the bolt, a. second arm coacting with said controller, and a third arm coacting with the slide, all whereby rie dog may be set. by the operation of the controller to prevent the incursion of the bolt and released by the operation of the slide in retracting the bolt.

- 3. In a loek and latch mechanism, a bolt, a pair of knobs, operative means of connection between said knobs and said bolt, manuallyoperative means for preventing the retraction of said bolt by one of said knobs, a lock in said knob, a dogging mechanism for said bolt, and means for retracting said (logging mechanism and said bolt by tht operation of said knob-lock.

4. In alock and latch mechanism, the combination of a bolt, knobs for retracting the saine, a dog l'o" the boli., u controlla* for setting said dog when retracted, and keyoperable means accessible tnrough one of said knobs for releasing the dog and retractino,v the bolt.

o'. Y, In a lock and latch mechanism, a bolt, a slide therefor, knobs for manually retraeting the slide and bolt, a controller, a dog set by the retraction of said controller for preventingthe incursion of the bolt, and means for releasing the dog upon the operation of said slide.

6. In a mechanism of the character described, a` bolt, a dog, a pivoted controller movable independently of the bolt but normally holding said d 9g, and ay spring for settingr said dog when said dog is released by the incursion ot' said controller.

7. In a lock and latch mechanism, a bolt, a pair of knobs, operative means of connection between said knobs and said bolt, means for preventing the retraction of said bolt by one of said knobs, kt L controlled means for rotraeting said bo tfin'hen said preventing 'means is in operation, a dog tor said bolt, an operator for setting said dog when retracted, and means of connection between said keycontl'olled means and said dog whereby said dog is adapted to be retracted by the operation of said key-o ierahle means.

8. In a lock and latch mechanism, a bolt., a.

air of knobs, operative means oi' connection ietween said knobs and said bolt, means for roventing the operation of one of said knobs, key-controlled means for retracting said bolt when said knob is prevented from operation, a dog for preventing said bolt being pushed inward, an operator for said dog, and means of connection between said dog and said keyoperable means for retracting said dog when said bolt is retracted by said key-operable means.

9. In a lock and latch mechanism, a bolt, two knobs, a-slide connected to said bolt, roll-backs for said knobs for retraeting said slide, means for dog-ging the operation of one of said knobs, a dog for said bolt, a normally projecting operator for setting said dog when retracted and means whereby the retraction of the slide retraets said dog. y

Signed at New York this 15th day of February, 1904.

BYRON P'nELPs.

.Witnessesz R. C. MITCHELL, i l L. VBEELAND. L,

Images