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Publication numberUS1309645 A
Publication typeGrant
Publication dateJul 15, 1919
Filing dateOct 1, 1918
Publication numberUS 1309645 A, US 1309645A, US-A-1309645, US1309645 A, US1309645A
InventorsPeter Lopez
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1309645 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




1,309,645 Patented July 15, 1919.





Patented July 15, 1919.

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nvmvmn Pefer Lopez,




Specification of Letters Patent.

Application filed October 1, 1918. Serial No. 256,453.

To all whom it may concern:

Be it known that I, PETER Lornz, a citizen of Cuba, residing in New York, in the county of New York and State of New York, have invented new and useful Improvements in Rotary-Gate Locks, of which the following is a specification.

This invention relates to rotary gates of the turnstile type, the invention being more particularly related to the latching mechanism carried by the gate and adapted to cooperate with devices carried by the radial arms thereof by which automatically to lock the gate in pro-determined closed posit ons.

A principal object of the invention is to provide new and useful improvements 1n latching devices, more particularly in the device known as an Electric door opener for which Letters Patent No. 522,733 were g 'anted July 10, 1894, so that the same may be employed as eflicient means for effecting the latching and unlatching of my rotary gate, which is illustrated and described more fully in my co-pending application filed October 1, 1918, Serial No. 256,452.

Another object of the invention is the provision of a latching mechanism, wherein the casing is provided with two spaced transverse passageways in the path, respectively, of a keeper and of a positioning cam device, both carried by a rotary structure; and wherein a latch is mounted for operation in the passageways in such manner that each time the same is released or disengaged from a keeper to permit movement on the part'of the rotary structure, it will mmediately be repositioned by a CHVHI ClBVICB for engagement with the next succeeding keeper.

Another object of the invention 1s the provision of an improved lock of this cha *acter, which is simple in construction, comparatively inexpensive to manufacture, and which is efficient in operation for the purpose designed.

WVith the foregoing ob ects and others 1n View, the invention resides in the details of construction and in the arrangement and combination of parts hereinafter described, defined in the claims, and illustrated in the accompanying drawings, forming a material part of this specification, andin wh1ch:

Figure 1 is a view in perspective of my improved lock, the front s de plate thereof being omitted, and parts being broken away.

Fig. 2 is a detail view in perspective of thelatoh and of the rock shaft operated thereby, this view also showing the relative position of a cam device as it is about to impinge the latch, as the keeper, here shown in dotted outline, is released by the latch.

Fig. 3 is a similar view, but showing the latch'tilted in position for engagement with the keeper.

Figs. 4 and 5 are views in end elevation, illustrating respectively, the latch as about to be tilted, and as tilted, into elevated position by a cam device.

Fig. 6 is a view in front elevation of the lock.

Fig. 7 is a vertical sectional view through a portion of my rotary gate, showing how the lock is supported in position to cooperate with the keepers and cam devices carried by the projecting arms.

Fig. 8 is a view in end elevation of one of the projecting arms, taken in connection with the gate structure, fractionally shown.

Fig. 9 is a view in perspective of the upper portion of the rotary gate, showing the lock, the projecting arms, and the devices carried by the arms for cooperating with the lock.

Fig. 10 is a cross section, taken on the line 10-10 of Fig. 7.

\Vith more particular reference to the accompanying drawings, the numeral denotes the rectangular lock casing, preferably made at one end with a downwardly offset bottom portion 16 in order that the pair of electrically connected magnets 17 may be installed therein in vertical position with suflicient space above the poles thereof for the proper operation of the armature 18, pivoted on a stud 19, which projects from the rear side of the casin Beyond the stud 19 the armature is formed with a detent end 20; and to the underneath side of the armature there is attached anon-magnetic spring finger 21, which bears upon the poles of the magnet in such manner as to normally hold the armature tilted to engage the detent end 20 in front of the projection 22, carried by the rock shaft 23. \Vhe'n the magnets are energized, the armature is drawn toward the poles thereof, which movement elevates the detent end 20, releasing the projection 22, so that. the rock shaft may be swung outwardly.

The cone-shaped end 24 of the rock shaft is journaled in a suitable bearing provided in the casing cross piece 25, while the opposite end is pivoted upon the end of a screw 26, which is threaded through the casing Patented July 15, 1919.

end 27. The rock shaft is formed with a longitudinal recess 28, defined in part by the oppositely extending projections 29 and 29. Said rock shaft is also formed with a projection 30, designed to engage the rear casing plate 31, and so to limit its outward turning movement.

The top plate 32 of the casing, spacedly from the end plate 27 is bent downwardly atan angle, .to provide a wall portion 33 confronting the said end 27, and between these confronting walls 33 and 27, the front and rear plates are cut out so as to provide a passageway 34 transversely through the topouter end of the casing. A distance below this passageway, an opening 1s cut through the end 27, and also through the front and rear walls to provide a second passageway 35 transversely through the casing. Connecting the wall 33 and that part of the end wall 27 which lies between the passageways 34 and 35, is a spindle 36. Eccentrically mounted upon this spindle is a latch 37, having formed for the purpose at the opposite endsof its front edge, the ears or shoulders 38 and 39, provided with suitable openings through which the spindle passes. Along its rear side, the latch has an upstanding portion 40, designedto engage the keepers which are carried through the passageway 34. Said latch also has a depending vane or tongue 41 with a rounded end adapted to work in the recess 28. The outer shoulder 38 is enlarged to provide a cam shaped projection 42, which extends into the passageway 35to be there lmpinged by the cam devices which are carried through said passageway. The latch thus formed and mounted tends normally to drop downwardly around its axis, and is of such weight that its downward movement turns the rock shaft 23 outwardly, swinging the projection 22, when released, beyond the detent end 20.

To limit the dropping movement of the latch 37 so that the portion 40 will not fall below the bottom of the passageway 34, and so that the cam shaped projection 42 Wlll be properly positioned in passageway 35, an upstanding projection 43 is formed integral with the rock shaft 23 in such position as to engage upon a shoulder 44 formed upon the latch.

As the latch is swung into elevated position with the'portion 40 projecting into the passageway 34, the vane 41 turns the rock shaft so that the projection 22, which has a beveled end, snaps behind the detent end 20, thereby locking the rock shaft against movement, and, in consequence, securing the latch inelevated position so that a keeper, upon passing through the passageway 34, will engage the portion 40. When, because of the energization of the magnets, the detent end 20 is raised above the projection 22, the latch 37 due to its weight and eccentric mounting,

drops down, turning the rock shaft until the projection 30 engages the rear side of the casing, in which position the projection 22 is turned clear of the detent end 20. When the latch is in this position, the cam shaped projection 42 lies in the passageway 35 in position to be impinged by a cam 53 moving therein, so as, toeifect the elevation of the latch again, and through that elevation to swing the rock shaft rearwardly, snapping the projection 22 behind the detent 20.

The lock is thus provided with a casing having the passageways 34 and 35, and with the parts, as above described, working in said passageways, in order that the lock may be employed as simple and eflicient means'for controlling the movement of my coin operated rotary gate structure, which is more particularly described in my copending application, above identified. This rotary gate structure includes a pedestal 45, supporting a tubular shaft 46, upon which, immediately above the pedestal, is fixedly carried a bracket 47, to which the lock is secured in horizontal position, as best illusother; the said arms being adapted to pass 1 immediately over the lock and having enlarged ends which pass just outside the outer end wall 27 of the lock. To each of these arms is attached a keeper or plate 51 in position to be carried through, the pasi sageway 34, to engage the portion 40 of the latch, when the latter. is in elevated position. Upon each enlarged end 50 is riveted an angular arm 52, which carries a cam'device 53 iii-position to be carried through the 1 passageway 35, so as to impinge the camlike projection 41 and elevate the latch. It is important to note that the cam device 53 is carried behind the keeper 51 for a distance sufficient to enable the said cam device to impinge the projection 42 as soon as the keeper, through the dropping of the latch, has cleared the portion 40. Thus in Fig. 2, the keeper 51 is illustrated as having just been releasedfrom the portion 40, as the cam device 53 is about to impinge the projection 42.

Each time, therefore, as an arm 49 moves awayfrom the lock, the cam device 53 elevates the latch in position to engage the keeper carried by the next succeeding arm, by which arrangement this rotary structure is locked against movement each timev an arm passes over the look. In order todisengage the latch from a keeper 51 and so permit the rotary structure to be moved a quarter turn, the magnets 17 must be energized.

Energization of the magnets is accomplished by the dropping of a coin through the opening 54 provided in the casing 55, carried on the top end of the shaft 46, the falling coin serving as a medium for closing an electric circuit through the magnets, all in a manner illustrated and described in detail in my co-pending application, above identified.

Having thus described my invention, what I claim is 1. In a lock, a casing provided with two transverse openings therethrough one above the other, a latch provided with a keeper engaging portion and a cam engaging portion, said latch being eccentrically pivoted between said openings to normally swing under its own weight with the keeper engaging portion withdrawn from service pos1- tion in the upper opening and the cam engaging portion advanced into service position in the lower opening, means exterior of the lock adapted to enter said lower opening and to impinge said cam-engaging portion so as to swing the latch into elevated position with the keeper engaging portion in service position in its opening, means associated with and actuable by the latch for limiting the movement thereof in either direction, and means for automatically locking said limiting means when the latch is moved into elevated position.

2. In a lock, a casing provided with two transverse openings therethrough one above the other, a latch provided with a keeper engaging portion and a cam engaging portion and also provided w1th a depending vane, said latch being eccentrically pivoted between said openings to normally swing into lowered position under its own weight so as to withdraw the keeper engaging portion from service position in the upper opening and to advance the cam engaging portion into service position in the lower opening, said cam engaging portion when impinged serving as the medium for elevating the latch with the keeper engaging portion in service position in its opening, a rock shailt provided with a recess receptive of the end of said vane, and through the medium of which said rock shaft is turned accordingly as said latch is elevated or lowered, means for controlling the movement of said rock shaft in either direction so as to limit the movements of the latch, and means for locking the rock shaft against movement when the latch is moved into elevated position.

3. In mechanism for locking a rotary structure provided with radially projecting arms, each having depending therefrom a keeper device and a cam device, the cam device being positioned in a plane below and to the rear of said keeper device, a casing located in position for said arms to pass closely thereover, said casing being provided with two passages therethrough one above the other, adapted the upper opening to permit the travel therethrough of the keeper device and the lower opening to permit the travel therethrough of the cam de vice, a latch provided with a keeper engaging portion and a cam engaging portion, said latch being eccentrically pivoted between said openings to normally swing under its own weight into lowered position so that the keeper engaging portion is withdrawn from service position from the upper opening and the cam engaging portion is advanced into service position in the lower opening, each of said cam devices upon impinging the cam engaging portion serving as a medium to move the lock into elevated po sition with the keeper engaging portion advanced into the path of the keeper of the next succeeding arm, and means for automatically locking the latch when it is swung into elevated position.

In testimony whereof I have signed my name to this specification.


Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5088779 *Aug 27, 1990Feb 18, 1992Harcor Security Seals Pty LimitedDoor latch release mechanism
US6824176 *Dec 20, 2001Nov 30, 2004Meritor Light Vehicle Systems (Uk) LimitedLatch arrangement
U.S. Classification292/198, 292/201
Cooperative ClassificationE05B85/24