US2123525A - Locking mechanism - Google Patents

Description

July 12, 1938. BALL 2,123,525

LOCKING MECHANISM 2 Original Filed Feb. 4, 1931 3 Sheets-Sheet 1 is l as I N VEN TOR. Ea. Z fdwam fliaii A TTORNEYd- July 12, 1938. E. D. DALL LOCKING MECHANISM 'Original Filed Feb. 4', 193i 3 Sheets-Sheet 2 INVENTOR. fci'war'cl 1117a A TTORNEYS July 12, 1938. E. D. DALL LOCKING MECHMIIISM Original Filed Feb. 4, 1931 3 She'ets-Sheec 5 INVENTOR. cFdZqarc/fl, fla BY A TTORNEY5 Patented July 12, 1938 UNITED STATES 2,123,525 LOCKING MECHANISM Edward D.

Dall, Cleveland, Ohio, assignor to Walter F. Wright, Shaker Heights, Ohio Application February 4, 1931, Serial No. 513,297 Renewed December 13, 1932 26 Claims.

This invention relates to locking mechanism and has particular reference to a mechanism for simultaneously locking and/or unlocking a plurality of doors, and the like, by the operation of a single locking means. More specifically my invention relatesto an apparatus for simultaneously mechanically locking and/or unlocking all of the doors of an automobile, or like vehicle, by the simple manipulation of a single means associated with only one of such doors. It is among the objects of my invention to provide an apparatus which shall be capable of accomplishing all of the above named desirable results. Other objects of my invention will appear as the description proceeds. To the accomplishment of the foregoing and related ends, said invention,

then, consists of the means hereinafter fully de-.

scribed and particularly pointed out in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings:

Fig. 1 is a side elevational view of two laterally adjacent doors having associated therewith the apparatus comprising my invention; Fig. 2 is a a schematic diagram showing how the apparatus comprising my invention may be employed in association with a vehicle body, such as an automobile body, for simultaneously locking and unlocking all of the doors thereof; Fig. 3 is a fragmentary elevational view, partially in section of one form of the apparatus illustrated in Fig. 1;

Fig. 4 is an elevational view of a portion of the apparatus illustrated in Fig. 3; Fig. 5 is a fragmentary side elevational view of an alternative form of lock construction; Fig. 6 is a transverse sectional view of the apparatus illustrated in Fig. 5, taken on a plane substantially indicated by the line 6- 6; Fig. '7 is a perspective view of a portion of the apparatus illustrated in Fig. 5; Figs. 8 and 9 are perspective views of complementary elements of the apparatus illustrated in the previous figures; and Fig. 10 is a perspective view of a common form of handle which may be utilized in connection with certain forms of locks as herein illustrated.

Referring more specifically to the drawings and more especially to Fig. 1, the apparatus comprising my invention is here shown associated with doors such as I and 2 which may be adjacent doors on the same side of a vehicle body, such as an automobile body, such doors being'provided with hinges not shown, which enables such doors to be swung about vertical axes which substantially coincide with the lines 3 and 4. The apparatus comprising my invention presently to be explained is designed to be incorporated in one of the doors such as 2 which will preferably be the front right hand door of the vehicle body, so that, as such door is either locked or unlocked, the mechanism comprising my invention will eiiect a like locking or unlocking of all of the other doors of the vehicle. -In Fig. 2 is illustrated diagrammatically the manner in which the several doors may be interconnected, i. e., the locking mechanism thereof interconnected, so as to enable the apparatus presently to be described to accomplish the simultaneous actuation of all of the locks in the vehicle body.

The lock which is incorporated in the master door, or the door which is locked and through which all of the other doors are locked, is most clearly illustrated in Figs. 3 and 4. Having reference therefore to these figures, it will be noted that the form of apparatus herein illustrated consists of the usual supporting plate 5 on which the locking apparatus is mounted in the manner to be described. The lock has the usual latch bolt member 6 which has a projecting portion 1 adapted to enter an aperture provided therefor in the door jamb so that the bolt when in such aperture will hold the door in closed position. The bolt 6 is maintained in the position illustrated in Figs. 3 and 4, i. e. with the portion 1 thereof projecting laterally from the lock under the influence of a coil spring such as 8. which may be mounted and supported by a suitable-bracket, such as 9, carried by the plate 5.

Actuation of the bolt 6 so that the terminal portion I thereof may either be permitted to enter the aperture provided'therefor in the jamb ofv the door or to retract the same therefrom is eflected by a rotatably mounted roll-back ele-- ment I0 which is provided with a projection ll engaging a projection l2 on the bolt 6. The element i0 has a rectangular aperture i8 formed therein to receive a similarly formed shaft of the actuating handle it for the lock. The form of lock illustrated in these figures is the type in which the bolt 6 actuated by the handle I4 is employed for the dual purpose oi maintaining the door in the closed position even though unlocked, and also to maintain the door closed when locked, the locking taking place by means which, upon the turning 01' the key, and subsequent rotation of the handle in a particular manner arrests the rotation of the roll-back in one direction which consequently prevents a retraction of the bolt 6.

Thelocking and actuating handle .for the door has a substantially cylindrical portion l5 in which is operatively mounted a transversely movable dog It, the movement of such dog being effected by a rotation of the key in the handle. This form of handle construction is well known to those familiar with the art, and since the same forms no part of my invention will, therefore, not be more fully illustrated or described. Suffice it to say that the rotation of the key in the handle of the door will move the dog |6 relatively transversely of the tubular member l5 for the purpose hereinafter more fully explained.

The cylindrical member l5, 1. e., the shank of the-handle |4, has a laterally projecting member l1 associated therewith which has a terminal l8 underlying a guide member if! and a rod 20 which is movably supported in such guide member. It should be noted that the member I1 is a substantially flat plate having a shape such as is most clearly illustrated in Fig. 3, and provided with projections such as I'I' on one face thereof. The member I1 is free to rotate on the cylindrical extension of the shaft or handle l5 until the bar or member I6 is moved transversely of the shaft l5 into engagement with the projections such as IT on the member When the key, illustrated in Fig. 10, is rotated in the handle to an unlocking position the bar l6 will be moved downwardly until its upper end lies within the periphery of the shaft IS. The form of construction of the guide I9 and the movable element 20 associated therewith is more clearly illustrated in Figs. 8 and 9. The guide l9 consists of a channel-shaped shell provided with a slot 2| and likewise has its flanges 22 and 22a cut away for a portion of its length, so that when the guide is placed against the auxiliary plate 23, a space will be left intermediately of such guide and said plate to permit the extension therebetween of the terminal l8 of the element H. The movable member 20 is preferably solid and substantially rectangular in form and is likewise provided with a transversely extending slot 24 which, upon proper relative positioning of the guide l9 and themember 20 will register with the slot 2| formed in'such guide member. The movable element 20 is also provided with a recessed portion 25 on one face which permits the passage between the body of such member 20 and the face of the plate 23 of the terminal l8 of the member H. The movable element 20 is terminally secured by means of a pin 26 to the arm 21 of a bell crank 28 which is pivotally supported at 29 and which has an oppositely extending arm 30. The arm 30, as most clearly illustrated in Figs. 3 and 1, has a link 3| secured thereto which has a bell crank 32 associated therewith, to which is movably secured a rod 33 for the purpose hereinafter more fully explained. The rod 33 passes through an aperture 34 provided therefor in the frame of the door, and has associated therewith a compression spring 35 which is positioned intermediately of the frame of such door through which the rod passes, and a collar 36 secured to the rod 33. The action of the compression spring 35 is to maintain a counter-clockwise bias (Fig. 3) to the bell crank 28 for the purpose hereinafter more fully explained.

The auxiliary plate 23 carries a second guide member 31 which slidably supports a keeper 38 which is provided with a laterally extending terminal 38. The auxiliary plate 23 has an abutment 40 associated therewith which secures and supports a spring 4|, which spring contacts with the laterally extending projection 33 of the keeper 38, and maintains the terminal 42 of the keeper 38 in intimate contact with the face 43 of the movable member 2|! by projecting through the slot 2| in the guide |9 until such movable member is brought into proper position, whereupon the terminal portion 42 of the keeper 33 will enter the transversely extending slot 24 of the movable member 2|I.- The inner face of the auxiliary plate 23 carries a pin 44 on which is pivotally mounted a-dog member 43. The dog member 45, at one end, is provided with a hook 46 which is adapted to engage 'a projection 41 formed integrally with and extending radially from the rotatably supported rollback member ID. The other end of the-dog member 45 is provided with a laterally projecting portion 46a adapted to be maintained in contact with the leg of the bell-crank 28, under the influence of a tension spring 41a which, at its one end, is secured to a pin 48 preferably secured to the projection 46a, and at its other end may be secured by any suitablemeans to its support provided either in the body .of the lock, or on the door with which such lock is associated.

The operation of the apparatus illustrated in Figs. 3 and 4 may be briefly described as follows. The arrangement of the parts, as illustrated in Fig. 3, shows such parts occupying the position which they will occupy when the door is locked, i. e. the hook 46 of the dog member 45 is in engagement with the projection 41, so that the handle l4 and its associated shaft ||i may not be rotated in a clockwise direction to effect a withdrawal of the terminal 1 of the bolt 6 from the aperture receiving the same in the door jamb. In order to unlock the apparatus illustrated in these figures. the key will be inserted in the handle of the door in the usual manner and, upon a rotation of such key, the member B will be moved transversely of the shaft IS in a downward direction, thereby depressing the keeper 38, withdrawing the terminal 42 thereof from the transversely extending slot 24 in the movable member 20, thereby permitting the compression spring through its associated links to move the bell crank member 28 in a counter-clockwise direction as the apparatus is viewed in Fig. 3. Counter-clockwise movement of'the bell crank 28 will cause the arm 39 thereof to depress the projection 46:; of the dog member 45 and thereby likewise effect a counter-clockwise rotation of its dog member, which willvfree the hook 4B and its associated projection 41, thereby permitting a rotation of the handle l4 and its associated shaft l5, and

consequently a withdrawal of the latch bolt upon.

rotation of such handle.

After the door has been unlocked in the above described manner, the handle I 4 and its assoelated apparatus may be operated for any number of times to open and close the door of the car without any interference of such operation by the locking mechanism. However, when the car is to be locked, the key in the door handle will be turned so that the member I6 is moved transversely upwardly of the shaft l5, thereby enabling the spring 4| to move the terminal 42 of the keeper 38 up into contact with the face of the member 20 to the right. of the slot 24. Assuming now that the doors are to be locked, i. e., the parts moved into the position illustrated in Fig. 3, the

key most clearly illustrated in Fig. 10 will first be rotated to move the member l8, i. e.. the upper end thereof, out of the shaft 5 so that it may engage the projection I1 in order that when the shaft I5 is rotated in a clockwise direction the plate will be rotated along therewith. The handle of the door will then be rotated in a clockwise direction as viewed in Fig. 3, which rotation will effect a rotation of the member ll and its associated terminal I8 by means of the member l8 abutting against a projection i'l carried by the member ll. The rotation of the handle M in a clockwise direction as described, will therefore move the terminal l8 to the right which will carry the movable member 28 along therewith until the keeper 38, more specifically the terminal 42 thereof. will project into the slot 24. The clockwise rotation of the handle it in the manner described has been permitted by the hook 48 by virtue of such hook being out of engagement with the projection ll due to the depression of the left end of the latch member 48 by the arm of the bell crank 28. However after the movable member 28 has moved to the .right as most clearly viewed in Fig. 3, until the keeper 38 has dropped into the slot 28, then the movable member 20 will be retained in the position illustrated in Fig. 3, and the arm 88 will be maintained in the elevated position. so that the hook 48 will ride upon the outer periphery of the rotatable member I 8. As the rotatable member I8 is moved in a counter-clockwise direction by a counter clockwise rotation of the handle it to bring such handle to the vertical position; then the hook48 will ride over the projection 41 and engage the complementary face thereon and prevent a clockwise rotation of the handle M or its associated mechanism. From the above description it is believed that the operation of this form of construction for the master lock will be well understood to not only lock the door with which it is associated, but also to effect the proper movement of the link 3| associated therewith to cause locking of the other doors of the vehicle.

The movement of the link 8| which is in accordance with the movement oi. the arm 38 of the bell crank 28 will effect longitudinal movement of the rod 83. The rod 83 terminates preferably at approximately the line 58 and is in abutting relationship with a rod 5| movably supported in an aperture provided therefor in the jamb of the door. The rod 5| is secured to a bell crank 52 which has a flexible wire 53 associated therewith which wire, or like flexible element 53, passes through a conduit 54 underlying the sills of the doors. The opposite end of the flexible member 53 is secured to a bell crank 55 which is carried by a bracket 58 supported by the jamb for the door I. The bell crank 55 has a short rod 51 associated therewith which is movably supported in an aperture provided therefor in the jamb for the door and which terminates preferably on the line indicated at 8. The short rod 51 is similar to the rod 5| described in connection with the door jamb for the door 2, and the door I likewise has a rod 58 supported therein and arranged similarly to the rod 38 previously described. The rod 58 has a tension spring 58 and acollar 88 associated therewith. The inner end of the rod 58 is pivotally connected to a bell crank 8| and a link 82 connects such bell crank with a pivotally supported dog 58. The dog 83 may, upon clockwise rotation, resulting from a similar rotation of bell crank 8|, move into engagement with the roll-- ments just described in connection with the right side of the car, such elements will be given corresponding reference characters. Sumce it to say that a flexible element 88 is provided which will connect-in a suitable manner the bell cranks 52 and 82' on opposite sides of the body, so that, upon movement of the element 88 forward out of door 2 in the manner described, all of the elements associated therewith will be moved synchronously for the purposes described. That is to say, rods 88 are moved inwardly on the two left side doors, causing elements 88 to dog their associated rollbacks and lock the doors against actuation by their outside handles.

.An alternative form of construction for the I master lock is illustrated in Figs. 5, 6 and 7. In

this form of construction the plate 81 movably supports a somewhat different form of bolt 88 which is provided with the usual projection 88 adapted to enter the socket provided therefor in the door jamb adjacent such lock. The bolt 88 ating member H for the purpose hereinafter more fully explained. The handle-engaging member 12 has a radial projection 18 associated therewith which is most clearly illustrated in Fig. 5 and which is similar in its construction and function to the member I! of the previously described iorm of construction. The member 18 has a terminal 11 which underlies a guide l8 and a movable member 28' which are similar in construction and operation to the members 8 and 28, most clearly illustrated in Figs. 8 and 9. The auxiliary plate 18 carries a pin 19 on which is pivotally mounted a link 88 movably secured at one end to the movable member 28' and at its other end to a link 3| which is similar to and compares with the link 8| of the previously described construction.

Auxiliary plate 18 of the lock likewise carries a guide 8| which has associated therewith and i which slidably supports a latch member 82, which It will be noted that rotation by a dog or follower, which looks such handle against, relative movement with respect to the door or look upon rotation of the key within the handle. The arrangement of the elements illustrated in Fig. 5 is that relationship which they bear to each other when the apparatus is in the locked position. In order to unlock the door with which the master lock is associated the handle thereof is unlocked in the conventional manner and, further, to unlock the other doors of the vehicle body, the handle and accordingly the element 12" associated with a terminal thereof, is moved in a clockwise direction as viewed in Fig. 5, this-clockwise rotation being made possible by the pin 14 moving in the slot 15, so that clockwise rotation of the element '13 maybe had without effecting a rotation of the member I I. Clockwise rotation of the member 12 will similarly rotate the terminal portion 11 until the same strikes the terminal of the projection 83 of the latch member 82, so that such latch memher is moved to the left, thereby withdrawing the projection M from the slot such as 24 in the movable member 20', thereby permitting the spring such as 35 in the previously described form of construction to effect a counter-clockwise rotation of the link 80, thereby unlocking the remote doors on the vehicle. Further clockwise rotation of the handle and its associated means 12 will cause the pin 14 to move against the end of the groove 15, so that the element II will be carried along with the element 12 in its clockwise rotation, thereby moving the bolt 68 to the left, and permitting an opening of the door with which the master lock is associated.

In order to lock all of the doors of the vehicle which has associated therewith the master lock illustrated in Fig. 5, all that is necessary is to rotate the handle in a counter-clockwise or nonlatch-bolt-retraoting direction as viewed in Fig.

' 5 for a distance sufilcient-to permit the terminal II on the member 18 to move the member 20 downwardly sufiiciently, so that the projection 84 may enter and engage the groove similar to groove 24 on the movable member 20. This projection 84 will, therefore, maintain the member 20' in the depressed position, so that the handle may be brought to its normal position and locked, whereupon not only the door with which such master lock is associated, but all the other doors on the vehicle will be securely locked.

It will be noted from the above described forms of construction that by employing a single master lock in one of a plurality of doors associated with a vehicle. body or like structure, an actuation of such lock in the manner described will enable the operator to lock and/or unlock all of the doors on the car. The advantages incidental to the employment of the apparatus comprising my invention are believed to be sufficiently evident to those familiar with the art that a. further enumeration thereof is unnecessary. It

will be noted that the above described form of constructions may be employed in connection with any installation requiring a plurality of doors, or looks, to be actuated upon the actuation of a single lock associated with one of such doors. No illustration of the locks associated with the doors other than the master door has been given inasmuch as such locks may be of any form having locking means which, upon movement of a lever or dog such as 83 illustrated in Fig. 1, will lock such door in the well known manner.

Other modes of applying the principle of my invention may be employed instead of the one door adapted upon actuation to render said re-.

leasing means ineffective to release said holding means. a

2. The combination with an automobile vehicle body having a door hinged thereto, of locking mechanism mounted on said door, and means for actuating a part of said mechanism comprising a member movably supported in a relatively rigid portion of the body adjacent the hinged edge of the door, a separate cooperating member movably supported in the adjacent hinged edge of the door, and means for actuating said first named member.

3. In combination, a vehicle body having a door, latch means adapted when said door is closed to hold it closed, release means for said latch means, means rendering said release means ineffective to release said latch means including a part extending to one of the edges of said door and a part in said body adapted to actuate said first named part, and operating means for said second named part.

4. In combination, a vehicle body having a door, latch means adapted when said door is closed to hold it closed, release means for said latch means, means rendering said release means inefiective to release said latch means including a part extending to one of the edges of said door and a part in said body adapted to actuate said first named part, and operating means for said second named part including a train of operatively connected movable parts extending to a point on said body removed from said door.

5. In combination with a vehicle body having a door, said door having means for holding it closed and means for releasing said holding means, locking means on said door adapted upon actuation to render said releasing means ineffective to release said holding means and a train of operably associated movable parts operatively associated with said locking means extending to a point remote from said door and there provided with an actuator.

6. In a vehicle body having a door, means for holding said door closed and means for releasing said-holding means, said holding means being operable independently of said releasing means, and means including a train of operably associated movable parts controllable from a remote location for rendering said releasing means inefiective to release said holding means.

7. In combination, a door openable from both sides, another door, a controller on said other door, and means for locking the first said door including a train of operably associated movable parts operably associated with said controller and-said locking means to lock the first said door from opening operation from one side without afiecting the opening operation from the other s e.

8. The combination with an automobile vehicle body having a plurality of doors, of a lever movably mounted on said body, means including energy storing meanspositioned on at least one of said doors adapted upon actuation to lock each bolt retracting means.

of said doors against unauthorizedingress, and means operable from said lever for actuating said first named means to thus lock said doors and tovrelease said energy storing means so that the same may unlock the door upon which the same is positioned.

9. The combination with an automobile vehicle body having a plurality of doors, saiddoors provided with latch means by which the same are normally secured in closed position, and means for actuating said latch means, a latch actuating handle movably mounted on'one of said doors, means including energy storing means positioned on atleast one of said doors responsive to movement oi said handle and effective upon such movement to render said latchactuating means ineilfective to retract the latch associated therewith, and key controlled means associated with said handle, said energy storing means eiiective upon movement of said key controlled means to restore to effectiveness said latch actuating means. i

10. The combination with an automobile vehicle body having a plurality of doors of an actuator movably mounted for locking said doors, means adapted upon actuation to lock at least one of said doors against unauthorized ingress. said means including energy storing means positioned on a door and energized by locking actua-' tion of said means, said storing means being arranged on release to unlock said door, and means operable from said actuator for actuating said first named means to lock said door and for releasing said energy storing means to unlock said door.

11. The combination with a vehicle body having a plurality of doors, means for holding said doors in closed position, means for releasing said holding means, said releasing means being operable independently of said holding means, means for looking a door, and means on another door responsive to movement of its releasing means independently of its holding means releasing movement to operate said locking means.

12. The combination with a vehicle body having a plurality of doors, at least one of said doors having a latch bolt, retracting means for said latch bolt, said retracting means havingan operation independent of said bolt retracting operation, means for locking another door, and means for operating the said locking means by non-latch-bolt actuating operation of said latch 13. The combination with a vehicle body having a plurality of doors, means for holding said doors in closed position, means for releasing said holding means, said holding means being operable independently of said releasing means, means for locking a door, and means for operating said locking means by operation of said releasing means on another door without movement of said holding means.

14. The combination with an automobile body having a plurality of doors,'-a latch bolt associated with each of said doors, roll-backs associated with said latch bolts, dogging means for said rollbacks, a lever movably mounted on said body, means including a train of mechanical connections from said lever to said dogging means on each of said doors effective upon movement of said lever to dog the roll-backs on said last named doors.

15. The combination with an automobile vehicle. bodyhaving doors arranged on opposite sides thereof, said doors each provided with a latch bolt, a roll-back associated with each such latch bolt, a movable handle on one of said doors for actuating its associated roll-back and latch bolt, and means functionally responsive to movement of said handle for dogging the roll-backs on the remainder of said doors.

16.'The combination with an automobile vehicle body having doors arranged on opposite sides thereof, said doors each provided with a latch bolt and a roll-back associated with each a plurality of doors, means for holding said doors closed, means for locking said doors, a two part roll-back on one of said doors each part operable independently of the other, one part operable to release the door holding means of said one door and the other part operable to lock another door, and operative connections from said last named part to the locking means of said other door.

-18. In combination with a vehicle body having a plurality of doors, each door having means for holding it closed and release means for said holding means, means for rendering said release means for one of said doors ineffective to release its associated holding means and including a part extending to one oi the edges of. said door and a part in said body adapted to actuate said first named part, and operating means ior said second named part including a train of operatively connected movable parts extending to a point on another of said doors.

19. The combination with an automobile vehicle body having two doors each hingedly mounted by -a vertical edge, of mechanism for securing each door, the mechanism on one door comprising an operating member therefor and a movable member operatively connected with said operating member and extending therefrom to a point adjacent a vertical edge of said one door, a movable member operatively connected with the securing mechanism of the other door and extending to a point adjacent a vertical edge of said other door, and motion transmitting mechanism operatively connected with said movable members, whereby movement of said operating member of said one door causes movement of a part of the securing mechanism of said other door.

20. In a vehicle body having a plurality of hinged doors, locking means for one door including a movable part extending to a point adjacent ,the hinged edge thereof and a second part in the body portion adjacent the hinged edge of said one door and adapted to cooperate with said first named part, and actuating means for said second part including a member on another door and means interconnecting said member and said second part.

21. The combination with an automobile vehicle body having two doors hinged thereto, of lock mechanism mounted on each of said doors, and means for actuating a part of the lock mechanism on one door comprising a member movably supported in a relatively rigid portion of the body adjacent the hinged edge of said one door, a cooperating member movably supported in the adjacent hinged edge of said one door, and means operatively connected with the lock mechanism of the other door for actuating said first-named member.

22. In combination with an automobile body,

10 such latch bolt, a movable handle on one of said doors for actuating its associated roll-back and a master-door, bolt means for said master-door, bolt retracting means on said master-door, and means for causing dogging of said bolt retracting means including a movable member in a vertical edge of said door, a remote door, a post at a vertical edge of said remote door, bolt means for said remote door, bolt retracting means on said remote door, and means for causing dogging of said remote door bolt retracting means including a movable part in the vertical edge thereof adjacent said post, and mechanical means including devices within said post operatively associated with the aforesaid master-door member and the aforesaid part whereby the bolt clogging motion of said member operates said part to dog the bolt retracting means on said remote door.

23. The combination with an automobile vehicle body having doors on opposite sides thereof, said doors each provided with a latch bolt and means for actuating said latch bolts, a latch bolt actuating handle associated with said means on one of said doors, and means responsive to movement of said handle for locking the other door against unauthorized ingress.

24. In a vehicle body having doors on opposite sides, the combination of locking means on a door on one side of said body including a train of movable parts extending across the body, and means on a door on the opposite side oi said body cooperating with said movable parts to operate said locking means.

25. The combination with an automobile vehicle body having doors arranged on opposite sides thereof, said doors each provided with latch bolt means by which the doors are normally secured in closed position and means for actuating said latch bolts, a latch bolt actuating handle associated with said last named means on one of said doors, means responsive to movement said handle for rendering the bolt actuating means on another door ineffective to retract the bolt associated therewith, said means including key controlled means adapted to lock the door with which said handle is associated.

26. In a vehicle body having a plurality of doors with at least one of said doors disposed at each side of said body, latch bolt means associated with each of said doors, inside and outside latch bolt control handles for each of said doors, simultaneously operated locking means associated with said doors, interconnecting means between said simultaneously operated locking means and one of said outside latch bolt control handles, said interconnecting means coacting so that all oi said locking means may be controlled simultaneously by said last mentioned outside latch bolt control handle, and lock means associated with said handle to lock-said handle from movement.

EDWARD D. DALL.

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