US1157929A - Manifold-valve lock for automobiles. - Google Patents

Description

J. H. DUGAN & M. N. SMITH. MANIFOLD VALVE LOOK FOR AUTOMOBILES.

APPLICATION FILED DEC. 23. l9l4. 1,157,929. Patented Oct. 26, 1915.

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J I (9 J 14%| T q 3 30+ if? a? WITNEIEEEE INVENTEIRE rfafinlifluyan J. H. DUGAN & M. N. SMITH. MANIFOLD VALVE LOOK FOR AUTOMOBILES.

APPLICATION FILED DEC. 23. 1914.

Patented Oct. 26, 1915.

2 SHEUS-SHEET 2. Flgu 3| 9 INVENTEJ E Jo nfi ayan Mltan M timid 'provements UNITED STATES PATENT OFFICE.

JOHN H. DUGAN AND MILTON N. SMITH, OI AKRON, OHIO, ASSIGNORS TO THE AKRON MOTOR LOOK GO., OFAKRON, OHIO, A CORPORATION.

MANIFOLD-VALVE LOOK FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Oct. 26, 1915.

To all whom it may concern:

Be it known that we, JOHN H. DUGAN and MILTON N. SMITH, citizens of the United States, residin at Akron, in the county of Summit and tate of Ohio, have invented certain new and useful Improvements in Manifold-Valve Looks for Automobiles, of' which the following is a specification.

This invention relates to manifold valve locks for automobiles.

One object of the invention, is in a ready, practical and positive manner, so to control the passage of the explosive mixture from the carbureter to the manifold of an internal combustion engine as, that unauthorized use of a machine can positively be prevented during the absence of the owner and any attempt to gain control of the manifold valve as by rupturing or breaking certain parts of the controller mechanism, will only result in causing the explosive mixture to be vitiated by the admixture of air to such an extent as to be rendered practically nonexplosive.

A further object is in a novel manner to control the operation of the sparking means from the manifoldvalve controlling mechanism, whereby the two will be simultaneously rendered active or inactive from a single point of operation.

A further object is so to construct and arrange the various parts .of the valve and. spark controlling mechanisms, as to avoid the necessity of any extended change in the structural arrangement of-a machine already in use for their adoption, thus to render it possible to equip any machine with the imat but a slight expense.

With the above and other objects in view as .will appear as the nature of the lnvention is better understood, the same consists, generally stated, in providing 1n the connection between the carbureter and manifold a valve, and in further providing a lock that co-acts with a bolt, the bolt being operatively connected with the valve. The arran ement of the parts is such that when the b0 t is in locked position, passage of the explosive mixture from the carbureter to the manifold will practically be cut off, and further the sparking mechanism will be broken. As a matter of further and specific improvement, itis designed that the lock for holding the bolt in locked position shall be of a permu tation type, so that it will be practically impossible for any one in a short time to manipulate the combination and thus release the bolt to permit free passage of the explosive mixture to the manifold.

Further and more specific details of construction will be hereinafter fully described and claimed.

In the accompanying drawings forming a part of this specification, and in which like characters of reference indicate correspond ing parts z-Figure 1 is a view in side elevation, partly in section, with the hood raised. Fig. is a top plan view, partly in section, showing parts of the engine and the controlling means for the manifold valve. Fig. 3 is an enlarged detail longitudinal sectional view of a portion of the valve controlling means. Fig. 4 is a front elevation exhibiting the face plate that carries the permutation lock and the bolt for locking the manifold valve in active or inactive position, the section being taken on the line 3-3, Fig. 5. Fig. 5 is a view of the interior of the casing or cylinder containing the valve controlling mechanism, with the outer cap or closure removed. Fig. 6 is a detail view, partly in section, of a portion of the means for controlling the valve that closes or opens passage between the carbureter and the manifold. Fig. 7 is a longitudinal sectional view taken through the lower portion of Fig. 6

but viewed at right angles thereto and on the line 7-7 thereof. Fig. 8 is a detail view,

partly in section, of a slightly modified form.

of manifold valve.

Referring to the drawings, 1 designates generally an ordinary internal combustion engine, which may employ any desired number of cylinders, 2 the manifold, and 3 the carbureter, the manifold being provided, as usual, with branches 4 and 5, of which the former lead to the front cylinders and the latter to therear cylinders. These parts may be of well-known construction, and therefore need no further description.

Secured to the dash-board 6 is a cylinder or casing 7 comprising a body and two heads 8 and 9, these heads being preferably secured to the cylinder by a threaded connection. The head 8 is secured to a circular late 10 arranged at the front of the dashboard by carriage bolts 11 having preferably rounded heads, the shanks of the bolts near the heads being square to prevent turning, as shown in Fig. 4.

The cap 9 is held firmly against any tendency to work loose, as from jars or vibrations incident to the passage of the machine over road-ways by a screw 12 which passes through the flange of the cap and into the wall of the cylinder, as clearly shown in Figs. 1, 2 and 3. This cylinder or barrel contains the locking mechanism which controls the operation of the manifold valve, and also the sparking mechanism. The locking mechanism embodies a bolt 13 that projects through alined orifices in the plate 10, dash-board 6, and head 8, and engages at its inner end in a socket 1% formed in a boss 15 carried by the inner wall of the cap 9, the socket being preferably tapered to correspond with the tapered inner end of the bolt in order to insure a positive engagement between the parts. The object of thus seating the inner end of the bolt within the socket ll is to render it impossible to detach the cap 9, when the bolt is in locked position, even if the screw 12 he removed.

The bolt is provided in its upper side with a notch or seat 16 that is designed to be engaged by the latch 17 carried by a lock casing 18 which is firmly secured to the inner face of the cap 8. Projecting from the lock casing 18 and extending through the cap 8, dash-board 6 and plate 10, and some distance beyond the latter, is a barrel 19, in which is arranged the shank of the operating knob 20 of a permutation lock of any desired character, and as such instrumentalities are well-known, detailed illustration of any particular form of lock is deemed unnecessary. \Vhen the valve of the manifold is in closed position, the bolt will occupy the position shown in Fig. 1, with the latch 17 seated in the notch 16, so that retraction of the bolt, without first freeing the lock, will be impossible.

Carried by the rear end of the bolt 13 is an eye 21, with which connects one end of a coiled spring 22, theother end of which is firmly secured to the lock casing 18. Also secured to the eye is one end of a wire cable 23, the other end of which is secured to the outerend of a crank arm 24 carried by the like end of the spindle 25 of a alve, cut-ofi' or shutter 26, the latter being provided with a second spindle 27 that works within a seat formed in the wall of an opening 28 formed in a plate 29, the spindle 25 being also projected through an oppositely alined orifice in the plate. This plate is disposed between the flanges 30 and 31 of the manifold and carbureter respectively, and is held firmly assembled therewith by bolts 32 that pass through all three of the parts. Proecting from one side of the plate 29 is a block or lug 34, the outer side of which has secured to it a plate 35. This plate serves to cover a socket or recess 36 1n which is disposed the crank 24, and connected with the crank in any suitable manner is a spring 37, the function of which is to cause the valve or shutter 26 automatically to close the opening or passageway 28 when the bolt 13 has been forced against the tension of the spring 22 to locked position. The lug or block has projecting from it, and formed preferably integral therewith, a tubular extension 38 in which is secured, in any preferred manner, one end of a pipe 39, the other end of which projects through the wall of the cap 9, and is provided with a flange 40 that operates to prevent the unlawful disconnection of the pipe from the cap. Disposed within the pipe 39 is a smaller pipe 11 in which is arranged the wire cable 23, as clearly shown in Fig. 3. The space 42 between the two pipes is sealed at its inner end by a closure 43, so that no air can pass between the two pipes, but within the tubular extension 38 is provided a channel 44 (Fig. 7 that communicates directly with the manifold and with the space 42, the object of this arrangement being that in the event the pipes 39 and 41 should be fractured or separated in an attempt to gain unlawful control of the machine, atmospheric air would pass through the channel 44 and mix with the explosive mixture and render the same practically worthless. In order to control the rotation of the crank 24, thus to cause it properly to open or close the passageway 28, stop pins 45 are employed, as shown in Fig. 7, with which the crank will contact at the limit of its movements, and thus insure correct operation of the shutter. The pipe 39 is preferably flexible, as flexible tubing.

As a means for controlling the sparking apparatus, there is combined with the bolt 13 a contact 46 which is designed to engage with a contact 47 secured to the inner wall of the cylinder 7. These contacts are in the primary circuit, the contact 47 being in the nature of a spring, as shown in Fig. 5, which will insure positive contact. The wires from the two contacts lead through insulators 48 (Fig. 5) and lead to the motor and batteries in the usual manner.

\Vhcn the locking mechanism is in the position shown in Fig. 3, the valve or shutter is open or in the position shown in Fig. 6, so that free passage of the explosive fluid from the carburetor to the manifold will take place, the two contacts 46 and 47 being in touch. Now, should the owner desire to leave the machine, he will grasp the knob 49 of the bolt and force the same inward against the tension of the spring 22, and the spring 37 will exert a turning movement upon the spindle 25 ofthe shutter and cause it to revolve with the inward movement or slack that occurs in the cable or cord 23. As soon as the notch 16 of the bolt comes under the latch 17, the bolt will automatically be passage-way 44 and enter the manifold, and.

by admixture with the explosive fluid, render the latter inoperative or practically so.

Instead of employing the form of shutter described, that shown in Fig. 8 may be enrployed which consists of a disk 50 that may be disposed within the manifold, and to this will be connected one end of the cord or cable 23. The only difference between the two valves will be that one is in the nature of a flap valve and the other of a gate valve. To cause the valve 50 automatically to close when the bolt is locked, a coiled spring 51 is employed which surrounds the cord'and bears at one end. against the valve and at its other end against. the inner wall of a coupling 52, by which the valve casing is combined with the carbureter.

It will be seen from the foregoing description that although the means herein described are simple in character, that they will be thoroughly efficient for the purposes designed, and will co-act in the presentation of a practical and durable form of manifold valve locking mechanism.

What we claim as new is 1. The combination-with a manifold valve, of -means operable from the front of an automobile" for controlling the valve, looking mechanism co-acting with the valvecontrolling means for holding thevalve in closed position, and means for admitting atmospheric air to the manifold in the event of breakage of the valve-controlling means. 2. The combination with a manifold valve, and means for locking the same in closed position, of means for admitting atmospheric air beyond the point of mixture in the event of breakage of the locking. mechanism.

3. The combination with the of an automobile, of a casing closedat each end, a lock carried by one end of the casing and projecting through the dash-board, a spring-drawn bolt slidably-mounted within the casing and arranged to be engaged by the look, a plate interposed between the carbureter and manifold of the engine, a head carried by the plate, a pipe connecting with the head and with the casing, a second pipe housed within the first-named pipe, means for sealing the space between the two pipes at one end thereof, and a conduit connecting the space between the two pipes and the manifold.

4. The, combination with the dash-board dash-board 'ders, connectingmeans between the valve of an automobile, of a casing having its ends closed and secured to the dash-board, a bolt slidably-arranged within the casing and projecting beyond the dash-board, a permutation lock secured to one end of the casing and projecting beyond the dashboard and arranged to engage with the lock, a retracting spring connecting the bolt and the look, a plate interposed between thecarbureter and manifold of the engine, a valve arranged in the plate, pipes connecting the plate and the casing, and a flexible connection between the bolt and the valve.

5. The combination with the dash-board of an automobile, of a casing having its ends closed. and secured to the dash-board, a bolt slidably-arranged within the casing and projecting beyond the dash-board, a permutation lock secured'to one end of the casing and projecting beyond the dash-board and arranged to engage with the lock, a retracting spring connecting the bolt and the lock, a plate interposed between the carbureter and manifold of the engine, a valve arranged in the plate, pipes connecting the plate and the casing, a flexible connection between the bolt and the valve, and a spring co-acting with the valve and operating to close the valve when the bolt is moved to locked position. v v

6.'The combination with the manifold and carbureter of an internal combustion engine, of a plate secured between the parts and provided with an opening, a valve arranged within the opening, a crank connected to one end of the valve, a crank carried by a projecting portion of the valve,'a casing secured to the dash-board of the automobile, a spring-retracted bolt'slidably arranged within the casing, locking means coacting with the bolt, a pipe connecting the casing and the plate, a flexible connection between the bolt and the crank, and a spring co-acting with the valve and operating to cause the same to open when the locking mechanism is released and to close the valve when the bolt is locked against movement.

7. In combination with the dash-board of an automobile,-a casing carried thereby,'a permutation lock within the casing," a spring retracted bolt within the casing and projecting through the dash-board adapted to be engaged by said look, a controlling valve between the carbureter and engine cylinand bolt, and a cover for said connecting means.

8. In combination with the dash-board of an automobile, a casing carried thereby, a lock arranged within thecasing and rojecting through the dash-board, a springretracted bolt slid'ably mounted within the casing and adapted to be engaged by said lock to prevent movement thereof, a plate interposed between'the carbureter and Cyl- 130 inders of the engine, a valve arranged in the late, and a flexible connection between the bolt and valve.

9. The combination with the dash-board of an automobile, of a casing secured thereto and having a removable outer end wall, a valve arranged between the carbureter and cylinders of the engine, a spring-retracted sliding bolt within the casing, a connecting cord between the bolt and valve, means for holding the bolt forward against the tension of the spring, and means carried by the removable end wall adapted to receive the end of the bolt to prevent rotary movement of the same.

10. The combination with the dash-board of an automobile, of a casing carried thereby, a spring-drawn slidin bolt within the casing, a valve for contro ling the feeding of fuel to the engine, a flexible connection between the bolt and valve, electric circuit make and break devices carried by the bolt JOHN H. DUGAN. MILTON N. SMITH.

Witnesses:

L. B. STAHL, S. D. FUL'IR.

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