DE276966C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 276966 CLASS 65 tf. GROUP

SCHNEIDER & CIE in PARIS and LE CREUSOT.

Patented in the German Empire on September 18, 1913.

In the known delay devices for the admission of pressure medium to torpedo motors the main shut-off valve in the compressed air line from the boiler to the motor is in Dependent on a shovel located on the outside of the torpedo or a wing that is folded and opens the main shut-off valve when the water pressure when driving the torpedo in the water ίο has reached a certain size.

This known arrangement has a twofold disadvantage:

1. The effect of water is often not expressed in terms of the energy required; she is often insufficient to maintain the persistence and frictional resistance of the in Question coming machine parts to overcome.

2. The time span in which the motor runs at low speed cannot be in be regulated in a manner that has the necessary accuracy and is based on the Can set the type of ejection tubes to be used.

According to the invention, these disadvantages are eliminated in that the part that the main shut-off valve should open, instead of being dependent on a device set in action by the water, with the motor of the torpedo is connected by an intermediate gear, which is coupled to the engine when the starter lever is turned, after a certain, adjustable number of revolutions of the motor shaft is decoupled again and releases the part causing the shut-off valve to open.

In the embodiment shown in the drawing, it becomes the main shut-off valve opening machine part formed in a known manner by a pressure piece, which is attached to the usual, the stop device of the torpedo machine controlling balance beam is hinged. The connecting gear between the pressure piece and the motor shaft is through a clutch is shown, which is similar in its design to that of the stopping device.

In Fig. 1 of the drawing, one of the previously customary delay devices is shown schematically, in which the main shut-off valve is brought as a function of a wing to be covered by the water. This arrangement shows the usual balance beam B, which is connected to the starter lever L at Z by a link B ¹ . The pressure piece B ^{2 of} the known stop device is hinged to one of the ends of the balance beam. This device, which is shown in detail in FIG. 2, is formed by a releasable coupling C ₁ C ¹ . The coupling piece C ¹ , which is set in rotation by the motor, is under the action of a spring R. The coupling piece C is guided in a suitable manner. When the lever L is turned when the torpedo is ejected, the balance beam B is raised by the tie rod B ¹ , the pressure piece B ² causing the coupling between the parts C and C ¹ and by lifting the parts C, C ¹ compresses the spring R , which then serves as a power source for subsequent movements of the balance beam. The lever L opens at the same time by a cam N.

an auxiliary shut-off valve K ₁ so that, as is known, the engine starts up at low speed. When the balance beam B is raised , a pressure piece I attached to its other end occurs under the stop H connected to the wing while a. Another pressure piece b attached to the balance beam B , which is intended to open the main shut-off valve, into the position ready for opening the valve A.

ίο arrived. If now after the torpedo comes to water, the wing is flipped and the stop H is removed from the push rod /, the balance beam B can swing upwards about its suspension point Z under the action of the spring R of the stop device; the pressure piece b takes part in this oscillation and opens the shut-off valve A. As a result of the use of a wing, this known arrangement shows the disadvantages mentioned above.

According to the invention, the movement of the stop H to release the pressure piece I is not caused by a wing, but made dependent on the number of engine revolutions, so that the time of opening of the main shut-off valve can be precisely determined and is independent of external influences. For this purpose, according to the embodiment shown in the drawing, a controllable gearbox that can be engaged and disengaged can be used, which is similar to the known gearbox of the stop device.
2 and 3 show this embodiment in section and in a view from above.

Except for the devices belonging to the pressure piece I, the device shown in FIG. 2 is the same as in FIG. 1; therefore a repeated description of this device is not necessary.

The pressure piece I is guided in two eyes /, J ^{1 of} the housing A ¹ and is supported by a spring r, one end of which is supported on a ring M of the pressure piece I and with the other against a fixed stop formed by the eye / , constantly pressed down into the position shown in FIG.

The device for locking and releasing the pressure piece I consists of a coupling device which is set in rotation from the motor shaft. This coupling device can be of the same type as that of the stop device C ₁ C ¹ ; it is also shown in this form in the drawing. In the housing E _1, which can consist of one piece with the housing A ¹ , one coupling part F of the coupling F ₁ H is rotatably and immovably mounted. The other coupling part Ii ₁ with a. Along-. bore h is provided, carries a rod h ¹ which is connected at its upper end to a pointer H ¹ ; this pointer can be adjusted over.ein degree arc H ² by a driver H ^a on a ring H ¹ . A spring r ^{1 is} wound around the rod h ¹ , one end of which is attached to the coupling part H _1, the other end of which is attached to the ring H * which is pressed into the disk H ² by a strong spring H ^h. The other coupling part F. has a ring gear on the outside which meshes with a gear F ¹ seated on the shaft G driven by the motor.

The device works in the following way:

If the full pressure medium allowance, i.e. the opening of the valve A _{1 is to be} delayed so that it only takes place after a certain number of revolutions of the motor shaft, the pointer H ^{1 is set} over the graduation of the arc H ² corresponding to this number of revolutions. This has the effect that the bore h in the coupling part H assumes a position relative to the upper end of the pressure piece I corresponding to this setting. '

As soon as the lever L is pushed back when the torpedo is ejected and reaches the position L ¹ (FIG. 2), the balance beam B is raised and the auxiliary inlet valve K is opened by the pressure piece Q moved by the lever JV, so that the torpedo machine starts up slowly. At the same time, the upward movement of the bar B causes the clutch C, C ^{1 to be closed} under tension by the spring R by the pin B ² and the clutch H ₁ F by the pressure piece I. The pressure piece b still remains out of contact with the main shut-off valve A ₁ a.

Since the machine is in motion, the coupling part F rotates under the drive of the gear F ¹ and takes the other coupling part H with it under the tension of the spring r ¹ . When the motor has covered the predetermined number of revolutions, the bore h has set itself exactly opposite the thrust piece I , so that this loses its abutment and enters the bore h , since now the beam B under the action of the spring R around its suspension point Z can swing. As a result, the coupling piece H is no longer pressed against the coupling piece F and is therefore no longer taken along by the latter. The return spring r ^{1 also} facilitates the separation of the two coupling parts H and F. However, it can not turn back part H , since it is prevented from rotating by the rod /. With this vibration of the beam B the pressure member applies to the b A master cut valve ₁ a, so that now the valve A is opened α ₁ and receives the machine Torpedo full pressure. It surrenders

that is, that this lifting is at the end of a number of revolutions that can be adjusted as required of the motor is effected.

The starting lever L is known to be held in position U- by a lock which is triggered by the action of the stop device at the end of the torpedo barrel; as a result, the lever L can move from the position L ¹ to the position L under the action of a return spring, not shown. As a result of this movement of the lever L , the balance beam B lowers and takes the pressure pieces Q, b and / with it into the starting position according to FIG. The two valves K and A, a are closed by their springs, and the coupling piece H with the pointer H ¹ returns to the selected control position under the action of the return spring r ¹ , which was tensioned during the rotation of H.

Claims (2)

Patent Claims: i. Delay device for admitting the pressure medium to the torpedo motors, characterized in that the part (b) which is under the influence of a force and which opens the main shut-off valve (A ) is connected to the motor shaft of the torpedo by a coupling device (/, H, F) , which is engaged when the starter lever (L) is turned and keeps part (b) out of contact with valve (A) holds until after a number of revolutions of the motor shaft that can be set as required, the coupling is released and part (δ) for opening the shut-off valve (A) is released. 2. Delay device according to claim i, wherein the opening of the service valve (A) in a known manner is effected by a pressure piece (b) which is hinged to the usual, the stop device (B ^2, C ₁ C ¹⁾ controlling balance beam (B) and is under the influence of a second pressure piece (J) articulated on the balance beam (B) , characterized in that the pressure piece (J) has a clutch (H ) during the upward movement of the balance beam (B) when the starter lever (L) is turned over , F) engages, of which the part (Z ) adjacent to the pressure piece (J) has a longitudinal bore (A), while the other part (F) is set in rotation by the torpedo motor and takes part (H) with it after the coupling , until after a certain number of revolutions of the motor the bore (A) faces the pressure piece (J), whereupon the latter enter the bore (A) and the balance beam (B) with the pressure piece (b) can perform a further upward movement, at the main shut-off valve (A) is opened by the pressure piece (b) . For this purpose ι sheet of drawings.