US968453A - Electrofluid-pressure apparatus. - Google Patents

Description

G. R. DAELLENBAGH.

ELEGTROFLUID PRESSURE APPARATUS.

urmoumu FILED JULY 16, 1909.

96,4538 Patented Aug. 23, 1910.

2 SHEETS-SHEET 1.

C. R. DAELLENBACH.

ELEGTROFLUID PRESSURE APPARATUS.

APPLICATION FILED JULY 16, 1909.

Patented Aug. 23, 1910.

2 SHEETS-SEEIIT 2.

1 Adj/M21}! cAm. a. DAELLENBAGH, or BnAnnocK, PENNSYLVANIA.

ELECTROFLUID-PRESSURE APPARATUS.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed July 16, 1909; Serial No. 508,084.

To all whom it may concern:

Be it knownthat I, CARL R. DAELLEN- BAoH, citizen of the United States, residing at Braddock, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Electrofiu-id-Pressure Apparatus, of which the following is a speclfication.

My invention pertains to electro fluidpressure apparatus; and it contemplates the provision of a sim la and reliable apparatus of the kind state designed more particu- .larly for use in connection with the operation of railways, and adapted for actuating signals, .0 crating whistles or gongs, working thrott e valves or throwing switches or any other devices that are to be moved by a person located at a distance from the same.

The invention also contemplates the rovisionof an apparatus characterize as stated-and constructed in such manner that by a single movement of the controlling element, the fluid under pressure maybe su 'plied to and cut off from the device to e actuated a number of times in succession.

Other objects and advantages of the invention will be fully understood from the following description and claims, when the same are read in connection with the drawings, accompanying and forming part of this specification, in wh1ch:

Figure 1 1s a view, partly in section and partly in elevation of a complete apparatus constructed in accordance with my invention. Fig. 1* is a sectional view showing a fluid-pressure valve designed more particularly for use when the fluid-pressure is to act directly against a whistle or other device to be actuated. Figs. 1 and 1 are cross-sections of the piston valves N and N, respectively. Flg. 2 is a section, on an enlarged scale, taken through the casing of the circuit making and breaking device comprised in my improvements. Fig. 3 is a plan view showing the hand lever of the said circuit making and breaking device or controller.

Referring by letter and numeral to the said drawings, and more particularly to Figs. 1, 2 and 3, thereof: A is a cylinder having a piston B movable therein; the said piston being designed to be connected in any manner consonant with the purpose of my invention to a device to be actuated.

C C are electro-magnets disposed at one side of the cylinder A.

D is a rock-shaft mounted in a bracket arm E on the cylinder A and having an armature F arranged in proper relation to themagnets C, and also having an arm Gr disposed at a rightangle to the said armature, and H is a valve casing, disposed, by

reference, at one end of the cylinder A and ormed integral therewith. The said valve casing is provided at its 0 posite ends with plug-like heads I and 5 and in it are ormed a chamber K and a sub-chamber L;

the said sub-chamber being arranged at the end of the chamber K remote from the head I, and being smaller in diameter than the chamber K in about .the proportion illustrated. It will also be noted by reference to Fig. 1 that the valve casing H is provided with a port a effecting connection between its chamber K and the interior of the cylinder A, an induction port I) communicating with the chamber K and designed to be connected through a pipe 0 with a source of fluid pressure supply, a port d designed to exhaust fluid under pressure from the chamber K, and a conduit or passage 6 communicating with and extending intermediate the supply port I) and the sub-chamber L.

Extending longitudinally through and movable rectilinearly in the casing head I is a valve M, headed at its inner end and suitably connected at its outer end to the arm G, and movable in the casing H is a piston valve N which, as clearly shown in .Fig. 1, comprises a chambered head f, a head 9 and an intermediate reduced portion h, all movable in the chamber K, and an end portion i, of small diameter as compared with the heads 1 and g, and arranged and movable in the sub-chamber L. The valve N is also provided with a longitudinal central passage j which extends from the chamber in the head f to the opposite end of the valve. See in this connection the dotted lines in Fig. 1.

By virtue of the construction thus far described it will be manifest. that when-the parts are in the positions shown in Fig. 1 and an adequate .supply of fluid pressure is maintained in the pipe 0, the parts will be maintained in such positions so long as the valve M is not opened. When, however, the electro-magnets C are energized to attract the armature F thereto, it will be seen that the valve M will be moved inwardly, and that the accumulated pressure in the, chamber K at the left of the valve N will pass out through the enin scenes in the head I and the recesses m in v ve whereupon the fluid pressure acting through the passage 1;, which is larger than the valve passage 7', will press the valve N toward the left to enable the valve head 9 to close the port at, and the valve head to overrun the ort b and efi'ect communication between sai port 6 and the port a, so as to permit fluid under ressure to pass directly from the source or supply through the chaber K and the port a, and by acting against the piston B to move the said piston in one direction. It will also be understood that the piston B will be maintained in the position to which it is moved so long as the electro-magnets C are energized. When, however, the said electro-magnets C are deenergized, and the armature lF drops awa therefrom, it will be seen that the valve will be closed, and that consequently the fluid pressure passing from the port I; through the casing passage e, the sub-chamber L and the valve passage j, will accumulate in the chamber K at the left of the valve, and by reason of the head f being larger in diameter than the end portion 2' of the valve, will move the valve toward the ri ht until the valve head 9' passes beyond an opens the ort d and the valve head f rests over an closes the port I). At this time the port a is open throu h the chamber K to the exhaust port 01, and consequentl the fluid pressure behind the iston 1B is enabled to pass out of the cylin er A and permit movement of the piston in the direction opposite to that first stated. From this it follows that by alternately energizing and deenergizing the electro-magnets C the piston 18 may be reciplrocated to actuate a semaphore or any 0t er device to be moved an with which the piston may be connected.

In Fi Tl I illustrate a modified valve casing and valve N designed for use when the fluid pressure is to be employed to act directly a amst the thing or device to be actuated, such, for instance, as a whistle. By reference to said figure, it will be seen that P is a pipe connected with the casing H and designed to lead to the whistle orother device to be actuated, and that the easing H is provided with a chamber K, a com aratively small sub-chamber L, and a hea I designed to receive a valve M, which valve M is adapted to be controlled and moved by the electro-mechanical means before described in detail. It will also be observed by reference to Fig. 1*- that the casing H is provided with a port d between the chamber K and the i e P, and a port 6 between the chamber l and a pipe 0, designed to lead from a suitable source of fluidressure supply. The valve N of the modi ed construction is provided with a chambered head i, a head 9', an intermediate portion h, and an end portion 2'; and it w1ll also be noted thatt e valve has a longitudinal central passage 9" extending from the chamber in the head f to the smaller end of the valve, and that a port r, formed in the intermediate portion 72. of the valve, edects communication between the said assage j and the chamber K. Thus it wil be understood that when adequate pressure is maintained in the pipe 0, the parts will be retained in the ositions shown 1n Fig. l so long as thava ve M is closed.

en, however, the valve M is moved inwardly to open the same, the accumulated pressure wil escape from the chamber K at the left of the valve, whereupon the pressure gathering in the sub-chamber L will move the valve toward the left, this because the connection between the passage 3" and the chamber in the head f is contracted as indicated by a. The said movement of valve N toward the left will open the port 01 to the port I) and ermit fluid ressure to pass from the port through to chamber K to and through the port at to the pi e P. It will also be noted that when the va ve M is closed the pressure accumulating in the chamber K at the left of the valve will, by acting against the head f, overcome the pressure in the sub-chamber L and move the valve to the position'shown, whereupon communication between the chamber K and the port d will be closed.

It will be gathered from the foregoing the form of a circuit maker and breaker.

When the said controller U is operated, the electro-magnets C are energized and deenergized as before described; it being understood that the said controller will be located at a distance from the set or sets of electro-magnets with which it is arranged in circuit, so that a person located at a distance from the fluid pressure mechanism may effectually control the operation of the latter.

In order to sound an alarm in the event that there is no fluid-pressure to move the piston B when the described electric circuit is completed by the controller U, I rovide the means shown at the right of which means comprises a bracket t, a terminal u, and a spring terminal '0; the said terminals u and '0 being arranged in a normally open electric circuit with a source of electric energy w, andan electric bell or other electric signal at, and the spring terminal a being arranged in the path ofmovement of the armature F, so that whenthe said armature F is attracted to the magnets O, the electric circuit last described wlllbe here be noted that the sub-si electro-mechanical device may be used in lieu of the bell or signal :11, without involving departure from the scope of my mvention as defined in the claims appended.

In the preferred embodiment of my invention the controller U is constructed in the manner best shown in Figs. 2 and 3- that is to say, it comprises, a casing 1, a

spring terminal 2 arranged in and connected to but insulated .from the casing 1 and con: nected electrically through a suitable binding post 3 with one of the poles of the source of electric energy T, a spring terminal 4,

arranged opposite the terminal 2 and con nected to but insulated from the casing 1 and connected through a binding post 5 with the otherpole of the source of electric energy T, a bell-crank 6 mounted in the casing and having a lower arm adapted to cooperate with the spring terminal 4, and also having its upper arm connected with a tractile spring 7 for moving it in the direction indicated by arrow in Fig. 2, suitable clock mechanism 8 arranged in the casing and having a spindle 9 and fan blades 10 thereon, and also having a spring 11 and a train 'of gearing 12 intermediate the same, and the spindle9, a wheel 13 connected with the said spring 11 and adapted when moved in one direction to put the spring 11 under tension, and having a plurality of peripheral protuberances 14, and also having a lateral projection 15, a lever 16 movable about the same center as the wheel 13, and having an arm connected with a tractile spring 17 and adapted to engage the spindle 9, and also having another arm on which is a lateral projection 18 to be engaged by the peripheral projection 19 of the wheel 13, and a hand lever 20.having an exterior arm 20* movable in front of the dial 21 of the controller U, and also having anIarm 20 for cooperating with the spring terminal 4 and the bell crank 6, and a shorter arm 20 for cooperating with the lateral projection 15 of the wheel 13.

In the operation of the controller-U it will be understood that when the handle 20 is moved in the direction indicated by arrow in Fig. 2, the arm 20 cotiperating with the lateral projection15 will move or turn the wheel 13 a corresponding distance and by so doin will ut the sprin 11 under tension. It w1ll also understoo that on said movement of the handle or hand lever 20 in the direction stated, the arm 20 will permit the upper arm of the bell-crank 6 to swing inwardly into the path of the fan 10, so as to hold said fan against rotation until the hand lever is returned to the zero position shown in Fig. 2, when the arm 20 cofiperating with the lateral projection 6 on bell-crank 6, will move the bell-crank'to carry the upper arm thereof out of the way of the fan 10. On the movement of the hand lever 20in the direction indicated by arrow in Fi 2,

a number of the protuberances 14 on w eel 13 will be carried beyond the end of the terminal spring 2; the said number of protuberances corresponding to the number to which the ointer arm 20 of the hand lever 20 is move Then when the hand lever 20 is released and the spring 11 turns the wheel 13 and the hand lever 20 in the direction opposite to that indicated by arrow, it will be noticed that the circuit will bemade or completed and broken a number of times corresponding to the number vof protuberances that were moved beyond the end of the terminal 2 in the first instance, the circuit being from the terminal 2 through the r0- tuberances 14 of the wheel, the said w eel and the arm 20 of the hand lever 20 to the terminal 4. By reason of the before described bell-crank 6, the wheel 13 cannot turn by the action of the spring 11 until the hand lever 20 is returned to the position where its pointer arm 20 is directed to zero. At that time, however, the wheel 13 turns toward the right and makes and breaks the circuit until the peripheral projection 19 on said wheel brings up against the lateral rojection 18 on the lever 16, when the w eel will be stopped in a cushioned manner and at the same time the lever 16 will be moved, against the action of the tractile spring 17 against the spindle 9 to brake the latter.

It will be gathered from the foregoing that when the pointer arm 20 of hand lever 20 is moved to 4 on the dial of the controller U and then released, the electric circuit will be made and broken. four times and in consequence the electro-magnets C'will be encr- 'zed and deenergized four times, and the piston B will be moved up and down a corresponding number of tlmes. When the pointer arm 20 is moved to 1 on the dial of the controller U as shown in Fig.1 and then released, the circuit will obviously be made and broken but once.

The construction herein illustrated and described constitutes the best practical embodiment of my invention that .I have as yet devised, but it is obvious that in the future practice of the vinvention such changes or modifications may be made as do not involve departure from the scope of my invention as defined in the claims appended.

Having described my invention, what I claim and desire to secure by Letters- Patent, is:

1.. in an apparatus for the purpose de scribed, the combinationwith a valve casing having. a chamber, an induction port and an eduction port for fluid under pressure connected with said chamber, an exhaust port also connected. with the chamber, and a com- .paratively small sub-chamber; of a piston valve having heads movable in the chamber and a reduced portion movable in the subchamber and also having a longitudinal passage connecting the chamber with the subchamber, and means for conducting fluid under pressure from the induction port to they sub-chamber, a normally closed valve controlling the exhaust port of the chamber, and means for opening said valve.

' 2. In an apparatus for the purpose described, the combination with a valve casing having a chamber, an induction port and an eduction' port for fluid under pressure con- :nected with the side of the said chamber, an

exhaust port-leading from the chamber at one end thereof, and a com aratively small sub-chamber at the opposite end of the chamber; of a piston valve havin heads movable in the chamber of the casing and also having a reduced portion movable'in the sub-chamber thereof, means for conducting fluid under pressure from the induction portto the sub-chamber, means for con- .ducting fluid under pressure from'- the induction port to the chamber, a normallyclosed valve controlling the exhaust port of the chamberand having a stem extending outside the casing, an electro-magnet, a rockshaft having an armature movable toward and from the same and also having an arm connected to the stem of the exhaust valve, a

controller, and a source of electric energy arranged in a normally open circuit with the electro-magnet and the controller.

3. An apparatus for the purpose described, comprising a valve casing having a chamber, an induction port and an eduction scarce said chamber, an exhaust port also connected with the chamber, and a comparatively small sub-chamber; a piston valve havin heads movable in the chamber and a reduce portion movable in the sub-chamber and also having a longitudinal passage extending between and connecting the chamber and the sub-chamber, means for conducting fluid under pressure from the induction port to the said sub-chamber, anormally closed valve controlling the exhaust port of the chamber, and means for opening said valve.

4. In an apparatus for the purpose described, the combination with a valve casing having a chamber, an induction port and an eduction port for fluid under ressure connected with the side of the said chamber, an exhaust port leading from the chamber at one'endthereof, and a comparatively small sub-chamber at the opposlte end of the chamber; of a piston valve havin heads movable in the chamber of the casing and also having a reduced portion movable in the sub-chamber thereof, means for conducting fluid under pressure from the induction port to the sub-chamber, means for conducting fluid under pressure from the induction port to the chamber, a normally closed valve controlling the exhaust port of the chamber and having a stem extending outside the casing, an electro-magnet, a rock-shaft having an armature movable toward and from the same and also having an arm connected to the stem of the exhaust valve, a controller, a source of electric energy arranged in a normally open circuit with the electro-magnet and the controller, and normally sepa rated terminals arranged in a normally open electric circuit with a source of electric energy and an electrical device to be actuated; one of the said terminals being movable by the armature into contact with the other terminal.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CARL R. DAELLENBAOH. Witnesses: JOHN M. CLIFFORD, H. C. RBLEA.

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