US1641198A - System for transmitting variable conditions - Google Patents

Description

V E. ROUCKA SYSTEM FOR TRANSMITTING VARIABLE CONDITIONS Filed Jan. 2. 1923 ATTORNEY Patented Sept. 6, 1927.

ERICK ROUGKA, OI IBLAHSKO, CZECHOSLOVAKIA.

SYSTEM FOR TRANSMITTING VARIABLE CONDITIONS.

Application Med January 2, 1923, Serial No. 810,389, and in Czechoslovakia Janaury 10, 1928.

This invention relates to a system of transmitting variations in a guantity, quality or condition, for example u 1d pressure, temerature, etc. by means of mpulses of auxiliary ener produced at difiierent tlme POSI- tions or rzl ations in or to equal intervals of time dependent upon the ma 'nitude of the condition at the moments of the impulses so that said time positions of the impulses are functions and measures of the condition. The impulses may be transmitted to a receiving apparatus for any desiredpurpose such as measuring or recording the condltlon or for controlling other apparatus, etc.

The object of the present invention is to provide in such a system means for compensating the variations of the quantiy, quality or condition by a mechanical force variable in cycles of equal intervals of time and produced in any suitable manner, f or instance by a spring, weight, fluid condition, electrical quantity, etc.

The invention consists in general of a means sensitive to variations in the condition to be transmitted which actuates a movable member, said means being periodically or during equal intervals of time balanced or compensated by said auxiliary force, and said movable member when said means is so compensated serving to control the production of sudden changes or impulses of auxlliary energy which are transmitted to a receiving, measurin or recording device WhICl'l may be positione remotely w th respect to the means sensitive to the condition.

In the accompanying drawings I have shown several forms and arrangements of apparatus for carryin out my invention, but it will be understoo that this is only for the purpose of illustrating the principles of the invention and that many modifications and changes can be made in the construction and arrangement of the apparatus without departing from the spirit or scope of the invention.

In said drawings in which the same characters of reference indicate corresponding and like parts,

Figure 1 is a diagrammatic illustration of a system constructed in accordance with my invention;

Figure 2 is a similar view of a modified form of a paratus for compensating the variations o the quantity or quality;

Figure 3 is a transverse sectional view taken on the line 3-3 of Figure 2;

.duces a difference in Figure 4 is a sectional view of a modified form of device to be actuated by the flow of fluid to be measured, and

Figure 5 illustrates a still cation of such a device.

Referring particularly to Figure 1, the reference character 2 designates a pipe or conduit through which flows a fluid to be measured, said conduit being provided with a throttling orifice member 4 which propressure at opposite sides thereof. A receptacle 8 for a fluid ofgreater specific gravity than .that of the fluid being measured is connected to the conduit 2 at one side of the throttic orifice, said receptacle being also connected by means of a helical coil of tubing 12 to one end of a second receptacle 10, the other end of which is connected by a second helical coil 12 to the conduit 2 at the other side of the orifice. The receptacle 10 is connected by a rod 14 to one end of a lever 16 pivotally mounted intermediate its ends as at 18. The end of the lever 16 opposite the rod 14 is connected by as ring 30 to one end of a rod 32, the other en of which carries a roller 36 following a cam 34 driven through suitable gearing 42 from a synchronous electric motor 40 connected to any suitable source of alternating current. The roller 36 is maintained in engagement with the cam 34 by means of a spring 31. A counterweight 22 on the lever 16 balances the receptacle 10 and coils 12.

In the operation of the system so far described, upon a difference in pressure in the conduit 2 at opposite sides of the orifice 4, the fluid in the receptacles 8 and 10 is compressed so as to extend or contract the coils 12. This motion is transmitted by the rod 14 to the lever 16 which is oscillated about its pivot 18, said oscillation being limited by fixed stops 20. The forces exerted on the lever 16 upon variations in the pressure difference are periodically compensated by the force exerted by the s ring 30 the tension of which is periodical y varied in regular intervals of time by the cam 34, one complete revolution of which determines one interval of time.

The lever 16 carries a contact member 52 adapted to cooperate with a resilient strip 50 which is in turn adapted to cooperate with a fixed contact 54, the said contact member 52 being connected b the wire 66 through a source 68' of auxiliary electric further modifienergy to a receiving or recording device and thence to the ground as at 96. The contact 54 is connected to the ound as at 64. When the lever 16 is oscil ated in one direction the contact member 52 engages the strip 50 so as to close the circuit through the auxiliary energy 68, thereby producing anampulse or sudden change of said auxiliary electric energy. The uration of said impulse is determined by the length of time necessary for the member 52 to move the strip 50 from engagement with the contact The receiving or recording device is shown as comprising a hand or pointer 92 carrying at one end a recording en 82 adapted to cooperate with a movab e record stri 94. The said lever 92 is pivotally mounted intermediate its ends at 80, and the end thereof opposite the pen 82 carries a roller 76 following a cam 74 driven through suitable gearing 7 2 from a synchronous electric motor T0 which may be connected to the same source of alternating current as the motor 40. The cams 34 and are thus synchronously driven. The pen 82 is normally spaced from the record strip 94 and is oscillated transversely of the record strip by means of the cam 74. A lever 88 pivotally mounted at one end to a fixed support as at overlies the pen carrying end of the pointer 92 and is provided with an armature 86 cooperating with a magnet 84 connected in circuit with the switch mechanism 5054 and source of electric energy 68. Upon an impulse of auxiliary energy from the source 68, the magnet 84 is energized and attracts the armature 86 so as to force the lever 88 against the pointer 92 and thereby force the pen 82 into engagement with the record strip 94. The contacts of the pen with the record strip are made in accordance with the moments of compensation of the forces produced on the lever 16 by the pressure difference in conduit 2 by the variable force 30, and the relation or time position of the impulses of auxiliary energy and the contacts of the pen 82 with the record strip to and in the time interval determined by a complete revolution of the cam 34 is a function of the quantity or quality.

For preventing an impulse of auxiliary energy as the switch mechanism 52, 50, 54 returns to its normal position, I provide a rotary switch driven synchronously with the cam 34 and connected in circuit with the source of auxiliary energy 68. Said switch comprises a body portion 58 of insulation having a segmental peripheral conducting portion 56 adapted to be engaged by one of a pair of brushes 62. The other brush 62 contacts with a cylindrical conducting portion 60. The length of the conducting portion 56 is such as to permit a closing of the circuit only during the moment of compensation and the measuring impulse of auxiliary energy.

It is also possible to transmit a plurality of conditions of the fluid in the conduit 2. For instance, I may utilize a Bourdon tube 26 having one end connected through a spring 28 to the lever 16 at the side of the pivot opposite the compensating spring 30, the other end of said tube being connected by a ipe 24 to the receptacle 8 so that the to e 26 is sensitive or responsive to the fluid pressure at one side of the throttling orifice. The variations in said pressure expand and contract the tube 26 so as to exert an influence on the lever 16. In a similar manner'I might transmit variations in the temperature of the fluid as well as the difierences in pressure, etc.

In Figure 2 I have shown a modified construction of apparatus for transmitting the variations of the condition to the receiving or recording devices. In this construction the fluid to be measured flows through a. conduit 110 in which is arranged transverse- 1y a vane 116 pivotally mounted at one end on a shaft 114 in a casing 112 secured to the conduit 110 by means of straps 111. The shai' t 114 is provided exteriorly of the casing 112 with an arm 118 car ing a contact portion 119 to cooperate with a contact 120, the portion 119 and the contact 120 corresponding to the switch mechanism 52, 50, 54 of Figure 1. The vane 116 and arm 118 are actuated by the force of the flow of fluid through the conduit 110. The arm 118 is connected by a resilient member 112 to one end of a lever 124, the opposite end of which is mounted on a knife edge in a oke 126 supported by a spring 128 from a med support 130. A fulcrum roller 132 is arranged between said lever and a fixed guide 134, said fulcrum roller being movable longitudinally of the lever to vary the leverage. The said roller is shown as carried in a fork at one end of a lever 136 pivotally mounted at its opposite end to a fixed support at 138, said lever being provided intermediate its ends with a pin 135 engaging a cam groove 142 in a drum 140. Said drum 140 is driven through gearing 144 by a synchronous motor 146 correspondin to th s motor 40. The interval of time is etermined by one complete revolution of the drum 140, and the mechanical force 128 compensating the force produced on the arm 118 by the fluid flow is periodically varied by swinging of the lever 136 and movement of the roller 132 longitudinally of the lever 124. The impulses of auxiliary energy may be transmitted' from the switch mechanism 119, 120 to any suitable receiving or recording device, for instance that shown in Figure 1.

In Figure 4 the vane 168 corresponding to the vane 116 is mounted in :r'gasket like casing 164 connected between two sections 160 and 162 of a conduit through which the fluid to be measured may flow. The operation of this construction is substantially identical with that of Figure 2.

, In Figure 5 I have shown a further modification of an apparatus for transmitting variations of the condition to a movable member, such as the lever 16. In this form of apparatus the reference character 17 0 designates a diaphragm casing'in which is mounted a diaphragm 172, opposite sides of which are connected b pipes 174 to opposite sides of the thrott ing orifice of the conduit 2. The diaphragm is thus sensitive to differences in pressure at opposite sides of said orifice. One side of the diaphragm is connected through a compensating spring 178 to a rod 170 periodically reciprocated similarly to the rod 32 of Figure 1 to compensate the forces acting on the diaphragm incident to the pressure difference. The other side of the diaphragm is engaged by a lever 178 connected to a shaft 180 which projects outwardly of the casing and carries an arm 182 corresponding to the arms 16 and 118 of Figures 1 and 2.

It should be understood that the present application is based particularly upon the transmitting apparatus, the general combination of transmitting apparatus of this type and receiving means to cooperate therewith being described and claimed in my copending application Serial No. 625,153, fi'ed March 14, 1923. Impulse transmitting svstems of this general character are also disclosed in Patents Nos. 1,412,586 and 1,434,064 of April 11, 1922 and October 31, 1922, respectively.

While I have shown one type of receiving or recording device, it will be understood that any other suitable device for receiving the impulses of auxiliary energy for controlling purposes or for measuring the variations of the conditions, may be utilized.

Having thus described the invention, what I claim is:

1. A system for transmitting variable conditions, comprising movable means actuated by force in accordance with variations in the condition to be transmitted, means for varying an extraneous force in cycles of regular intervals of time, a source of auxiliary energy, and means for producing cooperation of said movable means and said second-mentioned means so that at a point in each of said cycles dependent upon the then magnitude of said condition said extraneous force compensates the force exerted on said movable means by said condition to produce an impulse of said auxiliary energy whereby the time position of said impulse in the interval of time of the corresponding cycle is a function of the magnitude of said condition at the moment of said impulse.

2. A system for transmitting variable conditions, comprising movable means actuated by force in accordance with variations in the condition to be transmitted, means for varying an extraneous force in cycles of regular intervals of time, a. source of auxiliary energy, means for controlling said auxiliary energy, a movable member, and means operatively connecting said movable memberto said movable means and said secondmentioned means so that at a oint in each of said cycles dependent upon t e then magnitude of said condition said extraneous force compensates the force exerted on said movable means by said condition and said movable member is moved in one direction to actuate said auxiliary energy controlling means to produce an impulse of said energy, whereby the time position of said impulse of auxiliary energy in the interval of time of the corresponding cycle is a function of the magnitude of said condition at the moment of said impulse.

3. A system for transmitting variable conditions, comprising movable means actuated by force in accordance with variations in the condition to be transmitted, means operating in cycles of regular intervals of time for regularly varying the force of said spring, a source of auxiliary energy, and means for producing cooperation of said movable means and said second-mentioned means so that at a point in each of said cycles dependent upon the then magnitude of said condition said force of said spring compensates the force exerted on said movable means by said condition to produce an impulse of said auxiliary ener whereby the time position of said impu se in the interval of time of the corresponding cycle is a function of the magnitude of said condition at the moment of said impulse.

4. A system for transmitting variable conditions, comprising movable means actuatedby force in accordance with variations in the condition to be transmitted, a spring, means operating in cycles of regular intervals of time for regularly varying the force of said spring, a source of auxiliary energy, means for controlling said ener a movable member, and means operatively conmeeting said movable member to said movable means and said spring so that at a point in each of said cycles dependent upon the then magnitude of said condition the force of said spring compensated the force exerted on said movable means by said condition and said movable member is moved in one direction to actuate said auxiliary energy controllin means to produce an impulse of said auxiliary ener whereby the time position of said im a energy in the interval 0 time of the corof auxiliary responding cycle is a function of the magnitude of said condition at the moment of said impulse.

5. A system for transmitting variations in the flow of fluid, comprising a device mounted in a fluid conduit and movable by dynamic action of the flow of fluid, a source of auxiliary energy, said energy, and means for appl ing an extraneous oroe regularly variab e ,in cycles of regular intervals of time to said device so that at a point in each of said cycles defiendent' upon the then magnitude of said ow of fluid the force exerted upon said device by said fluid flow is compensated by the said regularly variable force to cause cooperation of said device and said secondmentioned means to actuate said auxiliary energy controlling means to produce. an impulse of said ener whereb the time position of said impu se in the interval of time of the corres onding c cle is a function of the ma itu e of the uid flow at the moment 0 said impulse.

6. A system for transmitting variations in the flow of fluid, comprising a device mounted in a fluid conduit and movable by dy namic action of the flow of fluid, a source 0 auxiliary energy, means for controlling said energy, a movable member, operative connections between said movable member and said device, and means for a lying an extraneous force regularly varia b e in cycles of regular intervals of time to said movable member so that at a point in each of said cycles dependent upon the then magnitude of the fluid flow the force exerted on said movable member by said device is'compcnsated by the said extraneous force and said movable member is moved in one direction to actuate said energ controlling means to roduce an impulse 0 said auxiliar energy, whereb the time ition of sai impulse in the interval of time of the corresponding cle is a function of the magnitude of said grid flow at the moment of the impulse.

7. A system for transmitting a plurality means for controlling 7 of fluid conditions, com rising a plurality of devices each under i uence of one of the conditions to be transmitted, a movable memher, an operative connectionbetween said movable member and each of said devices, a source of auxiliary energy, means for controlling said energy, and means for a lying an extraneous force regularly varla le in cycles'of regular intervals of time to said movable member whereby at a point in each of said cycles dependent upon the then magnitudes of all of said fluid conditions the sum of the forces exerted on said movable memher by said conditions is compensated by said extraneous force and said. movable member is moved in one direction to produce an impulse of said ener so that the time position of said impulse 1n the interval of time of the corresponding cycle of variation of said extraneous force is a function of the magnitudes of said conditions at the moment of said impulse.

8. A system for transmitting variable conditions, comprising movable means actuated by force in accordance with variations in the condition to be transmitted, a lever fulcrumed intermediate its ends, an operative f connection between one end of said lever and said first-mentioned means, means for applying an extraneous force regularly variable in cycles of regular intervals of time to the other end of said lever so that at a point in each of said cycles of variation of said extraneous force dependent u on the then magnitude of said condition t e forces exerted on said lever by said condition are compensated by said extraneous force and said lever is moved in one direction, a source of auxiliary energy, and means for controllin said energy arranged to be actuated by sai lever upon said movement thereof to produce an impulse of said energy, whereby the time position of said impulse in the interval of time of the corres onding cycle is a function of the magnitu c of the fluid flow at the moment of said impulse.

ERICH ROUCKA.

responding cycle is a function of the magnitude of said condition at the moment of said impulse.

5. A system for transmitting variations in the flow of fluid, comprising a device mounted in a fluid conduit and movable by dynamic action of the flow of fluid, a source of auxiliary energy, means for controlling said ener and means for appl ing an extraneous orce regularly variab e in cycles of regular intervals of time to said device so that at a point in each of said cycles dcendent' upon the then magnitude of said How of fluid the force exerted upon said device by said fluid flow is compensated by the said regularly variable force to cause cooperation of said device and said secondmentioned means to actuate said auxiliary energy controlling means to produce. an impulse of said ener y, whereby the time position of said impu se in the interval of time of the corresponding c cle is a function of the ma itude of the uid flow at the moment 0 said impulse.

6. A system for transmitting variations in the flow of fluid, comprising a device mounted in a fluid conduit and movable by dynamic action of the flow of fluid, a source of auxiliary energy, means for controlling said energy, a movable member, operative connections between said movable member and said device, and means for a flying an extraneous force regularly varia le in cycles of regular intervals of time to said movable member so that at a point in each of said cycles dependent upon the then magnitude of the fluid flow the force exerted on said movable member by said device is compensated by the said extraneous force and said movable member is moved in one direction to actuate said energ controlling means to produce an impulse 0 said auxiliahy energy, whereby the time position of sai impulse in the interval of time of the corresponding c do is a function of the magnitude of said uid flow at the moment of the impulse.

7. A system for transmitting a plurality of fluid conditions, com rising a plurality of devices each under in uence of one of the conditions to be transmitted, a movable member, an operative connection between said movable member and each of said devices, a source of auxiliary energy, means for controlling said energy, iind means for ap lying an extraneous force regularly varia le in cycles of regular intervals of time to said movable member whereby at a point in each of said cycles dependent upon the then magnitudes of all of said fluid conditions the sum of the forces exerted on said movable member by said conditions is compensated by said extraneous force and said. movable member is moved in one direction to produce an impulse of said energy so that the time position of said impulse 1n the interval of time of the corresponding cycle of variation of said extraneous force is a function of the magnitudes of said conditions at the moment of said impulse.

8. A system for transmitting variable conditions, comprising movable means actuated by force in accordance with variations in the condition to be transmitted, a lever fulcrumed intermediate its ends, an operative connection between one end of said lever and said first-mentioned means, means for applying an extraneous force regularly variable in cycles of regular intervals of time to the other end of said lever so that at a point in each of said cycles of variation of said extraneous force dependent u on the then magnitude of said condition tie forces exerted on said lever by said condition are compensated by said extraneous force and said lever is moved in one direction, a source of auxiliary energy, and means for controllin said energy arranged to be actuated by sai lever upon said movement thereof to produce an impulse of said energy, whereby the time position of said impulse in the interval of time of the corres onding cycle is a function of the magnitu c of the fluid flow at the moment of said impulse.

ERICH ROUCKA CERTIFICATE OF CORRECTION.

Patent No. l, 641, 198.

Granted September 6, 1927, to

ERICH ROUCKA.

it is hereby certified that error appears in the printed cpecificat on f the above numbered patent requiring correction as follows: Page}, [l ne :4 claim 3. beiorethe word "means" insert the words "a spring"; and that tlie laid Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 27th day of December. A. D. 1927.

CERTIFICATE OF CORRECTION.

Patent No. 1,641,198. Granted September 6, 1927. to

ERICH ROUCKA.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page '3, line 94, claim 3. beforethe word "means" insert the words "a spring"; and that the aid Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 27th day of December, A. D. 1927.

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