8, the switch actuator ramp 160 protrudes slidably through a slot 161 cut vertically in the sidewall of tube 19 to engage with the switch actuators 162a which are located outside the tube 19. Alternately, the switch actuators 162a may protrude through individual holes in the sidewall of tube 19 and the actuator ramp 160 may be wholly contained within the tube 19 to engage same, substantially as shown with respect to switch actuators 147a and ramp 146 abovedescribed with respect to FIG.
- Preguntas más frecuentes
- Discussion of Background Information
- Cambios en el tamaño, forma o textura de las mamas o el pezón
- Hemograma completo
- Un bulto rojo en el párpado, parecido a un grano o una espinilla
- Envenenamientos por organofosforados, talio o arsénico
- Orquiepididimitis (inflamación e infección de los testículos)
- Isquemia miocárdica
2 and 6 to thereby lower the calm water position of the float 10a, until carriage 138 has moved sufficient to cause the ramp 146 thereon to hit the actuator 147a’ of switch 147′, open such switch and thereby break the current path through the motor 18a to shut same off.
Operation of the reversing motor 18a continues until downward motion of the wave has opened switch 171 again or the rightward motion of the carriage 138 has continued sufficient to open the normally closed switch 147′. Opening of either the switch 147′ or switch 171 breaks the current loop through the battery 176 and stops the motor 18a. It is possible that the switch 171 may open and close several times, due to the advent of several waves, before the float 10a comes up to the desired calm water position. The carriage 138 supports for rotation thereon the front and rear sets of direction reversing pulleys 12b and 12g. In the particular embodiment shown, the carriage 138 takes the form of a pair of axles 139 and 139a (FIG. Pulleys 12d and 12e are rotatably mounted on plates 46 fixed on the lower beam 13a, right angle pulleys 12a and 12f are rotatably mounted on brackets 47 fixed beneath the upper beam 13, and reversing pulleys 12c and 12h are mounted for rotation on plates 48 fixed on the upper beam 13. These plates and brackets are fixed to the beams 13 and 13a preferably by welding.
The beams 13 and 13a are vertically separated sufficient to avoid immersion of top beam 13a in the expected maximum height wave at high tide or expected high water. 2. The tube 19 is open at the top and bottom and extends from near the top beam 13 downward to near the bottom 15. By placing the open tube bottom at a depth below water level equal to at least about twice expected maximum wave height, at which depth water particle motion due to the surface waves is known to be very small or insignificant compared to surface wave height, the water level Lt in the tube 19 tests to stay substantially constant halfway between the top and trough of waves outside the tube 19. Thus the level Lt in the tube 19 is essentially independent of wave height but rather will rise and fall with changes in the average level of the body of water due to tides and similar low frequency changes in water level.
Dolor Sordo Profundo Y Continuo
1, utilizing a common frame 5a having a common top beam 13b and bottom beam (not shown) supported on a plurality of pilings 14 and to support a plurality of floats 10a and related apparatus abovedescribed for generating electric current. Dolor posterior de la rodilla . The frame 5 is preferably fixed to the ground, or bottom, 15 beneath the body of water at a distance from shore where the average depth H (FIG. The tide height adjuster 18 will normally be added to the harnessing apparatus 10 abovedescribed where the latter is used on a body of water which is subject to a gradual rise and fall in average level (in addition to the rapid rise and fall of water surface waves) which gradual rise and fall will typically be tidal but in some instances may be due to rainfall cycles or other conditions that may cause significant changes in water level in a given body of water in which wave energy is to be harvested.
Concerning the hydraulic circuit 110 in more detail, cylinder 63 contains hydraulic chambers 111 and 111a on opposite sides of piston 64. Reciprocation of the piston 64 draws hydraulic fluid from a reservoir 124 through a line 125 alternatively through inlet check valves 126 and 126a respectively connected to the remote ends of cylinder chambers 111 and 111a. As the reciprocating piston draws hydraulic fluid into one of chambers 111 or 111a, it simultaneously forces hydraulic fluid out of the other, alternately through outlet check valves 122 and 122a which connect from the remote ends of chambers 111 and 111a respectively through a common line 123. The latter branches to a conventional resiliently loaded accumulator 127 and a conventional constant flow valve 128. The accumulator 127 comprises a hydraulic chamber 127a open to hydraulic line 123, a movable piston 127b and a closed pressurized nitrogen gas filled chamber 127c backing the piston 127b and hence creating a resilient load against the hydraulic fluid in chamber 127a. Constant flow valve 128 receives hydraulic fluid at high pressure from cylinder unit 17 and accumulator 127 and provides a constant flow of hydraulic oil at a prespecified pressure through constant flow outlet line 132 to a hydraulic motor 129 which through any convenient drive means drives a useful load, such as an electric generator having electric power output lines P1.
It is also contemplated that hydraulic output of several floats 10a (FIG. The double purchase pulley arrangement 21 provides a two to one mechanical advantage to thereby apply to each piston rod 56,56a double the tensile force applied by the float 10a to the cables 11,11a. Thus, if comparable diameter (i.e., strength) cable is used throughout the system, it is appropriate to double the number of cables 66,66a running from the traveling block 51 as run from the float 10a. Thus, the abovedescribed structure reciprocates the piston rods 56,56a in response to vertical reciprocation of the float 10a by the rise and fall of the waves upon which it floats. 2 structure showing the cylinder, cable and double purchase pulley mechanism. The abovedescribed set of cables 11,11a and pulleys 12a-12h and 21 and tensioning screws 41,41a is provided on the front side (as seen in FIG.