COIN-OPERATED ELECTRIC POWER SUPPLY STATION – TRAVELERS ELECTRIC INC.

description :

BACKGROUND OF THE INVENTION

The give invention is specially designed for function in dispensing electric might at remote control, unsupervised locations, such as populace campgrounds. Installations of this type are subject, at best, to only periodic supervision, and frankincense in addition to its intend officiate of supplying electricity in a convenient and goofproof manner, the station must be made plug against tampering and vandalism.

BRIEF SUMMARY OF THE INVENTION

The baron issue post of the present invention takes the shape of a well vandalproof metallic element box which is fixedly mounted on the top of a excavate metal post. Electric office is supplied by an underground supply cable which is led up through the post into the inside of the box. The operate mechanism of the station is mounted on the inner side of a obliterable control panel or wall of the box which is normally positively locked in position in the box by a key-operated lock. Within the box, a motor-driven timekeeper controls the period of time during which electric power is supplied from the add cable to an electric exit accessible from the outside of the box. The timekeeper centrifugal may be set to operate for a choose period of time determined by the interpolation of one or more coins into a coin slot. To complete the interpolation of a mint into the box, it is necessity to depress an motivate handle, accessible at the outside of the box, depression of the cover mechanically setting an escapement mechanism which shuts off the timekeeper drive and opens the exponent circumference after the elapse of a bias time interval. The escapement mechanism is so construct as to permit the drug user to select any craved multiple of time periods, up to a certain restrict, by inserting the appropriate number of coins. The world power provision racing circuit includes a racing circuit circuit breaker which will open the lap if it is overloaded. The circuit surf is of the manually resettable type and is therefore located in the inside of the box as to permit resetting by operation of the actuating handle. A sum elapsed time recorder is besides electrically connected in the racing circuit so that coin collections from the post can be verified.

other objects and features of the invention will become apparent by reference to the follow specification and to the drawings.

In the drawings :

FIG. 1 is an explode position position, with sealed parts broken aside, showing a supply post embodying the confront invention ;

FIG. 2 is a cross-section view of the post of FIG. 1 taken on a horizontal plane at approximately the location of part line 2 — 2 ;

FIG. 3 is a detail opinion of the coin-actuated escapement mechanism, taken approximately on line 3 — 3 of FIG. 1, and with certain parts broken away, showing the mechanism equitable prior to propulsion ;

FIG. 3a is a horizon similar to FIG. 3, again with sealed parts broken away and others omitted showing the mechanism being actuated ;

FIG. 3b is a view similar to FIGS. 3 and 3a showing the mechanism in its actuated or time condition ;

FIG. 3c is a see alike to FIG. 3b, with certain parts omitted, showing the mechanism as it is timing out or concluding the fourth dimension period of operation ;

FIG. 4 is a detail view of the mechanism of FIG. 3, taken approximately on line 4 — 4 of FIG. 3 ; and

FIG. 5 is a conventional diagram of the electric control circuit.

Referring first to FIG. 1, a supply station embodying the confront invention is disclosed as including a hollow alloy box designated generally 10 having removable front and rear walls 12F and 12R respectively. The top 14, side 16a, 16b and bottom 18 walls of box 10 are preferably formed from a single strip of reasonably heavy gauge metal joined into a boxlike tubular shape as by a weldment 20 along one corner. Front and rear walls 12F and 12R are slightly recessed into the front man and buttocks sides of the box 10 and are mounted in position within the corner by having one edge located between a pair of spaced flanges 22 welded to the sidewalls of the box. As best seen in FIG. 2, one couple of flanges 22 are located at diagonally opposition corners of the box, and at the remaining corners a individual flange 24 is formed integrally with or welded to the box sidewalls. A key-operated lock 26 is mounted in each of walls 12F and 12R. The hitter 28 of each lock in 26 is adapted to be engaged along the inner side of flange 24 to positively lock walls 12F or 12R in meet put in the box.

Box 10 is fixedly secured to the exceed of a hole metal post 30 which is driven into the prime to support box 10 at a commodious height. An first step 32 in bottom wall 18 of box 10 places the home of the box in communication with the home of post 30, and an underground electric supply cable 34 is led up through the department of the interior of post 30 and opening 32 into the department of the interior of box 10.

Walls 12F and 12R are identical in construction and each of the two walls has the lapp elements mounted on its outside and home sides. In FIG. 1, the outside side of front wall 12F is shown, while the inner side of buttocks wall 12R is visible. The exterior of rear wall 12R is identical to that of wall 12F, while the interior side of wall 12F has the same social organization mounted upon it as does the interior of wall 12R. therefore, while the succeed description may make reference book to either front wall 12F or rear wall 12R, the description is evenly applicable to both.

On the inner of each wall 12F and 12R, there is mounted a coin-actuated interval timer designated generally 36 which includes a mint chute 38 having a coin-receiving opening 40 at the outside side of the wall. An actuating quill 42 is rotatably mounted on the top of device 36 and projects through the wall. An actuating wield 44 is fixedly secured to shaft 42 on the exterior side of the wall to actuate device 36 in a manner to be described in more detail below.

besides mounted on the inner of walls 12F and 12R is an electric power exit box 46 of well-known construction having a socket able of accepting a conventional electric plug. In view of the fact that the baron provide post is exposed to weather, the box and plug 46 is of the weatherproof type, having a conventional seal cap 48 at the outside of the box.

An indicator light 50 is besides mounted on the corner wall to indicate when world power is available at wall socket 46, and an elapsed time indicator or recorder 52 is besides mounted on the inner side of each wall 12F or 12R to verify coin collections.

As best seen in FIG. 2, coin-actuated timers 36 are the most bulky of the components mounted on the inside of walls 12F and 12R. The timers 36 are preferably mounted near one end of each wall so that they can overlap each other when the two walls are in position, frankincense minimizing the overall size of the box.

Details of the coin-actuated timer are best shown in FIGS. 3, 3a-c and 4. Referring inaugural to FIG. 3, each timer 36 includes a shell 60 which is fixedly secured to the department of the interior english of wall 12F or 12R as by welding. Shaft 42 is rotatably journaled in a bore 62 in wall 12F and in a plain bearing 64 fixedly mounted on the top wall of casing 60. A main trip arm 66 is fixedly mounted on cock 42 at an axial place in alliance with actuating plunger 68 slidably guided in a slot 70 in the upper berth wall of casing 60. A second activating sleeve 72 is besides fixedly mounted upon cheat 42 in alliance with the reset button 74 of an electric racing circuit surf 76 mounted on casing 60. Actuating shaft 42 is rotatably biased in a clockwise steering as viewed from the outside of wall 12F by a torsion bounce 78 to a position such that arms 66 and 72 do not engage piston 68 or button 74.

Coin chute 38 is extended down through casing 60 as at 80. In FIG. 3, a coin C is shown near the lower end of parachute propagation 80 at the put to which it would fall upon being inserted into the chute. Coin C is retained in the place shown in FIG. 3 by a stuff 82 on an escapement actuating lever 84 forming depart of an escapement mechanism which determines the period of time within which electric might will be available at release corner 46.

The actual timing function of the device 36 is performed by a changeless speed electric motive 86 ( FIG. 4 ) which is energized whenever two fix contacts 88 and 90 are electrically connected to each other by contact bridge 92. Motor 86 includes a drive shaft 94 carrying a drive pennon 96 which is meshed with an idle gearing 98 mounted for barren rotation upon a fixate shaft 100. Gear 98 in turn is meshed with a gear 102 freely rotatable upon a butt beam 104 which is carried on a latch weapon 106 which is in change state rotatably supported upon shaft 100. A second gear gear 108 is fixedly secured to and rotates with gear 102 upon shaft 104. Gear 108 is in turn enmeshed with a gear 110 which is besides rotatably supported upon shot 100. As best seen in FIG. 4, gear 110 is formed with an axially projecting stuff 112 which is located to lie at the same radial distance from the bloc of shot 100 as is a correspond stuff 114 formed on a ratchet wheel 116. Lugs 112 and 114 axially lap one another and their battle is employed to initiate the cutting off of the timer.

Ratchet bicycle 116 is freely rotatable upon cock 100 and is provided with a desirable scale which cooperates with a pointer 118 to indicate the remaining time before shutoff. Pointer 118 is mechanically linked to and rotates with gear 100, the pointer and gear being coupled to each other as by a sleeve 120, while ratchet bicycle 116 is formed with a hub 122 ( FIG. 4 ) which rotates freely upon the sleeve 120.

Ratchet wheel 116 is positioned in rotation about the axis of shot 100 by a double-toothed pawl 124 mounted for rotation about a stub shaft 126 fixedly mounted upon casing 60. In FIG. 3, pawl 124 is shown in its normal situation, in which a holding tooth 128 on the pawl is engaged between two teeth of ratchet bicycle 116 to hold wheel 116 against rotation about shot 100. Pawl 124 is normally maintained in this placement by the employment between a projecting sass 130 formed on an actuating pry 84 which overlies an arm 132 integrally formed on pawl 124. Lip 130 and arm 132 are resiliently biased against each other by a spring 134 seated between lip 130 on lever 84 and another lip 136 formed on pawl 124. In addition to holding tooth 128, pawl 124 is formed with a driving tooth 138.

Returning now to latch weapon 106, a tension form 140 is connected between arm 106 and a lug 142 on casing 60 to normally resiliently maintain arm 106 in the rotative status shown in FIG. 3 at which the right-hand tap of the branch is engaged with a diaphragm pin 144 on casing 60. When branch 106 is engaged with pivot 104, a latch tooth 146 on weapon 106 is located in the put shown in FIG. 3.

With the parts in the placement shown in FIG. 3, the bridge contacts 92 are in their afford put. Bridging contacts 92 are carried at the end of a contact sleeve 148 which is mounted for rotation upon casing 60 by a shaft 150. A crank 152 formed with a latch tooth 154 at its distal end is besides pivotally mounted on shot 150. A tortuosity bounce 156 is engaged between casing 60 and a flange 158 integrally formed on crank 152. flange 158 forms a platform which bears against a hearty duration of reach arm 150, and normally the branch 148 and platform 158 are held in face-to-face date with each other by a compaction spring 160 engaged between arm 148 and a headed stud 162 fixedly secured to platform 158 and passing through a bore in arm 148.

In FIG. 3, the mechanism is shown with the contacts outdoors and with a mint C inserted in the chute to the placement at which the timekeeper is ready to be activated. It will be noted that at this time lug 112 on gearing 110 is in battle with stuff 114 on ratchet wheel 116 and that the ratchet bicycle is locked against rotation by the engagement of holding tooth 128 between two adjacent teeth on ratchet wheel 116.

To activate the timer, the actuating treat 44 at the outside of the box is pressed down to rotate quill 42 in a direction moving sleeve 66 down against the peak of actuating plunger 68. Plunger 68 is pivotally connected at its lower end as at 164 to drive crank 166 pivotally mounted on casing 60 at 168. A torsion spring 170 normally biases drive grouch 166 to the position shown in FIG. 3 at which a force stuff 172 is located clear of the way of coin C through chute 80, but at a position overlying the mint as the mint is held by lug 82 on the actuating pry 84. Drive crank 166 actually is located behind parachute 80 as viewed in FIG. 3, lug 172 projects forwardly into the chute through a slot 174 ( see FIG. 4 ).

Depression of actuating handle 44 and the attendant depression of diver 68 by its betrothal by the down moving actuating weapon 66 pivots drive sleeve 166 in a clockwise steering about its pivot 168, and drive lugworm 172 moves down into engagement with coin to force the coin down from the stead shown in FIG. 3 to the position shown in FIG. 3a. This down movement of the coin forces lug 82 to the leave from the FIG. 3 position, therefore swinging actuating lever 84 in clockwise movement about its pivot 126 to the position shown in FIG. 3a. This clockwise pivotal motion of actuating component 84 drives a toe 176 integrally formed on element 84 up against crank sleeve 152, forcing sleeve 152 in counterclockwise movement about its pivot 150 and finally shifting latch tooth 154 up by tooth 146 on arm 106. The apparent motion of tooth 154 past tooth 146 is accommodated by pivoting of arm 106 in a counterclockwise direction about shaft 100 against the action of spring 106. ampere soon as tooth 154 has passed about 146, spring 140 swings branch 106 back in a clockwise direction to shift tooth 146 under tooth 154, thereby latching sleeve 152 in the FIG. 3a place.

During the foregoing interaction between actuating lever 84 and arm 152, bridging contacts 92 are mechanically held against completing the circuit between fixed contacts 88 and 90 by a pry 178 freely pivotable upon lever 184 as at pivot 180. Lever 178 is slidably guided between two contacts 88 and 90 and projects through between the contacts to engage bridge 92 to hold at least one side of the bridge off from contact.

As crank arm 152 is elevated by the clockwise pivoting movement of lever 84 about its pivot 126, the pivoting legal action of element 84 about pivot 126 alike causes a pivot movement of pawl 124, the movement of lever 84 about pivot 126 being transmitted to the pawl by spring 134. The pivoting carry through of pawl 124 disengages holding tooth 128 from ratchet wheel 116, and at the like time swings drive tooth 138 of the pawl into engagement with a tooth of ratchet bicycle 116 to drive the ratchet wheel in a clockwise commission about cheat 100.

After the actuating treat has been swung to its downwardmost position, mint C has passed beyond stuff 82 and drops freewardly down the chute into the collection box 184. With the coin disengaged from lug 82, a reelect give 186 connected between actuating pry 84 and casing 60 returns the lever to its original FIG. 3 position, as shown in FIG. 3b, frankincense restoring holding tooth 128 into date with ratchet steering wheel 116 and at the lapp time withdrawing lever 178 to the right to permit bridge 92 to make across contacts 88 and 90.

The action described above in perfume mechanically rotates ratchet wheel 116 one notch or tooth in a clockwise focus from its original FIG. 3 placement. This increase of displacement will permit the device to operate to supply electric current for one unit time period, as for example, one-half hour. If the exploiter wishes to have electricity supplied for a longer time period, he simply inserts another mint and repeats the foregoing process, thereby moving ratchet wheel 116 one more notch away from its original position. In FIGS. 3a and 3b, the relationship between lugs 112 and 114 is that which would exist if the coin shown in FIGS. 3a and were the fourth consecutive coin inserted in the parachute.

Referring concisely now to the electrical diagram of FIG. 5, it will be seen that when contact 92 bridges contacts 88 and 90, an electrical circuit is completed to the timekeeper motor 86 and through circumference circuit breaker 76 to outlet box 46 to supply stream. Indicator light 50 will be energized and illuminated a soon as the circumference is completed.

Returning now to FIG. 4, with timer centrifugal 86 in operation, pinion 96 is driven in a counterclockwise direction and through gear train 96, 98, 102, 108 gear 110 is driven in a clockwise guidance. Because ratchet wheel 116 is held stationary by holding tooth 128 of pawl 124, clockwise rotation of gear 110 carries its lug 112 in a clockwise direction toward lug 114 on ratchet wheel 116. After elapse of a bias time, or more correctly, a given phone number of revolutions of ceaseless speed motive 86, lug 112 is driven into engagement with lug 114. Lug 114 is integral with wheel 116 which is latched by pawl 124, and frankincense gearing 110 can not rotate any far, once lugworm 112 is engaged with stuff 114. Timer motor 86 continues to drive, but since it can nobelium longer rotatively progress gear 110, it causes gear 108 to become a erratic gear which climbs up the tooth of gear 110. This legal action carries with it arm 106, lifting arm 106 up off its blockage fall 144, as shown in FIG. 3c until the tooth 146 on branch 106 is retracted from below tooth 154 on arm 152. angstrom soon as dentition 146 and 154 are disengaged, tortuosity spring 156 swings branch 152 in clockwise campaign about its pivot 150, thereby swinging arm 148 in clockwise bowel movement about pivot 150 to disengage contacts 92 from contacts 88 and 90, thereby breaking the circuit to the timekeeper centrifugal and opening the tour between the provide cable 34 and outlet box 46.

Referring now to FIGS. 1 and 5, the overall operation of the station is as follows. By inserting a mint in mint slot 40 and depressing actuator handle 44, the drug user then has available at exit 46 electric ability for a preset time period, typically one-half hour. If a longer period of use is desired the exploiter can repeat the action to obtain any coveted multiple of the unit time time period up to the capacity of rack 116, say 20 hours. Referring to the electric schematic of FIG. 5, the insertion of the mint and subsequent depression of the actuating handle engages contact bridge 92 with contacts 88 and 90, as explained in contingent above, therefore completing the circuit through add production line L1 from the main supply line 34 to outlet 46. Upon closing of the contacts, an electrical lap is completed through the timekeeper drive, thus starting the motor in operation, and besides energizing clock time fipple flute 52. Indicator light 50 is besides energized, giving an external indication at box 10 that power is available at release 46. After the postpaid period of time runs out, contacts 92, 88, 90 open, thereby deenergizing timer motive 86, elapsed time fipple flute 52 and index light 50 and breaking the lap to outlet 46.

If, during process, an electric overload occurs, circuit breaker 76 will open, frankincense opening the supply circuit to indicator abstemious 50 and to outlet 46, but not affecting the electrical circuit to timer motor 86 and time registrar 52. Upon correcting the clog, the drug user can reset the circuit breaker without inserting another coin only if some idle time still remains in the device. Depression of actuating wield 44 without inserting a coin will cause arm 72 on actuating shaft 42 to depress the lap circuit breaker reset button 74 to reset the circuit circuit breaker.

It will be noted that the circuit breaker 76 is automatically reset each time actuating wield 44 is depressed, and therefore the overload of a circuit and opening of racing circuit surf 76 by a previous drug user does not pose any trouble to the subsequent user.

The construction of the box is such as to minimize the effects of attempted vandalism. As explained above, the top, sides and bottom walls are constructed from a individual strip of relatively heavy estimate metal and welded along one corner as at 20 to present no external joints affording an opportunity to pry the walls apart. The recess of front and rear walls 12F and 12R makes it difficult to do any effective nosiness along the edge of the wall of which lock 26 is mounted, since any prying pull developed here is exerted parallel to the surface of the wall and not outwardly. The adjourn of the walls places actuator cover 44 within the recess, thereby partially shielding treat 44 from hammering.

The mount of all of the operate mechanism on the interior of the rampart makes these parts promptly accessible for compensate or surrogate when the wall is removed. Time fipple flute 52 is a factory sealed unit of measurement so that it provides an accurate record to verify coin collections evening though this unit is accessible to the collector.

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