Abstract: An attachment for bicycles for carrying packages, small articles, newspapers, and the like. The device includes a saddle-type load-carrying container over the rear wheel of a bicycle. An outrigger wheel assembly is connected to and spaced outwardly from each of the sides of the container including a load-bearing wheel mounted in a wheel skirt connected with the container side by an arrangement of straps and hinges which permit relative movement between the wheel skirt and the container allowing the wheel assembly to change positions relative to the rear wheel of the bicycle to compensate for irregular running surfaces. Vertically spaced bumper rollers are secured between the container sides and each wheel skirt to maintain the proper spacing in between the outrigger wheels and the container sides.

Abstract: A food processing device comprising a heating and storage unit for both soft tortillas and toasted tortilla chips. The unit includes a power driven conveyor belt system for continuous movement of soft tortillas through a heated zone and a storage and dispensing chamber above the conveyor belt system for toasted tortilla chips. In one form of the invention, the conveyor belt system comprises upper and lower horizontal belts having an upper portion of the lower belt which runs essentially in contact with a lower portion of the upper belt through the heated zone for lightly pressing and moving soft tortillas continuously through the heated zone. Both forms of the unit include structure for directing the heated gases employed with the soft tortillas into the storage and dispensing portion of the unit for heating and keeping warm the toasted tortilla chips.

Abstract: Precompletion apparatus for use in air drilling and casing a problem formation in a well including a casing landing nipple at the lower end of a first string of solid well casing installed by suitable conventional techniques, an expendable plug for engagement in the casing landing nipple to plug a well bore after air drilling below the casing landing nipple to control the well during inserting of a slotted liner, an expending shoe for engaging and displacing the plug downwardly from the landing nipple, a slotted well bore casing for lining a well bore along a problem formation which has been air drilled, and a casing hanger for supporting the slotted liner along the air drilled portion of the well bore from the landing nipple. The plug and hanger each have locking keys engageable with a casing landing nipple and expandable seals for sealing with a seal surface along the casing landing nipple.

Abstract: A device for use with an internal combustion engine for reconditioning oil by removal of solid and liquid contaminants including a housing having an oil inlet at one end and an oil outlet at an opposite end and containing a filter for removal of solid matter, a preheating chamber, a vaporization chamber for removal of liquid contaminants, and a convex conical vaporization plate separating and defining the roof of the preheating chamber and the floor of the vaporization chamber. The vaporization plate has a plurality of concentric tiers. The upper innermost tier of the vaporization plate has a plurality of capillaries each of which opens to the top planar surface of the tier through an expansion cup defined within an upwardly protruding lip. An electrical resistance heater is supported above the vaporization chamber for heating the vaporization chamber, the vaporization plate, and the preheating chamber. A vent for vaporized contaminants extends through the upper end of the housing.

Abstract: A safety valve system for use in a well having a tubing string for conducting well fluids to the surface, a landing nipple secured in the tubing string for the releasable engagement of a well tool locking mandrel, a sliding sleeve valve connected in the tubing string below the landing nipple and provided with a side port controlled by a sliding sleeve and communicating with a control fluid line extending to the surface, and a safety valve tool string including a locking mandrel releasably supported in the tubing string at the landing nipple, a sleeve shifting device connected with the locking mandrel for opening and closing the sliding sleeve valve when installing and removing the safety valve tool string, and a well safety valve supported from the sleeve shifting device and operable responsive to control fluid pressure introduced into the tubing string through the side port in the sleeve valve.

Abstract: A locking device especially adapted to secure relatively movable concentric members together. The device is particularly useful for locking a bearing on a shaft or within a housing. Broadly, the device includes a locking part disposed between first and second concentric members and biased into a frictional engagement with a first of the members so that when such member moves relative to the second member, the locking part is moved frictionally engaging the second member for locking the members together. In one form of the locking device a coil spring is wound about and frictionally engages a first member within a second member and has a tang engageable with a recess in the second member for interlocking the members responsive to rotation of the first member. Another embodiment of the locking device includes an arcuate-shaped spring having wedge portions engaging a first member within a recess of the second member.

Abstract: An electrical generator system including a waterwheel apparatus as a prime mover. The waterwheel apparatus as a plurality of pivoted buckets mounted in circumferentially spaced relation around a central hub and having an outer rim provided with a ring gear driving a pinion gear on the generator shaft for obtaining a high rotational speed in a generator from a relatively slow turning waterwheel. The waterwheel buckets each fold outwardly to hold a maximum quantity of water as the bucket reaches approximately the horizontal center line of the wheel on the downwardly moving side of the wheel while each bucket empties at the vertical center line of the wheel as the bucket passes the bottom side and thereafter folds inwardly as the bucket moves upwardly and over the top of the wheel.

Abstract: A device for converting a well packer to a bridge plug for closing off flow along a well bore to isolate adjacent portions of the well bore on opposite sides of the packer, including a tubular sub connectible on the lower end of a well packer and a frangible closure plate supported in sealed relationship in the sub across the bore of the packer for closing off flow through the packer. The frangible plate is installed in the packer at the surface prior to setting the packer in the well bore and thereafter is destroyed without removal of the packer from the well bore to establish communication through the packer. The plate is insulated against vibration, withstands high hydraulic loads from both sides while fragmenting responsive to very low mechanical loads, and expends in small pieces to give a full bore opening without obstruction.

Abstract: A portable hand held device for distributing granular material including a hopper for holding the material, a support base for the hopper, a distributor wheel having circumferentially spaced outwardly opening compartments suspended beneath the base under the discharge of the hopper, a hand crank operated drive assembly mounted on the base coupled with the distributor wheel turning the wheel, an arcuate shield or side wall suspended from the base around the portion of the distributor wheel in the vicinity of the discharge of the hopper into the wheel, and a shutter slide mounted between the distributor wheel and the hopper discharge for adjusting the rate of flow from the hopper into each compartment of the distributor wheel.

Abstract: A stiff-leg crane for use in handling loads in the erection of buildings and the like, including a base rotatable 360.degree. on a bearing, a vertical mast rigidly mounted at a lower end at the center of rotation of the base, a boom pivoted at a foot end along one end of the base, boom support and load handling lines from the top of the mast to the boom, a pair of adjustable lay leg mast braces for boom and mast support from either the crane base or the structure being erected by the crane, and means for securing the lower free ends of the lay legs to either the base or the structure being erected. The lay legs are adjustable both in length and the angle between the lay legs and the mast. Additionally the lay legs are fully rotatable 360.degree. about the mast and may swing between the mast and the boom for relocation from one side of the mast to the other without interference with the boom or the boom support and load handling lines.

Abstract: Air conditioning apparatus which includes an air blower-heater module useful independently and also in a unit having cooling coils providing means for heating, cooling, and filtering air in air conditioning systems for enclosures. The module has a squirrel cage type centrifugal blower in a housing having scroll shaped baffling with an electric heater at the outlet. The baffling is shaped to minimize turbulence; the heater is mounted within a heat shield spaced within the baffling to reduce housing temperatures; and the blower motor is mounted exterior of the blower chamber for maximum air input. A preferred application of the module is in a cube shaped fancoil unit having a square cooling coil assembly which may be installed at various orientations to provide for bottom drainage with a variety of directions of air intake and discharge. In the cube unit using the module, the air intake and discharge paths are perpendicular to each other.

Abstract: A method of incrementally treating a section of an earth formation around a well to improve fluid flow into the well. The method includes the steps of installing a well casing provided with spaced landing nipples, perforating and treating a bottom portion of the formation by suitable standard procedures including employing a packer in the casing above the location of perforation and treating, running a retrievable plug into the well bore, releasably locking the plug at one of the landing nipples above the first location of perforation and treating, running a perforator into the well above the plug and perforating the casing above the plug, treating the formation through the perforations above the plug, and thereafter sequentially treating the formation at selected depths up the hole by engaging the plug with a combination overshot handling tool and perforator to lift the plug upwardly and install the plug at the next landing nipple above the previously perforated and treated zone.

Abstract: Well tools comprising a go-devil actuated well safety valve, a locking assembly for releasably locking the safety valve at a desired depth in a well, running and pulling tools for installing and removing the safety valve, a go-devil ball for closing the safety valve, and apparatus for dropping the go-devil ball into a well under pressure and for retrieving the ball. The go-devil safety valve is mounted above the locking assembly and includes a trigger type latch which is released from above by the impact of the go-devil ball. The valve may be reset for reopening the valve without removal of the valve from the well bore by means of a special reset and pulling tool disclosed herein. The go-devil valve is installed in a well, preferably above a storm choke, to shut the well in under emergency conditions which releases the go-devil ball at the surface in response to hazardous conditions such as fire. The go-devil ball drops to the go-devil valve which closes in response to the impact of the ball.

Abstract: Precompletion apparatus for use in air drilling and casing a problem formation in a well including a casing landing nipple at the lower end of a first string of solid well casing installed by suitable conventional techniques, an expendable plug for engagement in the casing landing nipple to plug a well bore after air drilling below the casing landing nipple to control the well during inserting of a slotted liner, an expending shoe for engaging and displacing the plug downwardly from the landing nipple, a slotted well bore casing for lining a well bore along a problem formation which has been air drilled, and a casing hanger for supporting the slotted liner along the air drilled portion of the well bore from the landing nipple. The plug and hanger each have locking keys engagable with a casing landing nipple and expandable seals for sealing with a seal surface along the casing landing nipple.

Abstract: A well tubing system for releasably coupling lower tubing strings with upper tubing strings in a well bore without rotation from the surface including a well packer on a plurality of lower tubing strings, a first flow coupling and guide sleeve on the upper end of the packer, and a second flow coupling and guide head on the lower ends of the upper tubing strings. The upper tubing strings and guide head are connected with and disconnected from the guide sleeve on the packer by longitudinal motion only. The guide head has spiral guide surfaces leading to a vertical orienting slot. The guide sleeve includes a guide lug which engages the guide head guide surfaces and slot to rotate the head and upper tubing strings to the desired orientation. In alternate forms of the invention means are provided for the running and retrieving of either one or both of the upper tubing strings independently of the other of the strings after the initial connection of the guide head into the guide sleeve in the well bore.