Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 4211092 | Space heating installation A heat pump having a rotatable casing and impeller. The pump includes a liquid heat exchanger and an air heat exchanger both connected to the casing so as to form a rotatable unit therewith. A magnetically active rotor is magnetically coupled to the inpel... | 07/08/1980 |
| 4211093 | Vapor cycle cooling system A vapor cycle cooling system having a rotary vane device which provides two stages of compression of the working fluid. The output of an evaporator is supplied to the input of the first compressor stage with the output of the second compressor stage being... | 07/08/1980 |
| 4211094 | Steaming plant for the treatment of continuous webs of textile material containing thermoplastic synthetic fibers A steaming plant for the treatment of continuous webs of textile material which contain thermoplastic synthetic fibers, especially polyacrylic nitrile fibers of the like. The steaming plant includes a steaming chamber and a vat-shaped, bath-free cooling d... | 07/08/1980 |
| 4211095 | Stock restraining effect adjusting mechanism of a stock guide for use with a rolling mill In a roller type stock guide of the type including, among others, a cylindrical nut member having threaded connections of opposite hands with a pair of threaded shafts and, being arranged between the two roller holder levers, operable to turn the latter i... | 07/08/1980 |
| 4211096 | Security lock with pistons and cylindrical key The automobile security lock is of the kind having a body in which is rotatable a cylinder having pistons radially movable therein by a cylindrical key having notches formed therein. The body also has pistons which cooperate with the pistons in the cylind... | 07/08/1980 |
| 4211097 | Cylinder lock assembly A cylinder lock assembly is disclosed which comprises an outer cylinder having a front end with a key hole and a rear end with an end member. The outer cylinder encloses a rotatable inner cylinder. The end member and the outer cylinder are provided with m... | 07/08/1980 |
| 4211098 | Solid state control system for mechanical press The application discloses a control system for a mechanical press in which two separate control circuits must simultaneously produce control signals to operate the ram through its ram cycle. If either of the control circuits produces a spurious output or ... | 07/08/1980 |
| 4211099 | Apparatus for making slotted beam contact elements A slotted beam contact element for an electrical connector is constructed by forming an opening in a metallic strip and applying forces to at least one portion of the strip adjacent the opening to reshape said portion. Then a bifurcated beam is formed in ... | 07/08/1980 |
| 4211100 | Wire spring forming machine This invention relates to a wire spring forming machine which consists of structure comprising endless wire feeding rollers which move continuously in a wire feeding direction and feed wire without interruption except for the cutting of each spring as it ... | 07/08/1980 |
| 4211101 | Mill stand roll assembly The invention relates to rolling, and more particularly, to a mill stand roll assembly comprising grooved rolls. A thrust shoulder for each of the rolls, formed on a roll neck, is located inside a thrust hydrostatic bearing placed in a chock secured to a ... | 07/08/1980 |
| 4211102 | Method and means for processing metal sheets Method of processing metal sheets which includes the steps of applying tensile stress to an intermediate region of a sheet of metal by engaging the sheet on opposite sides of the region, deforming the intermediate region of the sheet and removing the tens... | 07/08/1980 |
| 4211103 | Double taper clamp Lower and upper split collars are positioned in engagement with the lower and upper cylindrical surfaces of a pipe and these collars in turn held in lower and upper clamp members. The exterior surfaces of the split collars in engagement with the interior ... | 07/08/1980 |
| 4211104 | Cold drawing die for drawing polygonal shapes A cold drawing die for drawing round bar stock into shapes such as polygons. The die acts continuously on the full circumference of the round bar stock to uniformly deform the stock and yield polygons to exacting specifications using a starting material o... | 07/08/1980 |
| 4211105 | Method for measuring the damping coefficient of torsional-vibration dampers Measuring method for quickly checking the damping coefficient of torsion-vibration dampers filled with a viscous liquid and being provided with a swing ring. The basic principle relates to the recognition that there is a well measurable, numerically chara... | 07/08/1980 |
| 4211106 | Estimates of permeability from capillary pressure measurements A method and apparatus for determining the permeability of small rock samples by mercury capillary pressure measurements. The apparatus comprises a measuring cell having a very small volume and means for measuring the displacement of mercury in a sample p... | 07/08/1980 |
| 4211107 | Pipe testing machine with clamping pressure keyed to hydrostatic test pressure A pipe testing machine wherein clamping pressure on the ends of a plastic pipe being tested under internal water pressure is maintained proportional to the internal pressure so as not to crush the ends of the pipe.... | 07/08/1980 |
| 4211108 | Electrical connector test equipment A test station to determine the holding strength of an insulator body on an electrical connector contact retention clip located in a bore in the insulator. The insulator is fixed in position. Then a mandrel with a tool on one end engages the clip and a pn... | 07/08/1980 |
| 4211109 | Multiple plane road wheel for use with tire measuring and correcting apparatus A multiple plane road wheel for use in apparatus for correcting rubber tires wherein the periphery of the tire being corrected is in contact with and driven by the road wheel, the multiple plane road wheel comprising a series of uniform diameter wheel dis... | 07/08/1980 |
| 4211110 | Method and apparatus for certifying the output torque curve of a hydraulic hoist for use in dump body applications Disclosed herein is a method and test apparatus for use in determining and certifying hoist compliance with one of several minimum body and payload torque requirement curves, which curves establish torque classifications for hydraulic hoists suitable for ... | 07/08/1980 |
| 4211111 | Infiltration-inflow sewer line analyzer A method and means of determining inflow (undesired pipe drains to a sewer) and infiltration (sewer pipe leakage) into sewer lines by a coordinate measurement of pressure in sewer pipes at several locations, particularly measuring flow during rainfall and... | 07/08/1980 |
| 4211112 | Gaskets for liquid level gages A sight gage for indicating the liquid level in a tank having tubular sight members includes a multipart sealing gland to prevent the gage from deteriorating because of corrosion and deposits appearing thereon.... | 07/08/1980 |
| 4211113 | Temperature measurement In a temperature measurement region, a thermocouple and a reference voltage source in turn supply voltages via solid state switches to the center-tapped primary winding of a transformer. The output voltages of the transformer secondary winding are applied... | 07/08/1980 |
| 4211114 | Indicating thermometer An indicating thermometer comprises a molded single piece main member including a disc-like portion and a hollow stem portion having an end wall, and a temperature responsive assembly including a shaft, a plug and a bimetallic helical coil having its ends... | 07/08/1980 |
| 4211115 | Device for protecting wine against excessive exposure to air A device for protecting wine against the harmful oxidation and spoilage resulting from ullage (air space) which develops in wine aging containers. An inflatable bladder within the container, but free of contact with the inner surface thereof, is in commun... | 07/08/1980 |
| 4211116 | Assembly for and method of sampling particle-laden fluids and a cascade impactor used therewith An assembly for and method of sampling particle-laden fluids for particulate content and particle size distribution are disclosed herein and utilized at least one cascade impactor adapted to be placed within the fluid stream to be sampled. This impactor i... | 07/08/1980 |
| 4211117 | Molten metal sampling device A molten metal sampling device having an inlet and an outlet is provided with a barrier partially obstructing the outlet for solidifying molten metal on contact therewith while permitting escape of gases.... | 07/08/1980 |
| 4211118 | Ultrasonic fault detector An ultrasonic fault detector for inspecting the welds of a welded pipe comprises a casing in which contact medium is contained, an arm movable in the casing, a movable member rotatably secured to the arc, probe heads mounted on the movable member, and a p... | 07/08/1980 |
| 4211119 | Self-standardizing pressure sensor for use in an electronic fuel control system A self-standardizing pressure sensor (60) for use with an electronic fuel control system of an internal combustion engine. The sensor (60) includes a body (100) having first and second external ports (120, 122) for sensing manifold absolute pressure (MAP)... | 07/08/1980 |
| 4211120 | Tightening apparatus The preferred embodiment of the invention disclosed in this application includes a wrench, for example an operator powered wrench, for tightening a fastener assembly by the incremental application of tightening force. Also included is a control circuit fo... | 07/08/1980 |
| 4211121 | Vibrator with eccentric weights Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter th... | 07/08/1980 |
| 4211122 | Drive arrangement for an automotive window operating mechanism The window in the door of an automotive vehicle is raised and lowered by means of an externally threaded, longitudinally moving cable. The drive arrangement for the cable includes a shell having first and second shell portions of which at least one is for... | 07/08/1980 |
| 4211123 | Motion conversion mechanism An improved mechanism for converting the reciprocal motion of a drive member to pivotal motion of one or more levers includes a tooth member-receiving slot pair operatively connecting the drive member to the levers. The tooth member extends perpendicular ... | 07/08/1980 |
| 4211124 | Instrumentation coupling An improved instrumentation coupling for use in a conduit system carrying lten explosive material in a continuous melt-pour process. The instrumentation flange assembly comprises a pair of self-aligning pipe flanges fixedly connected to a specially design... | 07/08/1980 |
| 4211125 | Plural lead ball nut screw actuator Ball nut and screw in which the nut has a ball pickup and return fixture on either end, each providing arcuately spaced ball pickup and returns to and from the spiraling lands associated with plural lead helical ball tracks of the screw. With plural lead ... | 07/08/1980 |
| 4211126 | Wind machine system for pushing and lifting loads and having improved counterbalancing A wind machine has a tower frame formed by four converging beams. At the top of the tower is a gear head connected to a wind driven rotatable multibladed rotor. Connected to the gear head is a vertical shaft which is reciprocated vertically as the rotor r... | 07/08/1980 |
| 4211127 | Ratchet wrench reversing mechanism A ratchet wrench reversing mechanism which utilizes a finger spring to contact the reversing pawl. The finger spring is attached to or constrained by the reversing knob and is in concentric relationship with a central stem which effects socket release.... | 07/08/1980 |
| 4211128 | Vehicle wheel lug nut apparatus The combination of a vehicle wheel lug nut and a wrench engagable with the nut to apply and remove the nut from a lug stud. The lug nut is formed with a hexagonal recess that receives a complimentary hexagonal wrench. A plurality of splines and grooves ar... | 07/08/1980 |
| 4211129 | Method for producing a bore The present method relates to finish boring of prebored bores in a work piece such that an operative fit with a counterpart or further work piece is achieved. The finishing of the bore may be accomplished independently of the instantaneous temperature of ... | 07/08/1980 |
| 4211130 | Method and apparatus for handling and stacking brick The present invention relates to a method and apparatus for cutting, grouping and stacking brick wherein after cutting and grouping, selected courses are inverted and stacked on other uninverted courses to form two course high stacks with the respective b... | 07/08/1980 |
| 4211131 | Cutting of corrugated material A method of cutting corrugated material into a plurality of channel shaped bodies in which the material is conveyed by means of guide members parallel to a path along which the material is conveyed. The path is perpendicular to the channels defined by the... | 07/08/1980 |
