In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 5024153 | Print drum for a postage meter A print drum for a postage meter has a drum structure provided with a plurality of recesses in its periphery. One of these recesses accommodates a print wheel assembly and at least some of the other recesses are provided with axially extending means where... | 06/18/1991 |
| 5024154 | Transfer roller switching mechanisms of ink and water supply apparatus for use in printing presses In apparatus for supplying ink and or water to a plate cylinder through fountain roller, swinging roller and a transfer roller, the transfer roller is supported by a swinging lever and the motion thereof is allowed or prevented by a spring biased control ... | 06/18/1991 |
| 5024155 | Finger protecting element for cylinder nip A combination of counter-rotating cylinders having a nip therebetween, and a device including a finger protecting element pivotally mounted at an end thereof on a shaft extending parallel to axes of the cylinders and disposed adjacent the cylindrical surf... | 06/18/1991 |
| 5024156 | Safety device for the control of web-fed rotary printing machines A safety device for control of a roller rotary printing machine includes a plurality of sensors positioned either before or behind a web advancing device for recognizing tears or other damages in a region of the edges of the advancing web, an evaluation d... | 06/18/1991 |
| 5024157 | Shock detecting device A shock detecting device having a housing, a weight disposed within the housing and rotatably slidable in response to an external shock. A cam is formed on the weight for engaging or disengaging the firing lever by the rotational sliding of the weight. A ... | 06/18/1991 |
| 5024158 | Multi-directional initiator for explosives A method of blasting cap-sensitive, non-nitroglycerine-sensitized explosives and an initiating assembly for use in the method are provided. The method comprises initiating a column of the explosives by directing two radial/forward shock forces from an ini... | 06/18/1991 |
| 5024159 | Plane-wave forming sheet explosive An explosive sheet which is formed by a layer of explosive material, a layer of foil, and an inert space forming material. These three layers are repeated to number, n, times to form a composite plane-wave forming explosive sheet.... | 06/18/1991 |
| 5024160 | Rapid burning propellant charge for automobile air bag inflators, rocket motors, and igniters therefor A rapid burning propellant charge for applications including igniters, launch eject motor, and gas generators for automobile air bags. The propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of s... | 06/18/1991 |
| 5024161 | Molding apparatus A forming apparatus for the manufacture of casting molds made from sand or another moldable mixture by means of a pressure shock wave from a gaseous medium is proposed. The forming apparatus comprises a structural frame constructed from columns, cross bea... | 06/18/1991 |
| 5024162 | Cable transport apparatus A cable railway installation comprising cable return disks (2) arranged at he bottom and top stations, at least one of which disks (2) is driven, and comprising a carrying and hauling cable (3) arranged around the cable return disks (2) and guided over gui... | 06/18/1991 |
| 5024163 | Derailment resisting, tractive power railway system There is provided a multi-rail vehicle system, which can be used to improve the efficiency of existing systems and to reduce risk of derailments. The systems comprises a vehicle designed to ride upon a pair of conventional outer rails and an additional lo... | 06/18/1991 |
| 5024164 | Mobile storage system with improved driving assemblies A mobile storage system including a plurality of one-piece track members each defining a guideway and a series of longitudinally spaced holes. The system also includes a carriage rotatably supported on the track members on rollers riding in the guideways.... | 06/18/1991 |
| 5024165 | Self-steering bogie for a railway vehicle An independent wheel bogie for a railway vehicle comprising a central support structure, four independent arms carrying respective axles of the wheels and articulated to the support structure by resilient bushes, a suspension device for suspending a vehic... | 06/18/1991 |
| 5024166 | Bogie for rail vehicles A bogie for rail vehicles with a low-seated loading ramp, comprises at least two sets of wheels with a small axle base and a bogie frame comprising lateral cheeks and a traverse extending between every two axles. The sets of wheels are clamped into the bo... | 06/18/1991 |
| 5024167 | Desk system An office desk system or work station is based on a structural supporting frame or chassis made up of two spaced parallel end gables and a beam extending between the gables at the rear edge of a work top. Each gable is a welded assembly of steel channels ... | 06/18/1991 |
| 5024168 | Carousel storage device with rotating objects on top thereof A multi-sided carousel storage device is rotatably mounted and has a plurality of storage cavities for receiving objects. Part of the rotatable mechanism comprises a stationary member having an upright member connected thereto, the upright member being fi... | 06/18/1991 |
| 5024169 | Process to refine flyash captured from pulverized coal fired boilers and auxiliary equipment The present invention pertains to a process and apparatus for the refinement of exhaust particulate matter from a boiler or other device burning an organic fuel such as coal. More specifically the present invention is a process or apparatus that utilizes ... | 06/18/1991 |
| 5024170 | External combustor for gas turbine engine An external combustor for a gas turbine engine has a cyclonic combustion chamber into which combustible gas with entrained solids is introduced through an inlet port in a primary spiral swirl. A metal draft sleeve for conducting a hot gas discharge stream... | 06/18/1991 |
| 5024171 | Reduction of acidic emissions from combustion of sulfur-laden fuels The sulfur trioxide in the combustion gas stream of a power plant is reacted with injected ammonia to produce a solid ammonium sulfate that is captured, and not released to the atmosphere. A feedforward signal indicative of the total mass flow of sulfur t... | 06/18/1991 |
| 5024172 | Plant seedling holding and dispensing mechanism A seedling holding and dispensing mechanism used on planters having a planting arm which is intermittently extended downwardly into the soil. The seedling holder and dispenser is preferably mounted along the trailing edge of the planting arm. The seedling... | 06/18/1991 |
| 5024173 | Clutch for chemical dispenser for planter A clutch arrangement for a particulate chemical meter for use in a planter includes an axially and rotationally moveable shaft having a coupler on a first end and a knob on a second end thereof. The clutch shaft is inserted through and coupled to a chain-... | 06/18/1991 |
| 5024174 | Airbag stitching device An airbag stitching device includes a sewing machine having a stitching head and a rotatable disc shaped support member adjacent to the stitching head. The rotatable disc shaped support member and a rotatable clamp are adapted to receive and hold a pair o... | 06/18/1991 |
| 5024175 | Flexibility enhancement multi-machine carousel The present invention is a multi-machine carousel assembly which supports at least two machines for use at a work station. The invention comprises a base, pivot device, bearing assemblies, and a platform. The base supports the platform by the bearing asse... | 06/18/1991 |
| 5024176 | Needlepoint sheet having octagonal openings and method of use thereof Needlepoint sheet having channel perforations with octagonal upper and lower openings. Thread drawn through a channel in a diagonal direction is pulled over a flat surface which widens the area covered by the thread. The needlepoint sheet is made of a pol... | 06/18/1991 |
| 5024177 | Wind sailing surf vessel with dual planar surfaces A stable and versatile wind sailing vessel for sailing over a water surface comprising first and second elongated and buoyant boards, each having a planar undersurface. An arching platform disengagably engages the boards in a spaced, side-by-side relation... | 06/18/1991 |
| 5024178 | Underwater propulsion device An underwater propulsion device for propelling a swimmer through the water has a hand held propulsion unit which permits the swimmer to move his hand and forearm to control direction of movement in the water. This allows superior maneuverability in the wa... | 06/18/1991 |
| 5024179 | Foldable signal flag and standard assembly A self-storing flag and flag assembly is described for sub-surface mounting to a support surface. The assembly will facilitate extension of a telescoping flag standard from a below surface stowed position to an upright extended operative position, display... | 06/18/1991 |
| 5024180 | Stamp and envelope moistener A moistener for stamps and envelopes is provided which includes a durable metal roller providing even water flow across the roller. The roller is made for continuous use with water for the purpose of moistening a layer of dried glue, which has been previo... | 06/18/1991 |
| 5024181 | Method for the development of an electrostatic latent image A method of forming a multicolor toner image on an electrostatic latent image carrying member wherein developer containing a carrier and toner is transported to a developing region on a cylindrically shaped outer sleeve member of a developer transporting ... | 06/18/1991 |
| 5024182 | Thin film forming apparatus having a gas flow settling device An apparatus for forming a thin film on a substrate by bringing a first gas and a second gas into reaction with each other in a reaction chamber near the surface of the substrate in the reaction chamber. The apparatus has a plasma generating chamber dispo... | 06/18/1991 |
| 5024183 | Animal training device An effective, dependable, and humane animal training device employs negative reinforcement to discourage undesired behavior in household pets, especially dogs. An ordinary mousetrap is combined with a flapper which attaches to the spring biased jaw or spr... | 06/18/1991 |
| 5024184 | Direct fuel injection internal combustion engine A direct fuel injection internal combustion engine comprises an auxiliary piston in an auxiliary cylinder for modulating sharp pressure rises in the combustion chamber. The main piston has a cavity into which injected fuel is directed. The fuel injection ... | 06/18/1991 |
| 5024185 | Ignition distributor of internal combustion engine Leading means are disclosed for electrically connecting an electrical device contained in the housing of an ignition distributor of the internal combustion engine to the outside. A connecting section arranged in a location for contact with the terminal of... | 06/18/1991 |
| 5024186 | Remote automobile starter The present invention pertains to features which are to be incorporated into remote automobile starter units. These features include a diagnostic system to aid in the installation of a remote automobile starter unit. Another aspect is a security feature w... | 06/18/1991 |
| 5024187 | System for axially locating a camshaft An improved vehicle internal combustion engine's overhead camshaft type cylinder head assembly having a camshaft with a pair of lobes closely spaced axially a precise distance and a camshaft bearing cap positioned between the spaced lobes with a width dim... | 06/18/1991 |
| 5024188 | Fuel supply system component assembly Disclosed herein is an engine comprising an engine block, a crankcase cover mounted on the engine block and including opposite first and second sides, a first carburetor mounted on the block at the first side of the crankcase cover, a second carburetor mo... | 06/18/1991 |
| 5024189 | Engine unit An engine unit includes a cylinder block of a short-skirt type which has a plurality of first partition walls and a plurality of crank journals formed on the partition walls and rotatably receiving the crankshaft. Bearing caps are fitted to the crank jour... | 06/18/1991 |
| 5024190 | Oil supply device for two cycle engine A lubricating system for a two cycle internal combustion engine as applied to an outboard motor wherein small amounts of lubricant can be pumped by a diaphragm type pump through the use of an air bleed that mixes air with the lubricant being pumped. Pulsa... | 06/18/1991 |
| 5024191 | Control system for a variable valve actuating mechanism of an internal combustion engine A control system for a variable valve actuating mechanism for an internal combustion engine for varying the lift or timing of intake or exhaust valves in response to engine operating conditions. The control system includes sensors for detecting the pressu... | 06/18/1991 |
| 5024192 | Variable compression ratio internal combustion rotating engine A variable compression ratio rotating engine comprises a containing cylinder forming variable volume chambers, defined by the cylinder inner wall and piston side walls, the cross-section of which has substantially the shape of a circle sector. During the ... | 06/18/1991 |