Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 4832752 | Cleaning and deliming glass washer spray nozzles In normal washing operation of the beverage glass washer of the invention, detergent solution discharged from a set of washing nozzles is collected in a tank from which a recirculation pump withdraws it and delivers it back to those nozzles for redischarg... | 05/23/1989 |
| 4832064 | Glass washer with rotary carrier In a glass washing machine having a glass carrier rotatable on an upright axis, half of the carrier is always in an access zone where glasses can be loaded onto the carrier and removed from it, the other half in a cleansing zone where detergent solution i... | 05/23/1989 |
| 4825887 | Glass washer spray discharge and control means In the disclosed glass washing machine each spray curtain comprises a vertically slitted sheet of supple plastic and a similarly slitted guard sheet of a stiffer but flexible smooth-surface plastic. The guard sheet extends down through about the upper hal... | 05/02/1989 |
| 4823674 | Anti-aircraft sight A sight for an anti-aircraft gun, which is manually aimed, comprises a ranging unit, a gun-fixed aiming unit and a calculating unit, preferably a computer. The ranging unit comprises means for optical aiming at the target, and devices for determination of... | 04/25/1989 |
| 4805649 | Beverage glass washer In the glass washer of this invention, a linear conveyor carries glasses successively through a prewash, a detergent wash and a germicidal rinse. Once discharged from rinsing nozzles, rinsing liquid is collected in a prewash tank from which it is pumped e... | 02/21/1989 |
| 4796009 | Electronic warning apparatus The outdoor alerting and warning device of this invention comprises numerous electronic drivers and an axially shallow drum-shaped resonance chamber having an inside diameter equal to a whole-number multiple of one-quarter of the wavelength of a sound wav... | 01/03/1989 |
| 4769913 | Fuzz remover A fuzz remover wherein a blade having cutting edges at side edge portions thereof is held between a fuzz remover body having at both side edge portions thereof a plurality of teeth each of which projects therefrom in upwardly-inclined state and a bottom m... | 09/13/1988 |
| 4766656 | Apparatus for securing metal tabs to file unit bodies A table supports a cardboard file unit body as it is manually slid edgewise forwardly, engaged against a fixed but adjustable side edge guide, into engagement with a fore-and-aft movable front edge guide and an air microswitch thereon that actuates a punc... | 08/30/1988 |
| 4752680 | Tags for identification system The invention relates to a card-like information carrier readable with RF waves and having resonant devices at spaced intervals across its face that are tuned to different resonant frequencies, an item of information being encoded in the pattern of those ... | 06/21/1988 |
| 4711073 | Clipping propulsion means for tractor mower An impeller is mounted above the top wall of the housing of a mower carried by a riding vehicle, near the side of the mower at which it has its clipping outlet. The rotor of the impeller rotates on a vertical axis that is between the clipping outlet and t... | 12/08/1987 |
| 4709961 | Self-releasing ratchet-type seat adjustment In the self-releasing pawl and ratchet mechanism of this invention, for controlling positions of adjustment of a seat element that is movable relative to a frame element, one member of the pawl-ratchet pair is fixed to one of those elements, the other mem... | 12/01/1987 |
| 4697855 | Bottle trough security device A closure for a bartender's bottle trough comprises three hingedly connected flat panels. In an open position the three panels, in coplanar relationship, are disposed edgewise upright, serving as a rear wall of the bottle trough and vertically slidably co... | 10/06/1987 |
| 4688444 | Control device A control device for producing electrical signals which correspond to manual movements of a stick part and which are used for adjustment of a controlled element has a relatively stationary body part with a hand supporting surface and a stick projecting ou... | 08/25/1987 |
| 4685598 | Keg valve assembly improved for fast filling In a valve assembly receivable in an outwardly projecting neck in a keg, for normally sealing the keg and for cooperation with a detachable coupler by which the keg is tapped, the cylindrical spring retainer of the assembly has at its axially inner end de... | 08/11/1987 |
| 4684096 | Mounting device for helmet A mounting device for a helmet wherein a hook section to be fixed on a wall surface for holding a circumferential part of a helmet wearing opening has a transverse bar. The transverse bar projects to the right and left sides of the hook section at a locat... | 08/04/1987 |
| 4679526 | Workpiece holder for coating processes A holder for workpieces to be coated is bent from a single piece of stiff but springy wire. A medial portion of the piece of wire defines two clamping arms that are connected at their front ends by a spring coil; and one end portion of the wire defines a ... | 07/14/1987 |
| 4666092 | Torque limiter for gyratory crusher anti-spin clutch The automatic random reset torque limiter of the invention, connected between the crushing head of a gyratory crusher and its one-way anti-spin clutch, comprises a carrier element and a coaxial detent element that have end surfaces opposing one another ac... | 05/19/1987 |
| 4641139 | Method and apparatus for measuring the level of a fluent material in a container In a method of measuring the level of a flowing material kept in a container there is employed a microwave signal that is fed from a transmitter through a tubular waveguide (7) that extends vertically downwardly through the container and communicates ther... | 02/03/1987 |
| 4624576 | Adjustment of drum mixer trunnions In a mixer having an elongated rotatable drum surrounded by coaxial front and rear tires, the invention facilitates adjustment of the positions of the two trunnion units that supportingly and drivingly engage each tire. Each trunnion unit comprises a base... | 11/25/1986 |
| 4619182 | Arrangement for deflecting powder gases from an aircraft weapon Powder gases issuing from the muzzle of an aircraft-mounted gun are initially deflected to one side of the line of fire by a mouthpiece in the form of a length of pipe coaxially mounted directly in front of the muzzle and having an elliptical mouth extend... | 10/28/1986 |
| 4604933 | Carbide-tipped circular saw for metal cutting at low surface speeds A carbide tipped saw for cutting non-ferrous industrial metals, capable of use on a low-rpm metal sawing machine designed for saws with high-speed steel teeth, has higher hogger teeth alternating around its periphery with lower raker teeth. Each hogger ha... | 08/12/1986 |
| 4589061 | Method of varying response fineness in a control system In a system for controlling a servo actuated controlled device, an input signifying the position of displacement of an aircraft stick or similar manipulatable unit is processed to provide a variable gain to the controlled device. In a predetermined range ... | 05/13/1986 |
| 4580210 | Control system having variably biased manipulatable unit In a control system having a manipulatable unit, such as an aircraft stick, which is biased toward a neutral position to provide control "feel", an input which at each instant signifies the position of displacement of the stick from its neutral position i... | 04/01/1986 |
| 4574651 | Control stick unit A device for individually controlling multiple control functions with one hand comprises a base member movable back and forth and a stick member mounted on the base member to move back and forth with it and swing relative to it. The base member has one po... | 03/11/1986 |
| 4561821 | Portable self-erecting surge storage silo A portable self-erecting surge storage silo comprises a bin, a conveyor elevator and a base frame that supports the bin and elevator in operation and for transport. The bin has a pair of long rear legs and a pair of shorter front stub legs. At each side o... | 12/31/1985 |
| 4549123 | Method and an apparatus in tuning a PID-regulator In tuning a regulator (2) of the PID-type of a process (1) in a feed back system where the process and the regulator has a transfer function G(s) in common, a method is proposed for bringing the system into self oscillation for measuring the amplitude and... | 10/22/1985 |
| 4530688 | File folder unfolding machine The machine for unfolding folded file folders has a sucker member rotatable about a horizontal axis, wherein there is a suction inlet that opens to a sucker surface facing away from that axis. Folded file folders are stacked in a magazine with their surfa... | 07/23/1985 |
| 4531080 | Controller A controller for producing electrical control signals has a relatively stationary supporting section providing an upwardly facing hand supporting surface and an upward projection, and has a stick-like control section mounted on a first gimbal joint on top... | 07/23/1985 |
| 4529151 | Method and an apparatus for steering an aerodynamic body having a homing device An aerodynamic body (M) provided with means for steering in response to a body control variable signal has a homing device (1) supplying a measurement signal (&3xb5;m) of the error angle of the body. For intercepting a target (T) a computing un... | 07/16/1985 |
| 4524909 | Apparatus for production of hot tap water Compressed refrigerant from a heat pump compressor flows through a first of three heat exchanger passages that are in mutual heat transfer relationship. Radiator water from a reservoir flows through a second of those passages and back to the reservoir in ... | 06/25/1985 |
| 4513509 | Attitude director indicator The invention relates to an aircraft attitude indicator having a gyro controlled spherical display with delineations of regularly spaced meridians that maintain a vertical orientation and spaced parallels transverse to the meridians, one of which is an eq... | 04/30/1985 |
| 4513529 | Method and means for preventing frost damage to crops A vehicle-mounted machine for preventing frost damage to growing crops comprises an upright shell that defines a plenum chamber, having an upwardly opening air inlet in its top and having plural rearwardly extending tubular heating chambers opening from i... | 04/30/1985 |
| 4491520 | Filter for water jugs A filter for a conventional water jug having a valved tap near the bottom of its cylindrical side wall comprises a pan-like case member that seats in the bottom of the jug and has a filter cartridge removably sealed across its open top. An aperture in the... | 01/01/1985 |
| 4482156 | Target device The invention provides a target device comprising a board-like target member and a housing of low height that serves as a stand for supporting the target member in an upright position of use and encloses it when it is in a horizontal protected position wi... | 11/13/1984 |
| 4480815 | Sealing device for valves A sealing device for valves comprises two co-acting sealing surfaces one of which is arranged facing outwards on a valve body which is pivotally mounted in the valve housing, and the other forming an inwards-facing surface on the seat arranged in the valv... | 11/06/1984 |
| 4465420 | Self-erecting portable paving mix silo A self-erecting silo assembly comprises a horizontally elongated trailer frame and a cylindrical paving mix bin that overlies the frame when in a horizontal transport position, with its front side lowermost and its top end near a front end of the frame. R... | 08/14/1984 |
| 4452064 | Conduit bender with bend angle indicators A tube bender comprising a body having an upwardly opening hook at a front end thereof and having a bottom surface defined by a convexly arcuate bending shoe extending rearwardly from the hook has movable indicators, one for each of a plurality of bend an... | 06/05/1984 |
| 4452568 | Means for limiting rotation speed of a vertical shaft wind turbine Means for limiting rotational speed in a vertical shaft wind turbine (1) having a central hub (3) and spokes (4) extending therefrom. Spokes lying over each other support at their ends turbine blades (6) placed concentrically around the turbine shaft. Eac... | 06/05/1984 |
| 4442695 | Conduit bender with angle indications A tool for bending conduit comprises a body that has a bottom shoe portion which is curved along its length and in which there is a downwardly opening groove that is symmetrical across its width to a plane of symmetry, a tubular handle supporting socket p... | 04/17/1984 |
| 4441820 | Concrete mix surge bin A surge bin for concrete mix comprises an open-topped body having side walls with rear portions that converge towards a gated rear discharge outlet and having a bottom wall curved concentrically to an agitator axis that extends fore-and-aft in the body. A... | 04/10/1984 |