Abstract: Firearm sight systems have an elongated mounting rail including a plurality of transverse bars separated by intervening transverse mounting location channels extending from a rearmost channel to a forwardmost channel, the rail having an elongated upper surface, the rail defining a pocket below the upper surface and at least in part forward of the rearmost channel, and a sight arm pivotally connected to the rail and movable between an elevated position angularly offset from the upper surface of the rail and a stowed position in which the sight arm occupies the pocket. At least a forward portion of the sight arm may be entirely below the upper surface of the rail when in the stowed position. The entire sight arm may be entirely below the upper surface of the rail when in the stowed position. The sight arm may pivot on a pivot axis below the upper surface of the rail.

Abstract: Firearms have an alignment element configured to connect to the barrel with the threaded muzzle portion exposed forward of the alignment element, the alignment element having a lock element movable between a release position and an engaged position, a muzzle device having internal threads configured to mate with the threaded portion of the barrel, the muzzle device defining a lock channel adapted to receive the lock element in the engaged position, the lock channel including wall portions configured to contact the lock element in the engaged position to prevent rotation of the muzzle device, and the lock element in the release position being clear of the lock channel to enable the muzzle device to rotate for removal from the threaded muzzle portion. The alignment element may define a first bore portion configured to closely receive a selected barrel portion immediately aft of the shoulder surface.

Abstract: A floor stripping machine for removing floor covering from a floor surface includes a base, a motor secured to the base, a rear wheel arrangement driven by the motor, and a blade assembly. The blade assembly is secured to a remaining portion of the machine and has a removable clamp with a cutter. The machine has a forward downward sloping angle, a low center of gravity, and is obstruction free for mounting by an operator. The blade assembly may include a dovetail for a variety of tool heads. One example of a blade has a base flange, a pair of side flanges with forward leaning angles, and a hook in between each side flange and the base flange.

Abstract: A rotary drum dryer includes a shell, an apertured rotary drum disposed within the shell and positioned to define a plenum between an interior surface of the shell and an exterior surface of the rotary drum, the plenum being divided into a plurality of zones by at least one separator plate disposed in the shell, and a plurality of drying air inlet nozzles disposed along the shell, each of the plurality of drying air inlet nozzles being positioned to direct drying air into a corresponding one of the plurality of zones.

Abstract: An extendable auger having a base section, an extension section, an extension fixation assembly and a cover. The base section includes a base section central shaft having a hollow core and a base section helical member. The extension section is positionable over the base section and includes an extension section central shaft having a hollow core and an extension section helical member. The extension fixation assembly includes a base support wall positioned at the top end of the base section central shaft and an extension abutment wall positioned at the bottom end of the extension section central shaft. The base support wall is superposable to the extension abutment wall and securable thereagainst. The extension fixation assembly further includes a fastening assembly configured to removably secure the extension section to the base section, when the base support wall and the extension abutment wall are superposed to one another.

Abstract: Firearms have an alignment element configured to connect to the barrel with the threaded muzzle portion exposed forward of the alignment element, the alignment element having a lock element movable between a release position and an engaged position, a muzzle device having internal threads configured to mate with the threaded portion of the barrel, the muzzle device defining a lock channel adapted to receive the lock element in the engaged position, the lock channel including wall portions configured to contact the lock element in the engaged position to prevent rotation of the muzzle device, and the lock element in the release position being clear of the lock channel to enable the muzzle device to rotate for removal from the threaded muzzle portion. The alignment element may define a first bore portion configured to closely receive a selected barrel portion immediately aft of the shoulder surface.

Abstract: A body protector includes a plurality of outer left and right front side pad members with a flexible break being formed between adjacent outer left and right front side pad members. A plurality of inner left and right front side pad members is disposed behind said plurality of outer left and right front side pad members for overlapping the respective flexible breaks formed in the plurality of outer left and right front side pad members. A plurality of outer left and right rear side pad members is provided with a flexible break being formed between adjacent outer left and right rear side pad members and a plurality of inner left and right rear side pad members is disposed behind said plurality of outer left rear side pad members for overlapping the respective flexible breaks formed in the plurality of outer left and right rear side pad members.

Abstract: A bale wrapping apparatus configurable between a single bale wrapping configuration and an inline bale wrapping configuration. The bale wrapping apparatus comprises a bale wrapping support assembly including support rollers spaced apart from one another to drive a bale in rotation along a rotation axis, when the bale wrapping apparatus is configured in the single bale wrapping configuration; and a longitudinal bale support configurable between an extended configuration where it extends above the support rollers and a retracted configuration where it extends away from the support rollers. The longitudinal bale support is positioned in the retracted configuration when the bale wrapping apparatus is configured in the single bale wrapping configuration and is configured in the extended configuration when the bale wrapping apparatus is configured in the inline bale wrapping configuration.

Abstract: An apparatus is for collecting and transporting bales. The apparatus includes a transport assembly and a grasping assembly operatively connected thereto. The transport assembly includes a bale loading platform extending above and mounted to a chassis. The bale loading platform comprises at least one bale conveying section in including a bale conveying mechanism. The grasping assembly includes a mechanical arm having a prehension end effector engageable with the bales. The grasping assembly is configurable between a bale engagement configuration for engaging a corresponding one of the bales laying on the ground, a bale capture configuration for capturing and lifting the corresponding one of the bales off the ground and a bale release configuration for releasing the corresponding one of the bales onto the bale loading platform and comprises a movement absorption mechanism operative to substantially cancel the forward displacement of the apparatus during the capture of the bales.

Abstract: A pulley block may include an alpha pulley block including an alpha connector, a beta pulley block including a beta connector, wherein the alpha pulley block is coupled to the beta pulley block when the alpha connector is coupled to the beta connector. At least one of the alpha connector and the beta connector may comprise magnets.

Abstract: A control device is described for rollers of a trailer. Belt supports and belt-end supports attach to the trailer, which has rollers for unloading cargo. The belt is over each of the belt supports and under each of the rollers. A belt tensioner tensions the belt so as to brake the rollers.

Abstract: A firearm sight system is provided having a mounting rail with an upper surface. The mounting rail defines a pocket below the upper surface. A sight arm is pivotally connected to the rail and movable between an elevated position angularly offset from the upper surface of the rail and a stowed position in which the sight arm occupies the pocket and does not protrude above the upper surface of the rail.

Abstract: The instant invention provides an economical flow-through method for determining amount of target proteins in a sample. An antibody preparation (whether polyclonal or monoclonal, or any equivalent specific binding agent) is used to capture and thus enrich a specific monitor peptide (a specific peptide fragment of a protein to be quantitated in a proteolytic digest of a complex protein sample) and an internal standard peptide (the same chemical structure but including stable isotope labels). Upon elution into a suitable mass spectrometer, the natural (sample derived) and internal standard (isotope labeled) peptides are quantitated, and their measured abundance ratio used to calculate the abundance of the monitor peptide, and its parent protein, in the initial sample.

Abstract: A walk-behind floor scraper machine for removing floor covering from a floor surface is disclosed. In one aspect, the machine includes a base frame, an electric motor secured to the base frame, and a scraper assembly movably secured to the base frame and driven by the electric motor. The machine also includes a rear wheel arrangement including a pair of wheels having a rotational axis. In one aspect, the machine includes a hydraulic circuit with a hydraulic pump driven by the electric motor and a hydraulic motor powered by the hydraulic pump. The hydraulic motor has a drive axle coupled to the wheels, wherein the drive axle is coaxially aligned with the rotational axis. In one aspect, the machine can include a hydraulic tank-frame integral to the chassis of the machine that simultaneously stores hydraulic fluid and structurally supports the hydraulic motor.

Abstract: A pressure measurement device is provided. The pressure measurement device includes a pressure gauge having a hermetically sealed cavity. The cavity is filled with pressure transferring media that includes a first material and a compensator material. The first material has a first coefficient of thermal expansion and the compensator material has a second coefficient of thermal expansion that is lower than the first coefficient of thermal expansion. The pressure measurement device includes a pressure reading mechanism coupled to the pressure gauge and operative to convert a displacement of the pressure gauge to a pressure measurement reading.

Abstract: A floor stripping machine for removing floor covering from a floor surface includes a base, a motor secured to the base, a rear wheel arrangement driven by the motor, and a blade assembly. The blade assembly is secured to a remaining portion of the machine and has a removable clamp with a cutter. The machine has a forward downward sloping angle, a low center of gravity, and is obstruction free for mounting by an operator. The blade assembly may include a dovetail for a variety of tool heads. One example of a blade has a base flange, a pair of side flanges with forward leaning angles, and a hook in between each side flange and the base flange.

Abstract: Method and apparatus for generating asymmetric high-voltage waveforms with near-rectangular profiles. The method comprises producing selected low-frequency components of the Fourier series for a rectangular waveform explicitly and adding them to the amplified residual of lower-amplitude near-rectangular waveform upon filtering out certain frequencies.