Abstract: A bicycle rear sprocket assembly comprises at least one sprocket. The at least one sprocket includes at least ten internal spline teeth configured to engage with a bicycle hub assembly.

Abstract: A bicycle rear sprocket assembly comprises at least one sprocket having a total tooth number that is equal to or larger than 15. The at least one sprocket includes at least ten internal spline teeth configured to engage with a bicycle hub assembly.

Abstract: A compressor includes a casing and a metallic coating. The casing includes a low-pressure casing part covering a low-pressure space and a high-pressure casing part covering a high-pressure space. The metallic coating is formed at least on a part of an outer surface of the casing. The metallic coating includes a low-pressure part coating formed in the low-pressure casing part, a high-pressure part coating formed in the high-pressure casing part, and a welded part coating formed in a welded part. At least either the average thickness of the low-pressure part coating or the average thickness of the welded part coating is greater than the average thickness of the high-pressure part coating.

Abstract: A go/no-go gauge for hole tolerance measurement incorporates a handle, a first pin having a first diameter extending from a first end of the handle and a second pin having a second diameter extending from a second end of the handle. A force measurement element is disposed between the ends of the handle and configured to provide an indication upon exceeding a predetermined force level when attempting to insert one of the pins into a hole.

Abstract: The invention is directed to tools and methods for matching a first ring to a second ring. The apparatus comprises a plurality of contour bands, each contour band having a contoured portion that differs from the contoured portion of the other bands. Preferably the bands differ by increments such that a wide range of matching can be performed to identify a correct contour, which is then provided to a manufacturer for creation of the matching band.

Abstract: A method and a device are for determining the compatibility between an adapter, which is to be inserted into a third-party joint ball type to be replaced, and an outer cone of a prosthesis shaft of a modular joint prosthesis, which is inserted in the femur during revision surgery. A test body of a set of test bodies having various inner cones, comprising a marker and a length measuring scale, is fitted onto the outer cone of the shaft of the joint prosthesis and, subsequently, the adapter fitting on the outer cone of the joint prosthesis is determined by successively testing the inner cones for compliance with an admissible minimum distance between the front faces of the outer cone of the shaft of the joint prosthesis and the inner cone and for compliance with an admissible predefined insertion depth of the outer cone of the shaft of the joint prosthesis in the inner cone of the test body.

Abstract: A portable device for measuring a deflection of a surface, comprising an elongate frame having a first end and a second end and a first datum surface, a first removable reference support adjacent the first end, a second removable reference support adjacent the second end, a deflection gauge attached to the elongate frame between the first removable reference support and the second removable reference support, and wherein the deflection gauge engages and measures a deflection of the surface relative to the first removable reference support and the second removable reference support.

Abstract: A belt rib wear gauge comprising a body, an elongate member having a length and extending from the body, the elongate member having an arcuate surface, the elongate member further comprising a tactile surface cooperatively disposed with respect to the arcuate surface, and the arcuate surface having a predetermined radial dimension wherein engagement of the elongate member within a belt groove and the position of the tactile surface relative to a datum plane at a tip of belt ribs disposed immediately adjacent to the belt groove indicates a state of wear of the belt ribs.

Abstract: A belt rib wear gauge comprising a body, an elongate member having a length and extending from the body, the elongate member having an arcuate surface, the elongate member further comprising a tactile surface cooperatively disposed with respect to the arcuate surface, and the arcuate surface having a predetermined radial dimension wherein engagement of the elongate member within a belt groove and the position of the tactile surface relative to a datum plane at a tip of belt ribs disposed immediately adjacent to the belt groove indicates a state of wear of the belt ribs.

Abstract: A device and method to sort high security lock pins to characterize their length, wedge direction, and slot position comprises a lock pin decoding body containing lock pin cavities that receive high security lock pins and orient them in a uniform way by fitting a tab on the upper end of the lock pins in a notch, thereby revealing whether the lock pins have a slot positioned in the “left”, “center” or “right” positions, which can be read from indicia on the lock pin decoding body, and further revealing if the lock pins have a “fore” or “aft” facing wedge, which can also be read from indicia on the lock pin decoding body.

Abstract: A device and method for determining compliance with building construction codes comprises a block of material with a plurality of planar measuring surfaces separated by appropriate distances that are representative of a maximum or minimum gap space between a door and an adjacent structure, as permitted by industry standards. The appropriate measuring surfaces are inserted in the gap opening between the door and adjacent structure to be tested and quickly and easily indicate whether the gap meets building construction codes. The device functions as one tool to quickly check compliance of all gap openings related to door installations without hindrance from door installation hardware.

Abstract: An apparatus is provided for measuring deformation of a surface of a pipe. The apparatus has a central portion to which a detector section is mounted. At each side, guides are connected to the housing via arms. The housing has a platform below which an inverted U-shaped section is provided, with the platform forming the base of the U. At the rear of this section a wheel is rotatably mounted on an axle. Forward of this, and also within the U-shaped section is mounted a further U-shaped section. This is pivotally mounted at its rear end by means of a pin such that its forward end is free to move vertically. The forward end has mounted within it a further wheel on an axle. Projecting upwards from the second U-shaped section is a rod which passes through a hole in platform. Around the lower portion of the rod is provided a spring which biases the detector downwards and away from the platform. The rod moves vertically with the wheel as it passes over bumps in the pipe.

Abstract: A tool for measuring compliance with building construction codes comprises at least one indentation having a diameter that is representative of a maximum or minimum diameter of a handrail or grab bar, as permitted by code standards. The indentation is positioned adjacent a handrail or grab bar to determine compliance with relevant code standards. The tool may also include a tab positioned adjacent The indentation to simultaneously measure the distance a grab bar or handrail is spaced from a wall, and the diameter of the handrail or grab bar.

Abstract: Device for determining the size of a blind void comprises an elongated rigid rod, an actuator slidably movable relative to the rod, the actuator having a distal end for insertion into the void, a distal flexible element fixed at one end thereof to the rod, a second flexible element fixed at one end thereof to the rod and proximally removed from the distal flexible element. Movement of the actuator is operative to cause equal movements of the distal end portions of the distal and proximal elements, to cause the distal element to bulge outwardly from the rod to engage interior walls of the void and to cause the proximal element to bulge outwardly in a configuration duplicative of the distal element bulge, the proximal element being outside of the void and subject to observation.

Abstract: Ensuring that the correct wheel bearing is installed in the wheel assembly of an aircraft. A plastic mold is designed to hold only one size of wheel bearing. The mold is labeled with the wheel bearing serial number and the corresponding aircraft model number. Because only one size of wheel bearing fits properly in the mold, it facilitates identification and use of the correct size wheel bearing in the aircraft wheel assembly. The mold can be used to ship wheel bearings to air carriers and to store wheel bearings before installation into aircraft wheel assemblies. The mold also offers protection for the wheel bearing from contamination or damage.

Abstract: A feeler gage including a pin member having a first end and an opposing end with a gage connected to the opposing end of the pin member. The gage has a first end connected to the pin and a free end projecting past a peripheral dimension of the pin. An indicator is formed on the first end of the pin member in alignment with a longitudinal axis of the gage for determining a position of the gage upon rotation of the pin member. The gage is of a predetermined thickness and is aligned with the indicator formed at the first end of the pin member. Rotation of the pin member correspondingly rotates the gage of the pin member. If the gage rotates freely, then a gap is determined to be present in the area where the gage is rotated through. If the gage does not rotate freely, then no gap exists.

Abstract: Ensuring that the correct wheel bearing is installed in the wheel assembly of an aircraft. A plastic mold is designed to hold only one size of wheel bearing. The mold is labeled with the wheel bearing serial number and the corresponding aircraft model number. Because only one size of wheel bearing fits properly in the mold, it facilitates identification and use of the correct size wheel bearing in the aircraft wheel assembly. The mold can be used to ship wheel bearings to air carriers and to store wheel bearings before installation into aircraft wheel assemblies. The mold also offers protection for the wheel bearing from contamination or damage.

Abstract: Ensuring that the correct wheel bearing is installed in the wheel assembly of an aircraft. A plastic mold is designed to hold only one size of wheel bearing. The mold is labeled with the wheel bearing serial number and the corresponding aircraft model number. Because only one size of wheel bearing fits properly in the mold, it facilitates identification and use of the correct size wheel bearing in the aircraft wheel assembly. The mold can be used to ship wheel bearings to air carriers and to store wheel bearings before installation into aircraft wheel assemblies. The mold also offers protection for the wheel bearing from contamination or damage.

Abstract: A tool for inspecting and verifying weld beads in a pipeline includes a plate-like structure which has a surface and edges adapted for inspecting and verifying various weld bead attributes. The surface is imprinted with several identification marks, including for example, wall thicknesses and ratios of weld bead width to wall thickness. The tool can be used to verify weld bead convexity, weld bead concavity, and weld bead width for many different wall thicknesses. The tool is capable of verifying weld bead width and axial alignment of successive sections of pipe along the pipeline. All verifications and measurements are visual and tactile, without need for complex machinery or calculations, and can be accomplished with a single, lightweight tool. Additionally, a single tool can be used to verify weld beads for a variety of different pipe thicknesses.

Abstract: Ensuring that the correct wheel bearing is installed in the wheel assembly of an aircraft. A plastic mold is designed to hold only one size of wheel bearing. The mold is labeled with the wheel bearing serial number and the corresponding aircraft model number. Because only one size of wheel bearing fits properly in the mold, it facilitates identification and use of the correct size wheel bearing in the aircraft wheel assembly. The mold can be used to ship wheel bearings to air carriers and to store wheel bearings before installation into aircraft wheel assemblies. The mold also offers protection for the wheel bearing from contamination or damage.

Abstract: A thread ring gauge holder that is used with a thread ring gauge to eliminate the variance in applied torque from different people using the thread ring gauge. This device allows the thread ring gauge to be protected from an excessive amount of torque and from a premature false reading from applying too little torque from a wide variety of users. The device can be used together with a variety of thread ring gauges and is made up of a ring gauge adapter, a ratchet drive, a ratchet gear, a protective housing that accommodates a ball plunger and a pawl device and a snap ring to hold the thread ring gauge holder together in place with the thread ring gauge. The ball plunger and pawl act as a torque setting device to control the amount of torque that is applied to the thread ring gauge, thereby insuring repeatability and consistency.

Abstract: A calibration standard for calibrating an eddy current inspection probe sized and shaped to inspect a preselected non-planar feature of a manufactured part. The feature extends in a longitudinal direction and in a lateral direction. Further, the feature has an end profile as viewed in the longitudinal direction having a substantially invariant shape and orientation. The calibration standard includes a body having a non-planar surface extending in a longitudinal direction and in a lateral direction. The standard also has an end profile as viewed in the longitudinal direction of the surface substantially identical to the profile of the feature. The surface of the body has an elongate narrow opening extending into the body substantially normal to the surface and traversing the surface of the body at a substantially constant angle with respect to the longitudinal direction of the surface as viewed normal to the surface.