Abstract: A precision tabletop for scientific instrumentation is described. The tabletop may be manufactured from as few as two pieces of material, include a honeycomb stiffening and vibration damping structure, be sealed from fluid ingress, include interior reinforcing structures, and permit accurate registration of machined features on all sides of the tabletop.

Abstract: A precision tabletop for scientific instrumentation is described. The tabletop may be manufactured from as few as two pieces of material, include a honeycomb stiffening and vibration damping structure, be sealed from fluid ingress, include interior reinforcing structures, and permit accurate registration of machined features on all sides of the tabletop.

Abstract: An anchor assembly is provided that permits adjustment of the brake shoes in a drum brake to account for wear. The assembly includes first and second adjuster shafts each having a plurality of threads and first and second pilot connectors. The pilot connectors each have a plurality of threads in engagement with the threads of a corresponding adjuster shaft. The pilot connectors each engage one end of a corresponding brake shoe. Rotation of each adjuster shaft causes longitudinal movement of a corresponding pilot connector in engagement with a corresponding brake shoe along an axis to adjust a position of the brake shoe.

Abstract: An anchor assembly is provided that permits adjustment of the brake shoes in a drum brake to account for wear. The assembly includes first and second adjuster shafts each having a plurality of threads and first and second pilot connectors. The pilot connectors each have a plurality of threads in engagement with the threads of a corresponding adjuster shaft. The pilot connectors each engage one end of a corresponding brake shoe. Rotation of each adjuster shaft causes longitudinal movement of a corresponding pilot connector in engagement with a corresponding brake shoe along an axis to adjust a position of the brake shoe.

Abstract: A vehicle suspension having a trailing arm, an air spring assembly and a spacer. The spacer is removably located between the trailing arm and the air spring assembly. Either or both of the top surface or the bottom surface of the spacer are tapered.

Abstract: A suspension is provided that eliminates welded connections between the suspension control arm and the axle. The suspension includes a control arm coupled to a vehicle frame. The control arm has a first sleeve, through which an axle is received. The first sleeve of the control arm has a radially inner surface that tapers. The suspension further includes a second sleeve configured to be received within the first sleeve, about the axle. The second sleeve has a radially outer surface that tapers complementary to the radially surface of the first sleeve. As the second sleeve is urged inward within the first sleeve, the second sleeve clamps down upon the axle.

Abstract: A vehicle suspension having a trailing arm, an air spring assembly and a spacer. The spacer is removably located between the trailing arm and the air spring assembly. Either or both of the top surface or the bottom surface of the spacer are tapered.

Abstract: A trailing arm has a first side portion with an axle recess and a second side portion with an axle recess. An upper portion of the trailing arm is defined at least partially by overlapping portions of the first side portion and the second side portion. The overlapping portions define a weld aperture in the upper portion and a suspension aperture.

Abstract: A suspension is provided that eliminates welded connections between the suspension control arm and the axle. The suspension includes a control arm coupled to a vehicle frame. The control arm has a first sleeve, through which an axle is received. The first sleeve of the control arm has a radially inner surface that tapers. The suspension further includes a second sleeve configured to be received within the first sleeve, about the axle. The second sleeve has a radially outer surface that tapers complementary to the radially surface of the first sleeve. As the second sleeve is urged inward within the first sleeve, the second sleeve clamps down upon the axle.

Abstract: A device for adjusting the position of suspension control arm and, consequently, wheel caster is provided. The device includes a fastener that couples a suspension control arm between a pair of support members in a vehicle frame. Shim packs are supported on the fastener on either side of the control arm between the control arm and the frame support members. The shim packs include shims having open-ended slots for easy addition or removal. Each shim pack may further include a pair of ring shaped members disposed about the fastener, and coupled to the shims of its respective shim pack. The shims are held together using a coupling element such as a cotter pin, however, to prevent the shims from becoming dislodged. The position of the control arm may be adjusted by swapping shims between the first and second shim packs.

Abstract: A device for adjusting the position of suspension control arm and, consequently, wheel caster is provided. The device includes a fastener that couples a suspension control arm between a pair of support members in a vehicle frame. Shim packs are supported on the fastener on either side of the control arm between the control arm and the frame support members. The shim packs include shims having open-ended slots for easy addition or removal. Each shim pack may further include a pair of ring shaped members disposed about the fastener, and coupled to the shims of its respective shim pack. The shims are held together using a coupling element such as a cotter pin, however, to prevent the shims from becoming dislodged. The position of the control arm may be adjusted by swapping shims between the first and second shim packs.

Abstract: The present invention relates to improvements in methods of DNA sequencing. In particular, the invention relates to the elimination of stops or pauses in chain termination methods of DNA sequencing by the addition of nitrogen-containing organic compounds such as betaine, trimethylamine N-oxide and dimethylglycine. The invention also provides for DNA sequencing kits containing these compounds. The invention also provides for improvements in other laboratory procedures using DNA polymerases, such as polymerase chain reaction (PCR).

Abstract: The present invention relates to improvements in methods of DNA sequencing. In particular, the invention relates to the elimination of stops or pauses in chain termination methods of DNA sequencing by the addition of nitrogen-containing organic compounds such as betaine, trimethylamine N-oxide and dimethylglycine. The invention also provides for DNA sequencing kits containing these compounds. The invention also provides for improvements in other laboratory procedures using DNA polymerases, such as polymerase chain reaction (PCR).