摘要:
A ratcheting tensioning device for a closed loop chain driven power transmission system of an internal combustion engine consisting of a base tensioner arm (12) and an adjusting tensioner arm (14) which each contact different strands or chain. Optionally, each arm may have a chain guide element for contacting the chain. The two tensioner arms (12, 14) are connected by a link plate (16) that is pivotally mounted to the base tensioner arm (12) in proximity to a first edge (24) of the link plate (16). A channel (52) located in proximity to a second edge (25) of the link plate (16) which allows a pin or sleeved bolt, to be securely attached to the adjusting tensioner arm (14), to traverse along the length of the channel (52) to urge the two tensioner arms (12, 14) toward each other in response to progressively increasing slack in the chain caused by the wearing over time of the components of the power transmission system.
摘要:
The present invention relates to radiation curable coating compositions, to coatings formed by curing these compositions, to processes for preparing such coatings, to articles comprising such coatings, and to antireflective coating systems. An aspect of the invention concerns the application of such coatings to hardcoats or display systems.
摘要:
Optical fiber coatings are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be achieved by several means which include by use of additives, by use of radiation-curable oligomers having higher molecular weight, or by use of coatings having certain thermal properties. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.
摘要:
A timepiece, time display, and method of presenting time information. The timepiece includes clock means for measuring the passage of time in standard units, and maintaining a current value. A visual display is included for displaying one of the standard units of the current value at a time. The time piece further comprises means for selecting one of the standard units and presenting the selected unit of the current value on the visual display. The current value is represented by the position of an indicator within a defined space on the visual display.
摘要:
A Radiation Curable Coating composition, which may be used as an inner primary coating, an outer primary coating, single coats, a matrix, or a buffer resin composition, comprising: A Radiation Curable Coating composition, which may be used as an inner primary coating, an outer primary coating, single coats, a matrix, or a buffer resin composition, comprising at least one radiation-curable oligomer wherein said at least one radiation curable oligomer is a fatty-acid modified epoxy acrylate; at least one ethylenenic unsaturated reactive diluent; wherein said oligomer(s) and diluent(s) are selected from the group that does not include moieties with Urethane chemistry. This composition, when tested, is found to have resistance to thermal degradation as measured by less than 10% weight loss after exposure of cured specimens in a natural convection furnace for 100 hours at 180° C.
摘要:
A ratcheting tensioning device for a closed loop chain driven power transmission system of an internal combustion engine consisting of a base tensioner arm (12) and an adjusting tensioner arm (14) which each contact different strands or chain. Optionally, each arm may have a chain guide element for contacting the chain. The two tensioner arms (12, 14) are connected by a link plate (16) that is pivotally mounted to the base tensioner arm (12) in proximity to a first edge (24) of the link plate (16). A channel (52) located in proximity to a second edge (25) of the link plate (16) which allows a pin or sleeved bolt, to be securely attached to the adjusting tensioner arm (14), to traverse along the length of the channel (52) to urge the two tensioner arms (12, 14) toward each other in response to progressively increasing slack in the chain caused by the wearing over time of the components of the power transmission system.
摘要:
A method for shaping partially enclosed structures such as pipes, the method comprising: filling the structure with ERF, applying an electrical field to the ERF to increase its viscosity, shaping the structure, removing the field and removing the ERF from the structure.
摘要:
Safety equipment comprising a polymer composition comprising: an aromatic polyamide, and above 10 wt. %, based on the total weight of the polymer composition, of at least one functionalized polyolefin impact modifier having a glass transition temperature below −10° C. Polymer composition comprising: an aromatic polyamide, and above 10 wt. %, based on the total weight of the polymer composition, of at least one functionalized polyolefin impact modifier having a glass transition temperature below −10° C.
摘要:
An accessory such as a welding helmet is attached to a protective cap by means of a continuous band mounted to the inside of the accessory. The band is in the form of two pieces having overlapping ends which are adjustably connected together to accommodate different size protective caps. A hook structure may be provided on the band for hooking around the lower edge of the protective cap.