Abstract: Pages of a web site can be selectively altered or added by remote users, by e-mailing updates to a computer configuration that supports the site. The web site comprises hypermedia produced from data organised in a hierarchical file structure with hyperlinks corresponding to the hierarchy of the file structure. An electronic mail message is constructed, addressed to a computer configuration, by clicking on a hyperlink in the web site. The e-mail automatically is provided with the address of the computer configuration together with file location data for placing the web page data into a predetermined position in the hierarchical file structure. The user places web page data corresponding to an update to be included in the web site, into the e-mail. The e-mail is then mailed to the computer configuration where the web page data is included in said hierarchical file structure according to the file location data.

Abstract: A brake pulsing apparatus for use in vehicles having vacuum hydraulic, pneumatic or electric brake systems. The brake pulsing apparatus includes a solenoid valve, for vacuum hydraulic and pneumatic brake systems, or a relay, for electric brake systems, mounted in a vacuum, pressurized air or electrical line that transmits a brake signal to a brake assembly of the vehicle when the brake system is engaged, a pendulum and proximity switch that sense deceleration of the vehicle, and a timer relay connected between the proximity switch and the solenoid valve or relay to repetitively close the valve or open contacts of the relay when the brake system is engaged. The pendulum and timer relay are adjustable to adapt the brake pulsing apparatus to the type of vehicle in which the apparatus is used.