An external request to perform a file operation within a resource manager is received. The resource manager selects a resource manager file identifier that is to be an attribute of a file associated with the file operation. The file operation and the resource manager file identifier are logged in a log entry of a log. Subsequent to logging the log entry, the log entry is accessed during a forward pass through the log, for example, during a roll-forward recovery. If it is determined that the reso...

A mailer type of business form having a carbonizing bond sheet with a carbon spot on one face, and an insert, is constructed so that the carbonizing bond sheet will remain within the outgoing envelope when the insert is removed. This is accomplished even though the carbon spot goes all the way to the end of the carbonizing sheet by providing thumb notches in the outgoing envelope plies and the carbonizing bond, but not in the insert. The carbonizing bond is stream pasted to the interior top ply ...

The stent placement dilation balloon assembly comprises a catheter having a distal end, a distal end portion, and a proximal end, a balloon mounted to, about, and around the distal end portion of the catheter which has at least one opening therein communicating with the interior of the balloon, and, an elastic sleeve positioned about and around the balloon. The sleeve has an at rest diameter which is less than the width of the collapsed balloon if the collapsed balloon was allowed, when deflated...

The frame (9), which is positioned in relation to the tubular element (T), comprises disengagable means (40) for driving the working rod (18) in rotation, and these means can co-operate with at least two regions (26 to 28) of the rod. It is thus possible to work in a plurality of different zones of the tubular element. Application to the sleeve coupling by laser welding of the steam generator tubes of pressurized-water nuclear reactors.

In a shared navigable workspace that is presented at more than one workstation, a region is made private in response to a user request. The user can also indicate the region's level of privacy by indicating levels of access of different users. The private region's contents are displayed only to users that have visual access; a non-informative pattern covers the region's area on the displays of other users. The private region and its contents can be modified only by a user with access to modify. ...

A container is provided for use in a clean environment, thereby allowing functional access to items such as chemicals stored within the container while minimizing contamination to the clean environment. A two-part unitary door includes an access plug and an entry plug. The plugs are separable from one another so that the container may be moved freely within the clean environment while the access plug seals the container from exposure to the clean environment, and the entry plug seals the clean e...

A method of constructing arcuate cement stairs in a pool includes (a) attaching a first arcuate form having a first form radius to the wall of the pool; (b) attaching a second arcuate form having a second form radius smaller than the first form radius to the wall in a plane above the first arcuate form; (c) attaching to the wall of the pool, inwardly of the first form, a first arcuate support band having a radius generally corresponding to the first form radius, the first band remaining in place...

The tubular casing (3) of the working head (1) exhibits two windows, upstream (4) and downstream (5), opposite each one of which there is mounted a deflecting mirror, a partially reflecting mirror (12) and a totally reflecting mirror (14) respectively. A first optical focusing device (8) is mounted in front of the upstream mirror, and a second optical focusing device (13) is mounted between the downstream mirror and the image focus (11) of the upstream optical device. Application to the simultan...

A linear motor comprising first and second motor sections which are movable relative to one another along a motor axis. The first motor section includes a coil support carrying a coil system and the second motor section includes a magnet support carrying at least one pair of magnets which, at least when viewed along the motor axis, are spaced at a distance from one another to form a gap and which are arranged to cooperate with the system of coils across an air gap. The system of coils of the fir...

An electro-optical display panel is disposed within a finder in order to provide an alarm display and/or a display of camera operation state. If lens barriers are closed or a proper exposure control or focal adjustment is not possible, the electro-optical display panel is made in a light intercepting state, and the optical path of the finder is closed. According to a preferred embodiment, the electro-optical display panel is constructed of a plurality of display segments. The display segments ar...