1. An electrical apparatus comprising:
a base configured to be fitted to a holding rail, with opposing coplanar arms, and configured to accommodate a component member of the apparatus and fitted with a locking device having two opposing catches each intended to hook onto a respective arm of the rail, at least one of the two catches being joined to a slide configured to slide in a direction and which can be moved by a manual unlocking member,
wherein
the manual unlocking member comprises a lever pivoted around at least one bearing pin having an axis perpendicular to the sliding direction of the slide, and
the lever cooperates with the slide bar via a cam device guiding through a slide track having an axis parallel to the axis of the bearing pin.
2. The electrical apparatus according to claim 1, wherein the two catches are movable, and are joined to corresponding slides that are symmetrical in relation to a mid-plane of the base, and the lever cooperates with the corresponding slides via two cams and symmetrical axes.
3. The electrical apparatus according to claim 1, wherein the base comprises a rigid back wall and the corresponding slide is moulded with the back wall, and the slide is separated from rigid partitions of the back wall by slits.
4. The electrical apparatus according to claim 1, wherein the lever is held in its unlocking position and its locking position via a force-threshold securing system.
5. The electrical apparatus according to claim 1, further comprising an electronic module removably fastened to the base, the lever having a manoeuvring arm which is unobtrusive in a locking position and projects forward in an unlocking position, in order to cooperate with a rear side of the electronic module to prevent the electronic module to be mounted on the base in the unlocking position and enabling the module to be mounted in the locking position.
6. The electrical apparatus according to claim 1, wherein the holding rail is a top hat rail.
7. The electrical apparatus according to claim 1, wherein the lever is integrated into a cam sliding track and the corresponding slide comprises the axis guided in the sliding track.
8. The electrical apparatus according to claim 7, wherein the axis of the corresponding slide is guided in a slit or groove in the base, and which extends in the sliding direction of the slide.
9. The electrical apparatus according to claim 1, wherein the bearing pin of the lever is located near a, back wall of the base.
10. The electrical apparatus according to claim 9, wherein a return pin spring is associated to one of the corresponding slides.
11. The electrical apparatus according to claim 9, wherein the back wall offers two housing spaces configured to accommodate the opposing coplanar arms of the holding rail and the lever provided with the cam slide tracks projects backwards between the two housing spaces.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A computer implemented method, comprising:
receiving a search query;
determining that the search query is likely issued via a limited data plan;
identifying a plurality of documents that are responsive to the search query;
determining a first data measure for a first document of one or more of the documents;
wherein the first data measure of the first document is based on an amount of data usage in a prior retrieval of the first document; and
ranking the first document relative to other of the documents based at least in part on the first data measure and based at least in part on determining that the search query is likely issued via the limited data plan.
2. The method of claim 1, further comprising:
determining that a second document is similar to the first document;
determining a second data measure for the second document, the second data measure of the second document indicative of an amount of data usage required to load the second document; and
ranking the second document relative to other of the documents based at least in part on the second data measure.
3. The method of claim 2, wherein ranking the first document relative to the other of the documents includes:
ranking the first document relative to the second document based on comparison of the first data measure to the second data measure.
4. The method of claim 3, wherein ranking the first document relative to the second document based on comparison of the first data measure to the second data measure includes:
determining the first data measure is indicative of less data usage than the second data measure; and
ranking the first document more prominently than the second document when the first data measure is indicative of less data usage than the second data measure.
5. The method of claim 1, further comprising determining that the search query is non-navigational, wherein ranking the first document relative to other of the documents based at least in part on the first data measure occurs only when the search query is determined to be non-navigational.
6. The method of claim 1, wherein ranking the first document relative to the other of the documents includes:
determining an initial ranking of the first document, the initial ranking being independent of the first data measure; and
modifying the initial ranking based on the first data measure.
7. The method of claim 6, wherein the initial ranking of the first document is an initial relevance score of the first document.
8. The method of claim 7, wherein the first data measure is proportional to the amount of data usage required to load the first document, and wherein modifying the initial ranking based on the first data measure is based on multiplying the initial relevance score by the reciprocal of the first data measure.
9. The method of claim 1, further comprising:
determining that the search query is non-navigational; and
determining a weighting of the first data measure based on the search query being determined to be non-navigational, the weighting of the first data measure used in ranking the first document relative to other of the documents based at least in part on the first data measure.
10. The method of claim 1, further comprising:
receiving a second search query;
determining that the second search query is navigational; and
preventing determination of rankings of documents responsive to the second search query that are based on data measures of the documents.
11. The method of claim 1, further comprising providing a search result for display that is based on the first document and the ranking of the first document.
12. The method of claim 1, wherein ranking the first document based at least in part on the first data measure and based at least in part on determining that the search query is likely issued via the limited data plan comprises ranking the first document relative to other of the documents based at least in part on the first data measure only when the search query is determined to be likely issued via the limited data plan.
13. The method of claim 1, wherein ranking the first document based at least in part on the first data measure and based at least in part on determining that the search query is likely issued via the limited data comprises determining a likelihood that the search query is issued via the limited data plan, and weighting the first data measure in ranking the first document relative to other of the documents based on the likelihood that the search query is issued via the limited data plan.
14. A system including memory and one or more processors operable to execute instructions stored in the memory, comprising instructions to:
receive a search query issued via a computing device;
determine that the search query is likely issued via a limited data plan;
identify a plurality of documents that are responsive to the search query;
determine a first data measure for a first document of one or more of the documents;
wherein the first data measure of the first document is based on an amount of data usage in a prior retrieval of the first document; and
rank the first document relative to other of the documents based at least in part on the first data measure and based at least in part on determining that the search query is likely issued via the limited data plan.
15. The system of claim 14, wherein the instructions further includes instructions to:
determine that a second document is similar to the first document;
determine a second data measure for the second document, the second data measure of the second document indicative of an amount of data usage required to load the second document; and
rank the second document relative to other of the documents based at least in part on the second data measure.
16. The system of claim 15, wherein the instructions to rank the first document relative to the other of the documents include instructions to:
rank the first document relative to the second document based on comparison of the first data measure to the second data measure.
17. The system of claim 16, wherein the instructions to rank the first document relative to the second document based on comparison of the first data measure to the second data measure include instructions to:
determine the first data measure is indicative of less data usage than the second data measure; and
rank the first document more prominently than the second document when the first data measure is indicative of less data usage than the second data measure.
18. The system of claim 14, wherein the instructions further includes instructions to determine that the search query is non-navigational, wherein the instructions to rank the first document relative to other of the documents based at least in part on the first data measure are executed only when the search query is determined to be non-navigational.
19. The system of claim 14, wherein the instructions to rank the first document relative to the other of the documents include instructions to:
determine an initial ranking of the first document, the initial ranking being independent of the first data measure; and
modify the initial ranking based on the first data measure.
20. The system of claim 14, wherein the instructions further includes instructions to:
determine that the search query is non-navigational; and
determine the weighting of the first data measure based on the search query being determined to be non-navigational, the weighting of the first data measure used to rank the first document relative to other of the documents based at least in part on the first data measure.
21. The system of claim 14, wherein the instructions further includes instructions to provide a search result to the computing device for display that is based on the first document and the ranking of the first document.
22. A non-transitory computer readable storage medium storing computer instructions executable by a processor to perform a method comprising:
receiving a search query;
determining that the search query is likely issued via a limited data plan;
identifying a plurality of documents that are responsive to the search query;
determining a first data measure for a first document of one or more of the documents;
wherein the first data measure of the first document is based on an amount of data usage in a prior retrieval of the first document; and
ranking the first document relative to other of the documents based at least in part on the first data measure and based at least in part on determining that the search query is likely issued via the limited data plan.