Abstract: There is disclosed a method for loading an adapter for a printed circuit board testing device with adapter pins having head ends and contact ends. The adapter pins to be loaded into the adapter are transferred by gravity from at least one main magazine, with their head ends first, into an intermediate magazine. Also, the adapter pins that have been transferred into the intermediate magazine are then transferred by gravity with the contact ends first into the adapter. For simpler and more rapid loading of the adapter with minimal constructional outlay, the adapter pins are transferred from the main magazine head first into the intermediate magazine.

Abstract: An adapter for a printed circuit board testing device, by means of which the test contacts located on the grid can be connected to test points of a printed circuit board to be tested that are located on and/or off grid means of test pins that are received in guide holes in the adapter and each have a pointed contacting section that is directed towards the respective contact point of the printed circuit board and projects from the adapter and an adjacent guidance section that is guided in the associated guide hole of the adapter, is to be designed so that even test pieces in which the test points are relatively close together and/or with large displacements from the grid can be tested. This is done by reducing the cross-section of the guidance section conically or in steps towards the contacting section, and that the cross-section of the guide bores is correspondingly reduced.

Abstract: A test pin for an adapter for connecting test contacts of a printed circuit board testing device that are located on a grid with test points of a test-piece such as a printed circuit board located on and/or off the grid, wherein in order to connect associated test contacts and test points the test pin can be inserted into guide holes at different inclinations in the adapter and has a pointed contact section that is directed towards the respective contact point of the circuit board and projects from the adapter and an adjacent guidance section that is guided in the associated guide hole of the adapter, is designed so that test-pieces with their test points only a relatively short distance apart can be tested. This is achieved by reducing the cross-section of the guidance section conically or stepwise towards the contact section.

Abstract: An adapter (13) for a printed circuit board testing device (6), by means of which test contacts, (7) which are located in a grid, may be connected with test points (3), which are located in and/or beyond the grid, on a printed circuit board (2), which is to be tested, the connection being effected by means of adapter pins (14) which extend through first, second and third guide plates (10, 15 and 16), the third guide plate (16) being arranged between the first and second guide plates (10 and 15). The third guide plate (16) is arranged to be shifted square to the first and second guide plates (10 and 15) and guide holes (20) in the third guide plate (16) are provided at all points of the grid. The holes (20) have a diameter which tolerates a limited amount of clearance for steering of the adapter pins (14) in these guide holes (20).

Abstract: An adapter (175) for a printed circuit board testing apparatus. The adapter serves to connect testing contacts located in the grid to testing points, located in and/or out of grid, of a printed circuit board to be tested, through adapter pins (181). The adapter pins (181) are conically tapered at their ends facing the testing points. The adapter (175) has a first guide plate (176), a second guide plate (177) and a third guide plate (178) lying in between. The first guide plate (176) only has holes (180) only located in the grid. The second guide plate (177) has holes (179) located in the grid, as well as holes (179a) located out of grid.

Abstract: Board-shaped articles are to be stacked in a frame in such a way that they can be introduced into the frame from the same elevation, means being provided to ensure the maintenance of the desired spacing between the individual articles. To that end the spacing elements are supported in the frame in such a manner as to be deflectable and the articles during insertion deflect the spacing elements in the loading direction. The spacing element which is closest to an article already inserted comes into contact with such article.