SU32193A1 - Cement Tester - Google Patents

Description

The proposed device is designed for the Aboriginal determination of the time of the beginning and end of the setting of the cement slurry and is intended to replace the common Vicat device, which requires checking of the cement by hand every 5-15 minutes for many hours.

The proposed device, according to the inventor, is distinguished from similar devices by a simple reliable mechanism and ease of operation.

In the schematic drawing of FIG. 1 shows a longitudinal section of the device and FIG. 2 is the same in cross section.

Frame 7 is placed in wooden case 7; a watch movement is attached to it5. The clockwork gear 4 has the shape of a block and is hung on a chain loop. The minute axis 5 carries a transfer disk b and passes through a clock shaft 7, which has a tubular shape and rotates with its front end in the through-hole of frame 2. In the middle part of the clock shaft there is a T-shaped lever 8. On either side of the lever, indicators 9 and JO are mounted on shaft 7, each equipped with a pointing arrow / 7; Through indicators 9 to 10, laces 12 are thrown, enveloping them in one turn, with reinforcement on them at some point. To the right ends of the laces 12 there are loads 75 and 14, which carry 75 needles. A large load 13 belongs to 406

lies on the smaller indicator 9. The left ends of the laces 12 terminate in rings, on which the needles 16 are attached. These needles have an upper end in the form of a hook, and the lower end is bent by 180 °. The dial is broken for 17-20 hours, depending on the length of the tandem. The first half of the dial also has five-minute divisions. On the back side of the dial, on the circumference around its circumference, is a metallic strip, the curved ends of which form the supports 75. There is a dial on them.

The action of the device follows it. After filling form 19 with the test solution, needles 16 are inserted into it at some distance from each other, then, by connecting these needles to the rings of laces 12, the index arrows are brought to zero by turning the disk 6 to the right, after which the letter is let in. In this case, the lever 8 comes in slow motion around the circumference, and the arrows 7 7 follow it, driven only by loads 75, 14, overcoming the resistance of the solution in the form 19, encountered by the needles 75 and 16, which move vertically in opposite directions. The movement of the small load 14 and the arrow connected with it lasts until the beginning of the seizure, at which the thickness of the solution is determined, is no longer overcome by needles, after which one of the arrows lags behind the lever 8