1. Universal blowout preventers for oil and gas deposits with high H₂S and CO₂

   • N. G. Kurbanov
   • B. O. Frenkel'
   • N. M. Barkhudarov

   New Machines and Equipment Pages: 463 - 464

2. Bag filter with impulse blowing for vacuum systems

   • Yu. I. Gromov
   • R. A. Tupitsyn

   New Machines and Equipment Pages: 465 - 466

3. Plastic heat exchanger for acgressive or contaminated heat-transfer media

   • F. Trish
   • V. I. Kochergin
   • A. É. Chebotarevskii

   New Machines and Equipment Pages: 467 - 468

4. Examination of the operation of disk springs of direct-flow gate valves for gusher fittings

   • I. K. Karaev
   • B. M. Akhmedov
   • M. K. Kurbanov

   New Machines and Equipment Pages: 468 - 471

5. Calculation of spring expanders of graphite-fluoroplastic piston rings

   • A. S. Kopelevich
   • I. I. Novikov
   • V. P. Zakharenko

   New Machines and Equipment Pages: 472 - 474

6. Determination of optimum geometrical parameters of stators of turbine expansion engines

   • A. N. Sherstyuk
   • A. B. Davydov
   • M. Yu. Vasil'ev

   New Machines and Equipment Pages: 475 - 479

7. Intensification of heat exchange in flow of anomalously viscous media in an annular channel with helical ribbing

   • A. I. Mumladze
   • G. R. Khalitova
   • Yu. G. Nazmeev

   New Machines and Equipment Pages: 479 - 481

8. Experimental study of cryogenic gas engines with step-by-step regulation of refrigerating capacity

   • A. V. Smirnov
   • V. M. Myasnikov
   • Yu. O. Prusman

   New Machines and Equipment Pages: 482 - 484

9. Investigation of dynamic loads in a pipeline cooled by liquid cryogenic products

   • A. B. Bulanov
   • V. S. Irevli
   • S. L. Simkhovich

   New Machines and Equipment Pages: 485 - 488

10. Investigation of seal hermeticity in pipeline equipment

    • S. V. Seinov
    • V. A. Kalashnikov
    • M. B. Zhitomirskii

    New Machines and Equipment Pages: 489 - 491

11. Estimation of equipment reliability for the wet granulation of industrial carbon

    • Yu. I. Vladimirov
    • N. G. Lyakh
    • A. M. Blinkov

    New Machines and Equipment Pages: 491 - 493

12. Corrosion resistance of materials in production of synthetic acids

    • Yu. L. Kosmenko
    • I. I. Baidin

    New Materials and Corrosion Control Pages: 494 - 495

13. Installation for corrosion tests of bimetals

    • V. A. Levchenko
    • A. N. Kuzyukov

    New Materials and Corrosion Control Pages: 496 - 498

14. Improving the effectiveness of face milling

    • V. A. Sletkov
    • V. N. Kovalev
    • V. V. Dotsenko

    Equipment-Manufacturing Technology Pages: 499 - 501

15. Nondestructive hardness testing of malleable cast iron castings

    • L. A. Cherezov
    • V. B. Nikolaev
    • G. G. Yurgens

    Equipment-Manufacturing Technology Pages: 502 - 504

16. Increasing the accuracy of shells and blanks for flanges by plastic tension

    • V. A. Bubnov

    Equipment-Manufacturing Technology Pages: 504 - 507

17. Properties of steels used in petroleum engineering

    • G. M. Sorokin
    • S. N. Bobrov
    • V. V. Evdokimov

    Equipment-Manufacturing Technology Pages: 507 - 510

18. Machine for bending flanges of strip

    • V. T. Bondarenko

    Equipment-Manufacturing Technology Pages: 510 - 513

19. Chemical resistance of modified ÉP-0055 patching compound

    • T. T. Kotova
    • F. A. Trifonov
    • V. A. Burak

    Equipment-Manufacturing Technology Pages: 513 - 514

20. Procedure for assessing the metal requirement of drilling engines

    • E. I. Ishemguzhin
    • V. V. Shaidakov
    • I. Ya. Val'dman

    Organization and Economics of Production Pages: 515 - 516