... machine-driving shaft.Sclater Chapter 3 5/3/01 10:22 AM Page 87 66 Fig. 3 In another type of action, the forward and return strokes are accomplished by a suitable mechanism, while the raising and ... photoemitter and photoreceiver.Sclater Chapter 3 5/3/01 10:23 AM Page 90 64 Sclater Chapter 3 5/3/01 10:20 AM Page 64 81Fig. 19 A paste belt applicator passes around thepulley in a pastepot and slides ... motion. The bearings Care supported by the frame as is the driving shaft D.Sclater Chapter 3 5/3/01 10:20 AM Page 66 85Sclater Chapter 3 5/3/01 10:22 AM Page 85 AUTOMATIC SAFETY MECHANISMSFOR...
... approximates part of the path of aroller.Fig. 6 An intermittent drive with a cylindrical lock. Shortly before and after the engagement of two teeth with driving pin d at the end ofthe dwell period, ... isbehind the driver. AT the end of the dwell period, pin ccontacts the mutilated tooth and turns the driven gear onecircular pitch. Then, the full-width tooth engages thecutout d, and the driven ... number of lobes L3 and L4onthe gears 3 and 4. In the drawings, L3= 2 and L4= 3. Any two lobes on the twogears (i.e., any two lobes of which one ison one gear and the other on the...
... choice. It is the most ver-satile and practical configuration for meet-ing double-crank motion requirements. 166 Sclater Chapter 5 5/3/01 11:47 AM Page 166 A virtually unexplored area of mecha-nism ... slides, friction drives, and gears.Fig. 1 An axial screw with a rack-actuated gear (A) and an articulated driving rod (B)are both irreversible movements, i.e., the driver must always drive.Fig. ... turns.Dynamic and static balancing is simplifiedwhen an expanding wheel is attached to anonexpanding main wheel. As a pulley, anexpanding wheel can have a steel bandfastened to only one section and...
... their seats.Sclater Chapter6 5/3/01 12:25 PM Page 191 CHAPTER 6 SPRING, BELLOW,FLEXURE, SCREW, AND BALL DEVICESSclater Chapter6 5/3/01 12:24 PM Page 173 installed and integrated into a ... balanced pressure. The screw in (B) retains and drives a dowel pin for locking purposes. A right- and left-handed shaft (C) actuates a press.Sclater Chapter6 5/3/01 12:25 PM Page 192 Do you need ... and other types of screws can provide slow and fast feeds, minute adjustments, and strong clamping action.Rapid and slow feed. With left- and right-handthreads, slide motion with the nut locked...
... center at01, arc 5 -6 with center at 04, arc 7-1 withcenter at 01, and the straight lines 2-3 and 6- 7. The method calls for a combinationof drilling, lathe turning, and templatefiling.First, ... Belt drives,on the other hand, have little slippage orfrictional losses, and chain has none—itmaintains a fixed phase relationshipbetween the input and output shafts.Belt DrivesBelt drives ... chain drive and then is fedinto the cutter with the proper motion.During the dwells of the rocker, forexample, a dwell is cut into the cam.Sclater Chapter 7 5/3/01 12:33 PM Page 2 06 CHAPTER...
... constant angle.Sclater Chapter 9 5/3/01 12:57 PM Page 317 3 36 LINKAGES FOR BAND CLUTCHES AND BRAKESFig. 1 An outside bandclutch operated by a roller and cone.Fig. 2 An outside bandclutch made ... Variable-torque drag brake . . . Fig. 2 . . . holds tension constant on tape Fig. 3 Constant-torque screwdriverSclater Chapter 9 5/3/01 12: 56 PM Page 3 06 307SPRING BANDS GRIP TIGHTLY TO DRIVEOVERRUNNING ... requirements ofMIL-E-5400, class 3 and MILK-39 26 specifications.Applications were seen in counter and reset switches and controls for machines and machine tools, radar systems, and precision potentiometers.Eight-Joint...
... machinery and protectit and its operator.Actuators Linear mechanical switchesSclater Chapter 10 5/3/01 1:08 PM Page 3 56 CHAPTER 10TORQUE-LIMITING,TENSIONING, AND GOVERNING DEVICESSclater Chapter ... Chapter 10 5/3/01 1:07 PM Page 351 360 Limit Switches in Machinery (continued )Sclater Chapter 10 5/3/01 1:08 PM Page 360 352DRIVES FOR CONTROLLING TENSIONMechanical, electrical, and hydraulic ... devices.The hydraulic operation is exactly thesame as that described for the hydraulicdrives.Sclater Chapter 10 5/3/01 1:08 PM Page 353 A band brake intended to obtain afriction drag will give...
... CHAPTER 11PNEUMATIC AND HYDRAULIC MACHINE AND MECHANISMCONTROLSclater Chapter 11 5/3/01 1:15 PM Page 369 375Fig. 8 The housing of the Hele-Shaw-Beachum ... components and linkages. The nested capsule (Fig. 4) requiresless space and can be designed to withstand large external overpressures without damage.Sclater Chapter 11 5/3/01 1: 16 PM Page 380 ... An instrument coupling.Fig. 5 A crankcase oil drain plug.Fig. 6 A non-rattling door latch.Fig. 2 Tension devices.Sclater Chapter 11 5/3/01 1: 16 PM Page 387 Fig. 4 This cut-off machine has...
... λopt= 2 .61 00.This gives a′ = 1.5382, b′= 0.4 067 4, c′= 1. 061 6, and d′= 1.0218.For a 4 in. crank, k = 4/0.4 067 4 =9.8343 and a = 15.127 in., b = 4 in., c =10.440 in., and d = 10.049 ... ψ13 and ψ12. This establishes points A′2, A′3 and A′4, but here A′3 and A′4coincide because of symmetry of A3 and A4about A0B0.4. Draw lines A1A′2 and A1A′4, and the ... points C and P.2. Draw a line through points C and O1.3. Draw a perpendicular to CP at P. This locates point A.4. Draw line AO2, to locate C0, the center of curvature.1. Draw extensions...
... can 466 Sclater Chapter 14 5/3/01 1:44 PM Page 466 464 SOFTWARE IMPROVEMENTS EXPAND CAD CAPABILITIESComputer Aided Design (CAD) is a computer-based technologythat allows a designer to draw and ... can also generate bills of materials.2D drawing and detailing software packages are based on ANSI,ISO, DIN, and JIS drafting standards.In a 2D CAD drawing, an object must be described by multi-ple ... system, builds parts up to 10 in3( 164 cm3) while the FDM3000, a floor-standing system, builds parts up to 10 ì10 ì 16 in. ( 26 ì 26 ì 41 cm).Two other floor-standing systems arethe FDM 8000,...
... prior written permission of the publisher.1234 567 890 KGP/KGP 0 765 4321ISBN 0-07-1 361 69-3The sponsoring editor for this book was Larry S. Hager and the production supervisorwas Pamela A. Pelton. ... Sclater. 2nd ed. 19 96. ISBN 0-07-1 361 69-31. Mechanical movements. I. Chironis, Nicholas P. II. Mechanisms & mechanicaldevices sourcebook. III. Title.TJ181.S28 2001 62 1.8—dc21 2001030297Copyright ... Technologies Group, Radford, VAã Ledex Actuation Products, TRW Control Systems, Vandalia OHã Sandia National Laboratories, Sandia Corporation, Albuquerque, NMã SolidWorks Corporation, Concord, MAã...
... is pushed upward an additional 15º, locking the handlecam and the slide. In step 6, the handle is rotated an additional30º, forcing the box and the mating spring-loaded electrical con-nectors ... left-handedthreads,ã An eye on a shank with external right-handed threads, and ã A flanged collar with left-handed externalthreads to mate with the shank of the first-mentioned eye, and right-handed ... self-centering and stronger. Non-sliding gearscan be pinned to the shaft if it is provided with a hub.Sclater Chapter 12 5/3/01 1:25 PM Page 420 CHAPTER 12FASTENING, LATCHING,CLAMPING, AND CHUCKING...
... both classical and mod-ern mechanisms and mechanical devices. This edition retains a large core of the con-tents from both the first and second editions, (published in 1991 and 19 96, respectively), ... has been supplemented by new and revised articles reflecting present and future trends in mechanical engineering and machine design.The new articles in this edition address topics that are covered ... programmable computer and digi-tal technology on those systems. Other articles discuss servomotors, actuators, sole-noids, and feedback sensors—important electromechanical, and electronic componentsused...