Mechanisms and Mechanical Devices Sourcebook - Chapter 4
Mechanisms and Mechanical Devices Sourcebook - Chapter 4
... CHAPTER 4RECIPROCATING ANDGENERAL-PURPOSEMECHANISMSSclater Chapter 4 5/3/01 10 :44 AM Page 93
An ingenious intermittent mechanismwith its multiple gears, gear racks, andlevers provides ... must mesh with every lobe on gear4, and T3/T4= L3/L4= 2/3, where T3andT4are the numbers of teeth on gears 3and 4. T 1and T2will denote the numbersof teeth on gears 1 and 2.Next, select the rati...
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
... CHAPTER 3PARTS-HANDLINGMECHANISMSSclater Chapter 3 5/3/01 10:19 AM Page 51
5 2MECHANISMS THAT SORT, FEED,OR WEIGHORIENTING DEVICESHere’s a common problem; Parts arrive in either open-end ... feed mechanisms. Sclater Chapter 3 5/3/01 10:20 AM Page 62
63Sclater Chapter 3 5/3/01 10:20 AM Page 63
64Sclater Chapter 3 5/3/01 10:20 AM Page 64
65SEVEN LINKAGES FOR TRANSPORTMECHANISMSFig....
Mechanisms and Mechanical Devices Sourcebook - Chapter 5
... surfaces fora low-cost setup).GEARSSclater Chapter 5 5/3/01 11 :45 AM Page 143
144 NINE MORE WAYS TO CHANGE STRAIGHT-LINEDIRECTIONThese mechanisms, based on gears, cams, pistons, and solenoids, ... describestraight-line paths through a stroke of 4R. Allpoints between A and B trace ellipses, whilethe line AB envelopes an astroid.Sclater Chapter 5 5/3/01 11 :45 AM Page 139
140 FIVE...
Mechanisms and Mechanical Devices Sourcebook - Chapter 6
... A standard rotat-ing-air fitting is required.Reciprocating linear force link: It recipro-cates with one-, two-, or three-convolutionair springs in a back-to-back arrangement.Two- and three-convolution ... CHAPTER 6SPRING, BELLOW,FLEXURE, SCREW, ANDBALL DEVICESSclater Chapter 6 5/3/01 12: 24 PM Page 173
FLAT SPRINGS IN MECHANISMS1 74Constant force is approached because of the length of...
Mechanisms and Mechanical Devices Sourcebook - Chapter 7
... composedof circular arc 1-2 with center at 02, arc 3 -4 with center at 03, arc 4- 5 with center at01, arc 5-6 with center at 04, arc 7-1 withcenter at 01, and the straight lines 2-3 and6 -7 . The method calls ... turned with radii r1,r3, and r4. One such piece is shown inFig. 7. The templates have hubs that fitinto the drilled holes at 01, 03, and 04. Next the arcs 7-1 ,...
Mechanisms and Mechanical Devices Sourcebook - Chapter 8
... which control radial position andtherefore control the orbit. Ring and sundisks are spring-loaded.DISK DRIVESSclater Chapter 8 5/3/01 12 :42 PM Page 247
248 Ring -and- pulley drive (Fig. 9). Athick ... from 4: 1 to 24: 1. The systemis built in Japan in ratings up to 2 hp. 246 Sclater Chapter 8 5/3/01 12 :42 PM Page 246
247 Adjustable disk drives (Figs. 6A and6 B).The output shaft...
Mechanisms and Mechanical Devices Sourcebook - Chapter 9
... ofMIL-E- 540 0, class 3 and MILK-3926specifications.Applications were seen in counter andreset switches and controls for machinesand machine tools, radar systems, andprecision potentiometers.Eight-Joint ... Rzappa-type jointto get the desired effect.Ball -and- socket. Basically, the True-Speed joint is a system of ball -and- socket connections with large contactareas (low unit pressure) t...
Mechanisms and Mechanical Devices Sourcebook - Chapter 10
... CHAPTER 10TORQUE-LIMITING,TENSIONING, ANDGOVERNING DEVICESSclater Chapter 10 5/3/01 1:07 PM Page 339
340 CALIPER BRAKESHELP MAINTAINPROPER TENSIONIN PRESS FEEDA simple cam -and- linkage ... warning light and second tolight a red bulb and also sound an alarmbell.Over-the-side or over-the-rear loadingrequires a different setting of theBourdon pressure-gage unit than doesover-the-front...
Mechanisms and Mechanical Devices Sourcebook - Chapter 11
... wear. In oper-ation, the tip of the bucket is in light con-tact with the casing wall. Liquids aremoved by sucking and pushing actionsand are not churned or foamed .4. HIGH-PRESSURE, high-volume pumps ... steel, monel, andbronze for handling acids, oils, and sol-vents. The impeller is made of pressure-vulcanized laminated layers of Hycar, 85 to90 percent hard. Sand, grit, scale andfibrous...
Mechanisms and Mechanical Devices Sourcebook - Chapter 13
... discussed here .44 7Sclater Chapter 13 5/3/01 1:32 PM Page 44 7
44 8DESIGN CURVES AND EQUATIONS FOR GEAR-SLIDER MECHANISMSWhat is a gear-slider mechanism? It islittle more than a crank -and- slider withtwo ... −sinψ11rrc+=sinψconstantSclater Chapter 13 5/3/01 1:32 PM Page 44 4
44 5DESIGNING CRANK -AND- ROCKER LINKS WITH OPTIMUM FORCE TRANSMISSIONFour-bar linkages can be...