Mechanisms and Mechanical Devices Sourcebook - Chapter 15
Mechanisms and Mechanical Devices Sourcebook - Chapter 15
... Cataloging-in-Publication DataSclater, Neil .Mechanisms and mechanical devices sourcebook / Neil Sclater, Nicholas P. Chironis.—3rd ed.p. cm.Rev. ed of: Mechanisms & mechanical devices sourcebook ... P.Chironis, Neil Sclater. 2nd ed. 1996.ISBN 0-0 7-1 3616 9-3 1. Mechanical movements. I. Chironis, Nicholas P. II. Mechanisms & mechanicaldevices sourcebook. I...
Ngày tải lên: 22/10/2012, 14:26
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 ... movement, andthe top disk provides the up -and- down force necessary for thecutting action.This four-bar linkagewith an extended couplercan cut a web on the runat high speeds. The four-bar linkage .....
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Mechanisms and Mechanical Devices Sourcebook - Chapter 4
... smoothness and flexibil-ity in converting constant rotary motioninto a start -and- stop type of indexing.It works equally well for high-speedoperations, as fast as 2 seconds per cycle,including index and ... favorablehigh-speed characteristics for stop -and- go mechanisms isr3= R3The profile defined by this equationhas, among other properties, the charac-teristic that, at transition fro...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 5
... tilting and uncertaintyin the distance between the plates). Otherprior mechanisms relied on spring load-ing, differential multiple-point drives andother devices to reduce backlash. In pro-viding ... inven-tors include Evans, Tchebicheff, Roberts ,and Scott-Russell.Four-bar arrangement. Like othermechanisms that aim at straight-linemotion, the Daniel design is based on thecommon four-ba...
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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 ... stictionless and neg-ligible hysteresis characteristics. Thebearing is radiation-resistant and can beused in high vacuum conditions or inenvironments where there is dirt andcontaminati...
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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 ... frequentlyemployed in automatic-feed mechanismsand screw machines They are the circular,constant-velocity, simple-harmonic,cycloidal, modified cycloidal, and circu-...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 8
... CHAPTER 8GEARED SYSTEMS ANDVARIABLE-SPEEDMECHANISMSSclater Chapter 8 5/3/01 12:42 PM Page 241 Gears are versatile mechanical components capable of per-forming many different ... losses in the gears and bearings andfrom windage and churning of lubricant.gear power: A gear’s load and speed capacity, determined bygear dimensions and type. Helical and helical-type gears havecapaci...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 9
... 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) to transmit tor-sional ... ofMIL-E-5400, class 3 and MILK-3926specifications.Applications were seen in counter andreset switches and controls for machinesand machine tools, radar systems, andprecision potenti...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 10
... 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 loading. ... signal devices. The load plunger and the swaged-on cable termina-tion have ball -and- socket seat sections to permitmaximum free cable movement, reducing the possi-bility of fatig...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 11
... 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 materials ... clockwise or counter-clockwise. The tube iscompletely encased and cannot expand beyond its original diameter. The standard pump ismade of bronze and will handle volumes to 15 gpm. The Sq...
Ngày tải lên: 22/10/2012, 14:26