GRINDING Abrasive Machining
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This Clock Is a Rather Curious the Movement Is That of a a Combination
MINERAL GLASS CRYSTALS 36 pc. Assortment Clear Styrene Storage Box Contains 1 Each of Most Popular Sizes From 19.0 to 32.0 $45.00 72 pc. Assortment Clear Styrene Storage Box Contains 1 Each of Most Popular Refills Available Sizes From 14.0 to 35.0 On All Sizes $90.00 :. JJl(r1tvfolet Gfa:ss A~hesive Jn ., 'N-e~ilie . Pofot Tobe · Perfect for MinenifGlass Crystals - dire$ -iA. secondbn ~un or ultraviolet µgh{'DS~~~ cfa#ty as gl;lss. Stock Up At These Low Prices - Good Through November 10th FE 5120 Use For Ronda 3572 Y480 $6.50 V237 $6.50 Y481 $6.95 V238 $6.95 Y482 $6.95 V243 $6.95 51/2 x 63/4 $9.95 FREE - List of Quartz Movements With Interchangeability, Hand Sizes, Measurements, etc. CALL TOLL FREE 1-800-328-0205 IN MN 1-800-392-0334 24-HOUR FAX ORDERING 612-452-4298 FREE Information Available *Quartz Movements * Crystals & Fittings * * Resale Merchandise * Findings * Serving The Trade Since 1923 * Stones* Tools & Supplies* VOLUME13,NUMBER11 NOVEMBER 1989 "Ask Huck" HOROLOGICAL Series Begins 25 Official Publication of the American Watchmakers Institute ROBERT F. BISHOP 2 PRESIDENT'S MESSAGE HENRY B. FRIED QUESTIONS & ANSWERS Railroad 6 Emile Perre t Movement JOE CROOKS BENCH TIPS 10 The Hamilton Electric Sangamo Clock Grade MARVIN E. WHITNEY MILITARY TIME 12 Deck Watch, Waltham Model 1622-S-12 Timepieces WES DOOR SHOP TALK 14 Making Watch Crystals JOHN R. PLEWES 18 REPAIRING CLOCK HANDS 42 CHARLES CLEVES OLD WATCHES 20 Reality Sets In ROBERT D. PORTER WATCHES INSIDE & OUT 24 A Snap, Crackle, & Pop Solution J.M. -
The Evolution of Tower Clock Movements and Their Design Over the Past 1000 Years
The Evolution Of Tower Clock Movements And Their Design Over The Past 1000 Years Mark Frank Copyright 2013 The Evolution Of Tower Clock Movements And Their Design Over The Past 1000 Years TABLE OF CONTENTS Introduction and General Overview Pre-History ............................................................................................... 1. 10th through 11th Centuries ........................................................................ 2. 12th through 15th Centuries ........................................................................ 4. 16th through 17th Centuries ........................................................................ 5. The catastrophic accident of Big Ben ........................................................ 6. 18th through 19th Centuries ........................................................................ 7. 20th Century .............................................................................................. 9. Tower Clock Frame Styles ................................................................................... 11. Doorframe and Field Gate ......................................................................... 11. Birdcage, End-To-End .............................................................................. 12. Birdcage, Side-By-Side ............................................................................. 12. Strap, Posted ............................................................................................ 13. Chair Frame ............................................................................................. -
Drill Press Operator: Instructor's Guide
DOCUMENT RESUME 2D 109 N77 CE 004 335 AUTHOR Kagan, Alfre d; And Others TITLE -Drill Press Operator: Instructor's Guide. INSTITUTION New York State Education Dept., Albany. Bureau of Continuing Education Curriculum Development.; New York State Education Dept., Albany. Bureau of Secondary,Curriculum Development. PUB DATE 75 NOTE . 85p.; Part of SingleTool Skills Program, Machine Industries Occupations EDRS PPICE MIP-$0.76 HC-$4.43 PLUS POSTAGE DESCRIPTORS Adult Education; *Curriculum Guides; Machine Tool Operators; *Machine Tools; Metal Working Occupations; Post Secondary Education; Secondary Education; Shop Curriculum; *Trade and Industrial Education IDENTIFIERS *Drill Press Operators ABSTRACT The course is intended to kelp meet, in a relatively short time, the need for trained operators in metalworking. It can be used by students with little education or experience and is suitable far use in adult education programs and in manpower development and training progress. The course is designed' to be completed in approximately 30 weeks and can be adapted for use in secondary 'schools. On successful completion of the course the student will be qualified for an entry-level job as operator in a drill press; he will not qualify as a eachinist. The guide includes h general job content outline for the teacher to use in explaining what the operator's job includes. There are Il shop projects (comprising 19 jobs) accompanied by 32 pages of drawings for the projects. Three of the jobs introducb students to the use of metric measurement. For each job there is a job sheet providing details on performance objectives, equipment, operations, materials, references, procedure, techniques, and time required. -
Surface Plates
CALL US TODAY +1-262-422-1197 BUSCH PRECISION EQUIPMENTcan help you… Improve manufacturing efficiency and quality • Reduce costs and increase profits Worldwide consumer preference for L better products and the accompanying development of international quality standards demands meticulous QUALITY attention to accuracy in all phases of ASSURANCE & manufacturing. PRODUCT This catalog describes over 300 standard SATISFACTION types and sizes of basic precision Since 1907, BUSCH has been equipment designed to: serving industry’s basic precision equipment needs. L Facilitate layout of tooling As a diversified full-service L Speed production and assembly machine center, as well as a L Simplify and speed inspection manufacturer of precision equipment, we know and use the L Provide quality assurance products. Every effort is made to provide the highest quality products consistent with cost and material availability. Each In addition to the standard items item is carefully inspected and calibrated to insure conformance illustrated in this catalog, we also to specified tolerances and for compliance with all recognized design and manufacture custom standards. Inspection and calibration are performed by equipment to meet special applications. qualified technicians using appropriate state-of-the-art instrumentation. We also recondition worn or repair Certification of Accuracy is available for any item on request damaged equipment. This can be a and such certification is traceable to the National Institute of wise financial move in that regrinding Standards and Technology (NIST). Detailed information on our out-of-tolerance items can be calibration and inspection procedures and instrumentation can accomplished at considerable savings be found on page 19. over replacement cost. -
High-Speed Ground Transportation Noise and Vibration Impact Assessment
High-Speed Ground Transportation U.S. Department of Noise and Vibration Impact Assessment Transportation Federal Railroad Administration Office of Railroad Policy and Development Washington, DC 20590 Final Report DOT/FRA/ORD-12/15 September 2012 NOTICE This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. Any opinions, findings and conclusions, or recommendations expressed in this material do not necessarily reflect the views or policies of the United States Government, nor does mention of trade names, commercial products, or organizations imply endorsement by the United States Government. The United States Government assumes no liability for the content or use of the material contained in this document. NOTICE The United States Government does not endorse products or manufacturers. Trade or manufacturers’ names appear herein solely because they are considered essential to the objective of this report. REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503. -
E-1 Small Tool Instruments and Data Management Gauge Blocks Height
Small Tool Instruments and E Data Management INDEX Gauge Blocks Features E-2 Gauge Blocks Accuracies E-4 Metric Rectangular Gauge Block Sets E-6 Inch Rectangular Gauge Block Sets E-11 Micrometer Inspection Gauge Block Sets E-12 Caliper Inspection Gauge Block Sets E-13 Individual Metric Rectangular Gauge Blocks E-14 Individual Inch Rectangular Gauge Blocks E-16 Height Master Rectangular Gauge Blocks with CTE E-17 ZERO CERA BLOCKS E-17 Rectangular Gauge Block Accessories E-18 Metric Square Gauge Block Sets E-20 Inch Square Gauge Block Sets E-21 Individual Metric Square Gauge Blocks E-22 Reference Gages Individual Inch Square Gauge Blocks E-23 Square Gauge Block Accessories E-24 Ceraston E-26 Maintenance Kit for Gauge Blocks E-26 Step Master E-27 Custom-made Blocks & Gages E-27 Gauge Block Interferometer GBI E-28 Granite Surface Gauge Block Comparator GBCD-100A E-28 Plates & Bench Gauge Block Comparator GBCD-250 E-29 Gauge Block Comparator GBCS-250 E-29 Comparator Height Master Height Master E-30 Digital Height Master E-30 CERA Height Master E-31 Auxiliary Block Kit E-31 Riser Blocks E-31 Universal Height Master E-32 Check Master E-33 Reference Gages Standard Scales E-34 Working Standard Scales E-34 CERA Straight Master E-35 Snap Gage Checker E-36 High Precision Square E-36 CERA/Steel Combination Square Master E-37 Gauge Block Sets Precision Square E-38 Precision Dial Square E-38 Combination Square Set E-39 E Steel Rules E-40 Thickness Gages E-41 Radius Gages E-42 Thread Pitch Gages E-42 E Digital Universal Protractor E-43 Universal Bevel -
KOM DIGITAL NOTES.Pdf
DIGITAL NOTES Kinematics of Machinery R18A0307 B.Tech –II – I DEPARTMENT OF MECHANICAL ENGINEERING MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (An Autonomous Institution – UGC, Govt.of India) Recognizes under 2(f) and 12(B) of UGC ACT 1956 (Affiliated to JNTUH, Hyderabad, Approved by AICTE –Accredited by NBA & NAAC-“A” Grade-ISO 9001:2015 Certified) MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY Department Of Mechanical Engineering,MRCET. COURSE OBJECTIVES: Understand the fundamentals of the theory of kinematics and dynamics of machines. Understand techniques for studying motion of machines and their components. Use computer software packages in modern design of machines. UNIT – I Mechanisms : Elements or Links , Classification, Rigid Link, flexible and fluid link, Types of kinematic pairs , sliding, turning, rolling, screw and spherical pairs lower and higher pairs, closed and open pairs, constrained motion, completely, partially or successfully constrained and incompletely constrained . Machines : Mechanism and machines, classification of machines, kinematic chain , inversion of mechanism, inversion of mechanism , inversions of quadric cycle, chain , single and double slider crank chains. UNIT – II Straight Line Motion Mechanisms: Exact and approximate copiers and generated types Peaucellier, Hart and Scott Russul Grasshopper Watt T. Chebicheff and Robert Mechanisms and straight line motion, Pantograph. Steering Mechanisms: Conditions for correct steering Davis Steering gear, Ackermans steering gear velocity ratio. Hooke’s Joint: Single and double Hookes joint Universial coupling application problems. UNIT – III Kinematics: Velocity and acceleration - Motion of link in machine - Determination of Velocity and acceleration diagrams - Graphical method - Application of relative velocity method four bar chain. Analysis of Mechanisms: Analysis of slider crank chain for displacement, velocity and acceleration of slider - Acceleration diagram for a given mechanism, Kleins construction, Coriolis acceleration, determination of Coriolis component of acceleration. -
Performance Standards Vertical Milling Level I
Performance Standards Vertical Milling Level I Material Mild steel or low carbon steel 1.5" x 2" x 2.6" Duty Setup and operate vertical milling machines. Perform routine milling, and location of hole centers within +/-.005". Performance Standard Given raw material, print, hand, precision, and cutting tools, as well as access to an appropriate vertical milling machine and its accessories, produce a part matching the blueprint specifications using appropriate trade techniques and speeds and feeds. The part specified should require squaring up from the raw state, have at least one milled slot, require the location of at least two drilled and reamed holes within positional tolerance of .014” and have three steps controlled by tolerances of +/-.005". Other Evaluation Criteria 1. Finishes are at least 125 Ra microinches. 2. No sharp edges. Accuracy Level: +/- .015 on all fractions, +/-.005 on all decimals unless otherwise specified on the blueprint. Finishes Surfaces to be square within .005 over 4". Finished surfaces are to be 125 Ra microinches unless otherwise specified. Assessment Equipment and Material Workstation: A common workbench, a vertical mill. Table capacity of approximately 12"X36". Material: A part matching the material requirements of the vertical milling print, material: Mild steel. Tooling: A 6" milling vise or greater, screws, studs, nuts, washers, and clamps sufficient to secure the vise, or the part to the table. Assorted parallels, ball peen, and soft-faced hammers, assorted cutters and cutter adapters fitted to the machine spindle, files, magnetic base for indicators, soft jaws for the vise, drill chuck, drills, reamers, combination drill and countersink or spotting drill, countersink, and edge finder. -
Kinematics of Machinery
KINEMATICS OF MACHINERY Subject code: ME302ES Regulations: R16-JNTUH Class: II Year B. Tech MECH I Sem Department of Mechanical Engineering BHARAT INSTITUTE OF ENGINEERING AND TECHNOLOGY Ibrahimpatnam - 501 510, Hyderabad 1 | P a g e KINEMATICS OF MACHINERY (ME302ES) COURSE PLANNER I. COURSE OBJECTIVE AND RELEVANCE: 1. To understand the basic components and layout of linkages in the assembly of a system/machine. 2. To understand the principles involved in the displacement, velocity and acceleration at any point in a link of a mechanism. 3. To understand the motion resulting from a specified set of linkages. 4. To understand and to design few linkage mechanisms and cam mechanisms for specified output motions. 5. To understand the basic concepts of toothed gearing and kinematics of gear trains. II. PRE REQUISITES: Knowledge of engineering mechanics is required. III. COURSE PURPOSE This course introduces students to involve in kinematics study how a physical system might develop or alter over time and study the causes of those changes. In particular, kinematics is mostly related to Newton's second law of motion. However, all three laws of motion are taken into consideration, because these are interrelated in any given observation or experiment. Kinematics of machine deals with the relative motion of machine parts. Kinematic schemes of a machine can be investigated without considering the forces. IV. COURSE OUTCOME: S.NO Description Bloom’s Taxonomy Level 1 Classify different types of links and mechanisms used for different Knowledge, Understand, purposes in different machines. (Level1, Level2,) 2 Solve the forces, velocities and accelerations in different Understand, Apply mechanisms and machines components ( Level2,Level 3) 3 List, Predict and Design different type of links applied to get the Understand, Apply required motion of different types of the parts of machines ( Level2,Level 3) 2 | P a g e V. -
Mechanisms Containing Wheel-Trains.-1Iechanisms Are of Common Occurrence in Which Wheel Train� Form Part of Chains Containing Also Sliding and Turning Pairs
CHAPTER VIII. ,vHEEL-TRAINS AND MECHANISMS CONTAINING THEM. CAMS. ' 68. Simple and Compound Wheel-trains.-The deter mination of the velocity ratio in such a ,vheel-train as that of Fig. 130 involves no difficulty, for it is plain that one or FIG, 1.30. more intermediate wheels (as b) will not affect the numerical value of the velocity ratio of the first and last wheels. The linear velocity of the pitch-line of every wheel is the same, and the angular velocity ratio of the first and last, there- fore, only depends on their �wn diameters, so that wad = ± rC, Wed ro the sign depending on the number of idle wheels. Inter mediate or idle wheels thus simply reverse the direction of motion. When all the wheels in the train have external contact, the angular velocity ratio of the first wheel to the last has a positive value (or, both wheels tum in the same 201 202 KINEMATICS OF MACHINES. sense) if the number of axes is odd, wl1ile an even number of axes gives the velocity ratio a negative value. l\Iore com plex wheel-trains, however, require further consideration. In Fig. 131 we have a compound spur-wheel mechanism of =- ,......_ �-f--i--=>t-�,,,...-------+---Ocdd --f:!r�=-- FIG. 131. four links, d being fixed, while b consists of two wheels rigidly connected and turning onthe same axis. r , r Let 0 b• Rb, re, be the radii of the pitch-circles, then from § 64 we have Also, Hence Suppose a to be the driving-wheel, while c is the driven one; ,ve see that the above result may be expressed by say ing that · revolutions of driving-wheel ve1 oci • ty ra t10 = revolutions of driven wheel _product of radii of followers - product of radii of drivers · Instead of radii we might evidently put numbers of teeth. -
Evaluation Instructions Machining Level II Grinding: Flats and Angles
Evaluation Instructions Machining Level II Grinding: Flats and Angles General Instructions 1. Make sure that the candidate has his/her own copy of the part print, job instructions and understands the criteria for performance evaluation. Times indicated are guidelines and will not be part of the assessment. 2. Provide access to the tools, equipment and materials as suggested on the next page. 3. Identify each candidate’s work upon completion and permanently mark all parts. 4. Complete the evaluation of the candidate’s project as soon as possible after completion. Be sure to complete the SPONSOR portion of the Performance Affidavit for successful projects. Monitoring the Performance 1. Make sure that the steel block used to complete the project agrees with the specifications on the part print. 2. Always check to see that the candidate is using the workholding devices and tooling in a safe and secure manner. 3. Check that all personal protection and safety precautions are being employed. Stop any candidate from creating an unsafe condition. A candidate should not be allowed to start, continue, or return to the project until an unsafe condition is resolved. If the unsafe condition is of the candidate’s making, the evaluator or sponsor should require that the candidate completely restart the project after the safety issue has been resolved and appropriate instruction has been given. Completion of the Performance Evaluation 1. Check to see that the candidate has provided proper cleanup of tools, equipment and work area. 2. Check to see that tools are returned to their proper storage locations. 3. -
Introduction Machine Types
Introduction In this part of the Molex eGUIDE we will discover and learn the operations and procedures that go behind surface grinding. As you learn you would appreciate the process of producing and finishing flat surfaces and you would find yourself better adapted to the processes and demands on work at the Molex tool room. We will begin with a definition on grinding and then focus on surface grinding to understand machine types, machine know-how and the surface grinding process that is demonstrated on the job - to help you identify with best practices adopted at Molex. This course is intended to serve as a guide to on the job demands and hence it is treated with a practical approach covering all facets of surface grinding as a process with the niceties of this grinding technology. How would one define grinding? Grinding is a process of fine metal cutting, achieved by the action of many small individual abrasive grains. These abrasive grains are formed into a grinding wheel that is rotated against the work piece at high speeds. Grinding machines and grinding processes are essential to most manufacturing industries, and at Molex we have proven our expertise with very high precision work covering Surface Grinding, Profile grinding, CNC Surface grinding, CNC Jig Grinding and CNC Optical Profile Grinding. Having understood the process of grinding, let's understand - What surface grinding is about? Surface Grinding is the process of producing and finishing flat surfaces by means of a grinding machine employing a revolving abrasive wheel. Machine Types Surface grinding is performed on two different types of surface grinding machines that are differentiated by the position of the grinding wheel spindle in relation to the table that holds the work.