JD Lohr School of Woodworking Advanced Joinery Course Guide
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On the Mechanics of the Bow and Arrow 1
On the Mechanics of the Bow and Arrow 1 B.W. Kooi Groningen, The Netherlands 1983 1B.W. Kooi, On the Mechanics of the Bow and Arrow PhD-thesis, Mathematisch Instituut, Rijksuniversiteit Groningen, The Netherlands (1983), Supported by ”Netherlands organization for the advancement of pure research” (Z.W.O.), project (63-57) 2 Contents 1 Introduction 5 1.1 Prefaceandsummary.............................. 5 1.2 Definitionsandclassifications . .. 7 1.3 Constructionofbowsandarrows . .. 11 1.4 Mathematicalmodelling . 14 1.5 Formermathematicalmodels . 17 1.6 Ourmathematicalmodel. 20 1.7 Unitsofmeasurement.............................. 22 1.8 Varietyinarchery................................ 23 1.9 Qualitycoefficients ............................... 25 1.10 Comparison of different mathematical models . ...... 26 1.11 Comparison of the mechanical performance . ....... 28 2 Static deformation of the bow 33 2.1 Summary .................................... 33 2.2 Introduction................................... 33 2.3 Formulationoftheproblem . 34 2.4 Numerical solution of the equation of equilibrium . ......... 37 2.5 Somenumericalresults . 40 2.6 A model of a bow with 100% shooting efficiency . .. 50 2.7 Acknowledgement................................ 52 3 Mechanics of the bow and arrow 55 3.1 Summary .................................... 55 3.2 Introduction................................... 55 3.3 Equationsofmotion .............................. 57 3.4 Finitedifferenceequations . .. 62 3.5 Somenumericalresults . 68 3.6 On the behaviour of the normal force -
170928 Kapro Catalogue.Pdf
About Kapro Kapro is a leading manufacturer and developer of innovative hand tools for the professional and DIY markets. Kapro make the industry’s finest quality spirit levels, laser levels, layout marking and measuring tools. The company has built a reputation as the industry’s foremost innovator, and is renowned for its quality products, outstanding service, added value and cutting-edge designs. Global Distribution Network ABOUT KAPRO Kapro is a major global player in its category. Headquartered in Kadarim Israel, Kapro operates facilities in Israel, China and the USA – all wholly owned by Kapro Industries. Our network of distribution partners has created a leading market presence in over 60 countries, throughout Europe, the Americas and Asia, and in Australasia and Africa. Innovation & Design Kapro’s systematic approach to innovation has given the market some of its most ground-breaking features and products. Our market-changing patented designs include the Plumb Site® Dual-View™ vial, Optivision™ Red, Postrite® Folding Post Level and Topgrade™ Gradient Level. Kapro’s Plumb Site® Dual View™ vial is the only level feature to provide a front-on view of the plumb vial, eliminating parallax error as well as the neck and back strain that usually accompany vertical leveling jobs. In 2010, Kapro introduced Optivision™ Red that creates a strong colour definition around the spirit levels horizontal bubble, making it the clearest and most visible vial available. To date, Kapro has registered over 100 patents throughout the world on its products and features Kapro’s unique designs are highlighted by their sleek, stand-out red look, eye-catching graphics, simplicity of design and innovative packaging. -
Coaches Manual
Lviv State University of Physical Culture named after Ivan Boberskyj Department of shooting and technical sports Subject "Theory and Methodology of the Selected Sport and Improvement of Sports Skill – archery" for 4 courses students LECTURE: "TERMINOLOGY / GLOSSARY IN ARCHERY" by prof. Bogdan Vynogradskyi Lviv – 2020 TERMINOLOGY / GLOSSARY Actual draw length: The personal draw length Barrelled arrow: An arrow that has a greater of the archer measured at full draw, from the cross section in the middle and tapers down at bottom of the slot in the nock to the pivot point both ends. of the grip plus 1 3/4 inch (45mm), which is the Basic technique: The fundamental technique of back edge (far side of the bow) on most bows. shooting a bow and arrow. Usually the style Actual arrow length: The personal arrow taught during the introduction to archery, length of the archer, measured from the bottom forming the basis for consistent shooting. slot of the nock to the end of the shaft (this Belly (of bow): The surface of the bow facing measurement does not include the point/pile); the archer during shooting. Also known as the with this end of the shaft at 1 inch (25mm) in “face” of the bow. front of the vertical passing through the deepest point of the bow grip or the arrow rest. Black: The fourth scoring colour on the Indoor/Outdoor target face, when counting from Actual draw weight: The energy required to the centre of the target. draw the bow to the actual draw length (commonly measured in pounds). -
Slimline Standard Inswing Door WA8400 (Rev
Slimline Standard Inswing Door WA8400 (rev. 02.06.18) Copyright © 2018 Reveal Windows & Doors All rights reserved. No part of this manual may be reproduced or transmitted in any form or by any means without permission by Reveal Windows & Doors. Slimline Standard Inswing Door WA8400 (rev. 02.06.18) Slimline Standard Inswing Door WA8400 Section Contents Product Overview ...................................................................................................................................................................................... 3 Introduction ................................................................................................................................................................................................................ 3 Hardware Options ....................................................................................................................................................................................................... 3 Glazing Options ........................................................................................................................................................................................................... 3 Wood Species .............................................................................................................................................................................................................. 3 Hardware Images ....................................................................................................................................................................................................... -
Inset Cabinet Doors Create the Perfect Fit by Trimming One Side at a Time
Master Carpenter How to Install Inset Cabinet Doors create the perfect fit by trimming one side at a time BY SCOTT GIBSON aking and fitting cabinet doors takes time, and it has its occasional frustrations. Still, install- ing doors correctly is one of the real pleasures of cabinetmaking. if everything isn’t flat and Msquare or if the hinges aren’t installed properly, the doors won’t work the way they should. For an overlay cabinet door, the process is more forgiving: The door simply closes against the cabinet or face frame. an inset door is another story. it has to be trimmed to fit the door opening exactly, with an even gap all around between the face frame and the door. i like the appearance of inset doors because they don’t look as clunky as overlay doors. When an inset door is fitted cor- THE CRAFTSMAN Woodworker and writer Scott Gibson lives in East Waterboro, Maine. A former newspaper reporter, Scott worked as an editor at Fine Homebuilding before becoming editor in chief of Home Furniture and then Fine Woodworking. In addition to being a journalist, he’s had a lifelong passion for woodworking that’s yielded a whole house full of furniture. Scott and his wife, Susan, moved back to Maine in 2001, and after his new house was finished, he built a good shop. When his son Ben renovated the kitchen in his own house, Scott pitched in for the cabinets, which is where we caught up with him. 64 FiNE HOmEBUilDiNG photos this page: Nat rea COPYRIGHT 2012 by The Taunton Press, Inc. -
Specification of Spirit Level (For Use in Box Type Gauge Cum Level)
109 317359/2020/O/o PED/TMM/RDSO ISO: 9001-2015 Document No.: TM-52 Revision 01 Date Effective From:--/--/---- Document Title: Specification of Spirit Level (For use in Box type gauge cum level) SPECIFICATION OF SPIRIT LEVEL (For use in Box type gauge cum level) (No.TM-52 Dt.24.05.2000) First Revision, October-2020 Track Machines & Monitoring Directorate RESEARCH DESIGNS AND STANDARDS ORGANISATION Manak Nagar, Lucknow-226011 JRE/SSE/SSRE ARE/DTM/EDTM PEDTM Page 1 of 8 Prepared By: Checked By: Issued By 110 317359/2020/O/o PED/TMM/RDSO ISO: 9001-2015 Document No.: TM-52 Revision 01 Date Effective From:--/--/---- Document Title: Specification of Spirit Level (For use in Box type gauge cum level) 1.0 SCOPE: This specification covers the essential dimensional, functional and material characteristics with method of testing and accuracy of the spirit level. The spirit level is used to define a reference horizontal plane to compare the horizontality of the base of the spirit level with the plane containing the touching surfaces of the rail seatings of the gauge-cum-level. 1.1 Preference to make in India: compliance of the instruction contained in public procurement (preference to make in India) order -2017 “Make in India” shall be ensured or latest instructions issued on subject shall be ensured. 1.2 All the provisions contained in RDSO’s ISO procedures laid down in Document No. QO- D-8.1-11 dated 12.09.2018 (titled Vendor – Changes in approved status”), subsequent versions / amendments thereof shall be binding, and applicable on the successful manufacturers/suppliers in the contracts floated by Railways to maintain quality of products supplied to Railways. -
Bamboo Hardwoods Product Catalog
Bamboo HardwoodsÆ Product Catalog bamboohardwoodsÆ www.bamboohardwoods.comwww.bamboohardwoods.com About Bamboo Hardwoods Why Choose Bamboo? More Than A Flooring Company Associations & Memberships Plants and other organisms use photosynthesis to remove We are committed to providing service that goes beyond carbon from the atmosphere by incorporating it into biomass. expectations while offering products that expand the limits While doing so they release oxygen into the atmosphere. of quality and sustainability. We take great interest in being Bamboo is, by far, the most eficient plant on this planet at socially responsible and community oriented. sequestering carbon. It converts carbon dioxide into carbon biomass and oxygen 365 days a year. A Young Firm With A Global Mission Bamboo Hardwoods founder Doug Lewis has been Bamboo is harvested and replenished with no impact to the transforming bamboo, what was once considered a weed, environment. It can be selectively harvested annually and is into a sustainable source of wood iber since the mid 1908’s. capable of complete regeneration without the need to replant. He knew of the great potential for bamboo: it grew wood Because of its short growth cycle (it grows one third faster faster than trees. Therefore, he set out to make bamboo a than the fastest growing tree), it can be harvested in 3 - 5 popular and sustainable resource for use in North America by years versus 10 - 100 years for most tree woods. developing looring, furniture, and other building materials. With an amazing tensile strength that rivals steel (it can withstand up Over 15 Years Of Growth And Service to 52,000 pounds of pressure), bamboo is a viable replacement for Bamboo Hardwoods has been in business for over 15 years wood and makes for one of the strongest building materials. -
Schut for Precision
Schut for Precision Protractors / Clinometers / Spirit levels Accuracy of clinometers/spirit levels according DIN 877 Graduation Flatness (µm) µm/m " (L = length in mm) ≤ 50 ≤ 10 4 + L / 250 > 50 - 200 > 10 - 40 8 + L / 125 L > 200 > 40 16 + / 60 C08.001.EN-dealer.20110825 © 2011, Schut Geometrische Meettechniek bv 181 Measuring instruments and systems 2011/2012-D Schut.com Schut for Precision PROTRACTORS Universal digital bevel protractor This digital bevel protractor displays both decimal degrees and degrees-minutes-seconds at the same time. Measuring range: ± 360 mm. Reversible measuring direction. Resolution: 0.008° and 30". Fine adjustment. Accuracy: ± 0.08° or ± 5'. Delivery in a case with three blades (150, 200 Mode: 0 - 90°, 0 - 180° or 0 - 360°. and 300 mm), a square and an acute angle On/off switch. attachment. Reset/preset. Power supply: 1 battery type CR2032. Item No. Description Price 907.885 Bevel protractor Option: 495.157 Spare battery Single blades Item No. Blade length/mm Price 909.380 150 909.381 200 909.382 300 909.383 500 909.384 600 909.385 800 C08.302.EN-dealer.20110825 © 2011, Schut Geometrische Meettechniek bv 182 Measuring instruments and systems 2011/2012-D Schut.com Schut for Precision PROTRACTORS Universal digital bevel protractor This stainless steel, digital bevel protractor is Item No. Description Price available with blades from 150 to 1000 mm. The blades and all the measuring faces are hardened. 855.820 Bevel protractor Measuring range: ± 360°. Options: Resolution: 1', or decimal 0.01°. 495.157 Spare battery Accuracy: ± 2'. 905.409 Data cable 2 m Repeatability: 1'. -
Architectural Woodwork Standards, 2Nd Edition
Architectural Woodwork Standards WALL/CEILING SURFACING & PARTITIONS 8S E C T I O N SECTION 8 Wall/Ceiling Surfacing and Partitions table of contents INTRODUCTORY INFORMATION COMPLIANCE REQUIREMENTS Guide Specifications ...........................................................................194 GENERAL Introduction .........................................................................................195 Basic Considerations ....................................................................212 Wall and Ceiling Surfacing ..................................................................195 Grades .....................................................................................212 Opaque .........................................................................................195 Economy ...........................................................................212 Transparent ..................................................................................195 Custom ..............................................................................212 Contract Documents ...........................................................................195 Premium ............................................................................212 Product Advisory .................................................................................195 Grade Limitations ..............................................................212 Panel Sequence ..................................................................................196 Contract Documents -
Boral Building Products Inc
So Authentic. So Reliable. Nothing Compares. TruExterior® Siding & Trim is in a class of its own, invented to address issues common with other exterior products on the market. It’s a siding material that offers a high level of dimensional stability to help reduce expansion and contraction. Plus, TruExterior resists water, making it ideal for applications with ground or masonry contact. TruExterior gives builders the freedom to build beautiful homes with confidence. Pictured: Shiplap, Channel Bevel On the Cover: Nickel Gap, Channel 2 So Authentic.So Reliable. Nothing Compares. 3 4 Phenomenal Performance. Remarkable Workability. TruExterior® Siding & Trim offers both and a lasting look while eliminating the need for gluing, gapping and other cumbersome and costly installation techniques. APPLICATION Designed for use in non-structural applications Suitable for ground contact Can be used in moisture-prone areas Installation is the same regardless of the season TOOLS Installed using proven woodworking tools and methods Carbide-tipped blades and bits are recommended for a longer tool life FASTENING Accepts a wide variety of high-quality exterior-grade fasteners that are suitable for the local environment Can be fastened close to the edge No need for pre-drilling No mushrooming PAINTING TruExterior® products come pre-primed and do require paint No need to prime end cuts Can be painted with any high-grade exterior paint when following the paint manufacturer’s instructions Can be painted any color without special precautions as it is not prone to movement caused by heat gain from dark colors* Paint lasts longer than on wood because TruExterior® products cycle virtually no moisture* Traditional exterior-grade caulks, auto-body or wood fillers are all acceptable for filling nail holes *Please see TruExterior® Siding & Trim Limited Warranties and Product Data Sheets for proprietary test results, located at TruExterior.com. -
University of California, San Diego
UNIVERSITY OF CALIFORNIA, SAN DIEGO Fiber Adhesion and interactions of Vessel Distribution and Density in the Impact Resistance of Wood A Thesis submitted in partial satisfaction of the requirements for the degree Master of Science in Materials Science and Engineering by Albert Keisuke Matsushita Committee in Charge Professor Joanna M. McKittrick, Chair Professor Shengqiang Cai Professor Marc Meyers 2017 The Thesis of Albert Keisuke Matsushita is approved and it is acceptable in quality and form for publication on microfilm and electronically: Chair University of California, San Diego 2017 iii Table of Contents Signature Page ................................................................................................................... iii Table of Contents ............................................................................................................... iv List of Figures .................................................................................................................... vi List of Tables ................................................................................................................... viii Acknowledgements ............................................................................................................ ix Abstract of the Thesis ................................................................................................ xi—xii 1 Introduction ..................................................................................................................... 1 2 Background -
Exterior Wall Drainage Requirements
Effective May 11, 2020 Exterior Wall Drainage Requirements FOR MULTIFAMILY AND COMMERCIAL PROJECTS TABLE OF CONTENTS SECTION 1 Exterior Wall Drainage The information in this guide applies to any James Hardie® Requirements siding product installed flat-to-wall, including: SECTION 2 • HardiePanel® vertical siding Drainage Plane • Cempanel® vertical siding Requirements Detail • Prevail® panel siding products • Artisan® siding with lock joint system SECTION 3 Rainscreen Flat-to-wall installation definition: Any siding product where the Requirements Detail rear face of the product does not overlap the front face of the SECTION 4 product when applied per James Hardie installation instructions. FAQ The guidance and instructions provided herein are only valid for and applicable to James Hardie® products. James Hardie Building Products Inc. makes no warranty or representation with respect to the information contained herein for any use other than with James Hardie products, including but not limited to use with fiber cement siding TECHNICAL SERVICES products made by other manufacturers or siding products made of other materials. 888.542.7343 SECTION 1 EXTERIOR WALL DRAINAGE REQUIREMENTS This document only covers James Hardie exterior MINIMUM REQUIREMENTS BY REGION wall drainage requirements. Always follow all applicable CANADA TO FOLLOW LOCAL OR James Hardie installation instructions. PROVINCIAL BUILDING CODE EXCEPTIONS These requirements do not apply to the following: • Building Codes: All national, state, and local building codes must be followed, and where they are more stringent than James Hardie Installation requirements, state and local requirements will take precedence. • Reveal® Panel System is required to be installed WRB1 Dry Climates over furring. The furring provides a rainscreen and the fastening base for Reveal® trims and panels.