Reduction of Dust and Energy During Coal Cutting Using Point attack Bits with an Analysis of Rotary Cutting and Development of a New Cutting Concept

Reduction of Dust and Energy During Coal Cutting Using Point attack Bits with an Analysis of Rotary Cutting and Development of a New Cutting Concept

Most U.S. studies followed the British test methods for chise 1-type bits although
the majority of U.S. mines use point-attack bits on machines with drums carrying
50 to 150 carbide-tipped cutting tools (6, 15, 17). The cutting action of the ...

Author: Wallace W. Roepke

Publisher:

ISBN: UOM:39015078473066

Category: Coal mines and mining

Page: 53

View: 708

Report of a study of the cutting characteristics of point-attack bits to reduce airborne respirable dust and energy during cutting.
Categories: Coal mines and mining

Mechanical Handling

Mechanical Handling

... economical and fast drain cutting in as is so often the case in hill drain cutting .
uneven land , has been demonstrated at a The drain cutter is built throughout of
number of centres recently in Scotland by mild steel except for the share point ...

Author:

Publisher:

ISBN: MINN:31951D00042751C

Category:

Page:

View: 227

Categories:

Jet Cutting Technology

Jet Cutting Technology

Through these points fictitious cutting tools of original geometry can be
interpolated (sharp bit starting at point 0). Through the other points of the blunt
curve can be interpolated cutting tools with original back angle. Their wedge and
cutting ...

Author: A. Lichtarowicz

Publisher: Springer Science & Business Media

ISBN: 9789401126786

Category: Technology & Engineering

Page: 633

View: 570

This volume contains papers presented at the 11th International Conference on Jet Cutting Technology, held at St. Andrews, Scotland, on 8-10 September 1992. Jetting techniques have been successfully applied for many years in the field of cleaning and descaling. Today, however, jet cutting is used in operations as diverse as removing cancerous growths from the human body, decommissioning sunsea installations and disabling explosive munitions. The diversity is reflected in the papers presented at the conference. The papers were divided into several main sections: jetting basics -- materials; jetting basics -- fluid mechanics; mining and quarrying; civil engineering; new developments; petrochem; cleaning and surface treatment; and manufacturing. The high quality of papers presented at the conference has further reinforced its position as the premier event in the field. The volume will be of interest to researchers, developers and manufacturers of systems, equipment users and contractors.
Categories: Technology & Engineering

Metric Pattern Cutting for Menswear

Metric Pattern Cutting for Menswear

Collars. cut. in. one. with. the. garment. Seam allowances The roll collar drafts are
drafted to include 1cm seam allowance except where marked. ... Mark point 1 at
break point; mark point 2a at neck point of fitting line on front shoulder section.

Author: Winifred Aldrich

Publisher: John Wiley & Sons

ISBN: 9781118372050

Category: Design

Page: 200

View: 959

Since the first edition was published in 1980, Metric PatternCutting for Menswear has become established as the standardwork on this subject and has proved invaluable as both a textbookfor students and a reference source for the practisingdesigner. In this fifth edition, the chapter on computer aided design nowhas full colour illustrations and reflects the growing importanceof CAD to the industry and as a part of fashion and design courses.The rest of the book has been updated where necessary: inparticular, new blocks for tailored shirts, new details on how toadapt men’s blocks for women’s wear, and a revision ofsizing and labelling information. Colour is now used todifferentiate the main groups of patterns and with its tried andtested layout with clear text and diagrams, Metric PatternCutting for Menswear is an essential purchase for students offashion and design.
Categories: Design

The Effect of Side Rake Angle on Single Point Cutting Tool Pressures

The Effect of Side Rake Angle on Single Point Cutting Tool Pressures

It reduces the cutting force , which is from 230,000 to 500,000 psi of cut for steel ,
and , up to a certain value , increases tool life . Back rake on a side cutting tool 18
of less importance than side rake . It usually controls the direction of chip flow .

Author: Phillip Allen Reed

Publisher:

ISBN: WISC:89089013643

Category:

Page: 274

View: 412

Categories:

Development of New Drilling Force Models for Improving Drill Point Geometries

Development of New Drilling Force Models for Improving Drill Point Geometries

Stephenson , D. A. and Agapiou , J. S. , 1992 , " Calculation of Main Cutting Edge
Forces and Torque for Drills with Arbitrary Point Geometries , " Int . J. of Machine
Tools and Manufacture , Vol.32 , No.4 , pp.521-538 . Subramanian , K. and ...

Author: Jane-Lin Wang

Publisher:

ISBN: UOM:39015032445424

Category:

Page:

View: 959

Categories:

Pattern Cutting The Architecture of Fashion

Pattern Cutting  The Architecture of Fashion

Trace the basic sleeve block, marking in all relevant lines and balance points.
Cut out. 2. From the back, cut along the elbow line to the centre line. Fold a dart
away below the elbow to the wrist to open a 1.5- to 2-cm dart at elbow level. 3.

Author: Pat Parish

Publisher: Bloomsbury Publishing

ISBN: 9781474272391

Category: Design

Page: 184

View: 696

Pattern cutting, or pattern making, is an essential yet complex skill for every fashion designer to master. Pattern Cutting: The Architecture of Fashion demystifies the pattern cutting process and clearly demonstrates pattern fundamentals, enabling you to construct in both 2D and 3D, and quickly get to grips with basic blocks, shape, sleeves, collars, trousers, pockets and finishes. Pat Parish approaches the subject of pattern cutting through proportion, balance, line and form, identifying key shapes and structures from the catwalk and translating them into 3D through cutting, draping and construction processes. This popular and inspirational sourcebook has been updated to reflect new directions in construction design and techniques, and to include more advanced patterns, such as the Magyar sleeve and the jumpsuit. With handy tips, shortcuts and tricks of the trade, the second edition of Pattern Cutting is a must-have studio resource for all budding fashion designers. It will provide you with the inspiration, tools and confidence to interpret and adapt basic patterns, and take your designs to the next level. New to this edition - Step-by-step instructions for more complex patterns, including the Magyar sleeve, rever collar and jumpsuit - A chapter devoted to patterns for pockets and finishes - Invaluable information about working with different fabrics, such as neoprene and spacer - Expanded coverage of innovation in pattern cutting, including sustainable and geometric cutting techniques - Refreshed pattern flats and colour images - Case studies with designers who have used cutting techniques to create unique, contemporary designs
Categories: Design

The Good Housekeeping Illustrated Book of Home Maintenance

The Good Housekeeping Illustrated Book of Home Maintenance

Then cut away small pieces to remove the surplus until the vinyl lies flat along
one wall 2, but work carefully to avoid over- cutting. The vinyl will then need to be
trimmed against the other wall. 1 Make a release cut to the point of the corner 2 ...

Author: John McGowan

Publisher: William Morrow & Company

ISBN: 0688043151

Category: Dwellings

Page: 240

View: 766

Covers paint, wallpaper, tile, carpet, paneling, furniture repair, lighting, storage, plumbing, heating, insulation, and household safety
Categories: Dwellings

Design and Use of Cutting Tools

Design and Use of Cutting Tools

Point C contact starts rupturing the metal on the strong part of the side cutting
edge . By the time point E enters the work , the workpiece metal is partly ruptured
; this protects corner point E by decreasing the impact force . 4 . The worst point of
 ...

Author: Leo J. St. Clair

Publisher:

ISBN: UOM:39015002003344

Category: Cutting machines

Page: 437

View: 791

Categories: Cutting machines

The Packages

The Packages

The provisions for cut downs should b carefully as it furnishes the best chance
Point Has Been Reached Where Distinction Should Be narrow stock that
accumulates incident ing up logs and to cutting out defects . Made in Various
Divisions of ...

Author:

Publisher:

ISBN: UIUC:30112064287060

Category:

Page:

View: 425

Categories:

The Technology Teacher

The Technology Teacher

This is simply the interpretation or reading of a graph using the X - axis , Y - axis ,
and O ( as the origin to locate any given point ) . The movement of the cutting tool
on the lathe machine is assigned the Z - axis , and the cross slide is assigned ...

Author:

Publisher:

ISBN: UOM:39015081731468

Category: Industrial arts

Page:

View: 899

Categories: Industrial arts

Working with Plastics

Working with Plastics

2 ( a ) and ( b ) ) with very fine blades and small teeth can be used for cutting cast
acrylic sheet materials . Their use is ... blade anchorage points which make this
saw easier to manoeuvre when cutting intricate shapes . 4 . HACK SAW ( Fig .

Author: George Gaszner

Publisher:

ISBN: UOM:39015007202958

Category: Plastics craft

Page: 60

View: 862

Categories: Plastics craft

Custom Draperies in Interior Design

Custom Draperies in Interior Design

With a 3 - inch drift , if each width were cut by the same pattern from one side to
the other and the pattern matched , this ... be multiplied to 9 inches when three
widths were matched , and the new bottom would have to be drawn at that point .

Author: Mary Neal

Publisher: Elsevier Publishing Company

ISBN: 0444006400

Category: Draperies in interior decoration

Page: 208

View: 345

Categories: Draperies in interior decoration

The Welding Encyclopedia

The Welding Encyclopedia

In general , preheating of any steel will improve the economy of cutting and
prevent acute hardening . ... In addition to the usual preheating at the point where
the cut is started , preheat is also applied along the entire face of the cut until it is
 ...

Author:

Publisher:

ISBN: UOM:39015006422748

Category: Welding

Page:

View: 915

Categories: Welding

Cutting Point Solving the Jack the Ripper and the Thames Torso Murders

Cutting Point  Solving the Jack the Ripper and the Thames Torso Murders

In this book, journalist and researcher Christer Holmgren explains why the murders were never cleared up and names the East End carman Charles Lechmere as the culprit behind both series of murders.

Author: Christer Holmgren

Publisher: Timaios Press

ISBN: 9187611368

Category: History

Page: 206

View: 206

In Victorian London, long before the term serial killer was coined, two series of murders played out that have captured the imagination of the whole world. The Jack the Ripper murders and the Thames Torso murders, so similar to each other, took place during the same period in London and have never been solved. In this book, journalist and researcher Christer Holmgren explains why the murders were never cleared up and names the East End carman Charles Lechmere as the culprit behind both series of murders. He was a man who claimed he found Jack the Ripper's first victim, but avoided to give his true name to the police. In the 2014 TV documentary The Missing Evidence -- Jack the Ripper, the case for Charles Lechmere as the Ripper was outlined. In it, a prominent barrister stated that the case would have been good enough to take to court. This makes Lechmere stand out amongst the many suspects named over the years: his is a case where it can be practically demonstrated how he is linked to the murders. More recent research suggests that Charles Lechmere also needs to be held responsible for the Thames Torso murder series, spanning the years 1873-1889. Guided by the help of experts, Holmgren links the cases together, establishes the underlying inspiration behind them, and beckons the originator of the murders out into the light, a century after his death
Categories: History

Machinery and Production Engineering

Machinery and Production Engineering

675 MACHINERY SEPTEMBER 3 , 1925 Cutting Speeds of Crank Crank
Shapers By K. H. C. C ' UTTING speeds in feet per ... Since the cutting speed on a
crank shaper varies at every The point R represents the centre of the driving gear
, and ...

Author:

Publisher:

ISBN: UIUC:30112007932327

Category: Machine design

Page:

View: 894

Categories: Machine design

American Machinist

American Machinist

Table 1 covers point - to - point features to a system after it has been mensions ,
the cutting tools of contour ... Some NC functions are essential to closely spaced
points connected by Table 3 applies to turning machines , all types of machines ...

Author:

Publisher:

ISBN: UVA:X001679331

Category: Mechanical engineering

Page:

View: 576

Categories: Mechanical engineering

1979 5th IECI Annual Conference Proceedings

1979 5th IECI Annual Conference Proceedings

M PG REV COUNTER JOTTING POINT DETECT ( TG ) < CONTROLLER >
SPEED CONTROL 0/1 PI WITH CD D / 의 WITH ... The next equations indicate
the relationship between the shear position Ls and the billet cutting point LMA , -
during ...

Author: Institute of Electrical and Electronics Engineers. Industrial Electronics and Control Instrumentation Group

Publisher:

ISBN: PSU:000004456865

Category: Automatic control

Page: 380

View: 367

Categories: Automatic control

Proceedings

Proceedings

the shearing of plates is the cutting and disposal of scrap cut from the side
trimming and end cutting shears . ... The principal features of these machines is
that the tracing point is located at some distance from the cutting torch or torches .

Author: Association of Iron and Steel Engineers

Publisher:

ISBN: UOM:39015080017869

Category: Electric engineering

Page:

View: 992

Categories: Electric engineering

The Journal of the Department of Agriculture of Victoria

The Journal of the Department of Agriculture of Victoria

Then a long straight incision must be made from a point half - way between the
breast - bone sternum and throat ... the head , cheeks and face should be
skinned , and the chin split by extending the “ coming - up cut to the one made in
sticking ...

Author: Victoria. Dept. of Agriculture

Publisher:

ISBN: CORNELL:31924067358139

Category: Agriculture

Page:

View: 699

Categories: Agriculture