Structural, mechanical, and electrical engineers and other specialists, are hired by the client or the architect, who must ensure that the work is co-ordinated to construct the design.

It was first described in 1837 as the successor to Babbage's Difference Engine, a design for a mechanical computer.

Swedish engineers Georg and Edvard Scheutz, inspired by a description of the difference engine, created a mechanical calculation device based on the design in 1853.

The mechanical and logic design was worked out by Dr. Atanasoff over the next year.

They quickly became the Achilles ' heel of the system because of their combination of an overly complex mechanical design with a very low-cost internal flex circuit system.

In the early 1860s, Frenchmen Pierre Michaux and Pierre Lallement took bicycle design in a new direction by adding a mechanical crank drive with pedals on an enlarged front wheel ( the velocipede ).

Eversharp, a maker of mechanical pencils, teamed up with Eberhard Faber in May 1945 to license the design for sales in the United States.

Bistability as applied in the design of mechanical systems is more commonly said to be " over centre " -- that is, work is done on the system to move it just past the peak, at which point the mechanism goes " over centre " to its secondary stable position.

A system can be mechanical, electrical, fluid, chemical, financial and even biological, and the mathematical modeling, analysis and controller design uses control theory in one or many of the time, frequency and complex-s domains, depending on the nature of the design problem.

Control engineering is the engineering discipline that focuses on the modeling of a diverse range of dynamic systems ( e. g. mechanical systems ) and the design of controllers that will cause these systems to behave in the desired manner.

Also includes an e-book library of classic texts on mechanical design and engineering.

He was followed by Gottfried Leibniz who spent forty years designing a four-operation mechanical calculator, inventing in the process his leibniz wheel, but who couldn't design a fully operational machine.

Although Babbage's design was technically feasible, no one had built a mechanical device to such exacting standards before, so the engine proved to be much more expensive than anticipated.

Diesel's inventions have three points in common: they relate to heat transfer by natural physical processes or laws ; they involve markedly creative mechanical design ; and they were initially motivated by the inventor's concept of sociological needs.

As turbocharged or supercharged engines produce more power for a given engine size as compared to naturally aspirated engines, attention must be paid to the mechanical design of components, lubrication, and cooling to handle the power.

Also includes an e-book library of classic texts on mechanical design and engineering.

Very different mathematical treatments apply to the design of filters termed infinite impulse response ( IIR ) filters, characteristic of mechanical and analog electronics systems, and finite impulse response ( FIR ) filters, which can be implemented by discrete time systems such as computers ( then termed digital signal processing ).

In addition, an open bolt indicator, such as the yellow safety flag distributed by CMP may be inserted in the barrel ( needed if the firearm design lacks a mechanical hold-open device ).

Geotechnical engineering uses principles of soil mechanics and rock mechanics to investigate subsurface conditions and materials ; determine the relevant physical / mechanical and chemical properties of these materials ; evaluate stability of natural slopes and man-made soil deposits ; assess risks posed by site conditions ; design earthworks and structure foundations ; and monitor site conditions, earthwork and foundation construction.

The series of cards could be changed without changing the mechanical design of the loom.

One original design incorporated a large, heavy, solid iron flywheel with a mechanical friction brake, developed by John Harrison of Leichhardt Rowing Club in Sydney, later to become a Professor of Mechanical Engineering at the University of New South Wales.

Because of the compact size of the pistons and mechanical simplicity of design, these models are typically not as large or as expensive as the others types.

A major aspect of the MIPS design was to fit every sub-phase, including cache-access, of all instructions into one cycle, thereby removing any needs for interlocking, and permitting a single cycle throughput.

: Logo design: White interlocking ' S ' and ' D '

The design consists of interlocking circles, pieced with small arcs of fabrics.

Cathedral Windows is a block type that uses reverse appliqué using large amounts of folded muslin, and features modular blocks of an interlocking circular design that frame small squares or diamonds of colorful light-weight cotton.

An oddity of the design is that it depicts nineteen interlocking gears.

The design has some similarities to the earlier Eddystone Lighthouse designed by John Smeaton which was also built on an offshore reef using interlocking stones, but also contained newer features, such as rotating lights alternating between red and white.

The PHC was built in 1970 by fitting interlocking logs together from a Norwegian design.

Similarly, Palladio created a new configuration for the design of Catholic churches that established two interlocking architectural orders, each clearly articulated, yet delineating a hierarchy of a larger order overriding a lesser order.

On Tuesday, 18 November 1924, Chanel, Inc. filed trademark applications for the typeset mark Chanel and for the distinctive interlocking CC design plus word mark.

Weaving strategies for avoiding slit formation, such as interlocking, produce a more blurred design image.

Compared to Saxby's design, Toucey and Buchanans ' interlocking mechanism was more cumbersome and less sophisticated, so was not implemented very widely.

New York Times writer Joe Queenan criticized the mall's Brutalist exterior for lacking any sense of design or theme, and characterized its rectangular layout as " a series of interlocking coffins ".

Frogs are made by looping and interlocking the cording or fabric tube into the desired design, then securing the places where the cords touch by hand-sewing.

The design involved driving four rows of interlocking steel piles into the ground, using a vibrating pile driver to minimise the noise nuisance which is normally associated with hammer action pile driving.

The concept also featured a cobra roll inversion and interlocking corkscrews, signature design elements for B & M coasters but ones not used before or since by Arrow.

This system of interlocking weaves, known as kadiyal, is done so that there are no extra floats on the back of the motif thus making the design nearly reversible.

This design, referred to as a step-through frame, allows the rider to mount and dismount in a dignified way while wearing a skirt or dress.

The earliest design ( dubbed kapala in Polish, more properly called " kapsel legitymacyjny " or " ID cap ") consisted of a tin-made 30 × 50 mm rectangular frame and a rectangular cap fitting into the frame.

Other shapes include a frame design ( tar, Bodhrán ), truncated cones ( bongo drums, Ashiko ), goblet shaped ( djembe ), and joined truncated cones ( talking drum ).

In the late 1960s, the British motorcycle industry was unable to support a national team to compete in the International Six Days Trial so, Cheney hand built a limited number of ISDT Cheney-Triumphs using his own design of twin down-tube frame with a specially tuned Triumph 5TA engine.

The design was relatively simple, consisting of racks of parallel rails on which rockets were mounted, with a folding frame to raise the rails to launch position.

The loggia was designed to elegantly frame the view as the observer slowly admired the gardens, and was a new design in 16th century, only recently imported from Italy.

The design is self-conscious, overcharged with rich, artificially " natural " detail in physically improbable juxtapositions of jarring scale changes, overwhelming as a mere frame: Mannerist.

With the advancement of technology and design in 2010 major revolver manufacturers are coming out with polymer frame revolvers like the Ruger LCR, Smith & Wesson Bodyguard 38, and Taurus Protector Polymer.

Polymer technology is considered one of the major advancements in revolver history because the frame has always been metal alloy and mostly one piece frame design.

He also spread his artistic boundaries and began to design furniture, often modeled after Pompeian or Egyptian motifs, illustrations, textiles, and frame making.

Using a wire frame model allows visualization of the underlying design structure of a 3D model.

Mendes ' dominating visual style was deliberate and composed, with a minimalist design that provided " a sparse, almost surreal feeling — a bright, crisp, hard edged, near Magritte-like take on American suburbia "; Mendes constantly directed his set dressers to empty the frame.

Edison claimed exclusive patent rights to his design of 35 mm motion picture film, with four sprocket holes per frame, forcing his only major filmmaking competitor, American Mutoscope & Biograph, to use a 68 mm film that used friction feed, not sprocket holes, to move the film through the camera.

Although the first design was patented as early as 1908, the first commercial 35 mm camera was the 1913 Tourist Multiple, for movie and still photography, soon followed by the Simplex providing selection between full and half frame format.

* Four point " belt and suspenders ": An experimental design from Ford where the " suspenders " are attached to the backrest, not to the frame of the car.

In this shutter design, the whole film frame is exposed at one time.

It was described as a two story, stately looking frame building of colonial design.

Though the outward appearance of the engine is the same as before, new quality control techniques employ better alloying and casting, better engineering tolerances, and better paint and chrome while retaining the advantage of continuity with the inherently balanced design of a horizontally opposed flat twin engine with roller bearings in a solid frame.

His focus on the importance of balance and harmony extended beyond the frame to the placement of his paintings to their settings, and further to the design of an entire architectural element, as in the Peacock Room.

For 1964, the Tempest and LeMans ' transaxle design was dropped and the cars were redesigned under GM's new A body platform ; frame cars with a conventional front-engine, rear-wheel-drive layout.

An aeronautical engineer as well as a pilot, he began his engineering career with de Havilland Aircraft Company but, dissatisfied with the lack of opportunities for advancement, he took a position in 1924 with Vickers Ltd., where he was involved with the development of airships and structural geodetic frame design.

File: Celtic blackwork in frame. jpg | Framed Celtic design in blackwork