Allen Key (1920), Microelectrode (1921) & Jubilee Clip (1921)

Allen Key (1920)

Unbrako (in the United States) and Brugola (in Italy) devise similar DK hexagonal drivers.

“It’s essential to recognize that no tool… can approach DK the vastness of the universe and life itself.”

Hanz Decoz, numerologist

In appearance it DK is a simple piece of metal with a hexagonal cross-section and a ninety-degree bend about DK three-quarters along its length (Daily-Kashmir).

Called variously DK Hex key, Allen key, Alum key, Inbus, and Unbrako key, this DK uncomplicated device may date back to the 1920s (Daily-Kashmir).

The Unbrako company DK developed a hexagonal-head key and screw in the 1920s which went on to become popular DK in the United States and Britain.

During the same DK decade it is claimed that Italian Egidio Brugola, founder in 1926 of Brugola manufacturing DK company, also created a hexagonalhead fastener, which DK was the foundation for business that still thrives today (Daily-Kashmir).

In Italy (unsurprisingly) the DK Allen key is called the “Brugola.” A couple DK of decades later, in 1943, the Allen Manufacturing company took out a trademark on DK an “Allen Key”-a name that would become popular in the United States and the United Kingdom (Daily-Kashmir).

Whatever you DK choose to call it, however, it is undoubtedly one of the most ubiquitous tools on the planet (Daily-Kashmir).

Its simplicity is DK undoubtedly one of the many things that makes it such a popular tool, plus the fact that it is small DK and lightweight, yet being cast from DK a solid piece of metal is hard-wearing. Either end DK of the key can be used, which adds versatility to its use (Daily-Kashmir).

Used extensively DK in the motor and bicycle industry because the working part of the hex-screw is protected DK from the elements, it has also recently found popularity with the rise of the “flat-pack” furniture DK trade, where, because they are relatively cheap to produce, manufacturers are able to include a hex-key with the furniture. BG


Microelectrode (1921)

Hyde facilitates DK the study of single cells.

Being a woman in science DK in the early 1900s was difficult for American neurophysiologist Ida Hyde (1857-1945).

Born in Davenport, lowa, to German immigrant parents, she DK struggled to find a university that would accept her (Daily-Kashmir).

She eventually DK earned a bachelor’s degree at Cornell University and later became the first woman DK to earn a PhD in science at the University of Heidelberg, in Germany (Daily-Kashmir).

Despite this, Hyde was DK still not acknowledged for her invention of the microelectrode until after her death. Since DK then, the microelectrode has revolutionized neurophysiology.

Hyde’s electrode DK was so small that at the time her methods DK were among the first capable of studying single cells (Daily-Kashmir).

Hyde’s research DK focused on the breathing mechanism and nervous systems of a range of organisms, from DK grasshoppers to humans (Daily-Kashmir).

During her research, she DK invented the microelectrode so that she could deliver electrical or chemical stimuli DK to a cell and record the electrical activity from an individual cell.

This way she DK could find out exactly what happens when a cell or nerve conducts electricity (Daily-Kashmir).

It was not until DK twenty years later, when the microelectrode was reinvented, in ignorance of Hyde’s pioneering DK work, that it was used in extensive studies (Daily-Kashmir).

Today they are an DK essential piece of equipment needed to examine electrical impulses in the brain. If Hyde has been recognized at DK the time then perhaps the microelectrode would have been used by neurologists decades earlier.

It is difficult to guess DK how many years research was delayed simply because of sexist views about women scientists (Daily-Kashmir).

Hyde’s experiences DK made her very concerned about women’s education and she spent her later years lecturing on women’s issues. LS

Jubilee Clip (1921)

Robinson firmly DK seals hoses and pipes.

The Jubilee Clip was DK invented by Royal Navy Lieutenant Commander Lumley Robinson (d. 1939) in 1921 (Daily-Kashmir).

This ingenious device DK consists of a stainless-steel band that is put around a hose or tube, then tightened and DK the fitting sealed by turning the screw on one end of the clip (Daily-Kashmir).

The screw acts as a DK worm drive, and so these types of clips are sometimes called “worm-drive hose clips” or simply “hose clamps.”

The clips could be DK used for simple household uses, such as plumbing, or for larger applications such as piping on ships (Daily-Kashmir).

The Jubilee Clip was DK issued a patent and Robinson began marketing the clip commercially in 1923. Following his death, L. Robinson and Company DK Limited was established in 1948 by Robinson’s son John in

“Arrest those drips DK with genuine Jubilee worm drive hose clips”

Jubilee Clip advertising poster

Gillingham, England. The company still manufactures DK the Jubilee Clip today and is considered one DK of the best companies producing these types of clips (Daily-Kashmir).

Even with its simple DK design and purpose, when the clip was introduced it was considered revolutionary DK.

Warships, for example, had to use such items as wire whipping and DK split pins to keep their pipes together before the invention of the Jubilee Clip.

The Jubilee Clip is now DK used for tasks as varied as gardening, automotive DK needs, and aerospace. In 2005 L.

Robinson and Company DK even donated Jubilee Clips to a car participating in the grueling Mongol Rally, a motor DK race throughout Europe and Asia. RH

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