A thread ( the “ weft thread ”) is then passed ( at a right angle to the warp ) through the space ( the “ shed ”) between the lower and the upper warp threads.

To make one stitch, the machine lowers the threaded needle through the cloth into the bobbin area, where a rotating hook ( or other hooking mechanism ) catches the upper thread at the point just after it goes through the needle.

The hook mechanism carries the upper thread entirely around the bobbin case, so that it has made one wrap of the bobbin thread.

Then the take-up arm pulls the excess upper thread ( from the bobbin area ) back to the top, forming the lockstitch.

Thread tension correct and incorrectIdeally, the lockstitch is formed in the center of the thickness of the material — that is to say: ideally the upper thread entwines the lower thread in the middle of the material.

The thread tension mechanisms, one for the upper thread and one for the lower thread, prevent either thread from pulling the entwine point from out of the middle of the material.

The rank insignia of a corporal is a two-bar chevron, point down, worn in gold thread on both upper sleeves of the Service Dress jacket ; in rifle green ( Army ) or dark blue ( Air Force ) thread on CADPAT slip-ons for Operational Dress ; in old gold thread on blue slip-ons on other Air Force uniforms ; and in gold metal and green enamel miniature pins on the collars of the Army dress shirt and outerwear coats.

The two lower loops are then lifted over the two upper loops using either the fingers or a stick until they come over the horns, and the thread behind the lucet is pulled to tighten the knot.

The tip of the upper looper passes behind the lower looper and picks up the lower looper thread and needle thread.

As the upper looper continues to the left, it holds the lower looper thread and needle thread in place.

# The needle again begins its downward path passing behind the upper looper and securing the upper looper thread.

Embroidered rank badges are worn in " CF gold " thread on rifle green ( Army ) or Air Force blue ( Air Force ) melton, stitched to the upper sleeves of the Service Dress jacket ; as miniature gold metal and rifle-green enamel badges on the collars of the Army dress shirt and Army outerwear jackets ; in " old-gold " thread on Air Force blue slip-ons on Air Force shirts, sweaters, and coats ; and in tan ( Army ) or dark blue ( Air Force ) thread on CADPAT slip-ons on the Operational Dress uniform.

From the upper end of the lake the river issues through the Nidau-Büren channel and then runs east to Büren.

This is entirely feasible in the warm, ductile lower crust where rocks are easily deformed, but runs into problems in the upper crust which is far colder and more brittle.

The main sequence is visible as a prominent diagonal band that runs from the upper left to the lower right.

In its upper and middle section it runs in valleys of the German Highlands.

By transferring upper triangularisation of operators of finite-dimensional complex vector space, there is an internal orthonormal Hilbert space basis for where runs from to, such that each of the corresponding-dimensional subspaces is-invariant.

* Bend ( heraldry ), a colored band that runs from the upper left ( as seen by the viewer ) corner of the shield to the lower right

From this point a brook ( called the Beret-Garona ) runs for 2. 5 km until the bed of the main upper Garonne valley.

It enters Backergunje near the north-west corner of the district, whence it forms its western boundary, and runs south, but with great windings in its upper reaches, until it crosses the Sundarbans, and finally falls into the Bay of Bengal by a large and deep estuary, capable of receiving ships of considerable size.

A feature unique to the hornbills is the casque, a hollow structure that runs along the upper mandible.

It links the upper town ( the historical centre, located on a plateau ) with the lower town, has three stations and runs on rubber tyres.

* Lewes River, previous name of the upper portion of the Yukon River which runs through Yukon, Canada, and Alaska, USA.

Piedmont's major streets include Oakland Avenue, which runs from Piedmont's small city center down into Oakland ; Highland Avenue, which divides Piedmont into upper and lower sections ; Moraga Avenue, which runs near the city's northern border ; and Grand Avenue, which runs near Piedmont's western border.

The upper Trinity River offers a classic Class III run with moderate rapids, followed by the Burnt Ranch Gorge, which is one of the toughest runs in the entire state.

Other features of Suttons Bay Township include Lake Leelanau on its southwestern corner, which can be accessed by taking M-204 west to the community of Lake Leelanau, where the channel runs between Lake Leelanau's upper and lower lakes.

The upper part of the Wisconsin River runs through the town, and there are several lakes that dot the area.

Generally playing at mezzoforte volume, he employed the entire keyboard from deep bass tones to sonorous mid-register chords to sparkling upper register runs.

The upper limit of the Glomma valley farms is variable, but typically runs about in Østerdalen, slightly lower than in Gudbrandsdal, which reflects the colder climate.

The upper Mole catchment is dominated by a single broad terrace, which runs continuously from the entry to the Mole Gap as far south as Tilgate Forest.

( Note: SMB, an upper layer, is a service that runs on top of the Session Service and the Datagram service, and is not to be confused as a necessary and integral part of NetBIOS itself.

Istra runs through the Ister valley, well known for the Trollstigen road in its upper parts.

According to UNESCO, the upper regions of the Salween in China, where it runs parallel to the Mekong and Yangtze rivers, " may be the most biologically diverse temperate ecosystem in the world ".

It is believed that distinct runs of salmon destined for specific tributaries occur at different times of the year, with those fish headed for the upper reaches of the watershed entering the river earlier than those that spawn in the lower tributaries.

so that a line running down the length of the South marking the upper limits of tidewater would roughly divide the Old South from the new, but with, of course, important minority enclaves.

The line of an eyebrow, the color of the skin, a ghazal from Hafiz, the purity of spring water, the long afternoon among the boughs which crowd the upper story of a pavilion -- these things are noticed, judged, and valued.

The only extended view possible to anyone less tall than the fences was that obtained from an upper bough of the apple tree.

At these times he felt a kind of pain in his upper chest, but it was an objective pain, in no way different from others in intensity and not different in kind ; ;

Warren eased his rifle's safety off and gently, slowly sneaked another clip of ammunition from one of the cloth bandoleers that marked the upper part of his body with an Aj.

This is a phenomenon familiar to all radio listeners, resulting from reflection of skywave signals at night from the ionized layer in the upper atmosphere known as the ionosphere.

In the lower center rack an 8-channel recorder indicates the percentage of carbon dioxide and nitrogen from the upper and lower lobes of one lung, the total volume of inhalation per breath, the flow of air from both lobes, and the pressure of the two lobes with respect to each other.

First, the upper portion requires series of films for every child, consisting of those from Hand, Elbow, Shoulder, Knee, and Foot.

Second, the upper portion permits comparison of maturity levels of an equal number of growth centers from the long, short, and round bones of the five regions.

Pains in the back of the leg and in the abdomen were prevented from reaching the upper body by tying a rope about the patient's waist.

To hold them was an essential part of French policy, for they controlled the upper termini of the routes from the north to Mobile.

The earth was a little heavy and I had to stop once and clean the plowshares because they were not scouring properly, and I did not look back towards the place until I had turned the corner and was plowing across the upper line of the large field, a long way from where I had stopped because of the snake.

Locating the lowercase letters in columns 6 and 7 caused the characters to differ in bit pattern from the upper case by a single bit, which simplified case-insensitive character matching and the construction of keyboards and printers.

Clockwise from upper left: a self-portrait from Vincent van Gogh, an African Chokwe people | Chokwe statue, detail from the The Birth of Venus ( Botticelli ) | Birth of Venus by Sandro Botticelli and a Japanese Shisa | Shisa lion

They are likely to have lived on areas of the ocean floor that received little or no light and fed on detritus that descended from upper layers of the sea to the bottom.

The Egyptians eventually withdrew from the region after failing to gain the upper hand over the Hittites, and becoming wary of the power of Assyria, which had destroyed the Mitanni Empire.

They are distinguished by the nerve cells affected ( upper and lower motor neuron ), and the symptoms that result from this damage:

The line running from the upper left to lower right reads mt l b < sup > c </ sup > lt.

Rock wall foundations and beam holes and " cavates " carved into volcanic tuff remain from upper floors.

All identifiable fossils of Albertosaurus sarcophagus are known from the upper Horseshoe Canyon Formation in Alberta.

Alligators differ from crocodiles principally in having wider and shorter heads, with more obtuse snouts ; in having the fourth, enlarged tooth of the under jaw received, not into an external notch, but into a pit formed for it within the upper one ; in lacking a jagged fringe which appears on the hind legs and feet of the crocodile ; in having the toes of the hind feet webbed not more than half way to the tips ; and an intolerance to salinity, alligators strongly preferring fresh water, while crocodiles can tolerate salt water due to specialized glands for filtering out salt.