The Story in a Pin[25]

A pin, so common and so cheap today, was once so expensive that only the

wealthy could afford even a few. The term pin-money dates from that time

and originally came from the allowance a husband gave his wife to

purchase pins.

From an historical point of view, it appears that the need of something

with which to fasten together pieces of cloth and like material has been

met from ancient times by various devices. Among the remains of the

bronze age are found pins and brooches of bronze. In Egyptian tombs have

been found elaborate and costly pins, which range in sizes from two

inches to seven or eight inches long, and have large gold heads or bands

of gold around the upper end. Designs were often worked on these heads

and bands. The largest of these pins were probably used for fastening

the hair. Till the middle of the sixteenth century the poorer class in

England used rude skewers of wood, while the more fortunate had pins

made of gold, silver and brass. The Indians, in the ancient cities of

Mexico, satisfied their need for pins by using the thorn of the agave.

As early as 1483, pins were important enough in England to warrant the

passing of a law by Parliament prohibiting their importation. By 1540,

however, they were being imported in large quantities from France.

Parliament again passed a law regarding pins in 1543. This act provided

that “no person shall put to sale any pins, but only such as shall be

double-headed, and have the heads soldered fast to the shank of the pin,

well smoothed, and shanks well shapen, the points well round filed,

canted, and sharpened.” Some pins of good quality were made at this

time, but a large portion of those against which the legislative

enactment was directed were made of iron wire, blanched and passed for

brass pins. Only three years after this prohibitory law was passed it

became obsolete because of the improvements which had been made in the

production of these articles. England continued to receive its

supply from France until John Tilsby began their manufacture in

Gloucestershire. His business increased to such an extent that in a few

years he had 1,500 people in his employ. In 1636 the pinmakers of London

formed a corporation and established the industry of Bristol and

Birmingham. This latter city is still the center of the industry in

England.

[Illustration: THE FIRST PIN IS A FLAT-HEADED COPPER PIN PROBABLY USED

FOR FASTENING HAIR. THE SECOND IS A STAR-HEADED BRONZE PIN. BOTH ARE OF

THE TYPES WHICH HAVE BEEN FOUND AMONG THE REMAINS OF THE BRONZE AGE. THE

THIRD PIN IS A HANDMADE PIN OF THE SEVENTEENTH CENTURY]

During this period the pins were made with two coils of wire fastened at

one end of a length of wire, the other end of which was sharpened. First

a wire, somewhat finer than that which was to be used for the pin, was

coiled around a spit on a lathe. This was cut up into sections, each

consisting of two turns. These coils were then annealed or softened and

placed in a heap. Boys stuck the ends of the pins, which had been cut to

the proper length, into this pile until a coil stuck. A workman pressed

this coil in a die to make it hold to the pin. The head was then

soldered and the other end of the pin filed and sharpened. Finally the

pin was straightened and blanched or whitened.

In the United States the colonists early felt the need of local

production. The colonial legislature of Carolina offered prizes in 1775

for the first native-made pins and needles. The first American pins were

made in Rhode Island, during the Revolution, by Jeremiah Wilkinson.

About the same time, Samuel Slocum made pins in Providence. These were

handmade with twisted wire heads.

[Illustration: A VIEW OF THE PIN MACHINE ROOM IN A MODERN PINMAKING

PLANT

There are many types of pin machines which make anywhere from ninety to

three hundred pins a minute, depending on the quality of the pin made.]

Pinmaking machines were first invented in the United States. During the

War of 1812, the industry was started because of the difficulty of

getting pins from England, where most of them were made. The industry

was not successful, however, till 1836, when the Howe Manufacturing

Company was formed at Birmingham, Conn. It is a curious coincident that

the first successful American pin manufacturing company, making the new

machine-made pins, should be established in the Connecticut town of the

same name as the English city which had been the center of pinmaking for

nearly two hundred years.

In 1817 a paper was filed at the patent office by Seth Hunt, describing

a machine for making pins with “head, shaft, and point in one entire

piece.” This machine, however, did not come into use. Lemuel W. Wright,

of New Hampshire, secured, in 1824, an English patent for a machine for

making solid-headed pins. This was the beginning of the present

industry. A factory equipped with Wright’s machines was established in

London, but was not successful. Daniel Foot-Taylen, of Birmingham,

purchased this equipment and secured an extension of Wright’s patents

for five years from 1838. He carried the production of machine-made pins

to a commercial basis. Wright’s machines, however, did not complete all

operations. Dr. John Neland Howe, a physician of Bellevue Hospital, New

York City, formed a company in 1832 for the manufacture of pins. This

concern was not successful, but in 1835 a second company was formed by

Dr. Howe, who had great faith in the future of the industry. Nine years

later, Samuel Slocum, of Connecticut, invented a new machine for

sticking the pins on papers.

[Illustration: THE WHITENING ROOM, WHERE THE PINS ARE CLEANED AND PLATED

In the tumbling barrels the pins are cleaned and dried by tumbling in

sawdust which has been heated in the ovens in the center background.]

Since that time there have been many pin machines developed, each

accomplishing the same result in slightly different ways. In each case a

special stiff pin wire is drawn into the machine from a large hank,

which is placed on a drum on the machine. The wire is first passed

through a series of rapidly revolving, straightening rolls which take

out all twists and kinks. The proper length of wire is fed into the

machine automatically, and the end is gripped by a set of jaws. A small

part of the end of the wire extends beyond the jaws. This is struck

several rapid blows by a die called the header. After the head is thus

formed, the wire is cut off to the proper length and is then ready to be

pointed. It is now carried along by a shaft having a screw thread, and

is made to revolve rapidly by a belt which passes over it. The end to be

pointed passes over a series of coarse, medium and fine revolving files

or cutters. The pin now drops into a pan, ready to be finished after

being inspected.

In the finishing room, the pins are put into a revolving or tumbling

barrel and are rolled in sawdust, which absorbs all the oil, leaving

them clean and bright. They are now dropped through a blower, where the

sawdust is separated from the pins. The whitening is done by boiling the

pins in a large copper kettle, which also contains layers of grained tin

and a solution of argol or bitartrate of potash. After boiling for five

or six hours, they have a thin coating of tin, which gives them their

silvery appearance. Again they are cleaned, this time being washed in

clean water, then tumbled in strong soap water, and finally tumbled in

hot sawdust to dry them. The pins are separated from the sawdust as

before. From there the pins go to the sticking department, where they

are stuck on papers as you buy them. The sticking machine is of a simple

construction, but is wonderful in operation, and requires no attention

by the operator, except to keep it supplied with pins and papers.

[Illustration: SIZES]

The pins are put into a vibrating hopper, which slopes slightly towards

the sticking machine. The conductor from the hopper to the machine is

made of two strips of steel, down which the pins, held by their heads,

slide. They are taken from the conductor by a screw thread and fed to

the carrier, which takes thirty pins at a time and places them in front

of a set of thirty punches. They are then forced along thirty grooves in

the steel clamps, which crimp the paper, and on through the crimp. Thus

a whole row of pins is stuck at once. The paper is now advanced the

proper distance, and another row is stuck. When the center of the paper

is reached, after six rows have been stuck, the machine automatically

spaces the paper so as to skip the space used for the brand name. Then

six more rows are stuck, and the operator removes the completed paper

and inserts another without stopping the machine. These papers are

inspected to make certain that no poorly made pins have gotten by the

former inspection, are rolled and packed, usually in boxes of twelve

papers each.

Pins today are made in many sizes from the 3-1/2-inch stout blanket pins

down to the fine, slender, bronze pins used by entomologists, 4,500 of

which pins make an ounce. Toilet pins are usually made in six sizes as

shown in the illustrations. Besides the common or toilet pins, there are

today numerous special bank and desk pins which are made to meet special

requirements.

Pin production in the United States has reached a high stage of

development. The number of pins made in 1914 reached the tremendous

total of 25,000,000,000. These figures are almost too great for

comprehension. If all the pin wire used for these 25,000,000,000 pins

were in one piece it would go around the earth fifteen times. Safety

pins, hooks and eyes, and hairpins, are generally made by pin concerns.

Each of these different articles require very ingenious machines. Many

of them are almost human in their operation.

* * * * *

The popular name of the prominence seen in the front of the throat in a

man is called the “Adam’s apple” because of the story in the Old

Testament, telling of the eating of the forbidden fruit of the tree of

knowledge by Adam, a piece being supposed to have lodged in his throat

where the bulge appears.

[Illustration: AN ALPINE GLACIER]

[Illustration: THE MER DE GLACE

The upper view shows the method of crossing a glacier. Each of the

climbers is carrying an alpenstock, or staff with ice ax at one end and

spike at the other. The lower view is the famous sea of ice in

Switzerland.]

[Illustration: MOUNT RAINIER, WASHINGTON

One of the largest glacial systems in the world radiating from a single

peak is situated on this mountain in western Washington.]

How are Glaciers Formed?

Away up in the high valleys formed among the peaks of the tallest

mountain ranges of both the Rocky Mountains and the mountains of Alaska,

as well as those in Switzerland and European countries, the snow freezes

into great solid masses because of the intense cold, and is forced by

its own pressure into vast fields and mountains of ice. This ice is not

like that produced by the freezing of water, but resembles more a very

hard, solid form of snow, being composed of thin layers filled with air

bubbles and more brittle and less transparent than the ice we are

accustomed to see. Glaciers exist in all zones in which mountains rise

above the snow-line, that is, the height where it is so cold that there

is always snow.

We all know that if we press two pieces of ordinary ice together each

piece will melt at the place where it touches the other and just in that

same way the pressure of the ice above them causes glaciers to be

continually moving downward, frequently reaching the borders of

cultivation even. As they descend they also experience a gradual

diminution from the action of the sun and rain, and from the heat of the

earth. Investigation has shown that they move very much like a river,

the middle and upper parts faster than the sides and bottom, similar to

the way in which a mass of thick mortar or a quantity of pitch flows

down an inclined trough. The rate at which a glacier moves generally

varies from eighteen to twenty-four inches in a day.

The Glacier National Park is the latest addition to the series of great

natural attractions which the United States Government has been

acquiring for years. It lies in Northern Montana, between the Canadian

border and the line of the Great Northern Railroad, and contains about a

million acres of natural wonders, ranging from verdant valleys and

wooded heights to glacial peaks. There are numerous glaciers and

mountain lakes and the locality presents many examples of sublime

scenery. The City of Tacoma, Washington, is situated in the valley below

Mt. Rainier and commands a wonderful view of that mountain, on which

there is situated one of the largest glacial systems in the world

radiating from any single peak.

One of the most famous glaciers of the Alps is the Mer de Glace,

belonging to Mont Blanc, in the valley of Chamouni, about fifty-seven

hundred feet above the level of the sea. Those of the Andes and the

Southern Alps of New Zealand are conspicuous, and they abound in Norway,

Iceland and Spitzbergen, but it is more especially in the chain of Monte

Rosa that the phenomena of glaciers are exhibited in their greatest

wonder, as also in their most interesting phases from a scientific point

of view.

How Large are Molecules?

When a great scientist named Sir William Thomson was asked about the

size of a molecule, he replied: “If a drop of water were magnified to

the size of the earth, the molecules would each occupy spaces greater

than those filled by small shot and smaller than those occupied by

cricket balls.” That gives us about as clear an idea as it is possible

to get of the size of molecules. And yet molecules are made up of even

smaller particles, called atoms. An atom is the smallest division of

anything that we know about now.

A molecule of water is made up of three atoms. Evaporation of water

consists of the movement of these atoms in such a way as to make the

liquid water change into a gas. Freezing water into ice is caused by

making the molecules, and, in turn, the atoms, stick to each other. It

takes a great deal of power to separate the molecules in water, and for

this reason water was long regarded as something which could not be

divided up, or, in other words, a basic element, such as the oxygen in

the air.

The Wonder Book of Knowledge The Marvels of Modern Industry and Invention, the Interesting Stories of Common Things, the Mysterious Processes of Nature Simply Explained · 第 51 / 162 题