The Story in a Bowling Alley[27]

From the “stone age” onward the probabilities are that man has always

had some kind of bowling game.

Bowling, as we know today, is an indoor adaptation of, and an

improvement upon, the old Dutch game of “nine-pins.” This game was

brought from Holland by those colonists who settled Manhattan Island in

1623.

Washington Irving, in his story, “Rip Van Winkle,” refers to the old

Dutch fairy tale, that the rolling thunder on the mountain tops of the

Catskill was the noise made by the rolling balls as the elfs and gnomes

engaged in their favorite pastimes of bowling.

That little section of New York City known as Bowling Green is the

original spot which, in 1732, Peter Bayard, Peter Jay and John Chambers

leased for eleven years and enclosed for a bowling green.

With the influx of German immigrants, who brought with them a game

similar to the Dutch game, additional popularity was given to the sport.

[Illustration: LOOP THE LOOP RETURN]

The game was originally played on the bare ground. The Germans used a

board about a foot wide on which to roll the ball, and then improved on

this by using cohesive mineral substances solidly packed together. At an

early date, the Dutch had covered the alley with a roof, and later

enclosed it in a rough shed, to protect it and make play possible in any

kind of weather. But, great as these improvements were over the

crudeness of previous centuries, they are not worthy of comparison with

a modern bowling academy.

In the best hard-wood section of the United States, one of the large

bowling equipment manufacturers owns about thirty thousand acres of

maple. From this raw material is gathered the chief stock that goes into

bowling alleys and the pins.

The company has its own logging crews that cut the timber and pile it on

flat cars, whence it is transported over a private railroad until it

arrives at the company sawmills. Here the raw material enters upon the

manufacturing process.

The rough stock-strips for the alley “bed,” “leveling strips,” “return

chute,” “post” and “kick-backs” are sawed out of certain of the logs.

They are then shipped to a factory where they are seasoned, being kiln

dried. The stock is next cut to the required sizes.

The bed stock is cut into strips, planed on all sides, and tongued and

grooved on the widest sides. When finished, the strips measure 3 x 1

inch. Part of the bed stock, however, is hard pine, shipped from the

Southern states in the rough boards. This is finished similar to the

maple strips.

The “kick-backs” are the two partitions, shaped somewhat like a ship’s

rudder, which form the two pit sides. Each consists of two facings of

the best maple with a core of hard but resilient wood in the middle.

They are built in this way to make the pins that fly side-wise spring

back on the bed and knock down other standing pins, and also to

withstand the exceedingly rough usage to which they are subject by the

flying pins and rolling balls.

The cushion forms the rear end of the pit. The frame is stoutly

constructed, and the face thickly upholstered with scrap leather and a

heavy but pliable covering. It swings on hinges which suspend it from

the cross bar, running from each of the kick-backs across the pit end at

the top. The cushion diminishes the force of the rolling balls and

flying pins, permitting them to fall gently into the pit.

The “gutters” are the concave boards that extend the complete length of

the alley, from the foul line to the pit, on both sides of the bed. The

purpose is to take care of the misdirected balls that roll off the bed

before reaching the pit.

The “return chute,” or “loop-the-loop return,” is the railway along

which the balls travel in their return from the pit to the bowler. It is

usually placed on the right-hand side of the alley, or between a pair of

alleys.

At the pit end, the chute is solidly constructed with a concave flanged

surface placed on the top of the kick-back. It conforms to the downward

curve of the latter, but the rail work begins at the top of the incline

and extends back to the newel post at the bowler’s end of the alley. The

flanges easily accommodate the balls when placed on the chute by the pin

boy.

The newel post is not made of a solid block, but is built up, being

veneered on the inside, as well as on the outside, to make it impervious

to atmospheric changes. The top contains a sponge cup to moisten the

fingers of the bowler.

[Illustration: CROSS-SECTION OF BOWLING BED SHOWING STEEL CLAMP]

The rails form a semicircle at the post, with the ends of the arc

pointing down the alley. A tightly stretched leather strap extends

horizontally from the upper end of the arc back to the post, where it is

fastened with a swivel screw. Half way up, from the points of the arc, a

second rail, _i. e._, the “receiver,” is built, with sufficient space

between it and the strap to allow the passage of the largest size ball.

With the momentum gained by rolling down the incline of the kick-back,

the ball rolls back on the inside of the curve until it strikes the

strap, where its course is stopped, and it drops on the receiver, ready

again for use by the bowler.

In beginning the construction of an alley, the mechanic lays the

leveling strips on which the bed is to rest. These are set at right

angles to the direction in which the bed is to lie, and must be

spirit-leveled for accuracy, and firmly fastened to the foundation. A

strip of cork carpet is then laid the full width of the alley and

extending the entire length of the bed. This is to reduce to a minimum

the sound of the balls dropping on and rolling down the bed.

On the leveling strips at the extreme side of where the bed is to lie, a

3 x 1-inch maple strip is laid, widest side downward, with its finished

one-inch edge nearest to the gutter. One end of this strip marks the

extreme end of the approach. The other end of the strip is continued by

adding other strips the full length of the bed. When these have been

carefully squared to the exact direction the alley is to run, they are

fastened to the leveling strips.

The next strip, also of maple, is tongued into the lower one, but its

continuous length extends only about five feet beyond the foul line, or

about eighteen feet from the approach end.

A bowling bed cannot be laid as an ordinary floor. It is built upon its

side and when finished resembles a wooden wall about seventy-five feet

long four inches high and three inches wide.

The approach end of the bed, approximately eighteen feet long, is

constructed of maple, with each alternate strip of the 3 x 1-inch bed

stock about eighteen inches shorter. The pit end of the bed is similarly

constructed for a distance of about six feet. The space between is

filled in with the pine strips of the same dimensions, and the alternate

long and short strips at the inner ends of the approach and pit ends

form mortices into which the pine dovetails.

[Illustration: PIT END SECTION OF BOWLING ALLEYS]

The wear on the bed occurs where the bowler walks and drops the ball and

where the ball strikes the pins; hence the hard maple. The interior is

filled with pine, which is softer, because it retains a higher polish

and prevents the rolling ball from bumping; thus throwing it from its

proper course.

The bed is thus built up for its continuous length, strip by strip, the

tongue of one strip fitting into the groove of the other, and both

nailed firmly together, until the proper width (while being built, the

height) is attained. When the bed is finished, the strips are clamped

with steel clamps, the turned-up ends of which firmly grip the sides of

the bed, thus preventing warping or spreading. While the bed is still in

this upright position, a one-inch slot is cut across where the foul line

is to rest, and holes are bored through the bed. A black composition

strip, _i. e._, the “foul-line,” is inserted in the slot and bolted

through the holes to the bottom of the bed.

At the pit end, circular slots are cut and holes bored for the purpose

of countersinking and fastening the “pin spots.” The latter are of the

same substance as the foul-line and all are sunk flush with the surface

of the bed.

This--clamping and fastening--explains the necessity for building the

bed on its side.

It is now ready to be placed into position. It is merely toppled over,

face side upward, clamped side underneath. So exact has it been built,

according to specifications and alignment, and the mass is so heavy,

that the dead weight makes it lie where it falls and only the slightest

adjustment is necessary.

The height of the leveling strips, plus the height of the bed, lift its

surface about six inches from the foundation floor. At the pins end of

the bed, this forms one of the sides and the bottom of the pit. The

bottom is floored with maple and covered with a specially prepared pit

mat, durable, yet soft, so as not to damage the balls and pins falling

upon it. The back and sides of the pit are formed by the kick-backs,

braces and cushion.

After the kick-backs are placed in position, the gutters are laid, and

then the return chute railway is laid, between and slightly above them.

At the approach end of the bed the newel post is firmly fastened to the

foundation, and the floor that is laid above the latter and flush with

the surface of the bed serves to brace the post, making it immovable.

The curved end of the chute and the receiver are then added.

The bed is then planed its entire length, sandpapered, shellaced and

polished. The remainder of the woodwork is finished in its natural color

except the gutters, which are stained mahogany and shellaced. They are

thus stained, not only for artistic effect, but to clearly define the

outer edges of the bed--a matter of great importance to the bowler when

trying to knock down the two outer pins in the third row.

In making the pins, the best selected logs are sawed into blocks about 2

x 1 feet. These are placed in a lathe and gouged out, forming the pin in

the rough. They are next turned down to size and selected for quality

and weight, after which they are kiln dried and receive a final turning

to perfect their formation, then smoothed and finished.

[Illustration: BACKUS AUTOMATIC PIN SETTERS]

The Backus pin-setter is almost human in its operation. The old way was

to hire boys to set up the pins on the spots and return the ball via the

return chute. The pin-setter relieves the boy of the major and most

time-consuming part of this work. A frame holding the machine is set up

over the spots. It is placed so high that it does not interfere with

either the flying pins or the rolling balls.

As the pins are knocked off into the gutters, or the pit, the pin boy

picks them up and lays them flat on their sides into the pockets at the

top of the machine. When a “frame” is rolled those pins standing on the

alley remain there and the machine is lowered by a balance weight

controlled by a lever. As it descends the pins are automatically set on

end, and when they rest on the spots on the alley the machine releases

them and springs up to its original position.

Wooden balls for bowling were never satisfactory. They wore out too

easily and never retained perfect rotundity. Fortunes were spent in

experimenting with other materials until at last the famous “mineralite”

ball was perfected.

Its composition is a trade secret, but its chief ingredient is rubber.

First the composition is rolled into sheets. These are then molded and

later vulcanized, being subject to terrific pressure. The balls are then

smoothed and polished.

As it is impossible to make a perfectly round ball and have the weight

equally distributed, the ball can not roll true; an ingenious device

overcomes the difficulty. The ball is set in a basin of mercury, where

it floats. Naturally, the heavier side of the ball swings to the bottom.

On the top, diametrically opposite to the center of weight, a chalk mark

is placed on the ball and it is then lifted out of the mercury.

Diametrically opposite to the chalk mark a small hole is punched into

the ball to indicate the weightiest point. Directly beneath this is

stamped the trademark of the firm.

Having ascertained the proper distance apart the finger holes are to be

bored, the ball is weighed to determine the excess of its proposed

weight when finished.

The holes are then machine bored at the respective points, sufficiently

deep to reduce the weight to exact specifications.

* * * * *

How are Artificial Precious Stones Made?

The art of manufacturing gems synthetically, that is, by the combination

of chemical elements present in the real stone, has reached a high

degree of success.

The diamond, which is an allotropic form of carbon, has hitherto

resisted attempts to reproduce it of sufficient size to have a

commercial value. By dissolving carbon in molten iron and suddenly

cooling the molten mass by a stream of water, whereupon the outer part

contracts with great force and compresses the interior so that the

carbon separates out, Moissan, the French chemist, succeeded in

isolating small crystals, none, however, as large as one-twenty-fifth of

an inch in diameter.

Experiments in the manufacture of the ruby have met with such success

that the synthetic ruby is produced of a size and of a perfection that

would place a prohibitive value on the natural stone. The ruby,

chemically considered, is crystallized alumina, or oxide of aluminum,

with a small percentage of oxide of chromium.

Sapphire is of the same material, differing from the ruby only in color.

The ruby owes its fine red color to the presence of oxide of chromium;

the sapphire its deep blue to either a lower oxide of chromium or to an

oxide of titanium.

Crystallized alumina in the different colors receives different trade

names, as Oriental emerald for the green; Oriental topaz for the yellow;

Oriental amethyst for the purple; while the water-clear, colorless

crystal is known as white sapphire.

The process of manufacture of rubies is carried on with the oxyhydrogen

blow-pipe, to whose intense heat the powdered alumina with its coloring

oxides is subjected. Rubies have been thus produced weighing twelve to

fifteen carats when cut. The average weight of the native Burmese ruby

is about one-eighth of a carat. The sapphire and the so-called Oriental

stones are prepared in the same manner, with the addition of proper

coloring matter.

The emerald and opal have not emerged from the experimental stage,

although Becquerel, a French chemist, is reported to have produced opals

from solutions of silicates with high-tension electric currents.

To be distinguished from synthetic gems are reconstructed stones, which

(as yet only done with the ruby) are pieces of the natural stone fused

together. They are very brittle.

The pearl is not produced synthetically, but many imitations exist. The

Japanese produce them by fastening a piece of mother-of-pearl in the

shells of the pearl-oyster and allowing it to remain there for a number

of years.

The turquoise, a phosphate of aluminum colored with copper, is not

synthetically produced, although various experiments with its

manufacture have been made.

[Illustration: _Reproduced by permission of The Philadelphia Museum._

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 77 / 162 题