Antique Key Free Stock Images

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Antique gold key with a heart-shaped head and a long beard. Keyhole. Decorative element. Hand-drawn watercolor illustration on a

Antique gold key with a heart-shaped head and a long beard. Keyhole. Decorative element. Hand-drawn watercolor illustration on a

Set of golden antique door key. Vector illustration

Set of golden antique door key. Vector illustration

Vintage windup frog toy on white. Vintage windup frog toy on white

Detail of a vintage typewriter

Minimalist keys

Keychain demonstrating old and new technology with skeleton key,thumb drive and car starter/door opener. Keychain demonstrating old and new technology with skeleton key,thumb drive and car starter/door opener

Antique mail and key

Antique mail and key

image of open antique book on wooden table with vintage key

image of open antique book on wooden table with vintage key

Vintage typewriter

Vintage typewriter in close up

Decorative metal key ring indian style. Decorative metal key ring indian style

Antique Watch with Key

Antique Watch with Key

A Traditional Korea Jewelery Box,Made of Shell Pattern,Isolated on White Background

The backside of an old alarm-clock. Clockwork keys. The backside of an old alarm-clock. Clockwork keys.

Vintage typewriter paper holder roller

Paper holder roller of an old typewriter. Paper holder roller of an old typewriter

Padlocks on a rack give a lot of luck

Vector background

Vectorized ornate tile background. Color can be change by one key color. Vectorized ornate tile background. Color can be change by one key color.

Old padlock and word key

Old padlock and keys on wooden background. Old padlock and keys on wooden background

image of open antique book on wooden table with vintage key

image of open antique book on wooden table with vintage key

Woman choosing among bronze vintage ornate keys hanging on threads against dark background

Woman choosing among bronze vintage ornate keys hanging on threads against dark background, closeup

Antique Bronze Skeleton Padlock Key

Antique Bronze Skeleton Padlock Key

3d illustration of keys isolated on white

Antique book and old key

Antique book and old key

Antique golden skeleton key

Antique golden skeleton key

Old wooden organ controls and keyboard

Old keys on white background

Antique golden skeleton key

Antique golden skeleton key

Rusted Open Padlock, isolated on white background

Doorknob with lock

Key lock with red background. Key lock with red background

Secret keys, many gold keys hanging.

Secret keys, many gold keys hanging on a black background. Secret keys, many gold keys hanging on a black background.

Typewriter keys

The keys of an old typewriter. The keys of an old typewriter

Antique vintage key

Antique vintage key

Close up of two locks

Summation Chain Close-Up

A part of the summation chain of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. By wrapping above and below a series of pulleys, the chain sums their deflections, which is a key component of computing tides. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank. A part of the summation chain of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. By wrapping above and below a series of pulleys, the chain sums their deflections, which is a key component of computing tides. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank.

Fairy bird-frame

Vectorized ornate frame with a fairy bird. All elements are separated. Color can be change by three key colors. Vectorized ornate frame with a fairy bird. All elements are separated. Color can be change by three key colors.

Keys on a white background

Handmade mulberry art paper card

Hand made paper envelope with special key lock on white backgrou. Hand made paper envelope with special key lock on white backgrou

Voilin reflection on a mirror with an old look.

Retro robot on a laptop in retro color

Black and white piano close-up

Violin on note with glasses and pencil

Closeup of an antique violin and note. Closeup of an antique violin and note

Jewelry box isolated on white background

Old wooden door painted light blue with black metal decorations. Old wooden door painted light blue with black metal decorations

Wooden home keyring with antique love shape key on woman& x27;s hand. A gift to lover and family. Home sweet home concept

Wooden home keyring with antique love shape key on woman& x27;s hand. A gift to lover and family. Home sweet home concept

Old door in the Spanish town

Piano keyboard with violin

Piano keyboard with violin,top view

Old wooden door with doorknob

Wooden close case with folk draw

Wooden close case with folk draw, focus on small metal key

Old door in the German Town

Old door in the Spanish town

Vector antique golden key on a black background.

Vector antique golden key on a black background.

Key that represents the ancient prosperity of Thailand.

Vector antique golden key on a black background.

Vector antique golden key on a black background.

old keys on a vintage book

old keys on a vintage book close up image

Black antique pad lock on white

China cup in Chinese traditional style isolated on white background(with clipping path)

Old pocket silver swiss closed watch

Old pocket silver swiss closed watch with key on white

A home in Key West with blue shutters.

Vintage Typewriter Isolated. Minimal idea concept. 3d illustration

Vintage Typewriter Isolated. Minimal idea concept. 3d illustration.

Old volumes and books

Old volumes and key on the top. Old volumes and key on the top

Antique Bronze Skeleton Padlock Key

Antique Bronze Skeleton Padlock Key

Polaroid image transfer on coloured watercolour paper. The transfer is made by seperating the negative from the print after 10-15 seconds, placing negative onto watercolour paper. Effects often textured, low key, subtle palette.
Kayaker just seen through foliage. Polaroid image transfer on coloured watercolour paper. The transfer is made by seperating the negative from the print after 10-15 seconds, placing negative onto watercolour paper. Effects often textured, low key, subtle palette.
Kayaker just seen through foliage.

Piano keys detail in the dark

Hands man play piano keys in the dark. Hands man play piano keys in the dark

Looking into the Top of Tide Predicting Machine No. 2

These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. Along the top of the photo, connecting shafts drive slotted yoke cranks on both sides of the machine. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland. These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. Along the top of the photo, connecting shafts drive slotted yoke cranks on both sides of the machine. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland.

Mechanically Adding Trigonometric Functions

These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank. These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. The U.S. government used Tide Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations. A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank.

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