An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is generally comfortable and adjustable and can swivel 360 degrees.

Adjustable Support for School Desks

An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office.…

A handsome reed arm chair.

Arm Chair

A handsome reed arm chair.

A hall or reception room chair.

Arm Chair

A hall or reception room chair.

A fancy arm chair made out of reed.

Arm Chair

A fancy arm chair made out of reed.

A large arm reed rocker.

Arm Chair

A large arm reed rocker.

A decorative arm chair with a desk.

Arm Chair

A decorative arm chair with a desk.

The Antique Bath chair had openings which served to admit vapor.

Antique Bath Arm-Chair

The Antique Bath chair had openings which served to admit vapor.

The Antique Terracotta arm-chair was in the form of a hollowed-out body of a sphinx.

Antique Terracotta Arm-chair

The Antique Terracotta arm-chair was in the form of a hollowed-out body of a sphinx.

The chair of St. Peter was made out of wood with ivory reliefs illustrating the story of Hercules in Rome.

Chair of St. Peter Arm-Chair

The chair of St. Peter was made out of wood with ivory reliefs illustrating the story of Hercules in…

The English Arm-chair from the 16th century was made out of wood and upholstered.

English Arm-Chair

The English Arm-chair from the 16th century was made out of wood and upholstered.

The Frame of Medieval Arm-chair was made of iron with no drapery included.

Frame of Medieval Arm-Chair

The Frame of Medieval Arm-chair was made of iron with no drapery included.

The Greek judge's chair was made of marble and was found on the site of the Prytaneum, Athens.

Greek Judge's Arm-Chair

The Greek judge's chair was made of marble and was found on the site of the Prytaneum, Athens.

The Greek Priest's chair was made out of marble and was found by the door of the temple of Themis, Athens.

Greek Priest's Arm-Chair

The Greek Priest's chair was made out of marble and was found by the door of the temple of Themis, Athens.

The Louis XVI Arm-chair style had carved wood and was gilded.

Louis XVI Style Arm-Chair

The Louis XVI Arm-chair style had carved wood and was gilded.

The Medieval Arm-chair from the 13th century was made out of metal with no drapery included.

Medieval Arm-Chair

The Medieval Arm-chair from the 13th century was made out of metal with no drapery included.

The Medieval Arm-chair from the 15th century was decorated with fringe and had a bas-relief or low relief.

Medieval Arm-Chair

The Medieval Arm-chair from the 15th century was decorated with fringe and had a bas-relief or low relief.

The Medieval polygonal chair came from Toulouse, France.

Medieval Polygon Arm-Chair

The Medieval polygonal chair came from Toulouse, France.

The Modern Arm-chair.

Modern Arm-chair

The Modern Arm-chair.

The Modern Arm-chair.

Modern Arm-chair

The Modern Arm-chair.

Illustration of the three bears with three chairs that can be used to write mathematics story problems involving comparison, taller, shorter, highest, lowest, etc..

Three Bears and Chairs

Illustration of the three bears with three chairs that can be used to write mathematics story problems…

An illustration of a bench.

Bench

An illustration of a bench.

A baby seat for mounting on the rear of a bicycle. The baby seat includes a horizontally extending lower frame assembly, an upper frame assembly attached to the lower frame assembly and defining an upwardly oriented interior adapted to receive the baby, and support braces for supporting the baby seat from the bicycle.

Baby Seat for Bicycles

A baby seat for mounting on the rear of a bicycle. The baby seat includes a horizontally extending lower…

Boy sitting in a chair.

Boy

Boy sitting in a chair.

Boy reading at table.

Boy reading

Boy reading at table.

An illustration of a young boy sitting in a chair with a book in his hand.

Boy Sitting in Chair with Book

An illustration of a young boy sitting in a chair with a book in his hand.

Elder Brewster's Chair. William Brewster was one a pilgrim who rode the Mayflower in 1620.

Brewster's Chair

Elder Brewster's Chair. William Brewster was one a pilgrim who rode the Mayflower in 1620.

A cartoon of two men at a desk. One man is sitting behind the desk, while the other is standing on the other side with a hat in one hand.

Cartoon of Two Men at a Desk

A cartoon of two men at a desk. One man is sitting behind the desk, while the other is standing on the…

A chair belonging to Governor Carver.

Carver's Chair

A chair belonging to Governor Carver.

"Let any irregularly shpaed body, as a stone or chair, be suspended so as to move freely. Drop a plumb line from the point of the suspendsion, and make it fast or mark its direction. The center of mass will lie in this line. From a second point, not in the line already determined, suspend the body; let it fall a plumb line as before. The center of mass will lie in this line also. But to lie in both lines, it must lie at their intersection." -Avery 1895

Finding the Center of Mass

"Let any irregularly shpaed body, as a stone or chair, be suspended so as to move freely. Drop a plumb…

A chair, one of the Pilgrim relics

Chair

A chair, one of the Pilgrim relics

A dining room chair made out of quartered oak with an antique finish.

Chair

A dining room chair made out of quartered oak with an antique finish.

A dining room chair made out of quartered oak with an antique finish.

Chair

A dining room chair made out of quartered oak with an antique finish.

An illustration of an armed chair.

Chair

An illustration of an armed chair.

An illustration of a large chair.

Chair

An illustration of a large chair.

This chair is carved using locust wood.

Chair

This chair is carved using locust wood.

This chair is carved using locust wood.

Chair

This chair is carved using locust wood.

This chair is upholstered in velvet material.

Chair

This chair is upholstered in velvet material.

The chair is used to sit on.

Chair

The chair is used to sit on.

The chair is used to sit on.

Chair

The chair is used to sit on.

This chair was manufactured in Montreal, Canada as a present to the Queen of England.

Chair

This chair was manufactured in Montreal, Canada as a present to the Queen of England.

This chair has a simple scroll design around the edges. It has animal heads on the front ends of the arm rests and a human head on the top back of the chair.

Chair

This chair has a simple scroll design around the edges. It has animal heads on the front ends of the…

This chair was made in Paris, France in the Elizabethan style. It has a carved wooden back with a cushion on the seat.

Chair

This chair was made in Paris, France in the Elizabethan style. It has a carved wooden back with a cushion…

This chair has a framework carved in wood with female figures on each side of the arms. It has an oversized back and small seat that is cushioned and upholstered.

Chair

This chair has a framework carved in wood with female figures on each side of the arms. It has an oversized…

This chair is carved in mahogany wood. It has a wooden back and a cushioned seat.

Chair

This chair is carved in mahogany wood. It has a wooden back and a cushioned seat.

This is a stationary chair attached to a desk.

Chair and Desk

This is a stationary chair attached to a desk.

A temporary high chair conversion for an adult chair includes a child's eating tray horizontally disposed above an adult chair seat by a pair of U-shaped frame members removably supporting the tray and overlying the chair seat.The rearward end portions of the U-shaped frame members are connected with a pair of opposed chair back supporting standards by a telescoping tube and spring arrangement urging the semicircular chair back standard engaging members into frictional contact with the respective chair back standard.

Chair Attachment Accessory

A temporary high chair conversion for an adult chair includes a child's eating tray horizontally disposed…

An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is generally comfortable and adjustable and can swivel 360 degrees.

Adjustable Office Chair

An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office.…

The Antique chair included a statue of Jupiter on the chair.

Antique Chair

The Antique chair included a statue of Jupiter on the chair.

The Antique Pompeian chair included a cushion and a foot-stool.

Antique Pompeian Chair

The Antique Pompeian chair included a cushion and a foot-stool.

This arm chair has a carved framework made out of Irish bog-yew wood. The arms of the chair are represented by wolf dogs. Its back and seat is upholstered.

Arm Chair

This arm chair has a carved framework made out of Irish bog-yew wood. The arms of the chair are represented…

This arm chair is carved in wood. The top of the chair has a leaf scroll design and an angel on each side. On each arm of the chair is a design of a bird.

Arm Chair

This arm chair is carved in wood. The top of the chair has a leaf scroll design and an angel on each…

In the Roman Republic, and later the Empire, the curule seat was the chair upon which senior magistrates were entitled to sit, including dictators, masters of the horse, consuls, praetors, censors, and the curule aediles. he curule chair was traditionally made of or veneered with ivory, with curved legs forming a wide X; it had no back, and low arms. The chair could be folded, and thus an easily transportable seat, originally for magisterial and promagisterial commanders in the field, developed a hieratic significance, expressed in fictive curule seats on funerary monuments, a symbol of power which was never entirely lost in post-Roman European tradition. Sixth-century consular ivory diptychs of Orestes and of Constantinus each depict the consul seated on an elaborate curule seat with crossed animal legs.

Curule Chair

In the Roman Republic, and later the Empire, the curule seat was the chair upon which senior magistrates…

This curule chair is ornamented in a Grecian style with hoof legs, and animal heads on each top end of its back. It is a stool with a curved back.

Curule Chair

This curule chair is ornamented in a Grecian style with hoof legs, and animal heads on each top end…

A piece of furniture consisting of a seat, legs, back, and often arms, designed to accommodate one person.

Dining Chair

A piece of furniture consisting of a seat, legs, back, and often arms, designed to accommodate one person.

This Dutch chair was upholstered in leather.

Dutch Leather Chair

This Dutch chair was upholstered in leather.

The Egyptian chair has legs that are prismatic or often turned, frequently with claw feet.

Egyptian Chair

The Egyptian chair has legs that are prismatic or often turned, frequently with claw feet.

"The Egyptian chairs of which we have a great variety of representations, were not inferior in elegance to any thing of the kind at the present day." — Goodrich, 1844

Egyptian chair

"The Egyptian chairs of which we have a great variety of representations, were not inferior in elegance…

The back of the Egyptian chair is treated as a frame.

Egyptian Chair

The back of the Egyptian chair is treated as a frame.

Upholstered Egyptian chair with patterned material.

Egyptian Chair with Patterned Material

Upholstered Egyptian chair with patterned material.

The Egyptian tomb of Ramses III Includes a mural painting of the tomb, Thebes.

Egyptian Tomb of Ramses III chair

The Egyptian tomb of Ramses III Includes a mural painting of the tomb, Thebes.