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Solutions for silhouette outlines of boats (sailboat, ship, yacht) made from tangram pieces. Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. 7 figures consisting of triangles, squares, and parallelograms are used to construct the given shapes.

Boats Silhouette Solution Tangram Card

Solutions for silhouette outlines of boats (sailboat, ship, yacht) made from tangram pieces. Tangrams,…

This hand truck was designed around a round garbage can. The main purpose for the wheeled garbage truck was to be moved around by a person who collected garbage. The can features a small swivel wheel behind the larger stationary ones.

Two Wheeled Garbage Hand Truck

This hand truck was designed around a round garbage can. The main purpose for the wheeled garbage truck…

This is a framework consisting of two wheels, and a chain driven crank shaft. One of wheels is used for conducting the rest of the frame depending on the operators point of direction. Foot pedals are used to drive the chain that spins the rear wheel providing the frame to move forward.

Combination Chain Driven Bicycle

This is a framework consisting of two wheels, and a chain driven crank shaft. One of wheels is used…

This vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. This basic system, used a brake lever, and road wheel brakes. The heat energy is then dissipated into the atmosphere.

Running Gear Vehicular Brake

This vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. This basic…

This supporting brace for bicycles is also known as training wheels, which are mounted parallel to the rear wheel of a bike. The support brace assists learners until they have developed a usable sense of balance. Typically they are used in teaching very young children

Supporting Brace for Bicycles

This supporting brace for bicycles is also known as training wheels, which are mounted parallel to the…

This cart fender is the part of an automobile that frames the wheel. The primary purpose of the fender is to prevent sand, mud, rocks, and other forms of debris from being thrown into the air by the rotating tire.

Cart use Fender

This cart fender is the part of an automobile that frames the wheel. The primary purpose of the fender…

This bicycle features a lock formed out of an engaging part that is also used as its stand, similar to how a car club is shaped. The locking mechanism is used to prevent theft.

Combination Bicycle Lock and Stand

This bicycle features a lock formed out of an engaging part that is also used as its stand, similar…

A tire is ring shaped, the earliest tires were bands of iron placed on wooden wheels which were used on carts and wagons. The tire would be heated in a forge fire, placed over the wheel and quenched.

Adjustable Tire

A tire is ring shaped, the earliest tires were bands of iron placed on wooden wheels which were used…

A marine velocipede is a form of waterborne transport, primarily for recreational use, powered through the use of pedals. This transport works by utilizing the pedaling motion to rotate a paddle wheel similar to the form of marine propulsion used in the earlier paddle steamers.

Marine Velocipede

A marine velocipede is a form of waterborne transport, primarily for recreational use, powered through…

The American ice velocipede is a sensible contrivance, literally skating by means of machinery. The machine is intended to be used on ice. The driving wheel is armed with sharp points to prevent the possibility of slipping

Ice Velocipede

The American ice velocipede is a sensible contrivance, literally skating by means of machinery. The…

A tire is a ring shaped covering that fits around a wheel to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground. The fundamental materials of modern tires are rubber and fabric along with other compound chemicals. The tread provides traction while the body ensures support.

Elastic Tire

A tire is a ring shaped covering that fits around a wheel to protect it and enable better vehicle performance…

A collapsible boat includes a skeleton and an impervious skin tensioned about the skeleton. The skeleton includes a plurality of longitudinal and transverse frame members forming stringers and former, the frame members being attached to the gunwale frame of the boat and the transverse members being turn able relative to the gunwale frame. The flexible skin is permanently attached to the gunwale frame and the longitudinal frame members are hinge connected to the gunwale frame at front and rear portions thereof. The longitudinal members are turn able relative to the gunwale frame in a direction transversely of the boat, and the longitudinal frame members along their horizontal portion each being provided with one or more hinge members turn able through an angle of 180°.

Collapsible Boat

A collapsible boat includes a skeleton and an impervious skin tensioned about the skeleton. The skeleton…

The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is usually near the operator of the vehicle, to the actual brake mechanism, which is usually at or near the wheel of the vehicle. Within a hydraulic brake system, as the brake pedal is pressed/ brake lever is squeezed, a push rod exerts force on the piston(s) in the master cylinder causing fluid from the brake fluid reservoir to flow into a pressure chamber through a compensating port which results in an increase in the pressure of the entire hydraulic system. This forces fluid through the hydraulic lines toward one or more calipers where it acts upon one or two additional caliper pistons secured by one or more seated O-rings which prevent the escape of any fluid from around the piston.

Fluid Pressure Brake Apparatus

The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing…

A can opener is a device used to open metal cans. Although preservation of food using tin cans had been practiced since at least 1772 in the Netherlands, the first can openers were patented only in 1855 in England and in 1858 in the United States. Those openers were basically variations of a knife, and the 1855 design continues to be produced. The first opener employing the now familiar sharp rotating wheel, which runs around the can's rim cutting the lid, was invented in 1870 but was difficult to operate. A breakthrough came in 1925 when a second, serrated wheel was added to hold the cutting wheel on the rim of the can. This easy to use design has become one of the most popular can opener models.

Rotating Wheel Can Opening Tool

A can opener is a device used to open metal cans. Although preservation of food using tin cans had been…

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary purpose is to prevent sand, mud, rocks, and liquids from being thrown into the air by the rotating tire. Fenders are typically rigid and can be damaged by contact with the road surface. Instead flexible mud flaps are used close to the ground where contact may be possible.

Car Fender

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames…

A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion. Two or more pulleys together are called a block and tackle.

Pulley

A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that…

A wheel is a circular device that is capable of rotating on its axis, facilitating movement and transportation.

Side View of a Vehicle Wheel

A wheel is a circular device that is capable of rotating on its axis, facilitating movement and transportation.

Pitters and seeders were an inventor's dream. This ingenious little machine was used to take seeds out of raisins. Today most of the grapes and raisins variants are grown seedless, but only a few decades ago this was not the case. In the 19th and very early 20th century, raisins came with seeds. To extract them you needed a seeder, which was used in the home. The instructions embossed on metal frame of this seeder are "wet the raisins." The seeder is meant to clamp onto the edge of a table. Then the raisin was placed in the "cup" on top, the handle was turned to move two wheels that moved in opposite directions. One wheel has small spike-like extrusions and is of metal, the other is made of what looks like a hard rubber.

Agricultural Raisin Seeder

Pitters and seeders were an inventor's dream. This ingenious little machine was used to take seeds out…

A tire is a ring shaped covering that fits around a wheel to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground.

Rubber Made Wheel Tire

A tire is a ring shaped covering that fits around a wheel to protect it and enable better vehicle performance…

A swing, or observation wheel, is a structure, consisting of a rotating upright wheel with passenger gondolas attached to the rim.

Wheel Like Swinging Set

A swing, or observation wheel, is a structure, consisting of a rotating upright wheel with passenger…

A circular frame of hard material that may be solid, partly solid, or spoked and that is capable of turning on an axle.

Sheet Metal Web Wheel

A circular frame of hard material that may be solid, partly solid, or spoked and that is capable of…

Although preservation of food using tin cans had been practiced since at least 1772 in the Netherlands, the first can openers were patented only in 1855 in England and in 1858 in the United States. Those openers were basically variations of a knife, and the 1855 design continues to be produced.

Rotating Cutting Wheel Tin Can Opener

Although preservation of food using tin cans had been practiced since at least 1772 in the Netherlands,…

A hoist is a device used for lifting or lowering a load by mans of a drum or lift wheel around which rope or chain wraps. In this case manually operated, with a wire rope as a its lifting medium. The load is attached to the hoist by means of a lifting hook.

Hoisting and Conveying Apparatus

A hoist is a device used for lifting or lowering a load by mans of a drum or lift wheel around which…

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation whilst supporting a load or performing labor in machines.

Antique Vehicle Wheel

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation…

A fender louver on the rear wheel fender of a tractor to provide visual means of determining the condition of wheel rotation.

Automobile Fender

A fender louver on the rear wheel fender of a tractor to provide visual means of determining the condition…

The driving gear is a machine component consisting of a toothed wheel attached to a rotating shaft. Gears operate in pairs to transmit and modify rotary motion and torque (turning force) without slip, the teeth of one gear engaging the teeth on a mating gear. If the teeth on a pair of mating gears are arranged on circles, i.e., if the gears are toothed wheels, the ratios of the rotary speeds and torques of the shafts are constant.

Driving Gear

The driving gear is a machine component consisting of a toothed wheel attached to a rotating shaft.…

This device is similar to a water mill. A water mill is a structure that uses a water wheel or turbine to drive a mechanical process such as flour, lumber or textile production, or metal shaping. A water mill that generates electricity is usually called a hydroelectric plant.

Device for Lifting Water

This device is similar to a water mill. A water mill is a structure that uses a water wheel or turbine…

A pulley is a mechanism of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope usually runs over the wheel and inside the groove, if present.

Sash Pulley

A pulley is a mechanism of a wheel on an axle or shaft that may have a groove between two flanges around…

Among the early velocipedes there were designs with one, two, three and four wheels. Some two-wheeled designs had pedals mounted on the front wheel, while three- and four-wheeled designs sometimes used treadles and levers to drive the rear wheels.

Marine Velocipede

Among the early velocipedes there were designs with one, two, three and four wheels. Some two-wheeled…

A horse harness is a type of horse tack that allows a horse or other equine to pull various horse-drawn vehicles such as a carriage, wagon or sleigh. Harnesses may also be used to hitch animals to other loads such as a plow or canal boat.

Original Use Horse Harness

A horse harness is a type of horse tack that allows a horse or other equine to pull various horse-drawn…

This is a detachable harness type of horse tack that allows a horse or other equine to pull various horse-drawn vehicles such as a carriage, wagon or sleigh. Harnesses may also be used to hitch animals to other loads such as a plow or canal boat.

Horse Detaching Harness

This is a detachable harness type of horse tack that allows a horse or other equine to pull various…

Fertilizers are roughly broken up between organic and inorganic fertilizer, with the main difference between the two being sourcing, and not necessarily differences in nutrient content. Broadcast seeders/spreaders can be roughly divided into three groups. The smallest of the broadcast seeders/spreaders can be carried or pushed while spreading seed or fertilizer.

One Wheel Fertilizer Distributor

Fertilizers are roughly broken up between organic and inorganic fertilizer, with the main difference…

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel of a motor vehicle, a pipe connecting the interior of the hopper to the storage chamber, an auger disposed within the pipe for transferring the sand from the storage tank to the hopper, and a motor for rotating auger.

Track Sanding Apparatus

A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel…

A,trolley is a rail borne vehicle, of lighter weight and construction than a conventional train, designed for the transport of passengers within, close to, or between villages, towns and/or cities, on tracks running primarily on streets. Certain types of cable car are also known as trams.

Trolley Wheel

A,trolley is a rail borne vehicle, of lighter weight and construction than a conventional train, designed…

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.…

Shading wheel using lines by estimating how the light hit the surface.

Wheel Shading

Shading wheel using lines by estimating how the light hit the surface.

A tracked vehicle is a vehicle that runs on continuous tracks instead of wheels. The principal design advantages of tracked over wheeled vehicles are that they are in contact with a larger surface area than would generally be the case with a wheeled vehicle, and as a result exert a much lower force per unit area on the ground being traversed than a conventional wheeled vehicle of the same weight.

Traction Vehicle

A tracked vehicle is a vehicle that runs on continuous tracks instead of wheels. The principal design…

A skirt guard or coat guard is a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage catching in the wheel, or in the gap between the rim and the brakes.

Bicycle Riding Skirt

A skirt guard or coat guard is a device fitted over the rear wheel of a bicycle to prevent a long skirt,…

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation whilst supporting a load or performing labor in machines. Common examples are found in transport applications.

12 Spoke Vehicle Wheel

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation…

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire.

Car Fender

Fender is the US English term for the part of an automobile, motorcycle or other vehicle body that frames…

A fourteenth century war vessel with two masts and barge used to transport soldiers. Most fourteenth century ships were made with one masts with the rudder no longer than the side of the ship.

Fourteenth Century War Vessel and Barge

A fourteenth century war vessel with two masts and barge used to transport soldiers. Most fourteenth…

An illustration of creating a hand wheel by spinning while moving threaded tool to the desired radius.

Turning Hand Wheels

An illustration of creating a hand wheel by spinning while moving threaded tool to the desired radius.

"The pulley is first put in a revolver lathe and there bored and reamed, while on edge of the rim is turned at right angles to the hub bore. Then the pulley is unchecked, and put on a mandrel." —Grimshaw, 1902

Turning Belt Pulleys

"The pulley is first put in a revolver lathe and there bored and reamed, while on edge of the rim is…

"On the two vertical sides of the block there are screwed on two flat pieces of steel, that have holes near their lower ends, in which the worm journals run. The worm and the worm—wheel gear with each other. The worm is turned by a small hand wheel." —Grimshaw, 1902

Lathe Turning Astragals

"On the two vertical sides of the block there are screwed on two flat pieces of steel, that have holes…

The device used to create spheres by rotating the ball and mandrel to create an equal diameter. The wire is connected to the top and the wheel while spinning.

Device for Turning Sphere

The device used to create spheres by rotating the ball and mandrel to create an equal diameter. The…

"Where the lathe has no special taper turning attachment, the rig here described can readily be made and applied. The hand wheel of the cross feed is removed, and replaced by a hard—wood disk S that has a rim groove for a stout cord A. One end of this cord is attached to the tail stock at B, by means of a bent metal strip D. The conicity or degree of taper will be determined by the diameter of the disk S." —Grimshaw, 1902

Taper Turning and Boring Lathe Rig

"Where the lathe has no special taper turning attachment, the rig here described can readily be made…

A lathe tool attachment for cutting a pulley in two or create grooves. The arm with the spinning tool extends to the wheel while it is spinning.

Pulley Cutting Tool

A lathe tool attachment for cutting a pulley in two or create grooves. The arm with the spinning tool…

"In some of the cheap American alarm clocks there is used a simple ratchet—wheel which has the double advantage that it is noiseless, and is operative in every position." —Grimshaw, 1902

Noiseless Clock Ratchet

"In some of the cheap American alarm clocks there is used a simple ratchet—wheel which has the…

British Royal Navy's D class Torpedo Boat Destroyers (TBDs) launched in 1918. The ship had 12 guns, two funnels, and the top speed of 30 knots (34.52 mph). The D class was powered by a triple expansion steam engine.

British Royal Navy D Class Torpedo Boat Destroyer

British Royal Navy's D class Torpedo Boat Destroyers (TBDs) launched in 1918. The ship had 12 guns,…

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation while supporting a load, or performing labor in machines. Common examples are found in transport applications.

Eight Spoke Wheel

A wheel is a circular device that is capable of rotating on its axis, facilitating movement or transportation…

This coal wagon is composed of two varying wheel size sets, for easier access to the loading and dumping of coal.

Coal Wagon

This coal wagon is composed of two varying wheel size sets, for easier access to the loading and dumping…

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a boat. The rounded middle part of the nephoscope is the mirror with the compass is along the circumfrance.

Abbe's Marine Nephoscope Inside View

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a…

This illustration depicts the use of a steering column, a device which is intended primarily for connecting the steering wheel to the steering mechanism by transferring the drivers input torque from the steering wheel.

Auxiliary Steering Device

This illustration depicts the use of a steering column, a device which is intended primarily for connecting…

This trolley wheel is often refereed to as a bogie, or the framework for a carrying case in this scenario a trolley.

Trolley Wheel

This trolley wheel is often refereed to as a bogie, or the framework for a carrying case in this scenario…

This trolley wheel is used to hold heavy loading objects like furniture onto trolleys or hand trucks.

Furniture Caster

This trolley wheel is used to hold heavy loading objects like furniture onto trolleys or hand trucks.

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower or less. The steam from the system escapes the from the piston, moving the wheel.

Low Power Simple Steam Engine Diagram

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower…

A low power simple expansion steam engine. The steam engine can run at 100 horsepower, and not run continuously. The as the piston in the cylinder expands, part of steam is exhausted into the surrounding. The piston then moves the wheel to generate power.

Low Power Simple Expansion Steam Engine

A low power simple expansion steam engine. The steam engine can run at 100 horsepower, and not run continuously.…

A power pump steam engine without shaft. The engine turns the wheel with the reciprocal motion of the piston.

Power Pump Steam Engine

A power pump steam engine without shaft. The engine turns the wheel with the reciprocal motion of the…

This fan features a hamster type wheel in the middle for moving air or gases. It has a fan wheel with several blades which are mounted on a hub.

Centrifugal Fan

This fan features a hamster type wheel in the middle for moving air or gases. It has a fan wheel with…

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot controlled lever to lower or raising the rear driving wheel. The vehicle was not fitted with a braking system, and operated at 3 to 10 mph.

Butler's Gas Operated Motor Tricycle

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot…