ClipArt ETC
This chalk board also offers abacus-like beads at the top for keeping track of tallies.

Chalk Board

This chalk board also offers abacus-like beads at the top for keeping track of tallies.

Frame used to frame tables, this is a small type design featuring shape.

Small Frame for Table Top

Frame used to frame tables, this is a small type design featuring shape.

An airplane wing free body diagram illustrating forces acting on the wing.

Airplane Wing Free Body Diagram

An airplane wing free body diagram illustrating forces acting on the wing.

An illustration of stabilizing the plane by setting the back wing at less angle of incidence than the front main wings creating a dihedral angle.

Stabilizing Aeroplane using Dihedral Angle

An illustration of stabilizing the plane by setting the back wing at less angle of incidence than the…

A top view plan of a propeller aeroplane, or airplane. The plan shows the proper ribs and skeleton for the wings and back side of the plane.

Propeller Aeroplane Top Plan

A top view plan of a propeller aeroplane, or airplane. The plan shows the proper ribs and skeleton for…

A pusher aeroplane plan illustrating the proper ribbing and wiring for the plane. The wires are used to adjust the wings during flight. Pusher aeroplane propeller is located behind the cockpit.

Front View Pusher Aeroplane Plan

A pusher aeroplane plan illustrating the proper ribbing and wiring for the plane. The wires are used…

A side view plan of a propeller aeroplane for two people. The plan illustrates the the proper location of the wires to support the the wings on the plane.

Propeller Aeroplane Top Plan

A side view plan of a propeller aeroplane for two people. The plan illustrates the the proper location…

An illumination from the coronation of a king with his nobles and bishop wearing embellished clothing typical during the Medieval Ages.

England Nobles Fourteenth Century Fashion

An illumination from the coronation of a king with his nobles and bishop wearing embellished clothing…

Lady Eleanor's, sister of King Edward II, elaborately decorated and upholstered carriage drawn by six horses. The carriage was built to without springs, making an uncomfortable trip.

Fourteenth Century State Carriage

Lady Eleanor's, sister of King Edward II, elaborately decorated and upholstered carriage drawn by six…

The interior view of the rectory in Market Deeping during the fourteenth century. The empty room contains a window with a curved tracery. A rectory is a house where a rector, a religious administrator, took residence.

Gothic Rectory in Market Deeping House

The interior view of the rectory in Market Deeping during the fourteenth century. The empty room contains…

An outside view of a fisherman's cottage in Somersetshire illustrating common architectural features during the fourteenth century. The two story cottage is about 32 feet long by 16 feet wide, where the ground floor is divided into three rooms.

Somersetshire Fisherman's Cottage

An outside view of a fisherman's cottage in Somersetshire illustrating common architectural features…

The middle window is the tracery found on the St. John's Hospital, Northampton. The two faces on the side is a larger view of the window from the Newarke Gateway at Leicester. These features were commonly found in Gothic architecture to decorate windows.

Northampton St. John's Hospital

The middle window is the tracery found on the St. John's Hospital, Northampton. The two faces on the…

An interior view of a merchant's parlour in Salisbury during the fourteenth century. The interior have a fireplace and a painting on top of the window.

Merchant's Parlour Salisbury House

An interior view of a merchant's parlour in Salisbury during the fourteenth century. The interior have…

The interior view of the Fisherman's Cottage in Somersetshire. The interior of the cottage have a window with traceries and a fireplace. The Roof is supported by a series of wooden arches attached to both sides of the wall.

Interior Somersetshire Fisherman's Cottage

The interior view of the Fisherman's Cottage in Somersetshire. The interior of the cottage have a window…

Edward the Black Prince wearing full armor during the fourteenth century. He was the eldest son of King Edward III, and campaigned in Norway and Spain.

Edward the Black Prince

Edward the Black Prince wearing full armor during the fourteenth century. He was the eldest son of King…

"The figure on the left is from a French manuscript picture, representing Merlin. The lady on the window—seat is from the Loutrell Psalter. The other lady is from one of the bronze statues on the Tomb of King Edward III, and the figure between them is given authority of Fairholt." —Barfield, 1914

Nobles Talking Nursted Court

"The figure on the left is from a French manuscript picture, representing Merlin. The lady on the window—seat…

An illustration a typical street during the fourteenth century. The house in the back have Gothic tracery in the windows and arched doors common during the period. On the left side, the horses are carrying a horse litter for transporting goods.

Fourteenth Century City Street

An illustration a typical street during the fourteenth century. The house in the back have Gothic tracery…

A close up view of a fourteenth century gabled house in Weobly, Herefordshire. The gabled house illustrates Gothic traceries in the windows and ornamentation moulds along the roof.

Fourteenth Century Gabled House

A close up view of a fourteenth century gabled house in Weobly, Herefordshire. The gabled house illustrates…

An outside view of the spherical triangle from a church. The window has three rounded parts in a shape of a triangle.

Gothic Architecture Spherical Triangle Outside Window

An outside view of the spherical triangle from a church. The window has three rounded parts in a shape…

An illustration of fourteenth century tournament of knights wearing armor from Romance of King Maliadus manuscript. A tournament is when there are three or more knights fighting on the course, whereas a joust is only two are fighting.

Knight Tournament from Romance of King Meliadus

An illustration of fourteenth century tournament of knights wearing armor from Romance of King Maliadus…

"This attachment, which may be readily affixed to any lathe, consists of a lever that is attached to a crank shaft, which latter has its bearings on the slide rest. From the crank there is a connecting rod which goes to the slide rest. By means of the lever the rest can be moved to and fro on condition that it is free from the cross feed." —Grimshaw

Cam Turning Attachment for Lathe

"This attachment, which may be readily affixed to any lathe, consists of a lever that is attached to…

A method to cool a large number of steel during the hardening process. The top barrel A drains the water into barrel B, then the overflow from barrel B goes is directed into barrel C. The pump transfers back the overflow back into barrel A using a pipe.

Cooling Water for Hardening Steel

A method to cool a large number of steel during the hardening process. The top barrel A drains the water…

"Where the head is movable, the pivot should be quit large, and the hole in which it plays be bushed with metal; the washers must be large, and the clamp screws of hard metal, with deep threads and unreliable." —Grimshaw, 1902

Taper Head Adjustable T Square Side and Front View

"Where the head is movable, the pivot should be quit large, and the hole in which it plays be bushed…

A front and side view of a t square with rectangular head. The t square is used draw straight lines using the blade in mechanical drawing.

Fixed Rectangular Head T Square

A front and side view of a t square with rectangular head. The t square is used draw straight lines…

An illustration showing USS Arizona. USS Arizona was a Pennsylvania class battleship, built by U.S. Navy. It was launched in 1915, and served stateside during World War I. The ship sank in Pearl Harbor during World War II.

United States Navy Arizona Battleship

An illustration showing USS Arizona. USS Arizona was a Pennsylvania class battleship, built by U.S.…

USS Massachusetts commissioned by United States Navy in 1942. The ship was used during the World War II in the Pacific Ocean. The ship has a top speed of 27 knots (31 mph) and 35000 tons.

Massachusetts Battleship United States Navy

USS Massachusetts commissioned by United States Navy in 1942. The ship was used during the World War…

Italian navy's Caio Duilio battleship launched in 1913. The ship was used during World War I and II.

Caio Duilio Battleship Italian Navy

Italian navy's Caio Duilio battleship launched in 1913. The ship was used during World War I and II.

German Navy Battlecruiser, SMS Hindenburg. The ship was launched in 1915, and used during World War I.

Hindenburg German Navy Battleship

German Navy Battlecruiser, SMS Hindenburg. The ship was launched in 1915, and used during World War…

A feeding machine which has been adapted to feed and push a material with a high consistency by means of subjecting the material to a large stretching and contracting force, namely the combined actions of folding back, pulling and shearing being applied simultaneously.

Feeding Machine

A feeding machine which has been adapted to feed and push a material with a high consistency by means…

A plan of the Mark I Tank with the interior moving mechanical parts labeled. The tank was used during World War I by the British Army.

Mark I Tank Plan

A plan of the Mark I Tank with the interior moving mechanical parts labeled. The tank was used during…

A side view of the Mark IV Tank showing the interior mechanical components. The tank went into production in May 1917.

Mark IV Tank Plan

A side view of the Mark IV Tank showing the interior mechanical components. The tank went into production…

The top interior view of the Mark IV Tank showing the belt drive and other mechanical parts to move the tank.

Mark IV Tank Top View Plan

The top interior view of the Mark IV Tank showing the belt drive and other mechanical parts to move…

A plan illustrating the interior side view of Medium Mark A tank. The plan shows a detailed schematic to operate the tank.

Medium Mark A Tank Plan

A plan illustrating the interior side view of Medium Mark A tank. The plan shows a detailed schematic…

A plan illustrating the interior mechanical view of Mark V Tank.

Medium Mark V Tank Plan

A plan illustrating the interior mechanical view of Mark V Tank.

A cross sectional view of tapping a crucible in thermit welding. The crucible is placed over a mold to fasten two metals together. This method is commonly used to combine two railroad tracks.

Sectional View of Tapping Crucible Thermit Welding

A cross sectional view of tapping a crucible in thermit welding. The crucible is placed over a mold…

The illustration shows a cross sectional close up view of a straight side rim and tire. The metal piece clinches the rubber part of the tire with the liner inside to keep air in.

Cross Sectional View of Straight Side Rim Tire

The illustration shows a cross sectional close up view of a straight side rim and tire. The metal piece…

An schematic illustration of the 3 inch Stokes mortar. The mortar is made out of steel and screwed onto the ground for support by a cap. The mortar was used by the British in the trench during World War I.

Barrel View of Stokes Mortar

An schematic illustration of the 3 inch Stokes mortar. The mortar is made out of steel and screwed onto…

The illustration shows a schematic view of the Stokes Mortar being mounted onto the bipod. The mortar is mounted on to the bipod. The bipod adjusts the mortar's angle by adjusting the the elevating handle moving the gears.

Front View of Stokes Mortar with Bipod

The illustration shows a schematic view of the Stokes Mortar being mounted onto the bipod. The mortar…

An illustration of a 240 mm Trench Mortar used by the French during World War I, and designed by Dumezil—Batignolles. The mortar had a short barrel firing 192 lb. bombs.

240 mm Trench Mortar

An illustration of a 240 mm Trench Mortar used by the French during World War I, and designed by Dumezil—Batignolles.…

The illustration of a medium trench mortar used during World War I. The mortar was designed with a rifled barrel to spin stabilize the shell.

Rifled Medium Trench Mortar

The illustration of a medium trench mortar used during World War I. The mortar was designed with a rifled…

A 192 pound bomb shell for the 240 mm trench mortar used during World War I. The vanes, or wings, are at the end of the case perpendicular to each other.

192 Pound Trench Mortar Bomb Shell

A 192 pound bomb shell for the 240 mm trench mortar used during World War I. The vanes, or wings, are…

A light minenwerfer with 7.6 cm caliber designed by German during World War I. The series of gears adjusts the angle of the barrel by turning the hand crank.

Rifled Light Minenwerfer Mortar

A light minenwerfer with 7.6 cm caliber designed by German during World War I. The series of gears adjusts…

A World War I radio communication at Bordeaux. The United States Army built the radio station for a direct communication line.

French Radio Station at Bordeaux Built by American Army

A World War I radio communication at Bordeaux. The United States Army built the radio station for a…

The illustration of the side view of the oblique timber inserted into the horizontal timber. The drawing is done by drawing the square base, then draw an angled parallel line from the base.

Side View of Oblique Timber Framed in to Horizontal Timber

The illustration of the side view of the oblique timber inserted into the horizontal timber. The drawing…

A isometric drawing of the oblique and horizontal wood combined together. The image is drawn by creating the squared cube base, then, at the desired angle, draw the 3D view of the wood sticking up.

Isometric View of Oblique Timber Framed in to Horizontal Timber

A isometric drawing of the oblique and horizontal wood combined together. The image is drawn by creating…

A sliced view at point VW, shown in the top figure. The inside view of the cylinders shows the points where the cylinders are connected.

Sliced View of Auxiliary Planes of Two Intersecting Cylinder

A sliced view at point VW, shown in the top figure. The inside view of the cylinders shows the points…

An outside view of two cylinders intersecting in an auxiliary plane. The dotted lines is the center of each cylinders.

Outside View of Auxiliary Planes of Two Intersecting Cylinder

An outside view of two cylinders intersecting in an auxiliary plane. The dotted lines is the center…

A sled is a sliding vehicle designed to transport passengers and/or cargo by using a running mechanism and smooth undersides instead of wheels.

Sied View of a Sled

A sled is a sliding vehicle designed to transport passengers and/or cargo by using a running mechanism…

A close up of a square thread on a screw. This representation shows the correct an accurate three dimensional view of the screw.

Square Thread Screw

A close up of a square thread on a screw. This representation shows the correct an accurate three dimensional…

A match is a consumable tool for lighting a fire in controlled circumstances. They are commonly sold by tobacconists and many other kinds of shops.

Match Stick

A match is a consumable tool for lighting a fire in controlled circumstances. They are commonly sold…

This is a tool used to chute, or jump from an airplane and descent with.

Elongated Parachute

This is a tool used to chute, or jump from an airplane and descent with.

A cross sectional view of the melon fruit. The center of the melon have seeds connected to the placentas and separated by particions.

Cross Sectional View of Melon

A cross sectional view of the melon fruit. The center of the melon have seeds connected to the placentas…

A cross sectional view of the Dicyemennea Eledones, a parasite, found in Eledone Moschata, or musky octopus.

Dicyemennea Eledones Worm Found in Kidney of Octopus

A cross sectional view of the Dicyemennea Eledones, a parasite, found in Eledone Moschata, or musky…

The illustration is showing both inside and outside view of the tadpole. The left inside view shows the tadpole with two front legs, heart, intestines, and gills. The right image shows the tadpole with frog like features with forelegs, back legs, and a tail.

Inside and Outside View of Tadpole During Metamorphosis

The illustration is showing both inside and outside view of the tadpole. The left inside view shows…

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…

A micrometer with the box removed from Cape Observatory. The device rotates the telescope accurately by turning the wheels. This view of the micrometer is attached to the base.

Repsolds Micrometer with Removed Box Cape Observatory

A micrometer with the box removed from Cape Observatory. The device rotates the telescope accurately…

This is a small paperboard enclosing a quantity of matches featuring a coarse striking surface on the exterior.

Match Box and Igniter

This is a small paperboard enclosing a quantity of matches featuring a coarse striking surface on the…

This fly trap was intended to prevent pest intrusion from household windows. This trap features a fold down screen which allows a view of the immediate outside area, while restricting entrance to flies and other pests through a see-through screen.

Window Purpose Fly Trap

This fly trap was intended to prevent pest intrusion from household windows. This trap features a fold…

This medicinal needle is an enlarged view of early type acupuncture; the procedure in which an insertion of needles into various points on the body to relieve pain.

Medicinal Needle

This medicinal needle is an enlarged view of early type acupuncture; the procedure in which an insertion…

A Greenough's binocular light microscope. The microscope has two eyepieces to view the sample with both eyes. The mirror is used to provide a light source for the microscope by reflecting light.

Greenough's Binocular Light Compound Microscope with Mirror Reflecting Light Source

A Greenough's binocular light microscope. The microscope has two eyepieces to view the sample with both…