Ceramic Dictionary

JAR MILLS

ca: MOLINS

es: MOLINOS

Jar mills are for grinding minerals, oxides, glazes, colors etc. It is a round, porcelain tub, which can have a door or lid that must be watertight when closed. The jar holds pebbles or prepared ceramic balls, the materials to be ground and water, leaving enough space for the pebbles to fall continuously on to the products being ground when the jar rotates. There are many types and makes and at one time, when a potter had to prepare everything himself, they were a must, but now they are mainly used industrially.

JARS

ca: POTS

es: TARROS

Jars can be made of glass, earthenware and plastic, are usually cylindrical with a broad mouth, can be with or without a lid and are used to hold everything, brushes, colors, water and powders, flowers, etc. A jar and a vase are the same except a jar can have a lid and is used for packable purposes and a vase is more elegant and decorative.

JARS – To use colors, water, flowers,etc.

ca: POTS - Per a colors

es: TARROS - Para colores

Jars and pots are basically the same, can be with or without lids, of any material, glass, clay, plastic, metal, and wood and in different sizes. Glass or clear plastic are the most practable as you can see what is in them. Keep the different stages of preparation of colors in different types of jars so that they can be easily recognized, they should have lids that close tightly as dust and dirt can affect and spoil them. Lable them with the color, make and code number. The best way to this is to write out the information on a label, stick it onto the jar and then cover it with adhesive tape or use pen with permanent ink straight onto the glass. Each person working in a studio should be able to distinguish their prepared colors and paintbrushes. One way it to tape them with a different colored insulating tape for each person.
The following sections are connected with jars and pots. See: Brushes cleaning, / Jars for storing colors as powder, liquid and to use. / Jars with water for cleaning brushes, / Pots with colors to use, / Flowerpot

JIGGERING AND JOLLYING

ca: TORNEJAR AMB PLANTILLA- INTERIOR I EXTERIOR

es: TORNEAR A TERRAJA- INTERIOR E EXTERIOR

a) Template. b) Clay. c) Mold. d) Wheel

Jiggering is a method to form the outside of a plate and jollying the inside. There is a fixed, unmovable arm that holds a template. A template is half the profile of the piece being made and is cut out in a strong, thin material like plastic, wood or metal. The mold shaping the inside or outside is on a wheel and covered by a flat piece of clay. The wheel is rotated and the template held by the jolly against the clay, shapes it by scraping off the unnecessary clay as it turns
Link to Jiggering

JUG

ca: GERRA

es: JARRA

Jugs are utensils to hold, carry and pour liquid and can be made of different materials. They always have a lip to direct the liquid while pouring it out. Usually the lip and the handle are in line and on opposite sides, but they can be at 90º to each other. A jug can also be without a handle and is then held by the neck or the main body. To make a jug by turning is basically the same as a vase but it has a lip and can be with or without a handle. See: Handles / Lip / Vase – Turning

JUG - FOR MEASURING

ca: GERRA MESURADORA

es: JARRA MEDIDORA

Jugs for meawuring are industrially made in plastic or glass for measuring different substances, liquids, sugar etc. The height of the weight or the quantity of liquid that a product takes is marked on to the outside of it. In other words if ½ a kilo of sugar fills up 8 cm in the jug, this height is marked onto the jug. It can then be used for measuring quickly and roughly