A handle is a part of, or attachment to, an object that can be moved or used by hand. The design of each type of handle involves substantial ergonomic issues, even where these are dealt with intuitively or by following tradition.
A hasp, latch or catch is a type of mechanical fastener that joins two (or more) objects or surfaces while allowing for their regular separation. A latch typically engages another piece of hardware on the other mounting surface. Depending upon the type and design of the latch, this engaged bit of hardware may be known as a keeper or strike.
A heat exchanger (condenser coil) is a system used to transfer heat between two or more fluids. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in heating and refrigeration. An example is the heat sink, which is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant.
Heat shields are common in restaurant equipment. A heat shield is designed to protect an object from overheating by dissipating, reflecting or simply absorbing heat. Heat shields also serve a personnel safety function. Heat plates are similar in that they are designed to dissipate heat in a controlled pattern such as with gas ranges.
A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device'stemperature at optimal levels. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.
Heat lamps are similar to regular incandescent lamps (see below) but produce higher levels of infrared radiation. This creates more radiant heat, proving to be more useful as a source of warmth than a regular lamp. There are two kinds of heat lamps, red lamps and frosted/clear lamps. They function identically in terms of heat production, but the red lamp is designed to produce less visible light. Heat lamps are widely used in foodservice to prevent freshly prepared, hot dishes from cooling down before being delivered to the customer.
Having six edges, or having a cross-section in the form of a hexagon. Hex Head may refer to screws, bolts, or wrenches such as Allen keys, Allen screws, or Allen wrenches.
A nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads' friction (with slight elastic deformation), a slight stretching of the bolt, and compression of the parts to be held together.
A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint.
A high limit ( "Hi Limit" or simply "Limit") switch is one of the most important safety features in numerous pieces of restaurant equipment. In the event that your equipment begins to operate at temperatures above maximum specifications, the high limit will shut down the unit. The high limit switch regulates equipment operation by closely monitoring the equipment's operating temperature.
A "holder" is a device or implement for holding, storing, or securing something. It may be a container or receptacle, a rack or rest, or even a bracket or screw.
Hood orifices are responsible for the amount of gas that flows to a burner. The orifice "regulates" or "limits" the transfer of gas by constricting the path through which the gas flows. They are brass fittings that screw into (spud) or onto (hood) gas valves. These orifices will have various hole sizes as as determined by the type of gas in use (either Propane or Natural Gas).
A hopper is a storage container used to dispense liquids or solids through the use of a chute or tube to restrict flow, sometimes assisted by mechanical agitation or a pump. A hopper may be refrigerated or heated.
Hose barbs are cylindrical pieces or parts for attaching and securing of hoses (tubing). The barb-like rings on the cylindrical piece allow for an easy push-connection of flexible-plastic or rubber tubing that is not so easily disconnected. Hose barbs are used in machine perfusion and chemistrylaboratory equipment. Hose barb fittings are small curved, bent or T-shaped pipes, hoses or tubes with hose barbs on at least one side used to join two or more pieces of piping (hosing, tubing) together.
A hose is a flexible hollow tube designed to carry fluids from one location to another. Hoses are also sometimes called "pipes" (the word pipe usually refers to a rigid tube, whereas a hose is usually a flexible one), or more generally "tubing". The shape of a hose is usually cylindrical (having a circular cross section).
A commercial hotplate serve as a supplemental heat source for holding or food preparation. Similarly, hotplates make for convenient portable cooking and are often used at omelette stations and other remote cooking stations.
A housing is a mechanical component's container or covering. In restaurant equipment, a housing is an exterior case or enclosure used to protect an interior mechanism, including integrated fittings or brackets to keep internal components in place. The housing prevents the interior mechanism from being fouled by outside debris or to contain the internal components.
Hubs are used to transmit mechanical power from a drive motor by coupling it to an output device such as a wheel or an arm. Hubs are generally centered joining points and may be implemented singularly or in tandem operation.
A hub attachment is any number of components that may be inserted into a hub (such as that of a mixer including a slicer, shredder, grater, grinder or chopper).