Posts
Yes, zip screws are actually motors. It is the simplest type of motor. It is also a linear actuator, which is an actuator. An actuator is a type of motor for moving stuff. Hence, a screw is a motor. A linear actuator converts circular motion into forward motion in a straight line. A screw has a grooved head and a shaft with a helical external groove.
The world is full of tiny linear actuators. There are two types of screw head. The straight kind has a single groove and is manipulated into place with a straight screwdriver. The other type has two grooves perpendicular to one another. This is called a "crosshead" or Phillips screwdriver. It is used because of its self-centering activity. You can sometimes use a straight screwdriver to set a crosshead screw. The man credited with its invention was Henry F. Phillips (1890 - 1958).
It is amazing how little we know about the inventor of this household device that we all know about and need to use every now and again. Henry Phillips (1890-1958) came from Portland, Oregon. He purchased the design of the Phillips head, or "crosshead" from its creator, John P. Thompson. Phillips refined the design and secured the patent.
One of Phillips' first customers, in 1936, was General Motors, who put it to work on its Cadillac assembly lines. He sold the patents to Ford Motor Company in 1945 for approximately $5 million. Phillips died in 1958.
Now, while a phillips head screw can be set with a straight, ordinary screwdriver, it doesn't work very well the other way around. A phillips head screwdriver is useless for screwing a single-grooved screw. This is because it can't get a grip on the single groove. Most people give up and use a small coin, like a dime or a British half penny if they have one lying around. A table knife also works in a pinch if you are desperate.
A screw is different from a bolt, although they perform a similar function, holding stuff together. A bolt has external threads at one end and a head at the other. The bolt is slipped through two holes and a nut, which has internal threads, is wound around the external threads until the whole apparatus fits together tightly.
A screw, on the other hand, does not require a nut to hold it in place. Say you are going to hang a painting. First, a hole is drilled, for example, in a wall. Then a rawl plug, a screw-sized plastic is fitted into the resulting hole. The screw is then driven in, first by hand, then by screwdriver, but not all the way in. The painting is hung onto the part of the screw that is sticking out of the wall.
Zip screws are used mainly for sheet metal (the kind used for ducting) and guttering. These have an especially sharp point that is easy to pierce through thin, soft metal. It gets its name because it zips straight through. If, on the other hand, you want to work with a harder or thicker sheet of metal, then you would use a TEK screw.
The world is full of tiny linear actuators. There are two types of screw head. The straight kind has a single groove and is manipulated into place with a straight screwdriver. The other type has two grooves perpendicular to one another. This is called a "crosshead" or Phillips screwdriver. It is used because of its self-centering activity. You can sometimes use a straight screwdriver to set a crosshead screw. The man credited with its invention was Henry F. Phillips (1890 - 1958).
It is amazing how little we know about the inventor of this household device that we all know about and need to use every now and again. Henry Phillips (1890-1958) came from Portland, Oregon. He purchased the design of the Phillips head, or "crosshead" from its creator, John P. Thompson. Phillips refined the design and secured the patent.
One of Phillips' first customers, in 1936, was General Motors, who put it to work on its Cadillac assembly lines. He sold the patents to Ford Motor Company in 1945 for approximately $5 million. Phillips died in 1958.
Now, while a phillips head screw can be set with a straight, ordinary screwdriver, it doesn't work very well the other way around. A phillips head screwdriver is useless for screwing a single-grooved screw. This is because it can't get a grip on the single groove. Most people give up and use a small coin, like a dime or a British half penny if they have one lying around. A table knife also works in a pinch if you are desperate.
A screw is different from a bolt, although they perform a similar function, holding stuff together. A bolt has external threads at one end and a head at the other. The bolt is slipped through two holes and a nut, which has internal threads, is wound around the external threads until the whole apparatus fits together tightly.
A screw, on the other hand, does not require a nut to hold it in place. Say you are going to hang a painting. First, a hole is drilled, for example, in a wall. Then a rawl plug, a screw-sized plastic is fitted into the resulting hole. The screw is then driven in, first by hand, then by screwdriver, but not all the way in. The painting is hung onto the part of the screw that is sticking out of the wall.
Zip screws are used mainly for sheet metal (the kind used for ducting) and guttering. These have an especially sharp point that is easy to pierce through thin, soft metal. It gets its name because it zips straight through. If, on the other hand, you want to work with a harder or thicker sheet of metal, then you would use a TEK screw.
No comments:
Post a Comment