Questions tagged [terminology]

For questions about words, phrases and definitions that are specific to engineering.

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1answer
28 views

How do Test Indicator Flexible Holders hold rigidly when tightened?

If one were to search on Amazon for "Test Indicator Flexible Holders" you will turn up many items using this mechanism (please ignore the magnetic base; I'm not focusing on that part, just the red ...
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2answers
50 views

Difference between lead screw and worm screw?

I am confused whether a lead screw and a worm screw are the same exact thing. In my engineering workshop lab, they come up as separate things. For example, a worm screw is there in the indexing head ...
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22 views

What's the term for interchanging a frequently used machine with a seldomly used one?

I'm trying to find out the term used for the practice of interchanging/relocating/swapping 2 machines to compensate the wear and tear caused by the operation frequency differences between them. This ...
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9 views

Are dynamic frequency transmitters common? What's the terminology to use when searching for one?

Newbie question, moderately educated on RF but only the signal, not at all about the hardware. Looking to start experimenting on a concept that would require a dynamic shift over time from one ...
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3answers
36 views

Describing values as being 'assumptions' or 'assumed' - what is the correct approach in academic papers for civil engineering?

I am a language editor of academic papers in civil engineering (typically written in English by Poles). I frequently encounter the term 'assumption' being used to describe a value that is adopted ...
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1answer
51 views

Is the combination of blocks and lines in this old, very long telescope an implementation of some named structure or technique?

Below are two cropped views of "Johannes Hevelius's 8 inch telescope with an open work wood and wire "tube" that had a focal length of 150 feet to limit chromatic aberration." from Harvard University, ...
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2answers
147 views

What is this captive screw and barrel nut adjustment assembly called? Picture attached

I'm designing a precision adjustment bracket, and I'd like to have a component that allows the field tech to make small adjustments to push and pull on each axis of adjustment. I went looking to see ...
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14 views

How can one count the flutes on an end mill with diamond pattern?

This carbon fiber-cutting end mill tool has two intersecting spiral patterns going opposite directions. How can one determine the flute count for calculating feed rate?
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0answers
11 views

How do I relate Grab Strength and Grab Tear to the real world?

I'm looking at a spec sheet for a high density polyethylene woven fabric and I'm seeing the following parameters on it Tensile Grab Strength: Warp 155 / Weft 170 - tested ASTM D-5034-09 Grab Tear:...
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2answers
63 views

Looking for translation of “закладная втулка” (threaded bushing?)

Sometimes we need a strong threaded joint in some part that is produced using molding. Say, this part itself is plastic. Then we design the part with a hole and insert there a.. "threaded bushing"? I ...
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21 views

Correct terminology for a zero turn stator winding on a BLDC?

I'm designing a BLDC motor with some unique geometry constraints (~250mm long, ~45mm diameter with a ~35mm bore down the center) and am considering using straight copper bars carrying high current ...
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2answers
43 views

What is the protective part of a staircase handrail called?

Below the handrail of a staircase is some kind of gridwork to prevent people or objects from falling off the staircase into the space below. What is the term for this gridwork? - perhaps "handrail ...
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3answers
129 views

Meaning of “female eye” in a list of parts

A fellow translator is translating a list of parts into Russian, and can't understand the meaning of "female eye". Here's the table: Maybe someone here could come up with some ideas about the ...
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2answers
70 views

What is the entirety of breadth of road called?

As roadway consists of a width of road on which a vehicle is not restricted by any physical barriers or separation to move laterally source, what is a similar term which encompasses the width of the ...
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1answer
63 views

Difference between a Part and a Detail

I'm not sure I'm in the right place for this, if not, Apologies. In my education material under Construction Steel, in its application it lists Masking Details. Under Tool Steel it list an ...
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2answers
183 views

What is the technical name for a water reservoir that retains its contents via vacuum and ambient air pressure?

This is a strange question for me because this is so extremely common, but I have never heard a name to describe exactly what it is. This is commonly used to provide water to animals from a trough or ...
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1answer
46 views

What do I call this shaft that drives the rubber stopper into the glass vial in a vial stoppering machine?

I'm translating a Russian text about a drug product manufacturing process. The text mentions briefly the vial stoppering machine, in which rubber stoppers are first fed into the hopper and then ...
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2answers
62 views

What type of supports exists for ballscrews or leadscews?

For Linear actuators, a common mechanism is to use ballscrews with ballnuts. The ballscrew is supported at the two sides by a set of bearings which permit the rotation of the screw while keeping the ...
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1answer
125 views

Terminology: Flexible protrusion for a latch

What is the name for a protrusion of material that's built to be flexible in order to act as a latching mechanism? These show up in all kinds of products, but one of the most recognizable is in a snap-...
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3answers
80 views

How do I call this “cogwheel” that feeds tin cans to a specific position?

This is an above view of a system in which tin cans arrive via conveyor (1) to a "feeding star" ("подающая звезда" in Russian; No. 5) and are placed firmly in slot 4. (source in Russian) How does one ...
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1answer
39 views

Fluid-dynamics question: proper term

I am looking for the term used to describe a situation I've encountered. I'll use a standard hydraulic cartridge that you'd use to keep a door shut as an example, except this one can be locked out ...
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3answers
160 views

Are there standard terms that correspond to the anatomical axes, planes, and directions?

The field of human anatomy seems to have standardized on a number of useful terms to unambiguously describe the human body. For example the three planes and axes as well as various directions seem to ...
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3answers
832 views

What exactly is the sample period?

I thought the term sample period referred to the time interval between one measurement and another. But I've come across this article which says About every tenth of a second, a dataset, $S(i)$, of ...
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1answer
135 views

Two angular velocities on two segments connected by a hinge joint differ only by the joint angle velocity

I was reading this article called "Joint Axis and Position Estimation from Inertial Measurement Data by Exploiting Kinematic Constraints", but I'm not understanding one part, which doesn't let me ...
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1answer
85 views

Translating the name of a type of beam from Russian to English

I am trying to translate the name of a special kind of beam from a set of Russian-language drawings. The dictionary translates the name as simply supported beam, but it's not that simple. There is a ...
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7answers
4k views

What is the opposite of “parallel” in engineering?

The two towers of the Verrazano Bridge are not parallel: they are [???] to account for the curvature of the earth. What is that word?
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1answer
93 views

Name of a keel between the bilge keel and the main keel

I'm working on a seaplane and find myself doubting about the specific nautical term for a keel placed between the bilge keel and the main keel. This might be a bit academic in nature since I have a ...
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2answers
2k views

Difference between Linkage, Kinematic chain, Mechanism, Mechanical element, Mechanical machine and their precise definitions

Recently I started to study about "Design of mechanical machinery". Since I am a person who is very sensitive about words I want to know the difference between these notions and their precise ...
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1answer
124 views

Channel or Canal?

This is about navigable or irrigation water ways. Examples: Navigable channel or navigable canal? (it is about approach water ways to sea ports, or artificial inland water ways). Channel dredging or ...
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2answers
159 views

What would you call this mining vehicle? (Ural-20R, used in mining)

On the image below is a mining machine produced by the Kopeysk Machine-Building Plant. I'm not sure how to call it in English. The Russian name is "prokhodchesko-ochistnoy kombain". Multitran offers ...
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3answers
139 views

Base or foundation?

Please help, what is the correct term for: The bottom/foot part of building or structure which carries loads from the building/structure and transfers the loads to the soil/earth/ground beneath it? ...
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1answer
716 views

What does the abbreviation “B.C.” mean on a weld joint diagram?

A translator posted this diagram of a weld joint on a translator's forum (the figure below). What does the abbreviation "B.C." mean on the diagram?
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2answers
97 views

What's the term used for machine parts orientation naming on the sagittal plane and from inside the machine?

I know that the current title can be hard to understand. Let me try to explain our problem: We do manufacture and service industrial machines and we are currently updating our spare parts manuals for ...
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2answers
145 views

How do you call the intersection with barrier and you can always right turn?

In the photo above I can name the first 3 intersection a) Regular intersection b) T intersection c) Skewed intersection I am having a hard time on identifying the fourth intersection, what do you ...
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1answer
88 views

What is the etymology of “bridge cam gauge”?

On the pictures below is a tool called "bridge cam gauge", mentioned in this answer. I wonder why the words "bridge" and "cam" are used in its name. I found a definition of "cam" that might be ...
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2answers
1k views

What tool does one use to inspect pipe bevel angles?

My translation of a document published by the Pervouralsk New Pipe Plant: Inspection of pipe-end root face (“face ring”) Inspection of this type is carried out as required by the ...
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1answer
88 views

Is “critical pipe” a proper term for a pipe used in a critically important role?

My translation: Internal pipe diameter inspection This kind of inspection is carried out on a by-order basis using a certified gauge (for sizes 40 mm and above) of the go/no go type, with ...
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1answer
97 views

Looking for a common term for “non-circular pipe”

In Russia, there's a special term for a pipe that is not circular in its section: "a profiled pipe" (профильная труба). There's even a Wikipedia page for it: профильная труба. Such pipes come in a ...
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3answers
332 views

Phrase for describing a cable without a connector at the end

I've been translating a truck scale description in a business offer letter, and the specification table there, listing the five parts comprising the prospective order, says on line five: Cable for ...
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2answers
160 views

Questions on machinery terminology

I have some questions in the basics of machinery terminology Can a spring ever be a link? Most books (eg. Ham et al. 58, Shigley pg. 5) consider links to be rigid. However, I have come across ...
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1answer
220 views

What is the correct term for long cuts in a floor joist?

I would like to identify the correct term for a long, lateral cut within a floor joist. Based upon this guide and several other sources that I have come across, a ...
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3answers
1k views

What do you call a mechanism where rotation is transfered in one direction only?

I have the following to wheels that rotate on the same axis: Assuming that they are stuck together, if I rotate the green one the red one rotates at the same speed and when I stop the green one the ...
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2answers
430 views

What is the meaning of 'clutch fill'?

What is the meaning of clutch fill? See for example this paper.
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1answer
125 views

What is a slotted open ring with a thread called (like on bicycle brake levers)?

I'm looking for a small ring that allows a thin cable to pass through but can also lock to close that opening, like on bicycle brake lever screws (shown below). However, I'm having trouble finding the ...
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3answers
633 views

What do you call the steel property that reduces the likelihood of shattering?

What is the property of not shattering, in for example a brisant explosion, called? And what kind of steel would I want that has this property?
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1answer
105 views

What is Byte Alignment Time in radio communication?

According to this paper, which deals with time synchronization in wireless networks, this kind of delay occurs, however I do not understand its explanation. The paper says the reciever (radio) has to ...
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4answers
452 views

How would you refer to a bolt mounting slide as opposed to a simple hole?

I'm writing a patent application and my device incorporates a similar design as what I've seen used on Dovetale plates. However, instead of a preset hole for positioning a bolt to mount to, a grooved ...
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5answers
14k views

What do you call the difference between the on and off temperatures in a simple thermostat?

A simple thermostat will turn on at one temperature and off at a higher temperature. This keeps the thermostat from cycling on and off too quickly. The difference between these values is sometimes ...
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1answer
136 views

What is the meaning of a “trip angle” in a level sensor?

What does trip angle mean in the context of slope / level sensors / inclinometers?
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4answers
366 views

What is the Technical Term for this kind of slot?

I am looking for the technical term which describes the kind of slot one finds commonly in modern phones to hold SIM cards. More specifically, what does one call a slot that one pushes the SIM card ...