A washer consisting of a steel ring cut through and bent into helical
form, which prevents a nut from unscrewing. Hammond
An act of spraying water into the atmosphere and on coal surfaces to allay
coal dust. BCI
A gear that meshes with a chain or crawler track. Nichols, 1
A gear that meshes with a roller or silent chain. Nichols, 1
A pouring hole in a mold; a gate. Standard, 2
a. To break ground with a drilling rig at the start of well-drilling
operations. Syn:spud-in
b. To bore, as the first 50 ft (15 m) of an oil well, by the use of a bull
wheel. Standard, 2
c. To commence drilling operations by making a hole. Wheeler, R.R.
d. To begin the drilling of a borehole with a spud or diamond-point bit.
Long
e. An offset type of fishing tool used to clear a space around tools stuck
in a borehole. Long
f. A cabletool drill bit. Long
g. An anchorage during dredging provided by a steel post underneath a
dredger that can be lowered by a toothed rack or by ropes until it is
secured in the seabed, riverbed, or dredge pond. Hammond
a. A mud or diamond-point bit used to drill through overburden or soil
down to bedrock. Long
b. A broad, dull, chisel-face drilling tool for working in earth down to
rock with a churn or cabletool drill. Long
A term applied to a borehole that has been started and the hole has
reached bedrock and/or the standpipe has been set. Long
a. A churn drill, churn-drill operator, or the special bit used to begin a
borehole by rotary, diamond, or churn drills. Long
b. A colloquialism for a small drilling-rig. Williams
See:churn drill
a. The operation, in rope drilling, of boring through the subsoil at the
start of a hole. BS, 9
b. In diamond and/or rotary drilling, a general term applied to drilling
through overburden with a fishtail bit, drag bit, or diamond-point bit.
Long
c. Sinking a conductor, standpipe, or casing with a churn- or cable-type
drill rig. Long
a. A broad dull drilling tool for working in earth down to the rock.
Standard, 2
b. A heavy chisel bit used in percussive drilling to drill through
subsoil. BS, 9
c. See:spud bit
d. The bit used to start the hole. When the hole is deep enough, regular
drilling tools are substituted. Williams
The working of a cable drill up and down on a short length of rope, when
passing through the superficial deposits down to bedrock. This section of
hole is cased. Nelson
A drill that makes a hole by lifting and dropping a chisel bit.
Syn:churn drill
In petroleum production industry, one who uses a lightweight, portable
drilling rig (spudder) for the drilling of shallow wells, or a regular
cable drilling rig to drill the first few feet of a well. Also called
spudder or spud driller. Syn:spud driller
In a churn drill, the winch that controls the drilling line.
Nichols, 1
Tool used to begin a borehole in earthy materials with a diamond or rotary
drill; also, a drilling tool used by a cable tool or churn drill.
Long
See:churn drill
See:spudding driller
See:spud
On a dredge, steel tubes pointed at the bottom and provided with lifting
tackle at the top that are used to hold and to move the dredge.
Nichols, 2