list ten input and output devices
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
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... braiding, tension on the wire or thread lifts the idler
carrier which then releases the pawl from the ratchet on the spool
flange and allows the spool to turn and unwind. When the machine
stops, the tension ... enters the
unsealed packages and is stopped against the contents. If the
box is not filled, the finger enters a long distance. The pawl
end at the bottom engages and holds a ratchet wheel on ... the raising and lowering of the transport is accomplished by a cam. The shafts,
F, E,
and D are positioned by the frame of the machine. Special bell cranks support the transport
and are interconnected...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 4
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... near standstill.
In the disengaged position, the angu-
lar velocity ratio between the output and
input shafts (the “gear” ratio) is entirely
dependent upon the design angles
α
and
β and independent ... this intermittent drive, the two rollers drive the output shaft
and lock it during dwell periods. For each revolution of the input shaft,
the output shaft has two motion periods. The output displacement ... relationship
between the input and output.
Computer consulted. To obtain inter-
mittent motion, a four-bar linkage is
superimposed on the mechanism by
adding a crank to the input shaft and a
connecting...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 5
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... 138
134
TWELVE EXPANDING AND CONTRACTING DEVICES
Parallel bars, telescoping slides, and other devices
that can spark answers to many design problems.
Fig. 1
Figs. 1 and 2 Expanding grilles are often
put ... The input
then drives the output with the bevel
gears. Rotating the adjusting shaft in a
plane at right angles to the input- output
line changes the relative radial position
of the input and output ... continuous
rotary input motion into an output that oscillates the shaft back
and forth.
Sclater Chapter 5 5/3/01 11:47 AM Page 170
inputs, and z is the output. The motion of x and y in the same...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 6
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... linear spring rate and high load
resistance with small deflections.
For height to spring ratios between
0.8 and 1.0—An almost linear spring rate
for fasteners and bearing and in stacks.
For rations ... radial and axial support without
the need for lubrication. The design com-
bines high radial and axial stiffness with
a relatively low and controlled angular
stiffness. Considerable attention ... and neg-
ligible hysteresis characteristics. The
bearing is radiation-resistant and can be
used in high vacuum conditions or in
environments where there is dirt and
contamination.
185
TAUT BANDS...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 7
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... magnetic signal amplification. A rotating input avoids a lin-
ear input and output of the simple windlass. Control and output ends of the mul-
titurn bands are both connected to gears mounted ... motor, the maximum output speed
will be 1200 = 3984 rpm, and the
minimum output speed = 3984/11 = 362
rpm.
Double-reduction system (Fig. 3).
Solid sheaves are on both the input and
output shafts, ... water, and
wash. The motor pivots (B) about the left
roller increasing belt tension in propor-
tion to the output torque. When the bas-
ket reaches maximum speed, the load is
reduced and belt tension...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 8
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... com-
parable in size and power to those used in
standard reel-to-reel recorders, and a
large bi-peripheral flywheel and sturdy
capstan that reduces wow and flutter and
drives the tape. A patent application ... balance between
transmitted torque and operating life.
Input and output functions always
rotate in the same direction, irrespective
of the number of bearings, and different
results can be achieved ... cheaper,
and more extensively used than the drive
of Fig. 2. Chamfering the sides of the teeth
eases their engagement.
Fig. 4 Swivel-gear drive.
Output gears are fastened to
the shaft. A handle...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 9
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... clutch, on the other hand, is a three-member unit
with rotating input and output members and a stationary coil
housing. It eliminates the need for brushes and slip rings, but it
demands additional ... Page 317
336
LINKAGES FOR BAND CLUTCHES
AND BRAKES
Fig. 1 An outside band
clutch operated by a roller
and cone.
Fig. 2 An outside band
clutch made as two half
wrap bands with an interme-
diate ... require lubri-
cation and maintenance. The rubbing
parts also absorb power. Moreover, the
lubricant and the seals limit the coupling
environment and coupling life. Parts
wear out, and the coupling...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 10
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... electric machinery and protect
it and its operator.
Actuators Linear mechanical switches
Sclater Chapter 10 5/3/01 1:08 PM Page 356
CHAPTER 10
TORQUE-LIMITING,
TENSIONING, AND
GOVERNING DEVICES
Sclater ... preparation in a coil that is sound
and slip-free. An automatic, constant-
350
Speed and Tension Control (continued)
Fig 4 Floating rolls are direct indicators of speed and tension in the paper web. Controller-
actuators ... conveyor sections and control
the speed of the driving mechanism of
the following section. The material forms
a slight catenary between the stations,
and the change in the catenary length
indicates...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 11
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... POWER
Cartridge-actuated devices generate a punch that cuts cable and pipe,
shears bolts for fast release, and provides emergency thrust.
Sclater Chapter 11 5/3/01 1:17 PM Page 402
Fig. 1 Automatic weighing and ... simplicity, and cost.
Fig. 1 A bimetallic sensor is simple, compact, and precise.
Contacts mounted on low-expansion struts determine slow make-
and- break action. A shell contracts or expands with ... single-gland type.
Automatic wear control compensates for normal wear and
maintains volumetric efficiency. This pump will handle 5 to
300 gph without churning or foaming. It needs no lubrication
and...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 13
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...
ψ
13
and
ψ
12
. This establishes points A′
2
, A′
3
and
A′
4
, but here A′
3
and A′
4
coincide because of symmetry of A
3
and A
4
about A
0
B
0
.
4. Draw lines
A
1
A′
2
and A
1
A′
4
, and the ... is
the output and it replaces the center gear in Fig. 1.
Fig. 7 A more practical ring-gear and slider arrangement.
The output is now from the smaller gear.
Fig. 8 Jensen’s model of the ring-gear and ... on a conveyor is tilted 90º by an output crank,
which is actuated by an input crank through a coupler. Other
mechanisms shown can also coordinate the input and output
angles; some have dwell periods...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 14
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... permit lettering, callouts, and the entry of notes and
parts lists, and some even offer the capability for calculating such
physical properties as volume, weight, and center of gravity if the
drawing ... than 5 ms/step. An
input of two simple input pulse signals will
operate it. This motor can index gears in
MEMS such as locking devices, counters,
and odometers. It was built with Sandia’s
four-layer ... capability and verifying commercial
demand. Initially ADI built these devices by interleaving, com-
bining, and customizing its internal manufacturing processes to
produce the micromechanical devices...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 15
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... because of their potential applications beyond
NASA’s immediate objectives in space science and requirements for specialized equip-
ment. The names of the scientist/inventors and the NASA facilities ... Technologies Group, Radford, VA
• Ledex Actuation Products, TRW Control Systems, Vandalia OH
• Sandia National Laboratories, Sandia Corporation, Albuquerque, NM
• SolidWorks Corporation, Concord, MA
• ... Data
Sclater, Neil.
Mechanisms and mechanical devices sourcebook / Neil Sclater, Nicholas P. Chironis.—
3rd ed.
p. cm.
Rev. ed of: Mechanisms & mechanical devices sourcebook / [edited by]...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 12
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... applied.
This spring clamp has a cam -and- tension spring
that applies a clamping force. A tension spring acti-
vates the cam through a steel band. When the handle
is released, the cam clamps the ... left-handed
threads,
• An eye on a shank with external right-
handed threads, and
• A flanged collar with left-handed external
threads to mate with the shank of the first-
mentioned eye, and right-handed ... Center.
407
TOGGLE FASTENER INSERTS,
LOCKS, AND RELEASES EASILY
A pin-type toggle fastener, invented by
C.C. Kubokawa at NASA’s Ames
Research Center, can be used to fasten
plates together, fasten things...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 16
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...
angular-momentum-balanced, robot
48
ball -and- cone
250
ball -and- disk, and
251
ball -and- screw
5 12
bearings and roller
117
belt
12 224 257
belt -and- chain, variable speed
224
cam for ...
primary
348
secondary
348
speed and tension
350
temperature
220 349
Inductosysns (See sensors feedback)
Input/ output (I/O)ports
7
Instruments, recording and controlling
397
Integrated ...
158
ring gear and slider
450
ring and slider, Jenson’s
450
robot
34
rocker arm and disk
123
roller-dwell
119
rotary, short-dwell
112
rotary-to-reciprocating motion and dwell
116...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 17
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... core of the con-
tents from both the first and second editions, (published in 1991 and 1996,
respectively), that has been supplemented by new and revised articles reflecting present
and future trends ... Mechanisms & Mechanical Devices Sourcebook, a well illus-
trated reference book containing a wide range of information on both classical and mod-
ern mechanisms and mechanical devices. This edition ... illustra-
tions and descriptions of basic mechanisms and mechanical devices, accompanied by
useful applications information. This material has been culled from a wide range of
books and magazines...
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