list two input and output devices
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
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... the
pickup ring holds two cores and lets
broken tablets fall through to an area
under the feeder table. Cores are
picked from ring slots, carried to
tablet press dies, and deposited in dies
by ... 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 ... breaks
while the machine is running, the unsupported idler carrier falls to
the base of the standard, and when the standard arrives at the sta-
tion in the raceway adjacent to the cam C, the lug L on the...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 4
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... 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 ... number of lobes
L
3
and L
4
on
the gears
3 and 4. In the drawings, L
3
= 2
and
L
4
= 3. Any two lobes on the two
gears (i.e., any two lobes of which one is
on one gear and the other on the ... 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...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 5
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... 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 ... 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 ... 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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... ARRANGEMENTS
Differential, duplex, and other types of
screws can provide slow and fast feeds,
minute adjustments, and strong clamping action.
Rapid and slow feed. With left- and right-hand
threads, slide motion ... forms. Here are two methods:
in the upper figure, two opposite-hand
threads on a single shaft; in the lower fig-
ure, same-hand threads on independent
shafts.
Fig. 16 Opposite-hand threads make ... two single-bearing units
are mounted in tandem on one of the parallel rails and two dual-
bearing units are mounted in tandem on the other rail to with-
stand any sideloads.
The concave steel rollers...
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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, ... conveying, and elevating.
STANDARD ROLLER CHAIN—FOR POWER TRANSMISSION AND CONVEYING
SINGLE WIDTH—Sizes
5
⁄
8
in and smaller have a spring-clip connect-
ing link; those
3
⁄
4
in and larger...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 8
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... motor 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 ... spherical disks and
rollers. This also reduces operating
stresses and wear. The input shaft runs
through the unit and carries two oppos-
ing spherical disks. The disks drive the
double-sided output disk ... of
the input shaft. Input shaft
a carries spur
gear
c, which has approximately twice
the face width of spur gears
f and d
mounted on output shaft b. Spur gear c
meshes with idler e and with...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 9
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... 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 ... outside band clutch
made as two full wrap bands with
an intermediate equalizer.
Fig. 4 An inside band
clutch operated by a
yoke having movement
along the shaft.
Fig. 5 A two- way acting band brake ... constant velocity and there is
axial freedom.
Fig. 2 This coupling consists of two universal joints and a short
shaft. Velocity transmission is constant between the input and output
shafts if...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 10
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... dis-
placement. In this case, two floating rolls
are combined with two separate con-
trollers and actuators. The first controls
the in-feed speed and tension of the
paper stock, and the second controls ... relative speed between
the two units, at all speeds and loads. The
variations caused by oil leakage and sim-
ilar factors are compensated automati-
cally by the idler roll and linkage. They
adjust ... torque-
splitting pinion to two torque-splitting
gears, then from the two torque-splitting
gears through the associated two bull
pinions to the bull gear, then to the output
shaft. The purpose...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 11
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... vane ends are rounded for line contact. (B) Two
vanes pivot in the housing and are driven by an eccentrically
mounted disk; vanes slide in glands and are always radial to the
housing, thus providing ... 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...
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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 ... however, because it would
then have only two degrees of freedom
and would, consequently, require two
inputs to control the output.
Simply constraining two adjacent
links would not solve the problem. ... 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...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 14
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... 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 ... 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 ... 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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... 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] ... 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 where the work was
performed have...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 12
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... vehicle and plate.
POSITIVE LOCKING AND QUICK-RELEASE MECHANISM
The object here was to design a simple device that would
hold two objects together securely and quickly release them
on demand.
One ... 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 ... is bulky and diffi-
cult to use, requires periodic mainte-
nance, and poses the threat of leakage of
hydraulic fluid, which can contaminate
the clean room.
The actuator rests on a stand and
imparts...
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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 ...
121
six-bar
119
drive
bearing -and- roller
117
disk -and- roller
117
three-gear
119
long
118
triple harmonic
121
Whitworth quick-return
121
wheel -and- slider
121
worm
109
eccentric ...
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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... first and second editions, (published in 1991 and 1996,
respectively), that has been supplemented by new and revised articles reflecting present
and future trends in mechanical engineering and ... 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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