dr jekyll and mr hyde summary chapter 2
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
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... machine-driving shaft.
Sclater Chapter 3 5/3/01 10 :22 AM Page 87
66
Fig. 3 In another type of action, the forward and return strokes are accomplished by a suitable mechanism, while the raising and ... The bearings C
are supported by the frame as is the driving shaft D.
Sclater Chapter 3 5/3/01 10 :20 AM Page 66
85
Sclater Chapter 3 5/3/01 10 :22 AM Page 85
AUTOMATIC SAFETY MECHANISMS
FOR OPERATING ... 5
1
⁄
2
in. wide. Container height can vary from 2 to 14
inches. The unit handles labels ranging from
7
⁄
8
to 5
1
⁄
2
in. wide and
7
⁄
8
to 6
1
⁄
2
in. high. The label hopper is designed for labels...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 4
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22/10/2012, 14:26
... every lobe on gear
4, and T
3
/T
4
= L
3
/L
4
= 2/ 3, where T
3
and
T
4
are the numbers of teeth on gears 3
and 4. T
1
and T
2
will denote the numbers
of teeth on gears
1 and 2.
Next, select the ... 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 ... one gear pair,
say
3 and 4, is made partly circular and
partly noncircular, then where
r
2
= r
3
and
r
1
= r
4
for the circular portion, gear 4
dwells. Where r
2
≠ r
3
and r
1
≠ r
4
for the
noncircular...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 5
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... friction drives, and gears.
Fig. 1 An axial screw with a rack-actuated gear (A) and an articulated driving rod (B)
are both irreversible movements, i.e., the driver must always drive.
Fig. 2 A rack-actuated ... turns.
Dynamic and static balancing is simplified
when an expanding wheel is attached to a
nonexpanding main wheel. As a pulley, an
expanding wheel can have a steel band
fastened to only one section and ... transmission in a pressure gage.
Fig. 2 A lever and cam drive for a tire gage.
Fig. 3 A lever and sector gear in a differential pressure gage.
Fig. 4 A sector gear drive for an aircraft air-
speed...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 6
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... their seats.
Sclater Chapter 6 5/3/01 12: 25 PM Page 191
CHAPTER 6
SPRING, BELLOW,
FLEXURE, SCREW, AND
BALL DEVICES
Sclater Chapter 6 5/3/01 12: 24 PM Page 173
installed and integrated into a ... pressure. The screw in (B) retains and
drives a dowel pin for locking purposes. A right- and
left-handed shaft (C) actuates a press.
Sclater Chapter 6 5/3/01 12: 25 PM Page 1 92
Do you need a buffer between ... instruments.
Sclater Chapter 6 5/3/01 12: 24 PM Page 185
TRANSLATION TO ROTATION
1 92
Fig. 11 A hairline
adjustment for a tele-
scope with two alternative
methods for drive and
spring return.
Fig....
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Mechanisms and Mechanical Devices Sourcebook - Chapter 7
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... feed.
Sclater Chapter 7 5/3/01 12: 34 PM Page 23 5
23 2
BUSHED ROLLER CHAINS AND THEIR ADAPTATIONS
Various roller, side-plate and pin configurations for power transmissions, conveying, and elevating.
STANDARD ... speed.
Sclater Chapter 7 5/3/01 12: 33 PM Page 22 3
22 7
GETTING IN STEP WITH
HYBRID BELTS
Imaginative fusions of belts, cables, gears and chains are
expanding the horizons for light-duty synchronous drives
Belts ... r
4
for
facilitating hand filing.
Sclater Chapter 7 5/3/01 12: 33 PM Page 20 4
22 0
Fig. 4(A) Pressures and temperature indica-
tors. A pressure change causes the diaphragm
and sheave to move vertically and the...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 8
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... retainer.
Sclater Chapter 8 5/3/01 12: 43 PM Page 26 0
CHAPTER 8
GEARED SYSTEMS AND
VARIABLE-SPEED
MECHANISMS
Sclater Chapter 8 5/3/01 12: 42 PM Page 24 1
25 6
VARIABLE-SPEED FRICTION DRIVES
Fig. 2 Two disks ... motion.
25 8
VARIABLE-SPEED DRIVES AND TRANSMISSIONS
These ratchet and inertial drives provide
variable-speed driving of heavy and light
loads.
Sclater Chapter 8 5/3/01 12: 43 PM Page 25 8
27 9
SHEET-METAL ... complete nutation of the
Sclater Chapter 8 5/3/01 12: 42 PM Page 24 4
24 9
Sphere -and- disk drives (Figs. 12 and
13).
The speed variations in the drive
shown in Fig. 12 are obtained by chang-
ing the...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 9
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22/10/2012, 14:26
... constant angle.
Sclater Chapter 9 5/3/01 12: 57 PM 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 ... performance, endurance limit stress for fatigue perform-
ance
24 (El)
nS)
e
3
(
60
2
12
π
k
M
/
Sclater Chapter 9 5/3/01 12: 56 PM Page 29 8
322
SMALL MECHANICAL CLUTCHES FOR PRECISE SERVICE
Clutches ... Variable-torque drag brake . . . Fig. 2 . . . holds tension constant on tape Fig. 3 Constant-torque screwdriver
Sclater Chapter 9 5/3/01 12: 56 PM Page 306
307
SPRING BANDS GRIP TIGHTLY TO DRIVE
OVERRUNNING...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 10
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22/10/2012, 14:26
... 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 Chapter ... devices.
The hydraulic operation is exactly the
same as that described for the hydraulic
drives.
Sclater Chapter 10 5/3/01 1:08 PM Page 353
A band brake intended to obtain a
friction drag will give ... Chapter 10 5/3/01 1:07 PM Page 351
360
Limit Switches in Machinery (continued )
Sclater Chapter 10 5/3/01 1:08 PM Page 360
3 52
DRIVES FOR CONTROLLING TENSION
Mechanical, electrical, and hydraulic...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 11
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... ball valve. Its range is 20 to 27 0°F, and its accuracy is ±1°F. The
maximum pressure rating is 100 psi for dead-end service and 20 0 psi
for continuous flow.
Sclater Chapter 11 5/3/01 1:17 PM ... valve. Its temperature range
is 20 to 27 0°F, and its accuracy is ±1 to 4°F. It is rated for 5 to
125 psi of steam and 5 to 175 psi of water.
Fig. 8 These two recording and controlling instru-
ments
have ... CHAPTER 11
PNEUMATIC AND
HYDRAULIC MACHINE
AND MECHANISM
CONTROL
Sclater Chapter 11 5/3/01 1:15 PM Page 369
375
Fig. 8 The housing...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 13
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... (
θ
/2) = W /2 (22 )
JS/
[ (cos )]
[ (cos )]
max
/
/
=
−+
+
22 1
21
12
12
θ
θ
JS/
cos
[ (cos )]
(cos )
cos
(cos )
max
/
/
=
−
+
−+
−
+
+
+
1
21
1
1
1
21 21
12
2
12
θ
θ
θ
θ
θ
Sclater Chapter ... velocity, and
Fig. 6 for angular acceleration.
d
dt
mm
mm
2
2
2
2
22
1
12
β
ω
α
α
=
−
+−
sin ( )
( cos )
d
dt
m
mm
βα
α
=
−
+−
ω
cos
cos
1
12
2
D
d
a
n
r
= +2
4
180
2
22
cot
cos
cos
cos
β
α
=
−
+−
ma
mm 12
2
Fig. ... +
′
′′
=
−
1
1
1
1
2
2
12
221 2
22
R
L
RL
RL
x
L
R
L
RL RL
]]
[ ( / ) sin ]
cos sin cos
/
1
22 32
2
2
−
′′
=−
+
′′
+
′
RL
x
L
R
L
θ
ωθ
φ
ω
θ
φ
ω
θ
Slider acceleration
Sclater Chapter 13...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 14
Ngày tải lên :
22/10/2012, 14:26
... of materials.
2D drawing and detailing software packages are based on ANSI,
ISO, DIN, and JIS drafting standards.
In a 2D CAD drawing, an object must be described by multi-
ple 2D views, generally ... include
ã 2D drafting
ã 3D wireframe and surface modeling
ã 3D solid modeling
ã 3D feature-based solid modeling
ã 3D hybrid surface and solid modeling
Two-Dimensional Drafting
Two-dimensional drafting ... of the principles of 3D isometric and perspec-
tive drawing in the Middle Ages resulted in a more realistic and
accurate portrayal of objects than 2D drawings, and they con-
veyed at a glance more...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 15
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22/10/2012, 14:26
... Sclater. 2nd ed. 1996.
ISBN 0-07-136169-3
1. Mechanical movements. I. Chironis, Nicholas P. II. Mechanisms & mechanical
devices sourcebook. III. Title.
TJ181.S28 20 01
621 .8—dc21 20 0103 029 7
Copyright ... Technologies Group, Radford, VA
ã Ledex Actuation Products, TRW Control Systems, Vandalia OH
ã Sandia National Laboratories, Sandia Corporation, Albuquerque, NM
ã SolidWorks Corporation, Concord, MA
ã ... without
the prior written permission of the publisher.
123 4567890 KGP/KGP 07654 321
ISBN 0-07-136169-3
The sponsoring editor for this book was Larry S. Hager and the production supervisor
was
Pamela A....
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Mechanisms and Mechanical Devices Sourcebook - Chapter 12
Ngày tải lên :
22/10/2012, 14:26
... self-centering and stronger. Non-sliding gears
can be pinned to the shaft if it is provided with a hub.
Sclater Chapter 12 5/3/01 1 :25 PM Page 420
CHAPTER 12
FASTENING, LATCHING,
CLAMPING, AND
CHUCKING ... dimen-
sioned hubs and clamps so that they can be efficiently fastened to a
precision-ground shaft.
Sclater Chapter 12 5/3/01 1 :25 PM Page 421
415
Sclater Chapter 12 5/3/01 1 :25 PM Page 415
dle ... fashion.
Sclater Chapter 12 5/3/01 1 :25 PM Page 424
422
CLAMPING DEVICES FOR ACCURATELY ALIGNING
ADJUSTABLE PARTS
Methods for clamping parts that must be readily movable are as numerous and as varied...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 16
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... optical
8 22
Inductosyns
8 27
laser interferometers
3 6 8 22 27
magnetic
17 24
potentiometers, precision multiturn
8 22 28
resolvers
8 17 22 24
servosystem
22
tachometers
8 22 25 365 ...
encoders, rotary, optical
3 8 22
absolute
8 22 23
brush-type
22
hollow-shaft
22
incremental
8 22
linear, optical
3 6 8 22 23
rotary, magnetic
22 24
Index Terms Links
Linear variable ...
1 52
angular-momentum-balanced, robot
48
ball -and- cone
25 0
ball -and- disk, and
25 1
ball -and- screw
5 12
bearings and roller
117
belt
12 224 25 7
belt -and- chain, variable speed
22 4...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 17
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... both classical and mod-
ern mechanisms and mechanical devices. This edition retains a large core of the con-
tents from both the first and second editions, (published in 1991 and 1996,
respectively), ... has been supplemented by new and revised articles reflecting present
and future trends in mechanical engineering and machine design.
The new articles in this edition address topics that are covered ... guides, and X-Y motion systems assembled from stock mechanical components.
Other articles in this edition describe commercially available 2D and 3D CAD (com-
puter-aided design) software and update...
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