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Who said: “A change in motion is proportional to the motive force impressed and takes place along the straight line in which that force is impressed.”
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Thumbnail of Charles Joseph Van Depoele (source)
Charles Joseph Van Depoele
(27 Apr 1846 - 18 Mar 1892)

Belgian-American inventor who was a pioneer in railway, electric lighting, and mining work, with more than 100 patents on electrical inventions. He designed electric streetcar systems for several cities.

The 243 U.S. Patents of Charles Van Depoele

From 1881 to 1894

1881  247278 Dynamo-electric machine
1882  257988 Shunting device for electric lights
  257989 Electric-arc lamp
  257990 Combined electric motor and generator
  259061 Dynamo electric machine
  259062 Electric lamp
  261280 Electric-arc lamp
  262333 Electric-arc lamp
  266735 Inductorium
1883  270352 Device for controlling electrical currents
  275549 Dynamo-electric machine
  276099 Storage or secondary battery
  282414 Secondary electric battery
  284779 Retort for carbonizing incandescents
  285527 Device for adjusting the brushes of dynamo-electric machines
  285528 Regulator for electric apparatus
  285529 Secondary battery
  285857 Electric motor
  285858 Electric railway
  285859 Automatic electric-circuit changer
  286093 Electric lamp
  286094 Electric-arc lamp
  287343 Regulator for dynamo-electric machines
  287344 Electrode for electric-arc lamps
  287345 Safety-switch for dynamo-electric machines
  287346 Insulating material
  287347 System of generating and distributing electric currents
  288682 Safety cut-out for electric lamps
1884  291553 Electric-arc lamp
  291554 Regulator for dynamo-electric machines
  291648 Electric-circuit closer
  291649 Electric safety cut-out
  291650 Current-regulator for electric motors
  291651 Electric lamp
  291652 Safety cut-out for series of electric lamps
  291653 Electric-arc lamp
  294165 Motor for electric regulators
  294532 Electric-arc lamp
  294533 Electric lamp
  297878 Dynamo-electric machine
  298431 Inductorium
  300535 Dynamo-electric machine
  304377 Electric focusing-lamp
  304378 Dynamo-electric machine
  307884 Apparatus for operating tools by electricity
1885  317249 Electro-magnetic reciprocating engine
  320515 Electro-magnetic reciprocating engine
  323470 Cut-out for dynamo-electric machines
  323981 Regulator for incandescent electric lighting systems
  323982 Electric motor
  323983 Incandescent lamp
  323984 Suspended electrical conveyor
  324193 Process of making incandescents
  324899 Electric railway
  325133 Regulator for dynamo-electric machines
  325225 Electric-current meter
  329104 Electric cable conveyance
  331585 Contact device for suspended electric conductors
  331851 Cable conveyance
1886  334062 Overhead conductor for electric railways
  335659 Regulator for dynamo-electric machines
  336452 Electric-arc lamp
  336453 Overhead conductor for electric railways
  337897 Electro-magnetic reciprocating engine
  337898 Carriage for rock-drills
  337899 Carbon for incandescent lamps
  338320 Dynamo-electric generator
  338321 System of generating electrical currents
  338375 Electro-magnetic reciprocating engine
  344425 Suspended electrical conductor
  346963 Automatic suspended switching device for electric railways
  347901 Electric-railway traveler and switch-operator
  347902 Electro-dynamic motor
  347903 Regulator for electric motors
  347904 Dynamo-electric railway-brake
  347905 Underground conduit for electric railways
  348360 Electro-magnetic railway-brake
  350221 Power-connection for railway-trains
  352074 Commutator-brush
  352167 System of motors for electric railway-brakes
  353333 Incandescent electric lamp
  353334 Automatic circuit-controller for electroplating-machines
  353335 Electric locomotive
  353653 Composition of matter for insulating electric conductors
  337896 Dynamo-electric machine
1887  358512 Suspended conductor for electric railways
  362798 Electro-dynamic motor
  367475 Roof for suspended electric conductors
  367685 Electro-magnetic railway-brake
1888  390921 Carbon contact or commutator-brush
  393275 Closed conduit for electric-railway conductors
  393276 Underground conduit for electric conductors
  393277 Turn-out and crossing for underground conduits
  394035 Electric motor
  394036 Duplex electromotor
  394417 Safety device for electric motors
  394525 Safety device and signal for electric motors or generators
  393278 Switch for overhead conductors
  393317 Arched suspender for overhead electric conductors
  394037 Constant upward-pressure contact for overhead conductors
  394038 Duplex upward-pressure contact
  394039 System of suspending electric conductors
1889  396310 Traveler for electric railways
  396311 Hooked suspender for electric-railway conductors
  396312 Suspension device for electric-railway conductors
  396313 Adjustable crossing and switch for overhead conductors
  396314 Commutator-brush carrier for electric motors
  397451 Overhead contact and switch
  398294 Cable-railway system
  399950 Friction-gear for electric motors
  400274 Friction-gear for electric motors
  400375 Pneumatic flexible-slot conduit for electric-railway conductors
  400809 Alternating-current electric reciprocating engine
  401231 Reciprocating electric-engine system
  402117 Universal upward-pressure contact-arm
  403801 Electric railway
  404324 Electro-dynamic motor
  404325 Closed slotted conduit
  405627 Switch for suspended electric conductors
  405628 Closed slotted conduit for electric railways
  405750 Standing contact-arm
  406797 Closed slotted conduit for electric railways
  406798 Mechanism for controlling electric-railway motors
  407749 Extensible upward-pressure contact-arm
  408638 Contact-arm for electric-railway motor-cars
  408639 Underground conduit for electric railways
  408640 Multiple-motor electric locomotive
  408641 Alternating-current motor
  408642 Inductional electric motor
  409156 Double suspended conductor system for electric railways
  413986 Alternate-current induction-motor
  414609 Spring-switch for overhead electric conductors
  417121 System of switching for conduit electric railways
  417122 System of supplying currents to electric railway systems
  417654 System of electrical distribution of currents
  401230 Regulator for dynamo-electric machines
  403009 Slotted conduit for electric conductors
  403010 Electric connection for railway-rails
  403011 Electric locomotive
  403800 Slotted conduit for electric conductors
  405626 Slotted conduit for electrical conductors
  417120 Drop-switch for electric conductors
1890  422265 Carbon commutator brush and holder
  422266 Electric-railway motor car
  422855 Pulsating electric generator
  422856 Pulsatory-current motor
  422857 Alternate-current pulsating system
  422858 Converting continuous into pulsating electric currents
  422859 Pulsating-current system
  422860 Multiple-current pulsating generator
  424381 Trolley-arm for electric-railway cars
  424695 Suspended switch and traveling contact for electric railways
  424910 Contact device and switch for electric railways
  424911 Electric-railway motor
  429745 Electric connection
  429746 Electric-railway-motor truck
  429981 Electric-railway-conductor system
  431492 Reciprocating electric engine
  431493 Reciprocating electric engine
  431494 Reciprocating electric-engine system
  431495 Reciprocating electric engine
  431496 Reciprocating electric-engine system
  432345 Multiplex electric locomotive
  433834 Induction-motor
  434410 Closed conduit for electric conductors
  434684 Electric-railway system
  434685 Alternate-current electric-railway-train system
  434686 Electric-railway-train system
  434687 Electric-railway system
  434816 Multiple-circuit electric motor
  435261 Generator for electric-engine circuits
  435262 Structure for supporting and insulating suspended bare conductors
  435263 Electric-railway conduit with tubular conductor
  435264 Reciprocating electric hammer
  436275 Pulsating-current-battery system
  436276 Adjustable-current reciprocating-engine system
  436277 Electric power-hammer
  437533 Support and insulator for suspended conductors
  437534 Upward-pressure contact device for electric railways
  437535 Motor-truck for electric-railway cars
  438452 Electric railway-brake
  440977 Generator for pulsating currents
  443980 Electric motor
  424380 Combined conduit and overhead system for electric railways
  429747 Telpher system
  440976 System of electrical transmission of power
  443019 Magnetic shield for electric motors
1891  444188 Electric-motor
  445102 Electric-motor reciprocating engine
  447214 Multiple rock-drill
  447215 Electric-railway system
  448561 Electric-railway motor
  448562 Electric locomotive
  448563 Electric-railway system
  450541 System of electrical distribution
  450542 Reciprocating electric-railway motor system
  450543 Electro-magnetic reciprocating engine
  450544 Pulsating-current electric motor
  451786 Operating reciprocating electric engines
  452296 Electric reciprocating engine
  455520 Pulsating-current reciprocating electric-engine system
  458867 System of electric-railway conductors
  458868 Electric coal-mining machine
  458869 Circuit-controller for electro-magnetic engines
  458870 System of supplying current to reciprocating electric engines
  458871 Telpher system
  458872 Electro-magnetic reciprocating engine
  458873 Combined electric engine and pump
  458874 Reciprocating electric engine
  458954 System of reciprocating electric engines
  461293 Motor-truck
  461294 Automatic electric pump
  461295 Electrically-actuated pump
  461297 Actuating device for moving commutator-brushes
  462751 Electric-railway motor
  458866 Closed conduit for electric railways
  461296 Armature for electric motors
1892  467448 Electric railway
  470521 Electric generator
  467449 Controlling apparatus for electric motors
  467450 Electro-magnetic reciprocating pumping-engine
  467451 Reciprocating electric engine
  479960 Controlling mechanism for reciprocating electric engines
  479961 Feed mechanism for electric reciprocating engines
  479962 Reciprocating electric engine
  479963 System of supplying currents to reciprocating electric engines
  479964 System of distributing electric currents
  479965 Reciprocating electric pile-driver
  479966 Electrical transmission of power
  488928 System of electrical distribution
  488929 Electric-railway trolley
  488930 Electric locomotive
1893  495383 Overhead contact device and switch
  495443 Traveling contact for electric railways
  496329 Telpher system
  496330 Electric locomotive
  496331 Electro-magnetic reciprocating pump
  502243 Electric-railway trolley
  507945 System of electrical transmission of power
  507946 Portable electric pump
1894  515308 Electric-railway trolley
  523822 Electromagnetic reciprocating pump
  529671 Gearless electric locomotive

See also:

Nature bears long with those who wrong her. She is patient under abuse. But when abuse has gone too far, when the time of reckoning finally comes, she is equally slow to be appeased and to turn away her wrath. (1882) -- Nathaniel Egleston, who was writing then about deforestation, but speaks equally well about the danger of climate change today.
Carl Sagan Thumbnail Carl Sagan: In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) ...(more by Sagan)

Albert Einstein: I used to wonder how it comes about that the electron is negative. Negative-positive—these are perfectly symmetric in physics. There is no reason whatever to prefer one to the other. Then why is the electron negative? I thought about this for a long time and at last all I could think was “It won the fight!” ...(more by Einstein)

Richard Feynman: It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the facts ... if the facts are right, then the proofs are a matter of playing around with the algebra correctly. ...(more by Feynman)
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