Bildergalerie: Description 1074984 in Directory 19

Thomas <>

DTXT_TITLE: Thomas Hill Addier-Maschine (1857)
DOC_TYPE: Image
ARCHIV: 1000
FIL_ID: 1074984
FIL_ORG: IMG0026.PCD
FIL_EXT: pcd
FIL_WIDTH: 3072
FIL_HEIGHT: 2048
FIL_RES: 72
FIL_SIZE: 3614720
FIL_COLOR: YCC
FIL_ROTATE:
FIL_CLIP:
FIL_CROP: 1932, 2384, 388, 72
FIL_IMG: 0026
FIL_PATH: Box_03/CD_069/PHOTO_CD/IMAGES
DOC_SPERRVERMERK:
DOC_INPUT: 04-05-1995 00:00:00
DOC_UPDATE: 30-06-2004 11:15:37
DOC_STATUS: 4
DOC_KATALOG: 1
DOC_SPERR: 3
BESCHREIBUNG: In 1857 Thomas Hill secured a patent on a multiple order key-driven calculating machine which he claimed as a new and useful invention. The patent indicated that the machine could be used addition, subtraction, multiplication and division and had tens carry mechanism very similar to that of the Pascal machine. Although this device was impractical, it did anticipate the commercially massed produced machines of 30 years later.nThe Hill machine would have been practical if it had taken into consideration the physical law that "bodies set in motion tend to remain in motion." As in the case of all attempts of this period to perfect a key-operated machine, no provision was made to overcome the momentum given the numeral wheels in this machine through manipulation of the keys, either from direct key action or indirectly through the tens carry. Consequently, correct results could not be obtained. It is believed to be the first American calculating machine which used key-driven counter wheels.
BU:
IBM_NUMMER: 20358
FARBE: sw
RUBRIK: Allgemein
BILDART: Sachaufnahme
STICHWORTE: Rechenmaschine, Historie
FORMAT: Quer
ORIGINAL: Aufsicht
BILDRECHTE: IBM
EINGABE: Häßler
EXPORTPATH: 19/images/1074984.pcd

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