# Leibniz Legible — https://leibnizlegible.com
# Piece: https://leibnizlegible.com/api/records/27800/text
# Catalogue record: 27800 — Hydrocontisterium promotum Januar 1678
# Incipit: In vase cavo ABCD, cuius sectio basi
# Date: 1678-01
# Akademie-Ausgabe: AA VIII (assigned, not yet published)
# Other printings: Münzenmeyer, Drehschieberpumpe 1978, S. 251-252
# Record in the Leibniz-Katalog: https://leibniz-katalog.bbaw.de/de/extended-search?id=27800&katnr=55771
# Work: https://leibnizlegible.com/work/00068537
# Title: Leibniz-Handschriften zur Technica LH 38
# Folios: Bl. 88 (from the shelfmark LH 38 Bl. 88): 2 pages, canvases 175–176, page ids 00068537:0175 to 00068537:0176
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00068537&page=175
# Lines: 56 recognised on 2 of 2 pages, mean confidence 0.94
# Catalogue: Leibniz-Katalog / Arbeitskatalog der Leibniz-Edition (https://leibniz-katalog.bbaw.de/), ed. Arbeitsstelle Potsdam I der Berlin-Brandenburgischen Akademie der Wissenschaften, CC BY 4.0.
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line, page by page: a "## Folio <label> — <page id>" line ("## Canvas <n>" where no folio label is recorded), "# " lines naming its source image and model, then its recognised lines in reading order, one per line.

## Folio 88r — 00068537:0175
# Source image: https://digitale-sammlungen.gwlb.de/content/00068537/jpgs/default/00000175.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 49 lines, status machine
tant178
A praeterea et
Hydracontisterium
ABCd
promotum
in vase cavo  cujus sectio basi
parallela in figura exhibetur, sit
tympanum efgh lm mob busi paralle
cum et circa tuum quoddam centrum
mobile. in medio tumpani fissura e fhI
in qua ad angulos rectos insistit tabula enpl
quae  in parte B ita formata ac polita esse debet
ut tota sua altitudine Bn, vasis interiorem cavitaten
Cavam cylindra ceam exacte radat. atque ita comnuniica
tionem inter duas vasis partes BCDge et BADme
perfecte intercludat. quod fiet vel si probe polita sit
vel si matoriam cedentem, lineam, lantam, stuppeam, vel
similem praefixam gerat, ut qualias alias embuslis
in D tympanum circumdari solet.  C Noto jam Cympano secundum
interiorem vasis
superficiem ob
eandem ratio.
nem eracte ra
dere debet
in dse
ordinem punctorum f ghlmre, transferetur Bn ex B
in (B) enmque punctum (B) minus distet a tympano quam punctum
B. hinc necesse est tibulam BnpB esse tatem ut contrahi
atque in se ipsam recedere possit, dones Bn delato in D.
plane intra tympanum se recondat et etra D autem pro
gressa rursus libertatem recipiet pausutim ope inclusi elater
elastri. Cogitandum est autem alteram Tabulae parte
ilu ergo
lP eodem modo esse comtaratam. Hoc modo aqua
a Tabula semper propulsa in dextiam partem nec
unquam regrediens extrat exgelletrur per C. nova autem
attrahetur per A. Caeterum ut melius claudatur, etiam tym
pani et vasis interstitium in D. utile erit illic ex vasis
concava superficie in D etiam prodire tabellutam hujus modi
mobilem et probe politam, vel alioqui ptipatam, quae proprie
efassio perpetuo enitens locum perfecte claudet. Hac porro
ratione fiet per Elastra ista, ut etsi abradatur nonnihil
aut tenipean
ex tremitate, tamen
de vasis aut superficie, vel tabellarum
tabellis sese ex tendentibus semper tamen claudatur locus.
ut autem habella se contrahere atii explicare possit folle
quasi quodam, vel simili alia ratione fiet,; quam explicare
nihil opus est. Duae ruta rem efficinat sine tal contractione

## Folio 88v — 00068537:0176
# Source image: https://digitale-sammlungen.gwlb.de/content/00068537/jpgs/default/00000176.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 7 lines, status machine
lovum Ahtliae genu, in qua embolo intrante aqua
la
trahatur retracto expellitur emachina
apert
haec antilia ab una tantum parte
sit vas ABCDEFG in qua aefilia
aperta in Ip. clausa in min.