# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/859264114:0035
# Permalink to this reading: https://leibnizlegible.com/page/859264114:0035?run=74
# Title: Lectures De Potentia Restitutiva, Or Of Spring (shelfmarks Leibn. Marg. 105, Stück 1; Leibn. Marg. 105)
# Folio 27, page id 859264114:0035
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=859264114&page=35
# Source image: https://digitale-sammlungen.gwlb.de/content/859264114/jpgs/default/00000035.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 39 lines, status machine
# Lines: 39 recognised, mean confidence 0.89
# 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: the recognised lines in reading order, one per line.

atorelaid BVIEtONS OP TTaIPS M MI upon opening thC
CockOthe mater returneth chronsh the valre HITI
Sokeptopen, chroush che hole D, and chrougk thc
arhole lengeh ot the PipeF.
This was ot pustins a valre into the PIuX OEFOr-
cino Pumps will Bc ot great use tor aIl such as serve
For supplyins Fornsmich mater, and For quenching
OF Eire, as preventing a great incorivenience to wrhich
thecommon Pumps are ulually subject from the Nir
prhich is apt to be generated michin them, which Air
upon morkins che Caid Pump remaimine belo che
Forcer, and by its Expansion ihen the Plus is deamn
uprards, hindrins the mater trom filling the wrhole
Cavicy bencachie, and by its Condenlation irhen the
Pluxis Forced donrards, loline a great part ot the
Arensth oF theforce, much of the effect ot chelaid
Machinc is Frustraced.
For preventing oF ihich Inconrenience care is to
Betakcen that the mater in all chese Forcins PumpS BC
admicted br thetop thereotas in the present Machine,
Wrhereby Wrhaterer Rir Mall be generated belor the
Plug, will readily rise intothe hole D as being the
hishest place next the Plate F. P, From Whence irten
br the draming up oF thePlus thePlace is lifced From
thebrims oF thehole Dthe Nir will readily dip up
and the mater as readilu descend and fII ai the
parts oF the Pump belon the Plug. ASI hare often
experimented in this prelent Machine.
Some Persons mar object against chese Hind of
valres, assuppolins the pressure ot the atertobeon
therrrone sidethereot. But it is casie to be noted
thac chis objection is groundless, since it is the Pame
thins wrhether che Plate be pressed against the Rim
OEthevalre, orthe Rim oF theralve againtthe plate.
In common valres the Prelture ot the Water Forceth
thc Plate against the Rim: Bue in this the Rim against
thePlace; For the remainine Colid Rim oF the valve,
beins madethrice as bis asthehole or Cariey chereot,
t