V3 · Sonnet

Talar · conceptual cross-section of a large mill

Wooden mills on the Grabia

Five details of a single drive and what we actually know about each of them.

Choose an epoch and a detail. A faded or dashed drawing indicates a gap in the sources, not proof that the device did not exist. The division into epochs is the page author’s ordering, not a dating from the sources.

Choosing an epoch and a detail requires JavaScript. All statuses are in the table below, and descriptions of the five details are in the section “Descriptions of the five details”. The division into epochs is the page author’s ordering, not a dating from the sources.

Drive epoch

Conceptual diagram of a cross-section of the large mill at Talar On the left, water impounded behind the embankment. Two working sluices carry water to the turbine chambers beneath the large mill and beneath the smaller groat mill. From the turbine of the large mill a shaft runs upward to a gearbox, a horizontal shaft and belts driving the grinding unit. Beside it stands the electric motor from 1971. On the right stands a separate groat-mill building with its own chamber. The drawing is a schematic without scale, not a plan or a photograph.
Conceptual diagram by the page author (V3), not a plan and not a photograph. Layout and proportions are simplified, with no scale. A question mark marks an element that the material does not describe. The epochs are ordered, not scaled: we do not know the date the wheel was replaced by the turbine (source: “before the First World War”).
  • solid: source record
  • dashed: partial record
  • pale, dotted: gap
  • barely visible: absent in this epoch
  • red frame: selected detail

Detail

Epoch 2 of 4: Francis turbine (with the turbine, before the 1971 motor)

1 · Embankment, weir and sluices

Source record Description: embankment, weir with an idle sluice and two working sluices with turbine chambers. The source does not date the construction.

Source record (quoted from V2)
“At Talar the embankment impounded the water, and the weir had an idle sluice and two working sluices with turbine chambers.”
Visibility from outside
The existence of the embankment and weir is confirmed by the description in V1; visibility from public roads and access are not described there. Do not walk onto the weir or behind fences without the owner’s consent.
General remarks on the technology (not a description of Talar)
The embankment raises the water level in the river. The difference in level before and after the structure (the head) is a store of energy: the greater the head and flow, the more power the water can deliver. The idle sluice carries surplus water past the machinery.
In the drawing
The shape of the embankment, the position of the sluices and the course of the channels are conceptual. The second working sluice (dashed) lies outside the plane of the section. The source gives no dimensions, head or flow.

Limits of the drawing

How to read the cross-section

Source record
An element or fact mentioned in the description taken over from V1 (NID card 2014, UMWŁ and LGD reports 2025). This page has not checked them against the originals.
Conceptual diagram
The layout, shapes and proportions in the drawing are the author’s own and simplified. There is no scale or dimensions.
General explanation
How the given technology works in general. It does not prove that this is how it was at Talar.
Division into epochs
The page author’s ordering, not a dating from the sources. A detail’s status in a given epoch is an inference from the dates in the material (e.g. 1971, May 1995), not a separate record about that epoch.

A surviving building does not prove a surviving or working mechanism. The absence of a record does not mean the absence of a device, and an unknown value is not zero.

Five details in four epochs: all statuses at once. With JavaScript enabled, the currently selected cell has a red frame.
Detail Water wheelbefore the turbine Francis turbinebefore the 1971 motor Electric motor1971 – May 1995 After millingfrom May 1995
1 · Embankment, weir and sluices Water wheelSource gapNo data on impoundment in the water-wheel era. We do not assume it looked the same. Francis turbineSource recordDescription: embankment, weir with an idle sluice and two working sluices with turbine chambers. The source does not date the construction. Electric motorPartial recordThe structure is described; whether it still powered the mill after 1971 is not known. After millingSource gapMilling ended in May 1995. Present condition of the embankment and weir: absent from the material.
2 · Francis turbine chamber Water wheelAbsent in this epochNot there yet: according to the description, the turbine replaced the water wheel. The type and position of the wheel are not known. Francis turbineSource recordA Francis turbine replaced the wheel before the First World War. The exact date is not given. Electric motorSource gapNo data on whether the turbine worked after the motor was installed in 1971. After millingPartial recordThe NID description of 2014 mentions the turbine. Its condition after 2014 and in the museum: to be checked.
3 · Shaft, gearbox and belts Water wheelSource gapNo data on how the drive was transmitted from the water wheel. Francis turbinePartial recordThe NID description (2014) mentions shafts and belt gearing but does not date them. The arrangement in the drawing is conceptual. Electric motorPartial recordIt is not known whether the motor drove the same transmission; the drawing shows a conceptual variant. After millingPartial recordNID (2014): belts incomplete. What survived after 2014 and what the museum shows: to be checked.
4 · Two buildings, two power units Water wheelSource gapNo data on the buildings from the wheel era; the age of the buildings is not given. Francis turbinePartial recordThe large mill and the groat mill had separate power units; the description does not say since when. Electric motorPartial recordThe description mentions two buildings and separate power units; their condition after 1971 is not described. No data on the drive of the groat mill. After millingPartial recordThe description mentions two buildings and separate power units; their condition after milling ended in May 1995 is not described. The museum opened in 2024 (UMWŁ 2025); in which building, it is not known.
5 · Electric motor Water wheelAbsent in this epochThe description speaks of the use of a motor from 1971; there is no record of an earlier motor. “Absent in this epoch” follows from the division into epochs adopted by the page author and is not proof of absence. Francis turbineAbsent in this epochThe description speaks of the use of a motor from 1971; there is no record of an earlier motor. “Absent in this epoch” follows from the division into epochs adopted by the page author and is not proof of absence. Electric motorSource recordFrom 1971 the large mill used an electric motor. Power and manner of connection: no data. After millingPartial recordMilling continued until May 1995. Whether the motor survived is not known.

Descriptions of the five details

1 · Embankment, weir and sluices

Source record (quoted from V2): “At Talar the embankment impounded the water, and the weir had an idle sluice and two working sluices with turbine chambers.”

Visibility from outside: The existence of the embankment and weir is confirmed by the description in V1; visibility from public roads and access are not described there. Do not walk onto the weir or behind fences without the owner’s consent.

General remarks on the technology (not a description of Talar): The embankment raises the water level in the river. The difference in level before and after the structure (the head) is a store of energy: the greater the head and flow, the more power the water can deliver. The idle sluice carries surplus water past the machinery.

In the drawing: The shape of the embankment, the position of the sluices and the course of the channels are conceptual. The second working sluice (dashed) lies outside the plane of the section. The source gives no dimensions, head or flow.

2 · Francis turbine chamber

Source record (quoted from V2): “Before the First World War the wheel was replaced by a Francis turbine.”

Visibility from outside: V2 described the turbine as underwater and invisible from outside; this detail does not follow from the quoted record and needs checking in the NID card. Whether the turbine has survived to this day also needs checking.

General remarks on the technology (not a description of Talar): The Francis turbine is a reaction turbine: water flows through the blades of a fully submerged runner and gives up its pressure and momentum to it. The rotating runner drives the shaft. Unlike a water wheel, it does not need a wheel on the outer wall.

In the drawing: The vertical arrangement of the shaft and the shape of the runner are assumptions of the diagram; V2 described a vertical shaft, which should be checked in the NID card.

3 · Shaft, gearbox and belts

Source record (quoted from V2): “The NID description of 2014 documents the turbine, shafts and belt gearing (...) but also incomplete belts.”

Visibility from outside: Interior equipment, not visible from outside. V2 stated that part of the equipment has been a museum exhibit since 2024 (per UMWŁ 2025); needs checking.

General remarks on the technology (not a description of Talar): A shaft transmits torque from the prime mover to the driven machines. An angle gear changes the direction of the axis of rotation, and pulleys with belts distribute the drive among several stations and allow the rotational speed to be changed by the choice of pulley diameters.

In the drawing: The arrangement “vertical shaft, gearbox, horizontal shaft, belts, grinding unit” is conceptual. The source lists the elements; it does not give their layout or the number of grinding units.

4 · Two buildings, two power units

Source record (quoted from V2): “The large mill and the smaller groat mill had separate power units (...) and milling ended in May 1995.”

Visibility from outside: Two separate wooden buildings. V1 makes no statement on visibility from public roads or on access.

General remarks on the technology (not a description of Talar): Separate power units mean separate drives: the large mill and the groat mill could work independently. A grain mill grinds grain into flour; a groat mill processes grain into groats.

In the drawing: The groat mill is drawn more sparsely: its chamber, runner and machines are dashed frames with a question mark, because the material does not describe its equipment.

5 · Electric motor

Source record (quoted from V2): “From 1971 the large mill used an electric motor, and milling ended in May 1995.”

Visibility from outside: Interior equipment, not visible from outside.

General remarks on the technology (not a description of Talar): An electric motor provides torque regardless of the water level in the river. The material does not settle why it was installed or whether the turbine worked alongside it (V2 suggested that the motor made milling independent of fluctuations in the river level; this is an interpretation with no record in the quoted description).

In the drawing: The motor and its coupling to the transmission are a conceptual variant (dashed line with a question mark). Power, type and manner of connection are not known.

Second mill · a different kind of knowledge

Jamborek: a building from 1945, a drive with no record

The wooden mill was built in 1945 and worked until the 1990s. Today the building houses a fish bar, and the mill ponds are used by anglers.

The width of the bar is proportional to the number of years (1945–2000). The boundary at the start of the 1990s marks the start of the interval “the 1990s”, not the date of an event: the year milling ended is not known. This is a sketch of proportions, not a document.

  • 1945 – early 1990s: mill built in 1945, according to the description it worked until the 1990s.
  • The 1990s: end of milling. The year is not given in the material, so it is shown as a ten-year interval, not a point.
  • Off the axis, up to 2025: the date of the change of function is unknown, so it is not on the axis. The description of 1 April 2025 (LGD “Dolina Grabi”) mentions a fish bar and ponds for anglers.
Drive: no data The source does not give the type of wheel or turbine, the gearing or the degree of preservation of the equipment. We do not ascribe the Talar mechanism to Jamborek. The absence of information does not mean the absence of equipment.

Third mill · a different kind of knowledge

Krzywda · Brzeski: an engine house that became a power station

millmill’s engine housesmall hydroelectric power station(when: no data)

The mill’s engine house at Krzywda was converted into a small hydroelectric power station.LGD “Dolina Grabi”, 1 April 2025 (via V1)

We do not knowWhen the conversion took place. There is no date in the material.

The “Dziedzictwo Łódzkiego” [Heritage of Łódzkie] card classifies the site as a hydroelectric power station of timber construction.Card with no update date (via V1)

We do not knowAs of which day the card describes the site.

Head, flow, turbine type and power: the sources do not give them at all.This is a gap, not a value equal to zero

We do not knowValues: — (no measurements in the material)

The sources do not confirm whether the power station generates electricity today.This cannot be inferred from the classification alone

We do not knowOperating state on the day of a visit. This page gives no such information.

In general, not about Krzywda: a small hydroelectric power station uses a head and flow similar to a mill’s, but a generator turns the rotation of the turbine into electricity instead of the turbine driving millstones.

Only at the end

Three mills, the same questions

The gaps are not evened out: a hatched cell means no data in the material, not the answer “no”.

What the material says about three mills (all data via V1, to be checked against the originals)
QuestionTalarJamborekKrzywda · Brzeski
When was the building constructed? TalarNo dataThe date is not given in the material. JamborekRecord1945. KrzywdaNo dataThe date is not given in the material.
What was the drive? TalarPartial recordWater wheel, then a Francis turbine (before the First World War); from 1971 the large mill used an electric motor (whether the turbine worked alongside: no data). JamborekNo dataType of drive and equipment not described. KrzywdaPartialThe mill’s engine house became a small hydroelectric power station. Turbine type and power unknown.
When did milling end? TalarRecordMay 1995. JamborekPartialThe 1990s; exact year unknown. KrzywdaNo dataNot in the material.
What is it used for according to the 2025 descriptions? TalarRecordJan Radgowski Museum, opened in 2024 (UMWŁ, 15 May 2025). JamborekRecordFish bar in the building, ponds for anglers (LGD, 1 April 2025). KrzywdaPartialSmall hydroelectric power station (LGD, 1 April 2025). Whether it generates electricity today: no confirmation.
Can it be seen from the road and can one enter? TalarNo dataV1 makes no statement on this. JamborekNo dataV1 makes no statement on this. KrzywdaNo dataV1 makes no statement on this.

Safety and terrain. Weirs, sluice gates and turbine chambers are hydraulic structures with a risk of undercutting and drowning. Entering properties and interiors requires the host’s consent. This page gives no opening hours, routes or accessibility, and nothing here is to be taken as permission to enter.

V2 → V3

What was removed from V2 and why

  • Field-feature checker (check boxes and an automatic summary).Replaced by a “Visibility from outside” row for each detail and a short safety note. A set of ticked features should not deliver a verdict on a site.
  • Notebook saved in the browser’s memory.Dropped: it was not needed to learn the topic, and it stored the user’s content. If you saved a note in V2, it remains in the browser’s memory under the key atlas-v2-3; this page neither reads nor changes it.
  • The “only one mill” filter in the comparator.Replaced by separate chapters with different rhythms and a simultaneous table at the end, because hiding two mills also hid the difference in gaps.
  • Embedded 2008 photograph and the markers on it.A photograph from an external server would not work offline, and the markers suggested the location of hidden equipment. A drawing takes the place of the photograph, and the photograph remains a link in the sources.
  • Kept from V2: the five nodes and their descriptions, the distinction between two buildings with separate power units, the visibility status, the dates 1971 / May 1995 / 2024 and references to the sources.
  • Added: an axis of drive epochs that changes the status of each detail. One of the V2 interpretations (the motor connected to the transmission, “making milling independent of fluctuations in the level of the river Grabia”) is now marked as an interpretation without a record.

Status of verification

Sources

This page takes over the descriptions from V1 and V2 of the Atlas. The originals were not reopened, so we do not regard any of the sources below as checked in this version. Addresses are given only where they were in the material.

  • Description of Talar, Jamborek and Krzywda in V1 of the Atlas Version V1 · Version V2 The basis of all the quotations. Needs comparing with the originals below.
  • National Heritage Institute (NID), record card of the mill complex in Talar, 8 September 2014 Author of the card: Agnieszka Lorenc-Karczewska. Basis of the description of the turbine, shafts, belt gearing and the 1971 motor. No address is given in the material. To be checked in the original.
  • Marshal’s Office of the Łódź Voivodeship (UMWŁ), “Weekend nad rzeką Grabią” [Weekend on the Grabia river], 15 May 2025 Basis of the information on the Jan Radgowski Museum in Talar (2024). No address is given in the material. To be checked in the original.
  • Local Action Group (LGD) “Dolina Grabi”, tourist portal, 1 April 2025 Basis of the dates and functions at Jamborek (1945, 1990s, bar, ponds) and of the information on the engine house at Krzywda. No address is given in the material. To be checked in the original.
  • “Dziedzictwo Łódzkiego” [Heritage of Łódzkie], object card Brzeski (Krzywda) Classification: hydroelectric power station, timber construction. Card with no update date. No address is given in the material. To be checked in the original.
  • Exterior photograph of Talar, 31 March 2008 (not embedded on this page) File on Wikimedia Commons · Author: Polimerek · CC BY-SA 4.0 Licence and file description taken from V2, not rechecked. The page links to the photograph but does not display it, so that it can work offline.
  • Cross-section drawing V3’s own conceptual diagram (model Claude Sonnet 5.5). It is not a source document or a verified map. Rights status to be determined by the editors.