Berkas:Gin_gang_007.jpg
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Ukuran asli (2.736 × 3.648 piksel, ukuran berkas: 2,25 MB, tipe MIME: image/jpeg)
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DeskripsiGin gang 007.jpg |
English: Showing internal roof structure in gin gang at Beamish Museum, County Durham, England.
A gin gang is a structure built to enclose a horse mill, usually circular but sometimes square or octagonal, attached to a threshing barn. Most of the wood used here would have been seasoned oak originally, but much has been replaced during preservation, including apparently the main oak spindle-shaft of the mill, which appears to be unseasoned and cracked.
This renovated internal roof structure is based on a traditional space frame truss with its primary plane in line with the tie beam (or joist), and with members fixed between king post and rafters to support the semi-octagonal plan of the roof. There is one main transverse oak tie beam on which the king post of the main truss is based. The king post is in tension to prevent sagging of the horizontal tie beam, so neither the king post nor the tie beam are resting on the mill below. The roof construction is not structurally dependent on the horse mill, or connected with it. The top of the mill's main vertical spindle shaft and the end of the main power shaft are pivoted at the centre of their own separate tie beam which is below and parallel with the main roof tie beam, and set in the gin gang's side walls at either end. The mill's tie beam has to be stabilised with two massive oak beams which run, either side of the power shaft, from tie beam to barn wall. A large and basic engine like this can create great stresses from the torque engendered.
This is based on a central, vertical, heavy, 10ft high, oak spindle shaft, with its base pivoting on an iron framework set in the middle of the gin gang floor. Its top end pivots under the mill's own tie beam (if it didn't, it would fall over) but the tie beam cannot rest on the pivot, or the mill would not turn. The spindle shaft supports around its top end the main, 6ft-diameter, horizontal gear wheel, with the teeth on the top surface. The main power shaft, a massive oak pole, is girthed at one end by a secondary gear wheel which lies on the main gear wheel, thus turning the main power shaft on its long axis. The main power shaft runs from the main gear wheel through a hole in the barn wall and in the barn it powers the threshing machine and other machines via further cogwheels and belts. Such a machine would create great torque stresses, and if it were ever to work again it would require re-engineering to ensure smooth and safe running, and beams which are seasoned and not cracked. NB: This mill was rescued from Berwick Hills Low Farm, Northumberland, and has had some repairs since then.
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Tanggal | |
Sumber | Karya sendiri |
Pembuat | Linda Spashett, Storye book |
Izin (Menggunakan kembali berkas ini) |
Saya, pemilik hak cipta dari karya ini, dengan ini menerbitkan berkas ini di bawah ketentuan berikut: Berkas ini berlisensi di bawah lisensi Creative Commons Atribusi 3.0 Tanpa Adaptasi
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Versi lainnya |
Other images of this gin gang and horse mill are in: Category:Gin gang Category:Horse mills Category:Beamish Museum |
Items portrayed in this file
menggambarkan
17 April 2010
exposure time Inggris
0.06756756756756756756 detik
f-number Inggris
2,7
focal length Inggris
7,5 milimeter
ISO speed Inggris
400
image/jpeg
Riwayat berkas
Klik pada tanggal/waktu untuk melihat berkas ini pada saat tersebut.
Tanggal/Waktu | Miniatur | Dimensi | Pengguna | Komentar | |
---|---|---|---|---|---|
terkini | 19 April 2010 15.41 | 2.736 × 3.648 (2,25 MB) | Storye book | {{Information |Description={{en|1=Showing internal roof structure in gin gang at Beamish Museum, County Durham, England. ;Gin gang A gin gang is a structure built to enclose a horse mill, usually circular but sometimes square or octagonal, attached to a |
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Metadata
Berkas ini mengandung informasi tambahan yang mungkin ditambahkan oleh kamera digital atau pemindai yang digunakan untuk membuat atau mendigitalisasi berkas. Jika berkas ini telah mengalami modifikasi, rincian yang ada mungkin tidak secara penuh merefleksikan informasi dari gambar yang sudah dimodifikasi ini.
Produsen kamera | NIKON |
---|---|
Model kamera | COOLPIX P5000 |
Waktu pajanan | 5/74 detik (0,067567567567568) |
Nilai F | f/2,7 |
Rating kecepatan ISO | 400 |
Tanggal dan waktu pembuatan data | 17 April 2010 14.39 |
Jarak fokus lensa | 7,5 mm |
Orientasi | Normal |
Resolusi horizontal | 300 dpi |
Resolusi vertikal | 300 dpi |
Perangkat lunak | COOLPIX P5000V1.0 |
Tanggal dan waktu perubahan berkas | 17 April 2010 21.46 |
Penempatan Y dan C | Atas (co-sited) |
Program pajanan | Program normal |
Versi Exif | 2.2 |
Tanggal dan waktu digitalisasi | 17 April 2010 21.46 |
Mode kompresi gambar | 1,8851954447522 |
Bias pajanan | 0 |
Bukaan tanah maksimum | 2,9 APEX (f/2,73) |
Mode pengukuran | Pola |
Sumber cahaya | Tidak diketahui |
Kilas | Lampu kilat tidak menyala, lampu kilat dimatikan |
Ruang warna | sRGB |
Mode pajanan | Pajanan otomatis |
Keseimbangan putih | Keseimbangan putih otomatis |
Tipe penangkapan | Standar |
Ketajaman | Normal |