Wyniki wyszukiwania - BazTech

1

Woman’s Costume in the Territories of Poland during the Roman Period. Reconstruction Based on Finds from Nowy Łowicz in Pomerania

Cybulska Maria

Fibres & Textiles in Eastern Europe

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2020

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Vol. 28, no. 5 (143)

124--129

EN

During archaeological excavations in Nowy Łowicz, Pomerania (Poland), in 1991, burial mound 55 with a woman’s grave was examined, in which numerous fragments of textiles, costume accessories and jewellery had been preserved. The work presents the results of structural and technological analysis of fragments preserved. Based on these, as well as on preserved iconography and analogous archaeological finds, an attempt was made to reconstruct the woman’s clothing from the period to which the grave is dated, i.e. phase B2/C1 of the Roman period. The reconstruction was made by means of computer graphics and includes three elements of clothing: a shirt, dress and short coat, made by identified techniques and partly taking into account the original colours. The work done is particularly important due to the fact that this is the first attempt to reconstruct a woman’s complete clothing worn on the territory of what is now Poland in the above-mentioned period.

PL

Podczas wykopalisk archeologicznych w Nowym Łowiczu na Pomorzu w 1991 roku zbadano kurhan 55 z grobem kobiecym, w którym zachowały się liczne fragmenty tkanin, ozdób i biżuterii. W pracy przedstawiono wyniki analizy strukturalnej i technologicznej zachowanych fragmentów tkanin. Na ich podstawie, a także na podstawie ikonografii i analogicznych znalezisk archeologicznych podjęto próbę zrekonstruowania ubioru kobiecego z okresu, w którym datowany jest grób, tj. fazy B2/C1 okresu rzymskiego. Rekonstrukcja została wykonana za pomocą grafiki komputerowej i obejmuje trzy elementy ubioru: koszulę, suknię i krótki płaszcz, wykonane w zidentyfikowanych technikach i częściowo z uwzględnieniem oryginalnych kolorów. Wykonana praca jest szczególnie ważna, ponieważ była to pierwsza próba rekonstrukcji kompletnego ubioru kobiecego noszonego w okresie rzymskim na terytorium dzisiejszej Polski.

2

Mathematical Modelling of the Heald Shaft

Bílek M., Kovář S., Skřivánek J.

Autex Research Journal

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2016

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Vol. 16, no. 4

175--181

EN

The manufacturers of weaving equipment recently endeavour to minimise the necessary designing plays in the weaving loom mechanisms. One of the mechanisms most exposed to stress is the shedding motion that defines the held-shaft stroke. Its end part is the heald shaft. The heald shaft constitutes a problematic assembly of the shedding motion. The design employed presently is characterised by dynamic impact loading caused by designing play in the suspension of healds into the heald shaft. During weaving cycle, the healds fly between the main beams of the heald shaft, producing a considerable force pulse. This paper is concerned with the description of dynamic behaviour of the existing design on the basis of mathematical modelling and verification of obtained results by means of experimental analysis.

3

Mathematical Model of the Heald with Damping Element

Bílek M., Skřivánek J.

Autex Research Journal

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2015

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Vol. 15, no. 1

1--7

EN

This study focuses on the analysis of the existing design solution of shedding mechanism. It is characterised by a heald attachment into the heald shaft with a necessary design allowance. The preparation of a mathematical model for the new concept of the heald attaching to the heald shaft frame is explained in this study. A damping element for dissipating the energy created during the heald impact on the carrying wire of the heald shaft is currently used for the high-speed weaving loom. This system makes use of a damping element, fitted in the profile of the rod at an optimum distance from heald eye. This element provides for reduction of the heald velocity before its drop upon the supporting wire because the opposite section of the heald is pressed into the rubber element. The calculated results of the new concept of the heald attaching to the heald shaft frame are compared with the existing solution without application of the damping element.

4

Mathematical modeling of the system shedding motion – heald – warp

Bílek M, Skřivánek J.

Autex Research Journal

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2013

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Vol. 13, no. 2

44--50

EN

The paper is concerned with the description of a mathematical model meant for an analysis of the movement of healds during the weaving cycle. The referred model consists of a mathematical description of shedding motion, coupled with the solution of the heald model of a weaving loom. Principal designing elements of this component have been considered while devising this model. The affected calculations show a high value of acceleration of the heald produced after its drop upon the supporting wire. The referred model allows for analyzing a considerable part of designs of heald shaft that are employed in weaving looms nowadays.

5

Pneumatic Loom for Leno Weaves with Rotary Mechanism Forming the Shed and Beating-up the Weft

Kopias K., Kossowski Z.

Fibres & Textiles in Eastern Europe

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2006

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Vol. 14, no. 1 (55)

76--78

EN

We present herein a genuinely new concept for a rotary mechanism for pneumatic looms, which forms the shed and beating-up the weft, together with an electromagnetic device to drive the guide needle bar. The mechanism and device which we designed and constructed were tested using a model loom. The tests carried out indicated that the use of these machine parts increases the efficiency of looms which manufacture nets with leno weaves, significantly reduces noise generation by the loom, allows for weft inserting with the use of an air stream, and improves the energy balance of the loom.

PL

Przedstawiono nową, oryginalną koncepcję obrotowego mechanizmu do formowania przesmyku i dobijania wątku na krośnie pneumatycznym, jak również urządzenie magnetoelektryczne do napędu grzebienia igielnicowego. Zbudowane urządzenia przetestowano na modelu funkcjonalnym krosna. Badania wykazały, iż zastosowanie tych urządzeń pozwala na: zwiększenie wydajności krosien przy produkcji siatek o splotach gazejskich, znaczne zmniejszenie hałasu, wprowadzanie wątku przy pomocy strugi powietrza oraz poprawę bilansu energetycznego krosna.

6

Magnetoelectric Driving Device for Displacements of a Guide Needle Bar in a Weaving Loom

Kossowski Z., Kopias K.

Fibres & Textiles in Eastern Europe

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2006

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Vol. 14, no. 2 (56)

76--78

EN

The design and the working principles of a magnetoelectric actuator are presented. The designing principle is described, and the technical conditions required by an actuator are emphasised. A magnetoelectric actuator was designed and constructed on this basis, with the aim of driving the guide needle bar of a weaving loom equipped with rotating sinkers which form the shed and beat up the weft. The device described was tested under a loom’s working conditions, and we concluded that it fulfils the demands stated.

PL

Przedstawiono budowę i zasadę działania siłownika magnetoelektrycznego. Przedstawiono zasady jego projektowania, uwzględniające wymagania techniczne, które winien spełniać siłownik. Zaprojektowano i zbudowano siłownik magnetoelektryczny do napędu grzebienia igielnicowego krosna z wirującymi płaszczkami formującymi przesmyk i dobijającymi wątek. Urządzenie zostało przetestowane w trakcie pracy krosna, spełniając postawione mu wymogi.