Ðèñ. 2. Âèíòîâîé äîìêðàò íà ñàëàçêàõ: 1 — êîðïóñ; 2 — ãðóçîíåñóùèé âèíò; 3 — íàïðàâëÿþùàÿ ðåéêà; 4 — ðóêîÿòêà; 5 — ÷àøêà äëÿ ãðóçà; 6 — ñàëàçêè; 7 — ãîðèçîíòàëüíûé âèíò.