摘要:
The present invention relates to a machine (28) for accurately cutting a weg (21) of transparent material supporting or enveloping one or more opaque documents (48), said machine comprising cutting means (30) which are arranged for pivotal and lateral movement and being capable of automatic positioning for accurately cutting a well-defined portion of said strip so as to provide series of individual documents of predetermined sizes or dimensions. The machine of the invention is provided with means for detecting the arrival of a said opaque document at the cutting zone, means for arresting the movement of said web within said machine, means for determining the relative position of said document in said web with respect to said cutting means and means for bringing said cutting means into a predetermined position with respect to said document.
摘要:
A process and apparatus for producing a high-quality polycrystalline semiconductor ingot with excellent crystallographic properties are disclosed. The interior of an airtight vessel (1) is kept in an inert atmosphere for semiconductors. A raw semiconductor material (17) is charged in a crucible (9), and the raw semiconductor material (17) is heated by an induction heating coil (5) so as to be melted. Then the bottom of the crucible is deprived of heat for causing the raw semiconductor material (17) to solidify, thereby producing a polycrystalline semiconductor. The semiconductor crystal grows in one direction from the bottom to the top of the crucible while the heat emission is changed in accordance with a predetermined relationship for keeping the solidification rate of the raw semiconductor material (17) constant.
摘要:
Die Erfindung betrifft eine Vorrichtung zum Beschneiden von Buchblöcken (1, 1') (1, 1), wobei die Vorrichtung wenigstens ein erstes Seitenmesser (21) zur Durchführung eines ersten Seitenkantenbeschnitts aufweist, wobei das erste Seitenmesser (21) an einem beweglich gelagerten ersten Seitenmesserhalter (31) angebracht ist und ein zweites Seitenmesser (22) zur Durchführung eines zweiten Seitenkantenbeschnitts aufweist, wobei das zweite Seitenmesser (22) an einem beweglich gelagerten zweiten Seitenmesserhalter (32) angebracht ist, wobei die drei Messerhalter mechanisch voneinander unabhängige Einzelantriebe aufweisen.
摘要:
Die Erfindung betrifft eine Vorrichtung zum Beschneiden von Buchblöcken (1, 1') (1, 1), wobei die Vorrichtung wenigstens ein erstes Seitenmesser (21) zur Durchführung eines ersten Seitenkantenbeschnitts aufweist, wobei das erste Seitenmesser (21) an einem beweglich gelagerten ersten Seitenmesserhalter (31) angebracht ist und ein zweites Seitenmesser (22) zur Durchführung eines zweiten Seitenkantenbeschnitts aufweist, wobei das zweite Seitenmesser (22) an einem beweglich gelagerten zweiten Seitenmesserhalter (32) angebracht ist, wobei die drei Messerhalter mechanisch voneinander unabhängige Einzelantriebe aufweisen.
摘要:
Apparatus for longitudinally and transversely trimming articles (CII), C(II)) moldingly formed on plastic sheet (b) which is brought by means of a pair of clamp chains (10) between longitudinally movable pointed tip knives (51) and longitudinally extended holder members (61) as well as transversely movable pointed tip knives (31) and transversely extended holder member (41) respectively held in retracted position and then trimmed by moving said knives and holder members to forwarded position and by moving said knives. Said sheet (b) is formed in advance with transversely and longitudinally extended ridges (XR, YR) so that said moving knives cannot sever the sheet at said ridges, whereby trimmed articles fall down by gravity and waste portion kept in one piece is brought out by said clamp chains to be collected. In order to attain correct trimming, said sheet (b) is formed in advance further with additional transversely and longitudinally extended ridges (XR, XR 2 , YR, YR', YR") respectively beside and in parallel with lines to be severed so that each rib (310, 510) mounted beside the concerned knife (31, 51) and extended in parallel with the knife moving direction fits in the concerned additional ridge of the sheet from the reverse side.
摘要:
This invention pertains to a unique method and apparatus (100) for cutting an intermediate article of manufacture, the intermediate article of manufacture being a cord reinforced elastomeric laminate (10A) . More specifically, the invention relates to methods and apparatus for cutting a cord reinforced elastomeric laminate, the laminate (10A) , when cut to length, becoming a carcass (10) for a pneumatic tire. The apparatus (100) of the present invention can cut a cord reinforced ply (20) at angles creating large substantially flat planar splice surfaces without significant deformation or precuring of the unvulcanized elastomeric material. The cut surfaces can be cut at angles greater than 60° relative to a normal plane (NP) perpendicular to the ply and parallel to the cords, preferably being cut at angles of about 80°. This can be done precisely and quickly. The cutting means (102) provides improvements to these splice surfaces.
摘要:
This invention pertains to a unique method and apparatus (100) for cutting an intermediate article of manufacture, the intermediate article of manufacture being a cord reinforced elastomeric laminate (10A) . More specifically, the invention relates to methods and apparatus for cutting a cord reinforced elastomeric laminate, the laminate (10A) , when cut to length, becoming a carcass (10) for a pneumatic tire. The apparatus (100) of the present invention can cut a cord reinforced ply (20) at angles creating large substantially flat planar splice surfaces without significant deformation or precuring of the unvulcanized elastomeric material. The cut surfaces can be cut at angles greater than 60° relative to a normal plane (NP) perpendicular to the ply and parallel to the cords, preferably being cut at angles of about 80°. This can be done precisely and quickly. The cutting means (102) provides improvements to these splice surfaces.