Apparatus for straight-line shearing of molten glass gobs
AssigneeBH-F (Engineering) Limited
InventorsPeter Vilk, Alan Stephens
Life of this patent
Estimating the term…
Abstract
In apparatus for the straight-line shearing of molten glass gobs, first and second carriage members have mounted thereon one or more opposing pairs of shear blades which are caused reciprocally to move towards each other and then away from each other along a substantially straight line between an open position and a closed cutting position. The carriage members are slidably mounted on wayrods and are connected to diametrically opposed crank arms extending from a rotatably driven shaft. As the shaft is caused to rotate, the carriage members reciprocally slide on the wayrods between the open and closed positions.
Claims9
Apparatus for straight-line shearing of molten glass gobs wherein first and second carriage members having mounted thereon one or more opposing pairs of shear blades are caused reciprocally to move towards each other and then away from each other along a substantially straight line between an open position and a closed, cutting position, which apparatus comprises:
- first and second carriage members,
- one or more opposing pairs of shear blades mounted on said carriage members,
- a rotatably driven shaft,
- means for rotatably driving said shaft through a cycle having a complete 360.degree. revolution, and,
- a crank on said shaft and pivotally connected to each of said carriage members;
- each crank during one complete revolution of the shaft, being driven through a complete 360.degree. revolution whereby the carriage members reciprocally move from an open to a closed position and back to the open position
- wherein said crank comprises diametrically opposed crank arms, a first crank arm being pivotally connected by a rod to the first carriage member and the second crank arm being pivotally connected by a rod to the second carriage member.
Apparatus for straight-line shearing of molten glass gobs wherein first and second carriage members having mounted thereon one or more opposing pairs of shear blades are caused reciprocally to move towards each other and then away from each other along a substantially straight line between an open position and a closed, cutting position, which apparatus comprises:
- first and second carriage members,
- one or more opposing pairs of shear blades mounted on said carriage members,
- a rotatably driven shaft having diametrically opposed cranks extending from the axis thereof, a first crank being pivotally connected to a link to the first carriage member and a second crank being pivotally connected by a link to the second carriage member, and
- means for rotatably driving said shaft through a cycle having a complete 360.degree. revolution, whereby during one complete revolution of the shaft each crank is driven through a complete 360.degree. revolution and the carriage members reciprocally move from an open to a closed position and back to the open position.
Apparatus for straight-line shearing of molten glass gobs wherein first and second carriage members having mounted thereon one or more opposing pairs of shear blades are caused reciprocally to move towards each other and then away from each other along a substantially straight line between an open position and a closed, cutting position, which apparatus comprises:
- first and second carriage members,
- one or more opposing pairs of shear blades mounted on said carriage members,
- at least one wayrod extending on each side of the shear blades substantially parallel to the line of movement of the carriage members, the carriage members extending therebetween and being slidably mounted thereon,
- a rotatably driven shaft,
- diametrically opposed crank arms extending from the rotatably driven shaft,
- a first rod pivotally connecting a first crank arm to the said first carriage member,
- a second rod pivotally connecting the second crank arm to the second carriage member, and
- means for rotatably driving said shaft through a cycle having a complete 360.degree. revolution, whereby during one complete revolution of the shaft each crank is driven through a complete 360.degree. revolution and the carriage members reciprocally move from an open to a closed position and back to the open position.
Dependencies are inferred from the claim text.