초록 ▼

A manhole access for sewers. More particularly, the present invention relates to a manhole that is adjustable in height and/or pitch to allow the top of the manhole top section to conform to the pitch of a surrounding surface, such as a road. Specifically, there is a cover, configured to cover acces

A manhole access for sewers. More particularly, the present invention relates to a manhole that is adjustable in height and/or pitch to allow the top of the manhole top section to conform to the pitch of a surrounding surface, such as a road. Specifically, there is a cover, configured to cover access to the manhole extension, and an adjuster, coupled between the cover and the manhole extension, designed to be positioned in multiple positioned that form an angle of the cover relative to a top edge of the manhole extension. The adjuster has a cover coupler, positioned on a top side of thereof, designed to releasably hold the cover; and manhole extension coupler, positioned on a bottom edge thereof, designed to hold the adjuster proximate to the top edge of the manhole extension. The adjuster further includes a first position that provides for zero degrees of slope between the manhole cover and the top edge of the manhole extension; and a second position that provides for up to and including twenty degrees of slope between the manhole cover and the top edge of the manhole extension.

대표청구항 ▼

A manhole access for sewers. More particularly, the present invention relates to a manhole that is adjustable in height and/or pitch to allow the top of the manhole top section to conform to the pitch of a surrounding surface, such as a road. Specifically, there is a cover, configured to cover acces

A manhole access for sewers. More particularly, the present invention relates to a manhole that is adjustable in height and/or pitch to allow the top of the manhole top section to conform to the pitch of a surrounding surface, such as a road. Specifically, there is a cover, configured to cover access to the manhole extension, and an adjuster, coupled between the cover and the manhole extension, designed to be positioned in multiple positioned that form an angle of the cover relative to a top edge of the manhole extension. The adjuster has a cover coupler, positioned on a top side of thereof, designed to releasably hold the cover; and manhole extension coupler, positioned on a bottom edge thereof, designed to hold the adjuster proximate to the top edge of the manhole extension. The adjuster further includes a first position that provides for zero degrees of slope between the manhole cover and the top edge of the manhole extension; and a second position that provides for up to and including twenty degrees of slope between the manhole cover and the top edge of the manhole extension. s within said reservoir roller connected to a pump through a manifold for distributing ink to respective segments of said roller corresponding to segments of said print ribbon to be re-inked. 9. The impact printer of claim 8, wherein said channels are divided and formed within an internal portion of said reservoir roller, said roller being formed of a foam material having at least two segments divided from each other for receiving ink from a different channel so that ink can be imparted to said segments in varying amounts. 10. A line printer comprising: a plurality of print hammers having printing tips mounted on a hammerbank; a permanent magnet for retaining said hammers; a coil in associated relationship with each hammer for overcoming the permanent magnetic retention; a print ribbon which traverses across said printing tips between two spools and is impacted by the printing tips to provide printing on a print media; a porous reservoir roller having two or more segments which can receive ink in different quantities; two or more channels within said reservoir roller, each connected to a respective segment of said reservoir roller; an ink transfer roller for transferring ink to said print ribbon from said reservoir roller; a sensor having two or more respective sensing portions for determining an amount of ink on said ribbon at two or more respective segments of said ribbon; one or more pumps for pumping ink to said channels at a rate consistent with the ink requirements of a segment of said print ribbon; and a controller for causing said one or more pumps to pump ink in response to the amount of ink sensed by said sensor to a respective segment of said roller corresponding to a segment of said ribbon. 11. The line printer of claim 10, further comprising a roller biased against said transfer roller for forcing said ribbon against said transfer roller. 12. The line printer of claim 10, wherein said one or more pumps are driven by a solenoid. 13. The line printer of claim 12, wherein said one or more pumps has a diaphragm that is driven by said solenoid and actuated by an electrical pulse to said solenoid, and further comprising an inlet and outlet valve connected to a chamber overlying said diaphragm. 14. The line printer of claim 10, wherein said channels in said reservoir roller are formed with at least two cylindrical spools having a manifold portion overlying said spools for feeding ink into said channels. 15. A re-inker for a printer comprising: an ink-retaining reservoir roller segmented into at least two segments for supplying ink to two or more respective segments of an ink ribbon; two or more channels interiorly of said reservoir roller for flowing ink to respective segments of said reservoir roller; a pump coupled to each of said channels and an ink supply; a sensor for sensing a quantity of ink on respective segments of said print ribbon; and an electrical drive for causing said pump to pump ink to a channel in response to said sensor for re-inking a segment of said ink ribbon. 16. The re-inker of claim 15, further comprising: an ink transfer roller for transferring ink from said reservoir roller to said print ribbon; a pressure roller spring biased against said transfer roller for pressing said ribbon against said transfer roller; and at least one de-inking roller for removing ink from said print ribbon. 17. The re-inker of claim 15, wherein said ink supply is a multi-viscosity ink. 18. The re-inker of claim 15, wherein said pump has a diaphragm which is solenoid driven and a chamber in fluid connected relationship to said diaphragm with two one way valves connected to said chamber for ink flow in one direction. 19. The re-inker of claim 15, wherein said sensor comprises a ribbon edge sensor. 20. The re-inker of claim 15, further comprising a sensor having a set point control as to the pumping of ink dependent upon the reflective characteristics of said print ribbon. 21. The re-inker of