HYDRAULIC MONITOR INCORPORATING IMPROVED POWER-OPERATED AND MANUALLY OPERATED SWIVEL JOINT

• US 3,575,351 A
• Filed: 04/09/1970
• Issued: 04/20/1971
• Est. Priority Date: 04/09/1970
• Status: Expired due to Term

• Current Assignee: N/A
• Original Assignee: N/A
• Time in Patent Office: 376 Days
• US Class Current: 239/227
• CPC Class Codes: B05B 15/652 whereby the jet can be oriented
• CPC Class Codes: B05B 3/02 with rotating elements electric spraying discharge apparatus characterised by having rotary outlet or deflecting elements B05B5/04
• CPC Class Codes: Y10T 74/19828 Worm

Abstract

The low-friction swivel joint in the hydraulic monitor has incorporated therein a worm wheel, the latter being rotated by a worm driven by a fluid motor. A second and corresponding swivel joint is also provided, being driven by fluid which is passed through the first-mentioned joint in order that there will be no twisting of pipes or conduits. The second joint effects rotation of a portion of the monitor about a horizontal axis, whereas the first-mentioned joint effects rotation of the monitor about a vertical axis.

Claims

1. A hydraulic monitor, which comprises:

a fixedly mounted pedestal or base having a generally vertical bearing element at the upper end thereof, a vertical journal element rotatably mounted coaxially in said bearing element, first and second roller-bearing assemblies provided between said bearing element and said journal element to minimize friction therebetween, an elbow connected to said journal element and having a generally horizontal oriented bearing element at the end thereof remote from said vertical bearing element and vertical journal element, a horizontal journal element rotatably mounted coaxially in said horizontal bearing element, third and fourth roller-bearing assemblies provided between said horizontal bearing element and said horizontal journal element to minimize friction therebetween, nozzle means connected to said horizontal journal element and adapted to receive water therefrom, from said elbow and from said pedestal or base, worm wheels provided fixedly and exteriorly on said vertical and horizontal journal elements coaxially within the associated bearing elements, worms meshed with said respective worm wheels, means to mount said worms rotatably on the respective bearing elements, fluid motors mounted on the respective bearing elements and connected to said worms to rotate the same, fluid-supply means connected to the fluid motor associated with said vertical bearing element and vertical journal element, and second fluid-supply means for the fluid motor associated with said horizontal bearing element and said horizontal journal element, said second fluid-supply means including transfer means incorporated between said vertical bearing element and vertical journal element.

2. The invention as claimed in claim 1, in which first and second sets of elastomeric transfer rings are provided between said vertical bearing element and said vertical journal element, in which the interior surface of said vertical bearing element is provided with an annular groove between the rings in each set thereof, in which fluid supply and fluid drainage conduits are connected through ports to said annular grooves, and in which passage means are provided in said vertical journal element to conduct fluid from said annular grooves to conduits or lines leading to said hydraulic motor for said horizontal bearing element and journal element.

3. A hydraulic monitor, which comprises:

a hollow pedestal or base mounted in generally vertical relationship, at least a portion of said pedestal being interiorly generally cylindrical, said generally cylindrical portion including a bearing section, a vertical journal element rotatably mounted in said generally cylindrical portion, said vertical journal element being hollow, first and second roller-bearing assemblies provided between said bearing section and said vertical journal element to minimize friction therebetween, said roller-bearing assemblies being spaced apart relative to each other, a hollow elbow connected to said vertical journal element and having a generally horizontal oriented bearing element at the end thereof remote from said vertical journal element, a horizontal journal element rotatably mounted coaxially in said horizontal bearing element, said horizontal journal element being hollow, roller bearing means provided between said horizontal bearing element and said horizontal journal element to minimize friction therebetween, nozzle means connected to said horizontal journal element and adapted to receive water therefrom, from said elbow, and from said vertical journal element, a worm wheel provided fixedly and exteriorly on said vertical journal element and coaxially within said bearing section of said generally cylindrical portion, a worm meshed with said worm wheel, means to mount said worm rotatably on said bearing section of said generally cylindrical portion, a rotary-type fluid motor mounted adjacent said bearing section of said generally cylindrical portion and connected to said worm to rotate the same through any number of revolutions in either direction, a fluid-motor means associated with said horizontal journal element to rotate the same in said horizontal bearing element, first fluid supply means connected to said rotary-type fluid motor to operate the same in order to effect driving of said worm through any number of revolutions, and second fluid-supply means connected to said fluid-motor means associated with said horizontal journal element, said second fluid-supply means including fluid-transfer means incorporated between said generally cylindrical portion and said vertical journal element.

4. The invention as claimed in claim 3, in which said second fluid-supply means comprises first and second pairs of fluid-transfer sealing rings provided between said generally cylindrical portion and said vertical journal element, an annular groove provided between the fluid-transfer rings in each pair thereof, fluid-supply and fluid-drainage conduits connected to said respective annular grooves, and passage means provided in said vertical journal element and communicating with said respective annular grooves to conduct fluid to and from said fluid-motor means associated with said horizontal journal element.

5. The invention as claimed in claim 4, in which said worm wheel is provided between said first and second roller-bearing assemblies.