摘要:
An underground fluid storage tank hold-down system for holding down an underground cylindrical fluid storage tank in a hole that has been excavated, the underground tank hold-down system comprising a multiplicity of paired hold-down straps having a first end and a second end. A multiplicity of paired deadmen anchors are adapted to be placed to either side of the tank when the tank is in the hole. The deadmen anchors each have anchor upstanding loops. A tank hold-down assembly is provided comprising a take-up coupler assembly having a pair of arched sections, having hooks thereon, including a first arched section and a second arched section and a threaded engagement assembly. The threaded engagement assembly includes a threaded member and a receiving member adapted to receive part of the threaded member. The straps engage the hooks and the anchor upstanding loops.
摘要:
A yoke type quick opening closure is provided. A torque bolt shares loads of the yoke with a drawbolt, and a separate safety bolt is provided. A common wrench interface feature is also provided.
摘要:
The instant disclosure relates to an apparatus and method for securing a watthour electrical meter to a socket meter box. A locking ring comprises a divided annular band fitted with tab members configured to accept a variety of ring fasteners. The tab members support a variety of ring fastener and fastener receiver assemblies, and have complementary mating surfaces that substantially mate around the head of an installed meter so that the locking ring is tamper-resistant. The ring fastener and fastener receiver have a number of complementary apertures disposed to receive either wire seals or other locking mechanisms.
摘要:
One aspect of the present invention includes a sealing ring having a split-ring annular band which includes a first and second end. A first tab is disposed at the first end, with the first tab extending away from the annular band. The first tab also includes a first threaded aperture. A second tab is disposed at the second end, with the second tab also extending away from the annular band The second tab also includes a second threaded aperture. Additionally, a thread of the first aperture is different from a thread of the second aperture. Further, the sealing ring includes a fastener threadedly engaged with the first and second apertures. Rotation of the fastener adjusts a radial dimension of the annular band.
摘要:
A sealing ring for an electric watthour meter apparatus has first and second housings mounted on opposed ends of an annular band. A fastener extends through a threaded aperture in an end wall of one housing into threaded engagement with an aperture in an end wall of the opposed housing to fixedly engage the ends of the sealing ring. A plurality of radially intersecting slots in one end of the fastener are alignable with apertures in one of a plurality of side walls of one of the housings for receiving a security device. Screwdriver receiving slots are formed in each of the first and second ends of the fasteners. An axial slot is formed in the second end of the fastener and alignable with apertures in the side walls of the other housing for receiving a security device. An enlarged head end on the fastener enables finger rotation of the fastener. The end walls have an elongated upper end forming a finger grip surface to facilitate movement of the first and second housings toward each other. Bendable mounting tabs extend from the first and second housings into slots in the annular band to fixedly mount the housings to the annular band. Alternately, a notched projection formed on a bottom wall of a cast housing engages an edge of a slot in the annular band and cooperates with a fastener extending through the bottom wall of the housing and the annular band to securely fix the housing to the annular band.
摘要:
A closure ring assembly for securing a cover in sealed relation over the open top of a storage drum container in which a split ring is closed by tightening a headed tie bolt between a pair of laterally spaced lugs fixed to the ring on opposite of the split therein; the bolt freely passing through one of the lugs and threadingly engaging the other so that upon tightening the bolt the ring is contracted with the one non-threaded lug having outwardly extending teeth for engaging the bolt head to lock the same in tightened position.
摘要:
A securing mechanism for an electricity metering device (30) including a housing (34) having a cavity, a cover (36) positioned on the housing (34) and enclosing said cavity, the cover (36) including hinge pins (120,122) for attaching the cover (36) to the corresponding hinge slots (80,82) on the housing (34) and a sealing screw (126) connected to the cover (36) for releasably securing the cover (36) to the housing (34). The sealing screw (126) is threaded through a hole (124) in the cover (36), and includes an opening (158), and the cover further includes a lug (162) defining a second opening (164) positioned for cooperation and registration with the first opening (158) when the sealing screw (126) has secured the cover (36) to the housing (34).
摘要:
An apparatus for preventing the unlocking of a deadbolt lock with a key in which clamping arms are used to grip a deadbolt knob or key on the opposite side of the door and are held in place by a retaining pin which is inserted into a cavity in the door. The use of various clamping materials and types provides a degree of versatility to the apparatus.
摘要:
A tamper-resistant fastener for use on utility meter collars. The fastener is used with standard utility meter equipment and prevents significant rotation of a collar takeup ring screw in either the threading or unthreading direction. Once one form of the tamper-resistant fastener is in place, the meter collar can only be removed by authorized personnel. In another form of the fastener, removal is apparent.
摘要:
A manhole cover lock is provided employing two units diametrically situated and extending through openings in the manhole cover. The units engage a projection of the manhole cover housing to prevent the removal of the manhole cover when the units are in position. The units comprise a cylindrical body having a yoke at one end, a locking plate pivotally mounted in the yoke, with a flanged face opposite the yoke, and having a central recess. Extending through the body is an eccentric bore, in which a rod is housed, cooperating with said locking plate to provide a dog lock. A threaded bolt having a keyed head is threaded into a threaded axial bore in said body to prevent axial movement of said rod. An alternate embodiment of the threaded bolt includes modification of the head of the threaded bolt to allow the head to receive a special wrench for firmly tightening the threaded bolt thereby additionally securing the manhole lock in position.