A rotatable gate floor entrance has one or two gates which are pivotably attached at a lower corner to a post structure connected to a floor. The gate or gates rotate in a vertical plane from an open to a closed position. When a single gate is used, a gate lock connects the gate to a second vertical post. When two gates are used, the first gate is rotatably connected at a lower corner to a first post support and the second gate is attached in similar fashion to a second vertical post. Both the f...

The gate comprises a casing supporting a barrier extendable and retractable transversely to the direction of the passage passing through the gate. The barrier has two telescopic elements which, in the extended position, extend across the passage; in the retracted position, one of these elements fits inside the other and they both fit inside the casing, whose width need then be only slightly greater than the width of the retracted barrier. The gate is actuated by bellcrank levers driven in one di...

A gate for closing a passage comprising a support post and a gate hingedly mounted on the post, said gate comprising a horizontal girder supporting spaced vertically extending spikes, the means extending longitudinally through the girder, passing through all of the spikes, secured to opposite ends of the girder and subsequently tensioned thereby exerting sufficient compression in the girder to resist bending thereof and normally preventing the spikes from engaging the ground surface.

Gate is a wax structure for forming part of a wax master in investment casting of a dental prosthesis. The gate has a square feeder with a circular disc on each end. The square feeder reduces the cracking stresses between adjacent feeders to reduce unwanted fins, and the square shape aids in final cutoff of the cast prosthetic. In the wax master, one of the discs is secured to the prosthetic form and the other disc to the conventional reservoir bar. The disc shape aids in filleting to the form a...

A gate or panel including a frame composed of channel members each of which has opposed side walls bent inwardly to define a slot for receiving edges of the chain link fabric which is within the frame. An end link of the fabric, which is in the slot in the adjacent side member, is turned to prevent withdrawal thus securing the fabric to the frame. Each of the frame members has a partition wall extending between the opposed walls so as to stiffen the gate frame. Depending upon the space between t...

A gate has a frame, a gate door, a latch and a latch seat. The gate door is pivotally mounted in the frame. The latch is attached to a top corner of the gate door. The latch seat is attached to a top inner corner of the frame. The latch seat and the latch engage each other to latch the gate door to the frame. Unlatching the gate door requires multiple actions so children or pets are not able to open the gate. The safety of children is assured, and pets will not ruin objects isolated by the gate.

Gate, particularly for entrance ways, roads, or the like, with a barrier which can be pivoted in such a way that the tip of the barrier executes a purely horizontal motion when entering its closed position and that, when the gate is closed, the tip of the barrier is positioned within a fully closed casing to protect against unauthorized opening of the gate.

A gate having a main gate post and an outer gate post spaced from the main gate post. A support arm is mounted on the main gate post and extends from it to the outer gate post. The support arm is on the post above the ground a sufficient distance to allow some access under it. A flexible gate panel extends down from a roller carried by the support arm to normally close the gate. Winding means are provided for winding up the gate panel on the roller to partly open the gate. The support arm, carry...

A gate assembly for an animal passageway has two barriers that, when in use, are in close proximity to each other in a closed position and can be moved in opposing directions to each other to be in an open position. The operation of the gate assembly to the open position is achieved by an operator using an operator-activated control mechanism. At least one barrier is configured so that when in the open position it does not intrude into the passageway and activation of the control mechanism is ex...

A novel gate for use in a gate valve is provided with a cylindrical port which extends from the gate's upstream face to a downstream face. Sand grooves are provided on each face and passages extending in a radial direction from the port's cylindrical wall to the grooves are also provided. The passages are thus aligned with their longitudinal axes being generally perpendicular to the direction of fluid flow which enhances flushing of particles such as sand or scale from the grooves. A novel shell...