Clamps
First Claim
1. A clamp comprising a main body portion provided with a first rolling means, an arm mounted on the main body portion and provided with a second rolling means, means for moving the arm between a closed position in which said second rolling means is engageable with a rail and an open position in which said second rolling means is clear of the rail and means for suspending a lantern from the clamp, wherein the arm is provided with a hook and the main body portion is provided with a recess, said hook being engageable in said recess when the arm is in the closed position.
1 Assignment
0 Petitions
Accused Products
Abstract
A clamp for use in stage lighting and similar applications comprises a main body portion which is provided with a pair of wheels and an arm mounted on the main body portion provided with a pair of wheels . A locking handle is pivotally mounted on the arm and is arranged to move the arm between a closed position in which the wheels are engageable with a bar or rail and an open position in which the wheels are clear of the bar or rail. A bolt or screw is secured to the arm and is adapted for attachment to the clamp of a lantern.
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Citations
9 Claims
- 1. A clamp comprising a main body portion provided with a first rolling means, an arm mounted on the main body portion and provided with a second rolling means, means for moving the arm between a closed position in which said second rolling means is engageable with a rail and an open position in which said second rolling means is clear of the rail and means for suspending a lantern from the clamp, wherein the arm is provided with a hook and the main body portion is provided with a recess, said hook being engageable in said recess when the arm is in the closed position.
- 6. A clamp comprising a main body portion provided with a first rolling means, an arm mounted on the main body portion and provided with a second rolling means, means for moving the arm between a closed position in which said second rolling means is engageable with a rail and an open position in which said second rolling means is clear of the rail and means for suspending a lantern from the clamp, wherein the means for moving the arm between the closed and open positions comprise a locking handle which is pivotally mounted on the arm.
- 8. A clamp comprising a main body portion provided with a first rolling means, an arm mounted on the main body portion and provided with a second rolling means, means for moving the arm between a closed position in which said second rolling means is engageable with a rail and an open position in which said second rolling means is clear of the rail and means for suspending a lantern from the clamp, wherein means are provided for securing the clamp against movement along the rail, said clamp securing means comprising a clamping screw which is engageable with the rail in order to immobilize the clamp.
Specification