An apparatus having a mechanically-biased container restraint, the apparatus comprising: an assembly comprising a block having a proximal and a distal end with a channel therein from the proximal end to the distal end, the channel adapted to receive a container from the proximal end in the block, the channel having a length such that the channel does not receive a cap portion of the container it is adapted to receive; a platform biased against the distal end of the block wherein the platform is a mechanically biased lower plate, wherein the mechanically biased lower plate is biased to rest proximate to the distal end of the block with a second biasing force; two levers (1108, 1110), each lever positioned proximate to an end of the channel at the distal end of the block wherein the two levers (1108, 1110) are pivotally attached to the block by a pin and wherein each lever (1108, 1110) has a first portion that extends substantially radially with respect to the channel and a second portion that extends substantially axially relative to the channel and wherein the first and second portions of each lever (1108, 1110) rotate with respect to an axis defined by the pivotal attachment of each lever (1108, 1110) to the block wherein each lever (1108, 1110) is mechanically biased with a first biasing force such that the substantially radial portion of each lever (1108, 1110) extends inwardly and upwardly into the channel and the substantially axial portion of each lever (1108, 1110) extends upwardly and outwardly with respect to a channel axis; wherein, in response to a force exerted by the container into the channel that exceeds the mechanical bias of each lever (1108, 1110), each lever pivots at a proximal end of the substantially radial portion and substantially axial portions of each lever (1108, 1110) such that a distal end of the substantially radial portion is urged further into the channel in response to the force exerted on the container that the channel is adapted to receive and the distal end of the substantially axial portion is urged toward the container that the channel is adapted to receive such that the distal end of the axial portion contacts the container that the channel is adapted to receive with a static friction force (F s); and wherein the second biasing force exceeds the first biasing force and further wherein the mechanically biased lower plate is advanced from contact with the block when the force of the container exerted on the two levers (1109, 1110) allowing the container to be advanced further into the channel thereby further advancing the distal end of the substantially radial portion of the two levers (1108, 1110) lower and the distal end of the substantially axial portion of the two levers (1108, 1110) further inward. an assembly comprising a block having a proximal and a distal end with a channel therein from the proximal end to the distal end, the channel adapted to receive a container from the proximal end in the block, the channel having a length such that the channel does not receive a cap portion of the container it is adapted to receive; a platform biased against the distal end of the block wherein the platform is a mechanically biased lower plate, wherein the mechanically biased lower plate is biased to rest proximate to the distal end of the block with a second biasing force; two levers (1108, 1110), each lever positioned proximate to an end of the channel at the distal end of the block wherein the two levers (1108, 1110) are pivotally attached to the block by a pin and wherein each lever (1108, 1110) has a first portion that extends substantially radially with respect to the channel and a second portion that extends substantially axially relative to the channel and wherein the first and second portions of each lever (1108, 1110) rotate with respect to an axis defined by the pivotal attachment of each lever (1108, 1110) to the block wherein each lever (1108, 1110) is mechanically biased with a first biasing force such that the substantially radial portion of each lever (1108, 1110) extends inwardly and upwardly into the channel and the substantially axial portion of each lever (1108, 1110) extends upwardly and outwardly with respect to a channel axis; wherein, in response to a force exerted by the container into the channel that exceeds the mechanical bias of each lever (1108, 1110), each lever pivots at a proximal end of the substantially radial portion and substantially axial portions of each lever (1108, 1110) such that a distal end of the substantially radial portion is urged further into the channel in response to the force exerted on the container that the channel is adapted to receive and the distal end of the substantially axial portion is urged toward the container that the channel is adapted to receive such that the distal end of the axial portion contacts the container that the channel is adapted to receive with a static friction force (F s); and wherein the second biasing force exceeds the first biasing force and further wherein the mechanically biased lower plate is advanced from contact with the block when the force of the container exerted on the two levers (1109, 1110) allowing the container to be advanced further into the channel thereby further advancing the distal end of the substantially radial portion of the two levers (1108, 1110) lower and the distal end of the substantially axial portion of the two levers (1108, 1110) further inward.