摘要:
A wire clamping ligature for use with single reed musical instruments such as clarinets and saxophones which includes two retaining wires extending circumferentially around the mouthpiece and reed of the instrument to affix the reed to the mouthpiece and yet allow normal musical vibration thereof wherein the retaining wires are approximately thirty thousandths of an inch (0.030 inches) and including two drawbars each attached to the opposite ends of the two retaining wires with an adjustable clamp secured therebetween. The adjustable clamp can comprise one or two threaded screws rotatably mounted in one drawbar and threadedly engaged with respect to the other drawbar to urge the drawbars together for tightening of the two retaining wires about the reed and mouthpiece for detachably affixing them together.
摘要:
A vibration isolator has four fluid filled variable volume load bearing chambers, with two arranged on one side of a core and the other two on the other side. The core and chambers are contained within a frame, with the chambers extending between the core and the frame, so that vibrating the core axially compresses or extends the chambers. Diagonally opposite pairs of chambers are each connected with a separate fluid track, and the two fluid tracks may be tuned to have different resonant frequencies or the same resonant frequency. The chambers are defined by elastomeric bodies which may be reinforced using a tubular shaped reinforcing element adjacent to the chamber, to help contain the pressures within the chamber without materially increasing the compression strength of the elastomeric bodies. A fluid expansion chamber communicates with the fluid envelope of the chambers and tracks through porous flow restriction elements which allow flow to or from the expansion chamber in response to temperature changes of the fluid but snub significant flow to or from the expansion chamber which may otherwise be caused by subjecting the isolator to vibrations.
摘要:
Packaging pads comprise top and bottom sheets laminated together along peripheral surface portions with a pocket of comminuted filler material centrally disposed between the sheets. Apparatus for manufacturing the pads continuously feeds an endless bottom sheet along a predetermined travel path, and liquid adhesive is applied to the upper surface of the sheet as it so travels. A stream of filler material is divided into spaced apart individual pocket amounts and these filler amounts are joined to the adhesive coated surface of the bottom sheet. A top sheet coated with liquid adhesive on the underside thereof is laminated onto the bottom sheet and the pocket amounts of filler material. The thus formed continuous laminate is transversely cut midway between adjacent pockets of filler material to thereby form individual packaging pads.
摘要:
A cooling device is disclosed for a computer having a drive bay region with at least one drive bay adapted to receive a drive. The device comprises a case configured to mount within the drive bay of the computer having at least a first and at least a second opening. When mounted within the drive bay, the first opening is exposed to ambient air about the computer and the second opening is disposed within the drive bay region of the computer. The device also comprises at least one air movement device mounted within the case. The air movement device is configured in one of two ways. In a first way, it draws cooling air through the first opening and exhausts substantially all of the cooling air though the second opening into the drive bay region. In a second way, the air movement device draws air through the second opening from the drive bay region and exhausts it through the first opening. A mechanism for supplying power to the air movement device is also provided.
摘要:
A linkage rod for absorbing shocks and vibrations has a housing with a central bore. A spacer tube and a spacer load plate are inserted into the central bore. Several resilient members preferably formed of crimped metal wire strands are located in the central bore between the spacer load plate and a piston load plate. A mounting member has a shoulder formed between body and neck portions. A snubber cap having a central opening with an inwardly-directed wall is positioned around the mounting member. A snubber nut is attached to the mounting member to trap the inwardly-directed wall between the snubber nut and the shoulder. The snubber cap is fastened to the housing and the mounting member may move axially relative to the housing. The resilient members resist axial movement of the mounting member.
摘要:
The invention is applied to an apparatus for filling storage boxes with lemons or other articles. The articles are first diverted from a conveyor into a measuring and collecting bin. When articles fill the bin to a level which will fill a box beneath the apparatus, a photoswitch stops the conveyor to prevent overfilling of the bin. The photoswitch also tilts a chute at the bottom of the bin whereby the entire contents of the bin are emptied into the box. Although the level of articles in the bin falls below the beam which operates the photoswitch, an internal time delay in the photoswitch holds the conveyor in stopped position and it also holds the chute in tilted position until sufficient time has passed for the box to be filled. Immediately thereafter, the chute is returned to upright position, the conveyor is restarted, and an unfilled box takes the position of the filled box.