摘要:
1A two chamber engine mount with hydraulic damping includes a housing having rubber-elastic walls, an intermediate plate disposed in the housing between the walls dividing the housing into fluid-filled chambers, the intermediate plate having a substantially spiral-shaped canal formed therein interconnecting the chambers, the canal having a length being a multiple of the diameter thereof, and the intermediate plate having at least one orifice vertically formed therethrough being hydraulically parallel with the canal.
摘要:
The invention relates to a condenser lens system for microscopes for uniformly illuminating an object field of a microscope objective. The condenser lens system is constituted of at least two individual condenser lenses in a common lens mount, said two lenses having an optical axis each which intersect in a common interspace included by the individual lens members in spaced relation. The point of intersection of the condenser lens system is the point of rotating the entire system to insert the individual condenser lenses required into an illumination beam.
摘要:
Growing of microorganisms takes place in a fermenter in which simultaneously products of metabolism are separated and withdrawn by microfiltration with the aid of a diaphragm filter, and a suspension of microorganisms is stirred in the fermenter in the region immediately surrounding the diaphragm filter.
摘要:
Apparatus for transporting a scalloped stream of paper sheets from a first horizontal path into an aligned second horizontal path or into a downwardly sloping third path has a flap which is pivotable in a gap separating the first and second paths between a first position of coplanarity with the first and second paths so that the stream can enter the second path by traveling along the upper side of the flap and a second position in which the flap extends above the first and second paths to block the entry of the stream into the second path while permitting the stream to advance from the first into the third path. An intercepting plate is moved across the discharge end of the first path prior to pivoting of the flap from the first to the second position to temporarily prevent (e.g., for an interval of a few milliseconds) the advancement of sheets beyond the first path. This enables the last (partly overlapped) sheet of a preceding portion of the stream to enter the second path before the foremost sheet of the next portion of the stream is permitted to enter the third path. The intervals of blocking of the first path are sufficiently short to prevent the gathering of several sheets immediately behind the intercepting plate during blocking of the discharge end of the first path.
摘要:
A cylindrical drum of a rotary transfer conveyor rotates below an opening at the bottom of a magazine for a stack of superimposed sheets. The drum carries a first pivotable gripping lever and one or more second pivotable gripping levers. The common pivot axis of the levers is parallel to the axis of the drum, and the levers are pivotable by cams so that their speed relative to the magazine is less than the peripheral speed of the drum during travel immediately below the opening in the bottom of the magazine. At such time, a set of suction cups flexes a portion of the lowermost sheet of the stack through the opening and between the first and second gripping levers so that the speed of the engaged sheet need not be immediately accelerated to the peripheral speed of the drum but merely to the relatively low absolute speed of the levers. The levers extract the lowermost sheet from the magazine and simultaneously accelerate the extracted sheet to the peripheral speed of the drum prior to moving apart so that the sheet can descend by gravity. The levers subsequently return to positions below the opening in the bottom of the magazine to proceed with extraction of the next lowermost sheet.
摘要:
Apparatus for removing and opening successive folded sheets of a stack has a transfer conveyor whose gripper engages the folded backs of successive sheets and propels them into the elongated channel of a straight guide extending tangentially of the flanges of the transfer conveyor. When a sheet is released, its folded back is leading and the sheet continues to travel in the channel. Such sheet is braked by a stop which is moved at the speed of the sheet during disengagement of the sheet from the transfer conveyor, which has a clamping device that grips the folded back of the sheet, which moves at a gradually decreasing speed subsequent to engagement of its clamping device with the folded back to brake the sheet in the channel, and which is disengaged from the sheet not later than at the time when one or both front edge portions of the sheet are engaged by rotary spreading members which open the sheet during removal from the channel and drop the opened sheet onto a roof-shaped evacuating conveyor. The transfer conveyor cooperates with an auxiliary conveyor during movement of a sheet from the magazine toward and into the channel, and the auxiliary conveyor is disengaged from the sheet not later than when the stop begins to brake the sheet by reducing the speed of movement of the folded back in a direction deeper into the channel. The stop is moved forwardly simultaneously with removal of the sheet from the guide by the spreading members or immediately thereafter so as to extend across the path of the next sheet while such next sheet enters into and advances in the channel.
摘要:
A method of feeding fish in a tank with water comprises the steps of forming in the fish tank a region for feeding fish, introducing into the region a water-stable fodder and forcedly moving the water in the fish tank so as to maintain the fodder floating in the feeding region. In an arrangement for performing the method means forming a feeding station, and means for forcedly moving water in the feeding station are provided. The method of the invention may also comprise the step of utilizing heat liberated during operation of a biological reactor for heating agitated water in the fish tank. A water-stable fish fodder comprises particulate nutrient matter and a protein-containing binder imparting substantial water stability to the fodder formed as a pallet.
摘要:
Bookbinding machine with a horizontal turntable 2 which carries pairs of clamping jaws (3, 4) and transports the pairs of clamping jaws past work stations (A-E), wherein a disc cam (16) is provided coaxially with the turntable to open and close the pairs of clamping jaws, characterized in that the axis of the turntable is defined by a shaft (13) which is rotatably connected with the turntable by friction elements (11, 14, 15), that the shaft is non-rotatably connected with a second disc cam (44) which controls the movements of a restrainer (40) into and/or from the path of the turntable in order to arrest briefly the turntable whenever a pair of clamping jaws is located at the inserting station (A) for inner books.
摘要:
A process for drying solid residues obtained in filtration processes, in which the residue is first dried by passing a gas through it while it is still on the filter elements, and then whirl drying the residue in a lower portion of the reaction vessel. A system in which the drying gas is circulated is described. This results in a process which permits the preparation of dry filter residues which are easily transportable and avoids problems of separation from the filter elements while still wet.
摘要:
A process is provided for filtering a liquid containing solids having a substantially different specific gravity relative to the liquid. The process includes the steps of providing a filter element having a hollow interior communicating with an outlet and being bounded by a filter mesh, passing a liquid containing solids having a substantially different specific gravity relative to the liquid against the outside of the filter mesh so that the filtrate enters into the interior and leaves the filter element through the outlet, and establishing a pressure differential between the interior and the ambient space so as to form an elevated pressure within the interior of the filter element, thereby irregular filter cake formations of the solids are at least substantially avoided because of the pressure differential between the outside of the filter mesh and the hollow interior. A filter for performing this process is also provided.