摘要:
A centrifugal speed governor, functioning as a minimum-maximum-speed governor, includes an adjusting member which is pivotable for adjusting the supply quantity, and the governor rod of the associated injection pump is adjustable via an intermediate lever by means of the adjusting member and a governor spring which is displaceable counter to the force of associated governor springs. The travel of the governor rod is limited in the direction of an increasing supply quantity by a governor rod stop including a starting spring. With the adjusting member resting on an end stop, the governor rod is pressed away from a basic test position (P) into its full-load position (V), and the differential travel (.DELTA.R) thereby resulting is absorbed by an accumulator in the governor linkage, preferably in the governor sleeve. The deflection stroke (A) of the accumulator is only slightly longer than that required to compensate for the differential travel (.DELTA.R). As a result, with the governor off the idling spring, with the accumulator blocked, can positively press the starting spring in the governor rod stop. Thus it is possible, in minimum-maximum-speed governors, to control a constant full-load position.
摘要:
An setup folding machine with at least two folding stations (F1, F2), which are formed by a pair of folding rollers (W1/W2; W2/W3) each. An intake device is provided including two feed rollers (T1, T2), which determines the speed of feed of the material to be folded, the intake device is located in a feed web (4) moving past the first folding station (F1). A enclosure feed mechanism is positioned directed toward the first folding station (F1), arranged behind the intake device. In order for an enclosure to be able to be optionally inserted into the first or second fold, the first folding station (F1) is associated with a knife-like deflecting member (6), which can be moved to the first folding station (F1) while the material is being deflected at the same time to form a fold, and can be actuated individually for each folding process by an electronic control device (21). An electromagnetcontrollable sheet deflector acting as a second deflecting member (26) is arranged directly in front of the folding pocket (25) located between the first folding station and the second folding station (F2), and the second deflecting member (26) can be moved from its resting position to the second folding station (F2) after the material to be folded has entered the folding pocket (25), while the material to be folded (43, 55) is deflected at the same time to form a fold.
摘要:
A folding machine for folding sheet material comprises a housing defining a space and having an in-take opening and a discharge opening for sheet material before and after it is folded. A frame is provided in the housing and carries four rollers which are engaged with each other to form a take-in nip for receiving sheet material from the in-take opening, a first folding nip for executing a first fold on the paper and a second folding nip for executing a second fold of the paper. The rollers are engaged to each other by gears and are rotated by a single electric motor for moving the sheet material from the take-in nip to the first folding nip and from the first folding nip to the second folding nip. A pocket is formed upstream of the first folding nip in the housing for receiving the sheet of paper to stop its forward progress. The sheet of paper is continued to be fed by the take-in nip so that it folds into the first folding nip which draws the now once folded paper from the first pocket. A second pocket is provided downstream of the first folding nip to permit the second folding nip to form a second fold whereupon the folded sheet material is discharged through the discharge opening of the housing. The housing is formed in two articulated parts as is the frame so that the housing can be opened. Three of the rollers which define the take-in and second folding nips are connected to one part of the frame so that when the housing is opened these rollers are separated from the other roller. The housing and frame are designed to open on a plane which is near a tangential plane passing through the first folding nip. When the housing is opened the rollers and the pockets are exposed for removing paper that might have jammed in the folding machine.
摘要:
A device for distributing sheets in a predetermined sequence into a plurality of collecting pockets successively arranged in a horizontal sheet feed path includes a guide member connected at the upper end of each of a plurality of walls successively arranged beneath the feed path to define the collecting pockets. The guide member extends at a substantially equal angle of inclination relative to the feed path and a deflection plane through which the sheets are deflected. A guide tongue connected to the guide plate extends in the same plane of inclination of the guide plate and projects into an adjacent one of the collecting pockets. A guide fin, connected to the guide plate, is provided for preventing areal contact between a deflected sheet and a guide plate.
摘要:
A hand-held power tool has a tool holder, a tool axially reciprocable in the tool holder, and a striking mechanism including a drive piston and a striker having a disc-shaped plate with a small axial dimension and a striker shaft having a cross sectional dimension corresponding to that of a tool shaft. The striker shaft transmits impact energy directly to a rear end face of the tool shaft without an intermediate member.
摘要:
Buckle folding machine including folding pockets, which have a paper stop each. One folding pocket being for collection and subsequent joint folding of a plurality of sheets. From the folding pocket the collected sheets of paper pass together through a folding mechanism, having a draw-in point formed by upper and lower draw-in rollers and having at least one pair of folding rollers forming a folding point. A sheet feeder with a conveyor track directed toward the draw-in point, in which a stacking ramp is located, is arranged in front of the draw-in point. To guarantee trouble-free operation even when the intake depth is smaller than the greatest sheet size, an additional sheet drive, which partially conveys the newly arriving sheet through the draw-in point into a collecting folding pocket arranged behind it in a position in which it is lifted off from the conveyor track or from the sheets deposited in the conveyor track behind the stacking ramp, is arranged between the draw-in point, which is provided with an open passage gap, and the stacking ramp at a vertically spaced location above the conveyor track.
摘要:
A motion indicating device used especially to monitor the movement of sheets of paper, which are moved via conveyor paths. A scanning device has a rotatably mounted scanning member, which lies on the scannable surfaces of the moving sheet of paper and is set into rotation by same, and which is provided with signal elements, which generate motion signals in a stationary electronic signal transmitter by their rotary movements. The scanning member is a ball (8) with uneven weight distribution or a hollow ball (81, 82). The ball is guided freely rotatably in a guide cage (7) and has at least one signal element. A signal transmitter is arranged on a side located diametrically opposite the contact point (19) of the ball (8) and is directed in this plane of rotation toward the ball (8).
摘要:
The present weapons system enables an aircraft to attack simultaneously a urality of targets in an aimed, guided manner by a like plurality of small missiles or projectiles. For this purpose the missiles are carried in a rotatable drum type platform comprising respective launching tubes. The firing control system of the aircraft includes a computer which takes into account automatically the target coordinates and other data for selecting that missile which is most suitable for a particular target, whereby the rotatable platform requires a minimum of rotation for aiming the missile with a proper lead factor at the respective target. The missile is then automatically fired without any need of the aircraft heading toward the target.
摘要:
A device for controlling and monitoring the level of a washing liquid in a washing unit of a printing machine which includes a wash tank having a washing liquid therein and a pickup roller mounted in the tank and rotatable in the washing liquid to lift the liquid on the surface of the roller and transfer it to a rubber blanket roller to be cleaned, comprises a control tank which is connected to the wash tank and arranged at substantially the same level as the control tank. A supply tank for the washing liquid is located above the control tank and supplies liquid into the control tank under the regulation of an electromagnetically controlled valve. The valve is switched in order to provide for flow from the supply tank into the control tank in accordance with the level in the control tank. The level of the control tank therefore maintains a level in the wash tank by virtue of the flow between the control tank to the wash tank. In order that the control can be effected precisely, the control tank is provided with a partition wall having a control size opening therethrough below water level so that water which is delivered from the supply tank into one side of the partition wall will flow to an opposite control side only gradually so as to regulate a float valve which is connected in a circuit to operate the control valve from the supply tank to the control tank.
摘要:
A variable speed control apparatus is provided for operating a work member in a first mode at a given uninterrupted speed and in a second mode intermittently in incremental movements. The apparatus comprises a drive motor, actuator means drivingly associated with the motor, coupling means actuable into and out of driving relation with the motor and control means associated with the work member. The work member is operated in the first mode in response to actuation of the coupling means into driving relation with the motor and, in response to actuation of the coupling means out of driving relation with the motor, the actuator means operates the control means for operating the work member in the second mode.