Abstract: A self-contained machine for simultaneously slicing and perforating severally the baked goods, such as English muffins, bagels, buns, rolls or the like, in two rows; the machine including a framework on which are mounted but a single motor, a split belt conveyor, a slicing station and a perforating station, and drive mechanisms severally operatively connecting the motor with the conveyor, slicing station and perforating station, the slicing station including a horizontal serrated wheel and guide cooperating with one of the split belts and each other for proper slicing of the baked goods in one row, and the perforating station including a cleated belt arranged on edge, a perforating member and a guide cooperating with the other split belt and each other, for proper perforating of the baked goods in the other row.

Abstract: An apparatus for dispensing paper towels of predetermined length includes a housing, a supply roll of a continuous paper web, means for advancing the paper web outside the case, means for at least partially cutting the paper web protruding from the case, and a motor for driving both such means. The motor is an electric d.c. motor which is rotated in a first direction until a paper web of predetermined length is advanced outside the case. The rotation is then reversed so that the paper advancement is stopped and the paper web is out. A first unidirectional coupling means is arranged between the motor and the advancing means and a second unidirectional coupling means is arranged between the motor and the cutting means to selectively actuate either of the advancing or cutting means according to the rotational direction of the motor.

Abstract: A supporting arrangement for a feed device for a drilling machine of a rock drilling unit (2) comprising a feed device (3) for a drilling machine (4), a cradle (5) supporting the feed device longitudinally displaceably and a supporting device (10) which is extendable in parallel with the feed device for supporting the feed device against a tunnel wall. The supporting device is supported by the cradle so that it remains stationary with respect to the cradle when the feed device is displaced.

Abstract: A hinge assembly particularly for mounting the door of a motor vehicle having a first and a second hinge wing with first and second hinge eyes, respectively, thereon, a hinge pin operatively interposed between said first and second hinge eyes and a knurled portion interposed between the hinge pin and one of the first and second hinge eyes to effect nonrotative relative engagement therebetween. A bushing of maintenance-free bearing material is interposed between the hinge pin and the other of the first and second hinge eyes and a liner made of high strength material is inserted in the bushing between the hinge pin and the bushing. The knurled section may extend over the hinge pin at least one and one-half times the length required for securely fixing the hinge pin.

Abstract: A hydraulic percussive machine, for example a jack hammer or a rock drill, has an accumulator with a flexible diaphram (35). A lift valve (40, 41, 42) closes the outlet of the accumulator if the flow exceeds the normal flow substantially and it traps a volume of oil between the diaphragm and the valve when it closes.

Abstract: In a hinge bracket and mounting plate assembly, the mounting plate has guides, in which the hinge bracket is slidable in its longitudinal direction for a depth adjustment and in which the hinge bracket and the mounting plate are interconnected by a fixing screw, which is screwed into the mounting plate and extends through a slot formed in the hinge bracket, an adjusting screw is screwed in a tapped bore of the hinge bracket and is backed by the mounting plate, and the mounting plate has fixing holes, which preferably consist of slots, which extend transversely to the hinge bracket so as to permit a vertical adjustment. The backing surface which is provided on the mounting plate and engageable by the adjusting screw rises toward the hinge-carrying end of the hinge bracket.

Abstract: In order to provide a method and a disc cutter machine for carrying out the method with which the previously strenuous blade receiver exchange is simplified and facilitated, it is provided that the blade receiver (8) to be exchanged is tilted up by means of a tilting arrangement (19) with its end facing the outer side of the disc cutter, received by a guide (27) and drawn out substantially in the radial direction along the guide from the region of the disc cutter (6) and then the new blade receiver is inserted along the guide into the disc cutter.

Abstract: An apparatus for longitudinally cutting a web into a plurality of ribbons has a plurality of blade holders mounted so that the relative spacing as well as the overall lateral position of the blades can be shifted in response to growth, shrinkage, and lateral shifting of webs, while maintaining the blades perpendicular to the direction of travel of the web. The blades are held in holders having the ends interconnected by a parallelogram linkage and clamped to a rigid bar and a flexible extensible rod.

Abstract: Disclosed is a cutting device which is horizontally displaceable by means of double-acting guide cylinders and is vertically movable along vertical guide rods by means of a positioning device 10. Before cutting, the cutting device is brought into the preselected position by the positioning device. The heated cutting wire of the cutting device is connected to a current source via sliding contacts resting against ball bearings, over which the cutting wire is guided. The circuit of the current source contains a microswitch, the switch lug of which comes to rest against a plate during the forward movement of the cutting device and switches over the microswitch, thus terminating the heating of the cutting wire. This takes place at the moment when a cutting wire, after cutting through a material guided vertically over a cutting bar, penetrates into a notch in the cutting bar.

Abstract: A pair of wire feed clamps are affixed to parallel flights of a pulley-supported steel cable which is axially driven back and forth by an oscillatably rotatable cable drum whereby the wire feed clamps, which reciprocably move in opposite directions, feed a wire strand along a first path. The cable drum is driven by a drive rod reciprocably movable by an orbiting crank pin on a support member which is adjustably mounted on a motor-driven rotatable feed crank. Crank pin orbit determines drive rod stroke, cable drum position, wire feed clamp spacing and travel, and wire segment length. A locking mechanism releasably locks the support member (crank pin) in desired adjusted positions. Two laterally spaced-apart conveyor assemblies, each having conveyor clamps for receiving the wire strand, convey severed wire segments along a second path perpendicular to the first.

Abstract: An improved hinge assembly is provided that dampens the movement of a spring biased and notched hold open detent link pivoted to the door mounted hinge strap, thereby giving a smoother movement to that hinge strap, and consequently to the door. A molded dampening pad is fixed to the detent link with a surface adjacent to an edge of the detent link. A cam roller engageable with the detent link edge is pivoted on a stop pin fixed to the body mounted hinge strap. The stop pin has a cylindrical surface that is also adjacent to the detent link edge. As the cam roller rolls along the detent link and into the notches, the surface of the dampening pad engages the cylindrical surface of the stop pin to dampen the movement of the detent link.

Abstract: This invention relates to a cutter apparatus operable to slice a block of cheese or other foodstuffs having a main support assembly with a cutter means mounted thereon. The main support assembly is provided with a rectangular box type structure having an upper top support plate to receive the foodstuffs thereon for a cutting operation. The cutter means includes a plurality, namely four (4), cutter actuator assembly. Each cutter actuator assembly includes a cutter assembly interconnected to a retractable filament assembly. Each cutter assembly includes a cutter filament member connected to an actuator handle member with the filament member being adapted to be pulled laterally from the main support assembly due to the retractable filament assembly. The retractable filament assembly is additionally operable on release of an actuator lever member to provide a biasing force to hold the cutter filament member in an extended position or selectively retract the same within the main support assembly.

Abstract: Windows are cut into envelopes and bags, in a machine with a feed device ing transport rollers for cut-out envelope blanks or for a web, a cutting roller, a tool cooperating with the cutting roller and at least one suction roller for further transport, are arranged in a window cutting station of the machine. The envelope material is moved along a straight line tangentially to the point of cutting out the windows and is then further conveyed in the peripheral direction of the cutting roller. The blanks with the windows cut therein and the cut-out waste are separately grasped by suction and removed.

Abstract: A machine for producing labels from tape is equipped with tape guide means defining a tape path between an entry point and exit point on the machine and tape drive means comprising at least a first roller, a first shaft on which the first roller is mounted and manual means for rotating the first shaft. A device for loading and positioning the tape in this machine comprises a control arm incorporating a finger having an end adapted to constitute an obstacle on the tape path. It is selectively retractable by the end of the tape when the tape is driven along the tape path. This finger thus constitutes a control lever for the control arm. The device also comprises a claw having an end adapted to immobilize the first shaft when the finger is retracted.

Abstract: An improved cutter chain construction for a bottom unloader of a storage structure. A cutter arm is mounted for rotation about the center of the storage structure, and an endless chain travels in an endless path on the cutter arm and carries a plurality of cutting members or hooks that are mounted at spaced intervals along the length of the chain. Each cutting member has a relatively thin body with a sharp leading edge and an outer enlarged head. The cutting members are mounted in a sequence along the length of the chain. A first cutting member in the sequence extends laterally outward from the chain and is disposed in a first plane, while the next succeeding cutting member lies in a second plane disposed at an acute angle to the first plane, whereby movement of the cutting members through the stored material will cut a wedge shaped mass.

Abstract: An electropneumatic hammer drill includes a housing containing a guide cylinder in which an exciter piston and a percussion piston are displaceably mounted in spaced relation with an air cushion formed between them. A hollow shaft encircles the guide cylinder within the housing and transmits rotary motion to a tool mounted in the hammer drill. A crankshaft for reciprocating the exciter piston via a piston rod is supported in two bearings located in the guide cylinder. The percussion mechanism for the hammer drill made up of the guide cylinder, the exciter piston, the percussion piston, the crankshaft and the piston rod form a subassembly. The subassembly can be inserted into and removed from the hammer drill as a unit.

Abstract: In order to cut through one or several sheets located wholly or partially on top of one another and guided, held by two transport conveyors, through a cutting zone in which a rotating cutting knife is arranged, of which the cutting edge is coordinated with the edge of one face of a cutting roller on the circumferential surface of which one transport conveyor is guided, with firm pressure and in order to achieve a precise cut, a pressure roller is provided, coordinated with the second transport conveyor and pressing it against the first transport conveyor, in the circumferential surface of which pressure roller an indentation has been made to accommodate the second transport conveyor and which extends axially, without contact, to the cutting plane of the cutting knife.

Abstract: A door closer has a first arm (4, 14) which is pivotally attached to the door case (2), a second arm (5, 15) which is pivotally attached to the door leaf (1), the opposite ends of the two arms being pivotally connected to each other (at C), and a spring biased driving device (6, 16) which is pivotally attached partly to the door case (at E), partly to the linkage system formed by the arm (4, 5; 14, 15). According to the invention the driving device (6, 16) is pivotally attached to the second arm (5, 15) at a distance from its joint (6) on the first arm (4, 14), and its joint (E) on the door case is located between the joints (A and B respectively) of the first and second arms (4, 5; 14, 15) on the door case and the door leaf respectively, the joint (B) of the second arm (5, 15) being located closest to the hinge joint (D) of the door.

Abstract: A machine saw comprises a machine frame, a slotted flat plate rotatable about a vertical axis and serving to receive a workpiece to be sawn, a motor-driven circular saw blade which is rotatable about a horizontal axis of rotation and is adapted to be passed upwards through the slot in the rotatable plate from beneath during sawing, a clamping bridge which is fixed in relation to the frame and spans the rotatable plate and a clamping device mounted by the bridge for clamping a workpiece on the rotatable plate. Part of the clamping device is formed by a clamping jaw movable vertically upwards and downwards and adapted to be set down onto the workpiece, this clamping jaw being rotatable about the axis of rotation of the rotatable plate and displaceable at right angles to this axis of rotation in a sliding guide means.

Abstract: A sheet film perforator utilizes a plurality of heated pins projecting from a rotating cylinder to perforate film being drawn across the rotating cylinder. The pins are heated by multiple heat sources including a central heating element for heating the rotating cylinder from the inside and surface heaters mounted adjacent the pins to heat the pins from the outside and maintain a controlled pin temperature during the perforation operation. A heat shield is provided to syncronously be positioned when a pressure roll brush retractor removes film from engagement with the hot pin perforation roller. Perforation dimensions may be controlled through the use of micro adjusting means for controlling hot pin penetration into the film.