Abstract: The printer is for printing a continuous fan-folded paper web having series of perforations at each side edge thereof which is adapted to be fed into the printer from the bottom of the printer. The printer comprises an upper housing member swingably supported by a lower housing member so that the upper housing member is movable between a closed position for the printing operation and an opened position at which an accessible space is provided between the bottom of the upper housing member and the lower housing member. The upper housing member includes a printing mechanism and a pin-tractor mechanism for feeding the paper web a portion of which extends outwardly downwardly from the bottom of the upper housing member. The lower housing member has a feed-in opening at the bottom thereof for the paper web.

Abstract: Lifting device or load-supporting apparatus for use in workshops. The apparatus is connected to a stand arranged on the floor by means of scissor-like connecting rods, at least two of the connecting rods are each coupled to an axle carried by the stand. The height of the rods are adjustable via at least two spring units which has a completely relaxed starting position. The two spring units are each connected to a bearing and an abutment over the entire lifting height of the load-supporting apparatus. A locking apparatus is associated with the spring units which permits the starting position of at least one spring unit to be fixed at different lifting heights.

Abstract: The mattress comprises two successive, coupled and superimposed layers (6, 7), each layer being formed from a fluidtight surrounding wall. The first layer (6), adapted to receive the body of the user, contains a plurality of adjacent but separate air bubbles (8) having a substantially identical volume at all points of the layer. The second layer (7) contains air bubbles (10) which are adjacent and separate but have different volumes according to their location in the second layer. The bubbles of the second layer have a volume proportional to the relative density of the various parts of the body of the user stretched out on the mattress. Application in medical uses or swimming pool or seaside amusement.

Abstract: In an assembly constituted by a drill and a tenon for anchoring a dental prosthesis adapted to be fixed in the root of a tooth the drill has a diameter slightly larger than that of the tenon at all points along its length. The tenon and the drill have similar meridian profiles and each is constituted by two coaxial cylindro-conical parts of large and small diameters respectively, the cylindro-conical part of small diameter comprising a cylindrical part connected to the small base of the conical frustum of the cylindro-conical part of large diameter projecting out of the root of the tooth. The tenon and the drill terminate respectively in their truncated end part of small diameter, of which the angle of taper is selected so as to ensure a wedging of the truncated end part of small diameter of the tenon in the corresponding truncated end part of the drilled hole. Futher the truncated end part of the tenon as a length shorter than that of the drill.

Abstract: A method for the continuous recovery of non-iron metals from a molten metallurgical slag containing lead, copper or nickel by continuously reducing the layer with carbon dust. The metal layer produced at the furnace bottom is maintained sufficiently thin so that it is between 0 and 20 mm thick. Injection of carbon dust into the metal layer is avoided.

Abstract: A writing instrument case includes a case body, a lid frame releasably attached to the case body, an edge member provided at an opening of the casy body such as to engage with the lid frame, the edge member having a row of through-holes through which writing instruments may be inserted one by one, a retainer plate made of flexible material and provided between the edge member and the case body, the retainer plate having retaining holes aligned with the through-holes, each of the retaining holes having an inner pheriphery on which protrusions are appropriately provided. The case body has a recessed edge on the upper portion of its periphery surface, while the lid frame has a protruding member engaging with the recessed edge.

Abstract: A splash lubrication system is provided for motor vehicle transmissions and comprises an oil sump (42) in the bottom portion of a case (30). The case (30) accommodates a transmission shaft (31) provided with gears (34 to 37) which are immersed in the oil at least partly when the said oil sump (42) is filled completely. In order to prevent the synchronizing mechanism from being blocked by cold and, consequently, very viscous oil in the presence of extremely low operating conditions--a condition which could lead to unsynchronized faulty gear shifting operations and, thus, damage to the transmission, the oil sump (42) is connected with a cavity (33) into which oil is drawn from the oil sump (42) under low operating temperature conditions of the transmission. To this end, preferably, an expansion body (38) is arranged in a cavity (33) in a transmission shaft (31) which contracts under cold conditions, and the cavity (33) is connected with the oil sump (42).

Abstract: Safety mechanism for locks (electronic lock) comprising a pick-up performing the function of a key and a sensor performing the function of a lock part. The pick-up is provided with a pre-determined surface arrangement of magnetically permeable, preferably inactive material in the form of soft-iron pins forming exciting elements, which forms a code. For detecting the code of the pick-up, the sensor is provided with an arrangement of sensor elements in a surface matrix of the same geometrical extension, which sensor elements can be varied as to their ohmic resistance by a change in the distribution of the magnetic field lines and take the form of magnetically controllable magneto-resistors. The magneto-resistors are set up, preferably, in the manner of an integrated circuit.

Abstract: A miniaturized overload protection device for connecting electrical components and two or more electrically conductive wires and, more particularly, for connecting the adjacent end parts of the two wires together and connecting the other ends to the electrical components, comprising a protective device for connecting two electrically conductive wires together, and electrical components adapted to be connected with the electrically conductive wires. The protective device includes a binder having a low melting point, which is solid at ambient temperature to surround the adjacent end parts of the two wires when they are placed together and provides the mechanical strength therefor; and a coating made from a rigid material completely surrounding the solid binder and confining this binder in position at the time of its melting caused by a high current flowing through the conductive wires, thus maintaining the connection between the conductive wires.

Abstract: A read head for a Wiegand wire has an E-core with a pick-up coil for the "1" bit wound on one outer leg and a separate pick-up coil for the "0" bit wound on a second outer leg. The E-core is composed of a relatively thin ferromagnetic E-laminae spaced from a relatively thick E-laminae. Between thin and thick laminae in each leg there is an appropriately polarized magnet. The result is to establish a first field across the face of the read head between the center leg and a first outer leg. This first field reads the one bits. Similarly, a second field between the center leg and the other outer leg reads the zero bits. Each one bit wire is on one side of the code strip and each zero bit wire is on the other side of the code strip so that the one bit and zero bit wires are passed respectively across the first and second reading fields provided by the read head.

Abstract: In connection with a clamping device for parts, workpieces, molds, or the like, it is proposed to guide the clamping element on both sides in laterally arranged sliding rails of a bearing block which are disposed in inclined position, sloping from the rear towards the front. The bearing block is seated on a base body mounted on a base plate of a modular clamping system or another support. For the purpose of relative adjustment of the clamping element on the bearing block, a threaded element is provided which is in threaded engagement with at least one of the said parts and which bears against the other one of said parts.

Abstract: A bite indicator for use when fishing with a fishing rod. The indicator comprises a strain sensing element mounted to a support and electrically connected to an indicator. In one embodiment the support comprises a fishing rod support whereas in another embodiment it comprises the wall of the fishing rod. In both cases, movement of the fishing rod when a bite occurs is sensed by the sensing element and thereby actuates the indicator.

Abstract: Collapsible scaffolding comprises a number of platforms which can be suspended in spaced vertical array for chains secured to the corners of the platform, and arranged at the top for the support of the scaffolding by a crane or a horizontally movable trolley. Additional cables at each end of the platforms are each secured at the lower end to the lowest platform and pass through guides secured to the intermediate and top platforms to a winch enabling the platform to be quickly lifted and stacked but allowing them to be quickly lowered and erected. The guides provide lateral location of the stacked platforms.

Abstract: To splice the last sheet of a package of sheets or forms joined in a continuous strip and folded accordian-wise which are fed to a printer with the first sheet of the following package wherein there is provided a splicing plane made up of two semiplanes alignable on the splicing plane, sidewalls, which can be raised after splicing to disengage the spliced sheets from the positioning pins or rungs provided on the two semiplanes, are provided.

Abstract: Machining apparatus (10) which can be mounted on the cage (15) of a slew bearing (12) to grind the bearing surface (23) of a rail section (13). The machining apparatus is provided with a grinding profile 30 which it may follow to perform the desired cut along the rail section (13).

Abstract: To provide a random device for randomly testing logic circuits, particularly microprocessors, it is necessary to use a device for transforming the occurrence probability of logic vectors to produce vectors sequences having time-changing probabilities. Such a device comprises a memory or an equivalent circuit to which are applied input logic vectors (Ve1, Ve2 . . . Vn) having respective occurrence probabilities which are different or the same and containing, in the respective areas of different range, the different categories of output vectors (Vs1, Vs2 . . . Vsi). Thereby the occurrence probability of a predetermined output vector (Vs1, Vs2 . . . Vsi) depends both on the range of the memory area wherein said vector is stored, that is to say the number of elementary positions or eight-bit bytes which are included within said area, and on the respective probabilities (pr1, pr2 . . . prn) of the input vectors (Ve1, Ve2 . . . Ven) corresponding to the addresses of the elementary positions, m1, m2 . . .

Abstract: Inlet and outlet service units for a printer in a service apparatus for machines using continuous strips of paper forms or sheets are combined and the inlet unit carries out the splicing of the last sheet of the pack being fed to the first sheet of the immediately following pack while the outlet unit takes care of collection, piling and accordion-like folding in packs of predetermined size and a cut to separate the strip arriving from the printer.

Abstract: A device for supporting a transparency on a top surface of an overhead projector is foldable from a compact unit into a structure having a planar base with an indentation for receiving a transparency and legs which are pivotally mounted on the base and rest on the top of an overhead projector to position the transparency at a specific spacing therefrom. Other pivotal elements position a lens at a given distance above the base so that light from the overhead projector will pass through the transparency and project it on a remote screen without white light showing around the sides of the transparency.