baber/WOPTO huggingface dataset:
Patent DE-3002555-A1 (DE)
Title: Carbon black prodn. for use in dry cell battery compsn. - by heating carbon black, esp. oil black in inert atmos.
Inventor: GLASSTETTER FRED E
IPC: C09C1/00
Filed: 1980-01-25
Abstract: Prodn. of C black for use in a dry cell battery compsn. involves heating a charge of C black, with a dibutyl phthalate (DBP) absorption of 200-250 cc/100 g and an average particle size distribution of 55-150 nm, to 1400-2400 (2200) deg. C in an inert atmos. and cooling below 325 deg.C in an inert atmos. The charge is heated for 9-21 s, using a heating rate of 100-150 deg.C/s. The particle size distribution can be bimodal between 52-58 nm and 112-118 nm. The starting material has a N2 surface area of 30-60 square metres/g. The prod. has an average particle size distribution of 50-120 nm, OBP absorption of 210-170 cc/100 g N2 surface area of 30-60 square metres/g and inter planar crystal lattice spacing of 2.7-3.7 nm. This treatment gives oil black properties at least as good as those of acetylene black.
Patent DE-3003431-A1 (DE)
Title: Scanning system for workpiece in machine tool - has DC motor rotating spindle with needle touching workpiece
Inventor: SCHNEIDER ARMIN
IPC: B23Q11/00
Filed: 1980-01-31
Abstract: The scanning system has a scanning needle fixed to a driving spindle and pivoting to touch the workpiece when the spindle is rotated. A signal is released when the needle touches the workpiece, which indicates the presence of the workpiece. A dc motor drives the spindle. The signal produced when the needle touches the workpiece is produced by interrupting the rotary movement of the spindle. The dc motor is coupled to the spindle via gearing. The motor's direction of rotation is reversed at the end of the spindle's rotation by reversing the current supplied. An angle encoder is coupled to the spindle and may be either digital or analogue.
Patent DE-3007268-A1 (DE)
Title: Flexible coupling between in line shafts - has coupling halves retaining intermediate members supported by flexible straps or cables
Inventor: CHIVARI ILIE
IPC: F16D3/60
Filed: 1980-02-27
Abstract: The flexible coupling between two shafts includes two coupling halves, each consisting on a sleeve mounted on a shaft end, and each with a set of three axial bolts (38,40,42 and 44,46,48) projecting from it. The two sets project towards each other, and their free ends overlap. Fitting inside the two sets are two triangular plates (50) parallel to each other, and supported by resilient steel cords (62). These cords are anchored around the bolts and arranged so that one cord extends between two bolts, passing around one corner of a triangular plates. A large number of alternate designs use intermediate members between coupling halves, and resilient connections.
Patent DE-3009080-A1 (DE)
Inventor: ZULAUF HERBERT
IPC: B22D19/00
Filed: 1980-03-10
Abstract: A device for manufacturing vehicle wheels having a rim which is wreath-shaped in cross section surrounding a cast wheel body is such that at least one die wall delimits the mold to be filled with cast metal. The prefabricated rim is laid between facing surfaces of a die plate and a center plate with the result that the die faces and the rim form the outer contours of the wheel body when the mold space between the die faces and rim is filled with molten metal which is introduced into the mold space under pressure. The rim itself is held by a clamping ring and can be removed in two pieces from the die assembly. A device for spraying a cooling medium onto the rim is provided on or in the clamping ring. The rim features on its inner face a central strut which is T-shaped in cross section, and on both sides of the actual struts are side struts which are inclined outwards. The free ends of the side struts are displaced by the surface of the die plates.
Patent DE-3009127-A1 (DE)
Title: Implanted inhibited type heart stimulating appts. - has externally actuated test rate mode receiver which can be synchronised to spontaneous heart beats
Inventor: KRUPKA YAAKOV
IPC: A61N1/365
Filed: 1980-03-10
Abstract: The pacer includes a device to synchronise the start of the fixed rate mode to occurrence of a spontaneous heart beat, thus reducing the chance of a test rate stimulating pulse occuring during the vulnerable T-wave period. The test mode is selected by a magnetic, electromagnetic, acoustical, optical or piezoelectric device. If the test mode is selected between two spontaneous beats the synchroniser responds to a heat to inhibit heart beat sensing circuit and to cause pacer timing circuit generate stimulating pulses at a fixed higher-than-normal rate, the first such pulse occurring at the fixed rate interval after heat. When a predetermined number of fixed rate pulses have been generated, synchroniser causes timing and sensing circuits to revert to normal demand operation. If the request for the test mode, is still being applied, synchroniser causes the start of a further sequence of the predetermined number of fixed rate pulses to be synchronised to the spontaneous beat or demand-generated stimulating pulse next following the last pulse of the previous test rate sequence - this operation repeating until the test mode request is removed.
Patent DE-3017799-A1 (DE)
Inventor: JOERNHAGEN LENNART
IPC: F16J15/34
Filed: 1980-05-09
Abstract: The sealing ring (16) is for sealing off a shaft in a shaft mounting (18), in which there is a face (12) transverse to the axis of rotation of the shaft (2), against which a sealing lip (22) is intended to rest. The sealing ring (16) has a rubber main body (18) which can be mounted under stress on the shaft (2) and to which the sealing lip (22) is integrally joined. The main body (18) is provided with a peripheral reinforcing ring (20) which ensures that the main body (18) remains in essentially constant engagement on the shaft, even at high speeds of rotation, while the sealing lip (22) can lift off from the transverse face (12) at high rotational speeds of the shaft. <IMAGE>
Patent DE-3021295-A1 (DE)
Title: Stable aq. sodium alumino-silicate suspension - contg. tri:sodium nitrilo-tri:acetate dissolved in aq. phase, and controlled water quantity
Inventor: DIESSEL PAUL ING GRAD
IPC: C11D3/12
Filed: 1980-06-06
Abstract: In aq. storage-stable, flowable and pumpable Na aluminosilicate suspensions, contg., w.r.t. suspension, 15-70 wt.% Na aluminosilicate, the proportion of tri-Na nitrilotriacetate dissolved in the aq. phase is 15-50 wt.%, w.r.t. suspension, provided that the suspension contains at least 20 wt.% water. The suspension is pref. prepd. by (a) introducing the Na aluminosilicate, esp. zeolite A, into the aq. Na nitrilotriacetate soln. and dispersing. The suspensions are used as builders in phosphate-free or low-phosphate detergent mfr. Suspension prepn. requires no added dispersant. Suspension use in detergent compsns. overcomes incrustation problems in washing.
Patent DE-3021850-A1 (DE)
Title: Clamping mechanism for fluorescent lamp light fitting - uses locking arms at sides, retained by lugs when swung outwards to release position
Inventor: PEPPING FRANZ
IPC: F21V17/18
Filed: 1980-06-11
Abstract: The trough-shaped transparent lamp cover (11) below the casing (1) for a fluorescent lamp uses plastics clamps (8) which are swung outwards to a release position. Each clamp is C-shaped in section with a vertical finger grip (14) projecting upwards from the top. The bottom (9) hooks under a lip (10) along the top edge of the cover, and forces it against a resilient cushion (3) inside a channel (2) along the edge of the casing. A horizontal part of the clamp terminates in a rib with pegs (12) projecting from each end to rest in a groove behind vertical lugs (13) above the channel holding the clamp suspended after release. When locked, these pegs fit into a recess (6) further inwards and higher up, to lock behind an inner pair of lugs (4). These lugs have outside surfaces (5) which slope downwards, to guide the clamp.
Patent DE-3022022-A1 (DE)
Title: Gas mixing burner for heat treatment machine - has injectors producing preheating flame mixt. in separate, cylindrical insert
Inventor: KIMM DIETER
IPC: F23D14/56
Filed: 1980-06-12
Abstract: The burner has upper and lower nozzle plates separated by a passage for oxygen and secured to a distributor head with ducts for combustion oxygen, fuel gas etc. An injector device (22), mixing the gases for the preheating flame, is a separate, cylindrical component fitting into a hole (20) drilled in each nozzle plate (12,14). The component surface combines two axis-parallel grooves (30,32) respectively connecting to fuel (36) and oxygen ducts (34). Paired bores (42,44) from the grooves meet to form an injection bore (46) aligned with a discharge bore (48) in the respective plate.
Patent DE-3023978-A1 (DE)
Title: Rectilinear rolling friction bearing - has recirculation channel in same vertical plane as load-bearing channel
Inventor: GROSSMANN SIEGFRIED
IPC: F16C19/20
Filed: 1980-06-26
Abstract: The rolling friction bearing for use in supporting longitudinally moving machine elements consists of a straight running track section for the balls or rollers, joined to a return channel below it in the same vertical plane. The central section is surrounded by two halves of the return channel section which have a parting in the vertical plane and locate in their thin top section two runner rods for the balls or rollers. The lower section forms a daimond-shaped return channel. Elastomer elements are used to join the sections. The central section (1) carries in a groove the strip which locks it relative to the two halves (11) for the return channel (5). Two runner rods at the sides of the strip support the balls (3) which are separated by plastics separators (4), made of a material with a low coefficient of friction. Elastomer elements (26,27) provide a good joint for the sections.
Patent DE-3027585-A1 (DE)
Title: Weaving machine weft feed - uses conical drums to give constant tension without yarn damage
Inventor: SCHEFFEL WALTER
IPC: D03D47/34
Filed: 1980-07-21
Abstract: The conical drums (1,2) to draw off the weft yarn from fixed spools, for a loom, have a mantle (3,4) in a linear or stepped cone. At least two drums (1,2) act together, without contact between them. The yarn guides (7,10,11) are located between the drums (1,2), and slide in the direction of the drum axes (5,6). The outermost mantles of the two drums (1,2) are positioned to be approx. parallel to each other or, if three drums are employed, the line of the furthest mantle from the other two drum mantles lies parallel to a theoretical cylinder round all the drums. The angle of the axes (5,6) for the conical drums (1,2) can be adjusted, with linkage shafts or cogs to drive the drums. Or a friction drive roller can be applied to the drum mantle. The design allows constant yarn tension to be achieved, at an even friction value, without internal yarn stretch and distortion.
Patent DE-3027609-A1 (DE)
Title: Double section hot water tank - has separately heated upper and lower cylinders connected by flanged joint incorporating divider plate
Inventor: DEUCHERT KLAUS ING GRAD
IPC: F24D11/02
Filed: 1980-07-21
Abstract: The hot water tank connected to a heat pump and to a boiler consists of an upper tank and a lower tank. Both tanks are joined by a smaller diameter flanged connection which incorporates a separator plate. This forms a vertical arrangement, with both tanks enclosed by a common housing, the lower tank forming a buffer supply. Heat is supplied to the upper tank by a ribbed heat exchanger coil connected to the heat pump and boiler, and they also supply heat directly to the lower tank.
Patent DE-3032371-A1 (DE)
Title: Respiratory protective helmet with visor - has flowmeter inside helmet near outlet end of induced air supply tube
Inventor: KRUEGER EDMUND
IPC: A42B3/04
Filed: 1980-08-28
Abstract: The respiratory helmet contains an electric ventilator with a fan and a filter in the respiratory air flow. A warning signal is delivered if the minimum supply output of the fan is not attained. Inside the helmet (1) is mounted a flowmeter (4) near the outlet end (3) of the air supply tube (2) from the fan. Pref. the flowmeter is in the form of an L-shaped tube which acts as a pilot tube. Its vertical shank contains a ball of light material, the outside of the shank having a volume scale. Between the scale divisions are coloured surfaces. The bore of the horizontal shank is directed against the respiration air flow. The bores of the shanks are covered by screens. Alternately the flowmeter may consist of a ball suspended on a thread. Sections of the deviation surfaces of this suspension against the wall of the air supply tube serve as an indication of the supply volume.
Patent DE-3033413-A1 (DE)
Title: Heat exchanger with stack of dimpled plates - has sealed engagement of backwardly folded edge flanges
Inventor: MCNAB JOHN LESLIE GRAHAM
IPC: F28D9/00
Filed: 1980-09-05
Abstract: A heat exchanger has a stack of parallel metal or plastic plates with integrally formed spacer projections on one or both faces which in contact with adjacent plates define intermediate flow spaces. At least every second plate has lateral flanges bent back in the same direction and engaging similar flanges on an adjacent plate to form alternating fluid passages at an angle, pref. 90 deg., to each other. The bent back flanges lie against spacer projections of reduced height. A method is also claimed, wherein plates made from strip are given projecting dimples on one side and their edges are then flanged in forming dies before stacking, with an intermediate sealing medium. The stack corners are held by profiled angle bars. Used for air-heating or cooling units, of simple and quick construction. Adequate edge sealing is provided without welding or adhesives. The projections help provide turbulent flow to improve heat transfer.
Patent DE-3038267-A1 (DE)
Title: Heat-absorber with parallel pipes - has sheet metal strips woven transversely between pipes in alternating patterns
Inventor: ZINK WALTER
IPC: F24S10/75
Filed: 1980-10-10
Abstract: The absorber has a number of parallel pipes joined to sheet-metal strips forming collector plates for the heat from the environment. The strips (6,7) run at right angles to the pipes (3), between which they are passed in an undulating pattern, so that the pipes are joined to them on alternate sides. Adjacent strips are woven in opposite patterns between the pipes. Strips and pipes can be joined together by heating the whole assembly, or alternatively by soldering or by dipping in a zinc bath, both pipes and strips being of steel. The pipes can be flattened where they bear against the strips, to increase the area of contact.
Patent DE-3038529-A1 (DE)
Title: Sanding block with separate handle - locked into block by press studs esp. of polyethylene
Inventor: POSCHMANN GERHARD
IPC: E04F21/06
Filed: 1980-10-11
Abstract: A smoothing tool, esp. sanding block, is pref. of plastics and has a handle connected to the plate of the block by mutually engaging and locking elements. In a pref. embodiment, a press stud type arrangement is used, with a conically tapering stud at each end of the handle, engaging into a conical recess with back-cut annular seating in the back of the plate. Pref. materials for the handle and plate are rigid polyurethane foam, opt. of different types. The detent or press stud elements are pref. of polyethylene.
Patent DE-3041693-A1 (DE)
Title: Light for bicycle with functioning indication - provides main light beam and two secondary beams directed to each side and extra beam directed upwards
Inventor: SASSMANNSHAUSEN KNUT OTTO
IPC: B62J6/04
Filed: 1980-11-05
Abstract: The light has a concave reflector and a lamp on the reflectors axis. The light radiates a main beam along the reflector's main axis out through a main outlet window. Two secondary outlet windows are provided in the light's casing and produce one or two laterally-directed light beams at right angles to the main beam. A third secondary light beam is radiated vertically upwards and occupies a solid angle centred on a vertical axis. The reflector has an appropriate hole to allow the passage of this vertical light beam. The light is visible from both sides and from above as well as from the rear (if a rear light) or the front (if a front light). The light is also simple to fabricate. The light beam emerging from the top of the light allows the rider to check easily whether the light is on.
Patent DE-3046179-A1 (DE)
Title: Concentric filters in casing for fuel supply - to internal combustion engine
Inventor: KRUEGER HEINZ
IPC: B01D29/15
Filed: 1980-12-08
Abstract: A filter for the fuel supplied to an IC engine contains two concentric cylindrical filter bodies, each supported against a cylindrical perforated plate, with these plates facing each other across a cylindrical gap between the bodies. Incoming fuel is divided into a first stream passing from the external filter casing to the inside of the outer filter, and from an inner chamber adjacent the unit axis, radially outwards to the outside of the inner filter. The two streams combine in the cylindrical gap for delivery to the engine. Fuel passes to the inner chamber through slots in a shaped disc surrounding the base of an axial support rod, and leaves the cylindrical gap through a similar disc near the top of the rod. Suitable for stationary engines, road vehicle and marine engines. The effective doubling of filter surface increases filter service life without increasing all-over size.
Patent DE-3101229-A1 (DE)
Title: Process for the selective polymerisation of butadiene from C4 fractions
Inventor: ANTON ELISABETH DIPL CHEM DR
IPC: C08C19/44
Filed: 1981-01-16
Abstract: The invention relates to a process for the polymerisation of 1,3-butadiene using the C4 fraction obtained from the pyrolysis of crude oil by means of stable, soluble lithium initiators, where the polymerisation of the butadiene is carried out from the mixture without prior removal of the other constituents of the C4 cut (1-butene, cis- and trans-2-butene, n- and i-butane, i-butene) and without incorporation thereof into the polymer. It has been found that butadiene can be converted selectively into polybutadienes and into copolymers on addition of suitable anionically polymerisable monomers. The molecular weights can be adjusted in a targeted manner. Addition of suitable agents allows products containing terminal functional groups to be prepared.
Patent DE-3102271-A1 (DE)
Title: Protective device
IPC: E06B9/01
Filed: 1981-01-24
Abstract: The invention relates to a device for protecting an air-passage orifice (1). It comprises a plurality of steel tubes (2, 3) which are arranged in the longitudinal direction of the air-passage orifice (1) and which bear against one another so as to fill the cross-section of the air-passage orifice (1). The steel tubes (2, 3) are combined in bundles in at least two zones (Rz1 and Rz2) offset relative to one another in the longitudinal direction of the air-passage orifice (1). The device achieves a high resistance-time value against a wide variety of break-in means. A sufficiently large air-passage region for the supply and discharge of air along with a low flow resistance, is nevertheless provided. As a result of the division in two zones (Rz1 and Rz2) which are offset relative to one another and which are mutually separated from one another by transversely directed lattice-like or grid-like intermediate walls (4, 5), the resistance-time value is increased even further. Even if one zone (Rz1 or Rz2) is damaged, the other zone still affords sufficient protection for the period of time within which security guards are alerted. The zones (Rz1 and Rz2) can be spaced from one another by means of a slatted-grid zone (L2) having inclined guide elements (6).   <IMAGE>
Patent DE-3111327-A1 (DE)
Title: Fuel injection valve
Inventor: MASAAKI SAITO
IPC: F02M51/08
Filed: 1981-03-23
Abstract: A fuel injection valve (20) comprises a main magnet pole (22), which is fixed inside a housing and is provided with a solenoid coil (50), which is wound thereon, a valve seat part (30), which is fixed to the housing in such a way that it is arranged opposite the tip section (22a) of the main magnet pole, a spherical valve body (32), which is arranged inside a valve chamber, which is to be filled with fuel and is defined between the tip section of the main magnet pole and the valve seat part, and an adapter (42), which is fixed between the main magnet pole and the housing in order to ensure local co-ordination between these, thereby reliably achieving arrangement and centring of the main magnet pole. <IMAGE>
Patent DE-3113158-A1 (DE)
Title: Process for preparing acicular goethite
Inventor: HOMABATA TOSHIHIRO
IPC: C01G49/06
Filed: 1981-04-01
Abstract: The process for preparing acicular (needle-shaped) goethite involves admixing an iron salt solution with alkali and subjecting the solution to an oxidation reaction. In order to obtain an acicular goethite of improved shape and structure, the solution, after the addition of the alkali and before carrying out the oxidation reaction, is aged for several hours. Preferably, an oxidant is added as a preliminary measure, before the solution is aged. <IMAGE>
Patent DE-3115990-A1 (DE)
Title: Longitudinally waterproof cable
Inventor: HEINZ WOLFGANG
IPC: H01B7/288
Filed: 1981-04-15
Abstract: In order likewise to make the gap which frequently forms between a cable core (10) and the sheath (not shown here) surrounding it longitudinally waterproof, a substance which can expand and is in the form of an expanding fleece is arranged around the core. The quantity of the relatively expensive expanding fleece is kept low by fitting it to the core only in the form of strips, in the form of two crossed-over helixes (13, 14), so that the parts of the core which are not covered are divided into chambers (15) which are separated from one another such that they are impermeable to fluid. <IMAGE>
Patent DE-3116279-A1 (DE)
Title: Rocking device for gymnastic movement of the human body
Inventor: LIERENFELD FRANZ
IPC: A47C3/02
Filed: 1981-04-24
Abstract: The subject matter of the invention is a rocking device, in which the human body is stretched out in a lying position and subjected to a rocking movement counter to the effect of a restoring force, in the manner of an expander, in sequence. In this case, the arrangement is such that knocks or impacts cannot occur during rocking because the expanders operate in pairs in a linear arrangement in opposite directions to one another. The effort during rocking is increased due to the expander and thus a better gymnastic effect is achieved. The number of expanders is selectable. <IMAGE>
Patent DE-3118277-A1 (DE)
Title: Curtain wall with a high degree of heat insulation
Inventor: CONRAD VOLKER
IPC: E04F13/08
Filed: 1981-05-08
Abstract: Curtain wall with a high degree of heat insulation, requirements of a structural and architectonic nature being fulfilled in a largely cost-saving manner, characterised in that the relatively soft material of the heat-insulating shell can assume, in addition to heat insulation, the function of the substructure for the shell exposed to weathering in that force transfer is distributed over larger surface areas in conjunction with the design of the shell exposed to weathering, heat-insulating shell and facade-securing means.