baber/WOPTO huggingface dataset:
Patent GB-1517447-A (GB)
Title: Injection needle holder device
IPC: A61M5/158
Filed: 1976-08-20
Abstract: 1517447 Surgical injection appliances SOJI ISHIKAWA 20 Aug 1976 [23 Aug 1975 11 March 1976] 34708/76 Heading A5R [Also in Division B1] A needle holder for a medical injector comprises a generally tubular member 28 having a bore portion 32 which receives a needle 15 a filter element 35 having its peripheral edge in contact with the inner surface of a bore portion 31 of member 28, and a filter retaining element 36 formed with sector shaped open spaces and a conical projection, whereby the filter element 35 is held between retaining element 36 and inwardly radially directed projections 34 on the wall of bore portion 31. In use liquid passes from bore portion 31 through filter element 35 and into needle 15, the sector shaped spaces and conical projection of filter retaining element 36 preventing turbulent flow in the region of the filter. The conical projection of filter retaining element 36 may be provided with longitudinal grooves, Fig. 6B (not shown). In an alternative embodiment Figs. 9 and 10 (not shown), the filter element is held between two filter retaining elements similar to element 36 in Fig. 4.
Patent GB-632491-A (GB)
Title: Improvements in systems including at least one gear pump
IPC: F04C11/00
Filed: 1947-12-30
Abstract: 632,491. Gear-wheel pumps. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE (S.I.G.M.A.). Dec. 30, 1947, No. 34737. Convention date, April 18, 1945. [Class 110(ii)] In a gear pump which may be used for handling solutions of artificial fibres and comprising superposed plates secured to a pump support, the adjoining surfaces of the body and support being provided with registering inlet and outflow orifices, 8, 9, 10 and 11, the surface of the support 5 is provided with a raised or projecting portion 5a for contacting the pump in order to limit the area of contact between this surface and the adjoining face of the pump body. The fixing screws 13 are located within the raised portion. The pump comprises a middle plate 2 in which the gears are housed, and two closure plates 1 and 3, the three plates being clamped together by means of screws 12 to form the pump body. The thickness of the closure plate 3 is greater than that of the plate 1 for the purpose of preventing leakage through the hole for the driving shaft 6, and eliminating the use of stuffing boxes or gaskets. The driving shaft 18 and the pump shaft 6 are formed with projections engaging grooves in a coupling element 15 which is freely rotatable in the cage 16 and is retained in an axial direction by the cover 17. The two grooves in this element are arranged at right angles to each other.
Patent GB-898096-A (GB)
Title: Improvements in or relating to apparatus for and methods of drawing semi-conductor rods from the melt
IPC: H01L29/04
Filed: 1959-10-14
Abstract: <PICT:0898096/III/1> The diameter of a rod 1 of semi-conductor material, e.g. germanium, drawn from a melt 5 is controlled by directing cold protective gas at a variable rate of flow from a plurality of nozzles 2 on to the molten neck 6 of the rod.  The gas may have a temperature of 10 DEG -12 DEG C.  The melt may have a temperature of 10 DEG C. above the m.p. of the semi-conductor material.
Patent GB-474326-A (GB)
Title: Portable cooking-stoves
IPC: F24C5/20
Filed: 1936-12-18
Abstract: 474,326. Portable stoves. LEHRE, F. Dec. 18, 1936, Nos. 34815 and 34816. Convention dates, Dec. 21, 1935 and Feb. 24, 1936. [Class 126] In a portable cooking-stove, a burner 5 attached to a liquid-fuel container 1 is enclosed in a jacket composed of two flaps 8, 9 pivotally connected to each other and to the burner frame so that, when opened, they form a support for the cooking utensil being heated. The part 12 of the frame is slidable on the part carrying the burner and attached to the container 1, so that the flap can be slid away from the container and burner. The flaps 8, 9 are each semi-cylindrical. A bracket 11 on the fuel container may form part of the utensil support. A protecting disc 14 . between the fuel container and burner may be provided.
Patent GB-1069362-A (GB)
Title: Nuclear reactor
IPC: G21C3/32
Filed: 1964-08-25
Abstract: 1,069,362. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 25, 1964 [Nov. 15, 1963], No. 34832/64. Heading G6C. In a pressurized water reactor the core is formed of fissionable rod assemblies each of which is surrounded by a fertile blanket. Each assembly is subcritical in the absence of its blanket and there is no neutron coupling between the individual assemblies. During operation the fissionable material in the assemblies is consumed and this is compensated by the fission of the fuel formed, during reactor operation in the fertile blankets by the neutron flux from the associated assemblies. Each assembly consists of a central cylindrical section and an outer annular section. The former is movable axially within the latter to provide reactivity control. Each fissionable assembly contains some fertile material and this is distributed so that neutron flux from the fission material to the blanket fertile material is a function of the central section displacement. A safety element is insertable between the sections of each assembly. The coolant flow through the control sections of the assemblies is separate from that through the remainder of the core.
Patent GB-778287-A (GB)
Title: Improvements in or relating to electrical clamping screws
Inventor: FIELD ARTHUR JAMES
IPC: H01R4/36
Filed: 1953-09-01
Abstract: 778,287. Binding-posts ; terminal boards. LUDTKE, H. T. Dec. 1, 1954 [Sept. 1, 1953; Dec. 30, 1953], Nos. 34866/54 and 36220/53. Divided out of 778,285. Drawings to Specification. Class 38 (1). The Specification describes terminal blocks identical with those described in Specification 778,285 but the claims differ.
Patent GB-906283-A (GB)
Title: Improvements in or relating to electrical terminal tabs or prongs
IPC: H01H1/58
Filed: 1958-10-30
Abstract: 906,283. Two-part couplings. INTERNATIONAL REGISTER CO. Oct. 30, 1958 [June 11, 1958], No. 34871/58. Class 38 (1). A male terminal tab or prong comprises sheet metal shaped with one or more raised portions having a flat surface extending in the direction of the length of the prong for frictional engagement with a corresponding flat portion of a standard female terminal connector, said surface having a detent engaging a corresponding abutment on the female connector. Figs. 2 and 5 show the male terminal tab 43 on a metal contact blade 12 for a switch, the tab being rippled to form transverse grooves 48, 48<SP>1</SP>, and raised lands 45, 45<SP>1</SP>. The anchoring portion 25 of blade 12 is shown mounted in the base panel 11 of the switch. The ripples enable the blade 12 to fit the same connector as the thicker blade 12a, the detent 34 on the connector engaging a shoulder 62 formed by striking metal from the land 45 to retain the connector on the tab as shown in Fig. 8. A recess 65 is formed on the opposite side of the terminal to give an alternative locking means if the terminal is inserted into the connector in an inverted position (Fig. 9, not shown). Chamfered end 60 helps, with guide surface 61, in the insertion of the male terminal into the connector. Two or three tabs 43 may be formed integral with blade 12 (Figs. 6 and 7, not shown). In another application each limb of a U-shaped neutral terminal may be formed similarly to a tab 43 (Figs. 11, 12, 13, not shown) or may have a modified depression and raised projection pattern such that the grooves and lands are concentric or oblique (Figs. 14, 15, 16, not shown) for frictional locking engagement in a standard female connector. Specification 906,284 is referred to.
Patent GB-511911-A (GB)
Title: Improvements in the trigger mechanism of automatic firearms
IPC: F41A19/33
Filed: 1938-11-30
Abstract: 511,911. Automatic guns. SCHMEISSER, H. Nov. 30, 1938, No. 34894. [Class 92 (ii)] A trigger mechanism for enabling an automatic firearm to be adapted for single-shot firing comprises a trigger rod 1 having a pivoted pawl 4 through which the movement of the trigger 9 is transmitted to the firing mechanism (not shown), means being provided positively to prevent displacement of the pawl into the singleshot position while the trigger is pressed. The pawl is engageable by a slidable or rotatable pin 5, having a cut-away part 8, and is recessed on its under-side, the pawl having a rib 12 which slides into a fixed slot 11 when the pin 5 is in the position shown in Fig. 1, so as to give automatic firing as long as the trigger is pressed, and positively prevent displacement of the pawl into single-shot position. For single-shot firing the pin 8 is slid or rotated, so as to trip the pawl 4 from the trigger each time the trigger is pressed. In a modification, the end of the pawl 4 is stepped so as to be caught by the trigger and held down during automatic firing.
Patent GB-1479185-A (GB)
Title: Integrated circuits
IPC: H03K23/50
Filed: 1974-08-08
Abstract: 1479185 Transistor switching circuits SIEMENS AG 8 Aug 1974 [18 Sept 1973] 35054/74 Heading H3T A first circuit comprising a plurality of COSMOS stages provides a high level signal to an output MOS stage which in turn provides a low level signal to the input of a further circuit comprising an input stage which converts the low level signal to a high level signal which is applied to a further plurality of COSMOS stages. High level signals of 10V amplitude from the first COSMOS circuit are applied to a differential interface stage comprising inverter 125, 126 and source followers 127, 128 to produce pushpull outputs 129, 1210 of 1V amplitude. These signals are applied as inputs to a second stage comprising a bistable 133 clocked with a signal # on line 1337, the outputs from the bistable driving inverters 1381, 1382 and 1391, 1392 which convert the signals back to the 10V level  on output lines 1383, 1393 to be applied to the further COSMOS stages.
Patent GB-821153-A (GB)
Title: Street and like overhead lighting fittings
Inventor: HARTILL PHILIP
IPC: F21S8/08
Filed: 1956-11-16
Abstract: 821,153. Electric light fittings. REVO ELECTRIC CO. Ltd. Nov. 11, 1957 [Nov. 16, 1956], No. 35061/56. Class 75(4) A street or like overhead lighting fitting of the type for mounting on a substantially horizontal rigid arm, comprises a body part 3 for securing to the arm, a unit including a lamp holder and one or more reflectors 12, 14 hinged to the body part at 10 and having means for holding the unit at a desired angular setting, and a transparent or translucent cover 6 forming with the body part 3 an enclosure for the unit. The hinge 10 is supported by a U-shaped bracket 9 from the body part 3. The body part carries an arcuate strip having a slot or a series of holes through which passes a pin on the frame 13 supporting the lamp holder and reflectors. The cover 6 is hinged at one end to the body part, the other end being held by a clip and engages a gasket 7 carried by the body part to form a weatherproof enclosure.
Patent GB-656602-A (GB)
Title: Electroplating method and electrolyte
IPC: C25D3/02
Filed: 1947-12-31
Abstract: 656,602. Electrodeposition of metals. BAKER, E. W. (Poor & Co.). Dec. 31, 1947, No. 35114. [A Specification was laid open to inspection under Sect. 91 of the Acts on Feb. 10, 1949.] [Class 41] A process of electrodepositing metals from an alkaline aqueous cyanide plating solution comprises incorporating with the solution an alkaline-earth metal gluconate, for example calcium gluconate. Calcium gluconate may be used blended with barium hydroxide. Examples are given of solutions for use in the electrodeposition of copper, cadmium and zinc. A pulsating direct current voltage as specified in Specification 647,799 may be applied. The electrolyte may also contain lauryl sulphate and gum arabic. Reference has been directed by the Comptroller to Specification, 647,799.
Patent GB-619246-A (GB)
Title: Improvements relating to high frequency electrical power supply systems
IPC: H05B6/48
Filed: 1946-11-27
Abstract: 619,246. Supply. systems for high-frequency apparatus. LUDLOW, J. H., and METROPOLITAN VICKERS ELECTRICAL CO., Ltd. Nov. 27, 1946, No. 35185. [Class 38 (iv)] A high-frequency power supply system comprises a high-frequency generator 1 which supplies one at a time in the order demanded by the respective push-buttons 6a-6d, a plurality of consuming devices 3a-3d, e.g. dielectric heaters, which with their respective supply leads are each adjusted to an optimum value to ensure efficient operation of the generator. Selector switch 2 is rotated by a motor 4 controlled by the push-buttons through a timing device 5 set to meet the individual energy requirements of the respective heaters, and connected in the generator keying circuit 7 to also ensure that the generator is cut-out during the change-over. The device 5 also contains means to enable calls upon the generator to be stored until the latter is available to make the supply and may be of a type used in automatic telephony, whereby calls from the respective push-buttons are identified by an appropriate number of pulses, or comprise (Fig. 2, not shown) a paper tape which, after perforation by one of a number of solenoidoperated punches controlled by the respective push-buttons, is driven between contact bars which are connected together through the perforation and so operate the motor and generator. When calls are received faster than they can be dealt with, the paper, after perforation, loops between the punches and contact bars so that the generator, when available, can deal with them in the order in which they are initiated by the push-buttons.
Patent GB-1000390-A (GB)
Title: Process for the production of telomers from carbon tetrachloride and diallyl phthalate
IPC: C07F9/655
Filed: 1961-09-25
Abstract: Telomers are produced by reacting 1 molecular proportion of carbon tetrachloride with n molecular proportions of diallyl phthalate and, if desired, with m-1 molecular proportions of a compound CR1R2=CR3R4, the sum n+m - 1 being 2-20, and where R1-R4 are each hydrogen, halogen or an organic radical of 1-13 carbon atoms, Solvents and/or telomerization catalysts or actinic radiation may be employed. Specified co-taxogens are ethylene, propylene, butene, isobutylene, amylene, hexylene, butadiene, vinyl fluoride, fluoroprene, vinylidene fluoride, difluoroethylene, trifluoroethylene, tetrafluoroethylene, difluoromonochloroethylene, dichloromonofluoroethylene, trifluorochloroethylene, difluorodichloroethylene, perfluoropropene, perfluorobutene, vinyl chloride, vinylidene chloride, trichloroethylene, chloroprene, tetrachloroethylene, perchloropropene, vinyl methyl, ethyl and phenyl ethers, styrene, a -methylstyrene, ethyl, butyl and dodecyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile and corresponding derivatives of a -fluoroacrylic, a -chloroacrylic, crotonic, maleic or fumaric acid; monoepoxybutadiene and monoepoxy divinylpenzene. Specification 1,000,389 is referred to.ALSO:Telomers are produced by reacting 1 molecular proportion of carbon tetrachloride with n molecular proportions of diallyl phthalate and, if desired, with m - 1 molecular proportions of a compound CR1R2 = CR3R4, the sum n+m - 1 being 2-20, and where R1-R4 are each hydrogen, halogen or an organic radical of 1-13 carbon atoms.  Solvents and/or telomerization catalysts or actinic radiation may be employed.  Specified co-taxogens are ethylene, propylene, butene, isobutylene, amylene, hexylene, butadiene, vinyl fluoride, fluoroprene, vinylidene fluoride, difluoroethylene, trifluoroethylene, tetrafluoroethylene, difluoromonochloroethylene, dichloromonofluoro ethylene, trifluorochloroethylene, difluorodichloroethylene, perfluoropropene, perfluorobutene, vinyl chloride, vinylidene chloride, trichloroethylene, chloroprene, tetrachloroethylene, perchloropropene, vinyl methyl, ethyl and phenyl ethers, styrene, a -methylstyrene, ethyl, butyl and dodecyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile and corresponding derivatives of a -fluoroacrylic, a -chloroacrylic, crotonic, maleic or fumaric acid; monoepoxybutadiene and monoepoxy divinylbenzene. Specification 1,000,389 is referred to.
Patent GB-1165036-A (GB)
Title: Modified Polyoxymethylenes
IPC: C08G2/18
Filed: 1967-08-02
Abstract: 1,165,036. Modified polyoxymethylenes. E.I. DU PONT DE NEMOURS & CO. 2 Aug., 1967 [2 Aug., 1966], No. 35416/67. Addition to 1,103,730. Heading C3P. A process for preparing a modified polyoxymethylene, i.e. a polymer containing -OCH 2 - groups and also incorporated groups derived from the modifying agent, comprising reacting at temperatures of 0‹ to 200‹ C. in an acidic reaction medium a polyoxymethylene having a number average molecular weight of at least 10,000 with one or more formals of formula where R 1 , R 2  are hydrogen or C 1-3  alkyl, R 2  may be C 6-10  aryl or aralkyl when R 1  is hydrogen, n is 1 or 2, and/or where R 3  is phenyl, -(CH 2 ) m CN, -(CH 2 ) m  COOR, or hydrogen, m is 0 to 3, R is C 1-4  alkyl, R 6  is hydrogen or, when R 3  is hydrogen, R 6  is phenyl, -(CH 2 ) m CN or -(CH 2 ) m COOR, and/ or where R 7  is hydrogen or C 1-4  alkyl, and R 8  is -(CH 2 ) m CN or -(CH 2 ) m COOR. Unreacted polyoxymethylene may be depolymerized and removed by the use of caustic alkali or a strong amine, suitably in the presence of an alcohol. The acidic medium for the modifying process may be supplied by a Lewis acid or its oxonium salt, e.g. PF 5 , BF 3 . In the examples, polyoxymethylenes are treated with the following compounds, which are incorporated into the main chain of the polymer by the process: cishexahydrobenzo - 1,3 - dioxolan, cis- and transhexahydrobenzo - 1,3 - dioxan, trans - hexahydrobenzotrioxepan, 4 - phenyl - 1,3 - dioxan, and 5-methyl-5-carboethoxy-1,3-dioxan.
Patent GB-339764-A (GB)
Title: Improvements relating to the manufacture of glass sheets
IPC: C03B13/12
Filed: 1929-11-20
Abstract: 339,764. Chance Bros. & Co., Ltd., and Forster, A. L. Nov. 20, 1929. Rolling.-Relates to the manufacture of glass sheets in which wire is embedded, either wine netting or ir:- dividual wires being used. The invention consists in the incorporation, with a glass sheet produced as a continuous strips, of discontinuous or separate webs or lengths of wire, preferably leaving narrow plain glass portions at the points where it is required to sever the glass. The wire is unwound from a roll a and is passed between the forming rolls b, by which a mass of glass c is formed into a continuous strip d. A pair of vertical guide channels f is arranged between the roll a and the rolls b, and the wire is fed into one or the other of these channels by feeding-rolls g, a pair of shears h being actuated from time to time to cut the wire into lengths. A movable guide i, associated with the shears h. diverts successive lengths of wire into separate channels f. Feeding rolls j may be arranged in each of the channels f, and a feeler bar or roller l swings in an opening in the channels f. The feeler is carried by a lever m, which is connected by a spring o to another lever n on the same pivot. In use, a length of wire mesh is fed into one of the channels f and is then fed to the glass by the feeding-rolls j, and during this operation the feeler l bears against one side of the wire. Meanwhile, wire is being fed into the other channel f and when the proper length has been delivered, the wire is cut off by the shears p and the movable guide i is then swung over to the first channel f. As soon as the first length of wire has passed the feeler l, the lever m. is drawn over by the spring o, starts the mechanism for feeding the second length of wire, and stops the rollers j which have fed the first length. The lever n is now moved from the position 5 to the position 6, and this brings the feeler l into contact with the second length of wire, and the cycle of operations is repeated. The wire may be fed in previously prepared lengths instead of being coiled on a roll.
Patent GB-424529-A (GB)
Title: Improvements in packing for fragile articles
IPC: B65D85/30
Filed: 1933-12-16
Abstract: 424,529. Packing fragile articles. KOPPELMAN, M., 255, Eastern Parkway, Brooklyn, New York, U.S.A. Dec. 16, 1933, No. 35484. Convention date, April 11. [Class 94 (ii)] A container for bottles &c., has curved corrugated walls and is made by bending up a longitudinally curved corrugated sheet, Fig. 2, and stitching or otherwise joining the edges. The corrugations may be extended at one or both ends 4, 6, 8, 9. The sheet may be made by the pulp-suction process. The container contracts resiliently to grip the article.
Patent GB-343570-A (GB)
Title: Process for the manufacture of aromatic n-dialkylaminoalkylamino-aldehydes and derivatives thereof
IPC: C07C47/52
Filed: 1929-11-21
Abstract: Aromatic N-dialkylaminoalkylamino-aldehydes are prepared by (1) interaction of an N-dialkylaminoalkylated aromatic amine having a free p-position with a formylamino compound of the formula <FORM:0343570/IV/1> , in which X1 and X2 represent alkyl, aralkyl or aryl groups, in the presence of a phosphorus halide or oxyhalide as condensing agent; (2) converting an aromatic N-dialkylaminoalkylamine, possessing a free p-position and in which the nitrogen atom attached to the nucleus is only monosubstituted, into its N-formyl compound and effecting re-arrangement of the latter by means of a phosphorus halide or oxyhalide.  The reaction may be effected in the presence of an indifferent solvent.  According to the Examples, (1) N-diethylaminoethyl-methyl-p-aminobenzaldehyde is obtained by condensing N-diethylaminoethyl-methylaniline with N-formylmethylaniline in the presence of phosphorus oxychloride or pentachloride; in the same way, N-diethylaminoethyl-ethyl-p-aminobenzaldehyde is prepared from N-diethylaminoethyl-ethylaniline, N-diethylaminoethyl-methyl-p-amino-m-tolylaldehyde from N-diethylaminoethylmethyl-o-toluidine, N - bis - diethylaminoethyl - p - aminobenzaldehyde from N-bis-diethylaminoethylaniline, and N-piperidinoethyl-methyl-p-aminobenzaldehyde from N-piperidinoethyl-methylaniline; (2) N-diethylaminoethyl - p - aminobenzaldehyde is prepared by treating N-diethylaminoethylaniline with formic acid and heating the resulting N-formyl derivative with phosphorus oxychloride.  Aromatic N - dialkylaminoalkylamines.-N-Diethylaminoethyl-ethylaniline, N-diethylaminoethylmethyl-o-toluidine and N-bis-diethylaminoethylaniline are prepared from the corresponding amine by treatment with diethylaminoethyl halides or the sulphonic ester of diethylaminoethyl alcohol (see Specification 301,401, [Class 2 (iii), Dyes &c.]. N-Piperidinoethyl-methylaniline is obtained by interaction of N-methylaniline and piperidinoethyl chloride.
Patent GB-336847-A (GB)
Title: Improvements in or relating to bread slicing machines
IPC: B26D1/52
Filed: 1929-11-22
Abstract: 336,847. Mac-Roh Sales & Manufacturing Co., (Assignees of Rohwedder, O. F.). Nov. 26, 1928, [Convention date]. Inverted harrow endless-chain conveyers.-A loaf fed forward by an endless band conveyer 11 is cut into slices in a single operation by a number of band cutters 47, the cutting edges of which lie in the same vertical plane and adjacent members of which move in opposite directions. The cut slices are then carried away by a conveyer 11<1> similar to the conveyer 11 and may be conveyed to a wrapping machine. The machine is driven from a motor 24 that drives the band cutter actuating shaft 64 at a high rate of speed through gears 68, 67 and the feeding and delivering conveyers at a lower rate through gears 17, 16. The conveyers are provided with transverse members 25 provided with slots in which projecting fingers 26 to engage the loaves are adjustably secured by a pressure bar 28 clamped by screws 27. Side belts 10 retain the loaves on the conveyer.