baber/WOPTO huggingface dataset:
Patent GB-1253557-A (GB)
Title: Improvements in punching presses
IPC: B21D28/12
Filed: 1969-02-19
Abstract: 1,253,557. Punching; strippers. C. BEHRENS A.G. 19 Feb., 1969 [24 Feb., 1968], No. 8899/69. Heading B3W. In a crank-operated punch press the crankshaft 4 also actuates a stripper and hold-down mechanism through cams 15 and energyabsorbing resilient means 28 which during a punching operation are compressed after the stripper etc. mechanism has contacted a workpiece. The stripper mechanism comprises a disc 8 supporting a stripper 14 and connected to guides 22, springs 12 maintaining the disc in its rest position against the underside of the punch carrier 1, which as shown is a rotary multiple punch carrier. Each cam 15 bears on a follower roller 35 supported by a forked pin 36 which is mounted in a yoke 37 and includes a shank 36<SP>1</SP> which is slidable in a bush 38. The bushes 38 form part of a ram casing 39 which also supports the crank-shaft 4. Spaced from the yokes 37 by means of bolts 13 is a frame 40 and located between the yoke and the frame are the resilient means 28 in the form of rubber springs 11. During a punching operation the cams 15 cause the frame 40 to move downwardly ahead of the ram 7 and apply thrust to the stripper disc 8 through pillars 22 until the stripper 14 contacts a workpiece. Further downward movement causes the springs 11 to be compressed. During the upward stroke of the press the cams 15 cause the pressure to be removed from the springs 11 to allow the springs 12 to raise the disc 8 only after the ram 7 has raised the punch 5. Reference has been directed by the Comptroller to Specification 950,807.
Patent GB-1361350-A (GB)
Title: High voltage capacitors
IPC: H01G4/30
Filed: 1972-02-28
Abstract: 1361350 Capacitors MURATA MFG CO Ltd 28 Feb 1972 [2 March 1971 (2)] 9003/72 Heading H1M  A capacitor comprises a monolithic body formed from two or more ceramic or glassy members, with two electrodes disposed one on each of two opposite end faces of the body, and a further electrode or electrodes embedded within the body parallel to the first electrodes, the periphery of the embedded electrodes being spaced inwardly from the periphery of the ceramic body. As shown, in Fig. 2, internal electrode 60, which may be metal foil, e.g. platinum or palladium, or a semi-conductive powder, e.g. MnO-CuO-CoO mixture or Mn-Zn ferrite, is sandwiched between green ceramic members 10a, 10b, e.g. BaTiO 3  or TiO 2 , the assembly is consolidated by firing to form body 10, silver or silver alloy outer electrodes 20, 30 are applied, the assembly is fired again at a somewhat lower temperature, leads 40, 50 are soldered to electrodes 20, 30 and the assembly encapsulated, e.g. with enamel 70. Members 10a, 10b may be recessed (Fig. 3, not shown). In an embodiment utilizing three green ceramic members sandwiching two internal electrodes (Fig. 4a, not shown) the middle member has a lower dielectric constant than that of the other two, increasing the proportion of the divided voltage of the internal electrodes. In a modification of this arrangement (Fig. 8, not shown) the outer members are of borosilicate or sodium glass. The arrangement illustrated in Fig. 5, utilizes four ceramic members, the outer ones 13, 14 being thinner than the inner ones 15, 16 so that sandwiched electrodes 63, 65 are close to external electrodes 20, 30 to provide the desired potential distribution. Electrode 64 is optional in this arrangement.
Patent GB-747986-A (GB)
Title: Improvements in or relating to hinge connections in swinging arm racks
Inventor: SANDFORD ROY SELDEN
IPC: A47K10/10
Filed: 1954-03-27
Abstract: 747,986. Towel rails. AUTOYRE CO. March 27, 1954, No. 9028/54. Class 52(5). [Also in Group XXV] A swinging towel rail 9 is connected to a wall bracket 4 by a friction hinge comprising a tubular socket 5 carried by the bracket, a hinge pin 10 extending at right angles from the arm, and a bushing 11 of resilient plastics material interposed between the pin and socket, the bushing being under radial compression and being in gripping or other anchoring engagement at one end with either the pin or the socket. The bushing is preferably cut from extruded polyethylene tubing. It is initially shorter than the pin and its end grips a groove 14 in the pin when it is drawn on to the latter. The bushing and pin are then inserted into the socket, when the bushing stretches to cover the pin. A flat surface 12 on the rail bears against the upper end of the socket, and the lower part of the pin bears in a reduced end bore 7 in the socket. A locking ring 19 is fitted on the end of the pin. In a modification the groove 14 is omitted and the upper end of the bushing is formed with a flange which seats in a counterbore provided at the upper end of the socket. The rail is of square cross section with concave sides. In forming the hinge pin, the rail is held in bending dies in such a manner as to form a bulge of metal which is then machined off to provide the surface 12.
Patent GB-127411-A (GB)
Title: Improvements in or relating to Metal Casks, Barrels, Kegs or similar Containers.
Inventor: MITCHELL WALTER ASHBY
IPC: A61G17/00
Filed: 1918-05-31
Abstract: 127,411. Mitchell, W. A. May 31, 1918. Metal casks; heads.-The flanged ends C, Fig. 1, of a metal cask or other container and the chimbs B of the body A are welded together and swaged to produce corrugations or beadings E, Fig. 3, which protect the welded joints and form strong resilient ends.
Patent GB-469990-A (GB)
Title: Improvements in and relating to bow collectors
IPC: B60L5/20
Filed: 1937-03-30
Abstract: 469,990. Bow collectors for electric vehicles. SIEMENS - PLANIAWERKE AKT.-GES. FUR , KOHLEFABRIKATE. March 30, 1937, No. 9092. Convention date, March 28, 1936. [Class 104 (iii)] The carbon 2 of a bow collector is attached to its initial carrier 1 by a layer of solder 4 - between the carrier and the roughened, coppered surface 3 of the carbon. The carrier may be of tubular or T-section, and the carbon may consist of two rows of blocks 11, 12 united to metal carriers 13, 14 as above described, the carriers being flexibly connected by a wire &c. 17 passing through lugs 15, 16 on the carriers.
Patent GB-809202-A (GB)
Title: Improvements relating to the manufacture of windows
Inventor: RUSHMERE DOUGLAS GEORGE
IPC: B61D25/00
Filed: 1956-03-23
Abstract: 809,202. Windows. RAWLINGS MANUFACTURING CO. Ltd. March 22, 1957 [March 23, 1956], No. 9112/56. Class 20(3) [Also in Group XXV] A rectangular metal frame for a glass window of the kind in which the complete window space is divided horizontally by a cross bar to provide spaces for upper and lower glass panes is characterized in that the complete frame comprises two components, each formed from a U-frame having mitred ends which are united to the mitred ends of a cross bar by an electric flash welding process, the cross bars being secured together, back-to-back, to form the complete frame. As shown cross bars B<SP>1</SP>, B<SP>2</SP> having mitred ends are secured at C, by means of electric flash welding, to the mitred ends respectively of U- frame members A<SP>1</SP>, A<SP>2</SP>, the component cross bars B<SP>1</SP>, B<SP>2</SP> then being rigidly secured, back-to-back, e.g. by riveting, to form a single cross bar in a unitary frame. A rubber strip D is interposed between the adjoining, outer, edges of the united bars B<SP>1</SP>, B<SP>2</SP>. A fixed glass pane E is mounted within the lower component frame A<SP>2</SP>, B<SP>2</SP>, the upper component frame B<SP>1</SP>, B<SP>2</SP> accommodating the fixed outer and two inner sliding panes. The window may be glazed with fixed upper and lower panes or with a fixed upper pane and a double glazed lower component. Means for latching the meeting edges of the sliding panes comprises a finger piece H which is fixed to the inner stile on one of the panels and has a detent H<SP>1</SP> for engagement by a spring loaded claw J<SP>1</SP> which is pivoted on a finger piece J attached to a corresponding stile on the other sliding pane. The pieces H, J are preferably in the form of bars which extend the full height of the upper component frame. A drain tube, not shown, carries off any moisture collecting on the bottom of the lower component frame A<SP>2</SP>, B<SP>2</SP>.
Patent GB-1333696-A (GB)
Title: Hydraulic brake actuator for a brake mechanism such as a disc brake
IPC: F16D65/18
Filed: 1972-02-28
Abstract: 1333696 Hydraulic brake actuator SOC ANON DBA 28 Feb 1972 [19 March 1971] 9126/72 Heading F2F An hydraulic brake actuator 10 shown as associated with a disc brake pad 12 is of the type comprising a main piston 22 slidable in a bore 16 of a housing 14 defining therein a main fluid chamber 26 supplied through a main part 28 at a first pressure and an automatic wear adjuster device 34 including two elements 38, 40, co-operating and defining between the housing 14 and main piston 22 a non-retractable abutting connection in order to limit the return stroke of the piston to a predetermined value when the first pressure is relieved; it is characterized in that the main piston is connected to pad 12 through the intermediary of a secondary piston 52 slidable in a bore 50 in the main piston 22 and defining therein a secondary fluid chamber 54 supplied through a secondary port 32, (and via, as shown, passages 56 in piston 22), at a secondary hydraulic pressure, the effective area of the face of the secondary piston 52 subjected to the secondary pressure being less than the effective area of the face of the main piston subjected to the first pressure. In operation, only a significant difference between the pressures in the main and secondary chambers causes relative movement between the pistons. Of the known wear adjusting device 34, element 38 is connected to piston 22 and is integral with a stem 36, while element 40 is threaded on element 38 and is located for co-operation with an annular thrust ball bearing 42 secured to piston 22. Belleville washers 44 urge the end of stem 36 against an element 46 eccentrically mounted on a shaft 48 which is rotated for mechanical actuation of the brake.
Patent GB-1411212-A (GB)
Title: Process for producing anhydrides of aromatic polycarboxylic acids
IPC: C07B61/00
Filed: 1974-02-28
Abstract: 1411212 Oxidation catalysts LABOFINA SA 28 Feb 1974 [4 May 1973] 9153/74 Heading B1E [Also in Division C2] A vanadium oxide catalyst is prepared by impregnating a refractory carrier with liquid vanadium oxychloride or oxybromide, hydrolysing the oxyhalide and then calcining the catalyst. The catalyst may also comprise a metal oxide promoter selected from the oxides of Ti, Sn, Mo, Ge, Cr, P or mixtures thereof which may be introduced into the catalyst by dissolving in the vanadium oxyhalide a soluble salt of the desired metal(s) which salt will easily give the desired metal oxide on hydrolysis, impregnating the refractory carrier with the solution, hydrolysing and calcining. The produced catalyst is used in the vapour phase oxidation of aromatic hydrocarbons.
Patent GB-231907-A (GB)
Title: A method of cutting to pieces or demolishing wrecked ships or the like
IPC: B23D45/00
Filed: 1925-04-07
Abstract: 231,907. Beck, A. E., (Elektrotrennmaschinen Ges.). April 7, 1925. Circular-saw machines.-Ships &c. are broken up by high-speed rotary friction discs e mounted on cranes so as to be traversed in both horizontal and vertical planes. An oxygen jet may be directed on to the cutting-zone.
Patent GB-1391932-A (GB)
Title: Bevel gear drive with circular-arc teeth
IPC: F16H55/08
Filed: 1972-03-14
Abstract: 1391932 Toothed gearing NAUCHNOISSLEDOVATELSKY AVTOMOBILNY I AVTOMOTORNY INSTITUT 14 March 1972 9219/72 Heading F2Q A drive comprises a level pinion mating with a level gear, the gear and pinion having circular arc teeth, the gear teeth crests being clear of the pinion pitch cone by a specified amount, and the gear and pinion addenda having ratios within specified ranges.
Patent GB-1033245-A (GB)
Title: Improvements in or relating to rolling body bearings
IPC: F16C33/66
Filed: 1964-03-05
Abstract: 1,033,245. Bearings. FAFNIR BEARING CO. March 5, 1964 [July 5, 1963], No. 9343/64. Heading F2A. The outer race 12 (Fig. 1, not shown) of a ball, or roller, bearing is provided with annular lubricating recesses or channels 20, 21 which are situated adjacent either side of the track 19 for the balls and shaped to direct lubricant on to the track by centrifugal action when the bearing is in operation. Further annular lubricating recesses 17, 18 may be formed in a cage 16. The bearing may be of the angular-contact type and include a cut-away portion 15 in the inner race 11. The recesses 20, 21 may have a profile in cross-section (Figs. 3, 4, not shown) which differs somewhat from that according to Fig. 1. The bearing may be modified to include a single lubricating recess adjacent the track 19.
Patent GB-786519-A (GB)
Title: Improvements in absorption refrigerating machines
Inventor: PAYNE CHARLES ALFRED
IPC: F25B15/02
Filed: 1955-03-31
Abstract: 786,519. Refrigerating systems. LOW TEMPERATURE DEVELOPMENTS, Ltd. June 29, 1956 [March 31, 1955], No. 9404/55. Class 29. The invention relates to continuous cycle absorption refrigeration systems in which the generator a and condenser c are maintained at a high pressure and the evaporator e and absorber f are maintained at a low pressure. According to the invention, strong liquor passes, through an inlet valve q, into a pump cylinder l and is displaced therefrom, through a delivery valve r, into a generator a by a piston l<1> in said pump cylinder, displaced by a piston k<1> in a power cylinder k and of larger effective area than said pump piston P, which is displaced by refrigerant vapour from, and under pressure reigning in, the generator a. The power and pump pistons are connected by a rod k<2> and are preferably double acting. The generator a has two float valves, hand i, governing respectively the release of weak liquor from the generator to the absorber f, and of high pressure vapour from the generator to the double acting power piston cylinder k. Valves n and o cause the vapour to flow to alternate sides of the piston k<1> and are controlled by the lost motion trip gear described in Specification 665,752. On leaving the power piston cylinder the vapour is led to the absorber. The inlet and outlet valves q<1>, q<2>, r<1>, r<2> to the pump cylinder l are operated by the high pressure refrigerant gas.
Patent GB-1399564-A (GB)
Title: Boron nitride abrasive grains
IPC: C04B35/626
Filed: 1973-02-26
Abstract: 1399564 Boron nitride SHOWA DENKO KK and NIPPON OILS & FATS CO Ltd 26 Feb 1973 [29 Feb 1972] 9438/73 Heading C1A [Also in Division C4]  Sintered abrasive grains consist of boron nitride having a particle diameter of 5 to 500 microns, an apparent density of 3À0 to 3À45, a Knopp scale hardness of at least 3,000 and a non-smooth surface, 55 to 100% by volume of the boron nitride consisting of boron nitride of the Wurtzite type, the grains being a sintered agglomerate of particles of boron nitride having a particle size of 0À05 to 1 micron, each particle being a polycrystal of boron nitride microcrystallites of size not more than 500Š. The material may be obtained by charging boron nitride powder, optionally containing a minor amount of sintering assistant such as a metal, for example, iron, copper, nickel or titanium or a ceramic substance such as titanium boride or titanium dioxide, into a cylinder, for example of copper through the centre of which is a rod possibly of iron. The cylinder may be surrounded by an explosive and one end of the explosive is detonated. The explosive used has a detonation velocity above 5,000 metres/second to generate pressure of at least 300 kilobars. After pulverising on a stamp mill or a bore mill grains of low concentration of the Wurtzite type boron nitride are removed by a sink and float process.
Patent GB-581168-A (GB)
Title: Radio wave systems for indicating the presence, range or location of an object
IPC: G01S13/18
Filed: 1941-07-28
Abstract: 581,168. Radiolocation. BUSH RADIO, Ltd., and HARRISON, W. H. July 28, 1941, No. 9573. [Class 40 (v)] A radio-wave system for indicating the presence, range, or location of an object by the reflection of waves therefrom comprises means for transmitting radio-wave signal impulses, a super-regenerator adapted for receiving a reflection of such impulse, and means operative to register little or no response to the reception of such reflected impulse during the time of low sensitivity of the super-regenerator, but substantial response if such reflected impulse is received at the time of greater sensitivity. A single-valve self-quenching super-regenerator 4, Fig. 1, is provided with a dipole autenna 5 and a reflector 6. The quench frequency is variable by means of a condenser 7. The super-regenerator serves as an impulse transmitter and also as a receiver, its cycle of operation comprising a negative resistance period, during which a train of radio-frequency oscillations is generated and transmitted and a positive resistance period, during which oscillations are quenched. This latter period is divided into two parts during which the arrangement functions as a receiver of low and high sensitivity respectively, the latter part being established just prior to the initiation of another and similar cycle. The quench frequency is adjusted by the condenser 7 until the period of greater sensitivity coincides with the reception of a reflector signal corresponding to the transmitter pulse, as indicated by phones 8. The condenser 7 is provided with a scale 9 calibrated in terms of distance. Instead of a combined transmitter and receiver a separate radio-wave transmitter may be provided for co-operation with a superregenerative receiver, the timing of the initiation of the periodic cycles of operation of the latter being controlled by impulses from the transmitter. In a modification, Fig. 2, a combined transmitter and receiver as shown in Fig. 1 has a neon lamp 9 in place of the phones. The'condenser 10 is continuously rotated at 10 to 20 times a second, together with a spirally slotted stroboscopic disc 11 by a motor 12. A scale 13 is calibrated in terms of distance.
Patent GB-371572-A (GB)
Title: Improvements in rotary filters
IPC: B01D33/00
Filed: 1931-03-30
Abstract: 371,572. Filters. GILL, H. A., 51, Chancery Lane, London.-(Smidth & Co. Aktieselskab F. L. ; 33, Vestergade, Copenhagen.) March 30, 1931, No. 9598. [Class 46.] A number of radially disposed filter bodies of oblong, oval or polygonal cross section and having the faces of larger area transverse to the axis of the apparatus are arranged to rotate about a central space containing a conveyer for the removal of the separated solid matter. As shown in Figs. 1 and 2, the filter bodies 8 are fixed to a drum 1 which is supported by a track rail 4 and a trunnion 6 and rotated by means of a rack 7<1>. The material under treatment is supplied to the drum through a pipe 10. The bodies 8 are connected to suction and air pressure means by a distributing valve 15 and pipes 13, 14, which pass through the trunnion 6. Pipes 11 extend from the pipes 13 to the inner end of the filter bodies. Filtration takes place while the bodies are immersed in their lower position and the cakes formed are removed by air blast when the bodies are at the top, the cakes falling on to an endless conveyer 9 of net or perforated material. The side faces of the bodies 8 mav be formed of cloth or the bodies may be built up of strips of metal or paper. The bodies may taper inwardly to facilitate detachment of the cakes. In a modification the drum is omitted, and the filter bodies are supported by the pipes 13, 14, which are arranged to extend along the inner edges of the bodies. In their lowest position the bodies dip into a trough containing the material under treatment. Fig. 5 shows a further modification for filtration under pressure. The drum is closed, supported by trunnions 25, 26 and rotated by means of a toothed rim 27. The separated solid matter falls on to a worm conveyer 9 and is forced out past a cover 34 which may be weighted or loaded by a spring or an air piston. The worm is rotated by means of a pulley 33 and a hollow shaft 28, through which air under pressure and the material under treatment is supplied to the drum.
Patent GB-766036-A (GB)
Title: New 5-benzyloxy-indole derivatives and process for the production thereof
Inventor: JUSTONI ROMEO
IPC: C07D209/42
Filed: 1955-04-01
Abstract: The invention comprises indole derivatives of the formula <FORM:0766036/IV(b)/1> where X is a hydrogen atom or an alkyl group containing up to 5 carbon atoms, and their preparation by heating in boiling anhydrous dioxan, benzene or its methyl homologues, or, when X is an alkyl group, an alkanol containing up to 5 carbon atoms, a -keto adipic acid p-benzyloxy-phenyl-hydrazone or a dialkyl ester thereof in the presence of a mineral acid.  When the free acid is heated in an alkanol the process is a combined esterification and cyclization.  Alkaline hydrolysis of the esters of the invention gives the parent acid.  The phenyl hydrazone starting material is prepared by coupling diazotized p-benzyloxyaniline with a -carbethoxycyclopentanone and hydrolysing the coupling product in an alkaline medium followed, when the ester is required, by esterification with an aliphatic diazo compound or an alkanol containing up to 5 carbon atoms. Examples described the preparation of the free acid of the invention and its diethyl, dimethyl and di-2-methylbutyl esters, and the hydrolysis of the latter two compounds to the free acid again.
Patent GB-651295-A (GB)
Title: Electrostatic a.c. generator
IPC: H02M7/54
Filed: 1948-04-06
Abstract: 651,295. Electrostatic machines; automatic voltage control systems. WARTHEN, C. F. April 6, 1948, No. 9614. [Classes 35 and 38 (iv)] In an electrostatic generator having conducting blades embedded in and supported by insulating material, the rotor blades are excited with D.C. and A.C. is taken from the stator blades. The metal-foil rotor blades 22, which are alternately polarized from a D.C. source through slip-rings 16, 17, are enclosed within insulating discs 20 spaced along the rotor shaft by spacers 21. The stator blades 27 are likewise enclosed in rings 23 of insulating material supported on spacer posts 24, and are alternately connected to the A.C. output terminals S1, S2. The machine casing 26, which may be filled with liquid dielectric, such as chlorinated diphenyl, is arranged to be horizontally split for easy assembly. A regulating circuit is shown in Fig. 5, in which 35, 36 represent D.C. excited rotor blades supplied with a potential EEX from a D.C. source B+, B -, and 37, 38 are the stator output plates feeding a resistive load. The output voltage is transformed at T and is rectified by a diode 42 which puts a D.C. potential across condenser 43 which is connected to a potential divider 45 connected across the D.C. source B+, B - . The condenser voltage is in opposition to a negative biassing battery 46 for a triode 47 which controls the potential supplied to the rotor blades 35, 36 to maintain the output at a value set by the potentiometer 45.