baber/WOPTO huggingface dataset:
Patent GB-778136-A (GB)
Title: Frame members for use in the construction of metal door frames, and doors made therefrom
Inventor: SMITH HAROLD DESMOND
IPC: E06B3/72
Filed: 1954-09-27
Abstract: 778,136. Window and door frames. HOPE & SONS, Ltd., H. Dec. 7, 1955 (Sept. 27, 1954], No. 27803/54. Class 20(3)  The two side members g, h, and an upper cross member i, mitred at the corners, and joined, e.g. by welding, to form with a lower cross member j a door or window frame, are each formed from metal strip which is shaped, e.g. by pressing, to form a hollow member of substantially rectangular configuration, the free edges d, e of the strip being overlapped adjacent a step a along the inner face of the member and united, e.g. by welding f which conceals the joint. The outer edge of the front face of each member g, h, j is extended laterally to provide a flange b to abut against the corresponding jamb or upper cross member of the fixed door, or window, frame 2, 3. A projection c is formed adjacent the rear face of each member g, h, i to complete the door, sheet metal panels m, n are attached to the side members g, h to occupy the whole of the door area between the members g, h or as shown, to occupy only the lower part, the upper part in this case being filled by a window o. The side edges of the panel m each have a lip q to abut on the step a of the adjacent side member g or h, the upper edge being shaped to channel section and having a lip r. Lips s on the sides of the panel n abut against the lips q of the panel m, and a lip t along its upper end meets the lip r, the upper ends of both panels m, n being joined, e.g. by welding, as at u. Lips w, v on the lower edges of the panels m, n engage the edges of the lower cross member j. The window o is located in the frame by means of a glazing strip x. The door, or window, is mounted in the fixed door, or window frame 2, 3, and is attached to one of the jambs 3 by hinges 5.
Patent GB-642158-A (GB)
Title: Improved arrangement for radio beacon transmitters
IPC: G01S1/02
Filed: 1947-10-17
Abstract: 642,158. Directive radio systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 17, 1947, No. 27857. Convention date, June, 12, 1943. [Class 40 (vii)] Relates to rotating-beam beacons comprising a pair of mutually perpendicular directive aerials, e.g. crossed Adcocks, which are energized by R.F. signals of the same frequency amplitude-modulated in phase quadrature by a single sinusoidal modulating frequency. In such systems distortion of the rotating directional pattern, e.g. due to irregularities in the earth's surface, cause a non-uniform rotation of the pattern and according to the present invention this is corrected by adding a Harmonic preferably the third, to the modulating signal. As shown in the Figure, the fundamental modulation frequency is produced by the R.C. oscillator 11-14 which gives four outputs of relative phase 0, 90, 180 and 270 degrees from stages 14, 13, 12 and 11 respectively. Out-ofphase outputs from stages 14 and 12 are applied together with push-pull carrier frequency voltages from circuit 1 to the cathodes of modulator valves 5 and 6 and the push-pull output is applied through a bridge circuit 26 and push-pull amplifiers 30, 31 to one of the directional aerials, push-pull outputs from stages 13 and 11 being applied through similar circuits 19, 20 to the other directional aerial. The harmonic modulating frequency is produced by the R.C. oscillator 15-18 which is similar to and synchronized by oscillator 11- 14 and the four outputs are applied to modulators 3, 4 and 21, 22 similar to modulators 5, 6 and 19, 20. The push-pull outputs from modulators 3, 4 and 5, 6 are combined in the inductance bridge 26 having output coupling coils 27, 28, the bridge also serving to suppress the carrier of the two modulated signals and the outputs from modulators 19, 20 and 21, 22 are combined in a similar bridge circuit. The amplitudes of the outputs from oscillator 15-18 may be adjusted by potentiometers 34-37 to obtain the requisite correction. Specification 642,094 is referred to. The Specification as open to inspection under Sect. 91 refers to a known system in which correction voltages are generated by a rotary wire-wound potentiometer. This subject-matter does not appear in the Specification as accepted.
Patent GB-922191-A (GB)
Title: Improvements in or relating to apparatus for coupling a tractor to a trailer vehicle
Inventor: ROBINSON ALLEN FRANK
IPC: B62D53/12
Filed: 1958-09-02
Abstract: 922,191. Brake transmission apparatus. J. BROCKHOUSE & CO. Ltd. Aug. 31, 1959 [Sept. 2, 1958], No. 28083/58. Class 103 (1). [Also in Group XXXII] A fifth wheel coupling for a tractor and trailer (see Group XXXII), mounts an hydraulic or pneumatic cylinder 26 which may be actuated from the tractor cab to operate the trailer brakes. When the tractor and trailer are coupled the trailer is held by either of hooks 16, 17 on pivoted catches 14, 15, and a brakeoperating push-rod (not shown) on the trailer engages a pivoted plate 28 having a return spring 34. The cylinder 26 when actuated pivots a bell-crank 27 against the action of springs 29, and also pivots the plate 28 against the push-rod to operate the brakes. When the cylinder 26 is de-energized the crank 27 and the plate 28 are returned by their respective springs 29, 34 to return the push-rod and release the brakes. Specification 922,192 is referred to for a part of the coupling mechanism.
Patent GB-442683-A (GB)
Title: Improved scavenging means for the cylinders of two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1934-10-02
Abstract: 442,683. Cylinders. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. Oct. 2, 1934, No. 28221. Convention date, Oct. 2 1933. Addition to 439,973 [Class 7 (ii)] In a two-stroke-engine cylinder, scavenged, as de scribed in the parent Speci fication, by two parallel currents entering tangentially through ports 7 and uniting to leave by a common port 8, the passages leading to the ports 7 are contracted and formed like nozzles, the speed of flow of the charge being thus accelerated. The piston head is domed.
Patent GB-1507941-A (GB)
Title: Process and device for flash smelting of finely-divided sulphidic and/or oxidic ores or concentrates
IPC: C22B5/00
Filed: 1975-07-04
Abstract: 1507941 Flash smelting OUTOKUMPU OY 4 July 1975 [5 July 1974] 28381/75 Heading C7D In a method of flash smelting finely-divided sulphide ores and concentrates, optionally containing oxides, the particulate charge is directed downwards in a reaction shaft entrained in air and/or O 2 , the gases leaving the shaft pass through a sedimentation zone, in which a melt of slag and matte accumulate, and into a rising flue, and the temperature of the molten particles entering the melt is such that endothermic reactions accur in the melt without any fuel addition, Examples relate to smelting a Cu/Fe concentrate to produce a Cu matte.
Patent GB-651502-A (GB)
Title: Improvements in or relating to contact springsets in electrical switching apparatus
Inventor: SMITH SIDNEY REYNELL
IPC: H01H50/58
Filed: 1948-11-02
Abstract: 651,502. Electromagnetic relays. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 2, 1948, No. 28396. [Class 38(v)] The multiple spring-contact set of a relay or switch is operated by a comb member 23 which is located in slots 24 in the contact springs 10-18 and is so shaped that it makes interlocking engagement with the outer " moving" contact springs 10, 18 after it has been threaded through the slots. The comb 23 is inserted into the spring set before the set is fixed to the relay or switch. With the foot of the comb held towards the right, the tooth 31 is first inserted into the slot of the spring 10. The foot of the comb is then moved to the left until the projection 30 is above the spring 10. The comb is now brought into a substantially vertical position and then moved bodily to left until the projection 30 abuts the end of the slot 24 in spring 11. The comb is now pushed up through slots until its upper end meets the spring 18. By flexing the springs downwardly so that the spring 18 is inclined to the comb, the upper end of the comb may be passed through the slot in the spring 18. When the springs are released the comb takes up the position shown, the teeth 25, 31 preventing the comb from falling out and projections 29, 30 preventing any appreciable lateral movement. The top faces of the comb teeth 25-28 are sloped so that the teeth engage smooth parts of the contact springs and not the edges of the slots in the springs. The bottom of the comb is curved so that it may rock rather than slide on the armature 33 of the relay.
Patent GB-250993-A (GB)
Title: Improvements in and relating to the construction of concrete houses
IPC: E04G11/18
Filed: 1924-11-27
Abstract: 250,993. Laing, J. W. Nov. 27, 1924. Moulding walls in situ. - For casting hollow concrete walls in situ, the internal shuttering is supported by depending pockets c<1> in wall-ties c and is spaced apart by upper spacing members c<2> and withdrawable cam members d which can be rotated to release the shutters, and are supported at their lower ends on the wall-ties. The shutters are made of greater length than usual and provided with steel, copper, or asbestos facing to provide a smooth surface on the wall. The inner and outer wall portions are formed of different aggregates. Specifications 154,327 and 179,170 are referred to.
Patent GB-1346930-A (GB)
Title: Acousto-optic method and apparatus
IPC: G01J3/12
Filed: 1971-06-17
Abstract: 1346930 Photo-electric spectrometers HEWLETT-PACKARD CO 17 June 1971 [17 June 1970] 28496/71 Heading G1A A device for analyzing the optical spectrum of a light source 8 utilizes as a wavelength selector an optically anisotropic medium 2 excited by an optical wave 51, 52 thereby making use of the phenomenon that when a light beam 11, planepolarized at 12, is incident on such a crystal collinear with an acoustic wave 52 travelling through the crystal, one small wavelength band of the light beam, determined by the acoustic wave frequency, has its polarization plane rotated through 90 degrees and can therefore be separated from the remainder of the beam, whose polarization plane is unchanged, e.g. by a crossed polarizer 13. Changing the acoustic wave frequency correspondingly changes the wavelength band passed by the polarizer 13 and hence enables a wavelength scan of the incident light beam 11 to be made. The acoustic wave frequency is swept by a generator 19 coupled to an oscillator 4. The output from a thermopile 15 is applied via a switch 17 to a recorder 18 whose chart drive is coupled to the sweep generator 19; hence the recorder presents the spectrum of the beam 11. The percentage of incident light within a particular waveband that has its polarization plane switched is not a linear function of acoustic frequency and the apparatus therefore has to be calibrated. This is done by rotating a mirror 9 so that the crystal 2 is irradiated by a known source 21 having uniform spectral power density in the region of interest. A switch 17, synchronized with the mirror movement, applies the thermopile output to an error detector and store 25 where it is compared with a D.C. reference signal 26. Any error signal is fedback to the control input of the amplifier 5 or the amplifier 16. In another embodiment Fig.2, (not shown) the light beam to be investigated is first passed through a Rochon prism (32) where it is planepolarized. It then passes through the acoustically excited crystal, is reflected from an end-face thereof and emerges having two normally polarized components. The component of interest, which has had its polarization plane switched by 90 degrees, is reflected from the internal face of the Rochon prism to be received by the thermopile.
Patent GB-512203-A (GB)
Title: A process for the production of stable calcium sodium lactate solutions suitable forinjection
IPC: A61K33/06
Filed: 1938-09-30
Abstract: 512,203. Stabilising calcium sodium lactate solutions; medicines. WULFING, G. A. R. VON, and ROSSKOTHEN, E. M. H., (trading as WULFING, J. A.). Sept. 30,1938, No. 28501. Convention date, April 27. [Class 81 (i)] [Also in Group IV] A stable calcium sodium lactate solution, suitable for parenteral injection purposes is obtained by using an alkaline earth-gluconate as a stabiliser. An alkali gluconate is preferably also added and higher concentrations of calcium sodium lactate may be obtained by giving the solution a pH value of 6.2-6.6 as by adding gluconic or lactic acids. The stabilisers may be added in the form of gluconates, or gluconic acid may be added to the solution and neutralised with alkaline earth oxide with or without alkali carbonate. In examples concentrations of 6.5, 7.5 and 8.4 per cent. of calcium sodium lactate are obtained with calcium or strontium gluconate, calcium and sodium gluconates, and calcium and sodium gluconates and lactic acid, respectively.
Patent GB-188514-A (GB)
Title: Improvements in and relating to suspended cots and the like
IPC: A47D9/02
Filed: 1921-10-27
Abstract: 188,514. Jagger, E. Oct. 27, 1921. Cradles; folding bedsteads.-A cot is suspended between two side frames comprising legs h, h<1>, and h<2>, h<3> pivoted near the top at K<1> and connected by members d, d<1>. Bars e, e<1> are pivoted at K on the legs h, h<2> and rest on the legs h<1>, h<3>, a stop pin J serving to prevent the collapse of the legs. The cot is suspended from the bars e by springs S which are stretched horizontally between pairs of screw eyes g carried by the base e and the end members of the cot frame a respectively, so that the cot will have a limited rocking motion. A canopy frame L may be pivoted at K<1> and the end frames may be readily folded.
Patent GB-1456693-A (GB)
Title: Flapper wheels
IPC: B24D13/08
Filed: 1974-06-27
Abstract: 1456693 Abrasive sheets SANKYO RIKAGAKU KK 27 June 1974 [7 Sept 1973] 28587/74 Heading B3D An abrasive wheel comprises a rotary wheel member 25, Fig. 3, a plurality of pad holders 23 circumferentially and equally spaced around the wheel member, and a plurality of superimposed abrasive sheets having their planar surfaces substantially normal to the axis of the wheel member mounted in each pad holder. The wheel member 25 may be of aluminium or nylon and have a plurality of key-hole shaped openings 26 around its periphery, each opening receiving a complementary shaped plate 24 of a pad holder 23. A plurality of superimposed abrasive sheets are clamped in each holder, the sheets being normal to the axis of the wheel and having arcuate outer edges 27 which are substantially parallel to the grinding track, in use, caused by contact between the edges and a workpiece. In another embodiment, the openings 36, Fig. 5, in the wheel member are trapezoidal in crosssection and receive complementary shaped pad holders 33 having pins 44 for receiving pairs of U-shaped abrasive sheets 41 retained in the holders by plates 34. The abrasive sheets may be of single or double layer.
Patent GB-283831-A (GB)
Title: Improvements in impact or beater mills
IPC: B02C13/20
Filed: 1927-10-28
Abstract: 283,831. Amme-Luther Werke Braunschweig der Miag M³hlenbau und Industrie Akt.-Ges. Jan. 31, 1927, [Convention date]. Impact pulverizers.-In an impact or beater mill having a stator formed of spaced bars, an upwardly-projecting anvil is arranged at the bottom of the stator to act as an abutment for the material fed in and permit of hard substances being disintegrated without spreading laterally at the base of the stator. As shown, the removable anvil c is mounted longitudinally at the bottom of a stator b in the mill and is supported on the bars a of the stator by means of flanges d. The elements e of the anvil c located between each two flanges dare roughly of triangular section with rounded corners, and project into the funnel-shaped stator b formed by the curved bars a so as to prevent the material fed in from escaping laterally when struck by the beaters.
Patent GB-631078-A (GB)
Title: The manufacture of pyridyl-3-carbinol and process for obtaining same
Filed: 1947-10-28
Abstract: Pyridyl-3-carbinol is prepared by acting upon an alkyl nicotinate with lithium aluminium hydride preferably under anhydrous conditions. In an example ethyl nicotinate in ether is reduced with lithium aluminium hydride to give pyridyl-3-carbinol.
Patent GB-207182-A (GB)
Title: Improvements in apparatus for translating pressure variations into electrical variations
IPC: H04R23/00
Filed: 1923-11-14
Abstract: 207,182. Westinghouse Electric & Manufacturing Go., (Assignees of Thomas, P.). Nov. 14, 1922, [Convention date]. Discharge-gap apparatus.-Pressure variations, such as those due to sound waves in air, are converted into electrical variations by means of a glow discharge established at atmospheric pressure between electrodes 1, 2. The sensitivity of the positive column varies with the frequency of the sound and this portion is enclosed by an insulating cylinder 28 closed by a conducting plate 14 which constitutes a third electrode. A perforation, small in comparison with the diameter of the positive column, is formed in this electrode through which the tip of the positive column protrudes. The electrode 1 and its point are formed of copper, and the electrode 2 and the tip, with the exception of the point, of material of low heat conductivity, the point being formed of an alloy of copper and nickel in the proportion of 6 to 4. The diameter and length of the negative sparking tip 4 are adjusted so that its diameter is approximately that of the cathode glow. A large voltage of the order of 6000 is connected across the electrodes 1, 2, and a resistance 7, of the order of a megohm, is inserted in the positive supply lead 5. The Specification as open to inspection under Sect. 91 (3) (a) states that the discharge is caused to operate in a magnetic field parallel to the path of the discharge. This subject-matter does not appear in the Specification as accepted.
Patent GB-395549-A (GB)
Title: Improvements in or relating to radio receiving and relaying apparatus
IPC: H05K5/00
Filed: 1932-10-14
Abstract: 395,549. Switch cases and covers. PREH, J., 7, Hindenburgstrasse, W³rzburg, Germany. Oct. 14, 1932, No. 28735. Convention date, May 11. [Class 38 (v).] A two-pole radial switch 3 for selecting a programme circuit, a volume-controlling potentiometer or network 5 and a series resistance are mounted on abase with a removable cover 2. The device has hangers for mounting on a wall.
Patent GB-186263-A (GB)
Title: A safety fastening for securing envelopes, bags, parcels and the like
IPC: B65D27/20
Filed: 1921-10-31
Abstract: 186,263. Lewis, L. H. Oct. 31, 1921. Seals.-A device for securing envelopes, bags, parcels, or the like comprises two discs, which can be secured together by pressure, one disc being provided with a pin for piercing the material of the envelope or package and having at its outer end a collar, and the other disc having a circular hole to receive the pin by forcing it over the collar. The discs may be provided with piongs to facilitate attachment to the flaps of the envelope or the like.
Patent GB-917571-A (GB)
Title: Improvements in or relating to the production of chlorinated or brominated aromatic carboxylic acids
IPC: C07B39/00
Filed: 1960-08-19
Abstract: Nuclear chlorination or bromination of an aromatic compound nuclearly-substituted by at least one carboxyl group or by a group convertible thereto by reaction with nitric acid and which, at least when the aromatic nucleus is benzene, is further nuclearly-substituted by at least an alkyl or cyclohexyl group, is effected by reacting the aromatic compound at the boiling point with nitric acid of up to 40% concentration and hydrochloric or hydrobromic acid and/or a metal salt of such acid.  The nuclear halogenated compound is recovered from the reaction mixture e.g. by filtration from the liquid and washing with water.  The reactants are heated to boiling preferably under reflux with agitation.  Specified starting materials include mono-alkyl benzoic acids; di-, tri-, and tetra-alkyl benzoic acids; dialkyl- and trialkyl phthalic acids; naphthoic acid, alkyl-naphthoic acids, naphthalene carboxylic acids, anthraquinone carboxylic acids, and phenanthrene-quinone carboxylic acids; chloromethyl toluenes, methyl toluates, p-methyl-acetophenone. Alkyl groups include methyl, ethyl, propyl, and cyclohexyl.  Groups which are readily converted into carboxylic acid groups are -COCH3, -COOCH3, -COCl, -CONH2, -CN, -CHO, -CH2OH, -CH2Cl, -CHCl2, and -CCl3. The starting material may be in a liquid or solid state.  In an example, p-toluic acid is heated to boiling under reflux with 30% nitric acid and hydrochloric acid to obtain chloro-p-toluic acid which may be oxidised under pressure at 180 DEG C. with dilute nitric acid to produce chloroterephthalic acid.  Instead of the hydrochloric acid there may be used common salt.  Other examples describe the production of bromo-o-toluic acid, chloro-o-toluic acid, chloro-2.4-dimethyl benzoic acid, chloro-trimellitic acid, dichloro-2.4-dimethyl benzoic acid, dichloro-trimellitic acid, chloro-2.4.5-trimethyl-isophthalic acid, chloro-a -naphthoic acid, crude 3-chloro-4-phenyl-benzoic acid, and an isomeric mixture of dichloro-benzoic acids.  Chlorine or bromine may be similarly introduced into already nuclear chlorinated, brominated, iodated, or fluorinated aromatic carboxylic acids.
Patent GB-892999-A (GB)
Title: Electrolytic grinding
IPC: B23H5/08
Filed: 1960-08-22
Abstract: 892,999. Electrolytic grinding apparatus. ANOCUT ENGINEERING CO. Aug. 22,1960 [Sept. 14, 1959], No. 28965/60. Class 41. An electrolytic grinding apparatus is provided with a metal - bonded abrasive wheel 10, Fig. 1, mounted with its axis slightly off vertical and in the shape of a frustum of an obtuse angled cone with a slightly convex surface 46, below which is mounted a magnetic chuck 30 holding a workpiece the surface of which presents a small angle, e.g. 2 degrees, with the surface of the grinding-wheel. Electrolyte is fed into a jet-pipe 51. The surface undergoing abrasive action is thereby increased. The work is fed forward on a travelling table 36 towards the axis of the wheel, the slight angle being sufficient for the work to clear the outer edge of the wheel. The workpiece is made anodic and the grinding wheel cathodic. Specification 753,467 is referred to.