baber/WOPTO huggingface dataset:
Patent GB-314704-A (GB)
Title: Improvements relating to cushioning and positioning means for doors and other movable parts
IPC: E05F7/04
Filed: 1928-08-01
Abstract: 314,704. Sleigh, H. L., Cheston, A. S., and Chinn, W. Aug. 1, 1928. Door stops.-A stud-and-socket device which acts as a resilient buffer for positioning and silencing doors and other movable parts comprises a cylindrical socket 8 open only at its outer end and provided interiorly with a plurality of concentrically-disposed flexible metallic tongues 10, 11 adapted to engage around the circumference of the stud 6, which enters the socket in a substantially axial direction and compresses a resilient lining of rubber 13 interposed between the said tongues and the cylindrical wall of the socket. The pin 6 carries also a rubber pad 7 which engages the front end of the socket 8, secured to the inside face of the fixed door pillar, when the door is closed. The tongues 10, 11 are secured to the base of the socket by a screw 12. The plate carrying the socket is formed in a striking part 14 having an inclined front face 15 which engages the bevelled surface 16 of the bolt when the door is slammed, and an inclined rear face 17 which engages the rear bevelled face 18 of the bolt, thus tending to draw the door closely against its pillar and maintain the stud 6 is engagement with the socket. The stud and resilient socket members may be employed as a fitting separate from the door latch.
Patent GB-819994-A (GB)
Title: Improvements in or relating to surgical diathermy apparatus
Inventor: HORNE CLEAVNOR
IPC: A61B18/12
Filed: 1956-07-18
Abstract: 819,994. Diathermy apparatus. COX Ltd., S. Sept. 16, 1957 [July 18, 1956], No. 22276/56. Class 81 (2). In diathermy apparatus for coagulation purposes, the electrodes are connected to form part of the oscillator feed-back circuit, so that the variation in the output load, as coagulation proceeds, does not interfere with the operation of the apparatus. In the form described, a triode 1 is connected as a modified Hartley oscillator with its tuned circuit 3, 4 connected through a coupling condenser 9 and inductance 10, providing the effect of a high impedance source of oscillations, to a tuned circuit 11, 12 across which the electrodes are coupled by means of coaxial cable 13, 14. Thus the tapping on oscillator coil 3 is connected to the cathode through the patient's electrodes.
Patent GB-531779-A (GB)
Title: Transmission and reception of frequency modulated waves
IPC: H03C3/06
Filed: 1939-08-01
Abstract: 531,779. Frequency demodulation. STANDARD TELEPHONES & CABLES, Ltd. Aug. 1, 1939, No. 22319. Convention date, Aug. 24, 1938. [Class 40 (v)] Frequency modulated waves are demodulated by impressing upon a series tuned circuit 39, 40 of which the inductance 39 is variable according to the current in a control winding 41. This circuit shunts the signal from the grid of a detector valve 32, but upon variation of the frequency of the incoming signal, the anode current of the valve changes and causes the frequency of the circuit 39, 40 to follow that of the signal. The anode current variations also operate the receiver 42. To compensate for non- linear relationship between the current in the winding 41 and the resonance frequency of the circuit 39, 40, this current can be used to control a similar resonance circuit shunted across a local oscillator so as to amplitude modulate the local oscillations which are thereafter demodulated. Alternatively a suitable non-linear resistance is connected in the anode circuit, and the voltage thereacross is applied to the receiver 42. In a modification a frequency discriminating circuit using currents in quadrature is included between the circuit 39, 40 and a pair of detector valves. The Specification as open to inspection under Sect. 91 of the Act also discloses a phase quadrature circuit in which the quadrature current is obtained from a local oscillator the frequency of which is varied by the demodulated signal current. It also discloses transmitters of frequency modulated signals in which modulation is effected by a variable resonance circuit similar to the circuit 39, 40. This subject-matter does not appear in the Specification as accepted.
Patent GB-1273251-A (GB)
Title: Replaceable medium, extended area filter unit
IPC: B31D5/00
Filed: 1969-05-02
Abstract: 1,273,251. Filters. CARBORUNDUM CO. 2 May, 1969, No. 22422/69. Heading BID. A sleeve-like filter element (16) of sheet material is constrained to pleated shape by having its ends clamped against outwardly extending cogs 22, 24 of a core 12 by respective segmented clamping rings 40, 42 which present inwardly extending cogs 52, 54, fitting between cogs 22, 24 (Fig. 1, not shown). The two ends of the core are joined by posts 38, and the rings 40, 42 may be similarly joined by ribs 44 or separate. Core and rings are moulded of polypropylene, and the segments of the rings in Fig. 3 are connected by integral, flexible straps 58. The rings open out (Fig. 5, not shown) to facilitate replacing the element (16), and their mating ends are secured by catch 78 or by an enclosing wire clamp (76) (Fig. 1, not shown). In Fig. 1, clamp (76) encircles axial extensions 52 of the ring, but in Fig. 10 (not shown) radial extensions support the clamp (76) around but clear of straps 58. Fig. 8 (not shown) illustrates non- integral straps (96), and in Figs. 7, 9 (not shown) ring segments are hinged together by pins (90) in slots (92). Figs. 11 to 13 (not shown) illustrate sealing the ends of the filter element between pairs of concentric gaskets or by integral rubber mouldings.
Patent GB-837877-A (GB)
Title: Vibration-damping system
Inventor: AEBERSOLD FREDERICK CARL
IPC: F16F15/14
Filed: 1958-07-14
Abstract: 837,877. Torsional vibration dampers. CHRYSLER CORPORATION. July 14, 1958, No. 22556/58. Class 108(3) In a vibration damping system for the power transmission system of a motor vehicle, two torsional vibration dampers, 30, 44, are used. The dampers 30 and 44 have resilient annular members 32 and 42, and inertia members 33 and 45 respectively. The resilient member 32, and the inertia member 33 are each in one piece. The resilient member 42 consists of a strip of material wrapped around a shaft 37. The inertia member 45 consists of two halves bolted together. The two vibration dampers are disposed one either side of a universal joint 36.
Patent GB-446653-A (GB)
Title: Improvements in or relating to colored photography
IPC: G03C7/06
Filed: 1934-08-02
Abstract: 446,653. Sensitive ma.teria,l for colour photography. CERINI, L., 16, Via Bettinelli, Castelanza, Italy. Aug. 2, 1934, No. 22559. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 4, 1935]. [Class 98 (ii)] Sensitive material for producing multicolour-screen records comprises a fabric of coloured threads woven with recurring sequence of colours, and sensitized in the mass with silver halide. The threads themselves may be spun with fibres of the different colours to obtain a finer screen pattern. The threads are preferably of water-absorbent material, and may comrpise silk, mercerized cotton, regenerated cellulose and its derivatives (viscose, acetylcellulose), or Vandura gelatin, and the fabric may be used with or without a support (plate, film, or paper). The threads are coloured with colouring matters resistant to the action of light and to developing &c. baths, e.g. indanthrene colours. They may be yellow, red, and blue ; or yellow-green, orange-red, and blue-violet. Sensitization is performed either by direct imbibition of finelydivided silver-halide in almost colloidal suspension, or by precipitation from solutions of an alkaline halide and a silver salt, and the layer is matured and panchromatized in usual manner. A negative produced on such material may either be reversed to convert it into a positive, or may be illuminated. by reflected light and photographed on similar material. The original negative may be of larger size than the copies in order to reduce screen pattern effects.
Patent GB-1073369-A (GB)
Title: A processes for oxidizing trichloroethylene to dichloroacetyl chloride
IPC: C07C51/58
Filed: 1966-05-20
Abstract: Dichloroacetyl chloride is obtained by oxidizing trichloroethylene with oxygen with the aid of a free-radical generating means at a temperature of 65-200 DEG  C. and at a pressure of 2-20 atmospheres. Specified free-radical generating means are activating radiation, e.g. U.V. actinic light, or chemical free-radical generators, preferably those which provide organic peroxy radicals.  Nitrogen bases may be added to facilitate the conversion of any trichloroethylene oxide which may be present to the required product. The process may be carried out continuously or batchwise.  Examples are given.
Patent GB-239863-A (GB)
Title: Improvements in speed-changing system for cycle vehicles
IPC: B62M11/14
Filed: 1925-09-10
Abstract: 239,863. Soc. Anon. Rachlis, Dupin, et Cie. Sept. 10, 1924, [Convention date]. Variable-speed gearing.-In an epicyclic change-speed gearing as described in Specification 216,106, the planetary pinions engage on the inside with a central gear wheel preferably having roller teeth, and on the outside directly with the rollers of a chain which is guided on a rail secured to the planet carrier. In the application to a bicycle shown in Figs. 1, 2, and 5, the planet pinions d are carried between discs a, g, the disc a being secured to the pedal crank b. The central gear wheel o carries rollers r and is supported and positioned by its engagement with the sides of the planet pinions. The chain runs on rails k carried by the disc a, the rail being cut away in parts to allow the teeth of the planet wheels to engage the rollers of the chain. A pawl u carried by the disc a permits rotation of the planet wheels in one direction only. A pawl t operated by a cable d<1> is moved into or out of engagement with ratchet teeth on the interior of the central wheel o to give the high or low speed. When the wheel o is held stationary, the planet pinions roll thereon and the chain is moved more rapidly than the ring k, while, when the wheel o is free, the pawls m lock the planet wheels d and give a solid drive. In a modification, the central gear wheel is carried by a ball bearing on the hub of the pedal.
Patent GB-709485-A (GB)
Title: Improvements in or relating to gramophone records
Inventor: RAE ALEXANDER JAMES
IPC: G11B3/08
Filed: 1949-03-03
Abstract: 709,485. Gramophone records. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 20, 1950 [March 3, 1949], No. 22642/51. Divided out of 709,472. Drawings to Specification. Class 40 (2). The description is substantially the same as that in Specification 709,472. The claims however relate to the record.
Patent GB-461322-A (GB)
Title: Manufacture of compounds of the aetio-cholenone or aetio-allo-cholenone series
Filed: 1935-08-12
Abstract: Compounds of the aetio-cholenone or aetio-allo-cholenone series are obtained by causing halogen to act on a compound of the aetio-cholanone or aetio-allo-cholanone series and treating the halogen compound so produced with an agent that eliminates hydrogen halide, such as a tertiary amine.  Amines mentioned for this purpose are pyridine, quinoline and dimethylaniline. Transformations according to the present invention which are mentioned are the conversion of aetio-cholane dione and aetio - allo - cholanone into androstene - diones-(3 : 17). Androstane-ol-(17)-one-(3) and aetio-allo-cholanol-(17)-one-(3) and their esters into androstene-ol-(17-ones-(3) and esters thereof.  In examples: (1) bromine is added to a glacial acetic acid solution of androstane-dione, and the product is precipitated with water.  The recrystallized bromo-androstane-dione-(3 : 17) is boiled with dry pyridine for 15 hours, whereupon the solution is acidified and the andro-stene-dione extracted with ether; (2) bromine is added to a glacial acetic acid solution of androstane-ol-(17)-one-(3)-acetate obtained as described in Specification 461,335 and the bromo-androstane-ol-(17)-one-(3)-acetate precipitated with water. This product is treated with boiling quinoline and worked up as in example (1) to give androstene-ol-(17)-one-(3)-acetate.  The process can also be applied to aetio-cholanol-(17)-one-(3)-acetate.
Patent GB-908380-A (GB)
Title: Improvements in or relating to marking presses
Inventor: TYPROWICZ WLADYSLAW
IPC: B44B5/00
Filed: 1958-07-15
Abstract: 908,380. Marking-machines. MASSON SEELEY & CO. Ltd. July 13, 1959 [July 15, 1958], No. 22679/58. Class 100 (2). A platen blocking press wherein a movable platen is constrained to move rectilinearly in a direction at right angles to the plane of a fixed platen, comprises a drive shaft, a drive member pivotally mounted about a fixed axis and extending between the drive shaft and the movable platen, means providing a first cam action between the shaft and the drive member whereby rotation of the shaft is translated into rocking movement of the drive member, and means providing a second cam action between the drive member and the movable platen whereby the rocking movement of the drive member is translated into movement of the movable platen in its constrained rectilinear path. As shown the upper platen 1 of the press is fixed and is provided with means for feeding blocking foil beneath it. The lower platen 2 has two steel pillars 3 secured thereto which slide in bearings 4 in a casting 5 mounted on a supporting table 6, thereby guiding the platen 3 for vertical reciprocation. A drive-shaft 16 is mounted beneath the platen 3 and is oscillated through 180 degrees by the machine drive. The shaft 16 has three diametral slots 18 along its length in each of which are accommodated three hardened steel rollers 19 whose combined diameters are greater than the diameter of the shaft 16. The rollers 19 are free to move up and down in the slots 18. A table-like drive member 20 extends between the shaft 16 and platen 2 and is pivoted at 21. A cam 22 is mounted on the underside of the member 20 and a cam 23 is mounted on the machine frame opposite the cam 22, both cams being engaged simultaneously by the steel rollers 19 at opposite ends of the slots 18. Oscillation of the shaft 16 imparts a rocking motion to the member 20 through the cams. 22, 23, the member 20 being at its greatest elevation when the rollers 19 are in vertical alignment. Three hardened steel plates 24 are secured to the upper side of the drive member 20 and each carries a hardened steel roller 26 in a semi-cylindrical bearing recess on its upper side. The rollers 26 engage a hardened steel bearing-plate 28 on the underside of the platen 2 and thereby transmit the rocking motion of the member 20 to the platen 2 as a vertically reciprocating motion. In modifications the rollers 19, 26 may be replaced by balls, the upper platen may be the movable one, and the shaft 16 may be made continuously rotatable. Specification 813,651 is referred to.
Patent GB-757589-A (GB)
Title: Improvements in or relating to tracers or duplicators for machine tools
IPC: B23Q35/36
Filed: 1952-09-11
Abstract: 757,589. Copy-milling. ARMYTAGE, F. W. Dec. 10, 1953 [Sept. 11, 1952], No. 22787/52. Class 83 (3). A tracer head for a copy-milling &c. machinetool has a universally-pivoted spindle 1 controlling a pair of hydraulic control valves, set at 90 degrees to each other, through a partspherical bush 1x, and a pair of connectors 22, each connector being rigidly attached to a valvestem 21 and having two diametrically-opposed projections 24 engaging the bush 1x and two diametrically-opposed ground surfaces 26 in sliding contact with ground faces on the projections 24 of the other connector, so that each connector can move in the direction of its valveaxis without causing movement of the other connector and valve. The hydraulic valves may be of the type described in Specification 692,642 and they control hydraulic jacks arranged at 90 degrees to one another for operating a compound table carrying the work and pattern. The spindle may be pivoted in a rockable bearing 3, Fig. 1, with a curved inner face 4 or by a part-spherical portion 1b, Fig. 3, supported with line contact on a bearing 3a, or in, the alternative bearing shown in Specification 692,642. For centralizing the spindle, a spring-pressed ball adjustable by a screw 9 in a cover 8, itself centralized by eccentric pins 15 and securing studs 13, may engage a depression in the top of the spindle. Alternatively, a sleeve 32 loaded by a spring 33 compressed by a split screwed-ring 34 may engage a shoulder 1c on the spindle. If the hydraulic control valves are spring-loaded in one direction, this loading may be counteracted by adjustable spring- loaded plungers 30. The tracer-foot 7 can be manually pressed against a pattern or guided over a drawing, or, for automatic tracing through 360 degrees round a pattern of magnetic material, the foot may be either a permanent or electromagnet, or, for semi-automatic tracing through 360 degrees, the tracer-spindle may be biased towards the pattern by an angularly-adjustable spring-loaded director device. The director device shown in Fig. 1 comprises a spring-loaded plunger 27 bearing against the lower end of the spindle and supported from a ring 29 adjustable through 360 degrees, and that shown in Fig. 3 comprises a V-notched plunger 41 engaging the top of the spindle under the action of an adjustable spring, and for rapid movement of the work-table, of a handle 35, the plunger being mounted in a cap 38 rotatable on the cover 34. When cutting simple contours, one hydraulic control-valve can be by-passed by a valve or valves in the hydraulic system and a constant-speed traverse can be given by the corresponding jack or by a mechanical drive. When a magnetic foot is used (and preferably also when the foot or pattern is non-magnetic), the tracer-spindle is slowly rotated by a variable-speed electric or hydraulic motor connected by a belt to a stepped-pulley 16 on a sleeve 17 having slots 20 engaging a pin 19 on the spindle.
Patent GB-201062-A (GB)
Title: Improvements in and relating to motor vehicles
IPC: B62D61/08
Filed: 1922-08-22
Abstract: 201,062. Osborn, A. E. Aug. 22, 1922. Swivelling wheel hubs. - A combined front driving and steering wheel rotates upon a support 27 mounted by means of vertical pivots 32 upon the front axle 13, the ends of which are connected to the vehicle frame by springs.
Patent GB-941267-A (GB)
Title: Improvements in or relating to hot tops for foundry moulds
Inventor: WITT GEORGE RILEY
IPC: B22D7/10
Filed: 1961-06-23
Abstract: 941,267. Ingot moulds. FOSECO INTERNATIONAL Ltd. June 14, 1962 [June 23, 1961], No. 22904/61. Heading B3F. Mould heads and head boxes are lined with heat-insulating &c. slabs 14, 15 having interlocking projections and recesses 18, 19, and urged against the walls of the mould &c. by means such as spring clips 26. The slabs are held together during insertion into the mould head &c. by pins 16, or by compression spring clips inserted in the holes 30 and replaced when the slabs are in position,by the clips 26. The slabs are supported from the top of the mould or box by bars 25 passing through rings 24 which are the upper extensions of reinforcing rods which pass through the slabs. Specification 926,204 is referred to.
Patent GB-356413-A (GB)
Title: Improvements relating to radio-receiving apparatus
IPC: H01Q1/46
Filed: 1930-07-30
Abstract: 356,413. Aerials. COLE, Ltd., E. K., Ekco Works, Southend-on-Sea, WYBORN, E. J., Hedgerows, Ardleigh Green Road, Hornchurch, Essex, and MARTIN, A. W., 1, Thames Close, Leigh-on-Sea. July 30, 1930, No. 22989. [Class 40 (v).1 A receiving aerial for wireless sets driven from the mains consists of a short piece of wire extending parallel to, and preferably intertwined with, the supply leads connecting the plate and filament circuits to the electric-supply point.
Patent GB-1036784-A (GB)
Title: Attenuator
IPC: H03G3/20
Filed: 1963-06-10
Abstract: 1,036,784. Automatic volume controls. BENDIX CORPORATION. June 10, 1963 [June 15, 1962], No. 23088/63. Heading H4R. In a system for controlling the level of a signal ei, Fig. 1, in accordance with a control voltage Ec the signal ei is added to reference voltage E ref and applied to a variable attenuator network 1, the attenuated signal e 0  is separated from the attenuated reference voltage Ef in a decoupler 10 and the voltage Ef compared with a control voltage Ec and the difference used to vary the attenuation of the attenuator 1. Preferably the signal ei is a 400 c.p.s. A.C. signal which is added to a D.C. reference voltage E ref the resulting signal modulating a pulse stream to produce a signal as shown in Fig. 4B, which is applied to a pair of series-connected thermistors 2 and 3, Fig. 1. The attenuated signal from the junction-point 8 is applied to a detector 9 and then the attenuated D.C. reference voltage separated from the A.C. signal in decoupler 10, the D.C. signal Ef being compared with the control voltage Ec. If Ef is greater than Ec switch 11 operates and current flows through heater 4, increasing the resistance of thermistor 2 and the attenuation of the network 1. The turn-off network 13 opens switch 11 after a time which depends on the amount by which Ef exceeds Ec and so counteracts the thermal delay time of the thermistor network. Similarly if Ef is smaller than Ec the switch 12 operates, passing current through heater 5, and reducing the attenuation of network 1. The signals applied to the thermistors are pulse amplitude modulated in order to reduce the amount of power dissipated in the thermistor attenuator network thereby minimizing variation of the attenuation of the network with applied signal level. In a modification of the thermistor control circuit, Fig. 3 (not shown), the difference voltage Ec-Ef is added to a sinusoidal voltage and applied to a Schmitt trigger having the thermistor heaters connected in the alternately conducting circuits, variation of the difference signal causing variation of the mark-space ratio in the Schmitt trigger thus causing differential heating of the thermistor heaters. The control voltage may be derived from a pair of independent variables in a function generator, Fig. 2, not shown).
Patent GB-1114402-A (GB)
Title: Recovery of fluorine values from the waste gases of aluminium reduction cells
IPC: B01D53/68
Filed: 1965-05-31
Abstract: A process for treating waste-gas from an aluminium reduction cell containing sulphur dioxide and acidic fluorides comprises treating the waste-gas with gaseous ammonia to form a solid-fluoride containing reaction product which is filtered from the gas stream, the quantity of ammonia added being sufficient to neutralize all the acidic-fluorides but being insufficient to neutralize more than a small proportion of the sulphur dioxide. The filtering is accomplished by means of a filter bag coated with alumina, cryolite or calcium fluoride.  The solid fluoride-containing reaction product is mixed and covered with alumina and heated on the crust of the aluminium reduction cell to evolve the ammonia content, the residue being charged into the bath of the cell.  The waste-gas from the cell can be freed of aerosol-size fume particles as well as of the acidic fluorides by inejcting into the waste-gas stream, simultaneously with ammonia gas, finely divided coke, charcoal, carbon, alumina, cryolite or aluminium fluoride.