baber/WOPTO huggingface dataset:
Patent GB-478963-A (GB)
Title: Improvements in or relating to adjustable windows and operating mechanism therefor
IPC: E05F11/42
Filed: 1936-07-24
Abstract: 478,963. Window regulators. SLEIGH, H. L., and CHESTON, A. S.; and STUART, G. M., and McELROY, M., [Representatives of STUART, F. J.]. July 24, 1936, Nos. 20598/36 ; and 13343/37 divided out of 478,975. [Class 20 (iii)] A window regulator for sliding windows is provided with means permitting the window to be closed independently by hand. The device as shown in Fig. 1 is of the kind described in Specification 399,282 and is mounted on the guard rail of a half-drop window as described in Specification 478,975 and is characterized in that the pinion-shaft 19 is driven by a free-wheel device comprising a spring-pressed ratchet sleeve 35 engaging ratchet teeth on the wormwheel 22. The sleeve is slidably but non- rotatably mounted on the pinion-shaft 19. The arrangement shown in Fig. 5 comprises an expanding spring 45 frictionally engaging the pinion. casing and adapted to be freed therefrom by a pin 48 on the handle spindle during a lost motion engagement between a dog 49 on, the spindle and a slotted opening on the pinion. When raising the window by hand the spring is contracted by the engagement of an end thereof with a hole in the pinion. The pinion may also be driven by a quick-thread screw integral with the handle spindle a lost-motion being allowed in the casing between the stop pin 59 and the screw 57 and the casing walls, Fig. 7. The pinion in this modification is retained by a spring 55 engaging ratchet teeth on the face of the pinion and allowing the window to be raised by hand as well as by the handle. When lowering the window by the handle the screw 57 frees the end of the spring 55 from the ratchet teeth during the initial lost movement referred to. In the modifications described with reference to Figs. 5 and 7, pinions on opposite sides may be driven by bevel gearing or worm and wheel and a crossshaft. A hand-release may be provided for the holders of the ratchet-and-pawl kind and the window thereby freed for hand movement up or down.
Patent GB-423102-A (GB)
Title: Tunnel oven for cooking products by indirect heating
IPC: A21B1/48
Filed: 1933-07-21
Abstract: 423,102. Bakers' &c. ovens. SPINETTE, V., 20, Rue Camille Simoens, Schaerbeek, Brussels. July 21, 1933, No. 20634. Convention date, July 22, 1932. [Class 51 (ii)] In a gas-fired travelling bakers' oven the upper and lower heating elements consist of closelyspaced closed combustion chambers 31 external to the oven chamber and having their walls facing the top of the oven (or the bottom of the upper run of the conveyer) of flat formation. The chambers 31 are of parallelepiped form slidably mounted transversely of the oven, as on girders 46, so as to be readily removable, and having the longer dimension of their crosssection parallel with the oven length. Fig. 7 shows a plan of a combustion chamber 31. Extensions 32 and 31<a> at its ends respectively allow access to the gas burner 30 (for removal and for gas supply) and exhaust to flues 42 having an upward bend at the top, Fig. 4, into a main collecting flue. The burners 30 have outlet orifices formed by spaced saw cuts and are removably mounted by hooks 33, 34. The flues 42 are strengthened by exterior casings and expansion is allowed for by sand seals included in their construction while for the same purpose the top of the oven is composed of inverted trough sections each dipping into sand seals at the sides of the oven. The conveyer is composed of plates running by means of rollers 15 on rails 16 and connected by endless chains. Steam for glossing is introduced at 26 between air-lock entry doors 22, 23 which co-operate with a charger 24 such as described in Specification 423,103. The residual heat of the combustion products is absorbed by a water coil 28 in the collecting flue which may supply steam for heating the proving chamber and by a second boiler, not shown. The oven is of hog's back form with entrance at higher level than outlet. Vapours from the oven are removed through valves and longitudinal conduits and any alcohol produced is condensed.
Patent GB-748362-A (GB)
Title: Silk screen printing machines
IPC: B41F15/08
Filed: 1953-07-24
Abstract: 748,362. Stencilling; printing-processes. DUBUIT, L. G. July 24, 1953 [July 25, 1952; Oct. 4, 1952; June 16, 1953], No. 20666/53. Class 100 (2). Apparatus for printing on objects having a non-planar (e.g. convex) surface comprises a frame to hold the object, and an off-set, resiliently deformable transfer pad consisting of a resilient block of sponge rubber or the like secured on a rigid backing plate and adapted to receive an impression of a stencil design on a silk screen, the object being pressed against the pad so that the surface of the pad is deformed to conform with the surface of the object and transfer the design thereto. The offset transfer pad is of sponge rubber 1, Fig. 3, mounted in a rigid frame 2, on which pad is secured a rubber sheet 3 to receive the printing. The article to be printed, such as a capsule 4 of polyvinyl chloride or other plastic material is held by its edges between plates 7, 8 and lowered on to the pad, both the pad and the article becoming deformed, so as to obtain satisfactory printing contact. Several articles 4 can be clamped between plates 7, 8, Fig. 7, the plates being pivoted on a rod 10, Figs. 7 and 8, whence by means of a handle 15, the articles can be printed on both sides by means of two pads 1, 1a. Printing on the pad is performed by means of a silk screen 39, Fig. 4, and squeegee 40. The pad 87 is supported on a carriage 86. A vertical shaft 84 is rotated from a powerdriven pulley 82 through a clutch 79. The shaft 84 reciprocates the carriage 86 through interrupted gears 37, 35 and a crank 31. The squeegee 40 is supported on a tube 44 slidable on a rod 43 pivoted on trunnions 45. The tube 44 and squeegee are reciprocated by a crank 55 actuated by the shaft 84 through interrupted gears 59, 58. The shaft 84 also carries a cam 50 which co-operates with a cam roller 49 to oscillate the rod 43 and raise and lower the squeegee, and the arrangement is such that the squeegee is in contact with the screen only during its rightward stroke. In another form, three pads are carried spaced at 120 degrees on a rotary table, which is rotated intermittently through 120 degrees from the shaft 84 by means including a Geneva cross having six branches, and a gear train.
Patent GB-1121692-A (GB)
Title: Fuel systems for gas turbine engines
Inventor: YATES THOMAS CHARLES
IPC: F02C9/16
Filed: 1965-05-17
Abstract: 1,121,692. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. June 8, 1966 [May 17, 1965], No.20667/65. Heading F1G. [Also in Division G3] The invention relates to a fuel system of a gas turbine engine of the kind comprising a fuel pump which delivers fuel to the engine through a throttle, there being an engine speed responsive governor for protecting the engine against overspeeding by limiting the quantity of fuel delivered thereto, a manually operable power selection means for varying the setting of the throttle in accordance with certain predetermined requirements, and an auxiliary manually operable power selection means also for varying the setting of the throttle, the auxiliary power selection means being intended for use in the event of failure of the main power selection means. Apparatus is provided which is energized when the auxiliary power selection means is energized, the apparatus being responsive to changes in the throttle setting to modify the response of the governor to engine speed. In the embodiment shown fuel is supplied by the variable delivery pump 10 through line 15 and throttle 14 to the burners 11 in the engine 12, the delivery of the pump being controlled by the servopiston 16 which is subject at one side to the pump inlet pressure and at the other side to pump discharge pressure, as modified by valve 18, through line 19. The valve 18 is responsive to pressure difference across the throttle 14. The line 19 is also connected to inlet side of the pump 10 by way of a line containing a restriction 20. The line 15 is also connected to the inlet side of the pump 10 by way of a passage controlled by a valve 21, the valve being controlled by means of a centrifugal governor 22 responsive to engine speed. The governor is controlled by two springs 23a, 23b, the governor normally acting as a top speed governor only. The system comprises also a main power selection means comprising lever 25, automatic electronic control 26 and an A. C. motor 27. The system further comprises an auxiliary power selection means comprising a D.C. motor 28 which can be controlled by means of a button 29, the motor 28 also the motor 27 acting on the throttle 14 through linkage 30. When the auxiliary power control means is energized, a device 31 such as a variable inductance or a variable capacitance is provided which senses changes in the setting of the throttle 14 and feeds a signal to the electrical control unit 32 which in turn energizes a motor 33 which varies the position of cam 34 and thus the loading of the spring 23a of the governor 22. Thus when the auxiliary power selection means 29 is in use the response of the governor 22 is modified so as to minimise the risk of overspeeding at throttle settings below the maximum as well as at the maximum speed of the engine.
Patent GB-1501107-A (GB)
Title: Diodes
IPC: H03D7/14
Filed: 1975-04-21
Abstract: 1501107 Diodes COMMUNICATIONS PATENTS Ltd 21 April 1975 [10 May 1974] 20703/74 Heading H1D [Also in Division H3] A diode having an adjustable capacitance, for use, e.g., in a balanced circuit incorporating at least two diodes, has an insulating body 1, an anode 2 and a cathode 4. A conductive sleeve 7, formed, e.g., by rolling a copper strip so that two opposed edges overlap, is slidable on the body 1, so that the capacitance of the diode/ sleeve assembly may be varied. The sleeve 7 may be secured by a resilient band 8, or by a blob of wax, and it may be connected to one terminal of the diode.
Patent GB-1504103-A (GB)
Title: Flavouring tobacco and foodstuffs
IPC: A23L27/20
Filed: 1976-05-19
Abstract: 1504103 Flavouring tobacco and food R J REYNOLDS TOBACCO CO 19 May 1976 [19 May 1975 21 April 1976] 20716/76 Headings A2B and A2C A flavouring compound of formula 1 is used to flavour tobacco, cigarette filters, cigarette paper, cigarette packaging material or adhesive, or foodstuffs, when used to flavour tobacco the compounds may be present in an amount of 0.0005 to 1.0% by weight. When used to flavour a foodstuff the compound may be present in an amount of from 0.00001 to 0.1% by weight.
Patent GB-841522-A (GB)
Title: Improvements in or relating to the purification of acrylic and methacrylic esters
Inventor: MCILMOYLE PETER LEWIS
IPC: C07C69/54
Filed: 1956-07-04
Abstract: Monomeric esters of acrylic or methacrylic acid and aliphatic alcohols containing 1-6 carbon atoms, prepared by direct esterification or alcoholysis in the presence of an esterification catalyst, usually an acid, and more particularly an acid containing hexavalent sulphur, e.g. H2SO4 or p-toluenesulphonic acid, and a polymerization inhibitor, usually of the quinone or reduced quinone type, e.g. p-benzoquinone, hydroquinone or phenanthrenequinone, are purified by subjecting the products of esterification or alcoholysis, containing the ester, to fractionation and steam distillation in the presence of liquid water and thereafter removing the ester from the distillate.  When using alcoholysis, the alcohol formed is removed as it is formed either by azeotropic distillation or, preferably, using a liquid/liquid extractor as described in Specification 841,521.  The fractionation step is to remove the excess low-boiling starting material and preferably precedes the steam distillation.  Suitable esters mentioned are methyl, ethyl, propyl, n-butyl, iso-butyl, n-pentyl and n-hexyl acrylates and methacrylates.  In examples, n-butyl methacrylate and n-hexyl methacrylate are prepared by ester exchange between methyl methacrylate and the appropriate alcohol in the presence of p-benzoquinone as polymerization inhibitor and H2SO4 as ester exchange catalyst; the crude reaction product is fractionated at atmospheric pressure to remove excess methyl methacrylate, water added and the residue steam distilled, the desired ester being separated from the distillate.  The Provisional Specification refers also to the application of the above purification process to other unsaturated esters which tend to polymerise such as maleates and fumarates.
Patent GB-148951-A (GB)
Title: Improvements in and relating to a receiving arrangement for the reception of electromagnetic waves
IPC: H03D1/08
Filed: 1920-07-10
Abstract: 148,951. Latour, M. C. A. Oct. 21, 1916, [Convention date]. Optical and photographic receivers and recorders.-Wireless signals are amplified by a cascade of thermionic valves and detected by a glowlamp 7, the very fine tungsten or other metallic filament of which is raised to a temperature just below incandescence by a battery 8 or by a local source of electric oscillations of the same frequency as the received waves. The signals may be recorded on a photographic band which is automatically unwound before a window illuminated by the lamp. The oscillations may be rectified before detection, or a detector yielding low-frequency current may be interpolated. The lamp 7 may be protected from excessive currents by a boron resistance 9. In the case of wireless telephony, the photographic record is used in conjunction with a selenium cell for reproducing conversation. In the cascade of valves shown in the drawing, the filaments F have a common battery 3 and the plates P have a common battery 4, the second grid G being coupled at 5 to the first plate circuit.
Patent GB-738443-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C25/32
Filed: 1953-07-27
Abstract: 738,443. Mineral-mining machines. HOY & CO., Ltd., A., and PROCTOR, S. E. July 20, 1954 [July 27, 1953], No. 20824/53. Class 68(1). The frame of an endless, pick-armed chaincarrying jib 15 of a coal-cutting machine has one or more portions 22 extending laterally of, at right angles to, and intermediate of the length of the frame, and the chain track bends away from the rear edge 16 of the frame, passes around each portion 22 and returns by an appropriate twist 25, 26 on to the rear edge 27 of the frame. A further laterally-extending portion may be provided at the end of the jib. The chain is of the type which is capable of universal movement at the joints and of twisting about its own axis. Specifications 630,112, 682,603, 699,636, 707,100, 715,776 and 728,827 are referred to.
Patent GB-385895-A (GB)
Title: Improved manufacture of anhydrous alkali polysulphides
IPC: C01B17/34
Filed: 1932-07-26
Abstract: Anhydrous alkali polysulphides are obtained by reacting molten sulphur with an anhydrous alkali sulphide, for example, sodium sulphide, produced by gaseous reduction of alkali sulphate.  The reaction may be effected in a directly heated closed iron vessel provided with a stirrer, advantageously in an indifferent atmosphere such as nitrogen.  The mass is maintained in a fused condition during reaction, the heat of reaction being in general sufficient for this purpose.  The homogeneous melt may be allowed to settle, or filtered through a hot filter, and then cooled with exclusion of air.  A statement of prior art relates to the production of alkali polysulphides by the reaction of sulphur on a monosulphide or hydrosulphide in alcoholic or ethereal solution, or by heating hydrated monosulphide with an excess of sulphur in a current of hydrogen.
Patent GB-1155264-A (GB)
Title: Converters.
Inventor: SWEENEY ROBERT HENRY
IPC: H02M7/5383
Filed: 1965-05-19
Abstract: 1,155,264. Supply systems for discharge lamps. PATENT INDUSTRIAL GROUP Ltd. 18 Aug., 1966 [19 May, 1965], No. 21112/65. Heading HQH. [Also in Division H3] A discharge lamp such as a neon tube 12 is supplied from a D.C. source 1 by way of a converter having two transistors and two transformers 3, 10 a bridge 2 of rectifiers being provided so that the D.C. source 1-for example, a battery-can be connected in either polarity. When the D.C. source is switched on, the circuit imbalance will cause one transistor to conduct more than the other. The rise of current in the windings of transformer 3 connected to this transistor will cause it to conduct still more heavily until the transformer 3 saturates after which the current through the transistor decreases whilst the current through the other transistor increases. A diode 5 provides a reverse bias with respect to the input voltage. Thus an A.C. is produced in the secondary winding of the transformer 10. A flashing light may be produced by a time switch connected in the source 1. If the converter operates at 50 c.p.s. the tube 12 may alternatively be supplied from a mains supply.
Patent GB-705947-A (GB)
Title: Improvements in clamps for fixing cables, pipes and the like
IPC: F16L3/10
Filed: 1951-09-07
Abstract: 705,947. Brackets. KLEIN, A. Sept. 7, 1951, No. 21204/51. Class 52(5) [Also in Group XXXVI] A holdfast for fixing cables, pipes &c. to a support has a movable claw arranged to clamp the cable in supported position. The bracket 1, Fig. 1, is of U-section, the exterior of the base of the U supporting the cable 3 and the ends of the limbs engaging the support to which the bracket is secured by a screw 7. The movable claw 2 has outer limbs embracing the shank of the hook and a raised portion 4 passing through a slot in the shank. The pivot of the movable claw passes through all the limbs. A slot 5 in the limb 4 receives a wedge 6 that clamps the movable claw against the cable. In a modification, a second pivot in the shank carries two oppositely curved spikes that diverge when driven in and two fixed projections engage the support and prevent the bracket from twisting. Such a bracket can be removed by hammering on the point of the bracket. In another form the bracket is detachably secured to a stay set in a wall &c. by means of a wedge.
Patent GB-774519-A (GB)
Title: Improvements in and relating to electrical connector assemblies
IPC: H01R12/71
Filed: 1953-07-30
Abstract: 774,519. Mounting electrical apparatus. KAMM, L. J. July 30, 1953 [July 31, 1952], No. 21214/53. Class 40(5) An electrical-circuit assembly comprises an insulating panel 5 having depressions 6 formed in one face thereof, a sheet 7 of insulating material bearing a printed conductive pattern fitting over the face having the depressions 6 therein and a plurality of component-carrying members 15 which each carry an insulating sheet 17 having a printed conductive pattern thereon so arranged that when it is inserted as shown within a corresponding one of the depressions 6 it makes contact with the printed circuitry thereon. Resilient pieces 20 are arranged within the members 15 where they make contact with the panel 5 to ensure good contact, together with a wiping action, between the printed circuits. As shown the members 15 are arranged together in pairs and are secured to the panel 5 by means of bolts 30, connection is made with the circuitry of the, assembly by means of terminal members 12, 13 which are provided with extensions which fit through slits in the panel 5 and sheet 7, the prongs 10 at the innermost ends of the extensions being bent out-. wardly after insertion through the slits to secure the terminals in place. The complete assembly comprises a large number of pairs of members inserted in their respective depressions in the panel 5, means, Fig. 3 (not shown), being provided for bolting adjoining pairs of members together. In an alternative arangement, Fig. 10, the panel portion comprises brackets 45 with ribs 46 over which is looped a sheet of insulating material bearing a conductive pattern, the component-carrying members 50 being inserted into the spaces between the ribs 46 so that the. conductive patterns thereon make contact with the pattern on the sheet. Rotation of a handle 59 operates upon a block 57 to force apart the ends of the corresponding member 50, thus compressing the resilient members 49 mounted between the ribs 46 and the insulating sheet and ensuring good contact between the conductive patterns.
Patent GB-694634-A (GB)
Title: Improvements in or relating to wide-band two-phase networks
Inventor: ORCHARD HENRY JOHN
IPC: H03H7/21
Filed: 1949-08-15
Abstract: 694,634. Impedance networks. POSTMASTER GENERAL. Aug. 29, 1951 [Aug. 15, 1949], No. 21239/49. Class 40 (viii). A wide band twophase network comprises a pair of transmission networks of all pass type, having equal and constant attenuations independent of frequency, and with a difference between their phase shifts which oscillates with frequency between (#/2 -#m) and, (#/2+#m) radians over the frequency range, wherein tan(#m/2)=2q<SP>n</SP>, where q=exp(- #k<SP>1</SP>/k), k and k<SP>1</SP> are the quarter periods of an elliptical function with modulus k, and n is the degree of the network, the poles of less being determined from the equation where # assumes all integral values from 1 to (n - 1), the values of the inductive components L of the networks being derived from the equation L=Ro/poWo, and those of the capacities C from the equation Ro being the characteristic impedance of the network and Wo being the geometric mean of the frequency limits of the band of the network. The networks used in the invention are lattice networks, Fig. 2a, showing one of the first degree, and Fig. 2b one of the second. Despite their simplicity the first degree networks have a disadvantage as several joined in tandem must be used and the resonances due to self capacity of the coils in the low frequency sections lie inside the pass band. By combining the highest frequency section with the lowest to form a second degree network, and the next highest with the next lowest, and so on, it is possible to avoid this trouble. A practical example is shown in Fig. 11 where a second degree lattice forms each network. They are connected to common input terminals shown on the left of the Figure and they are terminated in their impedances Ro at the other end.
Patent GB-1065372-A (GB)
Title: Waterproof, antistatic compositions of matter comprising a homo- or copolymer of vinyl chloride
IPC: C08K5/103
Filed: 1964-05-22
Abstract: Waterproof, antistatic compositions comprise a vinyl chloride polymer, optionally together with plasticizers, stabilizers, lubricants, dyestuffs and pigments, and as antistatic agent 0.5 to 10% by weight of the composition of a partial ester of a polyhydric ether alcohol containing at least three hydroxyl groups and an organic cyclic or saturated fatty acid.  The ester may be derived from diglycerol or a polyglycerol, e.g. mixtures of tri- and tetraglycerol, and fatty acids obtained from natural fats and oils, e.g. coconut oil fatty acids, palm kernel oil fatty acids and stearic acid, or benzoic acid, hydrogenated benzoic acids, colophony and hydrophenanthrene carboxylic acid.  The compositions may also comprise dioctylphthalate, cadmium stearate, calcium stearate and montan wax.  Examples describe compositions comprising polyvinyl chloride, montan wax and (1) cadmium stearate and a partial ester of diglycerol with coconut oil fatty acid and benzoic acid or (2) dioctyl phthalate, calcium stearate and a partial ester of polyglycerol with coconut oil fatty acid.
Patent GB-170363-A (GB)
Title: A combined hinge and holder for doors
IPC: E05D11/10
Filed: 1920-07-15
Abstract: 170,363. Fade, T. W. July 15, 1920. Pivoting - adjustments. -For holding a door, such as a cabin door, in any adjusted position, a sleeve E is slidably mounted on a squared or similarly-shaped part of the pivot G, the lower part of the sleeve being formed with ratchet teeth engaging similar teeth on the lower hinge socket D. The members D, E are maintained in engagement by a spring F so that the door is held in an adjusted position until pressure is applied to move the door into another position.