baber/WOPTO huggingface dataset:
Patent GB-795061-A (GB)
Title: Vehicle door fastenings
Inventor: HARMAN JULIUS
IPC: E05C9/04
Filed: 1955-04-07
Abstract: 795,061. Multiple fastenings; sliding bolts; keepers. WILMOT-BREEDEN, Ltd. March 28, 1956 [April 7, 1955], No. 10218/55. Class 44 A vehicle door fastening comprises a keeper 5 of conical or like form adapted to be secured to the body of the vehicle at a position adjacent to that occupied by the lower end of the free vertical edge 8 of the door when the latter is closed, and a fitting adapted to be mounted on a corresponding position on the door, which fitting includes a socket 9 for engagement by the keeper, a vertically slidable bolt 10 engageable with a notch 6 on the keeper and having a lateral projection 11 thereon, and a spring- loaded and pivoted push piece 12 having therein a notch 13 engageable by the projection 11. the arrangement being such that on retraction of the bolt 10 the push piece by exerting pressure on one end of the keeper 5 imparts an initial opening movement to the door. As shown, the push piece 12 includes an arm 15 and is biased towards the keeper by a spring 16. The fastening is combined with a fastening at the upper part of the door comprising a keeper 19 having an obliquely disposed hole for receiving a spring-loaded bolt 20 slidable on and in the plane of the door. The bolt 20 is operatively connected through a pair of arms 21, 23 and a link 24 to a central manually operable mechanism for actuating both bolts 10 and 20. The mechanism comprises a three-armed lever 28 pivoted on a pin 27 and one arm of which is connected through a link 17 with the bolt 10 and another arm of which is connected through the link 24 with the bolt 20. The third arm is formed with a slot 30 engaged by one end of a link 32 connected to a handle 35 on the inside of the door. Movement of the handle 35 to the right, locks both bolts in the shot position while movement to the left retracts the bolts. The bolts are retracable from the outside of the door by means of a push button 38 and a pair of levers 36, 37 pivoted on the pin 27. The button 38 engages a slot 40 in one arm of lever 37. This arm includes a part 41 disposed below a shoulder 42 on the lever 28, the other arm of which is connected to a tension spring 39. The lever 36 is connected to the link 18 and carries in a slot 43 a sleeve 44 for the push button 38. A neck portion 45 of the push button is normally accommodated within the sleeve 44 but is brought into register with and slides in the slot 40 in lever 37 when the button is depressed. In operation, the door is opened from the outside by depressing button 38 which permits the spring 39 to rock lever 37 and through parts 41 and 42, to rock the lever 28 thus to retract both bolts. The spring 16 imparts initial opening movement of the door and also through the link 18 and lever 36 releases the neck 45 of the push button from the slot 40. When the door is reclosed the push piece 12 rocks the levers 36 and 37 and restresses the spring 39.
Patent GB-537457-A (GB)
Title: Improvements in or relating to sound recording motion picture cameras
IPC: G03B31/02
Filed: 1940-06-12
Abstract: 537,457. Kinematograph apparatus. KODAK, Ltd. June 12, 1940, No. 10224. Convention date, Oct. 14, 1939. [Class 97 (i)] [Also in Group XXXVIII] A sound recording motion-picture camera comprising a sound drum normally driven at a uniform speed by the film is now provided with means for initially connecting the sound drum shaft to a driving means for bringing the drum up to speed while the film is stationary and for subsequently disconnecting the sound drum shaft from said driving means and connecting the driving means to film feed means. As shown, the camera casing 11 is divided by a partition 27, Fig. 2, into two chambers, a mechanism chamber 29 and a magazine chamber 28. The magazine 13 contains a film supply with accessory devices including a feed sprocket 16, Fig. 1, a reciprocating pawl 18 for the picture gate, and a sound drum 19 which may be of the viscous flywheel kind described in Specification 534,865. An aperture 14 in the magazine lies opposite the picture objective 12, and another aperture 15 opposite the sound drum. The shafts of the feed sprocket 16 and of the sound drum 19 are adapted to be connected by dog clutches to shafts 22, 23 in the mechanism chamber when the magazine is in position. The mechanism is driven by an electric motor 34 supplied with power from a battery in the magazine. The motor 34 is geared by a worm 37 to a wheel 38 with a hub 41, Fig. 4, loose around a sleeve 42 on the feed shaft 22. The wheel 38 is splined by pins 55 to a disc 53 having a bevelled periphery 52 adapted to engage the bevelled periphery 51 of a disc 50 keyed to the shaft 23. The disc 53 has also a friction face 71 adapted to be engaged by a friction face 70 on a wheel 67 splined to the shaft 22 by pins 68. The wheel 67 is in mesh with a wheel 72 on a stud shaft 73 and the wheel 72 also meshes with a pinion 74 on a shaft 74a serving to operate the feed pawl 18. The operation is started by turning a knob 61, Fig. 6, of a spindle 60 whereby a cam 64 thereon closes a switch 62, 63, Fig. 1, in the motor circuit. The motor then drives gearing 37, 38, discs 53, 50 and shaft 23 but not shaft 22. When the sound drum has been sufficiently speeded up by the drive of the shaft 23, the knob 61 is pressed inwards, whereby a lever 87 releases a brake 88 on the shaft 74a, and a compound lever 79 presses the wheel 67 into frictional engagement with the disc 53 which is at the same time moved away from the disc 50. The drive of the motor is now no longer transmitted to the shaft 23 and is instead transmitted through the shaft 22 to the feed sprocket 16 and through the wheels 67, 72 and pinion 74 to the feed pawl 18. The film is then driven and drives the sound drum which has previously been speeded up. The recording operation is stopped by allowing a spring to push the knob 61 outward to disconnect the film drive and restore the drive of the sounddrum the speed of which is thus kept up in readiness for the next recording operation until the motor is switched off by a reverse rotation of the knob.
Patent GB-732915-A (GB)
Title: Waveguide structures
Inventor: HOGG RICHARD WILLIAM
IPC: H01P1/17
Filed: 1952-04-23
Abstract: 732,915. Wave-guides. MINISTER OF SUPPLY. April 20, 1953 [April 23, 1952], No. 10264/52. Class 40 (8). A TE 10  mode wave is injected into a guide 1 which supports a TE 11  wave at its other end 3 connected to guides 7, 9 having dielectric plates 8, 10 which produce a phase difference of greater than #/ 2  between two component electromagnetic waves. The guides 7, 9 are relatively rotatable so that the phase difference between the component electromagnetic waves emitted by the guide 9 may be adjusted to #/2. In modifications, the guides 7, 9 may be replaced by (a) rectangular guides, the plates 8, 10 being dispensed with, as the difference in dimensions of the sides of the guides produces the necessary phase change; (b) elliptical guides; (c) square guides having a dielectric plate fixed parallel to a side of each guide; or (d) guides having lumped impedances. The differential amplitude of the emitted waves may be adjusted by rotating the guide 7 with respect to the guide 1.
Patent GB-314149-A (GB)
Title: Improvements in dyes
IPC: C09B67/02
Filed: 1928-04-05
Abstract: 314,149. Tootal, S. M. April 5, 1928. Dye preparations for domestic, laundry, and similar use in dyeing materials made of or containing cellulose acetate silk are obtained by suspending an insoluble dyestuff which dyes in a state of fine division or suspension in a solid but soluble form of gelatine and glycerine, thus enabling the dyestuff to be easily handled in use. The insoluble dyes known under the Registered Trade Marks Setacyl, Duranol, and Cibacete, and under the trade name Celatene are specified as suitable. Acid or substantive dyes mav be incorporated with the preparations intended for dyeing mixed materials. The preparations may be made in the form of wafers, discs, cubes, etc., and they may be enclosed in an outer harde casing or covering which is less readily soluble than the gelatine in which the dyestuff is suspended. A powdered soluble dyestuff for dyeing fibres other than cellulose acetate may be additionally enclosed in such casing or covering for use in dyeing mixed materials. The following examples are specified. (1) A Duranol violet paste is suspended in gelatine and glycerine. (2) A Duranol violet paste containing Chloramine fast violet is similarly suspended. (3) An Artisil direct red 2BL paste is similarly suspended and enclosed in a covering of harder material. (4) An Artisil direct red 2BL paste is similarly suspended and enclosed in a container of harder material which is filled up with a dyestuff powder suitable for dyeing silk, cotton, wool, or other fibres. Specifications 20726/10, 111,365, and 164,178 are referred to.
Patent GB-558926-A (GB)
Title: Improvements in and relating to treating aluminium and aluminium base alloy surfaces in preparation for applying an adherent coating to them
IPC: C23C22/67
Filed: 1942-07-23
Abstract: 558,926. Coating and pickling metals; electrolysis; etching. BOWEN, E. WINDSOR-. July 23, 1942, No. 10315. [Class 82 (ii)] [Also in Groups III, XVI and XXXVI] In the treatment of an aluminium or aluminium base alloy surface, preparatory to applying an adherent coating, the surface is first treated with an alkali metal carbonate-chromate aqueous solution also containing an alkali metal chlorate to produce an oxide coating and, optionally, to etch the surface and then removing the oxide: coating by treating with an aqueous solution of an acid. If a paint, enamel or lacquer coating is to be applied a chromic acid solution is used, but if a metallic coating is to be applied, e.g. an electrodeposited coating of nickel, nitric acid is used. Specification 528,748 is referred to.
Patent GB-1511223-A (GB)
Title: Process for preparing glyoxylic acid
IPC: C07C51/27
Filed: 1977-03-11
Abstract: 1511223 Glyoxylic acid NIPPON GOHSEI KAGAKU KOGYO KK 11 March 1977 [25 Nov 1976] 10375/77 Heading C2C [Also in Division C7] In a process for preparing glyoxylic acid by oxidizing glyoxal with nitric acid, the concentration of nitric acid is maintained at 4 to 10 % by weight of the total reaction system; oxygen or oxygen-containing gas is introduced to the reaction system and a condition so that K L a . P#150, where K L a is a liquid-phase overall mass transfer coefficient (1./hour) and P is a partial pressure of oxygen in the reaction system (kg./cm.<SP>2</SP>) is maintained. Oxygen may be introduced continuously or at intervals and the reaction mixture purified by for example, electrodialysis, ion-exchange resin treatment or distillation.
Patent GB-491103-A (GB)
Title: Improvements in or relating to electrical frequency changing apparatus
IPC: H03C1/52
Filed: 1937-04-12
Abstract: 491,103. Modulating systems. GENERAL ELECTRIC CO., Ltd., and LEY, D. A. April 12, 1937, No. 10385. [Class 40 (v)] In electric modulators or demodulators employing non-linear elements which have a resistance-voltage characteristic substantially linear over some finite portion on which they operate, suppression of many undesired products of modulation is obtained by suitable proportioning of the circuit elements. In a single mesh containing only one rectifier, the total series resistance Ro, excluding that of the non-linear element, in the circuit, is made equal to the resistance R<1> of the element at the mean voltage applied across it. When the circuit comprises two meshes in a balanced arrangement as shown, the inputs 1 and 4 being additive in mesh a and subtractive in mesh b, the following relationship is satisfied: where ka, kb respectively are the slopes of the linear portions of the resistance-voltage characteristics of the rectifiers 10, 11, in meshes a and b. Resistances 12, 13, are employed for fine adjustment of the ratios, and decoupling networks and attenuators 2, 3, 5, 6, 7, 8, are adjusted so that the current in the output circuit 9 is proportional to the difference between the products of external resistance Ro and operating current for each mesh. In addition to the above requirements, each separate mesh may conform to the requirement first stated for a single mesh. A modulator containing four meshes wherein the carrier and signal voltages applied to one pair are equal to, but reversed in phase compared with those applied to the other pair, is considered as a duplication of the balanced circuit already discussed, and similar relations to those already stated are maintained between each mesh of a pair and each pair of meshes. Specification 472,816 is referred to.
Patent GB-608293-A (GB)
Title: Improvements in apparatus for measuring surface roughness
IPC: G01B13/22
Filed: 1946-04-04
Abstract: 608,293. Gauging surface roughness. UNITED STATES RUBBER CO. April 4, 1946, No. 10395. Convention date, June 30, 1945. [Class 106 (ii)] Pneumatic apparatus for gauging surface roughness comprises a conduit in which is a needle valve 11 or the like, means for supplying gas under pressure to the conduit, the outlet of which is connected to a contact plate 14 engaging the rubber &c. sample 16 to be tested, whereby gas escapes between the plate and the sample due to the roughness of the sample, means, such as a manometer 13, 31, for indicating the relative resistance value of the valve 11, and means, such as the manometer 13, 31, for comparing the gas pressure drop across the valve with the gas pressure drop across the test sample. Gas under pressure is supplied through a trap 27 to a pressure regulator 16<1> comprising a container having a weighted lid 20 from which depends a rod 22 carrying a cup 23 which is immersed in a dashpot 25. The outlet of the valve 11 is connected to the manometer 13, 31, which utilizes a light oil, and to the plate 14 which is cylindrical and provided with a cylindrical recess 37. In use, the apparatus is calibrated by adjusting the weights in the cup 23 to regulate the gas pressure, adjusting the needle valve 11 to ensure that the manometer gives readings for a desired range of samples 16 and then substituting for the plate 14 capilliary tubes of known dimensions. In a modification, the pressure regulator is dispensed with and two manometers are used. The first manometer is arranged to show the pressure drop across the needle valve, and the second manometer indicates the pressure above atmospheric on the outlet side of the valve. The second manometer includes a flexible tube to allow vertical adjustment of the manometer for calibration of the apparatus. The contact plate 14 may be shaped to suit curved samples.
Patent GB-128294-A (GB)
Title: Improved Method of and Apparatus for Destroying Aerial Craft.
Inventor: CALTHROP EVERARD RICHARD
IPC: F41H11/04
Filed: 1917-07-20
Abstract: 128,294. Calthrop, E. R. July 20, 1917. Acrial warfare.-A device for destroying aircraft whilst in the air, comprises a self-supporting entanglement which is released from aircraft during flight, and is adapted to be spread over a large area. The apparatus shown in Fig. 1 comprises a parachute 1, preferably of the kind described in Specification 117,092, [Class 4, Aeronautics], a clockwork bomb i, and a coil of light metal barbed wire 2 connected to the bomb and parachute. On dropping the bomb from the aircraft on which it is carried, its weight extends the wire 2 and pulls out the parachute from its casing. The clockwork is started at the same time by means of a lever 10, so that after the whole apparatus has fallen for a predetermined time in the condition shown in Fig. 2, the bomb is automatically exploded by electric or other means set in action by the clock-work, and scatters the lower ends of the wires, leaving the parachute to descend with the wires extended in all directions. Additional short lengths of wire may be arranged around the bomb, for dispersal by the explosion. Shock-absorbing devices may be provided between the various parts of the apparatus. A number of coils of wire, in. terconnected with each other, with several parachutes, and with a clock-work bomb, may be released simultaneously from an aircraft. The wires may be so connected as to assume a ring formation when falling; or they may be so arranged that. when extended, part of the wire hangs below the bomb. Angularly-arranged sails may be provided on the parachutes to cause them to spread apart. In a modification, a number of strands of wire are coiled on rollers on an aeroplane, and weights or bars are so connected to the wires and to parachutes that, when released, the weights unwind the wires to pull out the parachutes, whereby a floating " curtain " is produced, such as is shown in Fig. 11. Explosive charges may be used in this device. The release of the rollers may be effected by clock-work, and the arrangement may be such that the " curtain," instead of being freed, hangs from the aeroplane. The clock mechanism may also be used in this case to fire explosive charges when the airman has abandoned his aeroplane after having set it to ram an enemy machine. Small auxiliary parachutes, Fig. 12, in which the body 31 is capable of a sliding movement along a central cord 33, so as to act in either direction according to the direction of the air currents, may be attached to the lengths of wire in any of the arrangements described. These parachutes may carry explosive charges.
Patent GB-513333-A (GB)
Title: Improvements in milling cutters
IPC: B23C5/24
Filed: 1938-04-06
Abstract: 513,333. Milling-cutters. BRAYSHAW FURNACES & TOOLS, Ltd., and NEWMAN, F. C. April 6, 1938, No. 10487. [Class 83 (iii)] An inserted-tooth milling-cutter has. cutter blades B slidable in and resting on slots in the body A, the bottoms a of 'the slots being inclined some in one direction and some in the opposite direction so that when an adjustment is made by sliding the blades along the slots all the blades are adjusted radially and at the same time some blades have their side edges adjusted in one direction and some in the other so that a constant width of cut may be maintained. The opposite inclinations may be given to alternate slots or two or more adjacent slots may have their bases inclined in the same direction. The blades may be serrated and coact with serrated locking wedges C secured by screws c. The peripheral cutting-edges may be either parallel to the cutter axes or inclined thereto. Either or both of the side and face edges may be angularly disposed.
Patent GB-668182-A (GB)
Title: Improvements relating to exposure meters
IPC: G01J1/42
Filed: 1949-04-20
Abstract: 668,182. Photo-electric exposure meters. PULLIN OPTICAL CO., Ltd., and BAUMGARTNER, W. J. April 20, 1950 [April 20, 1949], No. 10512/49. Class 40 (iii). [Also in XX and XXV] A photographic exposure meter (Figs. 1, 4, 5, 6), comprises a die-cast box 1 with a semicylindrical lens 2 in one wall directing light through a grille 18 to a photo-electric cell 11 connected to a meter movement shunted by a desensitizing resistance in series with a normally closed press switch 16. The pointer traverses a double-calibrated scale 7, which is visible through a window 6 in a top plate 3 screwed to the box. A circular recess 19 surrounding a boss 20 in the top plate accommodates a disc 21 calibrated in aperture numbers, which is fixed by a rivet 22, and is surrounded by a dished frictionally loaded scale ring 27 calibrated in exposure times and manually rotatable by a projecting serrated edge in cooperation with a fixed scale plate 30 calibrated in film speeds, for exposure calculations. A resilient plastic or die-cast cover-plate 26 with apertures revealing the meter window and the calculating scales fits over the front of the instrument to conceal the top plate securing screws, and is secured at one end by a turned under rim 33 engaging a tapered beading 34 of the top plate, and at the other end by a screw 35 having an unslotted head which enters the wall of the box through a deep recess 36 exposing the unthreaded shank, which may anchor a carrying cord 37. Thus unauthorized dismantling is difficult, while for repairs the screw shank may be sheared where exposed to release the cover-plate. For attachment to a wrist strap (Figs. 2, 7), the back of the box 1, has a recess 39 in which is located a stud having a domed T-head 41 insertible between two outwardly bent spring fingers 48 projecting diametrically from the periphery of an aperture 46, surrounded by a raised spring ring 47, in a plate carried by the strap. To attach the instrument, the T-head 41 is pressed into position between the fingers 48 against the spring ring 47 which engages the recess 39, and rotated through 90 degrees so that the arms lock under the fingers. The cover-plate securing screw may engage a cylindrical nut positioned by a plain pin fixed in the rear wall of the recess and entering the unoccupied part of the nut. Alternatively the lower edge of the cover-plate may be formed into a locking tongue, which may be sprung into engagement with a recess in the top plate or the upper surface of the box, and extracted by a suitable lifting tool engaging a notch in the tongue edge. The Provisional Specification describes a meter magnet system wherein a split cylindrical permanent magnet is located inside the jewel-pivoted moving coil by ribs on the diecast movement frame, which is surrounded by a soft iron ring-shaped magnet yoke.
Patent GB-814977-A (GB)
Title: Process for the manufacture of hard metal carbide products
Inventor: NUSSBAUM LEON
IPC: C22C29/00
Filed: 1956-04-06
Abstract: Rutile or titanium dioxide is mill-mixed with the stoichiometric amount of lamp black (both materials minus 300 mesh), and with an appropriate quantity of Ta/Cb carbide in the gravity mill, for not less than 18 hours using CCl4 or similar wetting agent.  The mixture is carburized in a carbon tube resistance furnace by being charged into carbon boats and fed into the furnace at a speed of 1/2 inch per minute the temperature being 2450 DEG  C. and the atmosphere de-ammoniated dried cracked ammonia.  The TiC produced forms mixed crystals with the Ta/Cp carbides under these conditions. Specifications 774,817, [Group II], and 794,602 are referred to.ALSO:A process for making hard metal carbide products comprises making a mixture consisting of 70-40 per cent by weight of powdered mixed crystals of hard metal carbides predominantly TiC and also containing Ta/Cb carbide and 30-60 per cent by weight of a mixture of powdered binder metals consisting of 40-65 per cent Fe with the balance being 15-40 per cent Ni, 5-20 per cent Cr, 5-20 per cent Mn, and unavoidable impurities; heating the said mixture to a temperature sufficient to form a liquid alloy of the metals with one another, but insufficient for liquid to exude from the mixture; cooling, then comminuting, pressing and sintering the product.  Up to 10 per cent Cu may also be included in the binder mixture.  The heating may be in a mixture of nitrogen and hydrogen (de-ammoniated cracked ammonia) or in pure hydrogen; and in an example the temperature is 1550 DEG -1650 DEG C, and the cooled mass is milled in petroleum either to a particle size less than 3m .  Normal sintering techniques are employed, e.g. pre-sinter at 950 DEG -1200 DEG C followed by sintering at 1350 DEG -1500 DEG C. Specifications 774,817 and 794,602 [Group III] are referred to.