baber/WOPTO huggingface dataset:
Patent GB-1115416-A (GB)
Title: A recoil booster for fully automatic,semi-automatic and/or single-shot firing weapons
IPC: F41A21/26
Filed: 1965-11-26
Abstract: 1,115,416. Firearms. RHEINMETALL G.m.b.H. 26 Nov., 1965 [19 Dec., 1964], No. 50365/65. Heading F3C. A firearm adapted to fire blank cartridges comprises a stub barrel 2 and a barrel 3 the latter being slidably mounted within a further barrel (Fig. 1, not shown). The stub barrel 2 is formed with a cartridge chamber 5 which is provided adjacent its forward end with a mouthpiece 7 having a very narrow bore 8. The rear end of the mouthpiece 7 is formed with a profiled recess 9 into which fits the tip of a plastics material projectile. The further barrel towards its forward end is provided with a narrowly bored mouthpiece as also is the forward end of the barrel 3. The further barrel has a plurality of venting bores arranged circumferentially and normally closed by the barrel 3, relative movement of the barrel 3 with respect to the further barrel during firing opening the bores to vent the barrels. The breech block is actuated by means of pressurized gas bled through a duct 6.
Patent GB-1151788-A (GB)
Title: Heat-Shrinkable Cap.
Inventor: DERBYSHIRE RODNEY LAMKIN
IPC: B29C57/10
Filed: 1966-11-10
Abstract: 1,151,788. Moulding heat-shrinkable caps. RAYCHEM CORP. 10 Nov., 1966 [10 Nov., 1965], No. 50392/66. Heading B5A. [Also in Division H2] A heat-shrinkable cap, particularly intended as an encapsulation for cable and wire terminations, is preferably made by extruding on to a polymeric core tube a covering 3 of heat shrinkable polymeric material which is relatively susceptible to cross-linking. The double walled tube so formed is irradiated in cross-linking chamber 4, heated and then expanded and set in chamber 5 and then cut into sections 7. These sections 7 now comprise a relatively infusible outer wall of heat shrinkable material and an inner wall of relatively fusible material and are delivered to moving belts 9a, 9b by which they are each held at one end. The held ends are heated and squeezed, as at 11, with the result that the relatively fusible inner wall 21 flows to close the end and the outer wall contracts to its original diameter as at 15. As an alternative to extrusion, two pre-formed tubes may be bonded together. Cross-linking may be achieved by the inclusion of a chemical cross-linking agent, e.g. a peroxide in the case of polyolefines, instead of by irradiation. The amount of cross-linking of the inner wall may be limited in the case of irradiation by the protection afforded by the outer wall and its greater distance from the irradiating source, i.e. the inner and outer walls may be of the same material or a single tube may be used. Alternatively the inner wall may contain an antirad, with polyethylene, a suitable choice of molecular weight may be made e.g. a melt index of 20 or above for the inner tube and 1À5 or lower for the outer tube, or the outer wall may contain a cross-linking agent such as a polymerizable comonomer. Expansion of the double-walled tubing when at a temperature above its crystalline temperature may be effected by injecting air or liquid into the tubing, reducing the pressure around the tubing, or by the use of gas-generating chemicals. Such methods may be applied to the sections 7, or in this case each section may be expanded mechanically by the use of a mandrel. Preferably expansion occurs within a cylinder of heatconductive material with the tubing being cooled on contact therewith. In an example, tubing having walls of polyethylene of different molecular weights is formed into caps. A further combination mentioned is polyethylene for the outer wall and an ethylene vinyl acetate copolymer for the inner wall. Additionally specifically mentioned as outer wall materials are polyamides, copolymers of ethylene, polypropylene, fluorinated ethylene propylene, PVC, polyvinylidene fluoride, acrylic polymers, polyurethane and ionomers. Numerous materials are mentioned as suitable antirads and cross-linking agents.
Patent GB-1163005-A (GB)
Title: Improvements relating to Semiconductor Devices
IPC: H01L21/22
Filed: 1966-11-10
Abstract: 1,163,005. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 10 Nov., 1966 [30 Nov., 1965], No. 50393/66. Heading H1K. A relatively deep, low impurity-concentration portion 18a is produced in an otherwise shallow, high impurity-concentration diffused P-type first region 18 by diffusing an N-type second region 24 into a portion of the first region 18, causing the P-type impurities therein to be pushed ahead of the N-type diffusion front. Both the regions 18, 24 are diffused from substantially infinite sources, thereby resulting in complementary error function impurity distribution in both regions, but not in the portion 18a. The Si transistor shown is produced in an N-type epitaxial layer 10 on an N+ substrate 12. Boron and phosphorus are used respectively as P-type and N-type dopants, the infinite sources comprising, respectively, atmospheres of boron tribromide or phosphorus oxychloride with oxygen and nitrogen, and the boron oxide or phosphorus oxide layers deposited therefrom on the Si surface. Oxide masks 14, 20 are used, that for the phosphorus diffusion being formed by relatively low temperature deposition from TEOS and oxygen so as not to cause significant further diffusion of the boron-doped layer 18, which may be degenerate facilitating good electrical contact thereto. Diodes may also be made in accordance with the invention.
Patent GB-1293146-A (GB)
Title: Method and unit for conditioning air
IPC: F24F3/14
Filed: 1969-10-15
Abstract: 1293146 Air conditioning units GAS DEVELOPMENTS CORP 15 Oct 1969 [14 Jan 1969] 50679/70 Divided out of 1293145 Heading F4V  The subject-matter of this Specification is substantially the same as that described in Specification 1,293,145, but the claims are concerned with a method of and a unit for air conditioning wherein rotary regenerative thermal and moisture exchangers rotate through a fresh air inlet and a room air outlet passage and the room air passing through the thermal regenerator may be recirculated to the room through the fresh air passage.
Patent GB-1292056-A (GB)
Title: Improvements in industrial lift trucks
Inventor: GOODACRE CECIL
IPC: B66F9/12
Filed: 1969-10-17
Abstract: 1292056 Masted lift trucks LANSING BAGNALL Ltd 9 Oct 1970 [17 Oct 1969] 51017/69 Heading B8H In a fork lift truck in which the load support assembly 16 is connected by a reach mechanism to a support 15 which is movable along guides 12 suspended by means of a turntable from the lifting carriage, as disclosed in Specification 1,100,477, the forks 19 are movable along upright guides 20 in the assembly 16 by means of a ram 24. The ram 24 may be replaced by a screw mechanism driven by an electric motor.
Patent GB-1215846-A (GB)
Title: Improved reversing means for four-stroke internal combustion engines
IPC: F01L13/02
Filed: 1968-10-29
Abstract: 1,215,846. Reversing. UNITED DIESEL AB. Oct. 29, 1968 [Nov. 17, 1967], No. 51162/68. Heading F1K. In a reversible four stroke internal combustion engine means for operating the inlet and exhaust valves and the fuel pumps 13 comprises a cam shaft 14 provided with cams for ahead and astern running which shaft is axially displaceable for reversing. The cams for operating the inlet and exhaust valves of each cylinder are made integral as a cam body 22 having three axially spaced cam surfaces 23, 24, 25. The cam followers 16, 17 for each inlet and exhaust valve are so arranged with respect to the cam body that one of them depending on the axial position of the cam shaft will co-operate with one of the outer cam surfaces, the other cam follower co-operating with the intermediate cam surface.
Patent GB-1072411-A (GB)
Title: Improvements in or relating to delay devices for producing artificial reverberation
IPC: G10K15/10
Filed: 1963-12-31
Abstract: 1,072,411. Artificial reverberation devices; transducers. AKUSTISCHE U. KINO-GERATE G.m.b.H. Dec. 31, 1963 [Jan. 18, 1963], No. 51416/63. Headings H4J and H4R. In an artificial reverberation device, a plurality of helical springs of different diameters are arranged one inside the other. At one end they are connected to a common electromechanical transducer and at the other end they are connected to a common mechanico-electrical transducer. Preferably the ratio of the delay times associated with each pair of springs is an irrational number. Compressional vibrations are imparted to three helical springs 5 (Fig. 1), by a transducer unit A including an exciter coil 1 which energizes a magnetic circuit 2 when an audiofrequency signal U IN  is applied. A bar magnet 3 is accommodated in an air gap and is connected by a stiff spring 4 to the unit housing. The pick-up unit B is similar. The springs 4, 4<SP>1</SP> being stiff, vibrations imparted to the springs 5 reciprocate repeatedly between the ends until they decay. Flexural (transverse) vibrations may be obtained if the springs (4, 4<SP>1</SP>) are leaf springs, Fig. 2 (not shown). Torsional vibrations may be obtained by use of diametrically magnetized permanent magnets (3, 31, Figs. 3, 3a, not shown), of cylidruical form. The springs 4, 4<SP>1</SP> may be leaf springs or helical springs. The entire system may be damped by immersion in oil. Felt damping material (6, 61) may be inserted between each permanent magnet (3, 3<SP>1</SP>) and its associated magnetic circuit (2, 2<SP>1</SP>). A plurality of such delay devices may be arranged in series, Fig. 4 (not shown), or in parallel. The drive unit for producing torsional vibrations may comprise a rotating coil transducer. Another torsional unit uses two concentric delay springs (5<SP>1</SP>, 7), Fig. 5 (not shown).
Patent GB-1362128-A (GB)
Title: Knife sharpening device
IPC: B23D63/14
Filed: 1972-11-08
Abstract: 1362128 Sharpening knives ARMOUR & CO 8 Nov 1972 [8 Nov 1971] 51433/72 Heading B3D A device for sharpening a knife 100, such as a circular skinning knife having teeth used for cutting, tearing or shearing, comprises a table 30 adapted to receive the knife, magnets 41, 42 for attracting the knife to the table to hold the knife in frictional engagement therewith in position for sharpening one section of the knife, and means for moving the knife with respect to the table to present another section of the knife for sharpening. The sharpening is effected by a grinding wheel 13 which is driven by a motor 12 and periodically trued by a wheel 19 rotated by a shaft 17 and gearing 16 from a motor 15, the wheel 19 having adjusting means 21. The table 30 is carried by an arm 31 adjustable in a block 32 mounted on pivots 33 in the base 11 of the machine. The lower position of the table, n which grinding is effected, is determined by abutment with a cam 37 adjustable by a device 38. A hub 39 is provided on the table for engaging the centre hole of the knife to be sharpened, the knife being frictionally held on the table by permanent magnets 41, 42. A motor 45, controlled by a switch 46, drives, through gearing 47, a shaft 48 having three cams 49, 50, 51. Cam 49 bears against an arm on a rod 62 which is guided for longitudinal movement by rollers 63 and has a detent 65 for engaging a tooth of the knife, each rotation of the cam causing the detent to index the knife one tooth. The cam 50 bears on one end of a lever pivoted to the base, the other end of the lever acting on the under side of the table to raise the table from its grinding position determined by the cam 37 during the indexing movement. The third cam 51 acts on a pawl to rotate a ratchet wheel one tooth for each rotation of the cam, the ratchet wheel having the same number of teeth as the knife and rotating a further cam which, after one rotation, actuates a switch to stop the motor 45.
Patent GB-1524874-A (GB)
Title: Optical fibre waveguides
IPC: G02B6/24
Filed: 1975-12-17
Abstract: 1524874 Splicing optical fibre bundles WESTERN ELECTRIC CO Inc 17 Dec 1975 [23 Dec 1974] 51593/75 Heading G2J The bundles 21, 22 are stripped of sheathing and the individual fibres are laid in grooves in a bindable plate 10 initially with their ends overlapping. A cut 24 is made and the loose ends removed. The plate is bent about its longitudinal axis so that the evenly cut ends lie abutting with the fibres coaxial. A device for scoring the fibres is disclosed Fig. 3 (not shown).
Patent GB-1188916-A (GB)
Title: Mechano-Electrical Transducer
IPC: H01L29/84
Filed: 1968-10-31
Abstract: 1,188,916. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 31 Oct., 1968 [17 Nov., 1967], No. 51609/68. Heading H1K. A mechano-electrical transducer device comprises a semi-conductor transducer element body 1, doped with an impurity giving a deep energy level therein and having a metal rectifying contact and a metal ohmic contact, mounted in a casing 3, 4 containing a further solid state element 2 forming part of the transducer circuit. The electrical resistance between the two contacts of the semi-conductor transducer element body 1 varies according to the stress imparted to the rectifying metal contact, and the further solid state element which may be a transistor, controlled rectifier or integrated circuit acts as an amplifier or a switch. In a further embodiment the semi-conductor transducer element body has two differently doped regions, one adjacent the rectifying contact having a higher concentration of the impurity giving deep energy levels than the other adjacent the ohmic contact. The semi-conductor body may be of silicon, germanium, gallium arsenide, gallium phosphide, indium arsenide, indium antimonide, silicon carbide or cadmium sulphide, and the impurity producing the deep energy level may be gold, copper, nickel, cobalt, iron or manganese. The ohmic contact is of gold or gallium and the rectifying contact is of silver.
Patent GB-1537069-A (GB)
Title: Vehicles or containers having sliding walls
IPC: B61D19/00
Filed: 1975-12-17
Abstract: 1537069 Containers WAGGON UNION GmbH 17 Dec 1975 [18 Dec 1974] 51698/75 Addition to 1359102 Heading B8P [Also in Divisions B7 and E2] A cargo container or vehicle such as a railway goods wagon has a sliding wall arrangement in a side wall comprising three sliding wall members 45, 46, the two extreme sliding wall members 45 of which are in accordance with the parent Patent and the central member 46 of which comprises at each edge thereof, which overlaps a respective extreme member 45 when closed, a lever 52 mounted on a horizontal shaft 53 extending longitudinally of the vehicle, each lever being engageable behind a horizontaldetent 55 located in recess 54 of the adjacent extreme member 45, and bellcrank levers 58 pivotally mounted on a lower portion of the central member 46 to be rotatable in unison with the horizontal shaft 53 by an operating device 47, 48, 49, 50, 51, 56, the respective ends of each bellcrank lever comprising a roller 59 and a hook 60 for engagement with a lower longitudinal frame member 3 of the vehicle. Upward extensions of each member 45, 46 carry roller means 23 to engage a rail 28 and bearing means 22 engaging bearer means 15 which are mounted on a shaft 12 to rotate therewith, so that lateral displacement of a wall member from its closed position brings its roller means 23 on to the rail ready for sliding along the vehicle. In operation, the central wall member 46 must firstly be displaced by operation of its device 47 &c to disengage the levers 52 and 58, followed by sliding of member 46 to fully overlap one of the extreme members 45. This member 45 is then laterally displaced through a smaller distance than the central member 46, the upper edge of member 46 being apertured at 63 to accommodate the upward extensions of the extreme member 45, and the two members 45 and 46 may then be slid along in unison. The wall members are sealed in the closed position by metal labyrinth sealing devices.
Patent GB-1200829-A (GB)
Title: Coin sorting and counting machine
IPC: G07D9/00
Filed: 1968-10-31
Abstract: 1,200,829. Sorting and counting coins. F. ZIMMERMANN & CO. 31 Oct., 1968 [4 Nov., 1967], No. 51748/68. Heading G4X. A coin sorting and counting machine com-, prises a rotatable driven plate 4, Fig. 2, forming the bottom of a coin receiving container, and a horizontal coin-sorting passage 33 adjustable to the diameter and thickness of the coin denomination to be counted, and comprising one stationary guide bar 34 and one guide bar 35 adjustable towards and away from the stationary bar, a coin drop-out opening 38, a coin counting mechanism 41, an endless belt 50 extending over the rotatable plate 4 as far as a line 37 and vertically adjustable above the plate to convey coins through the passage 33. The belt 50 is housed in a casing 5 which is normally rotated rightwards about pivots 31 to rest with a screw 6 upon the machines base-plate 18. The adjustable guide bar 35 is fixed to a slidable arm 58 having a toothed rack 60 engaged by a pinion 61 on a spindle 62. The spindle also carries an indented disc 63, Fig. 3, engaged by a spring 65, for selecting a combined height and width setting of the coin passage. A lever 73 pivoted about 72 overlies the rotatable plate 4 and rests with a pin 74, Fig. 9, upon a stepped platform 69 fixed to the arm 58. The pin 74 is pivoted at 76 and is vertically adjusted by a screw 75. The steps on platform 69 correspond to different coin widths, and serve to adjust the height of an edge 79 of the lever 73 above the plate 4 accordingly. The belt 50, which is driven at 1À3 to 1À5 times the peripheral speed of the plate 4, is inclined downwards over the coin drop-out opening 38 by a roller arm 53 pivoted at 54 and having a spring 51 bearing against the casing 5. Belt 50 is driven by a belt 27 communicating with a fixed pulley 26 itself driven by an electric motor. The belt 27 is engaged by a guide pulley 29 which is vertically slidable on a spindle 30. Coins are counted by a star wheel 44 geared to a counter 41. The number of coins to be counted may be pre-set by a known mechanism, whereby the counter switches off the motor. Coins which fall through the opening 38 collect in a drawer 9, Fig. 1 (not shown), and counted coins emerge from an outlet (8).
Patent GB-1466384-A (GB)
Title: Air vent head especially for ships tanks
IPC: B63J2/10
Filed: 1973-11-07
Abstract: 1466384 Venting head MACHINEFABRIEK EN HANDELMAATSCHAPPIJ WINEL BV 7 Nov 1973 [16 Nov 1972] 51767/73 Heading B8V Vented air, e.g. from a ship's tank, passes through a pipe 3a, an arcuate first chamber 4, an aperture 6, a second chamber 5 and apertures 7 to atmosphere. A ball 14 floats to close aperture 6 if water enters chamber 5 through apertures 7.
Patent GB-1218126-A (GB)
Title: Improvements in and relating to optical lens grinding machines.
Inventor: WRIGGLESWORTH STANLEY
IPC: B24B47/22
Filed: 1968-11-01
Abstract: 1,218,126. Abrading. RODWAY OPTICAL INDUSTRIES Ltd. 31 Oct., 1969 [1 Nov., 1968], No. 51798/68. Heading B3D. An attachment for an optical lens edge grinding machine comprises an element 10 capable of deflecting a lens held by the lens holding means of the machine relative to the V-grooved grinding wheel 1 of the machine, the element being mounted on an arm 11 for moving the element between operative and inoperative positions. The attachment is for use with a machine which may have a V-grooved grinding wheel and a straight profiled grinding wheel 2 disposed in a casing 4, 5, 6, 7, the wheels extending through a guard plate 3 and being supplied with water from nozzles 8, 9. The element 10 is in flat form and, in its operative position engages one face of a lens during grinding of its edge by the. V-grooved wheel and is of particular use for grinding offset bevels on thick lenses. The element is carried at the end of the arm 11 which is mounted on a spindle 12 which is movable axially and rotatively under the control of a follower and cam 17, 18 to move the element between the operative position, shown dotted, adjacent one face of the V of the grinding and an inoperative position, shown solid, to one side and below the outer diameter of the wheel.
Patent GB-1394446-A (GB)
Title: Ventilating device for attachment to a motor vehicle window
IPC: B60J1/20
Filed: 1972-11-09
Abstract: 1394446 Ventilators for motor vehicles O FLECK 9 Nov 1972 [9 Nov 1971] 51840/72 Heading F4V A ventilating device for attachment to a motor vehicle side window and shaped to partly cover the window, comprises connected front and rear sections, the rear section 4 lying flat against the upper portion of the pane when closed and sealing against the adjacent top and rear part of the window frame, and the front section 2 being spaced away from the pane except at the edges where it seals against the inclined forward edge of the frame and the front part of the lower edge. The device is held in place by clips 1 and sealed by edge seals 3. The rear part has a seal strip 5. A zone of low pressure forms under the front section 2 which, when the window is opened, extracts air from the vehicle.
Patent GB-1444793-A (GB)
IPC: A23L27/26
Filed: 1973-11-08
Abstract: 1444793 Flavouring compositions INTERNATIONAL FLAVORS & FRAGRANCES INC 8 Nov 1973 [8 Nov 1972 (2) 22 Feb 1973] 51903/73 Heading A2B A poultry flavoured composition is prepared by heating a mixture of an enzymatic digest of the internal contents of poultry eggs, an enzymatic digest of poultry egg yolk or powdered chicken egg yolk with L-cysteine hydrochloride and thiamine or thiamine hydrochloride. The term "poultry egg" includes non- fertilised eggs of chickens, ducks, turkeys, pigeons, geese, quail and pheasants. A list of suitable enzymes which may be used to produce the digest is included in the specification. Additional flavours may be produced by incorporation of amino acids such as alanine, leucine, valine, glutamic acid and di-, tri- or polypeptides; nucleotides such as disodium inosate and disodium guanylate; saccharides such as dxylose, ribose, sucrose and dextrose; C 4 -C 8  alkanones and hydroxy-substituted alganones e.g. diacetyl, acetyl-methyl-carbinol and pentan- 2, 3-dione, C 5 -C 12  aldehydes e.g. n-pentanol, nhexanol, n-heptanol, 2, 4 nonadienal, 2, 4- decadienal and 2, 4-undecadienal. Reaction is preferatbly carried out between 100‹ and 350‹C. and in a large excess of water or fatty medium (beef fat, vegetable fat, chicken fat, dude fat, fish oil or fatty acid glycerides). The flavouring composition may be used per se or mixed with non-toxic edible solvents, thickeners, carriers or extenders.
Patent GB-1127077-A (GB)
Title: Improvements in or relating to propellant bodies
Inventor: OVERSOHL WILHELM
IPC: C06B21/00
Filed: 1965-12-08
Abstract: 1,127,077. Propellant compositions. NITROCHEMIE G.m.b.H. 8 Dec., 1965 [9 Dec., 1964], No. 52139/65. Heading C1D. [Also in Division C3] A solid propellant body having a high burning rate is made by suspending porous granular nitrocellulose in a liquid explosive nitric acid ester of a polyvalent alcohol, and heating the suspension to gelatinize it. Porous nitrocellulose is made by mixing nitrocellulose with common salt, dibutyl phthalate, diphenylamine and graphite, and gelatinizing with a mixture of ethanol and ether; the product is extruded, dried, and extracted with water to dissolve the common salt. KNO 3  or NaNO 3  may be used instead of NaCl. The porous nitrocellulose may be mixed with nitroglycerine and triacetin and the mixture placed in moulds and hardened by heating. A non-porous nitrocellulose material, containing also diethyldiphenylurea, methyldiphenylurea, lead-2-salicylate, lead-2-ethyl hexoate, and polyacetylene, may be used together with the porous nitrocellulose in order to alter the burning rate. The burning rate may also be adjusted by varyng the amount or grain size of the NaCl used to produce porosity, by varying the nitrogen content of the nitrocellulose, or by embedding metal wires in the propellant. The propellant composition may also contain inorganic perchlorates or nitrates, polyurethanes, P.V.C., polybutadiene, hydrocarbons, or carbon black.