baber/WOPTO huggingface dataset:
Patent GB-229609-A (GB)
Title: Improvements relating to combined knife and pistol devices
IPC: F41C27/16
Filed: 1924-11-08
Abstract: 229,609. Polhemus, L. E. Nov. 8, 1924. No Patent granted (Sealing fee not paid). Small-arms combined with knives; breech actions, sliding breech-block; stocks; barrels.-A knife is attached to a pistol, below the barrel, in such a way that it can be used while attached to the pistol or can be detached therefrom for use. As shown, the knife 29, of ordinary pocket knife type, is attached at the rear by a pin 33 which forms the pivot of the trigger 32, and at the front by a spring clip 9, Fig. 5, embracing the barrel 2. The pivot pin 33 can be pressed out after the removal of a side cover-plate of the stock. The pistol comprises a barrel 2 and stock 1 made in one piece, and a rotary lock breech-bolt 12 adapted to be operated by the cocking piece 24. The stock is provided with sideplates of hard rubber or the like. The sear 26 is mounted on a blade spring 27 and is engaged by the hooked end 34 of the trigger lever.
Patent GB-1332942-A (GB)
Title: Methods of growing multilayer semiconductor crystals
IPC: H01L29/00
Filed: 1971-04-19
Abstract: 1332942 Semi-conductor devices WESTERN ELECTRIC CO Inc 19 April 1971 [14 April 1970] 26731/71 Heading H1K First, second and third epitaxial layers are grown on a seed of a III-V compound material by successively applying a first solution comprising a first and a second group III element in which the III-V compound is dissolved, a second solution comprising the first group III element in the III-V compound is dissolved, and a third solution comprising the first and second group III elements in which the III-V compound is dissolved, the first and third epitaxial layers having wide band gaps and the second epitaxial layer having narrow band gaps. If the second solution also contains the second group III element it must be in a smaller concentration than in the first and third solutions. As shown, Fig. 1A, a seed crystal 19 of GaAs is mounted in a boat 14 within which is placed a solution holder 15 having recesses 16a, 16b, 16c containing solutions I, II and III respectively. The boat is provided with stops (25), 26 at opposite corners so that by appropriate tipping at predetermined temperatures in a cooling cycle each solution in turn is brought over the seed crystal. The floor of the boat 14 is provided with grooves 18 which remove scum from the solutions when the holder is moved relative to the boat. The furnace is supported by a cradle 22 which has a viewing port 23 located above the seed crystal and this provides a temperature gradient in the solution such that the free surface is cooler than the surface from which the epitaxial layer is grown. This ensures that the solution precipitates to a greater degree on floating nuclei at the free surface to enable very thin layers to be grown on the seed. A thermocouple 21 is used to measure the temperature of the seed. Solution I comprises an excess of GaAs dissolved in Ga and Al and doped with Sn, Si, Te, the deposited layer being of N type  having a wide band gap. Solution II comprises an excess of GaAs dissolved in Ga and doped with Si or Si and Zn preferably compensated, the deposited layer being of P-type GaAs having a narrow band gap. Solution III comprises an excess of GaAs dissolved in Ga and Al and doped with Zn, the deposited layer being of P-type Ga 1-y Al y As having a wide band gap. The resultant device may be utilized as a junction laser or as an optical waveguide. In an alternative apparatus, Fig. 3 (not shown), the solution holder has provision for four solutions and is moved over the seed crystal by means of a push rod. The viewing port is omitted and the temperature gradient in the solutions is obtained by an auxiliary heater positioned below the crystal support. The apparatus may be subjected to mechanical vibration during deposition. The fourth solution is utilized to deposit a layer of GaAs doped with Zn or Ge to facilitate the provision of ohmic contacts which may be produced by evaporation of Cr and Au. The resulting slices may be cut and cleaved to produce laser diodes.
Patent GB-760017-A (GB)
Title: An anti-dazzle and fog penetrating device for vehicle and like lamps
IPC: F21V11/00
Filed: 1953-09-29
Abstract: 760,017. Anti-dazzle vehicle lamps WICKS, S. C. Sept. 15 1954 [Sept. 29, 1953], No. 26754/53. Class 75(4) An anti-dazzle and fog-penetrating device for vehicle and like lamps comprises a cylindrical cage F for the light bulb and having transverse opaque louvre strips B extending over half the circumference of the cage to form, parallel with the light-emitting face of the lamp, circumferential slots, the other portion of the cylinder being in the form of a continuous reflecting surface C of truncated V- or similar shape whose base D is curved upwards at the front end so that when the device is placed in the lamp, rays from the bulb G are screened from direct emergence from the lamp and from the bottom portion of the reflector H and are directed to the upper portion of the the reflector H to be projected from the lamp horizontally and downwardly. The cage is attached by bolts or rivets passing through lugs J to the reflector H or it may be supported by one or two arms from the lamp front. Side wings at the rear of the cage may be provided if required to intercept any rays proceeding from the sides of the bulb and eliminate any lateral dazzle. The slots may be wider towards the rear of the cylinder than they are towards the front. Specifications 380,562 and 527,793 are referred to.
Patent GB-246443-A (GB)
Title: Improvements in electric switches
IPC: H01H1/26
Filed: 1925-10-26
Abstract: 246,443. Castelco Fabrik f³r Elektrische Apparate und Metaltwaren Ges. Jan. 22, 1925, [Convention date]. Switches, quick-break; bases; contacts.-A lever operated switch which is carried by a cover plate 8 comprises fixed and movable spring blade contacts 6, 7 mounted with their terminals 4, 5 on an insulating base 1 which is secured with an interposed insulating plate 9 to the cover 8 by screws 13, 14. The contact spring 7 is depressed by the shaped end of an operating lever 11 provided with an operating handle 12 and secured on a pivot pin 10 held between the plates 1 and 8, the latter being suitably slotted to permit the movement of the lever. The end of the spring 7 is bent over so as to produce a rubbing contact on the spring 6. The lever 11 may be made of in insulating material or a sheet of such material may be interposed between its end and the blade 7.
Patent GB-1269157-A (GB)
Title: Bag dispenser
Inventor: MIERSON AUGUSTUS
IPC: B65D83/08
Filed: 1969-05-27
Abstract: 1,269,157. Packaging bags; boxes. A. MIERSON. 27 May, 1969, No. 26792/69. Headings B8C and B8P. [Also in Division A4] A flat stack of bags 13 have their ends inserted through a transverse slot 16 in a flat foldable elongated inner receptable 14 so that the ends lie within the ends of the receptacle, and the loaded receptacle is laid flat upon a foldable flat bag support member 21-28. The member and loaded receptacle are then folded in the form shown and inserted in a box 11 with the receptacle slot adjacent a bag dispensing opening 19, 20, of the box whereby separate bags may be withdrawn by hand, the support side sections 21, 22 engaging the inner sides of the box. Portions of inner receptacle adjacent slot 16 may extend through box dispensing opening and be adhered to the box top, or portions of the bag support member may be adhesively secured inside the box.
Patent GB-522306-A (GB)
Title: Improvements in or relating to cam mechanism for effecting reciprocating motion
IPC: D03C5/02
Filed: 1939-07-28
Abstract: 522,306. Cam mechanism; loom shedding mechanism. MATTERSON, W. July 28, 1939, No. 26817/38. [Class 142 (i)] [Also in Group XXIV] In a cam mechanism (shown as applied to the shedding mechanism of a loom) a pair of opposed cams 39 act on a roller 34 on a member 17 whereby the member is reciprocated positively. The cam shafts pass through slots 35 in the member 17 and discs 36 on the shafts engage the slots to guide the member. The cam shafts are geared to run in the same direction and they and the holes in the cams are of polygonal or other section to facilitate correct angular setting of the cams without the use of keys. A number of such units are assembled side by side on the cam shafts and mounted at one or each end of the loom. The members 17 are coupled by means of jaws 47 to the heald shafts and the various pairs of cams are shaped to give the required shedding sequence. In a modification, each pair of cams acts on one end of a pivoted lever, the other end of which is coupled to a heald shaft. In a further modification,- adapted to be disposed underneath the heald shafts, the cam shafts are arranged in the same horizontal plane and members, similar to the members 17, are reciprocated horizontally. The members have jaws at each end engaging arms of bell-crank levers, the other arms of which are linked directly to the heald shafts.
Patent GB-954920-A (GB)
Title: Process and cosmetic for artificially browning the skin
IPC: A61Q19/04
Filed: 1961-07-25
Abstract: A cosmetic for dyeing the skin in brown shades having an appearance similar to that obtained by exposure to the sun's rays which comprises (a) erythrulose together with a diluent medium to form a cream or gel; (b) erythrulose, an absorbent for ultra-violet radiation and a diluent to form a lotion, cream or gel; or (c) erythrulose in aqueous solution and containing a skin penetrating agent such as an alcohol or a surface active compound. The composition contains 0.5 to 10% by weight of the erythrulose. It is preferably put up in the form of a dispenser pack wherein the lotion, cream or gel is packed in a pressurized container for the automatic dispersing of the cosmetic on release therefrom. Specified diluents are glycerol, polyglycol and polyethylene glycols of 300-2000 molecular weight.  In examples, mixture of (a) trichloromonofluoromethane and dichlorodifluoro methane; and (b) dichlorodifluoromethane and dichlorotetrafluoroethane are used as propellants.
Patent GB-923070-A (GB)
Title: Stator winding structures for electrical rotating machines of the flat annular air-gap type
IPC: H02K3/26
Filed: 1959-08-06
Abstract: 923,070. Dynamo-electric machines h ving planar air-gaps and printed windings. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 6, 1959 [Aug. 13, 1958], No. 26941/59. Class 35. In a stator winding structure for a flat annular air-gap type of A.C. electrical rotating machine, comprising two sets 12<SP>1</SP>, 12<SP>2</SP> of halfturn conductors printed over respective surfaces of an annular insulating support, each conductor extending between points near the inner and outer peripheries of the support and being extended to terminating strips 113, 114 the ends of which are superimposed at least partially upon corresponding ends of those of the other set of the winding for electrical connection therebetween, some 217<SP>1</SP>, 217<SP>2</SP> of the strips on both sides of the support are radiallydisplaced and have their extremities circumferentially displaced from other strips 114, and at least an end one 215A, 215B of the displaced strips 217<SP>1</SP>, 217<SP>2</SP> in each set is left unconnected to other strips but forms a current supply terminal. These end strips are further radiallydisplaced as shown, and intermediate the end ones there may be additional further radiallydisplaced strips 215 connected to corresponding ones of the other set, e.g. by welding or brazing. The support may be of plastic foil. One face of the structure is secured, e.g. by glue to an annular magnetic stator disc, and the rotor may comprise a wound strip magnetic core provided on one face with slots in which a radial squirrel cage is cast. Specifications 874,394 and 888,515 are referred to.
Patent GB-616504-A (GB)
Title: Improvements in or relating to arrangements for controlling electric alternating current motors
IPC: H02P25/24
Filed: 1946-09-09
Abstract: 616,504. Automatic control systems. ELECTRO METHODS, Ltd., and TWEEDY, S. E. Sept. 9, 1946, No. 26987. [Class 38 (iv)] [Also in Group XXXVII] In an automatic control system employing a servomotor of the split-phase induction type, an adjustable inductance 4 is connected in series with a winding 1 of the motor to control the torque and direction of movement thereof and an additional inductance 41, the value of which lies within the range of adjustability of the inductance 4, is in series with a winding 2 of the motor. When the inductance 4 is adjusted to equal the inductance 41 the currents in the windings 1, 2 are in phase and the motor will not start and any variations in the supply frequency within a predetermined frequency range will not cause the motor to start. The motor can be caused to rotate in one or the other direction by increasing or decreasing the inductance 4. The adjustment of the inductance 4 may be carried out in any known manner, e.g. by pre-magnetization in response to an electrical signal derived through a magnetic amplifier from a photo-electric cell or thermo-couple, the motor operating upon the signal-producing agency, for example, to keep it within limits.
Patent GB-173302-A (GB)
Title: Improvements in pianos, piano players and player pianos and the like
IPC: B60B33/06
Filed: 1920-09-23
Abstract: 173,302. Watts, W. S., and Sebestik, G. Sept. 23, 1920. Pianoforte and like cases.-Means for detachably securing a toe to a piano or similar instrument comprises an angle-plate consisting of a side flange 1 and a bottom flange 2 secured to the piano and provided with one or more bosses 3, 4 adapted to receive a pin 5 secured to the toe. Part of the pin is tapered and engaged by a boss 13 having a projecting flange 14, through which pass screws 16 securing the pin to the toe. One end of the pin is threaded to receive a nut 17 whereby the pin is held in position after insertion through the bosses 3, 4. To take the weight of the piano when the toe is removed, a screw-threaded support 18 is provided which passes through a boss on the angle-plate.
Patent GB-796627-A (GB)
Title: Improvements in or relating to detergent bars
IPC: C11D10/04
Filed: 1956-09-05
Abstract: A milled detergent bar comprises (a) a sodium soap generally present to the extent of at least 10 per cent, usually 10-35 per cent; (b) a solid anionic synthetic detergent comprising a watersoluble alkali-metal salt of an organic sulphuric reaction product, generally present to the extent of 15-40 per cent; and (c) 15-70 per cent, generally 15-45 per cent, of a non-waxy starch, preferably oxidized starch, which has been so gelatinized that anisotropy has disappeared.  The soap is suitably a coconut or tallow soap or a mixture of such soaps, and may additionally incorporate potassium, ammonium or substituted ammonium soaps in amounts of 5-10 per cent by weight of the sodium soap. Particularly suitable anionic detergents are the sodium salts of the alkyl sulphates, the alkyl glyceryl ether sulphonates, and the sulphated reaction products of ethylene oxide with fatty alcohols, but others which may be used are the alkyl monoglyceride sulphates, the alkyl monoglycol sulphates, the alkyl monoglyceryl sulphonates, the acyl isothionates, the N-acyl methyltaurines, the alkyl sulphoacetates, the N-alkyl hydroxyacetamides, and the alkylbenzene sulphonates.  Non-ionic detergents may also be included in limited amounts.  The total amount of detergent and soap may be 25-65 per cent, preferably 35-65 per cent, and moisture may comprise 5-15 per cent.  Small amounts of perfume, sodium tripolyphosphate, calcium or magnesium soap and also of a fatty alcohol (as a suds improver) may be incorporated, and additionally the compositions generally contain small quantities of sodium chloride and sulphate as impurities.  The bars may be prepared by a process comprising heating and agitating the starch in a solution of the anionic detergent, rupturing the starch, for example in a homogenizer, and then further heating it, for instance in a spray tower, until anisotropy disappears and the excess water is driven off from the solution, and thereafter adding the other ingredients to the dried mix, followed by milling and extruding the mix into bars.  Alternatively both the rupturing and further heating process may be performed on a steam-heated roll.  Yet again, the starch may be gelatinized by pre-cooking before it is mixed with the other ingredients.  The sodium soap may be added either to the solution of synthetic detergent, or to the dried mix, or partly to both.  Specification 791,415 is referred to.
Patent GB-683134-A (GB)
Title: Improvements in or relating to centrifugal governors for engines
IPC: G05D13/08
Filed: 1949-10-24
Abstract: 683,134. Centrifugal governors. COCKBURNS, Ltd., RODGER, J., and GRANT, T. Oct. 23, 1950 [Oct. 24, 1949], No. 27206/49. Class 57 A centrifugal engine governor comprises. a plurality of flyweights 5 carried by bar springs 3 extending tangentially from sockets 4 disposed around the periphery of a ring member 1 which is adapted to be clamped to an engine shaft 2; the weights constitute valve elements which control the pressure of a fluid from an external source supplying means controlling the operation of the engine. The weights carry pins 8 projecting into holes 7 in a peripheral ring 6 which may be rotated relative to the member 1 for varying the effective length of the springs.
Patent GB-408212-A (GB)
Title: The manufacture of polymorphous substances in a distinct crystal form
IPC: C01F7/021
Filed: 1932-09-30
Abstract: The manufacture of a polymorphous substance in a distinct crystal form is effected by mixing therewith a different substance having the same crystal structure as that desired for the polymorphous substance and heating the mixture to the necessary temperature.  Alternatively, a compound which on heating decomposes to give a substance of the required crystal structure may be used for mixing with the polymorphous substance.  Admixture may be effected before or during calcination; or in a two-stage heating process at the end of the first stage.  In one example, dried titanic acid hydrate, consisting of anastase crystals, is converted wholly to rutile by heating at 900 DEG  C. for one hour in admixture with stannic oxide or a tin salt such as the chloride which is transformed into stannic oxide by heat; in a second example, using manganous sulphate or other manganese compound giving manganous oxide on heating, the conversion is effected at 800 DEG  C.  In a third example, aluminium oxide or a compound such as ammonium alum yielding it on heating is transformed into corundum, say at 1150 DEG  C. by heating with vanadium sesquioxide, ferric oxide or hydroxide, or iron alum.  In a fourth example, precipitated zinc sulphide is heated with cobalt sulphate or another compound giving rise to cobalt sulphide and the wurtzite formed above 600 DEG  C. is stable between 700 and 1000 DEG  C.  The cobalt sulphide may be replaced by iron or nickel sulphide.
Patent GB-520626-A (GB)
Title: Method and apparatus for the electromagnetic separation of materials
IPC: B03C1/14
Filed: 1938-09-19
Abstract: 520,626. Magnetic separators. ELLIS, L. S. E. (United States Steel Corporation). Sept. 19, 1938, No. 27287. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 23, 1939.] [Class 72] In the electromagnetic separation of materials, a suspension of the material is flowed under hydrostatic pressure in a container through a magnetic field projected through the suspension transversely to the direction of flow by means of magnetic poles situated outside the opposite walls of 'the container and progressively moving the attracted particles along the inner surfaces of the wall and out of the path of the flow of the suspension into a separating chamber or chambers substantially closed to the flow of the suspension therethrough. A plurality of magnetic fields at.different levels may be provided. In the form shown in the Figure, in which two horizontal magnetic fields are used, the suspension is fed by a pipe 29 into two compartments formed by a partition 4 in a container 3 which is provided with arcuate recesses in opposite side walls, in which are mounted rotating pole ends 2 of poles P. P<SP>1</SP> which are energized by windings C. The magnetic material attracted by the ends is moved progressively down the arcuate surfaces of the container 3 into channels 8, 8' and thence by conduits 20, 20<SP>1</SP> into channels 9, 9' and so into receptacles 21, 21<SP>1</SP>. The upper walls 12 are extended upwardly to lie close to the arcuate wall of the container 3 and to assist the separation and to prevent the entrance of non- magnetic particles into the channels 8, 8', a supply of water in counter current to the flow of the suspension is' supplied to the latter by pipes 18, 18<SP>1</SP> which are fed from tanks 13. Additional magnetic material is attracted by the lower pieces 2', similar to the pieces 2 and such matter passes into the conduits 9, 9<SP>1</SP> and so on to the'receptacles 21, 21<SP>1</SP>. The solid material in these receptacles is removed by the operation of rotary valve 23, and any liquid removed thereby may be replaced by water from a reservoir 26. Specification 462,912 is referred to.
Patent GB-603364-A (GB)
Title: Improvements relating to hydraulic accumulators
IPC: F15B1/24
Filed: 1945-10-18
Abstract: 603,364. Hydraulic accumulators. ELECTROL, Inc. Oct. 18, 1945, No. 27422. Convention date, Oct. 27, 1944. [Class 69 (ii)] [Also in Group XXVI] An accumulator of the gas loaded type comprises a cylinder 10 provided at its midportion with a vent (or vents) 21 to the atmosphere, the vents opening from a reduced part of a piston 18, of more than half the length of the cylinder, which is fitted at its ends with toroidal resilient rings 20, 20<SP>1</SP> that engage the cylinder walls on opposite sides of the vent 21 in all positions of the piston 18. Gas is introduced through a check valve 15 in one of the cylinder caps 12.
Patent GB-710521-A (GB)
Title: Apparatus for producing textile yarn
IPC: D01H1/00
Filed: 1951-11-22
Abstract: 710,521. Spinning yarns; carding engines. LUTTGEN, W., [trading as LUTTGENKOMMANDIT-GES.]. Nov. 22, 1951 [Nov. 24, 1950], No. 27481/51. Classes 120(1) and 120(2) In apparatus for producing textile yarn, the raw fibre material is first carded on a carding machine to produce slubbings 1 which are then directly and continuously fed to spinning units disposed in two rows converging in the form of a V in a direction away from the carding machine. As shown, the slubbings are conveyed directly from the carding machine condenser 2 by guide means comprising horizontal rollers 5 and endless tapes to a series of driven rollers 3 located above and between the two rows of spinning units each of which comprises drawing mechanism 4, a reciprocating tube 9 or a spinning bell individually driven from below by a motor 15. The slubbings pass from roller 3 down tubes 9 to be cross-wound centrifugally in bells 8. Because of the V-shaped arrangement of the spinning units, each slubbing travels in a straight line along rollers 3 to its respective spinning unit. The spinning units may be provided by a two-sided spinning machine or by two single-sided machines.