baber/WOPTO huggingface dataset:
Patent GB-173777-A (GB)
Abstract: 173,777. Stubbs, E. C. Jan. 7, 1921, [Convention date]. Wire and ribbon resistances, enclosed, cored, and mounted on frames.-In wind-screens of the type described in Specification. 164,435, [Class 20 (iii), Doors &c.], in which the space A<1>, Fig. 3, between the main screen A and a second transparent sheet B is heated by the electric conductors f, Fig. 1, means are provided for taking up the expansion of the conductors due to heating, whereby the conductors are always maintained taut. In the arrangement shown in Figs. 1 and 3, the conductor f at each turn is wrapped alternately around a fixed glass strip b<3> cemented to the sheets A, B and around a movable glass strip b<5> which abuts at its ends against rubber blocks D bearing against ledges d on fixed upper and lower glass strips b, b<1>. In the heated condition the conductors are arranged to be just taut, and on contracting when not heated they compress the resilient blocks D. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, as shown in Fig. 7 (Cancelled), in which the conductors f are separate and fixed at one end, and at the free end are supported by springs h located in the space s between two glass strips b<3>, b<4>, flexible conductors f<2> between the conductors f and a wire w<1> maintaining electric continuity. This subject-matter does not appear in the Specification as accepted.
Patent GB-740407-A (GB)
Title: Process and apparatus for the manufacture of catheters
IPC: B29C48/09
Filed: 1953-06-24
Abstract: 740,407. Making catheters. RUESCH, W. June 24, 1953 [Dec. 5, 1952], No. 17455/53. Class 87 (2). In a process for manufacturing catheters from a kneadable mass of natural or synthetic rubber, plastic or other similar synthetic material, the catheter tube is formed by extrusion through a nozzle over a mandrel reciprocable therein, retraction of the mandrel from the nozzle serving to close the tube and form the catheter head in the same operation and subsequent insertion of the mandrel into the nozzle severing the tube to the required length. The rubber or other material of which the catheter is to be made is fed under pressure through an inlet 5 and is forced through the space 6 between a tapering core 4 and a converging bore in the extrusion head 3. The mandrel 8 has an extension 9 with its end pivoted to a lever 10. After material has been extruded round the mandrel to form a tube of the desired length the lever 10 is moved to retract the mandrel and further extruding material stops the hole in the tube. The mandrel is then moved forward again and breaks away the tube from the material being extruded behind it. The tube is then subjected to further. operations, including the cutting of the eye, to form a catheter in known manner.
Patent GB-422536-A (GB)
Title: Combined induction and arc furnace
IPC: H05B11/00
Filed: 1934-06-13
Abstract: 422,536. Electric furnaces. RENNERFELT, I., 14, Torgerdsvagen, Djursholm, Sweden. June 13, 1934, No. 17489. [Class 39 (iii)] In a combined arc and induction electric furnace, 60-80 per cent of the energy is supplied by the arc heating. The induction heating is sufficient only for agitating the charge and maintaining its temperature. The induction coils may be provided in the usual manner with laminated iron cores and cooling arrangements, and may be constructed to employ various frequencies. A condenser or an overexcited synchronous motor may be used to supply the wattless magnetizing currents. Specifications 135,639, [Class 39 (iii)], and 349,446 are referred to.
Patent GB-574424-A (GB)
Title: Conduit fastener
IPC: F16L3/123
Filed: 1943-10-25
Abstract: 574,424. Earth-continuity couplings. DEHN, F. B. (Adel Precision Products Corporation). Oct. 25, 1943, No. 17558. [Class 38 (i)] [Also in Groups XIV and XXV] A metal clip 1 for securing and also earthing the metal casing of a conduit, is provided with flanges to fit between the flanges of a compressible lining 4, for example, of rubber provided with strip metal 5 which may be doubled in places and pushed through slits in the rubber to provide a good earthing contact. Fig. 3 shows a cross section of the clip &c. in which the clip, which is of channel section, and its flanges 6, are received in the space between outer flanges 7 in the channel section of the rubber &c. lining. In a modification, Figs. 6 and 7, the earthing metal strip 16 is space-wound helically round the peripheral rubber 15 so making earthing contact between the clip strap 12 and the conduit casing 18. The cushion rubber 15 may be cemented or otherwise secured on the clip strap 12. The metal strip 16 or 5 is therefore not under tension when the clip secures the conduit. Fig. 11 shows another modification in which the contact strip 23 is helically wound round the rubber 22, the whole being received in the arcuate sectioned clip 27, all securing the conduit casing 21. Specification 522,908 is referred to.
Patent GB-749048-A (GB)
Title: Improvements in or relating to flight training apparatus
Inventor: CUTLER ALBERT ERNEST
IPC: G09B9/12
Filed: 1954-06-15
Abstract: 749,048. Ground trainers for pilots. COMMUNICATIONS PATENTS, Ltd. June 15, 1954, No. 17561/54. Class 4. Ground-based flight training apparatus comprises a cockpit representing an aircraft which is given angular movements responsive to the forces assumed to be acting on the centre of gravity of the aircraft as a result of movement of the flying controls. Such forces include thrust, drag, lift, and centrifugal forces but not couples. Electric computing means compute these forces and the direction of their resultant, and orientate the cockpit accordingly. Small movements of the aircraft simulated may be reproduced faithfully, while large movements are cut down to limit the maximum angular displacement. The cockpit 3 is universally mounted at 5 and is controlled in pitch and roll by rods 6, 9 eccentrically pivoted to discs 7, 10, rotated by electric motors energized by the computer. As an example, in the case of a properly banked turn, the resultant force on the pilot of a real aircraft is perpendicular to his seat, and the trainer cockpit will not roll, whereas if the turn is not correctly banked, the resultant force on a real aircraft will have a lateral component relative to the aircraft axes, and the training cockpit will roll to give a simulating lateral force on the training pilot.
Patent GB-622725-A (GB)
Title: Process of recovering sterols and like cyclopentanophenanthrene compounds
IPC: C07J75/00
Filed: 1942-12-10
Abstract: Sterols and like cyclopentanophenanthrene compounds in their free form are extracted from waxes, oils or fats in which they occur in their ester form by subjecting the fatty material to a saponification with aqueous barium hydroxide.  The free sterols and like compounds are preferably recovered from the insoluble residue of the saponification by extraction with a solvent such as low molecular alcohols or ketones.  An alternative extraction process is to subject the insoluble residue to steam distillation to distill off the unsaponifiable residue.  The barium hydroxide is preferably used in a concentration of not less than 20 per cent by weight of the reaction mixture.  The compounds to which the present invention may be applied include in addition to sterols also hormones and vitamins which contain the cyclopentanophenanthrene nucleus.  In examples: (1) wood grease is treated with barium hydroxide, and the dried insoluble residue of the saponification extracted with acetone at 60 DEG  C. to give a yield of 30 per cent of cholesterol.  The barium salts which are insoluble in acetone may be treated with hydrochloric acid to liberate the free fatty acids; (2) as in example (1), but extracting with boiling acetone and cooling to 10 DEG  C. to give a precipitate of iso-cholesterol; (3) the filtrate from the iso-cholesterol of example (2) is evaporated to dryness and extracted with methyl alcohol to give pure cholesterol; (4) the fats obtained by solvent extraction of yeast or Aspergillis niger are saponified as in example (1) and worked up to give ergosterol; (5) the oil obtained by the extraction of pregnant mares' urine is saponified as in example (1) to give a yield of the female sexual p  hormone; (6) cod liver oil is saponified as in example (1) to give a vitamin A and D concentrate.
Patent GB-263893-A (GB)
Title: Improvements in, and relating to, the extraction of juice from sugar cane and kindred substances
IPC: C13B10/04
Filed: 1925-07-09
Abstract: 263,893. Maxwell, F. July 9, 1925. Extracting sugar.-In extracting juice from sugar cane &c., the cane is subjected to cyclically repeated groups of operations each comprising crushing, agitating or shredding, or both and macerating steps transposably associated in, near, or d'istant relationship with each other. As shown in Fig. 2, the agitator consists of a rotary hollow cylinder c provided on its surface with disintegrating-elements such as teeth, spikes, or bristles d and mounted on a shaft e behind the upper mill roller a and above the delivery roller b. The cylinder c is of small diameter compared with the rollers a, b; and the shaft e may be driven by a motor supported on the mill framing, or from the mill gearing. The macerating-agent is delivered by a pipe l into the top of a structure j enclosing the rotor c and the portions of the rollers a, b immediately adjacent thereto. The structure j may be shaped as a casing or hood secured to the mill framing and associated with the usual conveyer k. The pipe l is connected to the supply pipe m and is provided along its whole length and at the part of its face nearest the rotor c with a slot n or with a number of apertures. The crushed cane issuing from between the rollers a, b is broken up, scattered, or agitated by the spikes d and simultaneously the fragments are impregnated with the jetted macerating-agent which itself is also broken up and scattered by the rotor. The, pipe l may be situated within a compartment in the structure j and formed with one or more outlets immediately adjacent the space between the top roller a and the rotor c, so that the crushed cane is subjected to the agent before, or almost before, it comes under the action of the rotor c. In another arrangement, Fig. 4, the pipe l is arranged within a chamber q at the lower side of the structure j in the region of the lower part of the rotor c remote from the roller a, and the agent is directed through apertures r upon the underside of the crushed mass immediately it becomes subject to agitation. Fig. 5 shows an arrangement in which the agent is introduced above and below the rotor c. In Fig. 6, a rotor s is provided in connection with the supply pipe m to impart an initial agitation to the agent prior to its delivery to the rotor c. The rotor s is housed in a compartment o of the structure j, the top being slotted at n to receive the agent from a pocket or well v into which the pipe m delivers, and the bottom being slotted at w for the discharge of the agent into the structure j. The rotor c and the macerating pipe l may be situated at a distance from the rollers and from each other. Instead of a rotary agitator, a reciprocating or other kind of agitator may be used; or it may consist of means fur supplying compressed air or other fluid or liquid or a solid medium under pressure and directing it upon the mass of crushed cane. Specification 196,120, [Class 59, Grinding, crushing &c.], is referred to.
Patent GB-827449-A (GB)
Title: Improvements in or relating to the deodorization of exhaust gases
IPC: F02B3/06
Filed: 1958-06-03
Abstract: 4:6 - Dinitro - 2 - acetyl - 5 - t - butyl - m - xylene is added in a proportion of between 0.001 and 0.003% by weight to a hydrocarbon fuel derived from petroleum, e.g. a light petroleum spirit or heavy oil such as Diesel oil, to eliminate the odour of engine exhaust gases.  It may be dissolved in a solvent, e.g. diethylphthalate, dimethylphthalate, ethyl benzene, xylenes, mesityl oxide and ethyl butyrate, before addition to the fuel.
Patent GB-670945-A (GB)
Title: Process of manufacturing cutting out tools
IPC: B21D37/20
Filed: 1950-07-17
Abstract: A hard steel cutting edge of a punch or die is deposited by means of an oxy-acetylene flame and comprises : Carbon 0.70 per cent, tungsten 10-11 per cent, chromium 4 to 4.2 per cent, molybdenum 0.12 to 0.15 per cent, vanadium 0.7 per cent, iron, the balance.
Patent GB-1458496-A (GB)
Title: Method of spinning textile fibres
IPC: D01H4/06
Filed: 1975-04-29
Abstract: 1458496 Spinning yarns E FEHRER 29 April 1975 [30 May 1974[ 17804/75 Headings D1D and D1F In an open-end spinning method wherein fibres are entrained by an air stream and subsequently twisted together and withdrawn as yarn whilst being held e.g. by nip rolls, against rotation, the fibres approaching a collecting surface (which precedes the twisting position and is included in a sharply defined suction zone) form thereon a condensed sliver which is then twisted e.g. by a frictiontwistng tube or belts. The length and width of the suction zone approximately correspond with the maximum fibre lentgh and the diameter of the condensed sliver and air is exhausted from the zone at the same rate as the entraining air stream. In the apparatus shown, fibrous material to be spun is disintegrated by a serrated drum 5 to yield fibres which are entrained by the air stream due to rotation of the drum into a well 6. A collecting surface is formed by a shell 7 of a rotating suction drum housing a tapering suction insert 8 which defines suction zone 2. A twisting device comprises two pairs of endless belts 9 and 10 oppositely moving runs of which engage the sliver to form yarn withdrawn by nip rollers 4.
Patent GB-836325-A (GB)
Title: New camphidine derivatives and processes for their preparation
IPC: C07D221/24
Filed: 1958-06-04
Abstract: The invention comprises compounds of the general formula <FORM:0836325/IV (b)/1> in which R represents an alkyl or dialkylamino-alkyl group where each alkyl group preferably has 1-4 carbon atoms; and acid addition salts and mono- and bis-quaternary ammonium salts thereof; and the preparation thereof by reducing corresponding N-substituted 5-chlorocamphoric acid imides, e.g. with a hydride, particularly lithium aluminium hydride; and, if desired, treating the products with alkylating agents of the general formula Alk-X, in which Alk represents one or two alkyl groups each preferably having not more than 4 carbon atoms and X represents an anion.  N - substituted 5 - chloro - camphoric acid imides are prepared by treating 5-chlorocamphoric acid imide with an alkyl halide or a dialkylamino-alkyl halide hydrohalide in alcoholic alkali metal p  hydroxide solution.
Patent GB-728073-A (GB)
Title: Improvements relating to apparatus for measuring the intervals between electric pulses
Inventor: SHEPPARD ROBERT AUGUSTUS
IPC: G01S13/70
Filed: 1952-07-16
Abstract: 728,073. Radar. FERRANTI, Ltd. Oct. 12. 1953 [July 16, 1952], No. 17924/62. Class 40 (7) In a radar system in which the transmitter 10 is triggered by a pulse generator 11 which also initiates the operation of strobe pulse generator 12 to produce a delayed strobe pulse after a time dependant on the voltage derived from range potentiometer 13 and the strobe pulse is compared with a received echo pulse in discriminator 16 to give an error voltage fed to control the setting of potentiometer 13 to maintain coincidence between the echo and strobe pulses standardizing means are provided for checking and correcting for zero errors in the strobe generator circuits. As shown the error signal from discriminator 16 is applied through amplifier 23 to D.C. motor 24 normally coupled by clutch 31 and output member 34 to a shaft 35 controlling the position of the slider on toroidally wound potentiometer 13. The range indicator 14 is directly coupled to the potentiometer 13. To correct for any zero error in the ranging circuit switch 22 may be manually closed to cause relay K to close contacts K1, K2 and K3. Contacts K1 by means of relay B connect to discriminator 16 the output of standardizing pulses from delay line 21 fed from the transmitter 10 in place of the echo pulses. Contacts K2 energize relay C to cause a fixed potential from potential divider 26 to drive motor 24 and contacts K3 energize the coil of relay D and draw projection 44 into contact with the rim of wheel 41 on the range potentiometer drive. Motor 24 rotates the range drive mechanism until projection 44 drops into notch 42 which it does when the range potentiometer (and indicator 14) are set at the standard value corresponding to the delay introduced at 21. When the stage is reached relay D closes, causing contacts D1 to open and release relay C so that the output of the discriminator once again controls motor 24 and contacts D2 energize coil 40 to cause clutch 31 to move against spring pressure into contact with drive device 33 operating potentiometer 37. Thus if any zero error exists there is an output from the discriminator which is used to drive potentiometer 37 until the error is corrected. Upon release of switch 22 normal operation is resumed. Potentiometer 37 may be arranged in series with potentiometer 13 (Fig. 2, not shown). Instead of a correcting potentiometer 37 the correction may be applied by using drive 33 to control a differential device in the connection between shaft 35 and potentiometer 13. In this variation indicator 14 is directly coupled to shaft 35. Errors due to the variation of the slope of the sawtooth waveform generated in unit 12 may be compensated for by duplicating the apparatus of the invention, each apparatus using a different standard delay, and causing the second error signal derived to correct for slope variation.
Patent GB-1110226-A (GB)
Title: Suspended platform carriage
Inventor: THEOBALD NORBERT
IPC: E04G3/34
Filed: 1965-04-29
Abstract: 1,110,226. Elevated railways; undercarcarriages. MANNESMANN LEICHTBAU G.m.b.H. 29 April, 1965, No. 17982/65. Heading B7L. A guided carriage, for suspending a platform from the roof of a building, comprises a frame 3, carrying a crane housing 5 provided with jibs (not shown) for suspending the platform (not shown), the frame 3 being mounted on castor wheels 4, 4 and 4<SP>1</SP>, of which the wheels 4, 4 are aligned on one side of the frame whilst the other wheel 4<SP>1</SP> is on the opposite side of the frame centrally between the wheels 4, 4 and is connected to driving means (8), Fig. 1 (not shown). Guide wheels 7 on the frame engage a parapet 2 on the roof as the carriage moves thereover and prevent slewing of the carriage due to the drive moment which is eccentrically applied to the frame.
Patent GB-1134602-A (GB)
Title: An improved fastening plate
Inventor: KAHL BERNHARD
IPC: F16B21/20
Filed: 1967-04-19
Abstract: 1,134,602. Nuts. A. RAYMOND. 19 April, 1967 [19 April, 1966], No. 18014/67. Heading F2H. A fastening-plate 10, for a row of studs 15 projecting in a random arrangement through a support surface 17, is provided with at least one row of resilient clamping tongues 11, 12 sheared and bent out of the plane of the plate, the tongues being arranged in pairs, with the two tongues of each pair having spaced facing parallel end edges adapted to allow movement of a stud in one direction therethrough and resist movement of the stud in the opposite direction.
Patent GB-530282-A (GB)
Title: Improvements in or relating to hydraulic power transmitters
IPC: F16D33/14
Filed: 1939-06-20
Abstract: 530,282. Hydraulic power transmission brakes. SINCLAIR, H., and BASEBE, A. C. June 20. 1939, No. 18021. [Class 69 (ii)] [Also in Group XXXIV] A hydraulic torque transmitter of the kind in which an impeller member 10 and a driven member 14 operate in a working chamber bounded by parts 10, 11, 12, 22, and from which fluid can pass through an aperture 27 to a reserve chamber 24, 25, rotating with the working chamber, is constructed with a scooping device 76 for transferring liquid from the reserve to the working chamber, and with a reaction compensating device preferably having the form of a second scoop 86 which is so arranged that the reaction of the rotating ring of fluid in the reserve chamber upon the scooping device 76 is opposed by the reaction of the fluid on the scoop 86. The two scoops are mounted on axes parallel to the axis of the impeller 10, and are converted by gears 87, 88, so that when one is rocked by a lever 29 the other is worked equally and oppositely. When the couple is rotating but not transmitting power the liquid forms a ring represented by circle 53, Fig. 2, in the reserve chamber. To transmit power the scoops are moved to the position indicated by full lines and the liquid passes by both scoops to the working chamber, but mainly by the scoop 76 which is larger. This liquid passes via a non-return valve 75. When the full power is being transmitted the liquid which drains through the aperture 27 is returned by the scoop 86, and passes back to the working chamber by way of a cooler not shown, which is byepassed by the liquid which is returned by the scoop 76. In a modification the scoops instead of being connected by gears are connected by link-and-slider mechanism arranged to give the scoops equal and opposite motions. The invention may be applied to brakes. Specification 493,703 is referred to.
Patent GB-869419-A (GB)
Title: A process for the production of printing blocks, printed circuits and the like by electro-deposition
IPC: H05K3/06
Filed: 1957-06-06
Abstract: 869,419. Electrophotographic processes; photomechanical printing plates. AUSTRALIA, DEPARTMENT OF SUPPLY. June 6, 1957 [June 27, 1956], No. 18037/57. Drawings to Specification. Class 98(2) [Also in Group XVI] Printing blocks, printed circuits and the like are prepared by forming an electrostatic latent image on a film comprising a photoconductor suspended in an electrically insulating base and mounted on a backing, developing said image with a particulate developer substance coated with a resist agent and suspended in an electrically insulating liquid, removing the photoconductor layer from the undeveloped areas and etching the backing so exposed. The photoconductor layer may comprise zinc oxide suspended in an alkyd resin. The developer may comprise aluminium powder coated with Rhodene (a modified alkyd resin) made into a paste with toluene or turpentine and suspended in an insulating liquid. Alternatively, boiled linseed oil may be used as a resist agent. Other developer powders specified are carbon, sulphur, red lead, iron oxide or zinc oxide. The backing may be of zinc or copper and it may be etched with nitric acid or ferric chloride solution respectively. A single solvent may be used to remove the undeveloped areas of the photoconductive layer and for the etching step. The residual photoconductive material and developed image may be removed after the etching step, if desired.
Patent GB-732688-A (GB)
Title: Improvements in and relating to the ventilation of beehives
IPC: A01K47/06
Filed: 1952-07-17
Abstract: 732,688. Beehives. LAWES, G. W. July 15, 1953 [July 17, 1952], No. 18082/52. Class 5 (2). A ventilating device for a beehive comprises a chamber partly or wholly constructed of airpermeable material, there being apertures provided in the side adjacent to the hive large enough to permit the passage of the bees and too large to be blocked by wax or propolis. The chamber may be integral with a frame 10, 11 forming a cover for the hive, being then formed as a space between members 11 and 12 which are covered by perforated zinc 13 on their upper sides and, on their undersides, by plates 18 leaving apertures 17 for entry of the bees. In Fig. 6, the chamber is formed as a box 28 having a perforated cover 30 and a base 29 with apertures 31, the box being attached above, below, or on the side of the hive which is provided with holes to correspond to the apertures 31. Specification 643,836 is referred to.