baber/WOPTO huggingface dataset:
Patent GB-799196-A (GB)
Title: Improvements in or relating to an automatic control device for gearboxes
IPC: F16H61/00
Filed: 1956-08-10
Abstract: 799,196. Controlling change-speed gearing. REGIE NATIONALE DES USINES RENAULT. Aug. 10, 1956 [Aug. 11, 1955], No. 24588/56. Class 80 (2). In automatic control means for change-speed gearing wherein a succession of current pulses are fed to a relay winding 6 by alternately charging a condenser 10 from a battery 5 and discharging it to the relay through contacts operated by the output shaft 1a, so that the mean intensity of the current in the winding is proportional to the speed of the shaft and the relay acts to energize a gear-change coil 9 at a predetermined speed, as in Specification 769,862, the condenser 10 is carried by a bar-type commutator 1 rotating with the shaft 1a. In Fig. 1, one plate of the condenser 10 is earthed and the other is connected to the commutator bars, which co-operate with brushes 3, 4 connected to the battery 5 and the winding 6 respectively. A variable resistance 11, shunted across the winding 6, is controlled by the accelerator, so that the speed at which gear changes occur depends on the engine load. In one modification, the condenser plates are connected to alternate commutator bars, while in another modification the commutator carries two or more condensers each having its plates connected to opposite bars. Fig. 4 shows a supplementary winding 16 for the relay, acting in opposition to the winding 6 and connected directly to the battery 5, the variable resistance 11 being in series with the winding 16, so that the speed at which the relay operates is substantially independent of the battery voltage.
Patent GB-599649-A (GB)
Title: Improvements relating to tubular apparatus
IPC: F22D1/02
Filed: 1945-09-22
Abstract: 599,649. Tube closures. PARRIS, C. W. Sept. 22, 1945, No. 24600. [Class 99 (ii)] A cap or cover 6 for tubular apparatus is fitted to a tube 2 by means of a butt joint, a collar 1 being formed around the end of the tube having a recess 5, which, together with a corresponding recess 8 in the cap, forms a seating for a metal cup ring 16, with a flexible edge 17 (such as that described in Specification 485,291), the collar and the cap being held together by a split ring 11, which has internal surfaces conforming with the inclined surfaces 3 and 10 of the collar and cap, and which can be tightened by bolts 14.
Patent GB-616012-A (GB)
Title: Improvements in or relating to photo-electric apparatus
IPC: H03F1/36
Filed: 1946-08-19
Abstract: 616,012. Thermionic valve amplifying circuits. PHILIPS LAMPS, Ltd. Aug. 19, 1946, No. 24611. Convention date, Dec. 4, 1942. [Class 40 (iii)] [Also in Group XL (c)] A photo-electric cell F is illuminated by light greater than that normally permissible and its output is applied to an amplifier V with negative feed-back T.C. so that the current through the cell is reduced to that normally permissible, thus improving the signal/noise ratio. The feed-back may be applied to a grid in the cell, Fig. 2, (not shown). Specification 394,121 is referred to.
Patent GB-726807-A (GB)
Title: Simultaneous oxidation and halogenation of steroids
IPC: C07J5/00
Filed: 1952-10-01
Abstract: The invention comprises 4-chloro-21-acyloxy-17a  - hydroxypregnane - 3 : 11 : 20 - triones wherein the acyloxy group is derived from an aliphatic carboxylic acid containing from one to eight carbon atoms inclusive, and a process for the concurrent oxidation and halogenation of a 21 - acyloxy - 3 : 17a  - dihydroxypregnane - 11 : 20 - dione to yield a 4 - halo - 21 - acyloxy - 17a -hydroxypregnane- 3 : 11 : 20-trione which comprises reacting the dione with N-bromoacetamide, N-bromosuccinimide, N-chlorosuccinimide, 3 - bromo -5 : 5 - dimethylhydantoin or 1 : 3 - dibromo - 5 : 5 - dimethylhydantoin in an inert solvent, preferably at a temperature between 15 DEG  and 40 DEG  C.  Specified solvents are dioxane and tertiary alkanols; tertiary butanol, containing water from traces to about 18 per cent by volume being preferred.  In examples: (1) 21 - acetoxy - 3a ,17a  - dihydroxypregnane - 11 : 20-dione in aqueous tertiary butyl alcohol is treated with N-bromacetamide to give 4-bromo - 21 - acetoxy - 17a  - hydroxypregnane - 3 : 11 : 20-trione; (2) similar treatment with N-chlorsuccinimide yields 4 - chloro - 21 - acetoxy-17a  - hydroxypregnane - 3 : 11 : 20 - trione.  Other examples repeat (1) replacing N-bromacetamide by 3-bromo-5 : 5-dimethylhydantoin; 1 : 3 - dibromo - 5 : 5 - dimethylhydantoin and N-bromsuccinimide; (3) 21-acetoxy-3b  : 17a -dihydroxypregnane-11 : 20-dione is treated with N-bromacetamide to yield 4-bromo-21-acetoxy-17a  - hydroxypregnane - 3 : 11 : 20 - trione. Further examples of 4-halo compounds in which the 21-acyloxy group is formyloxy and propionoxy to octanoyloxy are listed.
Patent GB-325779-A (GB)
Title: Improvements in methods for end gating and moulding malleable cast iron boot protectors and the like
IPC: B22C7/04
Filed: 1929-08-13
Abstract: 325,779. Giles, W. T. Aug. 13, 1929. Moulds.-In casting boot protectors 4 &c. of malleable cast iron the number of articles per given area of mould is increased by close spacing along the spray 2 and end gating 3 as shown.
Patent GB-393809-A (GB)
Title: Improvements in metal bound boxes and the like
IPC: B65D6/00
Filed: 1932-09-05
Abstract: 393,809. Metal-bound collapsable and other boxes. RICE, F. J., and AUSTRALIAN BOX MILLS PROPRIETARY, Ltd., White Street, South Melbourne, Australia. Sept. 5, 1932, No. 24720. [Class 18.] Collapsable and other boxes &c. are provided at the corners with corner joints consisting of an angular metal binding-strip 7 stepped at 7c secured to the edge of one wall so as to form a channel 9, within which fits a second angular strip 11 secured to the edge of the adjacent wall, fastenings such as staples 8, 12 being used to secure the strips in place. The strips 7 form part of flexible metal strips connecting the bottom with the opposite sides and lid, the ends 6 being arranged as shown to complete the box. In order to held the box closed the two ends of each of the strips 7 may be rolled together as shown in Fig. 5.
Patent GB-833081-A (GB)
Title: Improvements in or relating to a vignette printer
IPC: G03B27/475
Filed: 1957-08-06
Abstract: 833,081. Photographic vignetting devices. C-M EQUIPMENT CORPORATION. Aug. 6, 1957 [Dec. 20, 1956], No. 24761/57. Classes 97(1) and 98(2) A vignette printer comprises lens means to project rays from a light source on to the margin of a raw positive film, one or more vignetting masks, and means selectively to interpose a mask in the path of the rays so as to partially block them and thus cast or form a vignetting band on the film. As shown, light from a source 28 is directed through a filter 30 on to a mirror 29 and thence through a condensing lens 31 and an objective lens 32 to impinge upon the margin of a kinematograph positive film 17 continuously passing through the device. One of several vignetting masks 33 each of different shape may be interposed to intercept partially the light beam and thereby a vignetting band on the film adjacent the perforations thereon. An identical system is provided on the opposite side of a screen 27 to provide a vignetting band on the other film margin if necessary. In a further embodiment the vignetting printer is combined with a device for continuously printing on to the vignetted print from a negative film which carries metal clips on its periphery which may be "read" by means of a tape reader device to bring selectively into use one of the vignetting masks 33 by means of solenoid system actuated by the tape reader. Thus three films comprising a panoramic system may be projected on to a screen with the overlapping regions of the three projected partial pictures compensated by the vignetting. Specification 826,422 is referred to.
Patent GB-1246890-A (GB)
Title: Internal combustion engine combustion chambers
IPC: F02B23/08
Filed: 1969-05-15
Abstract: 1,246,890. I.C. engine combustion chambers. DAIMLER-BENZ A.G. May 15, 1969 [May 17, 1968], No.24858/69. Heading F1B. In a mixture-induction spark-ignition overhead valve engine with a swirl about the cylinder axis imparted to the incoming charge and a spark-plug 5 eccentric to the cylinder centre, the combustion chamber is of greatest depth in the region of the spark-plug and decreases in depth in the direction of charge swirl. The piston 2 has a depression 3 shaped as indicated by the contour lines 6 to provide a combustion chamber which decreases in depth in the direction (7), Fig. 3 (not shown), of charge swirl and the lines of propagation (9) of the flame front correspond substantially to the contour lines. The piston depression (6), Figs. 4 and 5 (not shown), may have an outer rim which at least partially lies in a common transverse plane to the piston.
Patent GB-951081-A (GB)
Title: Vehicles for travelling over land and/or water
Inventor: RIDDLE LAVIS ALBERT HENRY
IPC: B60V1/00
Filed: 1959-07-21
Abstract: 951,081. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. July 11, 1960 [July 21, 1959], No. 24989/59. Heading B7K. In a vehicle supported by a gaseous cushion contained by a curtain of fluid issuing from a peripheral supply port in the bottom of the vehicle, at least part of the curtain forming fluid being recovered through at least one recovery port, the recovered fluid issuing from at least one transfer supply port; the fluid to the supply port is supplied through a tubular supply duct having its longitudinal axis substantially parallel to the periphery of the bottom of the vehicle, and the fluid recovered through the recovery port is transferred to the transfer supply port by a transfer duct which is part annular in vertical cross-section and partially surrounds a supply duct. The vehicle shown in Figs. 1 and 2 is approximately oval in plan form and comprises body 1 and superstructure 2. Midway along each side of the vehicle are positioned vertical air intakes 3 and 4, each housing a propeller 5 which propellers deliver air to two supply ducts 7 and 8 formed in the body 1 adjacent and parallel to the periphery thereof, each duct extending from its respective intake to terminate adjacent the other intake. A continuous annular supply port 9 is formed in each duct 7 and 8 and, as shown in Fig. 2 (a section on A-A of Fig. 1) an annular recovery port 10 is spaced inboard of and parallel to port 9. Port 10 is connected by a transfer duct 11 to a part-annular transfer supply port 12 which is part annular in cross-section and partially surrounds the respective duct 7 or 8. The curtain is of simple form in way of the air intakes 3 and 4, and in these regions it is strengthened by increasing the local mass flow. The ports 10 and 12 can be continuous round the periphery, though the recovered air will need to be diverted round the air intakes. When applied to a vehicle having side walls to enclose the air cushion, the invention may take the form shown in Fig. 4 wherein each side wall structure 21 comprises a rearwardly-tapering supply duct 25 formed with a supply port 31 having guide vanes 37, the air being recovered through port 32 and transfer duct 26 to reissue through transfer supply port 33. A vehicle embodying such a construction (Fig. 3, not shown) is described as having an elongated body 20 with a propeller mounted substantially horizontally at the forward end of each duct 25, the ducts being connected at each end of the cushion by transverse ducts provided with supply ports for forming transverse fluid curtains. The undersurface of body 20 may be formed with a buoyancy compartment 22. Specifications 854,211, 919,350, 935,823, 935,824, 935,826 and 944,501 are referred to.
Patent GB-408508-A (GB)
Title: Improvements in electric apparatus for heating and storing water
IPC: F24H9/20
Filed: 1933-09-11
Abstract: 408,508. Heating water by electricity. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Sept. 11, 1933, No. 25106. Convention date, Oct. 19, 1932. [Class 39 (iii).] In an electric water heater provided with an internal receptacle 7 containing the heating element 8 and supplied with cold water under the control of a valve 5 operated by a thermostat 6, the supply of cold water is led in to the bottom of receptacle 7 by pipe 11. A second thermostat 4 is provided to control the heating current.
Patent GB-726300-A (GB)
Title: Improvements in or relating to valves having threaded valve operating spindles
IPC: F16K27/08
Filed: 1953-09-11
Abstract: 726,300. Stop valves. DEWRANCE & CO., Ltd. Sept. 11, 1953 [Sept. 13, 1952], No. 25167/53. Class 136. A screw-actuated stop valve comprises an operating spindle 6 passing through a stuffing- box 4 and a yoke 15 removably mounting an internally-threaded bush 13 co-operable with the spindle. The yoke 15 has prongs 19 secured in bores 20 in the casing flange 21 either by pins 22, as shown, or by nuts on screw-threaded extensions of the prongs. A screw-threaded extension 25 of the bush engages a nut 26 which in turn engages the gland ring 27 whilst a loose ring 9 in the base of the stuffing-box permits withdrawal of the valve head 7 carried by the spindle through the box. Dismantling of the valve is carried out by withdrawing the nut 26 along the extension 25 and then removing the pins 22. The spindle is then rotated in a valve closing direction to lift the yoke away from the casing. Upon removal of the handle 8 the yoke and bush may be removed from the spindle and thence the head 7, ring 9, spindle 6 and packing withdrawn from the casing.
Patent GB-1016115-A (GB)
Title: Improvements in or relating to loudspeaker arrangements
IPC: H03F1/36
Filed: 1964-06-18
Abstract: 1,016,115. Loud-speakers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 18, 1964 [June 21, 1963; Sept. 26, 1963], No. 25283/64. Heading H4J. The drive portion of a loud-speaker diaphragm 1 is attached to the base of a conical member 8, the apex of which is secured to a transducer 6 for producing a voltage output corresponding to the acceleration of the drive portion. The voltage output is fed back degeneratively to an amplifier 4 controlling the loud-speaker. The transducer 6 is preferably of piezo-electric crystal material. The conical member 8 points in the direction of radiated sound and is rigid axially but flexible radially, the latter flexibility preventing transmission of radial forces from the diaphragm 1. At its lower end the conical member 8 is closed by a plate 10 so that substantially no pressure variations are produced in the air surrounding the transducer 6. The output of transducer 6 is applied to a network 7 which integrates oscillations of frequency greater than a frequency equivalent to a wavelength equal to one half the circumference of the diaphragm 1. Network 7 passes lower frequencies unaffected. The output of network .7 is applied to amplifier 4 as a negative feedback voltage which depends substantially linearly on the square root of the sound energy over the entire frequency range. The loudspeaker is of the moving coil type and the ratio of the masses of the transducer 6 and coil 3 is less than 1: #10. The conical member 8 is of aluminium and is connected to earth to avoid induction of ripple voltages in the transducer 6.
Patent GB-1471467-A (GB)
Title: Vehicle steering lock
IPC: B60R25/021
Filed: 1974-06-07
Abstract: 1471467 Preventing unauthorized use of vehicles D ARMAN 7 June 1974 25320/74 Heading B7J [Also in Divisions E1-E2 and H1] A vehicle steering lock comprises a slidable locking latch 26 adapted to engage a recess D in a steering column C and may be combined with an electrical ignition switch (accommodated at E, Fig. 4, but shown separately on Fig. 19 merely for convenience), rotation of a key 40 in a recess therefor in a lock cylinder 39 causing longitudinal locking or unlocking movement of the latch 26 and simultaneous rotation of a rotor 54 within the switch, the rotor 54 being fast with a bush 47 carried by a shaft 46 which is fixed to the cylinder 39 for rotation therewith. The cylinder 39 carries a collar 37 defining a cam which acts on a follower projection 36 of the latch 26, the latch also having a stop projection 35 co-operating with a cylindrical member 42 which is also acted on by a spring- biased slidable plate 43 and a pivoted lever 31 of which end 31a protrudes into the recess for the key 40. On retraction of latch 26, lever 31 and projection 35 force member 42 upwards and into a recess 31d of lever 31, after which spring 45 acting on plate 43 pushes member 42 back into its original position in which it prevents return of the projection 35 to thus hold the latch 26 in its retracted position, Fig. 5 (not shown), in which it is also retained by engagement of an eccentric 46b beneath the end of the latch. A torsion spring 41 surrounding the cylinder 39 causes return thereof from a "Start" position to a "Run" position after ignition has been effected via basculating contacts 64 in the switch which connect fixed contacts 59 &c. The contacts 64 are rockably carried intermediate their ends by a cylindrical body 53 which can slide but not rotate within stator 52 and are acted on by springs 65 and radial pushers 66 which extend through member 53 into contact with grooves 54b in the rotor 54.
Patent GB-1422795-A (GB)
Title: Antiseptic and non-toxic substance and a method of making the  same
IPC: C07K14/76
Filed: 1972-05-31
Abstract: 1422795 Antiseptic composition J BUNYAN 29 May 1973 [21 May 1972] 25349/72 Heading A5B [Also in Division C3]  An antiseptic composition effective in controlling or preventing infection in wounds consists essentially of the reaction product obtained by mixing together a protein and a substantially stoichiometric amount of an aqueous solution of a hypochlorite. Lithium sodium or calcium hypochlorite solutions may be employed. The protein may be human or animal skin tissue, subcutaneous tissue, muscle or bone tissue, whole blood, blood serum, fibriner organs; egg albumen and/or yolk; gelatin; and nut or bean proteinaceous material. According to one typical Example, a 5.25% (measured as active chlorine) commercially available sodium hypochlorite solution is titrated with 5 cc. of blood serum until all liberation of gas ceases. The amount of hypochlorite solution used is about 65 cc. Two drops of serum are then added to ensure that all hypochlorite has been neutralised. The solution is stored during the reaction. A deposit may form in due course, depending on the temperature and amount of stirring. Both the solution and deposit may be used. The former may be brought into powdered form.
Patent GB-518768-A (GB)
Title: Improvements in control apparatus for railway installations
IPC: B61L19/14
Filed: 1938-08-30
Abstract: 518,768. Railway signals; switchboards. GENERAL RAILWAY SIGNAL CO. Aug. 30, 1938, No. 25426. Convention date, Oct. 16, 1937: [Class 105] [Also in Group XXXVII] An operator's desk for centralized traffic control on railways is built up of a plurality of box-like units T2 ... T6 detachably connected together side by side, each having a control panel diagram P and the relay apparatus for. the relevant section of track. The remote control may be effected through a code transmission the apparatus for which is housed in a similar box-like unit T1 at the left hand side. The panels P can be swung downward to allow access to the interior. The relays are mounted on socket plates 11 provided in' dust-proof casings 7 having sliding windows 8 such casings being slidably guided by telescoping channel pieces 5, 6 to permit retraction from the rear of the box-like unit after removal of the back plate 3. Specification 419,399, [Group XXXVIII], is referred to.
Patent GB-628396-A (GB)
Title: Improvements in or relating to radio beacon systems of the equi-phase displacement type
IPC: G01S1/02
Filed: 1946-08-26
Abstract: 628,396. Radio navigation. O'BRIEN, W. J. Aug. 26, 1946, No. 25492. Convention date, Aug. 27, 1945. [Class 40 (vii)] A radio beacon system comprises two stations at spaced points radiating radiofrequency signals of different but harmonicallyrelated frequencies having a fixed multiple phase relation, mobile means for separately receiving the signals, means either at the receiver or at the beacon for adding to the signals two further harmonically-related radio frequency signals differing slightly in frequency from the original signals and means for rectifying the outputs of the receiver channels and continuously indicating the multiple phase relation between the rectified outputs. The present invention is a development of that described in Specification 584,727 and avoids difficulties in preventing spurious phase shifts in the receiver channels of the system therein described. In one embodiment, Fig. 1, the original signals of, say 300 kc. and 600 kc., are received on an antenna 1 which is coupled at 3 and 5 to 300 kc. and 600 kc. receivers and detectors 11 and 12. A crystal oscillator of 300,025 cycles feeds, through amplifier 14, a harmonic generator 8 whose fundamental and lst harmonic outputs are injected in the antenna circuit. The output of the 300 kc. receiver 11 will be the 25 cycle beat signal between the received and local signal and the output of receiver 12, a similarly derived 50 cycle beat. These beat signals are respectively doubled in frequency and amplified, and amplified in units 17 and 21 and then compared in continuous phase indicator 19 to give an indication of the phase difference of the incoming signals. To prevent any frequency variation in the injected signal the 50 cycle signal from amplifier,' 21 is compared in frequency with a fixed standard in discriminator 24 whose output is applied to variable reactance stage 26 correcting any deviation in the oscillator 13. A.V.C. for the local signals is provided by unit 28 acting on amplifier 14. In a second embodiment the first transmitter radiating for example a 300 kc. signal also radiates one of 600,050 cycles and the second spaced from it radiates 600 kc. signals and also 300,025 cycles. The hyperbolic equi-phase contour system created by these signals contains twice as many lines as would be the case if 300 kc. and 600 kc. signals only were radiated as in the system described in the above-mentioned Specification. At the receiver, Fig. 2, 300 kc. and 300,025 cycle signals pass through receiver and detector 37 and the 25 cycle beat signal is doubled in frequency in amplifier 41 and fed to one input of phase indicator 43, the second input of which is fed with the 50 cycle beat signal between the 600 kc. and 600,050 cycle signals passing through the second channel 39-45.
Patent GB-254942-A (GB)
Abstract: 254,942. Bower, J. W. Nov. 6, 1925. Drying agents, specially designed for. - A receptacle for use in drying the interior of a cabinet &c. comprises a tubular bodv D inserted through a hole in the wall of the cabinet and fitted with a perforated partition W dividing the body into an upper chamber A and a lower chamber B, each chamber being closed by a removable stopper provided with a rubber washer; air inlet and outlet holes I, O are arranged respectively above and below calcium chloride or other drying agent contained in the chamber A on the partition W, and any liquid formed in the chamber A drains through the partition W into the chamber B. The head of the stopper A<1> of the upper chamber has a rubber collar E forming a joint against the outer side of the cabinet &c. C and the body D may have a slot or recess S having an inclined side engaging the inner edge of the hole in the cabinet and tending to pull the collar E into close contact with the outside of the cabinet. The partition may be adjustable and removable, and may be screwed to engage internal threads in the body D, or it may be supported by a piece of piping or by a spring, ridges &c. within the body. The receptacle may be inserted through the top, side or bottom of the cabinet &c., and in the latter case the collar may be arranged on a bush engaging the stopper of the lower chamber and held against the wall of the cabinet by the stopper or by a latch or other fastening.