baber/WOPTO huggingface dataset:
Patent GB-1032763-A (GB)
Title: Improvements in or relating to built-in cooking units
IPC: F24C15/20
Filed: 1961-08-29
Abstract: 1,032,763. Ventilating cooking stoves. RADIATION Ltd., and J. W. BUCKINGHAM. Aug. 27. 1962 [Aug. 29, 1961]. No. 31098/61. Heading F4W. A cooking unit comprising an oven 1 and a hot chamber 2 is built into a recess 3 in a wall or a kitchen cabinet and is surrounded by a casing 15 through which room air rises by convection and leaves through a mesh grid 8 to deflect hot air and/or vapours leaving the oven away from the region above the front face of the unit. Air may enter the casing 15 below the unit through a mesh grid 14 or at the sides of the unit. The oven is ventilated by air entering below a door 4 and leaving through a tube 6 and a duct 7 containing a grease filter 9. The filter is removable and comprises an inverted channel member containing corrugated fine mesh 10.
Patent GB-1178147-A (GB)
Title: Screw Compressor Units
IPC: F04C29/00
Filed: 1967-06-06
Abstract: 1,178,147. Rotary screw compressors. ATLAS COPCO AB. June 6, 1967 [June 22, 1966], No.31129/69. Divided out of 1,178,146. Heading F1F. In a screw compressor unit as described and claimed in Specification 1,178,146, comprising in combination, at least two screw compressors having main and gate rotors with parallel axes in each said screw compressor, a power transmission casing, and a power transmission therein, coupling means at one end of the transmission casing for couplings said power transmission to a driving motor, flanging means for rigidly and removable securing the at least said two screw compressors separately and independently of each other to the power transmission casing at the opposite end of the transmission casing to said coupling means, a main shaft mounted for rotation in bearings in the power transmission casing and carrying said coupling means, a toothed driving gear secured on said main shaft, and a driven toothed gear on one rotor of each screw compressor in driving engagement with said driving gear for being driven thereby, wherein each screw compressor includes inlet and outlet conduits, 65, 66 (L. P. compressor 1) and 69, 71 (H. P. compressor 3) formed integral with the compressor housing which extend at substantially 45 degrees to a plane through the axes of the two compressor rotors, one on either side of said plane, and flanges at the ends of the conduits connecting the compressor to inlet and discharge lines.
Patent GB-237207-A (GB)
Title: Improvements in illuminating apparatus
IPC: G09F13/00
Filed: 1924-12-29
Abstract: 237,207. Leer, B. van, (Assignee of Ballerini, F.). July 21, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Monogrammic signs. - Advertising signs are produced by the movement of one or more perforated bands or plates relative to a stationary plate so that light is allowed to pass through the coincident perforations In the simplest form the movable plate may be perforated with the actual signs to be displayed, and may take the form of an endless band which is moved step by step by any desired means such as a motor and commutator. Between each step the light is shut off. In another embodiment, the movable plate 2, Fig. 1, is provided with two sets of perforations 3, 4, each of which is the same as the set 33 in the fixed plate 1. These sets may be displaced from each other 45‹, as shown, or 90‹. The desired sign is formed from the set 3 by plugging certain perforations. A number of movable plates 2 may be disposed behind one fixed plate 1, the set of perforations in each being normally coincident. The plates 2 are moved in turn to bring the set 3 of perforations into coincidence with those in the front plate, either by means of an electric motor or by the arrangement shown in Fig. 8. The plates 2 are provided with teeth 22 which engage with cams 39, 21, 40 on a series of discs 37 on a shaft 36 stepped round by a pawl 12 on a lever 11. The lever 11 is attached to a rod 15 forming an extension of the core 14 of a solenoid 13. Cams 16, 41 on a rod 15 actuate a switch 19 for connecting and disconnecting solenoids 13. The lever 11 and rod 15 return by a spring 20 under control of a dashpot 18. The plates 2 are provided with pins 10 sliding in guides 35 and return by springs 46, 47. A thermal switch may be provided as an alternative to the pneumatic brake. Current flowing through contacts 26 and 27 and resistance 24 beats a rod 25 which expands and opens contacts 26, 27 and closes contacts 28, 29 to the solenoid 13. The plates 2 may be formed with inverted V notches in the lower edge which slide on guide ways. If the sets of perforations be displaced 90‹ the plates 2 are moved vertically.
Patent GB-867333-A (GB)
Title: Improvements in or relating to card raising machines
IPC: D06C11/00
Filed: 1957-10-07
Abstract: 867,333. Finishing fabrics. MULLERS, K. A. Oct. 7, 1957 [Nov. 15, 1956], No. 31363/57. Class 42 (1). A card-raising machine in which a rotary drum carries nap rollers alternating with counter-nap rollers is characterized in that the drum is driven at a regulable speed. The motor 11 drives, through a regulable gear 12, 13, the shaft 10 of the drum which drives the draft rollers 15, 16 through pulleys 17, 19 and 23, these rollers controlling the feeding and drawing off of the fabric. Also driven from the shaft 20 through regulable gears 21, 22 is the pinion 20 which drives the gear-wheel 23 which turns the counter nap rollers 24 by means of a V-belt. The nap-raising rollers are similarly driven through a regulable gear 26, 27 from the shaft 10. It is stated that, once the gears are set, the raising force remains the same for both sets of raising rollers even when the speed of the material is adjusted and that this force can be represented by scales on hand wheels 28, 29 which adjust the gears.
Patent GB-1330815-A (GB)
Title: Animal feeds
IPC: C07D487/04
Filed: 1972-07-05
Abstract: 1330815 Animal feeds UPJOHN CO 5 July 1972 [8 July 1971] 31522/72 Heading A5B Increased weight, rate of weight gain, milk production and rate of egg-laying in meat-producing, milk-producing or egg-laying animals is produced by administering to said animal a compound having the general formula: wherein R is hydrogen, C 1-3  alkyl, phenyl, benzyl or -COOR' in which R' is C 1-4  alkyl; R 1  is hydrogen or C 1-3  alkyl; R 2 , R 3 , R 4  and R 5  are hydrogen, C 1-3  alkyl, halogen, nitro, cyano, trifluoromethyl, alkoxy, alkylthio, alkyl sulphinyl, alkylsulphonyl, alkanoylamino or dialkylamino in which the carbon chain moieties are of 1 to 3 carbon atoms, or a pharmacologically acceptable acid addition salt thereof. Animal feeds comprise a compound of the above formula, in particular 8-chloro-1-methyl- 6 (o-chlorophenyl)-4H-S-triazolo [4, 3-a] [1, 4] benzodiazepine, in combination with a nutrient animal feed. The animal feed may also contain vitamins A, D, B 12 , riboflayin, calcium pantothenate, niacin and choline chloride; trace minerals containing manganese, cobalt, iron, copper, zinc and iodine.
Patent GB-648156-A (GB)
Title: Improvements in or relating to machines adapted to apply levelling pressure to bottom portions of shoes
IPC: A43D89/00
Filed: 1948-12-07
Abstract: 648,156. Boot &c. machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Dec. 7, 1948, No. 31586. Addition to 574,462. [Class 17 (i)] The machine for applying levelling pressure to a shoe bottom described in the parent Specification is modified in that a single hand lever controls the lengthwise movement of the jack and the heightwise and tipping movements of the levelling roll. The mechanism of the jack 12 and of the hydraulic means to lift the roll 22 against the downward spring pressure to prevent stubbing of the shoe toe is the same as that described in Specification 543,547. The lengthwise movement of the jack 12 and the tipping of the roll 22 are produced by fluid pressure motors 144 and 114 respectively controlled by valves 150, 120 which have follow-up mechanism which ensures that the movements produced correspond to the direction, extent and speed of the movement of actuating mechanism comprising a single hand lever 182, constructed like the lever 542 of the parent Specification being free to move lengthwise and laterally in all its positions. The tipping movement is controlled by the lateral swing of the lever 182 about the pivot 184, Fig. 2, in the same way as in the parent Specification, while the lengthwise movement of the sleeve 186 acts through links 228, 238 both pivoted to a shaft 234 by connecting links to move the lever 178 controlling by the valve 130 the movement of the jack. A flat 282 on a latch arm 262 engaging a pin 284 prevents the roll moving off the toe of the shoe after the initial forward movement of the jack until the treadle 276 is depressed to release the latch. A treadle 242, Fig. 1, acts through links 250, 252, 260 on a rod 102 to straighten a toggle 100 to lift the levelling roll at any time.
Patent GB-245403-A (GB)
Title: Improvements in phantascopes for advertising purposes
IPC: G09F13/12
Filed: 1924-06-24
Abstract: 245,403. Bentley, J. F. June 24, 1924. Optical apparatus, applications of.-In apparatus wherein an object is seen by reflection in an inclined transparent mirror mounted in a casing, the part of the casing 3 behind the mirror 6 is open to permit a clear view therethrough. The object 8 maybe an electric lamp fashioned as a bottle, a cake of soap, &c., or may be a glass or celluloid copy of one side of an article. A mask 10 may be provided to prevent light passing round the object, and lettering may be cut out of the mask. Specification 244,942 is referred to.
Patent GB-392538-A (GB)
Title: Improvements in and relating to cleaning appliances for windows and like surfaces
IPC: A47L1/05
Filed: 1931-11-16
Abstract: 392,538. Cleaning-appliances. WAGLAND, C. H., 14, Mount Ephraim Lane, Streatham Hill, London. Nov. 16, 1931, No. 31663. [Class 19.] An appliance for cleaning windows and like surfaces comprises a hollow rod 1, Fig. 1, carrying an electrically-operated air-impeller 2, an electric heater 3, an air moistening chamber 4, and a wiping element 5. The chamber 4 is packed with sponge 8 charged with water or other cleaning liquid. The moist hot air passes through a pipe 9 communicating by one or more apertures with the face of the wiper. In a modification shown in Fig. 2, the wiper pad 5 is secured to the shaft 12 of an electric motor 11 which drives a fan 14 whereby air is drawn through the heater 3 and forced through the moistening chamber 8, to issue from a pipe 15 adjacent to the wiper In a further construction, the wiper is connected by universal joints to an eccentric portion of a head carried by the motor so that it is given a gyratory motion over the surface being cleaned. The motor may be arranged to drive the wiper through a flexible shaft. In the construction shown in Fig. 5, the wiper is of wedge shape with two cleaning surfaces 5, one of which is cut away at 23 to allow moist air to be supplied to the surface being cleaned. A further form of wiper shown in Fig. 6 comprises two pads 5 carried by pivoted arms 24 which are spring- pressed towards each other. In a further modification the wiper pad is secured to a hollow elongated member formed with a number of apertures by which the air is directed on to the surface being wiped.
Patent GB-648169-A (GB)
Title: Improvements relating to scarifiers or road breakers
IPC: E01C23/12
Filed: 1948-12-09
Abstract: 648,169. Road scarifiers. AVELING-BARFORD, Ltd., and RICHARDSON, E. Dec. 9, 1948, No. 31866. [Class 107] In a scarifier or roadbreaker adapted to be amounted on a roller or the like comprising tines A mounted on a beam D carried on arms E pivoted to the rear axles F of the roller, the beam is operated by two hydraulic rams J working in cylinders H carried on the frame G of the roller, the rams being interconnected by racks N pivoted at the foot of the rams and engaging pinions P fixed on a shaft Q carried on the frame G thus preventing twisting of the beam. A pawl S is provided for locking the beam in the elevated position. The rams J and the racks N are fulcrummed to brackets L carried on the beam D.
Patent GB-1437221-A (GB)
Title: Cephalosporins
IPC: A23K20/195
Filed: 1973-07-04
Abstract: 1437221 Cephalosphorin silyl esters E R SQIBB & SONS Inc 4 July 1973 [4 Aug 1972] 31882/73 Heading C3S [Also in Division C2] The novel cephem compound of formula wherein R is a trimethylsilyl group, R 1  is a group -CH 2 -CH = CH 2 , R 2  is H, R 3  is ethyl and X is H, is prepared by reacting trimethylsilyl ester of 7-amino-3-desacetoxycephalosporanic acid with a cyanomethylthioacetyl chloride of formula wherein R 1 , R 2  and R 3  are as defined above and R 5  is chlorine.
Patent GB-845776-A (GB)
Title: Improvements relating to radar equipment
Inventor: GUILHEM ROBERT GERMAIN
IPC: H03L7/06
Filed: 1957-10-11
Abstract: 845,776. Automatic frequency control systems. COMPAGNIE FRANCAISE THOMSONHOUSTON. Oct.11, 1957, No. 31884/57. Class 40(5). The frequency of the local oscillator of a pulse radar superhet receiver is automatically controlled to maintain a constant difference between the local oscillator and radar signal frequencies by means for producing a first signal of frequency equal to the difference between the local and an auxiliary oscillator signal frequencies, means for producing a second signal of pulse sequences occurring immediately after each radar pulse of frequency equal to the frequency difference between the auxiliary oscillator and pulse radar signals, and means for mixing said first and second signal to produce a sequence of pulses which control the local oscillator frequency. In the embodiment of Fig. 1, the auxiliary and local oscillators 12, 2 produce signals of frequencies Fa, Fb respectively which are mixed in a mixer 15, a signal from oscillator 12 being also mixed with a signal of transmitter frequency Fm derived from transmitter 4. The output signal from mixer 13 of frequency Fm-Fa is fed to a memory circuit 14 producing a pulse sequence each of which is a replica of the input pulse and occurs immediately after each radar pulse. The output signals from mixer 15 and circuit 14 are combined in a mixer 16 to produce an output signal of frequency Fb-Fm which is applied to a discriminator 17. This compares the frequency with a reference frequency to produce a D.C. voltage which controls the local oscillator frequency Fb. Tuning control 5 of transmitter 4 also controls both oscillators to maintain frequencies Fm-Fa and F b -Fm substantially constant. In a further embodiment (Fig. 2) the tuning control 5 produces a periodically varying voltage U 1  for the transmitter 4, this voltage being applied also to circuit 18 which produces a stepped voltage U 2  having the same envelope as U 1 . Voltage V 2  is applied to the oscillators as a wave tuning control. Memory circuit 14 comprises an amplifier 19, a delay line 21, and a feedback path 20 including amplifiers 22, 19 and interrupter 23 which, in addition to modulator 6 and amplifier 24 is controlled by the radar controlling trigger pulses 26 through a circuit 25. In a further embodiment (Fig. 3, not shown) the memory circuit is omitted and the Fm frequency signal is obtained from echo signals on the receiver side of the radar system.
Patent GB-430243-A (GB)
Title: Improvements in or relating to lathes and like machine tools
IPC: B23B9/02
Filed: 1933-11-15
Abstract: 430,243. Lathes &c. WICKMAN, Ltd., A. C., and DIXON, R. J., Queen Victoria Road, Coventry. Nov. 15, 1933, Nos. 31888 and 33352. [Class 83 (iii)] The tool or work slides of a lathe or other machine tool are actuated by mechanism comprising two cams acting on two different elements of a differential gear, the resulting motion of the third element of the differential being transmitted to the slide. In one form, Figs. 1 and 3, a driven shaft 21 is connected through gears 23, 24 and worm gearing 26 to a cam shaft 28 carrying cams 30, 31. The tool slide is connected to a rack 37 engaged by a pinion 36 carried by a slide 35 operated by the rapid traverse cam 31. The upper side of pinion 36 is en. gaged by a rack 34 operated through an adjustable lever 32 from the slow feed cam 30. A friction clutch 40 may be actuated by dogs 43, 44 to engage a high speed drive which is derived from a sprocket 46 and is arranged to overrun the low speed drive when the clutch 40 is engaged at the end of the slow cutting feed. This mechanism gives a variable feed stroke by adjusting the lever 32 together with an idle rapid return stroke which is substantially constant. In a modification, Fig. 5, applied to a work turret lathe, the longitudinal tool slides 53, 53<a> are supported on the bed 54 and beam 55 respectively. A shaft 60 carries cam discs 63, two of which carry cams 64 which operate a forked lever 65 having alternate pivot positions 76, 77. A pinion slide 66 carries four pinions engaging vertical racks 68, 69, the racks 68 being arranged to operate the tool slides through pinions 74, 74<a> and racks 75, 75<a>. The racks 69 are operated by cams 72 through adjustable levers 71 and links 70. The slide 66 is moved down to provide the rapid forward travel of the tool slides, the rack 69 being stationary. The racks 69 are then moved upwards to give the adjustable working stroke of the slides. The return strokes are then effected by cams 78, 79 which move the racks 69 downwards and the slide 66 upwards. The length of the rapid travel may be altered by using the alternative pivot positions 76, 77. In another modification, Fig. 9, also applied to a work turret lathe, a cam shaft 91 carrying the cams for indexing, bar feed, &c. also carries a cam disc 92 driving a similar cam disc 93. These discs carry side cams 95 for the slow travel and other side cams 96 and 97 for fast idle travel of the cross slides 85, 87. For the fast travel a lever 98 is rocked to slide a rod 103 having rack teeth which rotate eccentric rods 104 to raise pillars 106 carrying the fulcrum pins 110 of levers 112. This raises the links 113, 114 and operates the cross slides. The slow movement is obtained by rocking the lever 112 by means of the cam 95, the fulcrum 110 remaining stationary. In another modification, Fig. 10, two variable stroke levers 120, 121 may be operated by a feed cam 30 and idle movement cam 31 to give the required movements to a tool slide 122.
Patent GB-174245-A (GB)
Title: Improvements in gas producers
IPC: C10J3/72
Filed: 1920-11-11
Abstract: 174,245. Mawson, J. Nov. 11, 1920. Producers.-Water gas is generated by passing water vapour, superheated by passage through conduits surrounding the fuel bed, through the fuel which is at a temperature of 2,750‹ F. or over whereby a continuous production of gas may be maintained without the addition of air or oxygen. The apparatus comprises a producer having a fuel bed 6 surmounted by a hopper 7 and surrounded with a vaporizing chamber 5 supplied with water from a tank 11. The steam &c. passes through an opening 18 expands in chamber 17 and passes round a hood 19 entering the fuel bed through the grate. The fuel bed is of rectangular cross section. Air blast is supplied from a pipe 14, and the gas generated during the "run" passes out by a pipe 15. Steam may be supplied through a pipe 20. The outside casing 1 may be of double walls packed with asbestos. A series of nickel or nickel steel steps may be arranged in the space between the hopper 7 and the vaporizer 5 and it is stated that these steps act in a catalyzer to convert thecarbon monoxide into methane.
Patent GB-681914-A (GB)
Title: An improved means of mounting earth boring tools on vehicles
IPC: E21B19/087
Filed: 1949-12-14
Abstract: 681,914. Augers. HUTTER, H. E. March 12, 1951 [Dec. 14, 1949], No. 32029/49. Class 85 A parallel-motion linkage for mounting earth boring tools on vehicles comprises a pair of spaced linkages, each linkage being formed by links 7, 10 of equal length which cross each other and are pivoted to the vehicle at points 5, 12 respectively, which points are vertically above one another, the links being pivotally connected at their other ends 'to the ends of an intermediate link 9 which carries the boring tool 17 pivotally suspended at its mid-point. The boring tool, which is driven from a power " take-off " from the tractor via a cardan shaft 18 and a gear box 16, is raised or lowered by struts 26 connecting the lower links 7 to pneumatically controlled operating arms 21. If the tractor is on a slope in the fore and aft direction, a guide may be provided for an extension on the gearbox to assure that no strain is put on the auger, and if on a transverse slope, the struts 13 may be carried by a frame 25, Fig. 4, which is rotatable about an axis 26 parallel to the longitudinal axis of the tractor to ensure that the auger is vertical.
Patent GB-351871-A (GB)
Title: Improvements in or connected with automatic gas valves for geysers
IPC: F24H9/20
Filed: 1930-10-27
Abstract: 351,871. Geyser gas valves. BARRALET, J. H. and NEW GEYSERS, Ltd., 25, Addington Square, Camberwell, London. Oct. 27, 1930, No. 32222. [Class 135.] An automatic geyser gas valve of the kind actuated by a tipping tank has the valve casing and water inlet funnel constructed as an independent unit. The gas valve spindle e is coupled to a tube d<1> having a collar i engaged by one end of a lever h pivoted at h<1> in a branch g<1>. The lever is partly tubular and partly channel-shaped and carries a bucket ; j having bleed ports j<1> in the bottom and a strainer j<2> on the open end. The bucket is arranged in the inlet funnel g which is fitted with a strainer k and is prevented from turning in the geyser by a small projection g<2> fitting in a recess in the aperture in the geyser. The tube d<1> is arranged in the annular space between a tube d<2> and the outer casing d and is sealed by water diverted through the hollow lever.
Patent GB-913367-A (GB)
Title: Improvements in or relating to torque control mechanism
IPC: B30B15/14
Filed: 1959-09-22
Abstract: 913,367. Clutch control. BLISS CO., E. W. Sept. 22, 1959 [Sept. 22, 1958], No. 32241/59. Class 80 (2). A fluid-pressure actuated friction clutch for a crank-driven power press in which the torque transmitted to the press crank-shaft produces the rated tonnage for positions relatively high in the stroke and in which the torque is thereafter progressively diminished so as to continue to produce, but not exceed, the rated tonnage, is provided with control means for relieving the clutch engaging pressure in order to reduce the torque transmitted, the control means ensuring that the rate of relief is constant despite possible wear of the friction linings of the clutch. Driven clutch-plates 16, 24 rotating with a crank-shaft 30 are engaged with a plate 26 fast with a driving flywheel 28 by air pressure on a piston 34 and are disengaged, with consequent engagement of a brake 12, by springs. To engage the clutch, solenoid-actuated pilot valves 42, 52 are actuated so that a valve chamber 56 is opened to exhaust through the pilot valve 52 and a chamber 46 is supplied with air from a pressure tank 36 through a line 74 and valve 42. Tank 36 also supplies air through a line 62 to unseat an inlet valve piston 58 from a seat 64 so that air is supplied through a line 66 to engage the clutch. Pressure in chamber 46 seats an outlet valve piston 48 on a seat 79 to close an exhaust line 60. To reduce the engaging pressure the solenoids of both pilot valves are de-energized so that pressure is supplied to chamber 56 to seat the inlet valve piston 58, and chamber 46 is opened to exhaust through a restriction 78. The pressure in chamber 46 falls at a controlled rate and piston 48 moves to give a throttled exhaust from the clutch cylinder, the pressure drop in the clutch cylinder being a function of the drop in the chamber 46 and hence independent of wear of the plates and consequent changes in the effective volume of the clutch cylinder. An electric control circuit including switches actuated by cams on a cam-shaft geared to the crankshaft is described for automatic control of the press through a complete cycle.