baber/WOPTO huggingface dataset:
Patent GB-333696-A (GB)
Title: Baffle cowl for flue-pipes, chimneys and the like
IPC: F23L17/02
Filed: 1929-07-01
Abstract: 333,696. Parker, J. W. July 1, 1929. Chimney and ventilating-shaft tops. - A ventilating-cowl comprises a pipe a with a closed top and lateral outlets b, each outlet being covered by a half round cover c open at the bottom and closed at the top, a pipe d open at both ends passing vertically through each cover. The gases from the pipe a pass through the outlets b and travel downwards through the covers c, the draught being assisted by wind blowing down the pipes d.
Patent GB-412048-A (GB)
Title: A process and apparatus for the moulding of pipes, masts and other hollow articles from concrete and the like
IPC: B28B21/26
Filed: 1933-07-18
Abstract: 412,048. Moulding pipes of concrete &c. centrifugally. INTERNATIONAL SIEGWART BEAM CO., Ltd., 2, St. Leodegarstrasse, and STUSSI, J., 24, Eschenstrasse, both in Lucerne, Switzerland. July 18, 1933, No. 20226. [Class 87 (ii).] A centrifugal moulding machine for concrete &c. pipes, masts &c. comprises a mould 7 rotated by a gear 4 driven from an electric motor through a change speed gear-box 16 and a core 15 freely rotatable in a slide 12 which may be elevated and lowered as by an hydraulic ram 11. The core carries radial paddles 23 at its upper end for discharging material supplied from a hopper 18 against the mould walls by centrifugal action. The core fits closely within the mould support, and, if circular, is driven by the friction of the mould support ; in which case a brake may be fitted to produce relative rotation between the core and mould to enable the core to smooth the inner wall of the pipe &c. The core may be of square, oval or other cross section. The material may be applied in one or more layers, the mould being accelerated after deposition of each layer to consolidate the material and to create space for the next layer. The upper end of the mould is centred by three rollers such as 8. A ring 9 and channel 10 are arranged at the upper end of the mould to receive excess water &c. expressed from the material.
Patent GB-1410839-A (GB)
Title: Apparatus for the distribution of loose fibrous material
IPC: B65G53/36
Filed: 1973-04-28
Abstract: 1410839 Feeding tobacco IMPERIAL GROUP LTD 17 April 1974 [28 April 1973] 20295/73 Heading A2C [Also in Division Dl] Loose fibrous material e.g. tobacco or wool is fed through an inlet 18 to the ascending surface of a drum 10 rotatable about a horizontal axis and provided with an external series of circumferentially spaced longitudinal rakes 12 and thereafter the fibrous material is removed by suction from one of at least two openings 15 in a top portion of a housing 13 which surrounds the drum 10. As shown inlet 18 may be served by hopper 19 inclined at about 45‹, a window 19a and level 20 serving to control additions by a photo-electric cell.
Patent GB-754172-A (GB)
Title: Improvements in apparatus for influencing the state of a gaseous medium
IPC: F24F3/14
Filed: 1954-07-12
Abstract: 754,172. Air conditioning. MUNTERS, C. G. July 12, 1954 [July 13, 1953], No. 20314/54. Addition to 748,311. Class 137. [Also in Group XIII] Apparatus described in the parent Specification (see Group XIII) in which a mass of filamentary heat transfer material arranged in a plurality of layers moves alternately through two separated gas streams and thereby transfers heat from one gas to another, is modified by using filaments coated with a hygroscopic substance so that moisture is also transferred between the two gases. Preferably the filaments so coated are themselves made of a material having hygroscopic properties such as paper, woollen material, textile material or a suitable synthetic resin. Silica gel is mentioned as a substance suitable for coating the filaments.
Patent GB-384238-A (GB)
Title: Improvements in draught excluders for doors, windows and the like
IPC: E06B7/232
Filed: 1932-07-19
Abstract: 384,238. Draught excluders. NAAMLOOZE VENNOOTSCHAP WETTERSTRIP HANDELSONDERNEMING, 57, Heerengracht, Amsterdam. July 19, 1932, No. 20415. Convention date, July 20, 1931. [Class 20 (iii).] To prevent leakage between a spring-strip draught excluder and the support to which it is secured, a strip of felt b is interposed when fastening the strip by the nails a. The outer edge of the strip may be turned over to give strength.
Patent GB-458602-A (GB)
Title: An improved aerial for wireless reception
IPC: H01Q1/36
Filed: 1935-07-18
Abstract: 458,602. Aerials. PHIL POTT, R. V., 84, Alma Road, Clifton, Bristol. July 18, 1935, No. 20447. [Class 40 (v)] A winding A, tapered at both ends as shown, is connected through insulators B to a bracket D, by which it is suspended to serve as an aerial.
Patent GB-1417533-A (GB)
Title: Clamp assembly
IPC: F02B67/00
Filed: 1974-05-09
Abstract: 1417533 Clamps GENERAL MOTORS CORP 9 May 1974 [21 May 1973] 20503/74 Heading E2B A clamp assembly comprises a housing 23, e.g. of an I.C. engine, having a pair of component mounting pads 26, 29 with a clamp mounting pad 32 therebetween, first and second components 22, 21 such as an oil separator and a distributor, requiring low and high clamping forces respectively against the respective pads 26, 29, and a pair of clamp members 36, 34. The member 36 is flexible and arranged to rest on the pad 32 whilst engaging and pressing the component 22 against the pad 26, and the other member 34 is stiff, has a transversely extending foot 42 arranged to engage the member 36 and is arranged to engage the component 21 to press it against the pad 29 while the foot 42 engages and presses against the member 36 against the pad 32 and also against the component 22. The clamp members each have an aperture, which apertures are aligned and located between the foot 42 and where the member 34 engages the component 21, a single fastener 52, i.e. a bolt, being secured to the pad 32 for fastening both members to that pad while also applying force on the member 34 at a location between the foot and the engagement of the member 34 with the component 21 so that the member 34 clamps the component to its respective pad 29 with a high clamping force while the foot 42 acts on the member 36 so that the latter flexes and clamps the component 22 to the pad 26 with a low clamping force, the difference in the clamping forces decreasing at the distance between the foot 42 and the bolt 52 is increased. As shown, each clamping member is forked-shaped and the legs 37, 44 thereof overlap, and the ends 55, 56 of the limbs 39, 46 are curved.
Patent GB-718162-A (GB)
Title: A process for the production of a bait for killing rodents, moles and noxious animals with similar manner of living
IPC: A01N25/00
Filed: 1952-08-14
Abstract: A rodenticidal bait is prepared by soaking whole grains of Indian corn in a solution of a rodenticide, removing the treated grain from the solution and drying.  By this means it is alleged that the rodenticide penetrates and is substantially wholly concentrated in the porous cellular tissue of the embro portion of the caryopsis. Rodenticides specified are: a 4-oxy-coumarin derivative, a preparation from the bulbs of Urginea maritima, paratyphoid bacteria, thallium sulphate, cadmium sulphate, sodium fluoride and sodium fluoroacetate.  The bait may also be impregnated with a colouring agent, sugar, cod liver oil or meat extract.  The example specifies the use of 3-(a-acetonylbenzyl)-4-oxy-coumarin as rodenticide. Specifications 638,303 and 23626/46 (as open to inspection under Sect. 91) are referred to.
Patent GB-499655-A (GB)
Title: Improvements in and relating to reaping and like cutting machines
IPC: A01D34/03
Filed: 1937-07-26
Abstract: 499,655. Reaping-machines. MATTOCKS, W. L., and BARR, A. A. July 26, 1937, No. 20564. [Class 6 (iii)] In reaping - apparatus of the type wherein an ordinary reaping machine including ground wheels and axle is connected to an ordinary motor vehicle chassis and is driven through gearing from the motor on the chassis, the motor vehicle chassis A is mounted at its rear on the axle 12 of reaper B, which is of the horse drawn type, the pole of the reaper being removed, by securing the longitudinal member 10 of the chassis by U-bolts 11 to the upper side of the axle casing. The rear axle casing of the motor vehicle is transferred to the upper side of the longitudinals 10 and is secured thereto by U-bolts 14 : the wheels are removed from the axle and sprocket wheels 16 attached to the brake drums 17, these sprockets actuating through chains 18 corresponding sprockets 19 clamped to the scraper land wheel spokes outside wood blocks 21. The reciprocating cutter 45 is driven through the usual connecting rod 29a, crank-shaft 29, gearing and clutch 30 from bevel gear secured to the land wheel axle. An adjustable wheel 36 regulates the height of the cut and a hand-lever, adapted to rock a transverse shaft 40 carrying a quadrant fitted with a chain 38 attached to the transverse pivoted bar 34 of the knife bar, lifts the knife bar for transport.
Patent GB-601532-A (GB)
Title: Improvements in or relating to radio direction finding systems
IPC: G01S19/48
Filed: 1945-08-10
Abstract: 601,532. Radio direction-finding. STANDARD TELEPHONES & CABLES, Ltd. Aug. 10, 1945, No. 20647. Convention date, Feb. 20, 1943. [Class 40 (vii)] In a radio direction-finder of the type in which the output from a continuously rotating goniometer modifies the amplitudes of sweep voltages which are applied to a cathode-ray tube to produce a circular time base, means driven synchronously with the goniometer produce pulses which synchronize an oscillator from which the circular time base voltages are produced. A continuous rotating goniometer 7, associated with a crossed loop or an Adcock type directional antenna, is driven by a motor 40. The output from the goniometer is amplified and demodulated in a receiver 12 and is thence applied to the indicator circuits, which may be at a remote central station as indicated by the broken lines. The motor 40 also drives a rotary contactor 42, of which a conducting segment 44 periodically completes the circuit of the battery 52 through the brush 48. The contactor 42 may be replaced by a magnetically - operated device, Fig. 4 (not shown), wherein a magnet mounted on the periphery of a disc passes a coil once per revolution. The pulse obtained from the circuit once per revolution of the disc 42 or its equivalent synchronizes a transitron oscillator 17, the triangular waveform output of which is smoothed by the filter 18. The sinusoidal output of the filter passes through a phasechanger 19, which produces a desired phase relationship between the signal applied to it and the goniometer rotation, to a phasesplitter circuit 20 which provides two sinusoidal output voltages in phase quadrature. These voltages are applied through the amplifier 21 to the cathode-ray tube 14 to produce a circular time base. The gain of the amplifier 21 is controlled by the output of the receiver 12, the gain decreasing as the signal from the goniometer increases. Thus, the trace formed on the cathode-ray tube screen when a signal is being received will be similar to that indicated by 100 in Fig. 1A, the longitudinal axis of the trace defining the direction line of the transmitter for bearings taken on a minimum. Sense determination. An additional aerial 30 is used so that, without further modifications, the trace obtained would be similar to the broken figure 106. The aerial 30 is switched into the circuit by a relay which is operated by the closing of the circuit of the battery 73. This also actuates a relay which causes the switch 49 to change over so that the brush 47 which is displaced 90 degrees from the brush 48 now becomes operative for the production of the synchronizing pulses. (In the magnetically-operated system a further coil displaced by 90 degrees is used). The trace formed on the screen is consequently displaced 90 degrees from 106 and appears as 107 which gives a direct indication of sense.
Patent GB-625400-A (GB)
Title: Improvements in or relating to the driving of the lubricant pumps the ignition distributors and the liquid fuel pumps of internal combustion engines
IPC: F02B67/04
Filed: 1947-07-31
Abstract: 625,400. Driving pumps. FORD MOTOR CO., Ltd. July 31, 1947, No. 20743. Convention date, Nov. 8, 1946. [Class 110(ii)] [Also in Group XXVII] A lubricant pump 11 is driven from the cam shaft 14 by an inclined shaft 18 which also drives the ignition distributer 13. The cam shaft 14 is geared to a sleeve 17 which is fixed to the shaft 18 and splined to the distributor shaft 19, this shaft being also splined to an eccentric sleeve 20 which operates the fuel pump 12 through a pushrod 22.
Patent GB-215640-A (GB)
Title: Improvements in and relating to induction motors
IPC: H02K17/16
Filed: 1923-08-15
Abstract: 215,640. British Thomson-Houston Co., Ltd., (General Electric Co.). Aug. 15, 1923. Alternating-current induction machines.-The slots which accommodate squirrel-cage windings are arranged in groups in each of which they are unequally spaced apart, to avoid dead points at starting, &c. The thickness of the conductors varies with the spacing between the slots to obtain uniform current distribution over the secondary winding.
Patent GB-704273-A (GB)
Title: Improvements in or relating to devices for brewing or infusing tea and like beverages
Inventor: SMAIL ALEXANDER
IPC: A47G19/14
Filed: 1951-09-03
Abstract: 704,273. Tea urns. TEASY KETTLE CO., Ltd. Sept. 2, 1952 [Sept. 3, 1951], No. 20782/51. Class 129 A device for brewing tea consists of an electrically heated kettle 10 having in lieu of a spout a compartment 14 to which water from the kettle can only gain access via a tube 15 when the kettle is tilted. An infuser 22 is a sliding fit within the comparement 14 (being slotted at 25 to enable it to pass the tube 15) and is provided with a tube 26, which, when the infuser is in position, registers with an outlet 16 of the kettle. The outlet 16 is controlled by a valve 17 so that on tilting the kettle a portion of the hot water flows down tube 15 and through the infuser to the outlet and a selected portion of hot water bypasses the infuser flowing via tube 26 to the outlet to suitably dilute the brew.
Patent GB-931363-A (GB)
Title: Passenger mask assembly
IPC: A62B7/12
Filed: 1960-06-14
Abstract: 931,363. Respiratory apparatus. SIERRA ENGINEERING CO. June 14, 1960 [June 15, 1959], No. 20814/60. Class 81 (2). A valve device 20 which is fitted in an opening 26 on a face mask 14 and is connected to a bag 13, which receives oxygen continuously, comprises a housing with a passage 45, 66, 74 in which is an inflow check valve 67, an ambient air passage 58 having a second inflow check valve 55 on one side of the first inflow check valve and an exhaust passage 87 with an outflow check valve 61, 35 on the other side of the first inflow check valve. The bag 13 receives oxygen through tubes 10, 12 when a valve 11 is opened. On withdrawing the mask and bag for use from a receptacle in which they are stored, a pull is exerted on the tube 12 and a cord extension 75 secured between the valve device and the tube 12 and a cord 83 which is attached to the tube 12 moves a fork 86 to open the oxygen supply valve 11. On inhalation, oxygen is drawn from the bag 13 through a chamber 45 and openings 66 in a plate 61 which is movably fixed to the valve body by a sealing connection 64 and around the first inflow check valve 67 which comprises a stem 68 secured to the plate and a disc 69 flexibly mounted on the stem 68 so that it normally closes the apertures in the plate. During inhalation the oxygen supply to the bag is depleted more quickly than it is replenished so that towards the end of an inhalation ambient air is drawn into the chamber in the valve body through openings 58, which are formed in the valve body wall and are controlled by the ambient air inflow check valve. The ambient air inflow check valve comprises a flexible cylindrical member 55 which is pressed against the walls of the chamber to close the openings 58 by oxygen passing to the mask at the beginning of an inhalation. During exhalation, the inflow check valve 67 seats against the plate 61 to close the gas inlet apertures 66. The plate 61 is lifted from a seat 35 formed at the edge of the mask opening 26 to exhaust expired gas to atmosphere. The valve body 40 is secured by screws to annular plates 22, 29 secured around the mask opening 26.
Patent GB-978726-A (GB)
Title: Novel steroid compounds and processes for the preparation thereof
IPC: C07J75/00
Filed: 1961-05-24
Abstract: The invention comprises the 17a -hydroxy-18-nor-pregnane-3, 11, 20-trione derivatives of the general formula: <FORM:0978726/C1/1> in which R1 is a bromine atom at the 4-position, R2 a hydrogen atom at the 5-position and B represents two hydrogen atoms or R1 and R2 represent a double bond between the 4- and 5-positions and B represents two hydrogen atoms or two halogen atoms and processes for the preparation thereof in which 17a -hydroxy-18-nor-pregnane-3, 11, 20-trione is subjected to bromination to obtain 4#x-bromo-17a -hydroxy-18-nor-pregnane-3, 11, 20-trione, dehydrobrominating this compound e.g. with lithium bromide/lithium carbonate to obtain 17a -hydroxy-18-nor-pregn-4-ene-3, 11, 20-trione and halogenating this compound e.g. with iodine in the presence of an alkali to obtain a 21-dihalogeno-17a -hydroxy-18-nor-pregn-4-ene-3, 11, 20-trione.
Patent GB-655777-A (GB)
Title: Improvements in or relating to the production of alloys of iron and silicon
IPC: C22C33/02
Filed: 1948-08-06
Abstract: In a process for the production of a homogeneous alloy of iron and silicon in a readily pulverisable condition, an intimate mixture of iron powder and silicon powder in the required proportions is heated to a temperature above 700 DEG C in an atmosphere comprising a non-oxidizing, inert or reducing gas and a halogen or a volatile inorganic halide capable of reacting with iron or silicon.  The gas may be hydrogen, the halogen may be chlorine, and the halide ferric chloride, silicon tetrachloride, hydrogen chloride, or ammonium chloride.  A solid inorganic chloride, e.g. NH4Cl, may be mixed with the iron and silicon powders, placed inside an iron pot with a loose fitting lid, the whole enclosed in a larger pot having a slow stream of hydrogen passing through it; the temperature may then be raised to 900 DEG C, maintained for two hours, and then allowed to cool in a slow current of hydrogen.  The porous mass of an iron-silicon alloy thus produced may easily be crushed to a fine powder. Specifications 309,393, [Class 72], 309,394, [Class 82(i)], and 512,144 are referred to.
Patent GB-503384-A (GB)
Title: Improvements in or relating to printing telegraph apparatus
IPC: H04L17/04
Filed: 1937-08-27
Abstract: 503,384. Spring motors. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Aug. 27, 1937, Nos. 20844/38 (divided out of 490,361, [Group XVI]), and 20846/38 (divided out of 490,404). , [Class 10] [Also in Group XL] In printing - telegraph apparatus of the step-bystep type in which a shaft, rotated manually or by a motor, drives a second shaft through a coiled spring, a differential gear comprising elements driven from these two shafts respectively controls the tension in the spring by positively arresting the first shaft or by opening the motor circuit. A shaft carrying a cylindrical drum 5, Fig. 1, is power driven from a shaft 2 through a worm 4 and a rack 3. To the inside of the drum 5 is attached one end of a coiled spring 6 whose other end is attached to a shaft 7, coaxial with the driven shaft. To the drum 5 is fixed a gear wheel 8 which, through intermediate gearing, drives in an opposite direction a gear wheel 13 loosely mounted on the shaft 7. The gear wheel 13 has fixed to it a sun wheel 14, Fig. 2, while to the shaft 7 is fixed an inner sun wheel 15 and meshing with both sun wheels is a planet wheel 16 carried on a sleeve 18 loosely mounted on the shaft 7. The sleeve 18 rotates at the difference in the speeds of the sun wheels, and drives through a worm wheel 84, Fig. 3, a shaft 82 carrying a lever 81. If the tension of the spring 6 becomes too great, owing to the power driven shaft having turned at an excessive speed, the lever 81 is moved either to open a contact in the circuit of the driving motor or to hold the shaft by means of a detent. A modified arrangement in which a shaft, parallel with the driving and driven shafts carries the differential gear is described with reference to Fig. 6 (not shown). The shaft 82 or the corresponding shaft in the second embodiment may close contacts to light a warning lamp when the tension in the spring becomes too low.
Patent GB-199630-A (GB)
Title: Improvements in and relating to crutch tips
IPC: A61H3/02
Filed: 1922-07-31
Abstract: 199,630. Hipwood, G., and Greller, B. B. July 31, 1922. Tips.-A tip 1 for a crutch 3 is made of yielding-material such as rubber, and is formed with a socket 2 for the reception of the crutch and a suction cavity 6. Exterior annular grooves 8 allow the tip to flex when the crutch is not normal to the ground and thereby allow the edges of the cavity 6 to remain in contact with the ground.
Patent GB-153981-A (GB)
Title: Friction braking means for cinematograph film spools
IPC: G03B21/43
Filed: 1919-08-26
Abstract: 153,981. Graham, W. A. Aug. 26, 1919. Kinematograph apparatus.-To prevent overrunning of the upper spool 2 and to provide means whereby lateral movement and vibration is obviated, its flanges are lightly engaged by springs 11, 13 and retension members 9, 15 of a springy nature. The spindle 1 on which the spool is mounted passes through a wall of the machine, and is adjustable to vary the pressure exerted by the spring 11 and by the member 9, which presses against a large washer 10 on the spindle. A pin 8 passing through the spindle and engaging a slot in a washer 7 positions the outer ends of these spring members. The other spring 13 and member 15 are carried by the door 16 and press on a washer 12 which also carries the bearing 1<A> for the outer end of the spindle 1.
Patent GB-1449375-A (GB)
Title: Television field deflection circuits
IPC: H04N3/16
Filed: 1974-05-13
Abstract: 1449375 Television time base circuits, amplifier circuits, sampling circuits MULLARD Ltd 13 May 1974 20989/74 Heading H3T A television field time-base has current negative feedback and D.C. voltage feedback the latter being obtained by a sample-and-hold circuit from the time base output circuit. The use of a sampling circuit avoids oscillation due to the feedback circuit. As shown an oscillator 12 receives a synchronising input at 10 and feeds the deflection coil L1 via a comparator 16 and an amplifier 20. A sampling circuit 24, controlled by pulses from the oscillator during the flyback, samples-and-holds the D.C. voltage in the output circuit and feeds it to one input of the comparator to stabilise the D.C. level at the output. The sample-and-hold circuit, Fig. 4, is fed by an amplifier T100, 101 receiving its input at 22, a comparator T102, 103, and a further amplifier T106, 107 arranged to charge and discharge a storage capacitor 112. A pulse at 33 allows one or other of the amplifier transistors to conduct until the comparator senses equality of the input signal at T102 and the capacitor voltage applied to T103.  The amplifier 20 is shown in Fig. 6 and comprises an input stage IC2 and a single-ended push-pull output stage including Darlington pairs T201, 202 and T203, 204, the input signal for the lower pair being derived from the upper pair via a transistor T205. Negative feedback paths are provided by R207 and by R211. A circuit 202 raises the potential of the supply line 200 during the flyback. A suitable comparator circuit is also described (Fig. 5, not shown). (For Figures see next page.)