baber/WOPTO huggingface dataset:
Patent GB-321488-A (GB)
Title: Improvements relating to refrigerating apparatus
IPC: F25B17/00
Filed: 1928-08-31
Abstract: 321,488. Fitzpatrick, H. D., (Naamlooze Vennootschap Kodowa Refrigerator Co.). Aug. 31, 1928. Refrigerating, absorption machines for.-Means are provided for preventing flow of unevaporated refrigerant bark to the absorber, due to overfilling of the evaporator, and for the return of solvent collected in the evaporator. A generator-absorber 1 is connected through a valve 4 and pressure pipe 2 to acondenser 3 and liquefied-gas receiver 6, and the several evaporators 22 are supplied from the receiver through hand-operated valves 13 in pipe connections 1<a>, 7. Each evaporator is fitted at the top with a float chamber 21 containing a float valve 12, Fig. 2, adapted when the evaporator is filled with liquid to seat against the end 15 of a branch pipe 11<a> to the common suction or return pipe 11 and almost close the outlet from the evaporator, so that only evaporated refrigerant can return to the generator-absorber. The valves 13 comprise needle valves 23, Fig. 4, pressed against their seatings by springs but opened by hand levers 26 pivoted to the stems and casings. Check valves 9 provided in connections from the pressure conduits 7 prevent flow of refrigerant from one evaporator to another under difference of pressure. The pressure pipe 2 is connected through a valve 18 to the suction pipe 11, which is fitted with a valve 14, and a valve 17 is provided in a connection from the check valves 9 to the generator-absorber, so that by closing the valves 4 and 14 and opening the valves 17, 18, the condenser pressure may be transmitted through the suction pipe to evaporators, when solvent will be blown back to the generatorabsorber.
Patent GB-1267480-A (GB)
Title: Process for the manufacture of a free-flowing titanium dioxide pigment
IPC: C09C1/36
Filed: 1970-05-22
Abstract: 1,267,480. Post-treated TiO 2 . TITAN G.m.b.H. 22 May, 1970 [27 May, 1969], No. 25032/70. Heading C1N. Pigmentary TiO 2 , is treated in aqueous suspension with inorganic substances to precipitate at least one colourless or white compound in the suspension, and is then, without prior drying, wet ground in a sand mill and spray dried. The pigment may be filtered and washed before or after grinding. In the examples, TiO 2  + Al 2 O 3 , and SiO 2  + Al 2 O 3 , were precipitated in the suspension. During grinding, using sand, e.g. 0À7 mm. in size, the TiO 2  may be passed 2 or 3 times through the mill. An organic substance, e.g. tetraethylene glycol, may be added before spray drying.
Patent GB-1100377-A (GB)
Title: Improvements in pumping and spraying devices
IPC: B05B11/02
Filed: 1965-06-14
Abstract: A spray device comprises a piston 7 adapted to be manually depressed so as to compress air in a cylinder 6 and force it through an absorbent pad 3 impregnated with liquid, a shaft 9 which is provided with an axial capillary bore 12 and to the upper end of which the piston 7 is secured, and a piston/valve member 13 arranged to be engaged within a cylinder 15 by the enlarged head 23 of the shaft 9 so as to raise the liquid from its container to the pad on reciprocation of the piston 7.  The members 7 and 13 are both spring-loaded and in the inoperative position the member 13 co-operates with the cylindrical end 22 of an extension of the container cap 2.  The liquid reaches the bore 12 via channels 20, 20\sv cut in the interior walls of the cylinder 15 and passes into the pad through a radial bore 21 which is located above the pad in the rest position Fig. 1, and is successively lowered, on depression of the piston 7, down to and below the level of the pad.  Initial depression of the piston helps to pressurize the container through said radial bore.  A nozzle 19 communicates with the pad 3.  In the embodiment of Fig. 4 (not shown) the shape of the hemi-spherical member 13 is modified.
Patent GB-420502-A (GB)
Title: An improved process for drying artificial silk in the form of spun cakes
IPC: D01D10/04
Filed: 1934-08-31
Abstract: The process of drying artificial silk claimed in the parent Specification is modified by drying the spun cakes in a vacuum. Heat may be supplied to the inside of the cakes by heating bodies, e.g. tubes, or a drying medium may be fed thereto.  Measured quantities of steam or vapour may enter the drying space intermittently or continuously.
Patent GB-1005856-A (GB)
Title: Improvements relating to telescopic dampers
Inventor: AVNER DAVID ALAN
IPC: F16F9/44
Filed: 1962-06-30
Abstract: 1,005,856. Telescopic dampers. GIRLING Ltd. May 23, 1963 [June 30, 1962], No. 25190/62. Heading F2S. A fluid-filled single-tube telescopic damper has a reciprocating piston 12 with a valve 21 which controls the flow of fluid through the piston in both directions and is adjustable by means of a screwed nut 24 in threaded engagement with the piston rod 13; the nut 24 having means 26 whereby, when the damper is extended, the nut is keyed by the lug 26 to holes 27 and a dished washer 28 non- rotatably associated with the end-closure 15 of the cylinder 10, so that the axial position of the nut may be adjusted by relative rotation between the cylinder 10 and piston-rod 13 to vary the loading on the valve 21. The valve 21 consists of one or more annular plates or shims which on their outer periphery seat on an annulus 22 on the piston and on their inner periphery seat at 23 on the nut 24. A passage 25 extends from the valve through the piston and a bleed orifice 29 is provided through the nut for flow independent of the valve 21. A floating piston 18 with an O-ring seal isolates the upper end of the cylinder. The projecting portion of the piston rod 13 is protected by a boot 16.
Patent GB-369520-A (GB)
Title: Improvements in a tractor pulley
IPC: B60K25/00
Filed: 1931-09-08
Abstract: 369,520. Tractors with driving pulleys. FORD MOTOR CO., Ltd., 88, Regent Street, London.-(Assignees of Simpson, H. W. Dearborn, Michigan, U.S.A.) Sept. 8, 1931, No. 25241. Convention date, Sept. 8, 1930. [Class 79 (ii).] Relates to tractors having a pulley 25 driven from the power unit and mounted on a housing 15 bolted to and extending into the tractor body, the pulley being situated between the tractor body and one of the driving wheels 11. According to the present invention the inwardlyextending portion 19 of the housing 15 is of substantially U-shaped or channel section so as to permit of the housing being angularly inclined, as shown at 45, Fig. 3, when it is desired to remove the pulley and housing without removing the driving wheel 11. In the construction shown a bevel pinion 21, constantly driven by a gear wheel 14 on the main clutch shaft, can be connected to the external pulley 25 by a sliding clutch 30. The pinion 21 is integral with a sleeve 22 carried in a bearing 20 in the housing 15, and the pulley 25 is fixed by splines 24, a tapered bush 26, and a nut 27 to a shaft 23 carried at one end in a bearing 18 on the housing and at the other end in the sleeve 22. A clutch sleeve 30 splined on the shaft 23 may be slid into engagement with splines on the sleeve 22, so as to lock the pulley to the pinion 21, by a crank 32 operated by a handle 35 which is resiliently held in the engaged and disengaged positions by a pin 39 engaging notches in the housing. The housing is bolted to the gear casing 12 with the open end of the U underneath, so that the oil thrown, up by the engine flywheel 43 is splashed into the housing and lubricates the shaft and bearings. When it is desired to remove the housing the bolts 17 are removed, and the housing is rotated until the open end of the U faces the rear of the tractor; the housing can then be tilted to the position indicated at 45, Fig. 3, and its projection 19 can be removed from the opening in the gear case 12.
Patent GB-1498377-A (GB)
Title: Alkyne derivatives and process for their preparation
IPC: A61K31/22
Filed: 1976-06-18
Abstract: 1498377 Alkyne derivatives MERCK PATENT GmbH 18 June 1976 [19 June 1975] 25479/76 Heading C2C Novel compounds I in which R<SP>1</SP> is H, C 1-4  alkyl or phenyl, R<SP>2</SP> is H, C 1-6  aliphatic acyl or aroyl with up to 11 C atoms, each of R<SP>3</SP> and R<SP>4</SP> is H, F, Cl or Br and n is 0 or 1, provided that when R<SP>1</SP> is H or methyl, R<SP>2</SP> is H, R<SP>4</SP> is H and n is 0, R<SP>3</SP> is F, Cl or Br, and their physiologically acceptable metal salts, are prepared by solvolysing of compounds II in which Q is a functionally modified OH group, followed, if desired by acylating a resulting compound I in which R<SP>2</SP> is H, or converting a compound I to a salt thereof or liberating a compound I from a salt thereof. The radical Q in a compound II may be a group OM (where M is an equivalent of a metal or MgHal, CaHal, SrHal or BaHal), acyloxy, alkoxy or halogen. Compounds II in which Q is OM may be prepared by (a) reacting a ketone III with a metal acetylide or diamine complex thereof, or (b) reacting an enolate of the ketone III with acetylene, or (c) bu Grignard synthesis from a ketone of formula R<SP>1</SP>-CO-C#CH or R<SP>3</SP>, R<SP>4</SP>-C 6  H 3 -(O) n -(p)-C 6 H 4 -CO-C#CH or a lithium derivative thereof. Compounds II in which Q is acyloxy can be obtained by reacting a compound II in which Q is Cl or Br with an alkali metal salt of the appropriate acid. Pharmaceutical compositions having antiinflammatory, analgesic and anti - pyretic activity for enteral, parenteral or topical administration, comprise one of the above novel compounds together with a pharmaceutical carrier.
Patent GB-1426923-A (GB)
Title: Reversible regenerative motor circuits
IPC: H02P7/29
Filed: 1973-05-30
Abstract: 1426923 D.C. motor circuits LANSING BAGNALL Ltd 6 May 1974 [30 May 1973] 25641/73 Heading H2J A D.C. motor circuit adapted for reversible motor drive and regenerative braking in either direction comprises a series arrangement of the armature between two electrically controlled switches, and two opposing field windings, each arranged in a respective free-wheeling loop which includes a respective free-wheeling diode, the armature of the motor and a respective one of the switches. As shown, the switches are constituted by thyristors 3, 5 and additional diodes 10, 11 are connected respectively between the junctions of the field coils 7, 9 and the freewheeling diodes 6, 8 and the junctions between the armature 4 and the thyristors 3, 5. Switching is controlled by a pulse source 12. For forward driving both thyristors are initially turned on and a substantial armature current is established. Thyristor 5 is then turned off and current circulates in the loop containing diode 8 and field 9. Thyristor 5 is then turned on again to re-establish the armature current and the process is repeated. For locating in the forward direction, from a state when both thyristors are on, thyristor 3 is turned off and thyristor 5 is pulsed, current flowing in the loop including field 7 and diode 10 when thyristor 5 is on, and regeneratively in the circuit 7, 10, 8, 9 when thyristor 5 is off. Reverse driving and braking are effected analogously.
Patent GB-186348-A (GB)
Title: Hot water heating installation
IPC: F24D3/02
Filed: 1922-09-22
Abstract: 186,348. Lemaistre, M. J. G. A. Sept. 26, 1921, [Convention date]. Heating buildings.- A hot water system is provided with a circulating device ha.ving an intermittent action and comprising an upper steam chamber 2, an intermediate chamber 2a preferably of smaller diameter, and a lower chamber 2<b> of still smaller diameter, the upper chamber being connected at its lower end to the upper part of the boiler A and the intermediate chamber 2<a> being connected to the lower part.. The chamber 2 is provided with a depending chamber m, dividing it into inner and outer chambers p, q, the chamber p being connected to an expansion receptacle B by way of pipes b, d. The receptacle B is open to the atmosphere. When the boiler is in operation, water circulation in the boiler and circulating device is maintained by the pipes 3a, 3b. Steam collects in the annular chamber and ejects the water therefrom until the steam reaches the bottom of the partition m. It is stated that an annular seam bubble forms around the bottom of the partition and then escapes into the chamber p which is filled with water. This is said to result in a sudden expulsion of water and steam into the receptacle B so that the circulating device is partly emptied. Water flows from the receptacle B through the pipe e to the heaters R and returns therefrom through the pipe g to a chamber C surrounding the tubes b. The chamber C has a pipe connection g<1> to a water coil situated in the receptacle B and comprising annular chambers n<1>, n<2> connected by vertical pipes. The water is returned to the circulating device through the pipe g<2> of varying diameter and provided with orifices o<1>, o<2>, o<3>, o<4>. A non-return ball valve s and a flap valve s<1> are fitted to the system, where shown. The discharge pipe d is provided with a bell-shaped member m<1> having apertures in the lower part thereof, the device reducing the force of ejection and preventing noise. In a modification, the chamber 2 is fitted directly on the boiler, the circulating pipes 3b being located in the latter and the return pipe g passing through the bottom of the chamber 2b to the bottom of the boiler. In a further modification, the discharge pipe d enters the receptacle B through the bottom thereof. In some cases the chamber 2<b> may be open at the bottom to the boiler.
Patent GB-462982-A (GB)
Title: Improvements in typographical slug casting machines
IPC: B41B11/88
Filed: 1935-09-18
Abstract: 462,982. Type-bar-making machines. CLEMO, F. A. (Mergenthaler Linotype Co.) Sept. 18, 1935, No. 25896. [Class 100 (iii)] Metal-pumps.-To facilitate the casting of large slugs, means controlled automatically by the size of the mould are provided for varying the pressure on the pump plunger, a second spring being brought into action when a large slug is to be cast. The pump plunger E, Fig. 1, is connected to an operating- lever E<3> mounted loosely on a rod E5, which is carried by a bracket F, extending between a central framemember G and a side frame-member G<1>, as shown in plan in Fig. 2. The lever E<3> is controlled, as usual, bv a cam E<9>, and has an arm E<7> projecting beneath a lever E<11>, to which is connected an actuating - spring E<12>. An arm E<20> on the lever E<3> extends beneath a lever E<17>, to which is connected an auxiliary spring E<19>. A sliding stop H, Fig. 3, is normally held by a spring in the path of the lever E<17>, so that the spring E<19> is inoperative. A block J, fixed adjacent to the leading end of each of the larger moulds, acts through levers K, K<4> to withdraw the stop H and to permit the spring E<19> to act on the pump lever.
Patent GB-963249-A (GB)
Title: Improvements in or relating to universal joints
Inventor: DUFFIELD FRANCIS WALTER NORMAN
IPC: F16D3/38
Filed: 1959-07-29
Abstract: 963,249. Universal joints. MECHANICAL JOINTS (BIRMINGHAM) Ltd. July 29, 1960 [July 29, 1959], No. 25952/59. Heading F2U. A Hooke's joint comprises shaft-hubs 4 of uniformly square cross-sectional shape having fork arms 7 with tapped holes into which are screwed pivot-pins 9 engaging with their cylindrical ends 12, pockets 11 in an intermediate block 3 of nylon &c. Tapped or splined blind bores 5 receive the ends of the connected shafts.
Patent GB-1015771-A (GB)
Title: Process for preparing glycol monoesters
IPC: C08G63/16
Filed: 1962-07-06
Abstract: Glycol monoesters of formula RR1CH.CH(OH)CRR1.CH2O.CO.CHRR1 wherein R and R1 are each an acyclic or cyclic hydrocarbon group are prepared by contacting an aldehyde RR1CH.CHO (4-10 C atoms) with an alkali metal alkoxide catalyst at 65-105 DEG  C, and a concentration of not more than 2% by weight, for not more than three hours.  Aldehydes may be isobutyraldehyde, 2-methylbutyraldehyde, 2 - ethylbutyraldehyde, 2 - methylpentanaldehyde, 2 - ethylpentanaldehyde, 2 - ethylhexanaldehyde, 2 - phenylpropionaldehyde and 2 - cyclohexylpropionaldehyde. Examples describe the preparation of 3-hydroxy - 2,2,4 - tri - methylpentylisobutyrate, 3 - hydroxy - 2 - ethyl - 2,4 - dimethylhexyl 2 - methylbutyrate, 3 - hydroxy - 2,2,4 - triethyl hexyl 2-ethyl butyrate and 3-hydroxy-2-methyl-2,4-diphenylpentyl 2-phenyl propionate.  The products may be dehydrated to yield unsaturated alcohol esters.
Patent GB-687145-A (GB)
Title: Method of hardening synthetic resin coatings
IPC: B05D3/04
Filed: 1949-10-10
Abstract: Damaged patches in the internal linings of containers made of metal or other heat conducting material lined with a hardened synthetic resin, e.g. casks or barrels for storing beer and other potable liquids, are repaired by applying to said damaged patches, by brushing or spraying, one or more coatings of a thermo-hardenable synthetic resin and hardening the coating by blowing thereon hot air under pressure without applying any external lagging to the container to prevent heat loss.  The temperature of the air blast is preferably 130-220 DEG  C.  Reference has been directed by the Comptroller to Specification 376,047, [Group III].
Patent GB-1300728-A (GB)
Title: Electronic sound alarm clock
IPC: G04C21/28
Filed: 1970-05-29
Abstract: 1300728 Time-alarm signalling arrangements MATSUSHITA ELECTRIC WORKS Ltd 29 May 1970 [31 May 1969 11 Dec 1969] 26031/70 Heading G3T At pre-set times a clock mechanism closes a switch thereby energizing electronic A. F.  oscillator and modulation circuitry to produce an acoustic alarm signal from a loudspeaker In Fig.3, when a switch 7 is closed at a time t o  Fig.4A an oscillator circuit 39 is energized by a voltage Fig.4D (not shown) across R36 of a voltage divider R36, R38 and a capacitor 35 begins to charge Fig.4C (not shown). A relatively constant level sound So Fig.4E(not shown) is produced until at time t 1 , when C35 has charged to a certain level, a transistor 37 conducts and current through R36 increases gradually until C35 is fully charged. Thus the input voltage to the oscillator gradually increases and hence also the sound level. The oscillator operation is not described but it is said to produce from the loudspeaker a waveform as shown Fig.4E (not shown). A reset signal S 3  Fig.4G (not shown) from the clock stops the alarm sound. In another embodiment Fig. 5 the DC input is chopped by an astable multi-vibrator 10 the square waveform output Fig. 6B (not shown) of which causes periodic conduction of a transistor amplifier 11. A capacitor 18 is charged via Tr11 and R17. The voltage across R24 is applied to a blocking oscillator and speaker unit 12 (not described). As before, when the charge in C18 reaches a certain level Tr19 conducts and the voltage across R24 gradually increases giving an interrupted pulse train waveform as Fig. 6E (not shown). If other than the blocking oscillator is used an uninterrupted modulated sound waveform Fig. 6F (not shown) is produced. In a further embodiment Fig. 7 (not shown) a multi-vibrator modulates the current through a transistor 11 and blocking oscillator/speaker unit 12. Other variations of the circuitry are illustrated in Figs.1, 9, 11, 13 (not shown). The circuits Figs. 11, 13 (not shown) include a "snooze" switch which interrupts the alarm signal when pressed, for a period determined by an RC circuit.
Patent GB-379380-A (GB)
Title: Improvements relating to two stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1931-06-01
Abstract: 379,380. Two-stroke engines; valve gear. JAMESON, J. L., Elland, Heming- ford Road, Cheam, and JEARUM, F. C., Eldoret, London Road, North Cheam, Surrey. June 1, 1931, No. 26052. [Classes 7 (ii), 7 (iii), and 7 (vi).] In a two-stroke engine having an isolated combustion chamber 20, Fig. 5, air, compressed under a piston 12, is admitted by an oscillating plug valve 23 to the combustion chamber 20, where compression-ignition of fuel, injected through an orifice 25, takes place ; the combustion products are admitted by a further plug valve 24 to the working side of the piston 12. Two admission valves 16 and one exhaust valve 19 are operated by face cams 31, 36, Fig. 1, and water is injected through an orifice 26. The valves 23, 24 are oscillated by forks 42, 43 which are pivoted to gimbal rings 40, 41 sliding in slanting peripheral grooves formed in spherical projections of the cam shaft. Reciprocating pumps.-Fuel and water-pump pistons 51, Fig. 4, are reciprocated through connecting-rods and straps 49, 48 from eccentrics 46 on the cam shaft. Regulation is effected by holding open the delivery valves 55 by cams 62, Fig. 1, which are keyed to a shaft 71 but slidable axially to vary the timing. Specification 12755/98, [Class 7, Air and gas engines], is referred to.
Patent GB-186616-A (GB)
Title: An improved process for distilling tars
IPC: C10C1/04
Filed: 1922-09-27
Abstract: In distilling wood tar in presence of coke or charcoal, products are obtained which may be used as fuel in Diesel engines or mixed with alcohol, benzol, petroleum, &c. as fuel for motor-car engines.
Patent GB-399973-A (GB)
Title: Improvements in the anode insulation of mercury vapour rectifiers
IPC: H01J13/16
Filed: 1932-09-20
Abstract: 399,973. Mercury-vapour rectifiers. ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Sept. 20, 1932, No. 26127. Convention date. Sept. 21, 1931. [Class 39 (i).] A rectifier having a metallic container 8, Fig. 2, is provided with an insulator 13 which bears against the anode 1, is thermally insulated from the leading-in insulator 12, and is in direct or indirect contact or nearly so with the insulator 12 to screen the anode leading-in bolt 2 from the space around the anode. The mercury joint between the bolt 2 and the insulator 12 comprises a spring-pressed gland 6 and packing 7. The bolt is provided with a heat radiator 10. The insulator 13 may be separated from the insulator 12 by asbestos placed along a plane, conical or a spherical surface, or by a thin metal sleeve 14 which may support the anode shield 11. In a modification, the insulator 13, Fig. 3, may carry the sleeve 14 and may be pressed against the anode by a spring 17. The anode shield is secured to the insulator 13 or to the sleeve 14. The short distance between the packing 7 and the collar 16 eliminates thermal stresses in the insulator 12. The sleeve 14 may be omitted, the insulators interengaging one with the other. In further modifications,'the insulator 13, Fig. 4, may be separated from the shield 11 by an appropriate clearance, or it may carry a screen 14 which prevents condensate from a collar 15 dripping on to the anode.
Patent GB-1090075-A (GB)
Title: Electric storage batteries
Inventor: MCEWAN KEITH JOHN BRUCE
IPC: H01M50/529
Filed: 1963-07-02
Abstract: 1,090,075. Accumulators. JOSEPH LUCAS (INDUSTRIES) Ltd. June 22, 1964 [July 2, 1963], No. 26154/63. Heading H1B. Electrode groups 6 are connected through an intercell partition 5 by a slug 8, the whole being welded and rings 11 are provided to form a fluidtight seal. In a modification slug 8 is integral with one of the groups 6.
Patent GB-1479763-A (GB)
Title: Process for the regeneration of sulphuric acid
IPC: C01B17/90
Filed: 1974-06-13
Abstract: 1479763 Regenerating sulphuric acid HOECHST AG 13 June 1974 [14 June 1973] 26266/74 Heading B1B 65-95% sulphuric acid, is regenerated by treating in a Pauling plant, distilling the resulting concentrated acid, continuously adding the distilled acid to boiling concentrated sulphuric acid and condensing the resulting vapour. The acid may be pre-treated with kieselguhr, bleaching earth and/or active charcoal. Positive tri- or penta-valent nitrogen compounds and/or compounds of tetra- or penta-valent vanadium or hexavalent chromium may be added to the acid to be worked up.
Patent GB-1405625-A (GB)
Title: Optical device
IPC: H04N3/06
Filed: 1972-06-06
Abstract: 1405625 Optical scanning AGA AB and BOFORS AB 6 June 1972 [7 June 1971] 26314/72 Heading G2J A "scanning slit" is obtained at 7 by illuminating a covered slit 2 by a lamp 5 a lens 1 and projecting the light through a polygonal rotating cylinder 3 and lens 4. The slit is curved concavely to the prism 3 at right angles both to the optical axis 7 and to the axis of symmetry of the cylinder 3.