baber/WOPTO huggingface dataset:
Patent GB-848376-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1958-09-25
Abstract: 848,376. Photographic objectives. LEITZ (CANADA) Ltd., E. Sept. 25, 1958 [Oct. 1, 1957], No. 30665/58. Class 97(1) A photographic objective comprises eight meniscus lenses arranged substantially symmetrically relative to a diaphragm in two groups, one on each side of the diaphragm, .each group having four meniscus lenses each of which is concave towards the diaphragm, the two central menisci of each group forming together a negative lens system and the two remaining menisci of each group being positive lenses. Preferably, the two central menisci of each group form a negative doublet as shown. Optical data are given for the embodiment shown and for one other embodiment.
Patent GB-206365-A (GB)
Title: Improvements in or relating to variable electrical condensers
IPC: H01G5/06
Filed: 1922-11-09
Abstract: 206,365. Barrington, G. F. Nov. 9, 1922. Condensers.-The movable plates b of a variable condenser are mounted in slots b<1> formed in an enlarged portion B<1> of the rotary spindle B and are retained in position by a slotted sleeve C surrounding the spindle. The sleeve C is prevented from rotating relatively to the spindle by a pin and slot connection c<1> and is adjusted axially, for the purpose of locking the plates b in the slots, by means of a nut B<2>. The portions of the plates engaging the slots in the spindle are provided with stamped-out projections b<x>. The fixed plates a of the condenser are similarly mounted in slots formed in the rods D and locked in position by slotted sleeves D<1>.
Patent GB-229785-A (GB)
Title: Improvements relating to the manufacture of blanks for metallic collapsible tubes and the like
IPC: B22D21/02
Filed: 1923-12-06
Abstract: 229,785. Thompson, A. J. Dec. 6, 1923. Addition to 202,242. Collapsable tubes.-In order to avoid the necessity of coating a metal dump, for forming a collapsable tube by extrusion, as described in the parent Specification, the dump is cast under pressure, as by die casting. The mould may be adjustable or adapted to cast a number of dumps at once.
Patent GB-635982-A (GB)
Title: Improvements relating to pipe stills for the continuous distillation of tar
IPC: C10C1/04
Filed: 1946-10-16
Abstract: A pipe still for the continuous distillation of tar comprises a combustion chamber at the bottom of a central uptake, a pipe coil located outside of and around the uptake in flues through which gases from the combustion chamber are drawn downwards after arriving at the top of the uptake, the total cross-sectional area of the flues being less than that of the uptake, a space formed within the main brickwork of the still by a wall which forms <PICT:0635982/III/1> part of the combustion chamber and extends upwards from the hearth thereof, and means for introducing a diluting gas into this space so that it flows upwardly from the space into the uptake.  In the preferred embodiment, flue gases recirculated by fan means through pipes 7 are introduced into the annular chamber 5 defined by main brickwork 3 and the wall 1 provided at the top with either a single annular discharge port or a series of ports.  Recirculated flue gases also pass through openings 17 leading to spaces formed below the hearth 8 by arched hearth blocks which have upwardly directed ports leading from said spaces into the combustion chamber.  Burner ports 12 may be provided for gaseous or liquid fuel firing and in a modification, Fig. 4 (not shown), in which the chamber 5 is of horseshoe shape not extending completely round the combustion chamber, said burner ports are formed in the plain wall. Specification 608,301 is referred to.
Patent GB-1465904-A (GB)
Title: Control circuits
IPC: H01L41/00
Filed: 1973-06-28
Abstract: 1465904 Charging and discharging piezoelectric stacks CAV Ltd 12 June 1974 [28 June 1973] 30877/73 Heading H2H  A system for charging and discharging a stack 10 of piezo-electric crystals comprises a capacitor 14 arranged to be charged from a D.C. source 15 by way of voltage regulator 16, the capacitor being dischargeable into the primary winding 12 of a transformer by the firing of a thyristor 17 so as to induce a voltage in the secondary winding 13 which, by way of a diode 20, charges the stack 10, firing of a second thyristor 19 then causing discharge of the stack 10 through the secondary winding 13. Provision of a diode 18 in anti-parallel with the thyristor 17 allows the recovery of energy to partially charge the capacitor 14 when the stack 10 is discharged. A diode 21 prevents charging of the stack 10 in the reverse direction. Further capacitorthyristor combinations may be connected in cascade with the combination 14, 17. The system may be used for fuel injection of an internal combustion engine.
Patent GB-1103148-A (GB)
Title: Improvements in or relating to connection devices for tractors
IPC: A01B61/02
Filed: 1966-07-08
Abstract: 1,103,148. Coupling agricultural tractors to implements. L. V. VALDEMARSSON. 8 July, 1966, No. 30881/66. Heading A1P. A telescopic strut is arranged between the tractor and the implement to prevent rearing of the tractor and is characterized by a brake 3 operable by a hydraulic cylinder 4 to lock the elements 1, 2 of the strut against relative movement.
Patent GB-927933-A (GB)
Title: Improvements in and relating to incandescent lamp supports
IPC: F21S6/00
Filed: 1958-09-26
Abstract: 927,933. Supporting electric lamps. J. D. DOBSON. Sept. 28, 1959 [Sept. 26, 1958], No. 30904/58. Classes 75 (2) and 75 (3). An electric lamp fitting comprises a lamp holder and shade combination in which the lamp is supported with its axis transverse to the axis of the shade, the latter being so constructed that it can project a beam from either end with the light more concentrated when projected from one end than from the other e.g. as described in Specification 831,307, the combination being carried by a rotatable member so as to permit endwise reversal of the shade and pivotable on the member to vary the angle of the axis of the beam to the vertical. The shade has open ends 18, 19 and the lamp holder 20 projects through the wall of the shade so that the light source is on the shade axis. The shade is mounted in a yoke 12 carried by a spigot 7 inserted in the arm 6 of a lamp support of known type consisting of a main support 2, a pivoted arm 3 balanced by opposing springs 4, 5 and a pivoted lamp carrying arm 6.
Patent GB-927845-A (GB)
Title: Improvements in or relating to electron microscopes
IPC: H01J37/20
Filed: 1959-09-10
Abstract: 927,845. Electron microscopes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 10, 1959 [Sept. 13, 1958], No. 30921/59. Class 39 (1). In an electron microscope the object carrier 17 supports the object on a pin 19 in a cooling space defined by walls 22, 23 connected to a metal block 26 at the end of a metal tube 27 having a concentric inner tube 31 which feeds cooling fluid (liquid or gas, e.g. air or nitrogen) to the face of the block 26, the fluid being discharged through a bore 34. In order that the cooling medium does not extract heat from the microscope housing the medium is heated by a heater 44 so that the discharged cooling medium is maintained at ambient temperature. The walls of the cooling chamber may substantially surround the object and the object diaphragm may also be arranged in the cooling chamber being separated from the object by a partition wall which is also cooled.
Patent GB-498215-A (GB)
Title: Improved method and apparatus for treating insulating oils
IPC: H01B3/22
Filed: 1937-11-11
Abstract: <PICT:0498215/III/1> Mineral insulating-oil for use in electrical apparatus is degasefied, treated with finely divided adsorbent to remove soluble impurities, and then charged with an inert gas.  Oil is drawn from a tank 1, and passes through a filter 3, and heater 35 maintained at 70 to 200 DEG  F., to a spray nozzle 5 mounted in an evacuated chamber 6.  Water vapour and gases are drawn off by a pump 8.  The treated oil is drawn off from the bottom of the chamber 6 and passes through a heater 36 maintained at 200 to 380 DEG  F., to a tank 37 to which fuller's earth is admitted from a hopper 39.  The mixture passes to a filter 41 from which the hot oil is fed into a second evacuated spray chamber 43.  The clean degasefied oil then passes to a chamber 15 connected a supply of compressed carbon dioxide, nitrogen, or helium 18.  The gas-charged oil then passes through a cooler 47 to a tank 20 where it is stored under a blanket of the inert gas.  The oil may be used as insulator in the type of cable described in Specification 409,678, [Group XXXVI].  The Specification as open to inspection under Sect. 91 comprises also modifications wherein the treatment with an adsorbent is omitted. The oil after passing through the evacuated degasefying chamber is charged with gas either in a gasefying chamber, or through a gas injector mounted in the oil pipe.  This subject-matter does not appear in the Specification as accepted.
Patent GB-647524-A (GB)
Title: Improvements in or relating to methods of and apparatus for pasteurising liquids
Inventor: STEGHART FRITZ LUDWIG
IPC: A23L3/18
Filed: 1946-10-18
Abstract: 647,524. Pasteurizing liquids. TINSLEY (INDUSTRIAL INSTRUMENTS), Ltd. Oct. 18, 1946, No. 31017. [Class 49] In a method of pasteurizing a liquid which includes passing the liquid through a heating device 1 to a holder 5 for the heated liquid and measuring the temperature at a point in its travel after leaving the heater, the average speed of the liquid is maintained over a predetermined length of its travel after leaving the heating device at a value not substantially less than that of the average speed of the liquid at emergence from the heating device, and the temperature of said liquid being measured at at point in the said predetermined length of travel. As shown in Fig. 1, the liquid enters a heat exchanger through a conduit 2 and flows along the path A through sections B connected by passages C and is heated by hot water passing in the opposite direction entering by conduit 3 and passing through sections D along the path E connected by conduits F and leaving at 4. The liquid leaves the heater 1 by the conduit 6 which has the same crosssectional area as that of the final section B<1>, shown in Fig. 3, of the heater through which the liquid flows and flows into the holder 5. Other modifications are shown in which the cross-section of the conduit. 6 are square. circular, the same as the section B<1> the area being in each case the same as the section B<1>. In another modification in which the liquid flows through a heater in a ribbon-like passage 10 outside of which flows a heating medium the holder is connected by a short conduit 6a, 6b, Fig. 5, so shaped that the average speed of the liquid passing through the conduit 6a, 6b is equal to the speed of the liquid passing through the passage in the heater. The cross-sectional area of the part 6b may be slightly smaller than that of the passage 10 thus increasing the speed of the liquid compared with its speed through the heater.
Patent GB-310863-A (GB)
Abstract: 310,863. British Celanese, Ltd.. Green, S. J., and Widdowson, R. R. Jan. 28, 1928. Grant of Patent opposed. Acetic and other aliphatic anhydrides are produced by heating the vapour of the acid in a known manner, and the vapours are then caused to impinge upon the surface of a stream of a liquid which is a solvent for the anhydride but insoluble in water, the liquid being at a relatively low temperature, such as -10‹ C. to 25‹ C. The liquid may be collected in a vessel and the water layer removed, after which the anhydride is separated from the solvent by distillation; or the liquid may be continuously separated by using a vessel with a run-off near the top or the bottom or both so as to separate the layers. The solvent may be benzene, or mixtures of ether or chloroform with one or more hydrocarbons such as paraffins, petroleum ether, gasoline, kerosene, benzene, or benzene homologues. The acetic or other acid vapour may be decomposed with or without the use of catalysts in any suitable way, for instance by passing through a tube of copper, fireclay, or fused silica heated to 400-1000‹ C., and reduced pressure may be used, or the vapour may be diluted with indifferent gases such as nitrogen or carbon dioxide, and the initial material may be dilute or concentrated, for instance waste acid from the acetylation of cellulose may be used. The reaction vapours pass from the reaction zone 1 by a pipe 2 to the condensation vessel 3, which is fed with solvent from a tank 4. The solvent flow in a rapid stream to the outlet 6 having a constant level overflow 7. Perforated baffles 8 and 9 are arranged in the vessel 3, which is cooled by cold water or brine in a jacket 11 to maintain a temperature below 20‹ C. The vapours impinge on the stream of solvent from a nozzle 12. The liquid and condensates pass to a vessel 14 and two layers are formed, the upper one, containing the solvent and anhydride flowing off by a constant level overflow 15 to a collecting vessel 16, while the lower aqueous layer passes out by a pipe 17 to a vessel 18, and in so doing is scrubbed by an ascending stream of solvent fed by gravity from the tank 4 via the pipe 19 and nozzle 20. The water is run off to waste by a pipe 21. Any gas in the vessel 3 may be allowed to escape by an outlet 22 and may be suitably scrubbed. Specifications 279,916, 298,667, and 303,772 are referred to.
Patent GB-208173-A (GB)
Title: Improvements in or relating to hydraulic variable speed gearing
IPC: F16D31/06
Filed: 1923-03-06
Abstract: 208,173. Tesse, F., and Durand, E. March 14, 1922, [Convention date]. Clutches and speed-varying mechanism. - Means for the hydraulic transmission of power comprises a driving shaft a, Fig. 1, provided with a drum having sliding vanes h, and a casing f. The casing may be mounted on the driven shaft e, Fig. 4, by rods s passing through a boss on the end of the shaft, inclines u, v co-operating with arms x on the rods for varying the eccentricity, or the casing may be provided with cylinders p, Fig. 6, with adjustable pistons P for varying the quantity of liquid therein.
Patent GB-218565-A (GB)
Title: Improvements in or relating to coin freed machines for delivering cigarette packets, or the like
IPC: G07F11/20
Filed: 1923-12-11
Abstract: 218,565. Foskett, H. C., Foskett, H. G., and Foskett, A. C. Dec. 11, 1923. Delivery of articles stored in piles; exhibiting coins.- In coin-freed apparatus for delivering cigarettes &c. of the kind in which a coin after freeing the machine passes to a compartment, where it is exposed to view until further operation of the machine by another coin, the coin passes to an aperture 36 in a slide 28, Figs. 2 and 5, on an inclined wall 25 of the exhibiting compartment, being guided thereto by guides 27, 34. The slide is operated by movement of the delivery drawer 10 through linkwork 12, 29, 30, 31, 32 to carry the coin over an aperture 37 through which it drops to the cashbox. The link 12 is connected to a pin 13 depending from the drawer and working in a slot in a plate 22, the link 29 being pivoted to a fixed block 33 and the link 32 being connected to the slide. The link 31 rocks about a. fixed pivot 40 at its middle point. Coin action, thrust.-Movement of the drawer 10 is normally prevented by the pin 13 abutting against the end of a lever 15 pivoted at 16 and held in blocking position by a spring 17. A coin inserted in a slot 18 passes between a fixed block 35 and a plate 19 on the other end of the lever 15 and slightly rotates the lever to allow the drawer to be pulled out. As the drawer is being opened, the pin 13 moves along a cam 23 on the lever to rotate this still further and allow the coin to drop to the exhibiting compartment. Should a coin become jammed in the slot 18, the drawer cannot be closed since the pin 13 would engage a hooked spring catch 26 fixed to. the side of the lever 15.
Patent GB-286777-A (GB)
Title: Machine for inserting pressboards into cloths
IPC: B65H45/101
Filed: 1926-12-08
Abstract: 286,777. Menschner, J. Dec. 8, 1926. Cuttling and folding transversely. - In a machine for inserting pressboards into and folding cloth the table 14 receiving the pile of goods 19 can be folded downwards or displaced laterally to allow the goods to drop on to a support, e.g. a conveyer band 20. As shown, the table is in two parts which are pivoted at 2, and connected through gearing &c. 17, 7, 9 to a lever 10 by which they can be raised into the position shown and then retained by props 4 on a shaft 6 provided with an operating handle 5.
Patent GB-1145583-A (GB)
Title: Fungicidal agents
Inventor: DEGENER EBERHART
IPC: C07D207/456
Filed: 1967-07-06
Abstract: 1,145,583. N-methyl dichloromaleic imides. FARBENFABRIKEN BAYER A.G. 6 July, 1967 [19 Sept., 1966; 1 March, 1967; 14 April, 1967], No. 31215/67. Heading C2C. [Also in Divisions A2 and A5] The invention comprises novel compounds of the general formula wherein X = OH, Cl, Br, -OR, -O-CO-R<SP>1</SP>, or -SR<SP>11</SP>, R = optionally substituted alkyl, alkenyl, cycloalkyl, optionally substituted aryl or dichloromaleic imidomethyl; R<SP>1</SP> = optionally substituted alkyl, alkenyl, cycloalkyl, optionally substituted aryl, alkoxy or aroxy; R<SP>11</SP> = alkyl or optionally substituted aryl. (N - Hydroxymethyl) - dichloromaleic imide may be prepared by reacting dichloromaleic imide with an excess of formaldehyde. This product may then be chlorinated or brominated to yield the (N-chloromethyl)- or (N-bromomethyl) derivative. Compounds with X = OR, -SR<SP>11</SP> and -O-CO-R<SP>1</SP> may be prepared by reacting N-chloro methyl dichloromaleic imide with R-OH, R<SP>11</SP>-SH and R<SP>1</SP>COCl (or R<SP>1</SP>CO-O-COR<SP>1</SP>) respectively. The compounds prepared in the examples have X = OH, Cl, Br, -OC 2 H 5 , -OCH 3 , -OCOCH 3 , -OC 3 H 7 , -OCH(CH 3 ) 2 , -OC 4 H 9  and -OCH 2  CH(CH 3 ) 2 . Dichloromaleic imide may be prepared by reacting dichloromaleic anhydride with urea.
Patent GB-1355309-A (GB)
Title: Rotary valve operator
IPC: F16K31/163
Filed: 1972-07-04
Abstract: 1355309 Valves; linkwork; cams F M C CORP 4 July 1972 [8 July 1971] 31237/72 Headings F2V and F2K A valve actuator as described in Specification 1,262,605 includes a housing 12 that serves to mount the actuator on a valve and is fluid tight to act as one half of a double acting cylinder, fluid pressure being applied to a port 12a in the housing or a port 50a in a detachable cylinder 50 connected to the housing to effect movement of the piston 22 and consequent movement of a rotary valve member. The housing is provided with guiding grooves (44) (Figs. 4 and 5, not shown) which retain a bearing member 42 of the interconnecting mechanism between the piston and the rotary valve. Reference has been directed by the Comptroller to Specification 1,262,605.
Patent GB-262935-A (GB)
Title: Improvements in or relating to travelling grates for boilers or the like
IPC: F23H11/04
Filed: 1925-12-11
Abstract: 262,935. Woolley, F., and Campbell, A. E. Dec. 11, 1925. Grates.-A travelling grate comprises fuel-supporting members each consisting of a horizontal slotted portion 1, an inclined perforated portion 4, and a curved portion 6. The side flanges 7 are connected by a U-shape channel member 8 adapted to engage with the rods carried by the side links of the grate chains. A chamfered portion 9 of each member is adapted to rest on the inclined portion 4 of an adjacent member.
Patent GB-1182447-A (GB)
Title: Semiconductor Element with Transverse-Field Emitter
IPC: H01L29/10
Filed: 1967-07-07
Abstract: 1,182,447. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. 7 July, 1967 [9 July, 1966], No. 31347/67. Heading H1K. An outer zone 3 of a multi-zone semi-conductor device has diffused therein an annular emitter region 2 of one conductivity type extending around the peripheral edge of the zone 3, and an inner control region 6 of opposite conductivity type to the region 2 and spaced therefrom. A control electrode 7 is provided on the inner region 6, and the emitter region 2 carries an annular electrode 8, the outer edge of which is spaced from the peripheral edge of the region 2 by at least ten times the thickness of the outer zone 3. The inner peripheral edge of the electrode 8 is also spaced from the corresponding edge of the region 2. The region 2 thus acts as a transverse-field emitter. The electrode 8 is preferably of Ni and Au, the regions 2 and 6 being respectively of N + and P + types, while the three zones 3, 4, 5 have a PNP configuration.
Patent GB-933912-A (GB)
Title: Improvements in or relating to grain distributing devices in a combine harvester
IPC: B65G69/02
Filed: 1958-10-01
Abstract: 933,912. Combine-harvesters. MASSEY-FERGUSON G.m.b.H. Sept. 30, 1959 [Oct. 1, 1958], No. 31417/59. Class 6(3). [Also in Group XXX] In a combine harvester, grain is elevated by chain conveyer 33 and falls into receptacle 35 whence it is discharged into rotary perforated screen 37 by auger 36. The screenings fall, and are then discharged down shoot 42 by auger 41, whilst the larger grain falls down passage 39 into the shallow longitudinal hopper 40. Along the top of said hopper 40 is shaft 43 carrying augers 44, 45, 46 which serve to spread the grain along the length of the hopper. Alternatively, the screen may be omitted so that the grain is elevated to fall into the hopper and is then spread along the hopper by an auger.
Patent GB-347157-A (GB)
Title: Method of producing wood grain on metal and the like
IPC: B41M3/06
Filed: 1929-10-16
Abstract: 347,157. Printing processes. MASA GES. ZUR HERSTELLUNG KœNSTLICHER OBERFL€CHEN, 4, Alexanderufer, Berlin. Oct. 16, 1929, No. 31495. Convention date, Oct. 16, 1928. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] An imitation of wood graining is produced on metal, glazed cardboard, "Presszell," ceramic products, or other materials by applying the ground colour of the wood in glossy colours to the surface to be decorated, and printing thereon the wood graining. Aluminium bronze or other material may be added to the ground colour, or a coating of varnish may be applied to a non-glossy groundcolour coating.
Patent GB-869018-A (GB)
Title: Improvements in or relating to centrifugal pumps
Inventor: MCALPINE THOMAS
IPC: F04D29/42
Filed: 1957-10-10
Abstract: 869,018. Centrifugal pumps. WEIR Ltd., G. & J. Oct. 9, 1958 [Oct. 10, 1957], No. 31663/57. Class 110 (1). A centrifugal pump which is surmounted by its driving motor comprises a pump casing 14, an end cover 13 on the end of the pump casing opposite the suction intake, a driving motor 11 operatively connected to the impeller shaft 16 and mounted on the end cover 13, a pump impeller 15 on the shaft 16, a diffuser 18 mounted on the end cover, one or more packing- rings 20 spacing the diffuser from the impeller, and a suction intake guide 21 having a slightly flexible sealing-plate 23 which is mounted on the pump casing and separates the suction chamber from the discharge. chamber of the pump. The impeller, diffuser, packing-ring or rings, and the suction intake guide have mating surfaces whereby they may be positively centred relatively to one another prior to assembly in the pump casing so that any slight misalignment of the motor with pump casing does not adversely affect the operation of the pump. The diffuser 18, as shown, is centred on a spacer 19 in turn centred on the end cover 13. The motor 11 is mounted on a bracket extension 12 of the cover 13. The plate 23 may be integral with the suction intake guide 21, as shown on the left of the Figure and be provided with a sealing face 24, or it may be freely centred on the intake guide, as shown, on the right and co -operate with sealing faces 25, 26.