baber/WOPTO huggingface dataset:
Patent GB-950907-A (GB)
Title: Improvements relating to punched card or tape reading heads
Inventor: TEMPEL JULIAN ANDRE
IPC: H03K3/013
Filed: 1962-01-30
Abstract: 950,907. Sensing record cards and tapes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 11, 1963 [Jan. 30, 1962], No. 3535/62. Heading G4M. To overcome the effects of contact bounce in a pin-type sensing apparatus, the outputs of the contacts are interrogated by a pulse produced in the middle of the reading period while the contacts are in a stable condition. The outputs of the contacts are connected to an OR gate 1 to produce an output as soon as one or more of the contacts are actuated, and AND gate 2 being opened at this time, monostable circuit 3 is triggered on for half the reading period. When circuit 3 relapses to its stable state, pulse generator 4 operates to produce the interrogating pulse, and at the same time triggers mono-stable circuit 5 which remains on and closes gate 2 until after the end of the reading period.
Patent GB-939722-A (GB)
Title: Improvements in or relating to fluid control valve assemblies
Inventor: BUTCHER RAYMOND JOSEPH
IPC: B60P1/16
Filed: 1959-02-02
Abstract: 939,722. Fluid-pressure servomotor control systems; valves. TELEHOIST Ltd. Feb. 4, 1960 [Feb. 2, 1959], No. 3541/59. Class 135. A valve assembly connected between the pressure and suction sides of a pump and controlling flow to a point of use and a by-pass comprises a housing 2 having a passage 8 connected to the pump discharge and a passage 7 connected to the suction side of the pump. A valve 16 controls flow to and from the point of use and a valve 15 controls a by-pass passage 9. Each valve 15, 16 is provided with a restricted passage 17, 18 in its side and a larger axial bore 19, 20 controlled by flats 39, 40 on spindle pilot valves 27, 28. The spindles are actuated by a common lever 37. With valves in the position shown, the valve 15 opens the by-pass and the valve 16 is closed, holding fluid in the working circuit. To release the fluid in the circuit both spindles are raised thus opening the valve 16, the valve 15 does not open further since it is at the limit of its upward movement. To feed fluid to the circuit, the spindles are moved downwards, thus closing the valve 15, the valve 16 being seated as shown. Closing the bypass increases the pressure in the passage 9 which opens the valve 16 against its spring loading to supply fluid to the circuit. When the circuit pressure rises sufficiently, the valve 16 again closes under the action of its loading spring.
Patent GB-113846-A (GB)
Title: Improvements in Dust Collectors.
IPC: D01G15/82
Filed: 1917-03-12
Abstract: 113,846. Robinson & Son, T., Robinson, C. J., and Stevenson, T. J. March 12,1917. Density separators. - Dust-laden air passes along a conduit a to a cyclone separator c, in which fibres and larger particles of dust are deposited, and is then passed by a. fan &c. d to a filter b, in which the finer remainder of the dust is removed by textile filtering-material and which has a fan e at its outlet. The fan d is preferably disposed on the top of the cyclone separator, reduces the power required by the fan e at the outlet of the filter, and is run at such a speerl as to produce a slight vacuum in the filter. According to the Provisional Specification, the fan d may, alternatively, cause a slight pressure in the filter.
Patent GB-565928-A (GB)
Title: Improvements in machines for drying cereal grain or other granular materials
IPC: F26B11/04
Filed: 1943-03-04
Abstract: 565,928. Drying cereal grain &c. PRATCHITT BROS., Ltd., and PRATCHITT, W. M. March 4, 1943, No. 3583. [Class 34 (ii)] A machine for drying cereal grain or other granular materials comprises at least three coaxial cylinders a, b, c which are connected together by bolts d and are adapted to be rotated by flanged supporting rollers f in engagement with rings e on the cylinder c. The grain is fed through a hopper i to the inner cylinder a, and passes through each cylinder in turn to a funnel j which leads it to an outlet tube k, supported on -rollers m and rotated by frictional engagement with the rings e, hot drying air or gas being supplied to the cylinders in the same direction as the grain, or in the opposite direction, by a fan o. Air outlet p is provided for the hot air, although some of the latter may be withdrawn through the tube k by the fan o. The fan o is actuated by a motor g which also rotates the rollers f through speedreduction gearing h. The machine may be mounted on a trolley to constitute a portable unit. Specification 393,293 is referred to.
Patent GB-101916-A (GB)
Title: Wave Motors.
Inventor: SANDERSON GEORGE WASHINGTON
IPC: F03B13/18
Filed: 1916-03-11
Abstract: 101,916. Sanderson, G. W. March 11, 1916. Wave energy, utilizing. - Hinged floats 30, Fig. 2, actuated by the waves are carried by a rectangular frame 1 which is guided by cross-pieces 29 running between piles 6<1>, 6<11>. The frame is kept horizontal and on the surface of the water by three sets of pulleys and ropes, one set consisting of the pulleys 33 - - 36 and a rope 37, and the other two sets consisting of ropes 11 - - 14 running over pullems 15, 20, 20<1>, 21, 18 to tanhs 16, 19 supplied with water through pipes 22, 23 and containing weights 38. Taps 26, 27 enable the water to be drawn off. The motion of the floats 30 rotates a shaft 32, Figs. 2 and 6, by means of a weighted rope 41, which is attached to a rocking lever 46 carrying a pawl 49 engaging with a ratchet-wheel 48 on the shaft. The rope 41 is kept of the right length by ratchet mechanism 50, 51, the pawl of which may be tripped by striking the stop 56.
Patent GB-1134843-A (GB)
Title: Process for the preparation of hydrocarbylhalogenosilanes
Inventor: ZOCK HENDRIK FRITS
IPC: C07F7/16
Filed: 1965-01-27
Abstract: 1,134,843. Hydrocarbyl halogenosilanes. UNILEVER Ltd. 12 Jan., 1966 [27 Jan., 1965], No. 3718/65. Heading C3S. [Also in Division C7] Hydrocarbyl halogenosilanes are obtained by reacting a hydrocarbyl halide at an elevated temperature with a contact mass containing silicon, a metal catalyst comprising silver, copper or compounds thereof, and a promoter comprising cadmium or a compound thereof. The reaction may be effected by conducting the halide over and through a bed consisting of the contact mass or the vapour may be preheated and brought into contact with the contact mass, suitably at temperatures of 150-480 C. in the case of alkyl halides and 250-600 C. in the case of aryl halides, and generally at a pressure of 0À1 to 20 kg/cm<SP>2</SP>. Products containing Si-H bonds may be obtained by incorporating hydrogen with the alkyl halide. The silicon, metal catalyst and promoter may be introduced into the contact mass in the form of a mixture of powders of the individual elements (or compounds thereof), or the promoter and catalyst may be alloyed when possible, powdered and thereafter mixed with the silicon, preferably in the form of a finely-divided powder. In the contact mass, the ratio Cu : Si is preferably between 1 : 150 and 9 :11 parts by wt. and the ratio Cd : Cu is preferably between 1 : 100 and 3 : 5 parts by weight and the mass may be stabilized before reaction by heating, e.g. at 250- 450 C. Specified hydrocarbyl halide starting materials are methyl, ethyl, propyl, vinyl, phenyl and naphthyl chlorides and methyl, ethyl and phenyl bromides and mixed hydrocarbyl halogenosilanes such as methylphenyl- and methylvinyl - dichlorosilanes may be obtained by using mixtures of organic halides such as methyl and phenyl chlorides or methyl and vinyl chlorides.
Patent GB-752804-A (GB)
Title: Watch
IPC: G04B45/00
Filed: 1954-02-09
Abstract: 752,804. Watches. TRIEBOLD, E. Feb. 9, 1954, No. 3732/54. Class 139 The pin pallet staff 4 of a watch 1, Fig. 1, projects from the decorative dial and carries a movable member 3 forming part of the decoration. The watch includes a mechanism 13, 14, 15 operable by buttons 17, 18 for arresting and releasing the balance. A sweep seconds hand may be .provided.
Patent GB-833741-A (GB)
Title: Improvements in or relating to suspension and steering means for vehicles
IPC: B62K25/24
Filed: 1956-02-07
Abstract: 833,741. Motor cycles; wheel forks; steering. BOTHWELL, P. W. Feb. 7, 1957 [Feb. 7, 1956], No. 3732/56. Classes 79(5), 136(1) and 136(3) The steering mechanism for the single front wheel of a motor vehicle comprises a non-rotating hub 41-42 mounted on a king pin 37 on an axle 35 fixed to a bracket 34 that is pivoted at either end to upper and lower links 30 and 31 that in turn are pivoted to the vehicle frame; the hub 41-42 can be pivoted about the king pin by steering rods (not shown) attached to the usual handlebars. A double set of the links 30 and 31 may be used as in Fig. 4; they may be cranked inwards if necessary and may either trail or lead the front member of the vehicle frame. The hub is formed in two parts 41 and 42 connected by bolts 43 for ease of assembly and has tapering horizontal slots 44 at either end so that it can pivot on the king pin as in Fig. 6. A wheel hub 46 and wheel 16 can rotate on bearing races 45 on the hub 41-42. The castor angle of the king pin may be adjustable by setting segment plates 55 at the ends of the axle 35 to the frame at an approriate hole 56. The wheel supporting brackets may be formed in one piece, as in Figs. 8 and 11 (not shown).
Patent GB-100979-A (GB)
Title: Steering Gears for Motor Vehicles.
Inventor: KUHN WILLIAM OSCAR
IPC: B62D1/22
Filed: 1916-03-14
Abstract: 100,979. Kuhn, W. O. March 14, 1916. Steering-g e a r. - In steering-gear of the kind in which all four wheels can be steered simultaneously, or the front and rear wheels can be steered independently, t h e hand-wheels are mounted on concentric steering-ports 16, 24 and are adapted to be locked for simultaneous steering by a pawl 36. The pawl 36 is adapted to engage recesses 37, 38 in the hubs 18, 26 and is withdrawn for independent steering by a lever 34.
Patent GB-1302208-A (GB)
IPC: C12P33/00
Filed: 1970-01-27
Abstract: 1302208 6 - Hydroxy - #<SP>1'4</SP>-steroids SCHERING AG 27 Jan 1970 [27 Jan 1969] 3920/70 Headings C2C and C2U 6-Hydroxy-3-keto-#<SP>1,4</SP>-steriods of the pregnane, testololactone and androstane series are prepared by fermentation of ring A saturated 3#-hydroxy- or 3#-acyloxy-5,6-epoxy steroids with bacteria of the genus Bacillus, of the genus Mycobacterium or of the genus Arthrobacter or with enzymes of such bacteria. Suitable species are B. lentus, B. sphaericus, M. phlei, M. smegmatis and A. simplex. Novel products are 6α-hydroxy- 1 -dehydro-testololactone; 6α,15# - dihydroxy - 16α - methyl- #<SP>1</SP>'<SP>4</SP> - pregnadiene - 3,11,20 - trione; 6α,21- dihydroxy - 16α - methyl - #<SP>1</SP>'<SP>4</SP> - pregnadiene- 3,20 - dione; 6α,21 - dihydroxy - #<SP>1,4</SP> - pregnadiene - 3,20 - dione; 6α - hydroxy - 16α - methyl- #<SP>1,4</SP> - pregnadiene - 3,20 - dione; 6α,17α - dihydroxy - #<SP>1,4 </SP>- pregnadiene - 3,20 - dione; 6α,11#,21 - trihydroxy - #<SP>1</SP>'<SP>4</SP> - pregnadiene- 3,20 - dione; 6α,11#,21 - trihydroxy - 16α- methyl - #<SP>1</SP>'<SP>4</SP> - pregnadiene - 3,20 - dione; 6α - hydroxy - 16α,17α - epoxy - #<SP>1,4</SP> - pregnadiene - 3,20 - dione; and 6α,21 - dihydroxy- 16,17α - epoxy - #<SP>1</SP>'<SP>4</SP> - pregnadiene - 3,20 - dione.
Patent GB-445602-A (GB)
Title: Improvements in pumps, such for example as scavenging pumps of internal combustion engines of the two-stroke cycle type
IPC: F02B33/00
Filed: 1934-07-12
Abstract: 445,602. Air - compressor valves. MACKENZIE, D. G., 17, Northbrook Road, Ilford, London. July 12, 1934, No. 3982. Divided out of 424,256, [Group XXVII]. [Class 8 (i)] [See also Group XXVII] Admission ports in the head of a pump piston are controlled by an apertured valve plate actuated from the connecting-rod by which the piston is connected to a crank-shaft. The Figure shows a pump applied to an internalcombustion engine. The lower part of the power cylinder 2 of a two-stroke cycle engine which may be of the opposed-piston type is surrounded by a rectangular air pump 4 having admission slots 9 in the piston 5, controlled by slotted plates 10 slidably mounted on the piston. Air enters the pump from a chamber 6 disposed below the pump 4 and separated from the crank chamber 7 by a partition 8. The plates 10 are actuated through links 14 and rods 12 connected to auxiliary crank-shafts 13.
Patent GB-1366135-A (GB)
Title: Circular magnetic domain devices
IPC: G11C19/08
Filed: 1972-01-27
Abstract: 1366135 Magnetic storage devices PLESSEY CO Ltd 27 Jan 1972 [4 Feb 1971] 3982/71 Heading H3B A circular magnetic domain device includes a magnetic member having at least one easy magnetization direction substantially parallel to a surface thereof, the material of the magnetic member being such that a magnetic permeable pattern can be formed in the surface, and such that deleterious chemical reactions are minimized; a first magnetically permeable pattern formed in the surface of the magnetic member; a layer of uniaxial magnetic material formed on or in the surface of the magnetic member, the layer material having a crystal structure which is compatible with the material of the magnetic member and having a single easy magnetization direction substantially normal to the surface; and an electrically conductive pattern formed on the upper surface of the uniaxial magnetic layer. Both layers may have a garnet structure of formula R 3 Fe 5-x M x O 12  where x is 0-1À8, R is rare earth ion and M is non-magnetic ion. Yttrium, gallium iron garnets are preferred. During propagation it can be ensured that the circular magnetic domain walls are maintained normal to the major surface of the uniaxial magnetic layer.
Patent GB-389786-A (GB)
Title: Improvements in bolts and nuts having nut locks
IPC: F16B39/10
Filed: 1933-02-09
Abstract: 389,786. Locking nuts. SECURITASSCHRAUBE GES., 52, G÷thestrasse, Munich, Germany. Feb. 9, 1933, No. 4010. Convention date, July 28, 1932. [Class 89 (i).] A device for locking nuts comprises an internally ribbed ring 2 designed to slide on the externally-ribbed end 1 of the screw and further provided with square teeth 7 which take between complementary recesses 5 in the nut 3. The ring 2 and the nut 3 are secured against axial movement by a spring ring 6 which, when the ring and nut are in full engagement, snaps into circumferential recesses 7 in the ring, the teeth 2 of which are chamfered at their ends 8 to take under and stress the spring ring.
Patent GB-688913-A (GB)
Title: Improvements in or relating to electric snap-action switches
IPC: H01H37/46
Filed: 1950-02-16
Abstract: 688,913. Thermal switches. GENERAL ELECTRIC CO., Ltd., HUMPHREY, R., and HUNT, M. H. Feb. 16, 1951 [Feb. 16, 1950], No. 4019/50. Class 38 (v) In a snap-action switch, a member 10 of springy material has three limbs 10a, 10b, 10c joined together at one end 10d, the other ends of the limbs all pivoting about fixed points and alternate limbs being under tension and compression. In the form shown the outer limbs are in compression and pivot about points 11 while the centre limb is in tension, is T- shaped and pivots about points 13. Pressure applied above or below the part 10e of the centre limb carries the parts past a dead-centre position causing the part 10d which carries a contact and is movable between two fixed stops or contacts to snap into its other position. The arrangement may provide for the parts to return to their original positions when pressure is removed from the part 10e. Alternatively, pressure may have to be applied in the opposite direction to the part 10e. The invention is applicable to a thermal switch of the expanding rod and tube type, Figs. 2, 3 (not shown).
Patent GB-1291642-A (GB)
Title: PURIFICATION OF p-AMINOPHENOL
Inventor: REID KENNETH CATHRO
IPC: C07C213/02
Filed: 1970-01-28
Abstract: 1291642 Purification of p-aminophenol MACFARLAN SMITH Ltd 4 Jan 1971 [28 Jan 1970] 4021/70 Heading C2C Crude p-aminophenol is purified by contacting the crude phenol in an aqueous phase with a non-oxygenate solvent, which is immiscible with water and selectively dissolves the impurities, and recovering a p-aminophenol of improved purity. The non-oxygenated solvent is preferably chloroform, methylene chloride or 1,2-dichloroethane.
Patent GB-1028371-A (GB)
Title: Improvements in or relating to electric amplifiers
Inventor: SIGOURNAY NORMAN LOMAS
IPC: G05D3/14
Filed: 1962-02-02
Abstract: 1,028,371. Control of A.C. motors. SMITHS INDUSTRIES Ltd. Feb. 4, 1963 [Feb. 2, 1962], No. 4106/62. Heading H2J. The control phase winding of a two-phase induction servo motor is connected to terminals 11, the motor being controlled in accordance with signals applied to input terminals 16. In the absence of any signal, transistors 21-24 are fully conductive, transistors 1-4 being cut off under this condition. When a train of pulses of alternating polarity is applied to terminals 16, the two halves of the input stage 21-24 are cut off alternately due to a positive pulse being applied to the base of either transistor 21 or transistor 23, provided that the pulse amplitude is sufficient to overcome the negative bias from rectifier 19. When transistor 21 is cut off, for example, transistor 22 is also cut off and transistors 1, 2 are rendered conductive to energize one half of winding 6. A train of widthmodulated pulses applied to terminals 16 thus causes output current pulses of alternating polarity to flow in the secondary winding 8 of the output transformer. The speed of the motor is controlled by varying the pulse-width, and the direction of rotation by reversing the polarity of the pulses. Smoothing capacitor 9 is connected in series with inductance 10. If no signal voltage is applied across terminals 32, transistors 33, 34 are equally conductive so that equal currents flow in the two pairs of control windings 38, 39, and 41, 42, of magnetic amplifier 37 which then has no output current. When signal currents produced by sources 30, 31 are unequal, a voltage is developed across terminal 32 whereby one of the transistors 33, 34 conducts more than the other, the output pulses applied to terminals 16 being widthmodulated in dependence upon the magnitude of the voltage across terminals 32 and the phase of these pulses being determined by the sense of that voltage. The source 30 may be a demand signal source and the source 31 a feedback source driven by the motor. Such feedback source may be a potentiometer for representing the angular position of the motor shaft or a tachometer generator.
Patent GB-736436-A (GB)
Title: Chlorinating reactions
IPC: C07C17/00
Filed: 1953-02-13
Abstract: Phthalocyanines are chlorinated at above 200 DEG  C. using as chlorinating agent and as solvent octachlorcyclopentene or decachlorindane, which are converted respectively to hexachlorcyclopentadiene or perchlorindene respectively.  A chlorination catalyst, such as ferric chloride may be present. The hexachlorcyclopentadiene and perchloroindene may be reconverted by addition of chlorine either during chlorination of the phthalocyanine or subsequently.  In examples: (1) copper phthalocyanine is melted with perchloroindane and ferric chloride, and the perchlorindane is regenerated with chlorine either simultaneously or subsequently. Also, (2) copper phthalocyanine and metal-free phthalocyanine are melted with ferric chloride and octachlorcyclopentene, with simultaneous or subsequent regeneration of the latter.ALSO:Octachlorcyclopentene containing about 15 per cent of trichlorethylheptachlorcyclopentene is obtained by heating carbon tetrachloride with trichlorethylene in presence of aluminium chloride.
Patent GB-585320-A (GB)
Title: Improvements in or relating to tubular electric lamp fittings
IPC: F21S8/06
Filed: 1945-02-21
Abstract: 585,320. Tubular electric lamp fittings. LOWE, K. C. Feb. 21, 1945, No. 4337. [Class 75 (iv)] The choke, condenser, starting switch or other electric auxiliary gear for a tubular electric lamp are mounted in casings 5 on. a channelsectioned member 3 which rests on a projection 9 at one end of a trough-shaped reflector 1 and is removably secured at the opposite end by a screw 8. The lamp holder fittings are mounted in brackets 4 depending from the ends of the member 3. The bottom 6 of the member 3 forms a reflecting surface continuing the sides of the reflector 1. The reflector is hung from the ceiling by rods. The mains plug is inserted through an aperture in the reflector into a socket 10 mounted on the casing 5 and must be removed before the member 3 can be detached from the reflector.
Patent GB-179997-A (GB)
Title: Improvements in means for firing and propelling rockets
IPC: F42B12/68
Filed: 1921-02-07
Abstract: 179,997. Schermuly, A. W. L., and Schermuly, C. D. Feb. 7, 1921. Ordnance, war-rocket; design.-A pistol such as is used for firing Very lights is converted into a gun for firing line-carrying rockets by the addition of an extra length of barrel 5, Fig. 1, sufficient to receive the tail end of the rocket R in advance of a blank cartridge 4<b>. The fore part of the barrel 5 may be made detachable and various fore parts of different diameters such as 5a, Fig. 2, and 5b, Fig. 3, may be provided for use according to the size of the rocket to be fired. The gun is intended especially for the rocket described in Specification] 179,495, [Class 9 (i), Ammunition &c.]. A handle 8 with a screen 9 is provided beneath the barrel 5; it is mounted on a rod 8<b> between two sets of discs alternately of metal or wood 8<c> and rubber 8<d>. The hammer 10 is also covered by a guard 11. The gun may be attached by a clamp or swivel to the box containing the line, and may rest on the rope from which the said box is suspended in the usual manner.
Patent GB-579919-A (GB)
Title: Improvements in and relating to fuel injector pump mechanisms for compression ignition engines
IPC: F02D1/00
Filed: 1945-02-22
Abstract: 579,919. Regulator mechanism for fuel-injector pumps. EATON A. H. Feb. 22, 1945, No. 4434 [Class 7 (iii)] [Also in Groups XXVI and XXVIII] In regulating mechanism for a fuel injection pump for compression ignition engines, the position of the plungers is controlled by a pawl or abutment 17 whose setting is normally governed by a set screw 14 carrying a plunger 16. These are carried on a member 10 which may be moved aside so that the plunger clears the pawl, enabling this to move into an engine stopping position. The member 10 moves against a spring 23 whereby the set screw &c. is returned to the normal position.
Patent GB-728118-A (GB)
Title: Beds
Inventor: FAVER ERNEST VICTOR
IPC: A47C19/12
Filed: 1954-02-15
Abstract: 728,118. Folding beds. STEEL & CO., Ltd., W. May 10, 1954 [Feb. 15, 1954], No. 4445/54. Classes 52 (2) and 52 (3). The frame of a bed is in five sections 4, 1, 7, 9, 11 hinged together, the section 1 has a base frame 2 with castors 16 and the three sections 7, 9, 11 at the foot end can be folded up as shown in Fig. 1 with the sections 7, 11 substantially vertical and in spaced relation, the head section 4 being then swung up so that the head board 6 covers the structure and serves as a table top. A drape can be secured in a groove 24 around the board 6 and the spaces between the folded sections can accommodate the bedding. Hinged legs 17 automatically unfolded by links 22 are provided.