baber/WOPTO huggingface dataset:
Patent GB-570422-A (GB)
Title: Improvements in or relating to pick-up devices associated with baling machinery
IPC: A01F15/10
Filed: 1941-11-13
Abstract: 570,422. Pick-up devices for baling presses. CASE CO., J. I. Nov. 13, 1941, No. 14640. Convention date, April 19. [Class 6 (iii)] Hay or the like is picked up by radial prongs 11 projecting from a rotary cage, and removed therefrom by a stripper 29 the distance of which from the cage progressively increases after the picking up; the hay, &c., is transferred to a belt 6 and delivered to a transverse conveyor 14 leading to a baling press. The cage consists of inwardly flanged end plates mounted on a shaft 15, connecting rods 22 parallel to the shaft, and spring prongs 11 encircling and fastened to the rods in pairs. The strippers 29 consist of angle-section members ; each is secured below and above the cage to members 30, 31, 32 of the pick-up frame. The strippers pass between the prongs and gradually recede from the periphery of the cage until the prongs disappear at their uppermost point. The frame 12 supporting the conveyor 61 is pivotally linked to the baling press frame 59 and has the pick-up mechanism pivoted to its lower end 39. The tension of the conveyor 61 may be adjusted, or removed, the lower bearing being mounted in spring- pressed guides and movable by connection to a hand-wheel associated with a ratchet and pawl. The pick-up is adjusted by rotating the pivot 37. A tension spring 90 connected to a crank or the like 94 opposes the weight of the pick-up, which is lowered into operative position from the platform B through the medium of a pedal 111, bell-crank 107 and a compression spring 96. The pick-up cage is rotated from the ground wheels. W, by a drive consisting of chain and sprocket gearing and a cardan shaft. The conveyor 12, however, is power driven from the engine E through the belt 123. A hold-down unit to counteract wind and like effects may be fitted, consisting of side brackets, cross-bars and longitudinally extending strips.
Patent GB-283404-A (GB)
Title: Improvements in and relating to electrical pole finders
IPC: G01R19/14
Filed: 1927-06-01
Abstract: 283,404. Lyall, J. G. June 1, 1927. Current direction indicators. - A Pole-finder comprises a glass or other transparent tube a closed at the ends with rubber or other plugs b, b<1> through which project adjustable electrodes in the form of rods c. c<1>, which are provided with terminal screws d and blade terminals f, f<1> pivoted to tubular metal caps g, g<1>. The tube a is filled with a solution of sodium sulphate, phenolphthalein, and water, or other solution which changes colour at one electrode on the passage of a current.
Patent GB-1157954-A (GB)
Title: Control System for a Ship
Inventor: HOLDEN EDWARD JOHN
IPC: G05D1/02
Filed: 1965-04-07
Abstract: 1,157,954. Control systems. EXPRESS TRANSFORMERS & CONTROLS Ltd. July 6, 1966 [April 7, 1965], No. 14781/65. Heading G1N. [Also in Division G3] The steering motor of a ship is energized to operate in one direction or the other by electronic switch means controlled by unbalance between a rudder feedback potentiometer and a potentiometer in a portable remote control unit connected through a wandering lead. In Fig. 1, operation in one sense or the other of a remote potentiometer 11 energized from a stabilized direct voltage supply 17 unbalances a bridge circuit including a pair of transistors 21, 22 so that a voltage of corresponding polarity is produced across resistors 26, 27 to render one or other of silicon controlled rectifiers 28, 29 conductive. A corresponding relay A or B then operates to cause a rudder servomotor 19 to run in a direction corresponding to that in which potentiometer 11 was moved, until a potentiometer 18 adjusted by servomotor 19 rebalances the bridge circuit. The supply to relays A, B, which is controlled by silicon controlled rectifiers 28, 29, is derived from a square wave generator including transistors 34, 35. Sudden voltage changes due to cable breakage are effective through a condenser C to render a silicon controlled rectifier 40 conductive to de-energize both relays A, B. Modifications are described in which the servomotor is supplied from an AC or DC source through silicon controlled rectifiers instead of relay contacts. For automatically maintaining the ship on a desired course, arrangements are described in which signals from an AC pick-off operated by a gyro compass are supplied to one of the transistors 21, 22 and signals from an AC potentiometer setting the desired course are applied to the other transistor. One of these arrangements involves a transistor amplifier having both positive and negative feedback.
Patent GB-929511-A (GB)
Title: Improvements in or relating to door-operating appliances
Inventor: ROLLITT JOHN
IPC: E05F3/08
Filed: 1961-04-25
Abstract: 929,511. Door closers. ARMSTRONG PATENTS CO. Ltd. April 10, 1962 [April 25, 1961], No. 14838/61. Class 65 (1). [Also in Groups XXVI and XXXII] In a spring door closer having a vane type hydraulic check, wherein a vane 28 fitted on the rotatable closer shaft 16 co-operates with a stationary abutment 30 to divide the hydraulic chamber 26 into two compartments 32, 34 interconnected by valve-controlled passages, the hydraulic seals 68, 72 between the relatively movable surfaces are each exposed at a position remote from the respective surfaces to the hydraulic pressure prevailing in the compartment 32 which increases in size as the door is opening so that the seals move towards and away from the surfaces as the pressure increases and decreases. The seals consist of strips of rubber or like material of rectangular section slidable radially in slots 66, 70 connected to the compartment 32 by ports 74, 76. During the opening stroke fluid flows from the compartment 34 to the compartment 32 through a non-return valve 62 in the vane. The closing speed is controlled by an adjustable needle valve 60 (not shown) arranged coaxially in the hollow interior of the shaft 16.
Patent GB-1022769-A (GB)
Title: Improvements in or relating to circuit arrangements for the compatible monophonic and stereophonic reproduction of signals
IPC: H03D1/22
Filed: 1963-04-16
Abstract: 1,022,769. Stereophonic radio receiving systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 16, 1963 [April 19, 1962], No. 14851/63. Heading H4L. A circuit arrangement for the compatible monophonic and stereophonic reproduction of signals in the form of a sum signal A + B and a difference signal A - B, which modulates a subcarrier frequency with suppression of the subcarrier, and a pilot signal at half the subcarrier frequency; comprising an information channel and a pilot channel which includes a frequency-doubler for producing a sub-carrier oscillation; is characterized in that each of the reproduction channels is connected to the information channel through an electronic switch which passes the information signals and is balanced for the switching signal, both electronic switches being controlled by the sub-carrier oscillation produced in the pilot channel, and the pilot channel includes a threshold device by which the channel is cut off at an input level below the threshold of the device. In Fig. 1 received F.M. signals pass through an I.F. stage 2 and a frequency discriminator to produce an output at resistance 10. Information signals pass to the information channel 14 whilst the pilot signal is selected by a pilot filter 17, amplified in valve 18 and passed to the frequency doubling circuit 16. The valve 16 has included in its cathode circuit a gas discharge tube 50 which strikes if a pilot signal is present, thereby forming an automatic switch for switching from monophonic to stereophonic operation and also giving a visible indication of the mode of operation. The output of the frequency doubling circuit passes to a transformer and the information channel is connected to a centre tap on the secondary winding 40 of the transformer. The winding 40 is connected to an electronic switch 35 comprising four rectifiers 36-39 connected in a bridge circuit so that the switch is capable of passing the information signals and is balanced for the switching signal. Resistances 43-46 are included in the bridge to prevent the winding 40 from being heavily shunted, and outputs are taken across large resistances (about 1 megohm) 41 and 42. These outputs are amplified by valves 25 and 26 respectively and fed to loud-speakers 27 and 28. The cathodes of valves 25 and 26 may be connected by a variable resistance 49 to reduce cross-talk. As an alternative the information channel may be connected through series resistors to electronic switches incorporating transistors arranged as parallel impedances in the reproduction channels. The valves in the circuit may be replaced by transistors.
Patent GB-784572-A (GB)
Title: Improvements in or relating to magnetic drum recorder reading or writing heads
Inventor: BAKER GEORGE THOMAS
IPC: G11B5/10
Filed: 1954-03-29
Abstract: 784,572. Magnetic recorder reading or writing heads. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. March 17, 1955 [March 29, 1954], No. 14959/56. Divided out of 784,571, [Group XXXV]. Class 40 (2). A method of making a magnetic drum recorder reading or writing head comprises assembling an inductive coil 50 on a straight core 53 of magnetic strip material, e.g. transformer lamination material, bending round the ends of the strip, Fig. 3, so that they converge at an acute angle and the extremities are parallel to each other, inserting the coil and core in a hole 57 in a non-magnetic former 54, Fig. 4, with the parallel extremities of the core located in a slot 60 extending from the hole 57 at right angles to the coil axis, embedding the coil anp core in a casting resin by filling the hole therewith and hardening the resin, and then grinding away, Fig. 5, the former 54 resin and core 53 at the end of the slot 60 until the opposite ends of the core are separated by an appropriate gap. The coil 50 is wound with a decreasing number of turns per layer and the core 53 after being placed in the hole 57 is located therein by its ends being pulled through the slot 60 and then turned over (see Fig. 5). The resin is cast in a number of assemblies at the same time, Fig. 6, and a packing piece 63 fills the remainder of the slot 60 not occupied by the core ends. The grinding operation removes material to line Y-Y of Fig. 5 and further material to line XX is removed by a hand honing operation, the exact amount being determined by measuring the air gap with a microscope. Screws 58, 59 co-operating with oblique slots 55, 56 in the former 54 provide adjustment in the radial and circumferential directions respectively of the head with respect to the drum, not shown.
Patent GB-329826-A (GB)
Title: Improvements in springing and steering arrangements for motor cycles
IPC: B62K25/00
Filed: 1929-05-14
Abstract: 329,826. Hammond, E. V. May 14, 1929. Springs, a r r a n g ement of; guiding vertical play. - In a spring mounting for the single steering wheels of motor-cycles &c., a spindle i<1> rigid with the wheel i is mounted by ball &c. bearings k in a bearing member l provided with a plunger l<1>, adapted to slide in a tubular member a at the side of the wheel under the control of a spring m, the member a being secured by screws h to a crown b on a steering column c. Relative rotation is prevented by studs o engaging slots n in the member a.
Patent GB-564259-A (GB)
Title: A resilient product adapted to serve as a substitute for sponge rubber, and method of making same
Filed: 1942-10-29
Abstract: A felt core is enveloped with sponge rubber which is moulded thereon and bonds the surface fibres of the felt, the product being made by assembling pieces of rubber which incorporate a blowing agent, e.g. ammonium carbonate, about the felt, either within a mould, or externally and then placing the assemblage in the mould and vulcanizing &c.  The felt may comprise wool, cotton linters, or needle-loom felt, and the product may have an impervious skin. Specification 559,054 is referred to.
Patent GB-1033878-A (GB)
Title: Aerofoil type louver blade
IPC: E06B9/386
Filed: 1965-04-09
Abstract: 1,033,878. Louvre slats. E. C. HALLOCK. April 9, 1965 [Jan. 14, 1965], No. 15218/65. Heading E1J. An aerofoil type louvre blade for sunshades, screens, &c., comprises a central H-section beam 12 and two elongated U-shaped blade sections 18, 20, the free edges of which are formed with inwardly projecting lips 31 located in recesses in the beam by bridging members 13 of generally T-section the flanges of which hold the blade flanges 18, 20 against the beam by means of abutments on the web interlocking with abutments 39a on the flanges of the H-section beam, so that when the legs of the bridging members web snap behind the abutments 39a pressure is exerted by the flanges of the bridging member on the blade sections 18, 20.
Patent GB-843503-A (GB)
Title: A process for simultaneously removing naphthalene and water vapour from coke oven gas
IPC: B01D47/06
Filed: 1957-05-14
Abstract: 843,503. Purifying gases; contacting gases with liquids. STAMICARBON N.V. May 14, 1957 [May 18, 1956], No. 15328/57. Class 55 (2). [Also in Group XIII] Coke oven gas is dried and freed from naphthalene by scrubbing the gas with an ethylene glycol, e.g. tri-ethylene glycol. The used scrubbing liquid may be regenerated by extracting the naphthalene with a suitable solvent, e.g. benzene or toluene, but preferably xylene, and distilling off the water. Apparatus for carrying out the process comprises a scrubber 1, reservoirs 5 and 6, receiving tanks 7 and 8 and a distillation column 9. The scrubber is supplied with regenerated washing liquid through line 13 and cooler 14 and is subdivided into a number of sections each supplied with a pump e for recirculating washing liquid within the section through a cooler f. Used washing liquid is withdrawn from the base of the scrubber by line 4 and mixed with a solvent from section 7a of the tank 7 in the vessel 5. The mixture of washing liquid and solvent is allowed to separate in tank 6 and an upper layer containing solvent and naphthalene is passed to section 7c of the tank 7 while the lower layer comprising washing liquid and water passes to compartment 7b. Washing liquid withdrawn from compartment 7b is heated in a heat-exchanger 8 and freed from water in the distillation column 9 and returned to the scrubber 1 via the heat-exchanger 8 and a cooler 14. Solvent collecting in compartment 7c is periodically withdrawn and distilled to provide fresh solvent for compartments 7a.
Patent GB-1298106-A (GB)
Title: Improvements in sewing machines
IPC: D05B57/02
Filed: 1970-04-01
Abstract: 1298106 Sewing-machine UNION SPECIAL MACHINE CO 1 April 1970 [1 April 1969] 15328/70 Heading D1G Presser foot, feeding foot. A sewing-machine having a work supporting surface (10a, Fig. 1 not shown) along which multi-layered work pieces may be advanced, has work retaining and advancing means comprising a presser foot 48d engageable with the top surface of the work to urge the work against the surface, a four motion feed foot 50a engaging the top surface of the work near the presser foot, a drive shaft 36 above and parallel with the surface, the shaft having eccentric surfaces 36a, 51 on the shaft, the surface 36a causing lifting of the presser foot while the surface 51 lowers, substantially simultaneously, the feed foot on to the work and imparts a longitudinal movement to the foot to advance the work. The presser foot and feed foot are provided at the ends of bars 48, 50 respectively, the other ends of the bars engaging the eccentrics 36a 51, the former by way of a block 49 and jaws 48c on the bar 48. Bar 48 pivots on a pin 55 which carries a block 50d slidably accommodated at 50c in bar 50 to permit longitudinal movement of that bar. Pin 55 is carried in a block 41 engaging leaf spring 42 and slidably received in a housing 40 attached to the machine frame. A spring biassed presser bar end 45a engages the end of spring 42 and may be raised by a knee lever or pedal (not shown) linked to the presser bar (45) by mechanism 60-63, (Fig. 2). The shaft 36 is driven from a main bed shaft by a toothed belt and pulleys disposed either near the stitching position (Fig. 1 not shown) or adjacent the column of the machine. Eccentric 52 may be replaced by another of suitable throw to match the stitch length motion selected from the under feed dog. Feed dog. (Fig. 4 not shown). The feed dog (27) is connected to a feed bar (28) having one end connected (at 29) to a feed advance rocker (30) driven from an adjustable eccentric (33, Fig. 2 not shown). Feed lift is imparted to the bar by a pitman (34) embracing an eccentric (35) on the bed shaft (14). Looper. The machine, which forms a two thread chain stitch, employs a looper (22, Figs. 1 and 4 not shown) rockably mounted on a sleeve (23a) mounted on a shaft (23) to rock about the shaft for needle avoiding movement and to rock with respect to the sleeve to impart the loop seizing and shedding motions.
Patent GB-819920-A (GB)
Title: Improved calculating device
IPC: A63F1/18
Filed: 1956-05-17
Abstract: 819,920. Games scorers. GOODSON, A. E. May 14, 1957 [May 17, 1956], No. 15397/56 Class 132(2) [Also in Group XIX] A tabular calculator is, in one form, specially adapted for bridge scoring and comprises three coaxial tubular casing members 36, 37, 38 within which are rotatably mounted inner cyclmders 47, 59, 53 respectively, the latter bearing tables of scoring values visible through windows 41, 46, 45 and being rotatable by sleeve portions 51, 61, 56 to reveal the desired scores. The parts are carried on a writing instrument 62. The cylinder 47 is formed with a helical groove by which it positions a cursor 49 having a pointer visible through a window 39 and moving against a scale of numbers of tricks. When the cursor is set in accordance with the number of tricks, the cylinder is further rotated through a part of a revolution to set the appropriate marking "Made", "Doubled" or "Redoubled" on the sleeve 51 against an index whereupon the corresponding number of points is visible under the appropriate one of three suit markings on the cursor. The section 38, 53 of the device is generally similar but computes the points arising from over-tricks and, by means of an additional cursor, Fig. 9, from undertricks. The central section 37, 59 is a simple indicator for extra points. A second embodiment of the calculator (see Group XIX) is adapted for currency conversion.
Patent GB-998606-A (GB)
Title: Preparation of cyclic sulphides
IPC: C07D331/02
Filed: 1962-04-24
Abstract: The compound <FORM:0998606/C2/1> is prepared by pyrolysing a compound of for mula RCOACH2CH(R1)BH in which R1 in which R1 is H, -CH2OH or a C1-C8 alkyl, A and B respec tively are -O- and -S- or -S- and -O-, and R is a C1-C8 alkoxy group, an aryloxy group or an arylamino group; and the com pound <FORM:0998606/C2/2> is prepared by pyrolysing HOCH2CH2CH2S-CO-OR or HS-CH2-CH2-CH2-O-CO-OR1 in which R1 is an alkyl or an aryl group.  For example ethylene sulphide may be prepared by pyrolysing n-hexyl, ethyl or phenyl 2-hydroxy ethylthiol carbonate or 2-mercaptoethylcarbonate; or by pyrolysing 2-mercaptoethyl phenyl carbamate or 2-hydroxyethyl phenyl thiol carbamate; methylethylene sulphide may be prepared by pyrolysing ethyl-2 mercapto-3-carbonate or 2-hydroxypropyl thiol carbonate; and hydroxymethylethylene sulphide by pyrolysing ethyl-2-mercapto-3-hydroxypropyl carbonate or 2,3-dihydroxy propyl thiolcarbonate.  Trimethylene sulphide may be prepared, for example, by heating ethyl-3-hydroxypropyl thiol carbonate.  The pyroly sis is preferably carried out in the presence of basic catalyst, for example, an alkali metal hydroxide, sodium methoxide, sodium ethoxide or a tertiary amine.  The starting materials are prepared as follows:-(a) compounds of formula RCOSCH2CH(R1)OH in which R is C1-C8 alkoxy or aryloxy and R1 is H, hydroxymethyl or C1-C8 alkyl are prepared by reacting an alkyl or aryl chloroformate with 2-mercapto ethanols, such as 2-mercaptoethanol, 3-mercap to 1,2 - propanediol, 1 - mercapto - 2 - propanol, 1 - mercapto - 2 - butanol, 1 - mercapto - 2 1 - mercapto - 2 - heptanol or 1 - mercapto - 2 - decanol in the presence of a base, e.g. sodium hydroxide, potassium hy droxide or lithium hydroxide; (b) compounds of the formula RCOSCH2CH(R1)OH, in which R is acylamino and R1 is hydrogen, hydroxy methyl or C1-C8 alkyl are prepared by the base catalysed reaction of an aryl isocyanate, e.g. phenyl or tolyl isocyanate, with a 2-mercapto ethanol as exemplified above; (c) compounds of formula RCOOCH2CH(R1)SH, in which R is C1-C8 alkoxy or aryloxy and R1 is hydrogen, hydroxymethyl or C1-C8 alkyl are prepared by isomerization of the corresponding 2-hydroxy ethyl thiocarbonates prepared as in (a) above, by distilling under vacuum in the presence of uranyl acetate; and (d) the compounds of formula RCOOCH2CH(R1)SH, in which R is arylamino and R1 is hydrogen, hydroxymethyl or C1-C8 alkyl, are prepared by the non catalysed reaction of an arylisocyanate with 2-mercaptoethanols as specified above.
Patent GB-956359-A (GB)
Title: Improved image projection
IPC: G02B1/00
Filed: 1960-05-03
Abstract: 956,359. Projection systems. RANKXEROX Ltd. May 3,1960 [May 25, 1959], No. 15528/60. Heading G2J. An episcope-type projection system includes a converging lens placed closely adjacent, and coextensive with, the object surface. As shown in Fig. 3, the object 12 which is in the form of a specularly reflecting surface bearing a light-scattering pattern is imaged at 18 by a shielded projection lens 17. Lens 19 receives divergent light from a relatively small condenser lens 11 (cf. Fig. 1) and in conjunction with the latter images the light source 16 in the projection lens 17. Otherwise, as in Fig. 1, lens 11 would have to produce convergent light and therefore have greater dimensions. The small size of condenser lens 11 allows of several independent projection systems being used simultaneously with the common object 12 and lens 19.
Patent GB-483430-A (GB)
Title: A process for the production of albuminous solutions resembling white of egg
IPC: A23J3/10
Filed: 1937-06-04
Abstract: Albuminous solutions having properties similar to egg-albumen are made by adding about 0,3 per cent of a water-soluble calcium or magnesium salt of a strong acid to a concentrated solution of casein such as concentrated skim-milk or an aqueous extract of albuminous seeds.  Preferably calcium or magnesium chloride is employed as the salt, but water-soluble phosphates or other water-soluble salts of strong acids may be used.  Examples describe the production of the albumen solutions from concentrated skim milk and de-oiled soya bean extract.