baber/WOPTO huggingface dataset:
Patent GB-656289-A (GB)
Title: Improvements in or relating to syringes
IPC: A61M5/32
Filed: 1948-11-03
Abstract: 656.289. Hypodermic syringes. LILLY & CO., E. Nov. 3, 1948, No. 28613. Convention date, Nov. 24, 1947. [Class 81 (ii)] A hypodermic syringe, having a barrel 4 serving as a medicament container and a needle 8 integral therewith, is provided with a sheath 18 which normally encloses and protects the needle, but when the syringe is required for use the sheath is removed and attached to the plunger 12 so as to form an actuating rod. The connection may be by screw or bayonet catch. The sheath carries a plug 20, of rubber or cork, into which the needle is pressed so as to seal it during storage. In a modification the extension of the barrel 4, which carries the needle, may have an enlarged bore at its end nearer the plunger, see Fig. 6 (not shown), so that if the syringe is used for aspirating the withdrawn blood may be clearly seen.
Patent GB-426568-A (GB)
Title: Lift position indicators
IPC: B66B3/02
Filed: 1933-10-16
Abstract: 426,568. Position-indicators for lifts. MARRYAT & SCOTT, Ltd., 75, Clerkenwell Road, London, and SCOTT, M. D., Denholme, Windmill Hill, Enfield, Middlesex. Oct. 16, 1933, No. 28621. [Class 78 (ii)] A lift indicator comprises a bare resistance wire 2 connected to the cage 1 at one end and passing over a pulley 4 at the top or bottom of the lift shaft. The portion 2<1> of bhe wire 2 and the pulley 4 are in the circuit of a plurality of voltmeters or ammeters 6, 7, 8, an adjustable resistance 10, and a trailing wire 9 hanging from the cage. The source of current may be an accumulator for D.C. or a step-down transformer 11 for A.C. main supply. The meters 6, 7, 8, connected in parallel or in series may have adjustable zero marks and be mounted each in a panel with calling or operating switch on each floor. The wire 2 may be passed over pulleys at top and bottom of the shaft, and be provided with a tensioning spring 5.
Patent GB-507621-A (GB)
Title: Improved mode of and apparatus for constructing and maintaining roads
IPC: E01C19/10
Filed: 1938-10-03
Abstract: 507,621. Road-making machines. CROMB, A. E. Oct. 3, 1938, No. 28694. (Class 107] A road-surfacing machine is supported, when in use, by side runners 9 and is provided with means, such as a blade 13, for levelling and spreading aggregate which has been deposited on the road surface, with means for treating the levelled aggregate with a binder, and with devices for mixing the aggregate with the binder during a single passage of the machine over the area under treatment. The levelling blade 13 of the machine shown is adjustable vertically and is arranged in front of two spraying devices 16, 17, which are supplied with tar or bitumen either from the vehicle which drags the machine along the road surface, or from drums 12 mounted upon the machine. The sprayed material is mixed in situ by rotary stirrers 18 driven by a motor 10. Three independently operable gates are provided at the rear of the machine. The two side gates 20 lead to screeding boxes which are bounded by side plates 19, hinged to the runner 9. and articulated plates 28, 29, connected to the centre gate 22. The boxes can be swung outwardly and inwardly about their front pivoted connections by links operated by handwheels 27. The machine is provided with vertically adjustable wheels 40, 41, which are lowered in to contact with the ground for transport purposes. In a modification, the machine is self-propelled and is provided with front and rear sets of levelling blades adapted to spread the aggregate over the road surface.
Patent GB-1386627-A (GB)
Title: Phosphate compositions
IPC: A21D2/02
Filed: 1972-06-20
Abstract: 1386627 Bakery component MONSANTO CO 20 June 1972 [21 June 1971] 28767/72 Heading A2B [Also in Division C1]
Patent GB-536764-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G47/48
Filed: 1939-10-26
Abstract: 536,764. Conveyers. KING, Ltd., G. W., and KING, D. M. Oct. 26, 1939, No. 28772. [Class 78 (i)] Means for tipping the loadcarriers of endless conveyers at any desired point to deliver the load comprises pre-set selector mechanism on the carriers adapted to co-operate with other mechanism at the delivery-points so as to close an electric circuit when the selected delivery station is reached and thus withdraw locking-means which prevent tipping of the carrier by gravity. In the illustrated form, load-carriers of the form shown in Fig. 3 alternate with selector mechanisms as shown in Fig. 8, as links of a driven endless-chain and are supported in the usual manner by wheeled trollies running along overhead girders. The load-carriers comprise a platform 5 pivoted at 4 so as to regain and remain in the horizontal position when unloaded but to tip clockwise when loaded unless restrained by the pawl 6. The platform is supported on the frame 3 which hangs from the trolley on the overhead girder and is connected to the conveyor chain so as to form a link thereof. The alternate members 8, Figs. 8 and 9, each of which control the adjacent loadcarrier, are fitted with horizontal shafts 9 having rollers 11 running inside guides and carrying trailing levers 20 fitted with contact members 18, 19. These members can be set individually by hand in alternative positions in which the ball 15 engages one or other of the recesses 16, 17. When a loop 18 is turned upwards, as shown in Fig. 9, it contacts with the corresponding switch-closing member 22, Fig. 7, at each delivery station. At the first station one switch is left closed and the rest open, while at the second station two switches are closed and the rest open, and so on. The switches are all wired in series, so that to dump the load, all the switches at the selected stations must be closed. Thus to discharge at any selected station the loops 18 on the arm 20 must be turned upwards in sufficient number and correct location to close, in passing, those switches that remain open at that particular station. The closing of the switches energizes a solenoid 23 which moves a bar 28 axially through the toggle 27. As shown in Fig. 5, the latch-shaped end 29 of the bar 28 contacts the latch 30 on the load-carrier and so actuates the linkage 17 to withdraw the pawl 6, Fig. 3. In some cases fixed cams zeroize all the upstanding members 18 after the carriers have completed a full circuit of the conveyer.
Patent GB-364026-A (GB)
Title: Improvements in or relating to typographical line-casting machines
IPC: B41B11/52
Filed: 1930-09-25
Abstract: 364,026. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, and GAYTER, E., Newlands, Walton Road, Altrincham, Cheshire. Sept. 25, 1930, No. 28786. [Class 100 (iii).] Moulds.-Relates to moulds for casting type-bars having ribs or grooves in their side faces to enable them to be secured in the chases or holders of printing-machines, the moulds being provided with relatively movable sections, which are separated to permit of the ejection of the type-bars. The mould comprises fixed cap and body sections 3, 4, Fig. 2, on which movable sections 3a, 4a are held by means of screws and slots with sufficient friction to retain them in the positions into which they are moved. The movable sections carry two V-shaped projections 8, 9, which are adapted to engage grooves in the vice-jaws, when the mould-wheel is advanced into casting relation with the matrices, whereby the movable mould-sections are brought together. In order to open the mould for ejection, the trimming- knives 10, 11, Fig. 3, are provided with ribs or projections 12, 13, which, when the mouldwheel advances in the ejecting position, engage grooves in the movable mould-sections and move them apart.
Patent GB-691275-A (GB)
Title: Improvements in or relating to rotary valve internal combustion piston engines
IPC: F01L7/08
Filed: 1950-11-24
Abstract: 691,275. Valves and valve gear. COLOMBO. E. Nov. 24, 1950 [Dec. 5, 1949; Nov. 9, 1950]. No. 28834/50. Class 7 (vi). A rotary valve controlling inlet and exhaust ports is intermittently rotated by a system of cams acting in succession upon a rotor member transmitting motion to the valve and arranged so that the valve rotation is halted during the compression and working strokes. In Fig. 1 the valve 4 is keyed to a sleeve 6 rotated by a wheel 13 on a shaft 12 carrying sets of rollers 11 actuated by three cams 10 on a shaft 9. The valve 4, Fig. 5a, has diametrically opposed ports D, D<SP>1</SP>, which are rotated by the first cam 10 to open the exhaust ports S. S', when there is a slight dwell in rotation before the second cam rotates the valve until the inlet ports A, A<SP>1</SP> are opened. The third cam then rotates the valve into the position shown in which it remains stationary during the compression and working strokes. An annular cam on the sleeve 6 may co-operate with the stem 5 to lift the valve 4 slightly off its seat during rotation. In a modification, Fig. 3, a shaft 9 drives two parallel shafts 21 carrying cams 22 which engage rollers 19 on a rotor 16 keyed to the valve stem 5. The load on the valve is relieved during rotation by a cam 27 which intermittently actuates a lever 26 keyed to a pin 24 screwing in a sleeve 25, whereby the pin is depressed to lift the valve off its seat. The valve 4 may be hollow and cooled by oil circulated therethrough.
Patent GB-483584-A (GB)
Title: Improvements in or relating to jib cranes
IPC: B66C23/20
Filed: 1936-10-26
Abstract: 483,584. Jib cranes. BESNARD, F. Oct. 26, 1936, No. 28999. Convention date, May 12. [Class 78 (iv)] A jib crane is built up of parts assembled in various ways according to the effective height required, the maximum height obtained by employing all the parts being shown in Fig. 4. The structure embodies a pylon or triangular frame, Fig. 6, comprising two pairs of beams or bars 6 detachably secured to lugs 2 on a platform 1 which carries a motor 17, winding gear 16 and an adjustable balance weight 18 and is fixedly or rotatably mounted on a wheeled carriage 19 provided with corner jacks 20. The jib comprises three sections a, b, c of lattice girder, the top section a carrying the hoisting pulley 3 and the lowest section being pivotally attached to lugs 7 at the base of the pylon. The height may be reduced by removing the intermediate section band connecting the top section a to the section c. In each of these forms, the jib is connected to the top of the pylon by struts and tie-bars or cables 10, 12, 14, 15. A further reduction in height is effected by removing the pylon and lowest section c and attaching the sections a, b, with a tie-bar, directly to the platform 1. The carriage 19 may be mounted on four wheels 21, on three wheels with a pivoted forecarriage or on two wheels with a spring support and means .for coupling to a tractor.
Patent GB-442423-A (GB)
Title: Improvements in and connected with travelling grate furnaces
Filed: 1935-10-21
Abstract: 442,423. Regulating combustion in furnaces. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.- (Assignees of Deutsche Babcock & Wilcox Dampfkesselwerke Akt.-Ges. ; Oberhausen, Rhineland, Germany) Oct. 21, 1935, No. 29003. Convention date, Jan. 3. [Class 51 (i)] In a method of operating a travelling grate furnace, flue gases are extracted from one end of the combustion chamber through nozzles 9 in the front wall and are mixed in a header 8 with air from an inlet 10 and blown directly into the other end of the chamber through nozzles 13 in the rear wall. The circulating fan 6 is provided with an air intake 16 and an additional delivery pipe 15 so that air may be blown in from both sets of nozzles to flush and front and rear walls of the chamber. Fuel is fed to the grate 2 from a hopper 3 under the control of a regulating slide 4.
Patent GB-764548-A (GB)
Title: Improvements in or relating to magnesium alloys
IPC: C22C23/04
Filed: 1954-10-08
Abstract: A magnesium-base alloy consists of: Zn, 6-7 per cent; Al, 0.4-0.6 per cent; Be, 0.008-0.012 per cent; Mischmetall, 0.5-1.5 per cent; Si, up to 0.15 per cent; Mg, the remainder.  The mischmetall preferably has the following composition: Ce, 47-50 per cent; La, 25-27 per cent; Nd, 15-17 per cent; Pr, Sa, Yttric earths, together 8-10 per cent; Fe 0.2-0.5 per cent; Si, up to 0.15 per cent, and the alloy may be heat-treated by solution treating in two stages, firstly at 338 DEG C. and secondly at 460 DEG C., and then air cooling and ageing in two stages, firstly at 120-150 DEG C. and secondly at 140-200 DEG C.
Patent GB-936986-A (GB)
Title: Method for assembling impeller elements onto shafts
IPC: F16D1/06
Filed: 1961-08-11
Abstract: 936,986. Securing impellers on shafts. FULLER CO. Aug. 11, 1961 [Oct. 6, 1960], No. 29102/61. Class 80 (2). [Also in Group XXVI] To assemble and bond an interference fit, shaft 7 in an impeller 5, a flanged extension 11, having a bore of slightly larger diameter than the shaft, and having a locating member 23, is bolted to the impeller, the bolts 15 having locating pins 20 and toe-pieces 16, and the shaft is located in the extension (as shown), while epoxy resin adhesive is injected through a fitting 21 around a relieved shaft portion. The shaft is then forced axially into the bore 2 of the impeller, where the adhesive is allowed to set, or is heat cured, to form a bond between the shaft and the impeller. Specification 936,987 is referred to.
Patent GB-1017121-A (GB)
Title: Improvements in or relating to systems dividing one electrical signal by another,particularly in radio direction finding systems
Inventor: KAMEN SUSAN KLEIN
IPC: G01S13/44
Filed: 1962-07-30
Abstract: 1,017,121. Electric analogue calculating. SPERRY RAND CORPORATION. July 30, 1962, No. 29120/62. Heading G4G. [Also in Division H4] Dividing apparatus for dividing a dividend electrical signal by a division electrical signal, comprises means for supplying the two signals as modulations of carrier waves of different frequencies with the amplitude of the division signal substantially larger than that of the dividend signal, means for feeding the two signals simultaneously to a common amplitude limiter, the limiting threshold of which has a value intermediate the amplitudes of the dividend and division signals, and filter means for obtaining a quotient signal which is at the same frequency as the dividend signal from the output of the amplitude limiter. In the embodiment of Fig. 2, a signal representing A(t) and a signal representing B(t) is processed A(t) to give a signal representing -. The A(t) sig- B(t) nal from source 101 is used to amplitude modulate a carrier signal of frequency # 1  in modulation 105. The B(t) signal from source 102 is similarly used to amplitude modulate a carrier signal of frequency # 2 . The modulated # 2  signal is amplified by a factor K in an amplifier 107, and is added to the modulated w 1  signal in a summing circuit 108. A signal I(t)=A(t) cos # 1 t+KB(t) cos # 2 t is thus produced and is fed to an amplitude limiter 110 having a limiting threshold T. If # 2 = # 1 Œ#d then:- This is in the form:- It can be shown that the output of the amplitude limiter will be:- and by binomial expansion, and ignoring all higher powers of A(t)/KB(t), The amplitude of the output component at 4T A(t) frequency # 1  is thus 4T/#. A(t)/KB(t). This component is therefore separated out by filter 111 and is passed to a detector 112. The resultant signal is fed to an amplifier 114 having a gain #K/4T, to give a signal representing A(t)/B(t). Fig. 4 shows a circuit producing a signal representing A(t).B(t) and comprising two of the circuits of Fig. 2 in series, the first producing 1 the reciprocal quotient -, which is then B(t) divided into A(t) in the second circuit.
Patent GB-761203-A (GB)
Title: Process for producing condensation products from saturated carbonyl-compounds
Filed: 1954-10-18
Abstract: Aldols, ketols or unsaturated carbonyl compounds are obtained by the condensation of either a saturated carbonyl compound having 3 or more carbon atoms in the molecule or a mixture of two saturated carbonyl compounds, of which at least one has 3 or more carbon atoms, the process being carried out by feeding the starting materials into a stream of liquid consisting of water and from 1 to 300 gms/litre of sodium hydroxide or an equinormal amount of another inorganic alkaline condensation catalyst, the rate of flow of the stream in volumes per unit time being from 10 to 100 times the rate of feed of the initial carbonyl compounds and the stream being maintained in turbulent state at a substantially constant temperature until condensation is complete. Suitable inorganic condensation catalysts, in addition to sodium hydroxide, are other caustic alkalis, alkali metal carbonates and alkali metal cyanides.  At operating temperatures in the range 0 DEG  to 60 DEG  C., an aldehyde or a mixture of aldehydes generally gives an aldol and a ketone or a mixture of two ketones or of a ketone and an aldehyde generally gives a ketol or aldol; at operating temperatures in the range 60 DEG  to 150 DEG  C. an aldehyde, a mixture of two aldehydes or a mixture of an aldehyde and a ketone gives an unsaturated carbonyl compound.  In the examples (a) ethyl propyl acrolein is obtained by feeding butyraldehyde into a stream of sodium hydroxide solution; it may be hydrogenated to ethyl hexyl alcohol; (b) diacetone-alcohol is obtained by feeding acetone into sodium hydroxide solution; (c) methyl ethyl acrolein is obtained by feeding a mixture of butyraldehyde and acetaldehyde into sodium hydroxide solution; (d) butyraldol is obtained by feeding butyraldehyde into sodium hydroxide solution; (e) pentyl hexyl acrolein is obtained by feeding heptaldehyde into sodium hydroxide solution; (f) furfurylidene acetone is obtained by feeding a mixture of furfural and acetone into potassium hydroxide solution; and (g) 3-hepten-2-one is obtained by feeding a mixture of butyraldehyde and acetone into potassium hydroxide solution.
Patent GB-862818-A (GB)
Title: Application of solid lubricant coatings to surfaces
IPC: H01F1/03
Filed: 1957-09-17
Abstract: An adherent coating of a solid lubricant consisting of one of the sulphides, selenides, or tellurides of tungsten or molybdenum is applied to a surface of a member having selected characteristics, which are retained only if the temperature does not exceed a certain critical level, by electroplating the surface of the member with tungsten or molybdenum and subjecting the adherent electrodeposit to a converting atmosphere consisting of hydrogen sulphide, selenide, or telluride gas under pressure and at an elevated temperature below the critical level for the member.  The member receiving the coating may be heattreated baryllium compounds, magnetic alloys, or alloys of aluminium, copper, zinc, or silver, or may be a non-conductor such as plastics, ceramics, ferrites, glass or barium itanate in which case a preliminary coating of graphite or silver is applied to render its surface conductive for electroplating.  Typically thin heat-treated steel wires are electroplated with a thin layer of molybdenum from an aqueous bath at 25 DEG C. consisting of ammonium formate and molybdenum oxide using a platinum anode and are then subjected to treatment in an hydrogen sulphide atmosphere at a pressure of 400 lbs./sq. in. at a temperature between 60 DEG  and 125 DEG C., e.g. for 110 hours at 125 DEG C.  For heavier parts temperatures of 150 DEG C. may be used.  If tungsten compounds are to be used, the electroplating bath is an aqueous solution of caustic soda and tungsten oxide and the hydrogen sulphide atmosphere treatment is applied at a pressure of 260 lbs./sq. in. at 280 DEG C. for 20 hours.
Patent GB-820729-A (GB)
Title: Apparatus for granulating plastic masses
IPC: B29B9/06
Filed: 1955-10-13
Abstract: 820,729. Granulating polyvinyl chloride, &c. WACKER-CHEMIE G.m.b.H. Oct. 13, 1955 [Oct. 13, 1954], No. 29254/55. Class 87(2). Plastic material is granulated by feeding it to the space between two relatively rotatable members 1, 2 one or both of which have holes through which the material is extruded. The members are shaped to provide a space which decrease from the open feed end to the other end which is closed. The granules may be removed by a scraper or brush 5. A cooling jacket 6 may be provided. The material may be fed to the granulating apparatus from a gelatinising apparatus, each apparatus having a common drive. Specification 757,607 is referred to.
Patent GB-484158-A (GB)
Title: Electrolytic process for the colouring of aluminium
IPC: C25D3/56
Filed: 1936-10-28
Abstract: 484,158. Colouring aluminium and zinc by electrodeposition. GMACH, L. T. Oct. 28, 1936, No. 29339. [Class 41] A black coating is deposited on aluminium or zinc by cathodic treatment in a bath containing in addition to nickel-plating salts one or more thiocyanates, metallic sulphates other than those of nickel and lead, and lead salts. A suitable bath comprises 10 lbs. nickel ammonium sulphate, 4 lbs. ammonium thiocyanate and 6 lbs. zinc sulphate dissolved in 20 gallons of water to which 10 Ibs. of lead acetate is then added. A nickel anode is employed. In coating aluminium a voltage of 2 is employed ; in coating zinc the voltage is less.
Patent GB-504393-A (GB)
Title: Improvements in or relating to means for driving the cam shafts and auxiliaries of internal combustion engines
IPC: F02B67/00
Filed: 1937-10-27
Abstract: 504,393. Driving cam shafts and auxiliaries. STUBINGS, A. J. Oct. 27, 1937, No. 29339. [Classes 7 (ii), 7 (iii), and 7 (vi)] A driving-unit for the valve gear and auxiliary devices, such as fuel-injection pumps, magnetos, dynamos, and oil or water pumps, comprises a housing attached to the end of the crank case and fitted with bearings for the gears which are splined to, but free to slide axially on, the crank shaft, cam shaft, and the shafts driving the auxiliary devices. Figs. 2 and 3 show an engine crank shaft 1 arranged to drive a cam shaft 3, fuel pump shafts 4, 5, and an oil pump shaft 6 by means of gear wheels 1a, 3a, 4a, 5a, 6a, which are mounted in bearings 1b, 3b, 4b, 5b, 6b carried by a housing 8. This housing is split on the transverse plane 8a to allow the wheels to be mounted in their bearings, and the whole may be enclosed by a cover 10. The gear wheels have splined connections to their shafts. The fuel pump shafts are formed.,with couplings 4f for driving a pair of pumps carried by the cover 10, and the oil pump 9 may also be attached to the cover as shown. The housing and gear wheels are detachable as a complete unit. The gears 1a, 3a, 4a, 5a are arranged as an endless gear train.