baber/WOPTO huggingface dataset:
Patent GB-649861-A (GB)
Title: Improvements in or relating to machines for washing dishes and the like
IPC: D06F39/08
Filed: 1948-08-24
Abstract: 649,861. Washing dishes. CARLSTEDT, S. B. F. Aug. 24, 1948, No. 22277. [Class 138(i)] A dishwashing machine, Fig. 2, has an upper part 1 for receiving the articles to be washed, a lower part 2 communicating with the upper part, an inlet 21. Fig. 3, for washing liquid connected to the lower part, a shaft 6 in the lower part carrying impelling members 7 such as shovels, to circulate the liquid from the lower to the upper part, an electric motor for rotating the shaft and of a type wherein its speed varies in accordance with the load on the impelling members and consequently with the amount of liquid in the lower part and control means such as a valve 23, Fig. 3, in the liquid inlet to keep the, latter closed, e.g. by a spring 24, when the machine is at rest but to open it by centrifugal force when the motor is brought into operation, the control means being adapted gradually to close the inlet as liquid is supplied to the lower part and consequently the speed of the motor is reduced, until the inlet is closed when a predetermined liquid level in the lower part is reached. The liquid supply is connected at 17, Fig. 3, to the lower part 2, and communicates with a central channel 16 formed in the shaft 6. 'The channel 16 communicates with the interior of a counter-balance housing 8<SP>1</SP> for the shovel 7, through a radial hole 21. The hole 21 is normally closed by a valve 23 'which may be formed integral with a centrifugal body 25 slidable in the housing 8<SP>1</SP> against the action of the spring 24 adjustable by a cap 26. The interior of the housing 8<SP>1</SP> communicates with the lower part 2 through a hole 22 in the wall of the housing. When the series electric motor is started it runs at high speed since there is no liquid in the lower part 2. The valve 23 opens the hole 21 by centrifugal force on the body 25. The liquid entering the lower part 2 offers resistance to the shovels 7 and consequently the speed of the motor falls and the valve 23 gradually closes and is finally closed when the speed of the motor is such that the centrifugal force on the body 25 is overcome by the spring 24. Clearly the level of liquid in the lower part 2 may be predetermined. The level of the liquid in the lower part 2 may be adjusted to a lower position by means of a resistance which can be switched in the motor circuit so that the speed of the motor falls more rapidly. The channel 16 may extend through the shaft 6 so as to communicate with the counterbalance housings 8, Fig. 2.
Patent GB-222474-A (GB)
Title: Improvements in or relating to laminated springs
IPC: F16F1/24
Filed: 1924-09-22
Abstract: 222,474. Compagnie d'Applications MÚcaniques. Sept. 29, 1923, [Convention date]. Laminar springs; gaiters. - Short blades or strips 6, Fig. 2, of sheet iron, copper, or other suitable material are inserted between the leaves of a laminar spring, the blades being of a length approximately equal to that of the axle pad. so that the leaves, whilst maintained in contact for a greater or less distance towards their ends, are prevented from sticking together without any lubrication, and also the lateral introduction of grease between the leaves is permitted. The extremities of the blades may be thickened as shown at 8. The blades may be used in springs having brass, brake lining, or graphite. Fig. 3 shows the spring provided with a gaiter 9 which is closured at 10, 11 and provided with a lubricating aperture 12 for forced lateral feeding.
Patent GB-633057-A (GB)
Title: Improvements in or relating to the concentration of olivine
Filed: 1945-08-31
Abstract: A process for the preparation of substantially pure olivine from impure olivine-containing rock or sand includes the steps of comminuting the rock or sand e.g. to a particle size less than 50 mesh, treating the material with water acidified with sulphuric acid e.g. in the proportions of 1-4 pounds of acid per ton of water to form a pulp, neutralizing the pulp or rendering it alkaline by addition of alkali, treating the pulp with sulphide ions, e.g. by addition of sodium sulphide, to precipitate sulphides on the gelatinous silica layer at the surface of each olivine particle and thereafter separating the sulphide coated particles by froth flotation.  The separated olivine may then be further treated by elutriation.  The above treatment may be preceded by roasting the material, e.g. at about 500 DEG  C. for about 3 hours in air, and magnetically separating the ferromagnetic material so formed.
Patent GB-591230-A (GB)
Title: Pattern strippers for foundry plants
IPC: B22C7/00
Filed: 1944-11-15
Abstract: 591,230. Moulding-machines. WHITTAKER, E. H. Nov. 15, 1944, No. 22586. [Class 83 (i)] In a moulding-machine, e.g. as described in Specification 582,747, the mould D is stripped from the pattern C by lowering the latter by the piston 15, the projecting ends of the flask B engaging the ends of fixed rods 25. The upper ends of the rods 25 are guided by brackets 27 fixed to the pattern plate 10. Resilient pads 30 for the plate 10 and roller tables 51 are provided. The sides of the flask are inclined and engage a corresponding formation 24, Fig. 2, on the plate 10 and the ends of flask and table have interengaging frustro-conical pins and recesses 20 ... 23.
Patent GB-377447-A (GB)
Title: Improvements in or relating to tradesmens' or carrier cycles
IPC: B62K7/00
Filed: 1931-08-11
Abstract: 377,447. Carrier cycles. STANDARD CYCLE CO., Ltd. and PERRY, T., 40, Barn Street, Birmingham. Aug. 11, 1931, No. 22649. [Classes 136 (i) and 136 (iii).] In a carrier cycle, the load is supported by a relatively small castor wheel 16, which displaces the usual front steering-wheel of a cycle and has a steering connection with the steering-stem 10. A goods receptacle 19 or other carrier is supported on a frame 18 mounted on a forward extension of a pair of bottom frame tubes 6, to which extension is secured a lug 15 provided with bearings for the pivot stem 14c, Fig. 4, of a fork 14 carrying the castor wheel 16 The fork 14 is provided with a crank arm 14b connected by a link 12 to a crank arm 10a on the lower end of the steering-stem 10, the pivotal connections between the crank arms and the link being provided with ball bearings, which are mounted in split housings 11, 13 so that they can be adjusted by means of bolts 17. Alternatively, the steering connection may consist of a flexible cable and drum, or a flexible cable and a chain and sprocket wheel. A pivoted stand 18a is normally held in the inoperative position by a spring 20.
Patent GB-461500-A (GB)
Title: Improvements relating to the braking equipment of motor vehicles
IPC: B60T13/16
Filed: 1935-08-13
Abstract: 461,500. Fluid-pressure brakes. PRATT, T. E. Aug. 13, 1935, No. 22771. [Class 103 (i)] A hydraulic circulating brake system comprises a four-way junction controlled by a manually operated rotary valve 1 and of which one branch 33 leads to the brakes, two others 20, 21 to and from the reservoir and the fourth 22 is a restricted passage, allowing leakage back to the reservoir to effect reduction of the braking effort in correspondence with the reduction of fluid pressure due to slowing of the vehicle. The brake is con-. tained in a unit mounted on each vehicle wheel and comprising a gear wheel pump casing and liquid reservoir 3 which is hinged to a brake back plate 5 and the pump driving wheel 10 is adapted to be brought into engagement with a driving wheel 11 on the brake drum by means of springs 32 released by operation of a cam 29 engaging a fixed abutment 30, and operated by a Bowden cable and connected to the arm 26 which operates the rotary valve 1 which throttles the pump circuit and byepasses the liquid to the brakes. The pump is provided with two sets of suction and outlet valves to allow the brakes to be operable in either direction of rotation of the pump.
Patent GB-170946-A (GB)
Title: Improvements in and relating to the cooling of dynamo-electric machines
IPC: H02K9/19
Filed: 1920-07-31
Abstract: 170,946. Nobuhara, K.. July 31, 1920. Armatures and field magnets, cooling; dynamos and motors, cooling; casings; commutators.-A dynamo-electric machine in which the working parts are enclosed in an air-tight casing is cooled by passing the cooling-liquid, preferably oil, through passages in the heat-generating parts, whereby the liquid is distributed in the form of a spray over the rotor and stator. The rotor and commutator of the machine are mounted on a hollow shaft 4, the interior of which communicates through radial holes 10, 22, 23 respectively with recesses 6, 9 in the rotor, an annular recess 18 in the commutator, and a space 20 at the extreme end of the commutator. Other radial holes connect the recesses 6 with the air-ducts 8 and the recesses 9 with the space within the casing 1. The recesses 9 at the ends of the rotor are in communication through axial passages 40. The space 20 communicates with the interior of the machine through axial holes 19 formed in the commutator segments. Axial holes 24 are also formed in the commutator end ring 17. A dished plate 26 is attached to the end cover 3, leaving between it and the cover a space 27. The cooling-liquid is kept in circulation by a pump 30, which draws the liquid out from the bottom of the casing and forces it through a cooling-chamber 31 into the hollow shaft 4, the space 27, and pipes 28 provided with sprinklers 29 for distributing the liquid over the field poles 15. The surface of the liquid in the casing is just below the lowest point of the rotor when the machine is at rest. The liquid forced into the space 27 passes out of it in the form of a cylindrical film of liquid, thereby sealing the clearance 25 and only allowing the internal gas to escape when an accidental rise of temperature occurs.
Patent GB-206944-A (GB)
Title: Improvements in electric switches
IPC: H01H5/06
Filed: 1922-08-22
Abstract: 206,944. Green, A. Aug. 22, 1922. Switches, quick-action.-The operating-arm a and the contact-arm b are connected by deadcentre springs g and rest by knife-edges in V notches in pillars c fixed to the base. The arm b may either fit somewhat easily in the V notches so that it presses evenly on the two fixed contacts, or as shown in the Figure, it may carry a separate yieldingly-supported bridge-piece h. The piece h is attached by spring blades j to a bent-back portion of the arm b and is pressed into contact by another portion of the arm b. To open the switch the arm a is raised but a notch m in a latch-piece k holds back the arm b till the end q of the arm a engages the tail n of the lever k and effects release. In the open position of the switch, the part s of the lever k forms a stop for the arm b.
Patent GB-714514-A (GB)
Title: Improvements in or relating to building structures designed to absorb shocks
IPC: E04H9/06
Filed: 1951-10-02
Abstract: 714,514. Shock-resisting buildings. SMITH, C. A. V., and FEASEY, J. Oct. 2, 1952 [Oct. 2, 1951], No. 22938/51. Class 20 (1) A bui'ding structure has a framework of rigid members hinged together and braced by resilient elements, and wall covering elements either flexible in themselves or flexibly or resiliently joined to the framework, so that with the framework secured to the ground the structure can distort under the action of a large external force, e.g. bomb blast, transmitted through the air, and subsequently recover its shape. A building framework comprises a number of transverse arch assemblies each having two lattice columns I carrying a roof truss 2. Each column pivots on a ball joint 3 on a plate pegged to the ground and is connected at the top by a ball joint 6 to the truss. Adjacent trusses are linked by three beams on each side of the centre line and the structure is braced by diagonal ties 19 incorporating tension springs 20 across the corners or by external guys 21 with springs 22. Each truss is foldable about a central hinge 23 after the columns have been folded to lie alongside and the trusses are brought together by folding the beams about a central hinge 15 after releasing leaf springs 16 normally aligning the beam halves. A lock, e.g. a thumb screw, may connect members at opposite ends of the springs to render the tie &c. rigid when desired. Or a rigid member associated with the spring may be arranged to snap when subjected to shock. The framework is covered with cocoon material 27 such as described in Specification 608,654, [Group IV(a)]. Rigid pane!s as of aluminium may be flexibly or resiliently joined to the framework.
Patent GB-1152914-A (GB)
Title: Improvements in or relating to Shoe Upper Conforming Machines
IPC: A43D25/18
Filed: 1966-05-24
Abstract: 1,152,914. Coating apparatus. BRITISH UNITED SHOE MACHINERY CO., Ltd. 24 May, 1966 [25 May, 1965], No. 23005/66. Heading B2L. [Also in Division A3] A heel seat lasting machine includes a shoesupport 22 and a carriage 40 movable towards and away from a shoe and having mounted thereon an outer mould member 42, an adhesive applying device and a wiper assembly (not shown). As described the lasting machine described in Specification No. 1,034,662 is modified by the addition of the adhesive applying device on the carriage 40. The adhesive applying device 100 consists of a melting chamber 114 into which is fed a solid rod R of thermoplastic adhesive. The rod R of adhesive is fed by toothed wheels 140; 142driven by an electric motor 132 from a reel 148 into a passageway 116 in the melting chamber and then passes in liquid form down a vertical bore 186 to an extrusion nozzle 118. The bore 186 leads to a U-shaped channel 180, (Fig. 3) containing a spring-loaded valve plate 190 which is raised to allow the adhesive to flow through apertures 184 in the bottom of the channel 180 by pins 192 projecting through the bottom of the extrusion nozzle and which are raised when they contact the shoe bottom. The apertures 184 lead to a U-shaped groove 182 on the bottom of the extrusion nozzle 118 so that a band of adhesive is deposited on the shoe bottom. The entire assembly is inclined at about 10‹ to the horizontal so that after the adhesive has been applied any excess adhesive runs to the front ends of the groove 182 where it is prevented from dropping on the shoe by plates 202 having apertures 204 which allow the extrusion of adhesive under pressure but are small enough to prevent the flow of adhesive by gravity. When the carriage 40 has moved forwards until the outer mould 42 contacts the heel end of the shoe S the extrusion nozzle is positioned above the insole I. The adhesive applying assembly is mounted on parallel links 110, 112 so that the extrusion nozzle 118 can be swung downwardly and rearwardly into engagement with the insole I by means of hydraulic piston and cylinder 150 connected to the adhesive applying device by a cross-pin 158. The machine includes automatic electrical and hydraulic control circuits and operates as follows:-on depression of a treadle (not shown) the shoe support 22 is raised to clamp the shoe against a hold-down 30 and the carriage 40 is moved forwardly until the outer mould member 42 engages the heel end of the shoe. Cylinder 150 is then actuated to move the extrusion nozzle 118 into engagement with the insole I and motor 132 is actuated for a predetermined time to extrude a predetermined quantity of adhesive onto the insole I. The.extrusion nozzle 118 is then raised out of engagement with the insole I and the wipers are then actuated to complete the lasting of the heel seat.
Patent GB-789561-A (GB)
Title: Improvements in and relating to derivatives of naphthalene and the manufacture thereof
Inventor: DUFFIN WALTER MARK
Filed: 1955-08-10
Abstract: The invention comprises substituted naphthalenes of the general formula <FORM:0789561/IV (b)/1> and acid addition salts thereof, wherein R1 represents hydrogen or an alkyl or monohydroxyalkyl group, R2 represents an alkyl or monohydroxyalkyl group, the sum of the carbon atoms in the groups R1 and R2 being from 4 to 8, or -NR1R2 represents the pyrrolidino or piperidino group, and the preparation thereof by reducing an amide of the general formula <FORM:0789561/IV (b)/2> wherein R1 and R2 have the above significance, by methods known to be capable of the direct reduction of acid amide groups to aminomethyl groups, e.g. by means of lithium aluminium hydride, and optionally converting the product to an acid addition salt.  In the examples: 3 - pyrrolidinomethyl - 2 - naphthol and the hydrochloride thereof, 3-piperidinomethyl-2-naphthol hydrochloride, 3-diethylaminomethyl-2 - naphthol hydrochloride, 3 - dibutylaminomethyl - 2 - naphthol hydrochloride and 3 - b  - hydroxyethylaminomethyl - 2 - naphthol hydrochloride are prepared. Starting materials.  Amides of the general formula <FORM:0789561/IV (b)/3> wherein R1 and R2 have the above significance, are prepared by reacting 2-hydroxy-3-naphthoyl chloride with the required amine.  In the examples amides are prepared by reacting 2-hydroxy-3-naphthoyl chloride (obtained by reacting the free acid with thionyl chloride) with pyrrolidine, piperidine, diethylamine, dibutylamine and b -hydroxyethylamine.
Patent GB-995048-A (GB)
Title: Androstanone derivatives
IPC: B21D5/10
Filed: 1963-06-10
Abstract: The invention comprises 6b  - nitro - 3a ,5a -cycloandrostan-17-one and the nitrate ester of 33 - hydroxyandrost - 5 - en - 17 - one, and their preparation by treating 6b -hydroxy-3a ,5a -cycloandstostan-17-one with at least an equimolar amount of an alkali metal nitrite in the presence of aqueous acetic acid for at least 10 hours.  If the concentration of the acetic acid is above 60% the nitrate ester is the chief product, while below this concentration the nitro compound predominates.  Examples are given.
Patent GB-1480452-A (GB)
Title: Piezoelectric transducer control circuits
IPC: H04R3/00
Filed: 1975-05-27
Abstract: 1480452 Ultrasonic transmit/receive system FIAT SpA 27 May 1975 [1 Aug 1974] 23143/75 Heading G1G A control circuit for two or more Piezo-electric transducers 7, 7<SP>1</SP> cyclically operable to transmit and receive ultrasonic signals comprises a transistor 1 turned on and off by a timing circuit 2 to induce transmission pulse signals by ringing inductor 3, a Zener diode 5 which blocks the circuit's D.C. supply voltage but conducts when subjected to the high voltage induced pulses, a decoupling diode 6, 6<SP>1</SP>, to prevent interaction between transducers, and a series combination of a resistor 8, 8<SP>1</SP> and a diode 12, 12<SP>1</SP> across each transducer whereby the diode 12, 12<SP>1</SP> conducts  during the transmission pulse but is not biased into conduction by received signals from the transducer. In the embodiment shown, negative-going voltages at the transducers are suppressed by diodes 15, 151 and receiver amplifiers 9, 9<SP>1</SP> are protected from negative overload voltages by diodes 13, 13<SP>1</SP>.
Patent GB-1211488-A (GB)
Title: A mixing device and disck therefor
Inventor: MORANE BRUNO
IPC: B01F5/06
Filed: 1969-05-06
Abstract: 1,211,488. Mixing in tortuous passages. L,OREAL. 6 May, 1969 [8 May, 1968], No. 23180/69. Heading B1C. A mixing device for fluids has a housing 6, 10 with an inlet 9 leading to the centre of a diametral groove 2 in the under surface of a disc 1, whence the fluid passes by way of intersecting grooves 4 to two arcuate grooves 3. These are connected by holes 5 to a similar pattern of grooves in the upper surface of the disc, which are traversed by the fluid in reverse order to reach an outlet 11. The device may be combined with a dispensing nozzle 12 comprising a central column 13 carrying recessed discs 14.
Patent GB-1004193-A (GB)
Title: Process for the chlorination of synthetic polymeric materials
IPC: C08F8/20
Filed: 1963-06-11
Abstract: A polyolefine and/or polyvinyl chloride or an olefine/vinyl chloride copolymer is suspended in a single phase mixture of a C1- 3 aliphatic water-miscible alcohol, a chlorinated hydrocarbon and optionally water, thereafter or simultaneously the chlorinated hydrocarbon is caused to be separated out and to be deposited on the suspended polymer by means of water or aq. hydrochloric acid and the polymer is then chlorinated in suspension using light and/or ultra-violet rays at a temperature below the boiling point of the components of the suspension medium or their azeotropes.  The polyolefine may be polypropylene or polyethylene. The chlorinated hydrocarbon may be carbon tetrachloride, chloroform or methylene chloride and the alcohol may be methanol.  After the polymer has been suspended in a mixture of water or aq. hydrochloric acid, alcohol and chlorinated hydrocarbon, the aq. phase containing the alcohol may be replaced by an alcohol-free aq. or aq. hydrochloric acid phase which may be saturated with chlorinated hydrocarbon.  The chlorination temperature may be 0-55 DEG  C.
Patent GB-743121-A (GB)
Title: Treating nodular iron
IPC: C21C1/10
Filed: 1951-10-08
Abstract: A cast iron melt having sufficient magnesium to give an as cast nodular structure, is contacted with a refractory substance which includes a magnesium type flux.  Such fluxes are borax, boric acid, alkali metal fluoborates and double salts of magnesium chloride and an alkali metal chloride.  The melt may be flowed over the treated refractory substance, or the latter may be used as a lining in the melt handling apparatus, or the refractory may be of a perforate form and placed in the mould so that the melt flows through the perforations.
Patent GB-1352163-A (GB)
Title: Alarm systems
IPC: G08B13/24
Filed: 1971-04-19
Abstract: 1352163 Radar GARSIDE CORP 19 April 1971 [23 July 1970] 23444/71 Heading H4D A radar sensor comprises a source of high frequency electromagnetic radiation, an external antenna for transmitting said radiation, a shielded comparison antenna for providing reference radiation corresponding to the transmitted radiation, a voltage amplifier connected to both antennae for amplifying any difference voltage therebetween and separate low pass filtering means between each antenna and the amplifier. The radar sensor of Specification 1,331,061 (Division H4) is modified to include low pass filtering in the output leads from the external and reference antennae (Fig. 7, not shown). Movement of an intruder in a protected area induces changes in the radiation impedance of an antenna and changes are detected by a detector network 20 (Fig. 3, not shown). Detection of the right form of signal triggers a 17 second monostable 22 and releases a tone inhibit 24. The monostable (Fig. 3, not shown) operates a relay (RY1, Fig. 4, not shown) in alarm driver 30 which sounds a bell. Tone inhibit 24 controls an audio oscillator 26 which drives a loud-speaker giving a second audible alarm and detector 20 switches on a warning light via lamp driver 28. The alarm system is turned on by a key switch 38 which drives a delay 32 providing two minutes delay before the system is actually turned on. A seven-button decoder 40 may also be used which disables the system temporarily, allowing access to the protected area to operate the key switch.
Patent GB-833321-A (GB)
Title: Sublimation apparatus
IPC: B01D7/00
Filed: 1945-09-11
Abstract: <PICT:0833321/III/1> <PICT:0833321/III/2> <PICT:0833321/III/3> In a sublimation apparatus of the type described in Specification 803,989, having an elongated heating portion containing a movable elongated charge boat, the charge boat is made up of a metal tube with a longitudinal slot through which a set of collapsible shelves is inserted to support the charge to be sublimed within the charge boat. As shown in Fig. 1, the sublimation apparatus consists of a chamber comprising a heating section of tubular form which can be inserted in movable furnace 4, and a condensing portion 11 where the sublimed charge is collected.  Charge is placed in a charge boat 9 (see Fig. 5), which has a longitudinal slot 10 through which the shelves shown in Fig. 4 are passed in their folded position.  The apparatus is particularly suitable for subliming uranium halides.