baber/WOPTO huggingface dataset:
Patent GB-182953-A (GB)
Title: Improvements in or relating to fastenings for necklets, and pendant chains
IPC: A44C5/20
Filed: 1921-04-18
Abstract: 182,953. Morris, B. J. April 18, 1921. Bayonet-joint fastenings.-A fastening for necklets, pendants, &c., consists of two cylinders A, B fitted one within the other and held by a bayonet-joint of which the groove G is on the outer cylinder A, and the stud C on the inner cylinder B. The cylinder B has a protruding spring-pressed stud D which holds the fixed stud O tightly within the recess J at the end of the bayonet-slot G. Both cylinders have rings F at their closed ends upon which the pendant &c. is fastened. The cylinder A may have an upstanding bridge-piece L over the end of the slot G for strengthening purposes, the head of the stud C passing under it when moved into and out of the slot G.
Patent GB-382214-A (GB)
Title: Improvements in rotary piston compressors
IPC: F04C18/34
Filed: 1932-04-19
Abstract: 382,214. Rotary compressors. TEVES, A., 23, Gustavsburgstrasse, Frankfort-on- Main, Germany. April 19, 1932, No. 11226. Convention date, May 11, 1931. [Class 110 (ii).] The casing o f a rotary compressor is built up of two end bearing plates a, b, and intermediate rings c<1>, c<2>, d, with parallel machined faces. Bolts e secure the parts of the casing together. Parallel sided pistons f<1>, f<2> operate between the plates a, b and the centre plate d. Delivery valves k<1>, k<2> deliver into a common channel l. Both inlet and outlet valves and a non-return inlet valve are all located in the endplates a, b, and are accessible from outside the pump. The capacity of the pump may be varied by using pistons and rings of greater or less widths.
Patent GB-576826-A (GB)
Title: Improvements in or relating to the production of beams of short-wave electromagneticradiation
IPC: H01Q19/12
Filed: 1940-07-05
Abstract: 576,826. Directive wireless signalling. DOWSETT, H. M. July 5, 1940, No. 11267. [Class 40 (v)] [Also in Group VI] An axially-disposed radiating linear dipole A, B is placed at one focus of an ellipsoidal reflector CRD so as to concentrate the waves at or near the conjugate focus Z of the reflector. For electro-therapy or biological research the receiving apparatus is placed near the focus Z, but for wireless signalling an additional paraboloidal reflector PSP with its focus at Z is arranged to reflect the waves in a parallel beam which passes through a hole CC at the apex of the reflector. A divergent beam, e.g. for use as a marker beacon can be obtained by omitting the parabolic reflector or by using a second elliptical reflector in place of the parabolic reflector PSP. In order to compensate for the distortion of the wave-front caused by the capacitance of the linear dipole, the reflector curvature is matched to the wave-front curvature in a manner similar to that described in Specification 576,825. Specifications 11690/14, 103,830, 302,793, [all in Class 40 (v)], 436,355, 448,418, 501,429 and 576,828 also are referred to.
Patent GB-635469-A (GB)
Title: Improvements in or relating to the wheels of tractors or the like
IPC: B60B15/12
Filed: 1948-04-23
Abstract: 635,469. Vehicle wheels. DUNN, D. A. April 23, 1948, No. 11267. [Class 144 (i)] A non-slip device for tractor &c. wheels comprises a frame integral with, or mounted at the side of, the wheel and supporting a series of independently-slidable members each carrying a plurality of ground-engaging projections, and means for locking the slidable members in selected position so as to project beyond-or lie within-the normal wheel tread. As shown, the frame comprises a collar 2 bolted to the wheel centre and connected by spokes 4 to a ring 5 from which project pairs of parallel arms 7. The ground-engaging shoes 16 are carried by arcuate slides 13 fitted with bolts 11 engaging slots 9 in the arms 7. In the position shown in Figs. 1 and 2, with the shoes 7 inoperative, the slides 13 are retracted and secured by the bolts 11 positioned at the inner ends of the slots 9. In the operative position shown in Fig. 3, the slides 13 are extended and secured by the bolts now seated in notches 10 at the outer ends of the slots 9. In a modification, for relatively light wheels, each shoe-carrying slide is fitted to a single arm on the frame.
Patent GB-543057-A (GB)
Title: Improvements in and relating to ribbon reversing mechanism for typewriting, billing,accounting and like machines
IPC: B41J33/518
Filed: 1940-07-05
Abstract: 543,057. Ink-ribbon mechanism. PLANQUE, C. C. M., GRICE, J., and BRITISH TYPEWRITERS, Ltd. July 5, 1940, No. 11291. [Class 100 (iv)] Automatic feed-reversal mechanism comprises a slide which controls means for alternately rotating the ribbon-spools and is connected to a rocking beam provided with pivoted trips for co-operation, under control of projections on the ribbon, with a reciprocating member. In the mechanism shown in the Figure, the spools 3 are provided with ratchetwheels 25, 25a for co-operation with pawls 26, 26a on a bail 27 which is rocked by the keys. A slide 17, provided with pins 18, 18a for disengaging the pawls, engages a pivoted beam 15 carrying pivoted arms or trips 19a which can co-operate with reciprocating rods 29, 29a operated by the bail 27. The arms 19a are connected by springs 11 to pivoted arms 8, 8a formed with ribbon-guides 7, 7a. A throw-over spring 24 is connected to the beam 15 and a lever 21 which is connected to the beam. When the ribbon is winding, for instance, on the left-hand spool, 3 the pawl 26a is operative, and the pawl 26 is held in disengaged position by the pin 18. When the ribbon has been wound off the right-hand spool, the arm 8 is lifted by a stud 38 on the ribbon, the associated arm 19a is moved into the path of the rod 29, the beam 15 is rocked, and then thrown over by the spring 24, the slide 17 is displaced, and the feed is reversed. Specification 535,136 is referred to.
Patent GB-574771-A (GB)
Title: Apparatus for the production of anhydrous metal chlorides
IPC: C01F5/32
Filed: 1941-02-12
Abstract: 574,771. Production of anhydrous metal chlorides. ABBEY, A. (Consolidated Mining & Smelting Co., of Canada, Ltd.). Feb. 12, 1941, No. 11314/42. Divided out of 572,662. [Class 1 (iii)] [Also in Group XI] Anhydrous metal chlorides are produced as disclosed in the original application, e.g., using a vertical-shaft furnace 1 lined with silica bricks 2, and electrically heated with carbon &c. resistances 6 to produce magnesium chloride from magnesium oxide, coke, and chlorine supplied through a nozzle 7.
Patent GB-624915-A (GB)
Title: Improvements in or relating to flame machining metal from oxidation-resistant metals and alloys
IPC: B23K35/22
Filed: 1947-04-28
Abstract: 624,915. Dividing by fusion. LINDE AIR PRODUCTS CO. April 28, 1947, No. 11342. Convention date, May 10, 1946. [Class 83 (iv)] In flame - machining oxidation resistant metals, e.g. steels containing more than 5 per cent chromium, an oxygen jet impinges on zones heated to oxygen ignition temperature, and supplied with slag fluidifying powdered borax and/or boric acid. The powder, finer than 60 mesh is fed from a dispenser 11 by compressed oxygen and entrained in the jet oxygen supply pipe 25, at a pressure of 60 lb. per sq. in. The central jet orifice is surrounded by the preheating jet passages for oxy-acetylene, and in cutting a 1 inch 18-8 stainless steel 3 ozs. powder were used per minute cutting at 4¢ inch per minute for example with boric acid. A mixture may comprise 82 per cent boric acid and 18 per cent fused anhydrous borax by weight. Specification 611,323 is referred to.
Patent GB-1000286-A (GB)
Title: Light scattering measuring apparatus
IPC: G01N21/51
Filed: 1964-03-18
Abstract: 1,000,286. Turbidometers. BECKMAN INSTRUMENTS Inc. March 18,1964 [April 29,1963] ,  No. 11356/64. Heading G1A. In scattered light measuring apparatus incorporating a double-beam spectrophotometer, a light beam is switched alternately along a path including a sample and a reference path, a detector being mounted.movably about the sample so that the scattered light may be measured over a wide angle. Light from a source 11 modulated by a beam chopper 12 is supplied to a monochromator 14 having a prism drive 60, and the output is split by a rotating half-mirror 16 into two beams of which one is directed on a sample within a cell 17 and the other directly on a detector 18. The detector 18 and mirrors 20... 23 are all mounted to rotate with a disc 24 which may be moved either manually or by a scan motor 26. Thus the light scattered at various angles by the sample is directed by the mirror 20 on the detector 18. The electrical output of the detector is fed to an amplifier 30, and switches 29, 32 are controlled by the motor 33 operating the half-mirror 16 so that the signal representing the scattered light passes unattenuated to a demodulator 34, potentiometer 41, differential amplifier 43 and recorder drive motor 45, whereas the reference signal is attenuated at 28 and passes by way of a demodulator 35 to an indicating meter 39 and to a motor 37 controlling the slit size to provide constant energy in the beam to the sample cell. The motor 45 also controls the movable contact of the potentiometer 40 to provide feedback to the amplifier 43. With the switches 47 actuated, the reference output is disconnected and only the scattered light output controls the amplifier 43. The light scattering cell may take the form shown in Fig. 2 having a cylindrical front 68 and fitting in a thermostat jacket.
Patent GB-113594-A (GB)
IPC: C21D9/00
Abstract: 113,594. Richmond Gas Stove & Meter Co., and Thompson, J. May 14, 1917. Screens.-A furnace for heating metal articles &c. is provided with a screen or guard 17 to protect the operator from the heat and issuing gases, the lower part of which is set at an angle and formed in two parts with a central gap or opening between them, through which articles may be passed into the furnace and inspected therein. A hinged or movable transparent portion 13 is fitted across the gap as shown. The screen is shown applied to a small gas-fired furnace in which the waste gases are discharged through the working opening 5 or through an opening 12 in the door.
Patent GB-502218-A (GB)
Title: Improvements in or relating to high-lift safety valves for steam boilers
IPC: F16K17/08
Filed: 1938-04-13
Abstract: 502,218. Safety valves. KNORRBREMSE AKT.-GES. April 13, 1938, No. 11411. Convention date, May 3. 1937. Addition to 492,878. [Class 135] In the high-lift safety valve for steam boilers claimed in the parent Specification, the valve e in the controlling device c is maintained closed by the greater strength of its closing spring g over that of its opening spring i until after a certain lapse of time a steam pressure is built up in a chamber c<1> surrounding the spring g sufficient to overcome the resistance of the latter. The springs g, i are enclosed in bellows p, h respectively. The chamber c<1> communicates by a small bore o less than the bore of the pipe b with a chamber k which, when the valve c opens, connects the pipes b, f leading to the huddling chamber and the counter pressure chamber of the safety valve respectively. The size of the bore o and of the bellows p are chosen so that the time required for the pressure to build up to the necessary value in the chamber c<1> corresponds to that required for the pressure in the huddling chamber to fall to the desired value.
Patent GB-974674-A (GB)
Title: Improvements in or relating to portable electric power saw tools
IPC: B27B9/00
Filed: 1962-03-26
Abstract: 974,674. Sawing. J. J. DUNCE. March 21, 1963 [March 26, 1962], No. 11422/62. Heading B5L. Portable saw assembly comprises a spindle 16 which is rotatably mounted in a body portion 8 having at least one handle 32 and is, at one end, adapted to carry a circular saw blade 18 and, at the other end, adapted to be connected to a power driving means, such as a portable electric drill, and a gauge-base 2 adjustably mounted on the body portion for movement towards and away from the blade, the gauge-base serving to support the assembly for movement over a supporting surface with the blade within a minimum clearance distance of the surface. The gaugebase is provided with graduated posts 4 adjustably received in lugs 10 on the body portion 8 which has a boss 14 for the spindle 16. The saw blade 18 is secured to one end of the spindle by a thin-headed screw 42 and the gauge-base has a notch 6 which serves as a clearance space for the head of the screw when the blade is closely adjacent the gauge base. The base may act to support the assembly while the bottom of a door is cut-off with the door in situ. The depth of cut of the saw is controlled by a gauge 24a having slots 28 which engage longitudinal projections on the upper surface of the body portion, thumb screws being provided to clamp the gauge in position. A part 56 of the gauge acts as a guard for the blade, and pointed ends 25 serve for guiding the assembly over a workpiece when, with the gauge-base 2 removed, the assembly is used for ripping or cross-cutting, the blade extending through a slot 58. An alternative depth gauge is disposed on one side only of the blade. The body portion may have a guard 60 which is urged by a spring 70 to a position covering the blade and has a roller 66 which engages the workpiece to move the guard and expose the blade. The handle on the body portion may have a clamp 52 for engaging the bearing boss of the hand drill. A further handle 80 may be secured to the gauge-base 2. The saw blade may be removed and replaced on the spindle 16 by a spanner 49 having pins 48 to engage holes in the head of the screw 42, the spindle, at this time, being prevented from rotating by a spanner 84 engaging a hexagon 29 on the spindle and a web 15 on the body portion.
Patent GB-398453-A (GB)
Title: A device for mixing cement
IPC: B01F7/18
Filed: 1933-04-19
Abstract: 398,453. Mixing cement. DEUTSCHE WERKE KIEL AKT.-GES., 114, Werftstrasse, and KLIE, W., 127, Werftstrasse, Kiel, Germany. April 19, 1933, No. 11485. [Class 86.] A device for mixing cement comprises a barrel in which is mounted a shaft having vanes at its upper end which atomize the dry cement as it falls into water in the lower part of the barrel, the lower part of the shaft being fitted with stirrers. The cement is fed from a hopper b and the stirrers k co-operate with fixed rods m projecting from the bottom of the barrel. Water is supplied by a pipe n and the mixed cement discharged through a pipe p. The vanes h for atomizing the dry cement are inclined as shown.
Patent GB-473850-A (GB)
Title: Improvements in or relating to turf-cutters
IPC: A01B45/04
Filed: 1936-04-24
Abstract: 473,850. Turf - cutting machines. GRIMSHAW, E. U. April 24, 1936, No. 11689. [Class 6 (ii)] A turf-cutter comprises two spaced cutter discs 3 on a common hub 1 or spindle 4, one or more transverse cutter blades 6 bridging the space between the discs 3 and rotatable therewith, and a horizontally disposed cutter blade 7 having a V- or bow-shaped forward edge 8 situated behind the hub or spindle and as close as possible to the blades 6. The cutting edges of the blades 6 are parallel to the spindle 4 and flush with the peripheries of the discs 3. The blade 7 is adjustable vertically and longitudinally of the frame 5, which is mounted on a roller 16.
Patent GB-626247-A (GB)
Title: Systems for controlling the connection of a load across a direct current motor supplied through a rectifier
IPC: H02M7/06
Filed: 1947-05-01
Abstract: 626,247. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. May 1, 1947, No. 11692 Convention date, May 1, 1946. [Class 38(iii)] In a system in which a D.C. motor is supplied through a rectifier, a resistance is arranged for connection across the load by an overload voltage relay also connected across the load, there being an arrangement whereby upon cessation of regeneration the overvoltage relay is reset and its connections restored to normal while the resistance is connected across the load. When a regenerative voltage is attained by a motor 6 supplied through a rectifier 1, the consequent energization of an overvoltage relay 9, energizes, through its contacts 10, a relay 8 whereby a resistance 7 is connected through contacts 20 across the motor, while contacts 21 are also closed. Upon increase of current from rectifier 1 to motor 6, a current relay 11 closes its contacts 12 at a predetermined current, and a time relay 13 is energized. This momentarily closes contact 14 and energizes an auxiliary control relay 15 which through contacts 16 energizes relay 17 and breaks at contacts 19 the energization circuit of overvoltage relay 9, but through contacts 18 maintains relay 8 energized. When contacts 14 open, relay 17 is de-energized thus resetting overvoltage relay 9 for immediate use, but relay 15 does not open until after a further time delay, when the opening of contacts 18 de-energizes relay 8 to disconnect resistance 7 from the motor circuit.
Patent GB-597511-A (GB)
Title: Improvements in oscillators of the velocity modulation type
IPC: H01J23/10
Filed: 1944-06-21
Abstract: 597,511. Velocity-modulated tubes. WESTERN ELECTRIC CO., Inc. June 21, 1944, No. 11839. Convention date, June 23, 1943. [Class 39 (i)] A velocity-modulation oscillator is arranged to inhibit oscillation in the gravest mode or a plurality of the gravest modes, only oscillations of higher order being produced. This is effected by adjustment of the impelling force applied to the electron stream and thus of the transit time or alternatively by design of a feed-back between two resonators to pass freely only the oscillations of higher order. The device shown in Fig. 1 comprises an evacuated container 12 enclosing an electron gun 13, apertured conducting discs 15, 16 separated by gaps 18, 19 from drift tube 17, and a cup-shaped collector 14 of graphite or other material. The container is surrounded by a two-part shell 20 divided along a diametral plane passing through the axis of the container and constituting with the discs 15, 16 a cavity resonator. Polarizing voltages are applied to the electrodes, the discs 15, 16 and the drift tube 'from a source 25 through potentiometers 26, 27. The shell 20 is of magnetic material, magnetized to provide a positive pole at the centre part-adjacent the disc 15 and a negative pole at the centre part adjacent the disc 16, focusing of the electron beam being thereby effected. External magnetic shunts consisting of U-shaped strips 34, 35 of soft iron may be adjusted in position to vary the field. The shell is provided with an internal coating of copper or copper overplated with silver to reduce hysteresis. Tuning is'effected by a plug or plugs 32. Energy is withdrawn by a co-axial line 49. The device shown in Fig. 2 comprises toroidal resonators 36, 37 connected by a wave-guide 45 designed to feed 'back only the higher mode oscillations the guide being provided with apertures 43, 44 of predetermined size or with irises. Tuning plugs 41, 42 are provided for each resonator. Instead of a wave-guide a co-axial line may be used as feed-:back. In modifications the two resonators are constituted by a single shell divided by a thick walled conducting disc which supports thd drift tube, the disc being provided with apertures or irises designed to feed back only the higher mode oscillations.
Patent GB-1450665-A (GB)
Title: Microcapsules
IPC: B01J13/18
Filed: 1974-03-18
Abstract: 1450665 Microcapsules IMPERIAL CHEMICAL INDUSTRIES Ltd 5 March 1975 [18 March 1974] 11863/74 Heading B8C A process for producing microcapsules comprises (a) forming a dispersion of polymer particles in a first liquid which is a non-solvent for the polymer, (b) emulsifying said dispersion in the presence of an emulsifying agent, as a disperse phase of microcapsule precursors in a second liquid which is immiscible with the first liquid and is a non-solvent for the polymer, the emulsifying agent being solvated by the second liquid and non-solvated by the first liquid whereby the disperse polymer particles are concentrated in the region of the interface of the first and second liquids and (c) integrating at least some of the disperse polymer particles in the region of the interface to form microcapsules. The polymer particles suitably have  a size in the range 0À1-2 micron and may be prepared by polymerizing appropriate monomers in a medium which comprises the first liquid. The monomer may be selected from C 1-4  alkyl acrylates or methacrylates, vinyl esters and styrene and homologues thereof. The first liquid may contain dispersed or dissolved material, e.g. a pigment such as titanium dioxide, which is to be incorporated within the microcapsule. The first or second liquid may be water or an aliphatic hydrocarbon. Integration may occur in the presence of a coalescing agent.
Patent GB-840413-A (GB)
Title: Device for squeezing collapsible tubes
IPC: B65D35/28
Filed: 1958-04-15
Abstract: 840,413. Collapsible tubes. FURRER, E. April 15, 1958 [April 15, 1957], No. 11949/58. Class 66. A device for squeezing collapsible tubes, e.g. tube 44, comprises two pivotally-connected parts 1 and 2 which may be manually pressed together against the action of a spring 33, and a pair of squeezing members e.g. a rotary axle 3 and a beam 13 mounted on the two parts 1 and 2, the axle 3 having a ratchet wheel 5 cooperating with a driving pawl 32 and locking pawl 24 to produce limited step-like rotation of the axle when the parts 1, 2 are moved towards and away from each other. The parts 1, 2 form a casing, each part having inner and outer lateral webs 1<SP>1</SP>, 2<SP>1</SP> respectively slidable on one another, an axle 6 being mounted in holes 7 in the webs 1<SP>1</SP> and passing through slots 8 in webs 2<SP>1</SP>. Two levers 10 mounted on the axle 6 are jointed at their lower ends by a cross member 11 having hand-grip lug 12 and at their upper ends by the beam 13, a spring 14 urging the bottoms of the levers 10 anti-clockwise and thereby pressing the beam 13 towards the axle 6. The pawl 24, projecting through a window 23 in the adjacent web 1<SP>1</SP>, is formed on one leg 20 of a lever 18 pivotally mounted on an axle 17 fixed to web 1<SP>1</SP>. The pawl 32 is formed on one leg 28 of a lever 26, pivotally mounted on an axle 25 fixed in the webs 2<SP>1</SP>, and projects through a window 31 in the adjacent web 21. The leg 28 of lever 26 carries an abutment 39 and is connected to a second leg of the lever 26 by a transverse portion 27 ; similarly a portion 19 connects leg 20 to a second leg of lever 18. The spring 33 wound on the axle 6, urges both portions 19 and 27 outwards, thereby forcing pawls 24 and 32 into engagement with the ratchet wheel 5. To use the device the parts 1, 2 are pressed together, the axle 6 riding up the slot 8, so that the pawl 32 causes the ratchet wheel 5 to rotate clockwise, so winding up the tube 44 the base of which has been inserted in groove 4 in axle 3. Pressure on the lug 12 and part 1 brings a point 37 on the lever 10 in contact with an abutment 36 on the lever 18, so freeing the pawl 24 from the ratchet wheel 5 ; similarly the beam 13 presses outwards the abutment 39 on the lever 26, so freeing the pawl 32 ; the tube 44 may then be removed.
Patent GB-883437-A (GB)
Title: Heated windshield wiper blade
IPC: B60S1/38
Filed: 1958-04-16
Abstract: 883,437. Windscreen wipers. HAMM, J. A. April 16, 1958 [Nov. 1, 1957], No. 12174/58. Class 138 (1). An electrically heated windscreen wiper blade comprises an elongated body 52 of soft-rubber or like material having two spaced integral wiping elements 60 forming a channel through which heat is radiated on to the windscreen from an electric heating element 66 disposed in an axial bore 64 in the body 52. Spaced openings 62 expose the element 66 to the windscreen.