baber/WOPTO huggingface dataset:
Patent GB-191544-A (GB)
Title: Improvements relating to motor-cycle, cycle and analogous saddles or seats
IPC: B62J1/06
Filed: 1921-11-16
Abstract: 191,544. Brooks & Co., Ltd., J. B., and Lawrence, A. H. Nov. 16, 1921. Addition to 166,796. Saddles. - The resilient parallel-motion supporting-means for motor-cycle &c. saddles or seats described in the parent Specification is modified by the employment of two or three parallel-motion members consisting of one leaf spring and one or two rigid links or two leaf springs and one rigid link, arranged in upper and lower planes. The saddle top 1 is mounted on two semi-elliptic leaf springs 5 pivoted at 32 to a bracket 7 on the carrier, and on a single rigid link 9 disposed in the median line of the saddle and pivoted to a U-shaped bracket 33 on a bridge-piece 18 resting upon the platform of the carrier. In modifications, quarter-elliptic leaf springs are employed, and the springs are arranged either above or below the links. In constructions comprising a single spring and a single link, each is attached to the centre of a bridge-piece. Specification 183,332 is referred to.
Patent GB-759483-A (GB)
Title: Improvements in foldable masts
IPC: E04H12/18
Filed: 1952-12-02
Abstract: 759,483. Foldable masts. UDDEVALLAVARVET AKTIEBOLAG. Dec. 2, 1952 [March 11, 1952], No. 30578/52. Class 115. In a mast comprising an upper mast 1 and a stationary lower mast 2 foldably connected together by a hinging device, the upper mast 1 is at its lower end provided with quadrant-like levers 3 for the purpose of transmitting braking power when folding and hauling power when raising the upper mast, the levers being shaped so that when folding or raising the upper mast the load in the wire 18 transmitting power to the levers is constant. Between the foldable upper mast 1 and the stationary lower mast 2 there is provided a gas-tight packing so that when the mast is in its raised position it may be used as a ventilation duct.
Patent GB-520503-A (GB)
Title: Improvements relating to photographic cameras
IPC: G03B13/20
Filed: 1938-10-24
Abstract: 520,503. Photographic cameras with coupled range-finders. EVANS, W. E., (Settel, E.). Oct, 24, 1938, No. 30747. [Class 98 (i)] In a camera having a coupled objective and rangefinder, means are provided to enable the objective and rangefinder to be adjusted by pressure of a member on the camera against a portion of the operator's body. In an attachment for a known camera, the member may comprise a rack 30 extending rearwardly from the camera 10, and in driving connection with a pinion 42 on a shaft 46 carrying drums 43, 44 on which are wound the ends of a flexible cord 49 which passes round the lens barrel 14 of the camera and rotates it for focussing when the shaft 46 is rotated as a result of pressure of the user's forehead 26 on the near end of the rack 30. The shaft 46 is biassed by a coiled spring 54 to return the lens to the " infinity " position. A clamp may be provided to hold the rack in any desired position. According to the Provisional Specification, the rangefinder may be adjusted and the lens focussed by pressure on the rangefinder eyepiece.
Patent GB-300499-A (GB)
Title: Improvements in or relating to propelling means for aircraft
IPC: B64C11/00
Filed: 1928-10-24
Abstract: 300,499. Bratu, R. Nov. 12, 1927, [Convention date]. Propelling; cabins; tanks, arrangement and disposition of.-Monoplanes or biplanes are provided with three engines in the vertical plane of symmetry, one at the front of the fuselage, the other two in tandem above the plane 3 or lower plane. The two upper engines are enclosed in a cabin S accessible from the navigating cabin C, from which the engine M is also accessible. The common axis of traction of the upper engines is inclined at an angle of 80‹. Other engines may be symmetrically arranged on both sides of the upper engines. Petrol and oil tanks R may be replaced by seating accommodation. Petrol reservoirs are in any case provided in the central portion of the wing spread.
Patent GB-644891-A (GB)
Title: Improved process of preparing 7-dehydrosterol esters from 7-halogensterol esters
IPC: C07J9/00
Filed: 1947-11-21
Abstract: 7-Dehydrosterol esters, particularly 7-dehydrocholesterol esters, are prepared from 7-halogensterols by removal of hydrogen halides by means of 2 : 3 : 6- or 2 : 4 : 6-trimethyl pyridine or mixtures thereof, which are free from 3 : 5- and 3 : 4-dimethyl pyridine.  In examples: (1) 7-bromo-cholesterol benzoate, prepared by treating cholesterol benzoate with N-bromosuccinimide, is heated with 2 : 4 : 6-trimethyl pyridine and the resulting 7-dehydrocholesterol benzoate is hydrolysed with alcoholic potassium hydroxide to give 7-dehydrocholesterol; (2) 7-bromocholesterol acetate is treated with 2 : 4 : 6-trimethyl pyridine to give on hydrolysis 7-dehydrocholesterol; similar results are obtained when 2 : 3 : 6-trimethyl pyridine is used in place of 2 : 4 : 6-trimethyl pyridine.  Specification 574,432 is referred to.
Patent GB-769311-A (GB)
Title: Improvements in or relating to paint stripping appliances
Inventor: WELCH LESLIE CLAUDE
IPC: B44D3/16
Filed: 1953-11-09
Abstract: 769,311. Paint scrapers. SKARSTEN MANUFACTURING CO., Ltd., and SKARSTEN. A. R. Jan. 27. 1955 [Nov. 9. 1953; May 18, 1954], Nos. 30937/53 and 14608/54. Class 61 [Also in Group XI]  In a paint stripping appliance comprising an electric heater and a scraper rigidly connected to a common handle 14, the heater is detachably connected to the handle by a plug and socket connection. As shown the scraper blade 16 is of charinel form having a sharpened edge. A holder plate 15 is secured to the handle and set at an angle to the. longitudinal axis -thereof the plate having channelled. edge with which the blade interfits. The heater unit comprises a coiled wire heating element mounted on an insulated backing plate in a housing 21. A small mesh guard screen 36 is provided between the heater and work. Plug pins 19, 20 electrically connected to the heating element are caried by an insulator 18 mounted on the housing 21. The plug pins are inserted into a three pin socket inthe handle limb 13. The electric supply input to the tool is by way of a three pin socket (not shown) on to three pins 34 at the back of the handle, an operating switch 47 being provided. The heater is locked to the handle by a spring loaded catch 33 which engages a recess 32 in the plug pin 20. The heater has an adjustable leg 38 whichcontacts the work surface. The second Provisional Specification discloses also a heater and insulating plate detachably clipped to the housing.
Patent GB-404992-A (GB)
Title: Improvements relating to bore hole pump equipments
IPC: F04D13/10
Filed: 1932-04-19
Abstract: 404,992. Deep-well pumps. POTTER, A. C., Dysart Road Ironworks, Grantham, Lincolnshire. April 19, 1932, No. 30995/33. Divided on 404,993. [Class 110 (i).] A support for pump equipment 46 is adjustably mounted within the bore hole casing 35 and comprises a ring 36 carrying a series of wedge members 38 which, when moved upwardly by contact with an abutment removably supported in the casing, grip the casing and compress a packing ring 41 into contact therewith. Further packing rings 43 are provided between a metal ring 42 and a ring 45 supporting the pump 46. The wedges may carry springs 38a adapted to engage a recess 37a in the casing.
Patent GB-226955-A (GB)
Title: Improvements in attachment for teeth
IPC: A61C13/267
Filed: 1923-12-10
Abstract: .226,955. Craigo, J. M. Dec. 10, 1923. Teeth, artificial; teeth, regulating. - A clip for securing a denture or orthodontic appliance to a natural tooth comprises arms 10 connected to the plate and extending on each side of a tooth, each arm having forwardly and rearwardly extending fingers 11, 12 which embrace the tooth. One or both of the fingers may be bent as at 13 to form an extension which rests on the upper surface of the tooth. The arms 10 may have separate extensions or tangs 15 which are secured in the material of the plate or may be connected by a loop 16 which is so secured.
Patent GB-1246745-A (GB)
Title: Pin cushion correction for television display arrangements
IPC: H04N3/237
Filed: 1969-06-19
Abstract: 1,246,745. Cathode - ray tube circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 June, 1969 [22 June. 1968], No. 31022/69. Heading H4T. In an arrangement for modulating the field deflection sawtooth current wave of a television display tube by a parabolically varying function recurrent at line deflection frequency (e.g. for pincushion distortion correction) the field deflection coil is arranged to form part of a resonant circuit the resonant frequency of which is lower than the line frequency (about 1/5 of the line frequency) and such resonant circuit is connected to the field deflection sawtooth voltage drive by means of a bi-directionally conducting electronic switch which is closed during line fly-back periods. With this relationship between the resonant frequency and the line frequency the resonant circuit "rings", for only a fraction of the line period and thus only a small portion in the vicinity of the peaks of the resultant sine (or cosine) wave, which is a close approximation to a parabola, is effective as the modulating signal. Fig. 1 shows one embodiment in which the field deflection coil 4, an adjustable inductance 5 (for adjusting the amplitude of the "parabolic" wave) and a capacitor 3 form a resonant circuit having a resonant frequency of about 1/5 line frequency. This circuit is connected via a bidirectionally conducting electronic (e.g. a triac) 2 and a second circuit 6, 7 resonant of about 2 x line frequency, to the field deflection sawtooth voltage generator, the switch 2 being rendered conducting by line fly-back pulses 9 derived from the line output stage 8. The capacitor 7 limits the voltage across the switch 2, when the latter opens, to prevent damage thereto and in order to cause the current to flow in one direction through switch 2 during the entire line flyback period the resonant circuit formed by capacitors 3 and 7 and coils 4, 5 and 6 is adjusted by means of coil 6 to have a period equal to twice the line fly-back period. Fig. 2 shows the voltage and current variations during a field period TV (assumed here to comprise only 15 line scans). In a second embodiment the coils 4 and 5 and capacitor 3 form a series resonant circuit having a resonant frequency (as with the arrangement of Fig. 1) equal to about 1/5 line frequency and the period of the resonant circuit including capacitors 3 and 7 and coil 6<SP>1</SP> is equal to twice the line fly-back period. With this arrangement the resonant circuit including coil 6<SP>1</SP> causes the voltage across capacitor 3 to reverse its polarity during line fly-back periods (i.e. when switch 2 is closed) so that the required "parabolic" component is produced.
Patent GB-170769-A (GB)
Title: Improvements in or relating to welted boots and shoes
IPC: A43B9/04
Filed: 1920-11-03
Abstract: 170,769. Marlow & Sons, Ltd., J., Hutton, P., and Chapman, G. H. Nov. 3, 1920. Connecting uppers to insoles and soles.-In themanufacture of a welted boot, the upper a is split upwardly along its edge to a depth of about an inch, and the inner portion a<2> is turned inwards and secured, together with a welt d, to a channelled insole c, a rubber strip e being provided on. the upper face of the welt to render the welt stitching f waterproof. The outer portion a' of the upper is turned outwardly over the welt, and after the usual bottom filling i has been secured, a rubber sheet j, covering the welt and the filling, is applied. The outer sole k is then secured by stitching l which passes through the outer edge of the sole k, the rubber sheet j, welt d, rubber strip e, and the outwardly projecting flange a<1> of the upper.
Patent GB-603984-A (GB)
Title: Improvements in metal bushes or sockets
IPC: F16B37/12
Filed: 1945-11-20
Abstract: 603,984. Clinch-nuts. HALL & KAY, Ltd., HALL, J. H., and HALL, S. Nov. 20, 1945, No. 31111. [Class 89 (i)] Tapped bushes 5 are secured in holes in metal or timber 10 by clinching over at 13 a countersunk end saw cut &c. at 9. The exterior may be serrated to increase the grip. The other end has a head 6 to fit flush in a countersink and is serrated at 7. The clinched end may be indented, scored, partly cut through or otherwise weakened instead of being saw cut. Specifications 348,631, 370,948, 409,458 and 471,413 are referred to.
Patent GB-332476-A (GB)
Title: Improvements in key-boards for typewriters and like machines
IPC: B41J5/10
Filed: 1929-10-14
Abstract: 332,476. Marloth, K. Oct. 14, 1929. Keyboards; finger-guides.-The keys a are as shown in the Figure, divided into two groups consisting of straight rows at right-angles to the natural positions of the forearms. Finger-guides c may be provided.
Patent GB-776456-A (GB)
Title: Automatic fire alarm
IPC: G08B17/06
Filed: 1954-10-29
Abstract: 776,456. Automatic fire alarms. SAMSON, G. A. Oct. 27, 1955 [Oct. 29, 1954], No. 31236/54. Class 118 (1). A fire alarm comprises a copper wire A spring- tensioned at B, which wire when heated expands to make contact with a post F and complete an alarm bell circuit. A ball G on the wire A may be used to operate a clockwork bell.
Patent GB-965925-A (GB)
Title: Improvements in or relating to 1,2,4-oxadiazole derivatives
IPC: C07D271/06
Filed: 1961-08-30
Abstract: The invention comprises carbamates of the general formula: <FORM:0965925/C1/1> (wherein X represents a hydrogen or halogen atom or an alkoxy group and A and B each represent a hydrogen atom or a C1- 4 alkyl group), and the preparation thereof by reacting a compound of the general formula: <FORM:0965925/C1/2> with phosgene and reacting the resulting chloroformate with ammonia or a mono- or di-alkylamine (HNAB).  The products have sedative, analgesic and anti-inflammatory properties.
Patent GB-303618-A (GB)
Title: Improvements in or relating to capsules for receptacles and capsuling apparatus therefor
IPC: B67B1/10
Filed: 1927-11-21
Abstract: 303,618. Pinchin, Johnson, &. Co., Ltd., and Brown, C. H. Nov. 21, 1927. Capsules and the like, applying. - Relates to securing internal capsules in the necks of containers by radially expanded segmental jaws actuated by levers. According to the invention pressure is exerted on the top of the capsule by segmental stops 9, 10 and opposed pressure is exerted on the expanded part of the capsule by the edges 6, 6<a> of the jaws 1, 2 during the sealing operation. The jaws 1, 2 move both in a radial and an axial direction relative to the capsule, and are formed integrally with the operating levers 4, 3. The limit of possible expansion of the jaws is determined by the stops 9, 10. A resilient lining may be used with the capsule.
Patent GB-446237-A (GB)
Title: Improvements in and relating to guards for machinery
IPC: F16P1/02
Filed: 1935-11-12
Abstract: 446,237. Sewing-machines. STEVENSON & SONS, Ltd., H., and SMITH, E., Victoria Mills, Pollard Street, Manchester. Nov. 12, 1935, No. 31299. [Class 112] [See also Group XXIV] In machines of the type having a stationary head in which reciprocates stitching, stapling or like mechanism, the hands of the operative are preserved from injury by a plate 7 attachable to the head 1 and having an opening through which the said mechanism works. The shape of the opening corresponds to that of the mechanism and the plate is rounded in outline as shown. The guard is secured by bolts 11 or by spring clips. The passage of the material 6 beneath the guard is facilitated by spring-pressed balls 17.
Patent GB-305736-A (GB)
Title: Improvements in or relating to pistols or other weapons suitable for the slaughtering of cattle or other animals
IPC: F41C23/00
Filed: 1927-11-22
Abstract: 305,736. Accles, J. G. Nov. 22, 1927. Slaughtering.-A slaughtering-pistol is attached to an extension handle in such a manner that it can be detached without dismantling it in any way, the pistol then being usable without the handle. As shown in Fig. 1, the handle a carries two L-shaped plates b which are closed at the front and rear by channel members c, d. The handle is bifurcated at its end to accommodate a bell-crank lever e which is connected to a rod h running axially through the handle and ending in a loop j, Fig. 2. A member g combined with the rod h, slides in a boring in the end of the handle a. The pistol k is shown without a trigger guard, but a guard may be provided, in which case the lever e is cranked laterally to engage the trigger o without fouling the guard. The grip portion of the pistol is clamped between the plates b by a bolt l which may have a leather sleeve, and is tightened by a wing nut. When a trigger guard is provided, one of the plates b is hinged to the handle to permit, insertion and removal of the pistol. The rod h is pulled, to fire the pistol, against the action of a spring n. In a modification, a substantially straight pistol having no grip portion is clamped in a contractile socket at the end of an extension handle. The axial rod h operates a laterally projecting straight lever which disengages a detent lever on the pistol from a shoulder on the spring-impelled firing pin. The spring n may be dispensed with in this modification. The handle may be formed from a rectangular sectioned piece of wood, the passage for the rod being formed by slotting one of the faces and filling in the outer part of the slot by a strip of wood secured to the handle by screws.
Patent GB-279666-A (GB)
Title: Improvements in or relating to luncheon or picnic cases or baskets
IPC: A45C11/20
Filed: 1926-12-10
Abstract: 279,666. Brookes & Sexton, Ltd., and Brookes, T. J. W. Dec. 10, 1926. Luncheon and picnic baskets and cases. - A skeleton framework for positioning eating and drinking utensils and the like within a luncheon or picnic case or basket is constructed from lengths of strip metal arranged in the manner illustrated.
Patent GB-471651-A (GB)
Title: An improved road-making material
IPC: C08L95/00
Filed: 1936-11-16
Abstract: A road-surfacing material comprises a mixture of blown bitumen with a volatile solvent such as kerosene, creosote oil or tar oil, the mixture containing about 75 to 87,5 per cent of the blown bitumen and being of such a consistency that it will just pour when cold.  The heated mixture may be sprayed on to a road surface or used to coat stone chippings to make a road surface composition.  Specification 373,769 is referred to.
Patent GB-1437746-A (GB)
Title: Air depolarized electric cell
IPC: H01M50/533
Filed: 1974-07-16
Abstract: 1437746 Metal-air cell SAFT-SOC DES ACCUMULATEURS FIXES ET DE TRACTION 16 July 1974 [1 Aug 1973 6 May 1974] 31503/74 Heading H1B A cell comprises a positive air electrode 13 having an axial bore 20 receiving a helical wire current collector 1, the turns of the helix being at least partly embedded in the wall of the bore as shown in Fig. 2. A rectilinear extension 2 of the helix is welded to a terminal 8 and the smaller diameter end turn 3 is embedded in the electrode 13. The negative electrode 10 comprises zinc powder suspended in KOH and/or NaOH gel and the electrolyte 11 comprises gelled KOH and/or NaOH. The electrolyte is protected by a layer of pitch 12 and by a washer 14 supporting a pitch layer 15. At least the surface of the wire 1 comprises nickel, nickelplated copper, nickel-plated iron or stainless steel.
Patent GB-1380001-A (GB)
Title: Extraction of a soluble compound or soluble compounds from a  solid material
IPC: G01N25/14
Filed: 1972-07-05
Abstract: 1380001 Making extracts CEYLON INSTITUTE OF SCIENTIFIC & INDUSTRIAL RESEARCH 5 July 1972 31538/72 Heading B1Q Solid in filter paper thimble 6 is extracted by liquid condensing in condensers 4 and 5. Liquid in evaporator flask is boiled so that the vapour pushes up thimble 6 and passes into condensers 4 and 5 where the vapour condenses and passes backinto thimble 6. When the level of the condensed liquid -in thimble 6 reaches the bottom 19 of the condenser 4, the vapour from evaporator 1 forces its way through the liquid into the condenser 4 thus causing vigorous agitation in thimble 6. Heating of the liquid in evaporator flask 1 is stopped when the thimble is full of liquid, so that the vacuum that is thus created in evaporator 1 causes liquid containing extract to be drawn through the wall of the thimble into evaporator flask 1.
Patent GB-300795-A (GB)
Title: Improvements in or relating to stuffing boxes
IPC: F16J15/16
Filed: 1927-11-23
Abstract: 300,795. Sulzer FrÞres Soc. Anon., and Hoppler, H. Nov. 23, 1927. Boxes; brushes; glands; packing, metallic; cooling. - In a stuffing-box for high-pressure engines &c., two packing and guiding members 12, 20 are separated by a lantern sleeve 22. The packing 20 is coned to fit a corresponding seating in a casing 2 secured by bolts 31. The packings, which may be of white metal and may be undivided, or split, are pressed axially by means of a screw cap 13, beneath which are placed a spherical washer 27 and a follower 26. Lubricating and cooling liquid is admitted by a passage 10 to the lantern 22 and is discharged by a passage 11.
Patent GB-1081730-A (GB)
Title: Ceramic materials
IPC: C04B35/632
Filed: 1966-07-14
Abstract: The process of Specification 987,841 for producing ceramic materials by dry grinding a raw batch comprising a particulate ceramic material and up to 6% by weight of an organic deflocculating agent is improved by including the steps of mixing the product of the dry grinding with water and spray drying the resulting ceramic-water mixture before shaping and firing the ceramic powder to form a sintered ceramic body.  The ceramic material may be a single metallic oxide (e.g. Al2O3, BeO) or a mixture of oxides optionally containing small amounts of fluxing ingredients.
Patent GB-845183-A (GB)
Title: Improvements to pressure exchangers
IPC: F04F13/00
Filed: 1956-05-05
Abstract: 845,183. Pressure exchangers. PEARSON, R. D. April 26, 1957 [May 5, 1956], No. 31689/55. Drawings to Specification. Class 8(1). In a pressure exchanger, low pressure scavenge flow is aided by the discharge of gas from a nozzle into the low pressure scavenging or prescavenging intake duct. The nozzle may be controlled by a valve, spring urged to the open position and subjected to the pressure in the gas supply duct which tends to close the valve. Specifications 57773/54 and 803,659 are referred to.
Patent GB-976560-A (GB)
Title: Mixing device
Inventor: ROTH ERNEST ROBERT
IPC: B01F7/00
Filed: 1962-08-17
Abstract: <PICT:0976560/C1/1> <PICT:0976560/C1/2> An aerating stirrer comprises a central hollow hub portion 10 rotatable by a shaft 11 and having hollow blades 13 (as shown, there are twelve blades arranged in six pairs) which have openings of variable width at their outer ends and in communication with the hollow interior of the hub by way of slots 17.  The blades may each consist of a fixed vane 14 and a pivoted vane 15 which need not be joined along their edges.  In operation, the device may be partly or wholly immersed; a trunk 25 may surround the shaft 11. The vane inclinations may be adjusted individually by manually-operated linkages as shown, or automatically as by a servo mechanism responsive to the power consumption of the drive motor or the oxygen content of the liquid.
Patent GB-761779-A (GB)
Title: Improvements in sealing means between two relatively-movable parts
Inventor: MARTIN ERHARD
IPC: F16J15/32
Filed: 1953-11-17
Abstract: 761,779. Piston packing; stuffing-box substitutes. DUNLOP RUBBER CO., Ltd. Nov. 9, 1954 [Nov. 17, 1953], No. 31808/53. Classes 122 (1) and 122 (5). Sealing means between two relatively movable parts, for example a piston 1 and its cylinder 3, comprises a pair of endless resilient rings 4, 5 arranged in an annular groove 2 in one of the parts 1 so that one ring 5 is urged both against one side of the groove and the other part 3 by the other ling 4 and means, such as a dished gauze annulus 6, to allow pressure fluid to pass behind the one ring 5 and force it radially outwards against the other part. The rings are both preferably of rubber of circular cross-section and the ring 5 is pressed against the cylinder by the ring 4, which may be an annular helical wire coil, with only sufficient force to prevent leakage of lowpressure fluid. The groove may be in the cylinder instead of in the piston, as shown.