baber/WOPTO huggingface dataset:
Patent GB-697021-A (GB)
Title: Torque thrust control device for power screw-drivers and the like
IPC: F16D43/206
Filed: 1950-09-15
Abstract: 697,021. Yielding-drive attachment for screwdriving or drilling. AMERICAN SCREW CO. Sept. 15, 1950 [Sept. 28, 1949], No. 22783/50. Class 83 (iii). [Also in Groups XXIII and XXIV] A torque - thrust control attachment for rotary tools, such as hand or power - driven screwdrivers or wrenches or for brace - type drills comprises a clutch 20, 25 which is engaged only when the axial thrust on the tool 17 exceeds a predetermined ratio to the torque to be applied and ensures that the tool does not rotate unless a predetermined minimum end thrust on the tool is maintained, to ensure proper engagement with the work. The device is preferably used in conjunction with a normal type of torque-limiting clutch. A snap ring 18 holds the screw-driver bit 17 in a non-circular recess in a socket 14 which is slidable within the body 12 of the device and has several slots 25 of which the forward or driven walls are inclined at an angle related to the desired end-thrust. The socket is normally maintained in its lower disengaged position by a spring 23 surrounding a stud 24 but when end thrust is applied to the tool, the body moves down until balls 20 in tapered holes 19 engage the slots 25 and drive the socket. If the end thrust is reduced below the predetermined minimum or entirely removed, the balls will ride up the inclined walls of the slots and disengage from the socket. The balls 20 may be replaced by pins with rounded ends.
Patent GB-533509-A (GB)
Title: Treatment of sea water and the like
IPC: C01F5/22
Filed: 1939-08-08
Abstract: 533,509. Treating sea water &c. OCEAN SALTS (PRODUCTS). Ltd.. and ADAMS, B. A. Aug. 8, 1939, No. 22863. [Class 1 (iii)] In a process for the production from sea water &c. of magnesium compounds free from or low in calcium compounds, the sea water is first treated to precipitate calcium, the treatment including the addition of hydroxyl ions to account for the small amount of calcium present as bicarbonate. Sodium, magnesium or calcium hydroxides, or magnesium or calcium oxides, in solid form or as solutions or suspensions in water or sea water are thus added prior to, or during, or after the precipitation of the calcium. The said precipitation may be effected by sodium carbonate or magnesium (bi) carbonate, the precipitant being used in solid form, or in solution, or suspension in fresh or sea water, or in sea water from which calcium and/ or magnesium have been extracted. The magnesium carbonate may be synthetic, or natural, e.g. soft, porous magnesite or dolomite, the sea water being passed through a bed of these materials. Otherwise, the calcium carbonate precipitated is removed by sealing or filtering preferably after seeding with previously precipitated calcium carbonate.
Patent GB-316229-A (GB)
IPC: F27D99/00
Filed: 1929-07-25
Abstract: 316,229. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 25, 1928, [Convention date]. Furnace details.-In a furnace heated by fuel and electricity the fuel and the current supply are controlled by separate temperature responsive regulators. The electric heaters are divided into groups, each group being controlled by a separate regulator. The fuel regulator is set to maintain a lower temperature than any of the current supply regulators. The fuel used may be gas and may supply the bulk of the heat.
Patent GB-287394-A (GB)
Title: Improvements in or relating to rotary duplicators and similar manifolding machines
IPC: B41L19/00
Filed: 1927-08-31
Abstract: 287,394. Zeuthen, O. L. Aug. 31, 1927. Stencil-printing apparatus; rotary machines. - A duplicating machine of the type comprising a rotary drum 6 carrying a stencil or a printing- surface, or comprising a stencil mounted on endless bands passing over a pair of rollers, is provided with sheet-feed and sheet-delivery tables 15, 17 respectively so arranged with respect to an impression roller 10 co-operating with the drum that the sheet follows a U-shaped path and is delivered with the plain side facing the fed-in sheets. As shown applied to a rotary stencil duplicator comprising a perforated metal or wire gauze segment rotated directly by a hand-crank 5, the feed table 15 is curved towards the impression roller 10, and the sheets are moved up to stops 8 on a flat surface 7 on the drum, the crank meanwhile being in the position of rest behind a resilient stop 14. On rotating the crank, the sheet is carried forward by the drum 6 and roller 10 and falls by its own weight or is guided by strippers 16 on to the table 17. The positions of the feed and delivery tables may be reversed. Inking-apparatus.-Ink is applied by hand to the interior of the drum, and is spread by placing an ink-distributing roller 19 normally resting in bearings in the machine frame into bearings 20 so as to bear against the inside surface of the segment, and then rotating the drum 6 backwards and forwards. Tripping-arrangements.-The impression roller 10 is carried by arms 11, and is pressed up to the drum 6 or released by turning levers 12 by hand.
Patent GB-587375-A (GB)
Title: Improvements relating to refrigeration apparatus
IPC: F25B41/04
Filed: 1944-11-18
Abstract: 587,375. Refrigerating. GENERAL MOTORS CORPORATION. Nov. 18, 1944, No. 22932. Convention date, Nov. 20, 1943. [Class 29] In refrigerating apparatus having a fixed restrictor, e.g., a capillary tube 38, between the condenser 32 and the evaporator 26, the flow through the restrictor is regulated by heat exchange with hot refrigerant gas in a bye-pass line 42 to partially vaporise the refrigerant passing through the restrictor. Gas from the inlet side of the condenser is bye-passed through the pipe 42, having a valve 48 controlled by a thermostat 50, to a casing 44 surrounding the pipe 36 containing the restrictor 38 between the condenser and the evaporator. A fixed restrictor 46 connects the bye-pass pipe to the suction pipe 40 of the compressor 28. The invention is shown applied to an air conditioning system in which air from a room is drawn through an inlet 20, passed over the evaporator by a fan 11 and returned to the room through an outlet 14, fresh air being drawn in at 18. Dampers 22, 24 regulate the air flow. The compressor motor is regulated by a room thermostat 52. The heat interchanger 44 .may surround the restrictor 38.
Patent GB-1017686-A (GB)
Title: Slider for sliding clasp fastener
Inventor: WEATE SAMPSON ARTHUR
IPC: A44B19/30
Filed: 1964-06-03
Abstract: 1,017,686. Sliding clasp fasteners. LIGHTNING FASTENERS Ltd. June 3, 1964, No. 23006/64. Heading E2S. A slider for a sliding clasp fastener comprises a slider body 1 with an inverted trough like cap member 7 rigidly mounted on the upper surface of the body, an inverted substantially U- shaped resilient locking member 12, biased into its locking position and housed partly within the cap, and a pull member 11 arranged so that the locking member 12 straddles a cross bar 10 on the pull member to enable it to move one leg 14 of the locking member out of locking engagement between two successive coupling elements of the sliding clasp fastener, the other leg 15 of the locking member being secured to the slider body independently of the cap member. One leg 14 of the locking member passes through a hole 13 in the upper portion 2 of the slider body while the other leg 15 is secured in a hole 16 in the neck portion 4. The leg 15 has a sharp bend 17 around which the material of the body is swaged.
Patent GB-225946-A (GB)
Title: Metal clip for holding open in any position flat hinged covers of sweetmeat and other boxes
IPC: B65D43/24
Filed: 1923-09-14
Abstract: 225,946. White, F. L. Sept. 14, 1923. Stays.-A clip device a for holding in the open position the lid of a sweetmeat or other box comprises a leg portion b with a foot portion c adapted to engage the outer face of the lid or the back of the box and thereby give added support to the lid. To position the device to hold the lid open the clip device a is engaged with the side of the lid d and moved until the part e engages the back e of the box, as shown in Fig. 2. Other clip device may be inserted into the edge of the lid, or into the rear portion of the box: or it may be attached to one end of the box and its foot portion bent inwards to engage the outer face of the lid when the latter is opened.
Patent GB-207268-A (GB)
Title: Improvements relating to sound directing devices such as gramophone trumpets
Filed: 1922-08-24
Abstract: 207,268. Stoney, C. M. Aug. 24, 1922. Drawings to Specification. Sound magnifying and directing appliances.- A gramophone horn composed of metal is coated and/or lined with petroleum bitumen which may be applied by forming a layer on paper, warming it to soften it, wrapping it round the horn and causing it to adhere by applying pressure.
Patent GB-306385-A (GB)
Title: Process for obtaining bornyl and isobornyl esters
IPC: C07C35/30
Filed: 1928-08-10
Abstract: 306,385. Schmidt, L. Feb. 18, 1928,. [Convention date]. Bornyl and isobornyl esters are obtained from pinene or oils containing pinene by a two-stage process comprising first a treatment with an organic acid anhydride-boric acid mixture containing these constituents in the approximatemolecular proportions of 3: 1 and in quantity which is not sufficient for obtaining the maximum possible yield in the esterification of thepinene, followed by treatment of the product with the organic acid, preferably in a measured excess. This two-stage process results in a yield which is 15-20 per cent higher than that obtained by effecting the esterification in a onestage operation. The process is illustrated in an example using French oil of turpentine, acetic anhydride-boric acid and glacial acetic acid, the resulting acetates being purified and saponified. The Specification as open to inspection under Sect. 91 (3) (a) also includes the esterification of. pinene or oils containing pinene with the above organic acid anhydride-boric acid mixture in quantity sufficient to obtain the maximum yield of ester, and contaings a further example ilustrating such process. This subject-matter does not appear in the Specification as accepted.
Patent GB-1332979-A (GB)
Title: Hydraulic servo actuator more particularly for steering systems
IPC: F15B9/10
Filed: 1971-04-19
Abstract: 1332979 Steering systems BENDIX CORP 19 April 1971 [20 March 1970] 23148/71 Heading B7H [Also in Division G3]  In a power steering system comprising a power steering unit 16 and a means for generating fluidic steering control correction signals 36 the corrective signals are transmitted via an hydraulic servo actuator 42 to the pitman arm 18 and drag link 22. The actuator consists of a servomotor 46 and valve assembly 44, the motor incliding a piston 86 in a housing 88 and dividing the housing into chambers 96, 98, and the valve including an open centre spool 68 biased by a centring spring 108. A leaf spring 100 provides mechanical feed back between the spool and piston, and the chambers 96, 98 are supplied with fluid from the unit 16 via inlet and outlet ports 48, 54; an annular groove 94 ensures communication at all times between chamber 96 and inlet 48. On generation of a corrective signal at 36 fluid supplied through line 38 or 40 moves the spool 68 and the resulting difference in supply of fluid to the chambers 96, 98 causes the piston to be moved accordingly.
Patent GB-983033-A (GB)
Title: Improvements in or relating to copying lathes
Inventor: BREBANT CHARLES
IPC: B23Q35/18
Filed: 1963-06-11
Abstract: 983,033. Lathes. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 11, 1963 [June 15, 1962], No. 23193/63. Headings B3B and B3T. A remotely controlled copying lathe for machining radio-active material &c. (not shown) comprises a carriage moved hydraulically along guide-tubes 9 and disposed behind the spindle 2, copying apparatus 4 on the carriage, and a template 15 on a support 16 rotatable about a horizontal axis to set the depth of cut at each pass or to produce a perpendicular shoulder on the work. The hydraulic copying apparatus 4 is angularly adjustable on the carriage 5 and carries a tracer 14 at the top and an adjustable tool-head 12 with a tool 12<SP>1</SP> above the work. Rotation of the support 16, which normally remains stationary during a copying-pass, is through a reduction gear (not shown) or a manual control 17. A dial 19 indicates the position of the template 15. A variable-speed drive for the spindle includes an electromotor 6<SP>1</SP>, a gear-box 6<SP>2</SP> with a speed-indicator 8, a conical coupling and an electromagnetic clutch 7. Flexible bellows 22 cover the tubes 9, and stops 11 limit movement of the carriage. A lever 13 may control advance of the copying apparatus 4 to bring the tracer 14 up to the template 15. Position of the carriage may be given by a pointer 5<SP>1</SP> and a scale 1<SP>2</SP>, or by a comparator 18.Coolant supplied through a conduit 21 is collected by a trough 20<SP>1</SP>, 20<SP>2</SP> having a filter leading to a pump. Controls are connected to the lathe at 24.
Patent GB-523831-A (GB)
Title: Improvements relating to circuit arrangements for magnetic scanning in cathode ray tubes
IPC: H03K4/39
Filed: 1938-08-05
Abstract: 523,831. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., and MYNALL, D. J. Aug. 5, 1938, No. 23212. [Class 40 (v)] When a low-impedance magnetic deflecting- coil 5, Fig. 2, is used to control the scanning stream of a cathode ray tube, it is necessary to insert a transformer 20, between it and the output of the supply valve 4. According to the invention, distortion of the saw-toothed current, due to the shunt effect of the transformer 20, is corrected by inserting a filter circuit 14, 15, 16 between the gas-filled oscillation-generator 2 and the grid of the amplifying valve 4 which has a constant-current or pentode characteristic. The filter circuit increases the amplitude and retards the phase of the lower-frequency components of the sawtoothed voltage, thereby offsetting the shunt effect on these components of the transformer 20, and restoring the current flowing in the deflecting coil 5 to its correct form. Fig. 3 shows a modified form of filter-circuit designed to avoid any speeding-up in the middle of the scan that may be introduced by the simpler arrangement of Fig. 2. Specification 514,170 is referred to.
Patent GB-593477-A (GB)
Title: Improvement in vulcanized furfuryl alcohol resins
IPC: C08L71/14
Filed: 1944-11-23
Abstract: Furfuryl alcohol or polyfurfuryl alcohol obtained by heating furfuryl alcohol with an acidic catalyst such as boron fluoride, is mixed with sulphur or a sulphur containing vulcanization agent and heated. Polyvinyl butyral may be added either to the composition or prior to polymerization.  Volatile solvents such as ethyl ether may be added. Dithiocarbonates, zinc benzothiazole sulphide, zinc oxide and carbon black may be used in vulcanizing. The products may be moulded or the composition may be used as a coating and then heated.
Patent GB-1141443-A (GB)
Title: Doppler target simulator
IPC: G01S7/40
Filed: 1967-05-19
Abstract: 1,141,443. Radar simulators. SIERRA RESEARCH CORP. 19 May, 1967 [15 June, 1966], No. 23421/67. Heading H4D. The Specification describes, for a doppler radar R, an arrangement simulating a moving target, complete with doppler phase shift. The transmitted signal is received by horn 10 from the radar and passed, via waveguide 12, to a phase shift section 14 comprising a plurality of ferrite rods and surrounding windings energized by a sawtooth wave from driver 30. The phase shifted signal passes into a circulator 18 via arm 18a and after reflection by short-circuited arms 18b and 18c, emits from the circulator via arm 18a for a second phase shift, in the same direction of the first, in section 14. The twice phase shifted signal is then returned to the radar. By making the first and second phase shift equal to 180 degrees, the simulated doppler frequency shift is equal to the frequency of the sawtooth from driver 30. In a second embodiment, Fig. 2, the signal leaves the circulator by arm 18b to a microwave amplifier, and the amplified signal re-enters the circulator by arm 18c.
Patent GB-1325779-A (GB)
Title: Method of drawing a flexible electrical conductor into a  section of permanently installed conduit
IPC: H02G1/08
Filed: 1971-04-19
Abstract: 1325779 Pull-through cables L HALAMA [trading as A OCKERT and O WENNERSTROM] 19 April 1971 [10 June 1970] 23437/71 Heading F2N A flexible elongate member for drawing a flexible electrical conductor into a section of permanently installed conduit has at least its outer surface made of plastics material and an opening, e.g. an eyelet, at one end. The inner core of the cable may be made of metal, e.g. steel. Alternatively the member may be made wholly of plastics. The member may be oval or circular in cross-section. The leading end of the member may be provided with a ball head to facilitate the advancement of the member through the conduit with ease. The trailing end of the member is provided with the eyelet, &c., to which the electrical conductor is attached.
Patent GB-684910-A (GB)
Title: Process for the after-treatment of frosted glass surfaces
IPC: C03C17/32
Filed: 1951-10-09
Abstract: 684,910. Treating frosted glass. DEUTSCHE LIBBEY-OWENS-GES. FUR MASCHINELLE GLASHERSTELLUNG AKT.-GES. Oct. 9, 1951 [Nov. 16, 1950], No. 23482/51. Class 56. [Also in Group XV] The cavities, cracks &c. in sand-blast frosted glass surfaces resulting from the frosting process are filled with translucent natural or synthetic resins, plastics or the like. This treatment prevents spotting which is due to the penetration of impurities into the cavities. The glass surface is preferably treated with a solution of the resin &c. in a suitable solvent which shows good wettability towards glass, but emulsions of synthetic resins &c. or fluid synthetic resins &c. e.g. in the form of pre-polymerides, may also be applied and allowed to harden. The synthetic resins &c. are preferably related to glass in their optical properties, and may be coloured or uncoloured, and insoluble in water. The concentration of the solution of the synthetic resin &c. is such that it will fill up the cavities but will not produce a complete film, but if necessary the glass is subsequently cleaned with one solvent to remove any film. The solution may be applied by immersion, spraying, or brushing &c. Patterns can be produced by using stencils so that a part only of the glass surface is treated.
Patent GB-833581-A (GB)
Title: Improvements in or relating to applicators for nail-varnish removers
IPC: A45D29/00
Filed: 1957-07-24
Abstract: <PICT:0833581/III/1> An applicator for applying nail varnish remover to finger or toe nails comprises a container 8 having a closure 11 and a compressible, absorbent lining 9 on part at least of the side walls which is charged with the varnish remover.  The lining 8 may be felt or foam rubber in single or multi-layer arrangement, e.g. felt on foam rubber, and may extend over all the inner faces of the walls of the container or may be separated by a partition 13 from an absorbent or non-absorbent layer 12 which is unchanged and serves as a wiper.  The container may be hemi-spherical as shown, rectangular, frusto-conical or cylindrical, the side walls of the cylinder being lined with the absorbent material, and the container may be of a resilient material or of a rigid material, e.g. plastic or metal, and a reservoir may be incorporated in the device, e.g. in the closure where the container is annular, or between the bottom of the container and the lining, a suitable channel or duct being provided between the reservoir and the lining.  Bristles may be incorporated in the absorbent material.
Patent GB-1134595-A (GB)
Title: A method of taking dental impressions
IPC: A61C9/00
Filed: 1967-05-22
Abstract: 1,134,595. Taking dental impressions. H. D. NORTON. 30 May, 1967 [22 May, 1967], No. 23550/67. Heading A5R. A method of taking dental impressions of teeth and surrounding tissues comprises taking a first impression using an impression tray containing plaster of Paris covered with a sheet of foam rubber, removing the sheet, placing rubber 'base impression material in the impression in the plaster of Paris and then taking a second impression in the rubber base impression material which is held firmly in the plaster of Paris. The plaster of Paris with the first impression in it may be used without the impression tray for taking the second impression and may be electrolytically copper or silver plated.
Patent GB-240819-A (GB)
Title: Improved mechanism for metal-working machines
IPC: B21D22/00
Filed: 1925-09-21
Abstract: 240,819. M. B. Rail Anchor, Ltd. Oct. 6, 1924, [Convention date]. Metal-working presses; rolling; welding.-In metalworking machines for bending, punching, pressing. upsetting, cutting, or shearing a reciprocating block is provided with two oppositely directed pawls adapted to be engaged respectively with two laterally adjacent oppositely directed sets of teeth on a sliding tool carrier for moving the latter stepwise backwards or forwards; or both pawls may be engaged for giving the tool carrier a reciprocating movement. An eccentric 5 on the mainshaft 6 actuates a slide block 3 by means of the connecting-rod 4, the block 3 carrying a pivoted pawl 7 co-acting with a rack 10 on a slide 1 carrying the tool 2 so that the tool is advanced one tooth for each reciprocation of the block 3. When the working stroke is completed, the pawl 7 may be lifted and another pawl 12 engaged with a reverse rack on the slide 1 for returning the tool to its starting point. With both pawls in engagement the tool may be actuated non-progressively. Additional eccentrics may be provided on the shaft 6 to actuate other tool slides alongside the slide 1. On the other end of the machine. a forked connecting-rod 22 worked by extensions 23 of the eccentric 5 reciprocates a slide block 24 acting through a counter-balanced wedge 26 to advance a tool carrier 25 step by step. The wedge is guided by lugs 27 engaging in recesses 28 in the block and tool carrier, and descends by gravity on each backward movement of the block 24. A forked bracket 32<A> may be engaged with the suspension chain 30 of the wedge to hold the wedge stationary. Work-holding jaws 15 are actuated automatically by a sliding wedge 44 carried by a rod 45 moved by a cam 46 on the main shaft 6, a spring 47 keeping the rod up to the cam. Another eccentric 33 on a lateral extension of the main shaft may actuate a vertical connecting-rod and tool holder for smaller work. A further extension of the main shaft carries a roller 35 coacting with a lever-mounted roller 36 operated by a pedal-lever 37 for rolling or welding. Fig. 12 shows a further tool-carrier 43 actuated by a connecting-rod 42 and variablethrow crank 41 which has a rack face adjustably secured by a screw 41<A> in a toothed slot in the end of the main shaft 6. Specifications 18994/89, 26993/04, and 112,002 are referred to.
Patent GB-675516-A (GB)
Title: Spike driving apparatus
IPC: E01B29/26
Filed: 1949-09-14
Abstract: 675,516. Securing rails to sleepers. HOLMAN BROS., Ltd., and COOMBES, F. B. Sept. 14, 1950 [Sept. 14, 1949], No. 23688/49. Class 89 (iii). A tool for driving in a spike 3 for securing a rail 6 to a sleeper 13 comprises a driving block 4 having a shank 7 with which a pneumatically operated hammer in a cylinder co-operates. The lower face of the 'block limits the extent to which the spike is driven. The spike 3 may be supported in a groove 5 which is closed by an extension 8 of a screwed sleeve 2 by which the shank 7 is retained in the hammer cylinder.