baber/WOPTO huggingface dataset:
Patent GB-305342-A (GB)
Title: Improvements in or relating to tracers for copying and similar cutting machines
IPC: B23Q35/26
Filed: 1927-12-24
Abstract: 305,342. Shaw, J. C., and Shaw, R. D. Dec. 24, 1927. Milling; copying mechanism. -A tracer for following the. templet or pattern in a copying- machine, particularly the cam-cutting machine described in Specification 297,263, comprises a head having a knife edge engaging the pattern and rotatable about an axis passing through this edge. As applied to a tracer-spindle of the kind described in Specifications 233,747 and 275,479, the spindle 1 is universally movable in a casing 4 by means of a ball and socket bearing 2 and is provided at its free end with a tapered portion 10 on which the tracer head 9 is secured by a nuts 7 screwing on the spindle and the head. Ball bearings 13, 14 positioned within the head by sleeves 17, 18 and a cap 20, support the shank 15 of the tracer point which consists of a cylindrical portion 23 projecting from a circular flange 24 and cut away by two radial planes passing through the axis of the shank 15 and enclosing an angle of approximately 70‹. The knife edge 25 thus produced engages the pattern, and in the cam-cutting machine above referred to the pattern is laid out as a development of the central line of the cam sc that the axis of the tracer follows the path which the axis of the cam follower is required to traverse.
Patent GB-901658-A (GB)
Title: Improvements in or relating to circuit arrangements for discriminating and transmitting electrical pulses
IPC: G01R29/02
Filed: 1959-10-16
Abstract: 901,658. Semi-conductor circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1959 [Oct. 21, 1958], No. 35095/59. Class 40 (6). A circuit for discriminating between pulses having a different voltage/time integral comprises an amplifier having a resistance/capacitance integrator at the input, at least one controlled transistor for charging or discharging the capacitor, the amplified output being fed to a circuit for suppressing integrated pulses below a certain amplitude. The circuits described are suitable for separating pulses 30 at the output winding 3 of a magnetic store from interference pulses 30<SP>1</SP> having a larger amplitude but a smaller time integral. The pulses 30, 30<SP>1</SP> are integrated by the Miller integrator comprising transistor 1 (Fig. 4), capacitor 5 and resistor 2, to provide waveforms 33<SP>1</SP>, 35 at the collector. At the end of the wanted pulse 30, synchronizing pulses 39 on the lead 9 drive transistors 6, 10 into conduction, rapidly recharging capacitor 5. A diode 12 conducts in its Zener mode whenever the collector voltage rises above level 36, passing the upper part only of waveform 35 to a differentiating circuit comprising capacitor 14 and resistor 15 to provide a negative-going pulse 37. In Fig. 5, the Miller integrator comprises transistor 21 and emitter followers 1, 22, the low output impedance of transistor 22 rendering the charging transistor 10 unnecessary. The operating point of transistor 22 is controlled by a negative temperature-coefficient resistor 23. Diode 27 is normally conductive and shortcircuits the low amplitude unwanted pulses such as 33<SP>1</SP> but is cut off by the wanted pulse 35 which is then differentiated by circuit 14, 15. A transistor amplitude discriminator or a monostable circuit may replace the diode amplitude discriminator. The synchronizing pulses 39 may be formed by differentiating the trailing edge of waveform 30. Figs. 1-3 (not shown) relate to known transistor integrators.
Patent GB-521136-A (GB)
Title: Stringed musical instruments
IPC: G10D3/02
Filed: 1938-12-02
Abstract: 521,136. Stringed musical instruments. BORG, A. G. Dec. 2, 1938, No. 35213. [Class 88 (ii)] A sound-post 10, preferably with a central bore 28, has a rocking connection with the back 14 of a violin &c. through a springy wooden plate 11 with ends flanged on the underside as at 27. At its centre on the underside the plate carries a hard pointed projection 24 which rests on a button 26 glued to the back.
Patent GB-767721-A (GB)
Title: "improvements in or relating to the melting of high melting point metals or alloys"
Inventor: PRESTON JACK
IPC: C22C1/00
Filed: 1953-12-18
Abstract: 767,721. Casting processes; electrodes. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 8, 1954 [Dec. 18, 1953], No. 35259/53. Classes 83 (1) and 83 (4). Consumable electrodes for use in the arc - melting of highmelting-point reactive metals such as titanium, zirconium, molybdenium,' thorium, hafnium, chromium and their alloys, are made by feeding raw material in sponge, pellet, or other divided form to the melting- chamber of an arcmelting furnace at a higher rate than that consistent with complete melting of the raw material over the whole cross-section of the melting-chamber, whereby a coherent but incompletely melted mass of metal or alloy is built up. The furnace electrode may be of the consumable type made from the metal to be melted. In one embodiment, the pelleted material 1 is fed into a crucible 2, and heated sufficiently for the particles to commence to melt and adhere to one another, and the coherent mass 4 withdrawn by rolls 5, to project into a second crucible 6 where it acts as a consumable electrode to form, with additional raw material, a wholly melted electrode. The whole operation is carried out in an inert atmosphere. Alternatively, the electrode 4 may be removed when of a convenient length and melted in a separate firnace, or it may replace the electrode 3, the crucible 2 being replaced by a crucible of larger size into which the ingot is finally melted.
Patent GB-765715-A (GB)
Title: Beater sizing of paper with ketene dimers
IPC: D21H17/17
Filed: 1954-12-07
Abstract: An aqueous emulsion at pH 5 to 9 and containing 5 to 200 parts per million of water, of a ketene dimer of the formula [RCH=C=O]2 where R is alkyl of 8 or more C atoms, cycloalkyl of 6 or more C atoms, aryl or aralkyl is used as a size for paper.  Keteone dimers mentioned include octyl, decyl, dodecyl, tertadecyl, hexadecyl, octadecyl, eicosyl, docosyl, tetracosyl, phenyl, benzyl, naphthyl, and cyclohexyl ketene dimers, as well as those prepared from montanic, naphthenic, decylenic, dodecylenic, palmitoleic, oleic, ricinoleic, petroselinic, vaccenic, linoleic, linolenic, eleostearic, parinaic, tariric, gadoleic, arachidonic, cetoleic, erucic, and selacholeic acids, and those prepared from coconut, babassu, pine Reinel, palm, olive, peanut, or rape oils, and beef tallow, lard, or whale blubber. Wet-strength resins, fillers, dyes, and pigments may also be incorporated.
Patent GB-1126918-A (GB)
Title: Selective conversion process
IPC: B01J29/06
Filed: 1966-08-08
Abstract: 1,126,918. Cadmium-containing zeolites. ESSO RESEARCH & ENG. CO. 8 Aug., 1966 [13 Sept., 1965], No. 35471/66. Heading C1A. [Also in Divisions B1 and C5] A hydrocracking catalyst composition comprises a cadmium - containing crystalline alumino-silicate zeolite containing less than 10 wt. per cent of sodium and 0À5 to 15 wt. per cent sulphur and having pore openings less than 6A. The zeolite may be zeolite A or erionite, chabazite, analcite, lebrynite or natrolite, and preferably has more than 50% of its cation content as cadmium. The catalyst may also contain from 0À1 to 25% of a hydrogenation component which is a metal, oxide or sulphide thereof of Group V B , VIB, VII B  or VIII, for example Co, Ni, Pt, Pd. The catalyst is sulphided using a sulphur-containing feed, H 2 S or CS 2 .
Patent GB-838489-A (GB)
Title: Process for extractive alkylation
IPC: C07C2/62
Filed: 1958-11-05
Abstract: <PICT:0838489/IV (b)/1> In the alkylation of an alkylatable material with an olefine or olefine-acting compound, e.g. alkyl halides, in the presence of a liquid acid catalyst in a multistage contacting vessel, the acid is introduced at the top of the vessel, alkylatable compound and olefine at an intermediate point and alkylatable material at a lower point, the organic materials and acid being contacted in countercurrent, acid is withdrawn from the bottom, cooled and recycled and product is recovered from the organic material removed from the top of the vessel.  Alkylatable materials referred to are isoparaffins, e.g. isobutane, 2-methyl-butane, 2-methylpentane and 2,4 - dimethylpentane, benzene, toluene, xylene, phenol, cresols, amines, thiophenes and isoparaffinic mercaptans. Suitable alkylating agents are propylene, butylene, pentane, isopentene and homologues, propyl chloride, butyl chloride, pentyl chloride, isopentyl chloride, hexyl chloride and butyl bromide.  The catalyst may be sulphuric or hydrofluoric acid.  In alkylating isoparaffins with olefines, temperatures below 55 DEG  C. and pressures above 3.4 atmospheres are used.  In the tower 1 shown in the drawing alkylatable compound and alkylating agent are introduced by line 2, alkylatable compound by line 3. Acid is removed at the bottom and reintroduced at the top by line 5.  Extra reactants may be added by line 4 when line 5 operates as a transfer line reactor; in this case extra acid is added by line 13.  Organic material including product is removed by line 12.
Patent GB-1043675-A (GB)
Title: 17ª-halogenoethinyl-estranes
IPC: C07J75/00
Filed: 1963-09-10
Abstract: The invention comprises a 17a -halogeno ethinyl-estradiol having the formula <FORM:1043675/C2/1> wherein R is a hydrogen atom, a lower alkyl group or the acyl radical derived from a carboxylic acid having up to 8 carbon atoms; X isachlorine or bromine atom; Y is either of the groupings <FORM:1043675/C2/2> and Z is a hydrogen atom or the acyl radical derived from a carboxylic acid having up to 8 carbon atoms and a process for the preparation of a compound having the Formula III <FORM:1043675/C2/3> wherein R1 is a hydrogen atom or lower alkyl group and X and Y have the meanings above, characterized in that a compound having the Formula II <FORM:1043675/C2/4> wherein R11, when R1 is to be lower alkyl, is a lower alkyl group, or when R1 is to be a hydrogen atom and Y has the above meaning, is halogenoethynated in position 17, e.g. by means of lithium chloroacetylide or lithium bromoacetylide. In the resulting compounds, if desired, esterification may be effected in the 3 and/or 17 position, and desalkylation, acylation or etherification in the 3-position.  Pharmaceutical compositions having estrogenic activity and containing the above compounds are administered orally as syrups, capsules, cachets, tablets and granules.
Patent GB-1111591-A (GB)
Title: Mining cutter tool locking means
Inventor: BELL HUGH GRAHAM
IPC: E21C35/19
Filed: 1964-09-01
Abstract: 1,111,591. Mineral-mining pick mounts. COAL INDUSTRY (PATENTS) Ltd. 27 Aug., 1965 [1 Sept., 1964], No. 35768/64. Heading E1F. The latch mechanism for locking a mineralmining cutter pick in a box comprises a plunger that is biassed in the pick shank-receiving bore of the box and has a wedgeshaped leading end defined by an upper surface extending downwardly and outwardly into the bore to meet a lower surface extending at right angles to the axis of the bore. A pick would secured in the box by the wedge-shaped end of the latch entering a complementarily shaped recess in a shank when the shank is properly seated in the box.
Patent GB-1501398-A (GB)
Title: Hydraulic anti-skid braking systems and power steering systems for vehicles
IPC: B60T13/12
Filed: 1976-07-13
Abstract: 1501398 Hydraulic anti-skid braking GIRLING Ltd 13 July 1976 [30 Aug 1975] 35858/75 Heading F2F [Also in Division B7] In a combined vehicle hydraulic anti-skid braking and power steering system in which the power steering fluid supply is used to regulate braking in skid conditions, a power steering priority valve 28 is normally held in the operative open position by means of a piston 18 of a modulator assembly 1 which regulates the braking pressure in skid conditions, the modlator valves 6 being held open by resilient means 44 on failure of the fluid pressure. Braking system.-Modulating valves 6 in respective braking circuits between inlet ports 8 and outlet ports 13 are normally held open by pistons 11 acted on by a flange 16 of a top hat shaped piston actuated either by the springs 44 or by pressure fluid supplied to a chamber 19 from the steering supply line through a port 34, a valve 37, an outlet port 35 and a line 41. In skid conditions a solenoid valve 43 opens to connect the chamber 19 to a larger diameter chamber 42 thus displacing the pistons 15 to the right and hence displacing the pistons 11 to relieve the braking pressure and to close the valves 6 between the ports 8 and 13. Steering priority valve.-When the pressure in the chamber 19 is insufficient to displace the piston 18 to open the valve 28, pressure fluid is supplied to the steering through an orifice 33 and, on operation of the steering, back pressure acts on the piston part 23 to open the valve 28.
Patent GB-437698-A (GB)
Title: Improved carton or box for electric lamps or like articles
IPC: B65D5/50
Filed: 1934-12-14
Abstract: 437,698. Cartons for electric lamps. HUTCHINGS, R., 135, Dowsett Road, Tottenham, London. Dec. 14, 1934, No. 35876. [Class 18] A carton for electric lamps &c. is made from the blank shown in Fig. 1, flaps 11, 12 folding inwards to form a V-shaped support in the cap end of the lamp &c., the flap being positioned by a tongue 19 engaging a slot 18 and by a tongue 25 which engages the edges of flap 11 to position the flaps. The cap engages within registering openings 16, 21, flaps 24 engaging the pins of the cap, while the shoulder of the cap is engaged by the apex of the V. The wall 4 of the carton serves as a lid. Flaps 13, 14 fold in the manner shown in Fig. 3 to serve as supports for the bulb of the lamp &c. In the form shown in Figs. 7 and 9, a flap 39 forms a V-shaped support for the cap and is held in position by a tongue 40. The aperture 43 for the cap has curved ends and the lugs 45 are formed with V-notches. In this modification the body is completed by glueing a flap 35 to a panel 27. The securing means 9, 35, Figs. 1 and 7, may be interchanged.
Patent GB-990611-A (GB)
Title: Process for the continuous production of alkali metal terephthalates
Inventor: SINN RICHARD
IPC: C07C63/28
Filed: 1963-09-12
Abstract: Alkali metal terephthalates are produced by passing a mixture heated to 200-320 DEG  C. of an alkali metal benzene carboxylate and a known catalyst through a reaction zone whose free space is practically completely filled with reaction mixture, heating the latter to 340-550 DEG  C., continually moving it by means of shearing forces and discharging it, if necessary through an air lock, after a residence period of 5-60 minutes.  The product may be thereafter kept in a retention vessel for 10 minutes-5 hours at 380-450 DEG  C. and then discharged e.g. through an air lock.
Patent GB-1432451-A (GB)
Title: Hoisting mechanism
Inventor: JOHANSSON J R
IPC: E02D7/06
Filed: 1973-07-27
Abstract: 1432451 Pile drivers; drop hammers GOTEBORGS BETONGPALAR AB 27 July 1973 [10 Aug 1972] 35968/73 Heading B3H [Also in Division F1] A hoisting mechanism for a drop hammer such as a pile driver, comprises a piston cylinder assembly inside the hammer weight 4 and the cylinder 8 is provided with a valve housing 10, Fig. 4, whose valve member 15 controls the pressurization and exhaust of the cylinder to cause reciprocation of the weight 4. The weight is guided on a frame 3, Fig. 2, and working fluid, e.g. air or oil, is supplied to the cylinder through a flexible hose 22 from a container 25 via a valve 24. The valve may be manually operated or be controlled by limit switches 36, 37. The valve member 15, Fig. 4, may reciprocate or oscillate and is urged against spring 19 bias by the pressure in inlet 13 to connect the hose 22 to the cylinder 8 and when the pressure is reduced or cut-off the valve member 15 moves leftwards to connect the cylinder to exhaust.
Patent GB-1256230-A (GB)
Title: Improvements in mountings for photographic transparencies
Inventor: GREEN BERTRAM EDWARD CHARLES
IPC: G03B21/64
Filed: 1968-05-28
Abstract: 1,256,230. Transparency mounts. B.E.C. GREEN. May 23, 1969 [May 28, 1968; July 29, 1968], Nos.25545/68 and 35983/68. Heading G2C. A transparency mount has transparent sheet window material 4 adhesively attached by their margins 4A to a transparency enframing element 1 of the thickness greater than the transparency 5 so that each sheet is held spaced from and in a plane parallel to the transparency. The enframing element may be of cardboard and may in the form of a ready mount. The transparent sheets are preferably 0À008" to 0À005" thickness polyester film. The marginal areas of the sheets are preferably coated with a heat reflective surface prior to the application of the adhesive. Two outer framing elements (34), (35) Fig. 3 (not shown) corresponding in shape and dimensions to the ready mount may be stuck to the outer surfaces of the transparent sheets. Before use the adhesively prepared transparent sheets may be protected by a parting sheet.
Patent GB-508486-A (GB)
Title: Improvements in or relating to abrasive or hard wearing compositions
IPC: C09K3/14
Filed: 1937-12-30
Abstract: 508,486. Alloys. TENNANT, W. J. (Carborundum Co.). Dec. 30, 1937, No. 36158. Drawings to Specification. [Class 82 (i)] [Also in Groups V and III] An abrasive or hard-wearing composition comprises boron carbide .and one or more additional hard carbides, e.g. molybdenum, zirconium, tungsten, chromium, titanium, and silicon carbides. The composition is formed by the cooling of a fusion containing the required carbides in such proportion that at least a part of the additional carbide forms a separate crystalline phase. The amount of the additional carbide used in making the composition varies between 15 and 95 per cent. The fusion may be obtained by fusing a mixture of the preformed carbides, e.g. in an induction furnace, or by forming the carbides in situ from a mixture of carbon and the corresponding oxides, with or without kerosene or preformed carbide, e.g. in a resistance furnace ; in the latter case there may be a deficiency of carbon. e.g. a mixture of 50 parts of silica and 50 parts of boron carbide may be fused. Specifications 204,337, [Class 70], and 464,182 are referred to.
Patent GB-1113621-A (GB)
Title: Liquid separator
IPC: F02M37/32
Filed: 1964-09-03
Abstract: 1,113,621. Liquid separator. D. V. GOUGH. 4 Aug., 1965 [3 Sept., l964], No. 36191/64. Heading BID. A mixture of fuel oil and water enter at 22 a lower settling chamber 8 and the oil rises past valve 12, 14 into an upper chamber 6 and leaves by outlet 26, until accumulating water in the lower chamber 8 lifts the float 16 to close the valve 12, 14, whereupon an alarm signal is given. The alarm signal may be operated directly by the raising of the float 16, but is preferably actuated by the reducing pressure in chamber 6 produced by the diesel engine to which outlet 26 connects, after closure of valve 12, 14. The reduced pressure deforms a diaphragm 28, closing contacts 34, 36 which operate a visual or audible warning device 37, or the movement of rod 32 may be seen through transparent cap 38. The water may be drained from chamber 8 by opening valve 25, and screw 42 may then be withdrawn opening a by-pass passage 40 to enable the valve 12, 14 to open again by equalising the pressures in chambers 6, 8. Valves 25, 42 may be servo operated from a remote point such as a driving cab. The device is connected downstream of the fuel tank, with outlet 25 below the bottom of the tank, and the separated water in the tank may then be drained out through device and outlet 25.
Patent GB-1520956-A (GB)
Title: Surgical fastening device
IPC: A61B17/08
Filed: 1976-09-01
Abstract: 1520956 Wound-closing appliances UNITED STATES SURGICAL CORP 1 Sept 1976 [3 Sept 1975] 36195/76 Heading A5R A surgical fastening device for joining soft body tissues comprises a retaining member 13 and a fastener member 16 for location respectively on opposed surfaces of the tissues to be joined, the members being made of a biodegradable material and the member 16 having a projection 17 for passing through the tissues and engagement in an opening 14 in the member 13, the projection being pro-  vided with means for retaining it within the opening. Preferably the member 13 has a plurality of openings 14 and the member 16 a corresponding number of projections 17. The projections 17 are retained in the openings by the engagement of a shoulder 18a or 19a thereon with the underside 13b of member 13. To facilitate application of the device, a pusher member 26 is provided having pins 27 which extend through axial openings in the projections and hold the projections in a rigid condition the pointed ends 27a of the pins serving to pierce the tissues, and an anvil member 24 shaped to receive the member 13 and prevent lateral and longitudinal movement thereof, is located beneath member 13.
Patent GB-343613-A (GB)
Title: Measuring instrument for ascertaining the packing needed to bring to the proper height printing blocks that are too low
IPC: B41M9/00
Filed: 1929-11-27
Abstract: 343,613. Linear dimension gauges. GEIGER, GES., J., Stuttgart, Germany. Nov. 27, 1929, No. 36408. Convention date, Nov. 27, 1928. [Class 106 (ii).] A micrometer gauge for measuring the packing required to make up low printing blocks to the required height comprises a spring-influenced feeler one arm of which is adapted to engage the object to be measured while the opposite arm connected to indicating mechanism is formed as a handle. A two-armed lever 1, 8 is pivoted on the trunnion 6 between the walls 4 of the instrument, and is acted upon by a spring 7. Bearing on the arm 8 is one end of a lever 14 mounted on a pivot 11, the other arm of the lever engaging a pin 12 on a pivoted indicating sector 2 the scale of which is visible through an aperture in the upper part of a side wall the sector reading against a fixed mark on the top of the housing. A spring 20 connected to the sector and to the arm 8 absorbs back lash between the parts. A celluloid strip 28 is removably fixed to the feeler end 1 of the lever. In case, the handle 8 is depressed, and a standard block 29 is placed on the forme-locking plate 16, to which the device is clamped by the bow 9 and screw 10. The block to be gauged is then substituted for the standard and any deviation of the indicator noted. A vertical face 30 is provided for testing the correct angle of the sides of the block.
Patent GB-895824-A (GB)
Title: Improvements in or relating to electrical measuring units
Inventor: STEGHART FRITZ LUDWIG FELIX
IPC: G05D23/19
Filed: 1957-11-22
Abstract: 895,824. Automatic temperature-control systems. RHEOSTATIC CO. Ltd. Oct. 27, 1958 [Nov. 22, 1957], No. 36466/57. Class 38 (4). An automatic electronic control system for control of a first physical value-such as the temperature of an enclosed space-has means provided which are dependent upon a second physical value-such as the temperature outside the enclosed space-variations in the second physical value being effective to modify the first physical value according to a pre-arranged relationship. A bridge circuit 1-6 comprises a resistance thermometer 1 which is placed together with resistors 2, 5 inside a building the temperature of which is to be controlled whilst the resistors 3, 4, 6 and the transformer 10 are mounted in a controller which controls the temperature according to a desired value which is set by potentiometer 5 or 6. A second bridge circuit 16-21 comprises a second resistance thermometer 18 situated outside the controlled space, the output of the second bridge being fed to the first bridge. Potentiometers 17, 21 permit the second bridge to be set normally to 70 F. Thus a change in the outside temperature alters the output of the second bridge and thus will modify the desired temperature set on the first bridge accordingly. A thermostat 14 arranged to change over at 70 F. is provided in the supply to the second bridge whereby the incremental increase in the desired temperature inside the building when the outside temperature is above or below the datum of 70 F. may be independently set on potentiometers 13, 12, respectively.