baber/WOPTO huggingface dataset:
Patent GB-139033-A (GB)
Title: Improvements in and connected with guards or guard apparatus for presses and similarmachinery
IPC: F16P3/00
Filed: 1919-03-20
Abstract: 139,033. Moon, R. B., and Adams, F. E. March 20, 1919. Holding and picking-up tools; tongs.-To prevent injury to the operator of a press or similar machine, a work-handling appliance is fixed to the operator's arm and is provided with a step 12, which comes into contact with a stationary guard 5 on the machine, preventing the operator's hand from entering the danger zone. The appliance consists of tongs 11 on a stem capable of rotating in a tube 16 moving about a pivot 17 to an extent limited by a clip 15. A pad 3 is fixed to the operator's arm or wrist by a strap 14. A spring 20 engages the handle 19 to open the tongs, or in another form to close them. Fig. 8 shows a modification, in which the jaws 21 of the tongs are closed by a cylindrical spring 25 and are opened by pressing on a plate 23.
Patent GB-1418928-A (GB)
Title: Heating unit
IPC: A45D20/08
Filed: 1973-02-13
Abstract: 1418928 Electric heating element FRITZ EICHENAUER 13 Feb 1973 [23 Dec 1972] 7047/73 Addition to 1418929 Heading H5H A two stage electric blower heater comprises two helical heating elements of the type disclosed in Specification 1,418,929, the two helical elements 28, 29 being coiled in bifilar configuration and their turns spaced by means of notches in the edges of an insulating material panel 30 which is disposed in a diametral plane of the two helical elements parallel to the air flow. Each end 31, 32, 35, 36 of each helical element is provided with a terminal contact on the panel 30 for connection to leads 33, 34, 37. A thermal cut-out 42 is mounted on the insulating panel.
Patent GB-746549-A (GB)
Title: Improvements in compressor units for refrigeration systems
IPC: F25B31/02
Filed: 1954-03-11
Abstract: 746,549. Refrigerating. GENERAL MOTORS CORPORATION. March 11, 1954 [April 1, 1953], No. 7050/54. Class 29. [Also in Group XXVI] A compressor unit for refrigeration systems has a valve responsive to a predetermined pressure of the compressed refrigerant to artificially overload the compressor unit to initiate operation of an overload responsive device to stop the motor driving the compressor. A sealed casing 44 encloses an electric motor 50 with a driving shaft 46 on which is mounted an eccentric 48 of a rotary compressor having a sliding abutment 37. The refrigerant returns by pipe 20 to the suction port 22, is compressed and discharged at port 38 via a pipe 40 through a heat exchanger 42 into the interior of the casing 44, from which it is delivered by a pipe to the rest of the refrigeration system. When the compressed refrigerant in casing 44 reaches a predetermined pressure the valve 60 opens and allows the compressed refrigerant to pass into the suction space 64 so overloading the motor 50 which causes a current overload protector 30, as described in Specification 620,890, [Group XXXVII], to stop'the motor. The refrigerator system comprises the compressor unit 10, a condensor 12, a restrictor tube 16, a coil evaporator 14, and a plate evaporator 18 which has a thermostat bulb 24 connected to a pressure-operated switch 26 to control the motor. If air leaks into the system causing moisture to freeze in the tube 16 and block it the pressure in the system increases and the overload protector 30 stops the motor.
Patent GB-895884-A (GB)
Title: Improvements in ferrite phase-shifting devices
IPC: H01P1/19
Filed: 1960-02-29
Abstract: 895,884. Magnetic compositions. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 29, 1960 [March 5, 1959], No. 7077/60. Drawings to Specification. Class 38 (2). [Also in Group XL (b)] The Specification discloses the following three ferrite compositions. Quantities are given as percentages by weight.
Patent GB-400074-A (GB)
Title: Improvements in automatic traffic controlling systems
IPC: G08G1/085
Filed: 1933-03-09
Abstract: 400,074. Road-traffic signalling systems. AKTIESELSKAPET ELEKTRISK BUREAU, 17, Middelthunsgate, Oslo, Norway. March 9, 1933, No. 7174. Convention date, March 11, 1932. [Class 118 (ii).] In an auto. matic trafficcontrolling system in which a continuously rotating drum co-operates with brushes to supply current to relays controlling the signal lamps, the brushes can be displaced relative to the contact surfaces and relative to each other to alter both the intervals during which the individual lamps are illuminated relative to each other and the transitional time-intervals. Referring to the Figure, in which the drum is shown developed, conducting segments 6 and 7 are connected to one terminal of the supply 4 through brush 8 and conductors 10 and 11. Brushes 12 and 13 are associated with relays 1 and 2 respectively, the sytem being such that green lamps are illuminated if the relative relay is energized and red lamps if the relay is back. The relays are energized when their respective brushes contact with the conducting segments 6 and 7. By means of the coupling nut 14 the brushes 12 and 13 can be adjusted in relation to each other, allowing the brushes to be both in contact with the insulating segment 5 for a longer or shorter period of time and so adjusting the transitional time-intervals when both relays are de-energized and all the red lamps are illuminated. The brushes can also be moved as a whole relative to the conducting segments, thus altering the relative time intervals during which the red and geeen lamps are lit ; for example if the brushes are moved to the left the relay 2 gives green light during an interval greater than that for green light through relay 1. The switch 3 enables the system to be operated by hand when desired.
Patent GB-928825-A (GB)
Title: Improvements in or relating to synthetic filaments
Inventor: BEAUMONT ALBERT GORDON
IPC: D01D5/20
Filed: 1961-02-28
Abstract: A slub filament is produced by extruding molten polyolefin through an orifice at a shear rate above the critical shear rate, thereby producing turbulence and a serrated monofilament, and stretching the serrated filament.  Polypropylene melt at a temperature of 250 DEG C. may be extruded through a head having six orifices at a speed of 8 m./min.  The entry to each orifice may be tapered and each orifice may have a diameter of 0.02 inch.  Each filament may be stretched 300-1,200% while at a temperature of 100 DEG C. by a take-up godet. Polyethylene filaments may be similarly produced using orifices having a diameter of 90 DEG 100 DEG C., and stretching 500-1,200% while at a temperature of 90 DEG -100 DEG C. using a take-up godet.
Patent GB-873331-A (GB)
Title: Derivatives of 1,11-epoxy-4-methyl-1,3,5(10),9(11)-estratetraene
IPC: C07J73/00
Filed: 1960-03-01
Abstract: The invention comprises steroid compounds of the general formulae <FORM:0873331/IV (b)/1> and <FORM:0873331/IV (b)/2> wherein R represents OH, -O-CO-alkyl, -CO-CH3, -CO-CH2OH or -CO-CH2O -CO-alkyl, and in each case the alkyl group contains less than 7 carbon atoms, and the preparation of 1,11-epoxy-4-methyl-1,3,5(10),9 (11)-estratetraen-17-one by heating 1,4-androstadiene-3,11,17-trione with a hydrohalic acid, and the preparation of compounds of the general formula <FORM:0873331/IV (b)/3> wherein X represents hydrogen or a hydroxy group, by heating a compound of the general formula <FORM:0873331/IV (b)/4> wherein X has the above significance, with a hydrohalic acid.  The compound of the first general formula above wherein R represents a hydroxy group is prepared by reducing the corresponding keto compound with an alkali metal borohydride or an alkali metal aluminium hydride, and the esters of the said general formula are prepared by esterifying the corresponding 17- and 21-hydroxy compounds.  In the examples the following compounds are prepared:-1,11-epoxy-4-methyl-1,3,5(10),9(11)-estratetraen-17-one, 1,11-epoxy-4-methyl-1,3,5(10),9(11)-estratetraen-17b -ol and the corresponding 17b -acetoxy and propionyloxy compounds, 1,11-epoxy-4-methyl-17b -acetyl (and b -hydroxyacetyl, b -acetoxyacetyl and b -propionoxyacetyl)-1,3,5(10),9(11)-estratetraene.
Patent GB-579087-A (GB)
Title: Improvements in or relating to golf bag stands
IPC: A63B55/57
Filed: 1944-04-21
Abstract: 579,087. Golf-bag supports. STABLEFORD, J. L. April 21 1944, No. 7462. [Class 132 (ii)] [Also in Group XIV] A golf-bag support con sists of a pair of legs 9 connected by a U-shaped spring 11 hinged at 15 to a clamp 2 by which the legs are secured to the golf-bag. The spring 11 tends to separate the legs which, after being pressed together to release them from grooves 18, engage a pair of outwardly diverging ramps 6 so that the outward pressure of the legs upon the ramps causes the legs to swing away from the bag. A bridge 8, between the ramps, limits the outward movement of the legs. The support may be applied to other articles.
Patent GB-1069231-A (GB)
Title: Separation of fluid mixtures
Inventor: MCCORMACK WILLIAM BREWSTER
IPC: B01D69/08
Filed: 1966-02-21
Abstract: Non-porous polymeric membranes 1-32 microns thick coated on porous glass or polymeric tubes are used to separate mixtures of gases and liquids by diffusion.  Preferred embodiments use a plurality of capillary tubes mounted in apparatus as in Specification 1,019,881 and in C. J. Walters, Petroleum Refiner, May 1959, pages 147-150. Porous glass capillaries are obtained by vitrification by heating followed by acid leaching while porous polymer capillaries may be made by a variety of processes including melt and solution extrusion, followed by removal of the solvent, the extrudate containing e.g. a plasticizer, diluent, or inorganic solvent which may afterwards by leached away, or they may be obtained by sintering processes. Preferred capillaries are 20-250 microns in outside diameter.  The membrane may be applied to either the inside or outside surface of the tube and may e.g. by applied by continuous coating of a capillary as it is drawn, by application of a very dilute solution to a prepared capillary, or by in situ polymerization or precipitation. In examples cellulose acetate is applied to porous glass as a 5% solution in acetone, and a polymeric phosphine oxide prepared from isoprene and dichlorophosphine according to U.S.A. Specification 2,671,080 as a solution in methanol.  Other specified polymers include regenerated cellulose, cellulose acetate, polyethyleneterephthalate, polystyrene, PVC, polyvinylidene chloride, nylon 66, polyvinylpyrrolidone, polyvinyl alcohol, and copolymers of ethylene, propylene, vinylidene fluoride and hexafluoropropylene.
Patent GB-1394156-A (GB)
Title: Rotary printing press
IPC: B41F33/00
Filed: 1973-02-15
Abstract: 1394156 Printing presses W H GRANGER 15 Feb 1973 [19 Jan 1973] 7478/73 Heading B6C A rotary printing press has a plate cylinder, Fig. 2, driven from a vertical shaft via gears 31, 32 to a cross-shaft 33 and a bevel gear 41 or 42 to a bevel gear 46 mounted on one end of the axle of the plate cylinder in which the connection between the cross-shaft 33 to bevel gear 41 or 42 is via a driven sleeve 61, Fig. 7, having external gear teeth 58 which mesh with internal gears 56 or 57 on the bevel gears 41 or 42. The sleeve 61 is splined on cross-shaft 33 and shifted by a bellcrank lever 71 actuated by a hand wheel 83 and screwed shaft 82.
Patent GB-107612-A (GB)
Title: Improvements in Road Sweeping Machines.
Inventor: HALL CHARLES GILBERT
IPC: E01H1/08
Filed: 1916-11-18
Abstract: 107,612. Hall, C. G. Nov. 18, 1916. Pneumatic collectors; sweeping-machines; taking up refuse for removal.-Relates to machines for dealing with dust on military parade grounds and upon roads, and of the type having a rapidly rotating fan driven from one of the road wheels which fan causes dust to enter a dust chamber where some of the dust settles upon a shallow layer of water and some adheres to an endless band moving into water at the back of the dust chamber. The invention consists in a special arrangement of the water receptacles and the endless band. In the form shown in Fig. 2, a fan 33 with flexible blade tips is connected with the road wheels 8 so as to be rapidly rotated in a casing 7 having an opening 16 near the ground through which the dust is drawn and delivered by way of an opening 17 into a dust-collecting chamber. This chamber is fitted with an endless band 19 of textile material freely suspended from the wheel axle 13 and kept taut by a pulley 25 so as to move continuously in a clockwise direction through water in a vessel 24. The dust settles on the surface of the water to the right of a partition 22, and by admitting more clean water to the left of the partition the dusty water may be made to overflow into a low chamber 23, which is then emptied by a valve 28.
Patent GB-776394-A (GB)
Title: Improvements in flexible hose
IPC: F16L11/10
Filed: 1955-03-15
Abstract: 776,394. Flexible hose. COMPOFLEX CO., Ltd. and MOSELEY;,J. Jan. 18, 1956 [March 15, 1955], No. 7563/55. Class 99(2) A flexible hose for conveying liquid oxygen comprises a plurality of layers of "Terylene" (Registered Trade Mark) film and internal and external helical wire armourings. It may comprise one or more inner layers of "Terylene" cloth, a number of intermediate layers of "Terylene" film and one or more outer layers of "Terylene" cloth. If desired the intermediate layers of "Terylene" film may be divided into two groups by an interposed layer of "Terylene" cloth. The hose is made by applying to a mandrel a helix of stainless steel wire then two turns of "Terylene" cloth then twenty turns of "Terylene" film of thickness 0.0015 in., then two more turns of "Terylene" cloth and finally an outer helix of stainless steel wire. In another embodiment the twenty turns of "Terylene" film are followed by one turn of "Terylene" cloth, ten turns of "Terylene" film, three turns of "Terylene" cloth and then the stainless steel wire. In suitable cases the turns of "Terylene" cloth may be dispensed with entirely.The hose may include layers of "Terylene" film and a polyvinyl chloride or similar synthetic plastic composition or layers of "Terylene" and synthetic rubber. The wire armouring particularly the outer armouring, may be constituted by a monofilament of suitable synthetic plastic material or of synthetic rubber.
Patent GB-163534-A (GB)
Title: Improvements in liquid substances for removing oil, grease and the like from surfaces
IPC: C11D7/60
Filed: 1920-03-15
Abstract: A liquid for removing oil and grease from metallic surfaces consists of an aqueous solution of ammonium chloride and potassium bisulphate, for example 35lb. of ammonium chloride and 2lb. of bisulphate in 350 gallons of water.
Patent GB-667347-A (GB)
Title: Corrosion-resisting linings and coverings
IPC: B01J19/02
Filed: 1950-03-28
Abstract: 667,347. Preventing corrosion. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 28, 1950 [March 28, 1949], No. 7669/50. Class 123 (i). A high-pressure reaction vessel 1, or heat-exchanger tube, &c. is provided with a corrosion-resistant metal lining 3, or sheath, of, for example, tantalum of a thickness of 0.1 to 0.2 mms. which fits into or over the vessel with a clearance of about 1 mm., the said clearance being filled with a substance, such as paraffin, a metal halide, mercury or Wood's metal, which is liquid at the operating temperature of the vessel. The lining or sheath may be secured to the vessel and its cover 2 by slightly-conical clamping rings 4, 4<SP>1</SP> which are inserted into correspondingly-shaped grooves in the said two parts; at an opening, such as 5, the lining passes through the opening and is welded to a flangeshaped plate 3<SP>11</SP> clamped around the periphery thereof.
Patent GB-1116498-A (GB)
Title: Improvements in pelletization
Inventor: BEALE COLIN OGDEN
IPC: C22B1/243
Filed: 1966-02-22
Abstract: Hardened pellets are produced from finely divided solids containing as a major constituent a sulphidic Cu concentrate by moistening the solids with aqu.  H2SO4, balling the moistened solids, and then drying the pellets at 90-450 DEG  C. The H2SO4 reacts with the concentrate to form a water-soluble metal sulphate which is said to be concentrated during drying in the outer layers of the pellet and thereby form a hard crust.  The solids may be balled with 1-1.7% H2SO4 (by wt. of the solids) and dried in a rotary drum or by passing hot gas through a packed or fluidized bed of the pellets.
Patent GB-1174584-A (GB)
Title: Improvements in Amplitude Compression Arrangements suitable for use in Electrical Signalling Systems
Inventor: PURTON RAYMOND FREDERICK
IPC: H04B14/04
Filed: 1966-02-22
Abstract: 1,174,584. Analogue-to-digital converters. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. 21 Feb., 1967 [22 Feb., 1966], No. 7757/66. Addition to 966,384. Heading G4H. In an analogue to digital converter with an approximately logarithmic characteristic, e.g. for a PCM. system, the sample signal to be digitized is balanced by a signal derived by selecting one or more of a series of standard currents or voltages I-I/8, Fig. 3, connected in parallel and one or more of a series of alternators A1-A3 connected in series. The input signal is compared with the output from the circuit of Fig. 3 and the comparator signal controls a logic circuit controlling in turn the switches S0 S1<SP>1</SP>, S1-S6. The circuit is set in seven steps. At time T0, switch S0 is set according to the polarity of the input. At time T1 switches S1<SP>1</SP> and S1 close. The current I is 512 units, half the total range. When switch S1 operates, the alternator A3 is by-passed leaving only alternators A1 and A2 so that the current I is divided by 8. The output signal is therefore 64 units. If the input signal is 327 units, for example, it exceeds the feed-back value of 64 so switches S1<SP>1</SP> and S1 stay operated. At time T2 switch S2 operates reducing the attenuation to 2, the current then being 256. The input is still the greater so switch S2 stays operated. At time T3 switch S3 operates to cut out the last of the alternators, increasing the current to 512. This exceeds the input so switch S3 reverts to its initial state. At time 74 switch S4 operates adding current I/2 so that the total is now 384 which exceeds the input so switch S4 resets. At time T5, the switch S5 operates, adding I/4 to produce a current of 320. The input is greater so switch S5 remains set. At time T6 the switch S6 operates to add I/8 giving a total of 352. This exceeds the input so S6 resets. Each stage gives a binary " 1 " or " 0." For small input values the operation is modified. For example, for an input of 5 units, the process is as before, each step requiring the switches to be reset, until time T3 when switch S3 is operated to give a value of 8 which is still too large. However, because switches S1 and S2 are reset, switch S3 remains set and switch S1<SP>1</SP> is opened so that the next value tried (by closing switch S4) is I/2 and this is attenuated by a factor of 64 to give 4 units. Since the input exceeds this, switch S4 remains set and switch S5 is operated at time T5 to add I/4 giving 6 units. Switch S5 accordingly resets and at time T6 switch S6 is operated to add I/8 giving 5 units. The circuit of Fig. 3 may be used by itself as a decoder, the switches being controlled by the input digits and an unswitched current of I/16 being added to give a better approximation to the original level.
Patent GB-522872-A (GB)
Title: Improvements in or relating to vehicle doors
IPC: B60J10/04
Filed: 1939-03-10
Abstract: 522,872. Vehicle windows. PRESSED STEEL CO., Ltd., and SPEED, E. March 10, 1939, No. 7760. [Class 20 (iii)] [Also in Group XXXII] A vehicle door consists of an outer panel 10, having a window opening, and an inner panel or framework 13 co-operating with and reinforcing the margins of the outer panel 10, the panel 13 forming an interior moulding 14 around the window opening and a retainer for horizontally-slidable windows 20, 21 therein. The space between downturned flanges 12, 15 on the panels provides an aperture through which the windows, carrying felt or like channels 22, 23, are inserted, the apertures being closed by a channel-section strip 16 connected to the flanges and the base of which forms the bottom run for the windows. A wooden &c. strip 27 secured to a flange 19 on the panel 13 assists manipulation of the door. At the upper margin of the window opening, Fig. 3, inturned flanges 31, 33 on the panels are welded together to constitute the bottom of the upper window run. At the forward margin of the window opening the construction is similar to that shown in Fig. 3 except that the flanges 31, 33 are shorter for accommodating the edge of only one window.
Patent GB-732434-A (GB)
Title: Improvements in frozen confections
Inventor: SEARLE GEORGE HAZELL
IPC: B65D85/78
Filed: 1951-04-04
Abstract: 732,434. Packaging frozen confections. WALL & SONS, Ltd., T. March 24, 1952 [April 4, 1951], No. 7787/51. Class 94 (1). A frozen confection, intended for consumption whilst held in the hand, is enclosed in a paper bag of uniform cross-section coated internally with a heatsealing composition other than paraffin wax, the composition being in direct contact with the confection and such as to render the bag substantially leak-proof and its interior sufficiently smooth to allow the confection to be extruded by finger pressure. As shown, the bag 1 is of triangular section and made from glazed imitation parchment coated on the inner or both sides with the heat-sealing lacquer used for forming the side seams and bottom seam 4. The bag is filled to the desired level with the liquid confection, which has previously been chilled to about 0‹C., and then passed through a refrigerating blast tunnel, whereby the confection is frozen to form a stick 2. The top of the bag may then be closed by a readily-opened seal. In use, the bag is grasped in the region A and the resultant thawing of the surface layers of the stick enables it to be extruded by pressing upwardly on the lower end of the bag. Specifications 503,421, 549,997' and U.S.A. Specification 1,912,352 is referred to.
Patent GB-1243935-A (GB)
Title: Apparatus for transferring an irradiated sample from a sampling station to a storage station
Inventor: AUJARD MICHEL
IPC: G21F7/06
Filed: 1970-02-18
Abstract: 1,243,935. Railway systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. 18 Feb., 1970 [21 Feb., 1969], No. 7793/70. Heading B7L. [Also in Divisions B8 and F2] A device for the transfer of a sample 1 irradiated at low temperature near the core of a nuclear reactor to a shielded vessel 4 comprises a carriage 6 mounted on rollers 7, 8 for movement under gravity along an inclined tubular guide rail 5. When it is irradiated the sample 1 suspended from a cable 2 is lowered into a thimble 3. After irradiation an electric motor 11 is switched on by remote control to wind in the cable 2 on a drum 10, the torque exerted being limited by a friction spring 46 whose tension is set by a cap 47 adjustable along drum axle 23 by a nut 48. As the sample 1 nears the top of its lift it engages an open sleeve 17 attached to a rod 16 sliding in a sheath 25. This lifts the rod 16 and releases a lever 14 pivoted at 15 and engaging an abutment 12 on the rail 5. The carriage 6 is then free to run down the rail 5, releasing a microswitch 51 actuated by the abutment 12 to switch off the motor 11. Studs 20 are fixed to the rail 5 above the vessel 4 and these engage arms 42 pivoted at 44 and swing them to the ghosted position shown in Fig. 2. The arms 42 mount studs 41 normally retaining a member 34 urged by springs 37 towards the rail 5 and carrying a brake lining 35. The movement of the arms 42 releases the member 34, applying brake 19 to stop the carriage 6 above the vessel 4. The movement of the member 34 actuates a microswitch 50 to energize the motor 11 and lower the sample 1 into the vessel 4. After loading of the sample 1 into the vessel 4 the cable 2 is cut and the vessel 4 closed.