baber/WOPTO huggingface dataset:
Patent GB-710066-A (GB)
Title: Improvements in or relating to refrigeration apparatus
IPC: F25D21/08
Filed: 1952-11-25
Abstract: 710,066. Refrigerating. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 25, 1952 [Dec. 13, 1951], No. 29799/52. Class 29 In a compression refrigerating system in which liquid refrigerant is fed from a condenser 50 through a restrictor tube 54 in heat-exchange with the suction conduit 56 to a storage vessel 26 before passing to the evaporators and in which, for defrosting, the liquid in the vessel is discharged through the evaporators by heating, the evaporator unit comprises a U-shaped part 16 forming the bottom and sides and an L-shaped part forming the top and back, the vessel 26 is located on the back and supplies liquid to the top evaporator 36 and the side and bottom evaporator 39 in series through a connection 30 from the lower part of the vessel, a connection 28 having a restriction 34 joining the upper part of the vessel to an upwardly-extending part of connection 30, and the vessel 26 and evaporators 36, 39 are formed by passages between the superimposed sheets of the evaporator unit. In operation on the cooling cycle, the compressor motor is controlled by a thermal element 66 responsive to the evaporator temperature and actuating a switch 58. Liquid refrigerant flows to vessel 26 through restrictor 54 and pipe 22 to fill the former. Refrigerant is supplied to the evaporators from the vessel through connection 30 and any vapour formed in the vessel escapes therefrom through restrictor 34 to the connection 30. In defrosting, a switch 72 is closed, e.g. as described in Specification 678,075, to energize a heater 24'alongside pipe 22. Refrigerant reaching the vessel 26 is thus heated and the pressure rise in the vessel cannot be vented because of the restriction 34 and hence forces the refrigerant in the vessel through connection 30 to defrost the evaporators. Ultimately vapour passes to the evaporators and any condensate therefrom is re-vaporized by the heatexchangers 54, 56 and 52, 56. Switch 72 is in series with switch 58 so that defrosting will occur only when the compressor is running. Reference has been directed by the Comptroller to Specification 620,951.
Patent GB-845823-A (GB)
Title: Stabilised compositions comprising therapeutic imine derivatives and the preparation thereof
IPC: C07F9/564
Filed: 1958-09-17
Abstract: Therapeutic compositions comprise anhydrous polyethylene glycol and a water soluble ethylene imine derivative of general formula: <FORM:0845823/VI/1> wherein n is 2 or 3 and R is trivalent radical of the formula \sY P = O; \sY P = S or <FORM:0845823/VI/2> and where n is 2, the remaining valency of R is by a radical having no substantial deletrious affect on the pharmacological properties and water solubility of the compound, e.g. diethylamine, morpholino, or radicals having the structures <FORM:0845823/VI/3> Specified and preferred derivatives are; N,N1, N11- triethylene thiophosphoramide; N, N1, N11 -triethylene phosphoramide; N, N -diethyl-N,1 N11-diethylenephosphoramide; N, N1 -diethylene -N11 -morpholinothiophosphoramide; 1,3,5, -triethyleneimine- 2,4,6-triazine, 0, 01 -pphenylene- N,N1,N11,N111-tetraethylene tetramide di(thio)phosphate and O, O1-p-phenylene-N, N1, N11, N111-tetraethylene tetramide diphosphate.  The compositions preferably contain from 1 to 5% by weight of the ethylene imine derivative which maybe dissolved in the polyethylene glycol with or without the aid of heat and the resulting solutions may be sealed into ampoules or used in the preparation of tablets and ointments. The polyethylene glycol may have a molecular weight of from 200 to 6000 and may be a liquid; e.g. polyethylene glycol 400 or a solid, e.g. "Carbowax 4000".
Patent GB-1423691-A (GB)
Title: Condenser mount for microscope
IPC: G02B21/08
Filed: 1973-06-22
Abstract: 1423691 Microscope condensers SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE - SOPELEM 22 June 1973 [22 June 1972] 29816/73 Heading G2J The condenser assembly has a composite lens 1, 2 which, when complete as in Fig. 1, is of short focal length and high N.A. and which, upon removal of the front component 1, is of long focal length and low N.A. A single control member 10 is provided which causes a rectilinear movement of the lens parallel to its axis and at the same time causes retraction or replacement of the front component 1, the focal positions being automatically correct in each case. In the construction described, component 2 is movable relative to fixed frame 11 by means of a slide 8 provided with a rack 9 which meshes with a pinion rotatable by the control member 10. Component 1 is mounted by arms 4 which are pivoted at 5 to the mounting of component 2 and are biased by spring 7 to the position shown which is defined by a stop 6. As component 2 is lowered by member 10, portion 12 of arm 4 abuts against a fixed stop 13 which has a rounded corner so that further lowering pivots component 1 about 5 away from the optical axis to leave component 2 in the correct position to operate as a long focal length condenser. If component 2 is now raised, spring 7 draws component 1 back above component 2 in which position the condenser is correctly set for short focal operation.
Patent GB-423961-A (GB)
Title: Improved single tube modulated oscillator
IPC: H03B7/04
Filed: 1933-10-27
Abstract: 423,961. Valve generating circuits. BROWN, W. F., 29, Bell Street, Brierley Hill, Staffordshire. Oct. 27, 1933, Nos. 29826 and 32425. [Class 40 (v)] A single-valve oscillator primarily intended for testing, demonstrating, or servicing wireless receivers comprises a tetrode valve 1 preferably of the screen grid type, connected as a dynatron by biassing its screen grid to a higher positive potential than the anode. The oscillatory circuit 15, 16, 13 in the anode circuit is switched at 17 for three wave ranges. Modulation may be applied to the control grid circuit from a source 32 such as a gramophone pick-up through a transformer 27 and potentiometer 28. Alternatively self-modulation may take place with the switch 34 on contact 44 thus back-coupling the screen grid to the control-grid circuit through condenser 43 resistance 40 and inductance 41. Constant amplitude is obtained by feeding back oscillations across condenser 24 to a unilateral conductor 25 ; the rectified oscillations vary the control grid bias in such sense as to keep the oscillation amplitude constant. Condenser 30 is inserted by switch 31 only for self modulation. Resistance 4 provides normal control grid bias, from a tapping on which the output from the oscillator is taken through resistance 38 and condenser 37 to the receiver through a shielding tube. Where the supply current is obtained from batteries the radio frequency output is taken from a voltage divider comprising a condenser and high resistance connected between anode and earth. Specification 400,995 is referred to.
Patent GB-904678-A (GB)
Title: Diphenyl-disulphonates of thiamine and dithiamine
Inventor: TANAKA ICHIRO
Filed: 1960-08-30
Abstract: The invention comprises thiamine salts of diphenyl-disulphonic acid, of which thiamine-, and dithiamine-diphenyl-p,p1-disulphonate are specified.  The former may be prepared by adding a solution of 30 grams of disodium diphenyl-p,p1disulphonate in 600 mils of water to a saturated aqueous solution of thiamine hydrochloride and allowing the disulphonate to crystallise out, it may be recrystallised from hot water.  The latter may be prepared by adding a solution of 40 grams of disodium diphenyl-p,p1-disulphonate in 800 mils of water to a saturated solution containing 80 grams of thiamine hydrochloride and then sufficient sodium bicarbonate solution to bring the pH to 6.5 causing the precipitation of white crystals.  Thiamine nitrate may replace the hydrochloride.
Patent GB-769501-A (GB)
Title: Improvements in and relating to electroluminescent devices
IPC: H05B33/22
Filed: 1953-10-29
Abstract: 769,501. Electroluminescence. GENERAL ELECTRIC CO. Oct. 25, 1953 [Oct. 30, 1952], No. 29949/53. Class 39(1). An electroluminescent lamp comprises a layer of light transmitting resinous dielectric material between the electroluminescent layer and one electrode and the latter is covered by a moisture excluding casing and a glass plate. A single clear layer 4 of dielectric material, e.g. plasticized cellulose nitrate is contiguous to a layer 3 of an electroluminescent mixture of zinc sulphide and zinc selenide activated with copper or of zinc sulphide and zinc oxide activated by halogen, copper and lead, and is enclosed between a transparent conductive layer 2 of a metal compound coated on glass plate 1 and an electrode 4 of finely divided metal e.g. silver. Other suitable dielectric materials are polystyrene, polyvinyl chloride, alkyl, resins modified with castor oil, 2: 2 dinitropropane, nitrowax, polymerized ethylene, methacrylate resins, a solid resinous form of methyl phenyl polysiloxane and a copolymer of butadiene and acrylonitrile. The phosphor may be applied by spraying or by settling. The clear layer of dielectric material may be applied in several coats by spraying to a thickness of 0À001 inches or thicker. The assembly is finally heated to 70‹-80‹C., ceresin wax painted over it and a glass plate 9 applied to the wax. In a modification, Fig. 2 (not shown), an additional layer of dielectric material is applied between the conductive layer 2 and the phosphor layer, the latter being applied to the heated stratum to cause immediate evaporation of the solvent and avoid sinking into the dielectric layer. The layers 10, 11, Fig. 2 (not shown) may be of different materials in different solvents. Specification 731,677 is referred to.
Patent GB-364673-A (GB)
Title: An improved board for teaching arithmetic
IPC: G09B19/02
Filed: 1930-10-07
Abstract: 364,673. Educational appliances. THOMPSON, R., 365, Merlin Crescent, Edgware, and LEVETT, F. G., 35, Hillway, Holly Lodge, Highgate, both in London. Oct. 7, 1930, No. 29997. [Class 146 (ii).] A device for teaching arithmetic comprises a board A having a plurality of slides H adapted to slide horizontally, each provided with a series of numbers in a predetermined order, and fitted with a plurality of vertical strips V which may be moved horizontally in grooves to appropriate positions on the board. A series of interchangeable naming strips N are provided at the top of the board, each strip having two different sets of denominational headings. The vertical strips V assist in setting examples on the board by separating items and providing additional columns of figures, signs, &c.
Patent GB-1206541-A (GB)
Title: Improvements in plates
IPC: A47G19/02
Filed: 1968-06-24
Abstract: 1,206,541. Plates. MELAWARE Ltd. and R. A. MANOY. 28 April, 1969 [24 June, 1968], No. 30107/68. Heading A4A. A plate (shown in section in Fig. 3) has a section of wall 4 turned inwardly at the rim to define a lip 5. It may be oval in outline with a foot 3 eccentric to the rim 2.
Patent GB-612097-A (GB)
Title: Improvements in and relating to the cooling of gas turbine rotors
IPC: F01D5/08
Filed: 1946-10-09
Abstract: 612,097. Gas turbines. ENGLISH ELECTRIC CO., Ltd., BROWNHILL, F. D., and WOLFF, P. H. W. Oct. 9, 1946, No. 30195. [Class 110 (iii)] Turbine blades having fir-tree roots are provided with abutting flanges 2b forming a continuous floor spaced by the channels 4 from the periphery of the rotor discs. Channels 3 are also provided between the inner ends of the roots and the bottoms of the root sockets in the rotor. Several constructions to direct cooling air through these passages are described, all of which involve the provision of rings, in segments, between the rotor discs which, with the flanges on the blades, form a continuous cylindrical surface shielding the rotor discs from the hot gases. In Fig. 1, the ring segments 7 receive air from the rotor cavities and direct it through the axial channels 3 beneath the blade roots. The next down-stream ring turns the air back through channels 4 beneath the blade flanges and, in escaping, the air is deflected into the gas stream by lips 15. The ring segments have projections 17 which are slidden circumferentially between annular projections 5, 5a. These are cut away over one segment, to permit the segments to be introduced radially and the closing segment is formed in two parts 7a, 7b which are separated by a wedge 18 secured in place by a weld 18b. In Fig. 3, the rotor discs have overlapping flanges 20a, 20b secured together by a weld 20 and the air chamber between the discs is completed by segments 37. The segments have parts 33 engaging in grooves 26 in the rotor discs and at their other ends 35 are shaped to fit in the fir-tree sockets for the blades. The walls of the sockets are slotted circumferentially at 39. The ends 35 of the segments are introduced radially into these slots and the segments are shifted axially. They are held in position by the blade roots which are inserted afterwards. In this form, the air passes in the upstream direction through both sets of passages and is deflected into the gas stream through gaps 36 by lips 30. Alternatively, the gaps 36 may be closed and the wall 32 of the segments perforated to permit an undeflected air stream throughout the length of the rotor. In another form, in which the blade slots are circumferential, air passes through ports in the ring segments to the space beneath one side of the flange of each blade, down slots cut in the root to the channel beneath the blade root, up slots cut in the opposite side of the root and into the space beneath the flange on that side of the blade, thence it escapes through ports into the gas stream. In this form, the abutting edges of the ring segments are inclined to the axial direction. Specification 543,985 is referred to.
Patent GB-383047-A (GB)
Title: An improved method of and mechanism for automatically severing the threads of continuously stitched book-pads in stitching machines
IPC: B42B2/02
Filed: 1931-10-31
Abstract: 383,047. Book - stitching machines. POLLAK, J. E., 20, Holborn, London.- (Brehmer Geb. ; Plagwitz, Leipsic, Germany.) Oct. 31, 1931, Nos. 30225/31 and 206/32. [Class 112.] Thread-cutting devices for book-stitching machines comprise a knife 17 which is moved forward by the cam mechanism described in Specification 362,863, to sever either one limb of a book held by a looping needle 13 or the thread extending to the sewing needle 12. In a modification a hooked thread selector 22, Fig. 5, is moved forward and on its return the selector drags the thread against a knife 23. Alternatively the rear edge of the hook is formed as a knife and the hook may pass through the loop in a vertical plane to facilitate its passage and be turned through a right-angle so that its cutting edge is transverse to the thread when it recedes to cut the loop. Specifications 362,132 and 362,864 also are referred to.
Patent GB-402235-A (GB)
Title: Improvements in guards for guillotine machines for cutting paper or fabric
IPC: B26D7/22
Filed: 1932-10-28
Abstract: 402,235. Machinery guards ; locking levers. FURNIVAL, F. S., and FURNIVAL, H., Reddish Iron Works, Reddish, Lancashire. Oct. 28, 1932, No. 30238. [Classes 80 (iii) and 80 (iv).] Guillotine paper or fabric-cutting machines are fitted with vertically-sliding guard strips D between the clamping bar C and knife B, a vertically-movable rod E by which the guards are raised clear of the work, and a rock shaft e<2> and crank arms e<1> by which the rod E is raised before or on the up-stroke of the knife. The rod E may be controlled by a pedal F or by an adjustable stop on the knifeholder B<1> adapted to push against a lug on the shaft e'. Locking means are provided for the setting-on lever 5. These comprise a bellcrank latch 4 and a pivoted lever H fitted with a spring pin K, Fig. 8. A hole k is made in the frame to house the pin. When the pedal is depressed the lever H is moved into locking position, both hands of the operative being then required to start the machine. In a modified locking mechanism, the lever H is moved to engage the lever 5 by gravity or a spring. In this case one hand is used to remove the lever H and the other to disengage the latch 4.
Patent GB-1109007-A (GB)
Title: Improvements relating to a leader spacer for cine film
IPC: G03C1/825
Filed: 1965-07-16
Abstract: 1,109,007. Leader strips. G. HERBUVEAUX. July 16, 1965 [July 24, 1964J, No.30351/65. Headings G2A and G2C. A leader 1 or a spacer for cine-film consists of an emulsion-free perforated strip which is rendered opaque by having titanium oxide incorporated in the plastics material from which it is made. Reference marks may be distributed along the strip, the distance between two reference marks corresponding to a frame length of a cinefilm with which it may be desired to synchronize a tape.
Patent GB-709099-A (GB)
Title: Milling machine
IPC: B23Q35/18
Filed: 1952-12-01
Abstract: 709,099. Copy-milling. DUBOSCLARD, P. P. M. Dec. 1, 1952 [Dec. 7, 1951], No. 30409/52. Class 83 (3) A milling machine for cutting the surfaces of a long twisted boom 20 for an aircraft wing spar comprises a carriage 33 which is self-propelled along a work-supporting bed 30 and has a cradle plate 39 angularly adjustable about the axis of the work, the plate carrying two or more milling cutters 38, each of which is hydraulically adjustable up and down or laterally on the plate under control of two helical cams 75, 75<SP>1</SP> moving with the carriage and rotated and axially advanced in correlation with the carriage advance. The cams each comprise several sectors 76' secured by wedges in a helical groove on a drum 77<SP>1</SP>, the total length of the cam edge corresponding to the length of the boom 20. A driving motor 34 (not shown), mounted on the carriage, is connected to a pinion 160 engaging a rack 161 for driving the carriage and also, through a flexible shaft, universal coupling and train of gears, to an external gear 84<SP>1</SP> on the hub of each cam drum. An internal screw thread on the hub engages a stationary screwed member 88<SP>1</SP> so that the drum is axially advanced as it rotates. The cam 75<SP>1</SP> controls the lateral movement of the milling head 41 and its motor 71 in a sleeveblock 40 by a spring-loaded roller follower 93' which controls a valve 106<SP>1</SP> connected to a hydraulic cylinder 113. A torque-resisting linkage 116 interconnects the milling head and the block 40 to prevent relative rotation. The cam 75 controls the up and down movement of the sleeve block on the plate 39 by a similar follower 93, valve 106 and hydraulic cylinder 57, and adjustable spring-loaded means 50 is connected to an extension of the piston rod for partially counterbalancing the weight of the block 40. The cradle plate 39 may be tilted about the axis of the work either by a template 150 extending along the side of the bed 30 and engaged by a roller 152, a spring 154 being connected to the cradle plate by a chain 156 in order to maintain the roller and template in engagement, or helical template means driven and controll'ng in the same way as the cam 75 may be mounted on the cradle plate. Manual adjustment of the followers is provided by screws 134, 134' and, when the machine is used for straight cuts without the templates, the milling heads may be adjusted by screws 135 and the sleeve blocks by nuts 67 at the top of the counterbalancing means 50.
Patent GB-1438508-A (GB)
Title: Adjustable steering column
IPC: F16B7/14
Filed: 1973-06-27
Abstract: 1438508 Adjustable steering column DEERE & CO 27 June 1973 [28 June 1972] 30516/73 Heading B7H An adjustable steering column has a steering shaft including front and rear tubular telescoping portions 60, 64 in splined connection for rotation together but permitting relative telescoping axial movement and a rotatable control rod 72 which extends through the rear portion 64 and which has a knob 74 at its rear end for manual rotation of the rod 72, the rod 72 being threadedly engaged at its front end with a wedge shaped screw member 82, the front end of the rear portion 64 also forming a wedging surface so that rotation of the control rod 72 by knob causes the wedge shaped screw member 82 to move into or out of locking engagement with the front portion 60. The front portion 60 is connected by a splined connector 56 to a steering shaft 54 which operates a hydrostatic power steering system (not shown) located in a housing 20 at the lower end of the steering column. The telescoping portions 60, 64 of the steering shaft are covered by a tube 90 releasably secured to a neck 26 on the housing 20 and by a sleeve 104 fixed to the rear end of shaft portion 64. The housing 20 is pivoted to the vehicle frame 10 at 34, thus allowing the inclination of the steering column to be adjusted, and is locked in its adjusted position by a pin 42 on a latch member 36 engaging notches 40 on a rack like member 38 fixed to the housing 20. The pin 42 is urged into engagement with the rack 38 by a spring 50 and can be moved out of engagement to allow the inclination of the steering column to be adjusted by operation of lever 48.
Patent GB-1034230-A (GB)
Title: Process of preparing benzo-ª-pyrones substituted at position 3
IPC: C07D311/22
Filed: 1964-08-04
Abstract: Benzo-g -pyrones of the general formula <FORM:1034230/C2/1> wherein R1 is alkyl of 1-10 carbon atoms or aryl and R2R5 are hydrogen, alkyl of 1-10 carbon atoms or halogen are prepared by reacting in the presence of POCl3 dimethyl formamide with ketones of the formula <FORM:1034230/C2/2> The dimethyl formamide may serve as a solvent for the reaction mixture.  A complex between the POCl3 and dimethyl formamide may first be prepared and this complex added to the ketone in dimethyl formamide.  Examples are given for the preparation of 3-methyl chromone, 3-methyl-6-chloro chromone, 3-methyl-8-chloro chromone and 3-phenyl-6-methyl chromone.
Patent GB-302030-A (GB)
Title: Improvements in and relating to photographic printing frames
IPC: G03B27/02
Filed: 1927-11-14
Abstract: 302,030. Allen, B. C. A.,and Douglas, W. L. Nov. 14, 1927. Enlarging.-In a printing frame for printing from flat negatives on to a roll of paper wound from one bobbin 4 on to another 5, and adaptable for enlarging, (a) the pressure board 10, is moved by a wedge block 11 rotated by a projecting handle 12 : (b) Means for inspecting the printing comprises a hinged flap 19, which, when opened, retracts through linkwork a hinged portion 23 of the pressure board 10, re-closure being effected by a spring 24 : (c) a non-actinic inspection window 25 is provided to inspect markings on the back of the sensitive roll : (d) the negative frame 6 is removable, provision being made to take negatives of various sizes : and (e) the frame is adapted as by screws 27 to fit on to an enlarging box provided with a negative holder and lens.
Patent GB-733204-A (GB)
Title: Improvements in article-handling systems
Inventor: OTTLEY GEORGE FRANK FREDERICK
IPC: B65G47/82
Filed: 1952-12-02
Abstract: 733,204. Conveyers. SPERRY GYROSCOPE CO., Ltd. Oct. 23, 1953 [Dec. 2, 1952], No. 30573/52. Class 78 (1). Articles are automatically transferred transversely from a conveyer track 13 by a pusher 20 when they strike a normally open switch 15 carried by a fixed stop 14, by the provision of means responsive to closure of the switch adapted to initiate a single cyclic movement only of the pusher, this movement consisting of a forward pushing stroke and a return stroke quicker than the forward stroke. As shown, the articles are fed along the track 13 by a pair of belts 11, and a one-revolution electromagnetic clutch 18 operated by the switch affects a single cyclic movement of the pusher through a Whitworth mechanism 24.