baber/WOPTO huggingface dataset:
Patent GB-497864-A (GB)
Title: Motion picture film treating apparatus
IPC: G03D3/13
Filed: 1937-08-26
Abstract: 497,864. Photographic processes. TERRANEAU, R. Aug. 26, 1937, No. 23428. [Glass 98 (ii)] A film-treating apparatus for developing &c. or drying includes a plurality of film-supporting rollers held in engagement with. driving-rollers by the tension of the film, and yielding means associated with each supporting roller to move the latter out of engagement with its driving- roller on release of the film tension. As shown, the film-supporting rollers 22, 22<1> are each carried on a removable standard 21 supported in a socket 19 of a beam 17. Shafts 24, 25 connected by gears 24g, 25g are driven in opposite directions by a shaft 30, and carry film-driving rollers 40, 41 respectively which engage alternate film-supporting rollers to drive them in opposite directions. Supportedl on a member 16 are shafts 51, 52 bearing a series of free rollers 49, 49<1>, 50. As shown, the film is fed over a roller 47, passes downwards' over the roller 49, upwards over a roller 54, and then over a roller 49<1> whence it passes to the driven roller 22. On leaving the roller 22, the film passes over the roller 50 and then upwards over a roller 53 and downwards over the next roller on the shaft 52 whence it passes! over the driven roller 22<1> and so on, the film finally passing from the apparatus over a roller 47<1>. The rollers 22, 221 are held in engagement with the driven rollers by the tension of the film so that if the latter breaks the rollers are automatically removed from the driven rollers. To effect this, the standard 21 carries a projection 60, Fig. 2, to which is pivoted an arm 62 by a pin 61, one end of the arm carrying a pin 66 engaging a hole 65 in the standard and having an extension which bears the roller 22. A counterweight 73 is carried on the arm 62 so that when the film breaks, the weight causes the arm to pivot about the pin 61 to move the roller. Alternatively, the slot 19 may contain a spring to press the standard upwards.
Patent GB-406051-A (GB)
Title: Improvements in and relating to compressors for air and gases
IPC: F04C29/00
Filed: 1932-08-22
Abstract: 406,051. Cooling rotary compressors. OGILVIE, H., 38, St. Augustine's Road, Camden Square, London. Aug. 22, 1932, No. 23474. [Class 110 (ii).] Oil is admitted as a jet or jets through orifices 8 in the inlet of a rotary compressor or at points of low compression in the barrel, to cool the air. The oil is supplied from a pipe 9.
Patent GB-675111-A (GB)
Title: Improvements in and relating to bus-bar assemblies and connector units therefor, for electric power distribution
Inventor: GILBERT THOMAS JOSEPH
IPC: H01R25/16
Filed: 1949-09-13
Abstract: 675,111. Junction boxes ; fuse-boards. GILBERT, T. J., and HESKETH, J. B. FERMOR-. Aug. 17, 1950 [Sept. 13, 1949], No. 23612/49. Class 38 (i). To enable a connector unit 7 to be easily inserted in a bus-bar assembly 3 having circular, part-circular or arcuate sectioned busbars 1, 1<SP>1</SP>, the unit has contact-pins 11, 11<SP>1</SP> with V-shaped recesses 14 to contact the bus-bars, the unit and the assembly being held together by a lever-catch 23, 24, 25 bridging both. Preferably the bus-bars are supported in insulating blocks 2 having bores 6 which guide the pins 11, 11<SP>1</SP> against the bus-bars, the pins being spring-urged into contact. To ensure correct coupling one pin 11<SP>1</SP> and the bore therefor are of different size from the others and projecting guides 22 on the unit slide into corresponding bores on the bus-bar assembly. The contactpins are connected to fuses 17 in the unit by conducting metal loops 18.
Patent GB-1286426-A (GB)
Title: Improvements in or relating to the production of contact metal layers on semiconductor components
IPC: H01L23/485
Filed: 1971-04-19
Abstract: 1286426 Coating semi-conductors with aluminium alloys SIEMENS A G 19 April 1971 [13 March 1970] 23685/71 Heading C7F [Also in Division H1] A semi-conductor is coated with an alloy of Al with Ag or Ti by applying to a surface of the semi-conductor a layer of an organic lacquer containing AgAlH 4  or Ti(AlH 4 ) 4  in suspension or solution, evaporating the lacquer solvent, and converting the lacquer layer into the Al alloy by thermal decomposition e.g. by heating to 200-300‹C. in an oxygen-argon atmosphere. The lacquer used may be a photo-sensitive lacquer or a nitrocellulose-ether-butylacetate lacquer. Parts of the lacquer layer may be removed by etching prior to the thermal decomposition step. The surfaces coated include SiO 2 , Al 2 O 3 , Si 3 N 4  and silicon. A final heating of 500‹C. ensures good adherence between the layer and the substrate.
Patent GB-314264-A (GB)
Title: Improvements in or relating to spanners and similar tools or appliances
IPC: B25B13/48
Filed: 1928-08-17
Abstract: 314,264. Thomas, A. E. Aug. 17, 1928. Pin and rigid-jaw wrenches; handles.-A pin spanner for cycle free-wheel mechanism comprises a head A with rim A<1> adapted to fit over the sleeve of the free-wheel, a central opening C<1> to take the centre spindle and diametric pairs of notches A<2>, A<4> adapted to take pins such as A<3> for engaging the opposite notches in the freewheel. The pins A<3> are secured in the notches by a wire ring B engaging an annular groove in the head. The notches A<2>, A<4> are cut partly through the head or entirely through, in the latter case a plate being riveted to the head to support the pins. The head is provided with an arm to form an operating lever or with one or two short arms C<1>, C<2> fitted with extensions D secured by bolts E, spanners F<1> being fitted at the ends of the extensions D.
Patent GB-619943-A (GB)
Title: Improvements in and relating to fluid-actuated electric switches
IPC: H01H33/32
Filed: 1944-11-29
Abstract: 619,943. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1944, No. .23856. Convention date, Nov. 29, 1943. [Class 35] [Also in Group XXXVII] In an electric switch operated -by fluidpressure, a valve 38 carrying an armature 44 is opened by energizing a winding 49. When the valve is fully open it is held by a permanent magnet 48 and the winding 49 is de-energized. Then a winding 67 or 71 is energized as the switch closes under normal or short-circuit conditions respectively. Either of the windings 67, 71, when energized, neutralizes the permanent magnet and allows the valve to reclose. Specifications 548,520 and 619.944, [both in Group XXXVII]. are referred to.
Patent GB-897200-A (GB)
Title: Improvements in and relating to dry shavers
IPC: B26B19/00
Filed: 1959-07-11
Abstract: 897,200. Dry shavers. WILKINSON SWORD Ltd., and RANDOLPH, H. B. Oct. 10, 1960 [July 11, 1959], No. 23879/59. Class 131. A dry shaver comprises an endless belt member movable along its length in sliding contact with a co-operating member, each of the members being perforated or slotted so that hairs extending through the perforations or slots of one member are cut on relative displacement of the members, and a motor to effect the relative displacement. As shown, a thin sheet metal guard 13, having apertures 13a, is detachably secured t o a casing 11 which is shaped to close the ends of the guard and encloses an endless flexible belt 14 apertured at 14a and pressed by a spring-urged bridge member 15 into contact with the guard and with a rubber-covered rotor 19 which partially houses an electric motor 18. Vanes 15a of the bridge member have belt-contacting surfaces 15b of the same curvature as the guard and cut hair collects in the spaces between the vanes. One edge of the guard and belt are toothed to provide a moustache trimmer 13b. In modifications the drive is provided by a clockwork motor or a ratchet driven fly wheel, a sprocket wheel engaging slots in the belt replacing the rubbercovered rotor. In a further modification a reciprocating motor as disclosed in Specification 824,257 is used.
Patent GB-282178-A (GB)
Title: Improvements in starch conversion products
IPC: C13K1/06
Filed: 1926-09-28
Abstract: 282,178. Stein, W. D. Sept. 28, 1926. Starch.-A starch conversion product for use in making bread &c. is made by subjecting starch to the action of acetic acid and then to heat. Glacial acetic acid mixed with a small quantity of ammonium persulphate or methylamine sulphate may be sprayed upon powdered starch not having excessive moisture content, and the treated starch is then placed in a steamjacketed converter which may be connected with a condenser for the distillation over of a portion of the acid. Or the starch may be treated with acetic acid vapour obtained by heating an acid acetate such as acid acetate of lime, the acidulated starch then being put into a steam-jacketed converter and the temperature raised to about 350‹ F.; heating in the converter is continued with agitation for 1-1“ hours. Specification 281,979, [Class 28 (i), Bread-making &c.], is referred to.
Patent GB-666931-A (GB)
Title: Improvements in and relating to means for fastening switch and like handles to rotary spindles
Inventor: ANDERSON GEORGE ALFRED REID
IPC: G05G1/12
Filed: 1949-09-16
Abstract: 666,931. Switch handles. DIAMOND, H., SWITCHES, Ltd. Sept. 15, 1950. [Sept. 16, 1949] No. 23949/49. Class 38 (v). [Also in Group XXIV] A switch handle 2 is fastened to the operating spindle 3 which is of non-circular section by means of a U-shaped frame which fits into a non-circular recess in the handle and which has holes'in its side arms 6 to receive the spindle ; a grub screw 14 clamps the spindle to the frame and also prevents axial movement of the latter. In the form shown specially adapted for a porcelain handle the side arms 8 are connected by a plate 12 with raised flexible torques 13 and the screw 14 is threaded into the frame and bears on a channel shaped plate 15 which is thus pressed, against the spindle 3. When the screw is tightened the frame deforms slightly and so grips the sides of the recess tightly. In a modification, Figs. 4-6 (not shown) the screw engages a nut located in a separate slot in the switch handle. This form is suitable for a handle of moulded plastic material.
Patent GB-1063747-A (GB)
Title: Improvements in or relating to control units for automatic temperature control systems
IPC: G05D23/19
Filed: 1965-06-04
Abstract: 1,063,747. Automatic temperature control. BARBER-COLMAN CO. June 4, 1965 [Aug.13, 1964], No. 23971/65. Heading G3R. An automatic temperature control system comprises a control unit in the form of a casing which houses all the components of the system with the exception of the final correcting element, the control unit being located so as to be responsive to the temperature being controlled. In a system for controlling the temperature of a room by controlling the flow of a heat exchange fluid the control unit is located in the room. The temperature sensing element is a thermistor forming part of a bridge circuit, another part of which is a manually adjustable potentiometer for setting the desired room temperature. The output of the bridge forms an error signal corresponding in polarity and magnitude to the sense and extent of the temperature error, the error signal being amplified by a transistor amplifier so as to control the value of the current flowing in the final correcting element which is in the form of an electromagnetically operated element which controls a fluid pressure operated valve in a conduit feeding the fluid to a heat exchange means in the room. A bi-metallic switch responsive to the temperature of the fluid in the conduit is effective to reverse the polarity of the direct current feeding the bridge circuit so that the system may be used for cooling instead of heating the room. The casing of the control unit, besides housing the temperature sensing thermistor, the temperature setting potentiometer and the transistor amplifier, also houses potentiometers for adjusting the zero point and the operating range of the system, positive and negative feedback devices which control the gain of the amplifier and introduce an integral term into the amplifier function respectively and a second thermistor which renders the system insensitive to voltage fluctuations.
Patent GB-170719-A (GB)
Title: Improvements in the shutter operating mechanism of photographic cameras
IPC: G03B9/58
Filed: 1920-08-19
Abstract: 170,719. Wenban, A. G. Aug. 19, 1920. Shutters, roller-blind.-Mechanism for operating roller-blind, and particularly focal-plane, shutters to give " time," " bulb," and " instantaneous " exposures comprises a pivoted pawl l normally engaging a ratchet ! i on a wheel j gearing with a spur pinion e on the top blind roller. A horizontally-sliding plate 2 is moved to the right by the shutter-release knob and a projection 5 upon it engages the lower arm 6 of the pawl lever thus releasing the shutter. When, as in Fig. 4, the mechanism is set for time exposures, a lever t, normally held in the full lens position by a pin 4 on the plate 2, moves on operation of the release so that the end w engages a pin m on the wheel j and retains the blind in the open position; when the release is allowed to return this position is maintained by the pawl l which re-engages the ratchet i until the release is operated a second time. For " bulb " exposures a sliding plate x is moved to the left, thus freeing a, pivoted catch s which, when the shutter is set for time exposures, is held in inoperative position by the engagement of the tooth z<1> with the arm 9. Thus freed, the hook s engages a pin 7 on the arm 6 of the pawl lever when the release is operated and retains the pawl l in inoperative position. Whilst pressure is maintained on the release the shutter is held in the open position by the engagement of the lever t with the pin m, as in " time " exposures. When the release is freed the arm t releases the pin m and the shutter closes. Towards the end of the movement the pin m strikes the end n of a lever connected to the hook s, which is thus moved to free the pawl l, the latter resuming the operative position. For " instantaneous " exposures, the plate x is moved further to the left and retains the lever t in inoperative position allowing the blind to run the whole course when the release is pressed; the action of the remaining parts is the same as in '' bulb " exposures. The winding-knob of the shutter comprises as usual two relatively-rotatable parts 11, 12. To prevent over winding, a pin 17 depending from the cap 11 passes through a slot in the part 12 and into the plate o.
Patent GB-462239-A (GB)
Title: Improvements in the manufacture and production of phthalocyanine dyestuffs
IPC: C09B47/04
Filed: 1935-08-29
Abstract: Phthalocyanine dyes are prepared by heating aromatic o-dinitriles or their derivatives or compounds capable of forming aromatic o-dinitriles with metal amides or metal cyanamides in the presence of a monovalent alcohol containing at least six carbon atoms, or any polyvalent alcohol or a phenol or mercaptan, or by heating the above reactants in the presence of organic diluents free from hydroxy and mercapto groups admixed with a mono- or polyvalent alcohol, a phenol or a mercaptan.  Compounds capable of forming aromatic o-dinitriles are defined as o-cyanobenzamide, phthalic amide, phthalic imide and o-cyanohalogenbenzenes. Diluents mentioned are methyl-, propyl-, butyl- and amyl-alcohols and mercaptans, ethylene - chlorhydrin, monoethanolamine, octyl-, dodecyl-, cetyl-, stearyl-and oleyl-alcohols, benzyl alcohol, dodecyl mercaptan, cetyl mercaptan, phenols, cresols, naphthols, glycol, polyglycols, thioglycol, thiodiglycol, glycerine, polyglycerine, dialkylolamines, trialkylolamines, sorbitol, erythritol octadecane-diol; generally it is preferable to use monovalent alcohols and mercaptans in amounts such that there is about one molar proportion to each molar proportion of metal amide or metal cyanamide present in the mixture. The amides, anilides and cyanamides of alkali and alkaline earth metals are specified as suitable reactants.  In examples: (1) phthalonitrile is heated with sodamide in a mixture of dimethylaniline and amyl alcohol or methanol or thiophenol or thiodiglycol; (2) phthalonitrile is heated with sodamide in a mixture of xylene and methanol; (3) phthalodinitrile is heated with sodamide or sodium cyanamide in benzyl alcohol; (4) phthalonitrile is heated with sodamide in a mixture of naphthalene and amyl alcohol; (5) 4-chlorphthalonitrile is heated with sodamide in a mixture of dimethylaniline and thiophenol; (6) phthalonitrile is heated with sodium cyanamide or lead cyanamide in presence of thiodiglycol.
Patent GB-967144-A (GB)
Title: Production of moulded articles of polyamides
Inventor: FISCHER HERMANN
IPC: B29C39/00
Filed: 1963-06-18
Abstract: <FORM:0967144/C3/1> Polyamides are moulded by polymerizing lactams in the presence of alkaline catalysts and activators in a mould in which the pressure is sub-atmospheric, preferably 5 to 50 mm.Hg. above the boiling pressure of the lactam to be polymerized.  In an example 8 parts of bis-(caprolactam-N-carboxylic acid)-hexamethylene-diamide (1,6) is dissolved in 92 parts of caprolactam at 80 DEG C., and 67 parts of caprolactam is melted with 33 parts of the reaction product of 3 parts of potassium with 97 parts of caprolactam and heated to 80 DEG C.  The two melts are then mixed and fed into a mould at 85 DEG C. and a pressure of 10 mm.Hg.  Numerous examples of catalysts and activators suitable for the process are given, specified lactams being pyrrolidone, piperidone, caprolactam, enantholactam, caprylolactam, capriclactam, laurolactam, C-methyl-e -caprolactam and dilactams.
Patent GB-1509575-A (GB)
Title: Hydraulic circuit
IPC: B66F9/22
Filed: 1975-06-05
Abstract: 1509575 Power steering systems MASKINFIRMA OVE BODIN AB 5 June 1975 [5 June 1974] 24235/75 Heading B7H An electrically powered vehicle is provided with an hydraulic circuit for operating a power steering system 17 and a working device, such as a fork lift or tilt mechanism, the hydraulic fluid being supplied from a single pump 2 and the circuit including an accumulator 12 for storing steering fluid, a pressure sensing device 21 for starting and stopping the pump when the pressure in the accumulator circuit is respectively above or below a respective pre-determined pressure. A distributing device 6 includes spool 34, 44 electromagnetically movable against springs 33, 34 and is connected to the steering system via line 11 and to the working device via line 7 and valve 9. IF valve 9 is actuated when there is sufficient accumulator pressure the pump starts and suuplies the valve via line 5, spool 34, and lines 35 and 7. If accumulator pressure drops the sensing device is actuated to start the pump and move spools 34, 44 so that fluid is supplied to the accumulator.
Patent GB-1460109-A (GB)
Title: Continuous casting of a metal or alloy and the manufacture of a rolled 'roduct
IPC: B22D11/06
Filed: 1974-05-31
Abstract: 1460109 Continuous casting; making wire or sheet metal SECIM and SOCIETE DE VENTE DE L'ALUMINIUM PECHINEY 31 May 1974 [26 June 1973] 24244/74 Headings B3A and B3F In a continuous casting machine with a mould formed by a grooved wheel 2 and belt 3 and with two or three wheels for the return path of the belt, the point where the belt 3 leaves the wheel 2 can be varied (by movement of the bearing of an adjacent return wheel 7). By this means, the length of the mould and therefore the temperature of the east strand 10 leaving the mould can be determined, dependent also on the determinable speed of the spraycooled wheel 2. The strand 10 is passed to rolling stands at the required temperature and speed, for working to produce wire or sheet, e.g. of Al or Al alloy. The displacement of the wheel 7 may be automatic in dependence on the temperature of the casting at the exit from the mould or at the inlet to the roll stand. Details of alloys, casting and rolling speeds and temperature and power consumption are given. As shown, the bearing of the wheel 7 is displaced by a screw which may be pivoted, with the bearing guided or with springs at one end of the screw so that the belt tension is maintained. Alternatively, adjustment of the position of a wheel 5 by a screw jack 8 may maintain tension. In another embodiment, the bearing of the wheel 7 is movable and fixable in a guide such as a slot which may be arcuate. A gear rack may move the bearing and the tensioning movement of the wheel 5 may be consequent on the displacement of the wheel 7.
Patent GB-811204-A (GB)
Title: Improvements in liquid sprayers
IPC: B65D83/16
Filed: 1957-07-31
Abstract: 811,204. Forcing liquids by gaseous pressure. CARLSSON, A. July 31, 1957, No. 24308/57. Class 102(2). The container 1 of a lqiuid sprayer holding liquid under gaseous pressure has an opening 2 closed by a device 4 having a flange 3 of less diameter than the opening 2 and seating under gas pressure on a packing 17. The device 4 carries a manually operated discharge valve 5. The flange 3 and opening 2 may be eliptical so that there is no gap spanned by the packing.
Patent GB-689917-A (GB)
Title: Improvements in or relating to screening plant for coke and other broken material
IPC: B07B1/00
Filed: 1950-10-05
Abstract: 689,917. Screening apparatus. ALDRIDGE & RANKIN, Ltd., ALDRIDGE, F. D.. and GREEN, R. W. Nov. 1, 1951 [Oct. 5. 1650], No. 24349/50. Class 117 [Also in Group XXX] A screening apparatus for coke &c. is mounted on a self-propelled vehicle, the power unit of which is arranged to drive an elevator and one or more vibratory grading screens. As shown, the vehicle power .unit 1 includes a transverse power take-off shaft 6. A girder framework 9 ... 13, 20 supports an elevator driving shaft 15 driven through spur gearing 40 and chain 45 from a lay shaft 38 driven by belt 42 from shaft 6. The lower shaft 16 of the belt or chain and bucket elevator is carried in bearings 17 in the side walls of a loading trough 19 which is pivotally supported by trunnions 22 and adjustable links 23, by which the tension of the elevator chain may be varied. Coke from the elevator is delivered through shoot 31 on to the screening apparatus. A pair of vibratory screens are suspended by inclined resilient links 24. Each screen comprises a main frame 26, 26a and a screen frame 27, 27a, supported beneath the former by means of springs 28 and links 29 the pivots 30 of which are so disposed as to cause the material to travel from left to right. Beneath the screens 27, 27a are shoots 32, 33 respectively delivering the screened coke on the left and right sides of the vehicle. The remaining coke is discharged in front of the vehicle, if desired through a shoot. For vibrating the screens, a transverse shaft 34 is belt-driven from the lay shaft 3 and is provided with cranks or eccentrics coupled by connecting rods 33 to the frames 26, 26a. The power unit may also drive crushing apparatus supported adjacent to the lower end of the elevator.