baber/WOPTO huggingface dataset:
Patent GB-1197227-A (GB)
Title: Polymerizing Butadiene
IPC: C08F136/06
Filed: 1967-10-03
Abstract: 1,197,227. Polymerizing butadiene. FIRESTONE TIRE & RUBBER CO. 3 Oct., 1967 [3 Oct., 1966], No. 45060/67. Heading C3P. Polymers of 1,3-butadiene are made by polymerizing butadiene containing less than 100 p.p.m. of an alpha-acetylene, alone or with another hydrocarbon monomer, at a temperature of 212‹ to 400‹ F., in the presence of a lithium hydrocarbon catalyst and an allene of the formula RHC = C = CH 2  in which R is selected from C 1  to C 5  alkyl or alkenyl groups, phenyl, or hydrogen. The polymerization may be in bulk or in an inert diluent. Specified other monomers are isoprene and styrene.
Patent GB-1094387-A (GB)
Title: Process for producing 5'-inosinic acid
Filed: 1965-10-26
Abstract: 51-Inosinic acid is obtained by culturing Aspergillus sojae ATCC 16320 in an aqueous nutrient medium containing histidine under aerobic conditions at a temperature of 20 DEG  to 40 DEG  C. and a pH of 4 to 9 in the presence of hypoxanthine or adenine, their nucleosides or natural substances, culture liquors or mixtures containing them.  Aspergillus sojae ATCC 16320 is a mutant strain obtained by treating the parent strain, Aspergillus sojae with ultra-violet light.  The culture medium may be either a synthetic culture medium or a natural nutrient medium containing a carbon source, e.g. carbohydrates, glycerol, mannitol or sorbitiol, a nitrogen source, e.g. inorganic or organic salts or compounds or natural nitrogen-containing substances, and inorganic compounds, e.g. magnesium sulphate, sodium phosphate, potassium dihydrogen phosphate, potassium monohydrogen phosphate or iron salts.  A specified culture liquor which may be used as a source of hypoxanthine or adenine is that obtained from the fermentative production of hypoxanthine using Brevibacterium ammoniagenes.  The product may be obtained in the form of a salt (e.g. sodium 51 inosinate) and may be separated from the fermentation filtrate by ion-exchange resin treatment, extraction with solvents, precipitation with metallic salts or chromatography.
Patent GB-1349263-A (GB)
Title: Brake system for tangential belt-drive spindles of spinning and doubling machines
IPC: D01H7/22
Filed: 1971-09-30
Abstract: 1349263 Spindle brakes SKF KUGELLAGERFABRIKEN GmbH 30 Sept 1971 [6 Oct 1970] 45598/71 Heading D1D A spindle brake arrangement comprises a roller 24 for lifting the drive belt 12 off the spindle wharve 20, the lift-off roller being movable by at least two spring strips 32, 34 mounted on a common support 30 with the strip ends being spaced apart. The bearing 44 for the lift off roller 12 may carry the spindle brake 40. Roller 22 presses the belt against the spindle wharves 20, 20'.
Patent GB-1396439-A (GB)
Title: Hydraulic steering limitation means for hydrostatic steering installations more particularly for motor vehicles
IPC: B62D5/28
Filed: 1973-10-01
Abstract: 1396439 Hydrostatic powered steering ZAHNRADFABRIK FRIEDRICHSHAFEN AG 1 Oct 1973 [6 Oct 1972] 45682/73 Heading B7H Hydrostatic steering comprising a servo pump 2, a control pump 7, a control valve 6, and at least one servomotor 13 having pressure chambers 131, 132 has two disconnecting valves 14, 15 arranged in the end walls of the servomotor or in the piston to limit the point of piston movement and thereby obviate damage. The control valve 6 is actuated hydraulically through pipes 9a, 10a, or mechanically. A spring pressed piston operated valve 18 and a non-return valve 17 are provided in circuit with valve 14. In operation, if the pressure in pipe 10 exceeds that in pipe 9 control valve 6 is moved into position c to pressurize chamber 132. Piston 133 moves to the left and opens valve 14 through pin 141 to cause the piston of valve 18 to fall due to decrease in pressure at its lower side, thereby connecting pipe 3 with a by-pass 20 so that pump 2 delivers directly into the return flow. Manual steering without hydraulic assistance is now only possible. If the direction of steering is changed after disconnection then control valve 6 is moved to position a to connect chamber 131 to the pressure side of pump 7 and close valve 18 and shut off the return flow through by-pass 20. When piston 133 reaches its right hand position the valve 15 is opened by pin 151. In another embodiment, the disconnection valves (24, 25) Fig. 2 (not shown) are combined with non-return valves which allow flow only in the direction towards chambers, respective chamber (231, 232). In another embodiment, Fig. 3 (not shown), disconnecting valves (34, 35) are arranged on opposite sides of a piston (333).
Patent GB-1017007-A (GB)
Title: Improvements in or relating to sound reproducing machines
Inventor: CHURCHILL JOHN ADRIAN
IPC: G11B17/16
Filed: 1963-11-20
Abstract: 1,017,007. Gramophone centre-posts. FOSTER-MALLARD Ltd. Nov. 17, 1964 [Nov. 20, 1963], No. 45834/63. Heading G5R. A rotary post, particularly for supporting a stack of records for playing on both sides, has concentric portions 14, 15 and an intermediate step-forming portion 16. An actuator pin 37, typically lowered by the mechanism of Specification 909,851 engaging the knob 42, rocks a finger 24 about a pin 25, the sprung member 27 sliding the record 43 clear of the step 17, while the remaining record(s) 44 are retained against sliding by the keeper 19. The falling record rests temporarily on the shelf 33 and this limits the rightward excursion of the member 27 (Fig. 4, not shown). In the absence of a record to be fed, the member 27 can swing clear of the post (Fig. 5, not shown) to actuate a machine stopping means (not detailed). The heel 26 and the member 27, in the normal playing position shown, locate the lowest record 44 concentric with the centrepin portion 14.
Patent GB-1026957-A (GB)
Title: Improvements in or relating to automatic lathes
IPC: B23Q5/34
Filed: 1964-11-11
Abstract: 1,026,957. Automatic lathes. A. BECKLER. Nov. 11, 1964 [Nov. 27, 1963], No. 45914/64. Heading B3T. In an automatic lathe having a tool turret mounted on a slide on the lathe bed, the turret 22, Figs. 1 and 2 (not shown), is positioned with its axis at right angles to the axis of the lathe spindle 3. Bearings 5a and 5b on the slide 5 carry a hollow shaft 6 within which is concentrically mounted a shaft 24 to which the turret 22 is attached. A cam support member 7 secured to the shaft 6 and rotatable therewith carries a cam 15 which is continuously rotated by a worm-wheel 13. The cam 15 is held in cooperation with a follower 19 by a spring 120 so that during the rotation of the cam reciprocation of the turret and slide is effected. Transverse movement of the turret and cutting tools is effected by a cam 17 on the member 7 which actuates a push-rod 34. Indexing of the turret is effected by cam means 33 which rotates with the member 7 and shaft 6 to disengage the latch lever 30. Clutch means 26, 27 permits slipping of the drive for the indexing operation whilst the pawl 30b is engaged on the turret during a machining operation. Selected positioning of the cams permits a variety of sequential movements of the turret to effect required machining operations on a workpiece.
Patent GB-1286358-A (GB)
Title: Improvements in or relating to telecommunications systems
IPC: H04Q3/00
Filed: 1970-09-28
Abstract: 1286358 Automatic exchange equipment SIEMENS AG 28 Sept 1970 [30 Sept 1969] 46012/70 Heading H4K A telecommunications system where subscribers are permanently assigned subscriber numbers which can be used at the substations of a plurality of exchanges wherein each subscriber is provided with a key which has stored thereon subscriber number information and store write and read commands which key is insertable in a substation to cause the subscriber number to be associated with that particular substation by having the information written into a store at the exchange serving that substation. In the non-hierarchical system described each exchange includes an arrangement VSt including a store Sp fed from an analyser stage AS. Each substation Tst includes a "keyhole" where the code marks on the key, Fig. 2 (not shown), are read by means of photo-cells F 1-5  which are illuminated by lamps L 1-5 . The particular read or write instruction is analysed to close switches Sl or Se respectively and the subscriber number digits then pass through the closed switch to the respective input of the store. The substation identity is also supplied to an input f and stored. On interrogation by input g the store gives output h details of the substation through which the particular subscriber is accessible. If the switch Sl is closed the subscriber number is applied at input 1 and this causes the number to be erased from the store.  The elongated key carries the write information on one edge and read information on its other edge and is inserted so that the required edge is sensed. In the construction described the key is a transparent strip with opaque marks forming the code elements. Notches in the edge of the key ensure its correct location in the keyhole for reading and also ensure that the same information cannot be read twice.
Patent GB-1514278-A (GB)
Title: Pyrrolidones and process for preparing them
IPC: C07D207/26
Filed: 1975-11-06
Abstract: 1514278 10-Azaprostaglandins HOECHST AG 6 Nov 1975 [6 Nov 1974 24 June 1975] 46044/75 Heading C2C The invention comprises 10-azaprostaglandins of the Formulµ I and XIV wherein R<SP>1</SP> is C 1-6  alkyl or a C 3-7  cycloalkyl radical optionally substituted by one or more C 1-4  alkyl or C 1-4  alkoxy radicals; R<SP>2</SP> is H or C 1-4  alkyl; R<SP>2</SP>' is C 1-4  alkyl; R<SP>3</SP> is C 1-10  alkyl which may be substituted by: (i) C 1-5  alkoxy, allyloxy or C 1-5  alkylthio; (ii) a phenoxy radical optionally substituted by one or more halogen atoms or C 1-3  alkyl, C 1-3  haloalkyl, phenoxy or halophenoxy radicals; (iii) a phenyl, furyl, furyloxy or benzyloxy radical which may be substituted by one or more C 1-3  alkyl radicals; (iv) a trifluoromethyl or N-methylpropionylamino radical; or (v) a C 3-7  cycloalkyl; m is 1 or 2 and n is 2 or 3, and wherein the side chains in the 3- and 4-positions of the pyrrolidone ring are trans to each other, and the double bond in the side chain in the 3-position is in the cis configuration; and salts thereof when R<SP>2</SP> is H, and their preparation by standard methods. Various 2-pyrrolidones are prepared as intermediates in the preparation of the above 10- azaprostaglandins. Pharmaceutical compositions, suitable for oral or parenteral administration, contain the 10- azaprostaglandins of Formula I above or salts thereof in admixture or conjunction with pharmaceutically suitable carriers. The compounds possess bronchodilating and blood pressure lowering actions and luteolytical properties. They also inhibit the secretion of gastric juice.
Patent GB-1372072-A (GB)
Title: Apparatus for severing and stacking films
IPC: G03D15/04
Filed: 1971-10-04
Abstract: 1372072 Delivering sheets AGFA-GEVAERT AG 4 Oct 1971 [2 Oct 1970] 46062/71 Heading B8R Apparatus for severing photographic film into strips and stacking the strips comprises means for feeding the film 2 intermittently to a severing means, e.g. rollers 3, 4 feeding film past a transverse cutter blade 5 operated by an electromagnet 6, means for advancing the strips lengthwise, e.g. conveyer belts 7, 8, and a collecting chamber open at one end to receive the severed strips and along one side for withdrawal of a stack of strips. The chamber may comprise upper and lower parallel rails 19, 20 coated in a friction material such as rubber except for the inlet end of the rails which diverge and are polished. An adjustable stop 23 may be provided in the chamber, the stop being movable into an inoperative position by a length of film not required to be severed by the blade 5. The rails may be narrower than the width of the strip or may be indented so that the strips protrude laterally from the rails. The belts may engage only the sides of the strips and the gap between upper and lower belts may be greater than the strip thickness, a freely rotatable roller 18 movable into the plane of the belts 7, 8 controlling the discharge of strips. A holder incorporating stack conveying means may be provided adjacent the open side of the chamber, film wallets from the stack being held open by the holder for reception of a stack of strips.
Patent GB-1298237-A (GB)
Title: Composition and process for the permanent waving of hair
Inventor: SIMMLER WALTER
IPC: A61Q5/06
Filed: 1970-09-29
Abstract: 1298237 Epoxy-organosilanes BAYER AG 29 Sept 1970 [4 Oct 1969] 46284/70 Heading C3S [Also in Division D1] Epoxy-organosilanes of the formula wherein a is 2 or 3, b is 0 or 1, R is C 1-6  alkyl or -(-CH 2 CH 2 O-) n -CH 3  and n is 1, 2 or 3, are prepared by reacting epoxybutane or allylglycidyl ether with an appropriate Si-H compound, or by peracetic acid oxidation of a corresponding alkenyl compound to form an epoxide group across the double bond. Exemplified compounds are 3-(trimethoxysilyl)-propyl-(1) glycidyl ether, 3-(triethoxysilyl)-propyl-(1)-glycidyl ether, 3 - (methyldiethoxysilyl) - propyl- (1) - glycidyl ether and 3 - (methyldiisopropoxysilyl)-propyl-(1)-glycidyl ether. Uses.-Hair waving, for which purpose they are employed in alcoholic or aqueous alcoholic solutions.
Patent GB-987746-A (GB)
Title: Process for producing stable diisocyanate compositions
IPC: C07C241/00
Filed: 1963-11-22
Abstract: A stable liquid undistilled tolylene diisocyanate composition is prepared from an unstable liquid undistilled tolylene diisocyanate composition containing material which possesses an infra-red absorption maximum at a wavelength of 7.37 microns and which deposits solid material on standing at room temperature, by heating the unstable composition to between 100 DEG  C. and its boiling point, and adding phosgene until the mixture, after solvent removal and degassing, is substantially free of material with an absorption maximum at 7.37 microns. The heating may be conducted under pressure, and an inert organic solvent such as toluene, the xylenes or mono- or dichlorobenzene may be used.
Patent GB-1114232-A (GB)
Title: Improvements in or relating to means for cleaning surfaces
IPC: B60S1/52
Filed: 1963-11-25
Abstract: 1,114,232. Spray-producers. A. W. RODGER. 24 Nov., 1964 [25 Nov., 1963; 17 Dec., 1963: 23 Sept.. 1964], Nos. 46386/63; 4968l/6 and 38860/64. Heading B2F. [Also in Divisions A4 and F4] A nozzle for supplying cleaning liquid to a surface comprises a resilient sealing member engageable with an opposed surface to prevent passage of unpressurized liquid from the nozzle, and displaceable by pressurized liquid to open a narrow elongated slot through - which a wide substantially continuous curtain "of liquid is discharged over the surface to be cleaned. Fig. 2 illustrates a nozzle to which liquid is supplied via a conduit 38 to be discharged over a vehicle headlamp glass 6 through a slot formed by the displacement of a rubber skirt 43 from a surface 40A by the liquid pressure. In an alternative nozzle the rubber skirt 43 is omitted and the slot is formed by displacement of the body of the nozzle from the surface of the headlamp glass 6 by liquid pressure against the action of a spring. Further nozzles are described having rubber skirts and differing body constructions.
Patent GB-1470630-A (GB)
Title: Manufacture of thermistor devices
IPC: H01C1/034
Filed: 1975-11-11
Abstract: 1470630 Thermistors STANDARD TELEPHONES & CABLES Ltd 11 Nov 1975 46522/75 Heading H1K In a process of manufacturing thermistor devices, the resistance of thermistor layers 3 applied between pairs of film conductors 2, Fig. 1 (not shown) on an electrically insulating substrate 1 is adjusted, if necessary, e.g. by using a laser, the substrate being then diced to provide individual devices. A film conductor material, typically platinum based, and a thermistor ink with or without a glass phase are applied to the substrate by screen printing, thefilm conductor material being fired before the application of the ink, and the ink also being fired to provide the thermistor layers 3. An encapsulating layer 5, Fig. 7 (not shown), of glass or epoxy resin is provided over each thermistor layer 3 before or after dicing the substrate, similarly, wire or tape leads 6, Fig. 10 (not shown), are attached to exposed portions 2a of the film conductors 2 by brazing or welding before or after providing for encapsulating layers 5 on the diced or undiced substrate. The exposed portions of the film inductors may be of an enlarged area.
Patent GB-1069804-A (GB)
Title: Apparatus for and method of making foam
IPC: B05B7/00
Filed: 1964-06-26
Abstract: Foam is made by placing in a foam forming liquid a diffuser comprising an inner perforated tube to which air is supplied, and an outer tube having a plane surface consisting of metal gauge preferably of mesh size less than 100 microns.
Patent GB-1111131-A (GB)
Title: Improvements in lap doffing arrangements for scutchers
Inventor: SINGLETON FRANK
IPC: D01G27/04
Filed: 1963-11-29
Abstract: 1,111,131. Lap forming arrangements. T. M. M. (RESEARCH) LTD. 25 Feb., 1965 [29 Nov., 1963], No. 47314/63. Heading DIN. A lap doffing arrangement associated with, for example, cotton scutcher has means for moving the lap axially while holding the lap, roller against movement so as to draw the lap away from the roller. The lap is preferably doffed from the lap driving drums of a scutcher onto a traversing carriage and, while two scutchers are arranged side by side, two carriages may move completed laps alternately to an intermediate position or a single carriage may move between the two seutchers and an intermediate position. At the intermediate position, a lap pin magazine is arranged-to cause the or each carriage to push a pin towards a doffed scutcher and into a lap roller. After having been released from pneumatically operated loading heads 14, Fig. 5, a lap rolls onto a carriage 21 which is set in motion to move in the direction of the lap axis immediately a catch 22 has borne down on the end of lap roller 17. The lap is severed before rolling onto the carriage. Lowering of the loading heads 14 causes levers 35 on each side of the machine to lift lap roller 17 from the ends of levers 31g 32 by which it is supported after is removal to a position under the loading heads.
Patent GB-1277920-A (GB)
Title: Improvements in and relating to electronic devices
IPC: H01C7/04
Filed: 1969-09-26
Abstract: 1277920 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Sept 1969 [30 Sept 1968] 47431/69 Heading H1K Grains 11 of an electronically active material are embedded in a foil 13 of insulating material such as a polyurethane in such a way that each grain projects from both surfaces of the foil, each grain consisting of a core 11 of lowresistivity material partly enveloped by a layer 12 of high resistivity material, both the core and partially enveloping layer projecting from the foil. The core may be of aluminium with a partially enveloping layer of aluminium oxide, electrodes 14, 15, 16 of copper being used to contact the oxide on one side and the core on the other side of the foil. Alternatively the core may be of iron oxide wherein some of the iron ions have been replaced by titanium ions, and the partially enveloping insulating layer is formed by oxidizing the core surface, copper again being used as the electrode and contact material. The grains may each include a PN junction, and the complete devices may be used as voltage dependent capacitors, NTC resistors or photoconductive devices.
Patent GB-1084569-A (GB)
Title: Recreational apparatus
IPC: A63B69/00
Filed: 1965-11-09
Abstract: 1,084,569. Exercising apparatus. NISSEN CORPORATION. Nov. 9, 1965 [Nov. 30, 1964], No. 47477/65. Heading A6M. A trampoline apparatus, which may be similar to that of Specification 978,069, has a pair of demountable sloping backstop frames 21 with panels 22 resiliently flexible with regard to the frames to prevent a performer falling beyond the end of the trampoline bed and to cause him to rebound back on to the bed. Each backstop frame may be supported by a frame 48 mounted on telescopic legs 40 linked to the bed by hinged struts 44.
Patent GB-1309272-A (GB)
Title: Electrical switches and to coding keyboards using such switches
IPC: H01H29/00
Filed: 1970-10-06
Abstract: 1309272 Keyboards; coding MECHANICAL ENTERPRISES Inc 6 Oct 1970 [15 Oct 1969] 47512/70 Heading G4H [Also in Divisions B6 and H1] A deformable, resilient tube 46 contains a conducting liquid (mercury) and when edge 58 on actuator 42 crimps portion 50 of tube 46 the conducting liquid is parted to break the circuit between the ends of tube 46. Actuator 42 has a push-button 64 on its upper end and in the normal position it is urged upwards by spring 66 so that in the normal position there is an open circuit between the ends of tube 46, the circuit being closed when push-button 64 is depressed. Tube 46 has on its ends sleeves 56 having contacts 52, 54 which fit into holes 118, 120 in a block 74, a spring clip 94 fitting over block 74 such that contact 52 engages the lower limb 98 of clip 94, contact 54 engaging a strip conductor 88a, Fig. 4, on a flexible tape 84 below block 74 carrying an array of parallel conductors 88, also in Fig. 6 (not shown). Spring clip 94 has extensions 104 which overlie holes 80 in block 74, a number of conductive elements 76, 78 fitting in prearranged pattern in some or all of holes 80, being engaged at their upper ends by extensions 104 and contacting at their lower ends some of conductors 88 on strip 84. Some of elements 76, 78 may consist of resistors such as 78a and diodes such as 78b. The electrical circuit, when tube 46 is conducting, is from element 88a, through contact 54, tube 46, contact 52, clip 94, extensions 104 and elements 76, 78 to conductors 88. Ten of these switches are clipped into a keyboard providing an input to a computer &c. and the arrangement and composition of elements 76, 78 gives a coded input to the computer when push-buttons 64 are depressed. There may be bowed strip springs 140, Figs. 9, 10 (not shown), snapping overcentre when push-buttons 64 are depressed to give a positive feel. Instead of knife edge 58 on actuator 42, tube 46 may be crimped by a coil spring 156, Fig. 11 (not shown), suspended from actuator 42. The keyboard comprises a frame 22 in which the switches are mounted by projections 72 clipping into grooves 136, 138 on walls 132, 134, 135 on frame 22 and flexible tape 84 carrying conductors 88 is secured to frame 22 by adhesive, tape 84 extending along one step in the frame and bent through two forty-five degree bends at its end and back along the next step &c., the bends being covered by insulating tape 133. Push-buttons 64 bear indicia.
Patent GB-1071829-A (GB)
Title: Industrial lift trucks
IPC: B66F9/08
Filed: 1964-11-24
Abstract: 1,071,829. Masted lift trucks. EATON YALE & TOWNE Inc. Nov. 24, 1964 [Nov. 29, 1963], No. 47707/64. Heading B8H. The movable mast section 11 of a masted lift truck extends, when in its lowermost position, above the fixed mast section 10 and is guided by rollers 18 detachably mounted on the top of the mast section 10 and by rollers 17 mounted at the bottom of the mast section 11. The rollers 18 are mounted on stub shafts 19 through which pass the stems 24 of slide bearing members 25 engaging the webs of the mast section 11. The load carriage 12 is provided with guide rollers running on the mast section 11 and is raised by chains 16 passing over sheaves 15 mounted on the upper end of an hydraulic ram 13 which is pivotally supported on the mast section 10 and which is guided at its upper end by a guide rod 14a secured to the mast section 11. On extending the ram from its fully retracted position, the load carriage is raised with respect to the mast sections 10, 11 until the upper end of the ram engages a cross-member at the upper end of the guide rod 14a, whereafter further extension of the ram raises the section 11 and the load carriage. In a modification, Figs. 7, 8 (not shown), the slide bearing members 25 are omitted and rollers 28 are provided to engage the edges of the flanges 11a of the mast section 11.