baber/WOPTO huggingface dataset:
Patent GB-914436-A (GB)
Title: Improvements in or relating to data processing apparatus
Inventor: BINGHAM DESMOND GORDON
IPC: G06F13/16
Filed: 1959-12-04
Abstract: 914,436. Multiplexing in data processing. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Nov. 22, 1960 [Dec. 4, 1959], No. 41249/59. Class 106 (1).  A multiplexing system provides that the integers of data items being transferred concurrently between a main store and processing equipments are interleaved on a common highway. An integer may be a binary-coded decimal digit forming part of a data or instruction word. The main store 13 is preferably a magnetic core memory operating in read and write cycles whereby an integer read from the memory may be regenerated in the position from which it was read (by opening gate 62), and is divided into storage sections 14 (rows) and storage positions (columns) defining sets of storage locations 16, each containing an integer. With each storage position is associated a read-out pulse generating stepping register. The registers 22 to 26 read out the most significant integers first, the registers 25, 27 and 29, the least significant. Transfer pulses on lines 6 to 12 are generated by a pulse distributer (see below) and selection of a storage section is made by control 43 gating a transfer pulse on to a line 39-only the gates controlling two of the lines are shown-while transfer pulses gated to a stepping register select the storage position. Successive transfer pulses applied to a stepping register successively activate the lines 17 to read out the selected integers to a highway 44. Each of the transfer pulse lines 6 to 12 is associated with a particular function and the repetition frequency of the pulses depends on the time taken to perform the function. This line 7 controls transfer of data from memory to a mill 55 and line 8, transfer from the mill to memory. The pulses on lines 7 and 8 are separated by fourteen time intervals. Line 6 controls transfer from memory to a printer 46 and pulses on this line occur three times in fifteen time intervals. The pulse distributer is a conventional stepping register 2, each stage 3 comprising a hard valve trigger circuit, and of which the outputs 4 are commoned in or circuits 5 to give different pulse repetition frequency rates on the channels 6 to 12. In operation, a transfer pulse on line 7, for example, is gated by control to one of the registers 32a to 34a, to one of the lines 39 and to open gate 53 leading from the highway 44 to the mill 55. The instruction word specifying this transfer is held in a particular register in control 43, the presence of a word in the register leading to the control signals which are coterminous with the transfer pulse. A counter controls the number of transfer pulses associated with an instruction and after the last clears the register. In the embodiment described, transfer pulses do not occur simultaneously on two channels but it is stated that this may be arranged on channels controlling input and output, respectively, to the memory.
Patent GB-1125526-A (GB)
Title: Multilayer circuit boards
IPC: H01R12/51
Filed: 1966-09-16
Abstract: 1,125,526. Printed circuits. LITTON INDUSTRIES Inc. 16 Sept., 1966 [22 Sept., 1965], No. 41578/66. Heading H1R. In a multilayer printed circuit board of the kind comprising plated holes which interconnect terminal pads at different levels in the board, at least one end of one such hole is internal of the board, and said hole, if produced, would intersect a conductor at a further level. As shown, Fig. 2, terminal pads 14 are formed on both sides of an insulating board 10, e.g. by etching a double-sided copper-clad plastics or epoxy-glass board. Interconnection is provided where required between pads 14 on opposite sides of board 10 by forming a hole 11 in the relevant pads and the intervening board, e.g. by drilling, etching, or punching, and plating the wall of the hole. A second board 10<SP>1</SP> bearing conductors 12 and pads 14 on both sides thereof is bonded to board 10 by means of a layer 16 of plastics material, necessary interconnections between pads on board 10 and 10<SP>1</SP> being made by forming holes 11<SP>1</SP> through the relevant pads and the intervening boards 10, 10<SP>1</SP> and layer 16 and plating the wall of the hole. A third board 10<SP>11</SP> is bonded to board 10<SP>1</SP> by plastics layer 16<SP>1</SP>, interconnections through boards 10, 10<SP>1</SP>. 10<SP>11</SP>, being effected by the formation of plating and through holes 11<SP>11</SP>. The process is repeated until the multilayer board is complete. Solid metal may be deposited in the holes if desired. A board already having a plated through hole may be bonded in the stack; and two multiboard laminates may be bonded together.
Patent GB-1267693-A (GB)
Title: Improvements in or relating to explosive-actuated tools for driving studs, nails or other anchoring members into hard materials
Inventor: WACKROW ROGER DAVID
IPC: B25C1/18
Filed: 1969-08-21
Abstract: 1,267,693. Cartridge actuated fastener driving tools. BIRMINGHAM SMALL ARMS CO. Ltd. 24 Aug., 1970 [21 Aug., 1969], No. 41667/69. Heading B4C. A cartridge actuated fastener driving tool of the kind including a fastener driving piston comprises a cartridge magazine holder pivotally mounted in the tool, means for firing a cartridge, and means for ejecting a spent cartridge from a cartridge chamber, the tool being so arranged that in a first or normal position, the holder is aligned with the chamber. When a firing pin of the firing means is aligned with the chamber to permit firing of a cartridge the holder is located in a second position and when the ejecting means is operated the holder is moved to a third position. As illustrated in Figs. 1 and 3 a magazine 10 is held within holder 7 and the holder is normally held in its first position by springs 18, 74. Application of the muzzle end of the tool to a workpiece effects depression of rod 21 and consequential displacement of the holder against bias of spring 18 to the second position (Fig. 2, not shown). The firing pin 8 is then aligned with the cartridge chamber. Depression of trigger 22 about pivot 23 causes clockwise rotation of hammer 25 against bias of spring 27, the hammer being released when catch 28 is disengaged from projection 30 by engagement of stop 31 with a cam surface on the catch. Removal of the tool from the workpiece returns the tool to the condition of Fig. 1. Clockwise rotation of pivoted lever 32 will firstly cause pin 37 to pivot holder towards the Fig. 3 position and then cause pivoting of the holder to the Fig. 3 position and downward displacement by pin 35 of an ejector 34. The ejected cartridge falls out the bottom of handle 2. The polyurethane foam buffer 15 or a spring (not shown) will return the piston 12 after a fastener driving operation. In an alternative embodiment (Fig. 6, not shown) the firing pin is carried by the workpiece engaging rod (41). In the embodiment of Fig. 7 the firing pin 44 is carried by trigger 45 which is slidable substantially parallel to the piston axis. A catch 53 pivotally mounted on the trigger engages in a recess 54 to prevent trigger movement. A workpiece abutting rod 55 cams the catch 53 from the recess to permit trigger movement when the muzzle end of the tool is pressed against a workpiece. In the embodiment of Fig. 8 the trigger is integral with the magazine holder and the firing pin is carried thereby. A spring biased pivoted catch 62 has a free end portion normally engaged in groove 64. The end 65 of the groove prevents rotation of the trigger/holder combination into the second position unless the tool is pressed against a workpiece in which case the rear end of rod 66 will extend into the groove 64 and act to cam the catch 62 past the end 65. The embodiments of Figs. 7 and 8 may include cartridge ejection means similar to that of the embodiment of Figs. 1 and 3.
Patent GB-1444133-A (GB)
Title: Information playback system stylus
IPC: G11B9/00
Filed: 1973-09-05
Abstract: 1444133 Capacitive pick up stylus RCA CORPORATION 5 Sept 1973 [6 Sept 1972] 41695/73 Heading G5R A capacitive pick up stylus for a record 10 having signals recorded as topographic variations in a spiral groove 14 which is overlaid with a conducting layer 18 covered by a dielectric layer 20, comprises a sapphire support element 22 reducing in trapezoidal cross-section towards its curved, groove engaging tip and formed with a corrugated rear surface 30 on which a tantalum conductive layer 32 which forms the pick up is deposited. The stylus is said to be less subject to wear than the similar un-corrugated one described in Specification 1,392,202.
Patent GB-851002-A (GB)
Title: Improvements in and relating to copolymers
Inventor: LEONARD EDWARD CHARLES JR
IPC: C08F210/00
Filed: 1958-12-24
Abstract: Copolymers of ethylene and propylene having a crystalline content of less than 20% and containing between 35 and 80% combined propylene and less than 1% by weight of low molecular weight normally liquid polymeric oils soluble in boiling acetone are made by contacting a mixture of ethylene and propylene containing from 0,5 to 5 moles of propylene per mole of ethylene in the presence of a trialkyl aluminium compound and the purple form of titanium trichloride or vanadium trichloride, and a nonpolar solvent.  Solvents mentioned are heptane, octane, cyclohexane, benzene, toluene, and chlorobenzene. The exemplified trialkyl aluminium compound is triisobutyl aluminium. The polymerization reaction is terminated by the addition of ethanol. Specification 810,023 is referred to.
Patent GB-905885-A (GB)
Title: A method of producing compressed parts for use as permanent magnets
IPC: H01F1/06
Filed: 1958-12-29
Abstract: Ultra-fine non-flowing ferromagnetic powder is fed into a die from a filling shoe by magnetic attraction and thereafter pressed to form a permanent magnet.  A non-magnetic filling shoe without a bottom reciprocates over a non-ferromagnetic die which is surrounded by a coil and the ultra fine barium ferrite powder is drawn into the die by magnetic attraction and precompacted therein, the coil being energised when the shoe is over the die. The current is then switched off, the shoe which contains sufficient powder for several pressings withdrawn, and the powder pressed, the coil being re-energised during pressing.
Patent GB-1184248-A (GB)
Title: Process for the Production of High Molecular Weight Thermoplastic Silicic Acid Polyesters
Inventor: KOTZSCH HANS-JOACHIM
IPC: C08G77/60
Filed: 1967-09-14
Abstract: 1,184,248. Organosilicon polymers. DYNAMIT NOBEL A.G. 14 Sept., 1967 [14 Sept., 19661, No. 42050/67. Heading C3T. High M.W. thermoplastic silicic acid polyesters have repeating units in which R<SP>1</SP> is an aryl radical, R<SP>2</SP> is a hydrogen atom or an alkyl, alkenyl or aryl radical; R<SP>3</SP> is an arylene radical and R<SP>4</SP> represents the residue obtained by removing the OH groups from a diol, a dihydric phenol or a bisphenol or a heteroorganic compound containing OH groups; m is 1 to 100 and n is 1 to 200. They are prepared by reacting a silicic acid ester silylamine in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and m have the above meanings and R<SP>5</SP> is H, an alkyl, cycloalkyl or aryl radical with a compound R<SP>4</SP>(OH) 2  in substantially equimolar quantities at 20-140‹ C.
Patent GB-913209-A (GB)
Title: Improvements in or relating to optical apparatus
Inventor: COWAN DAVID MARK
IPC: G02B21/00
Filed: 1958-12-31
Abstract: 913,209. Kits of parts. COWAN, D. M., and COWAN, S. P. Dec. 7, 1959 [Dec. 31, 1958], No. 42141/58. Class 97 (1). A kit of parts for constructing a variety of optical instruments comprises a support member and a holder for an optical element slidably and frictionally mounted on a slideway of the support by resilient means (Figs. 1, 8, 9). Supports for the optical element may comprise a U - shaped holder 7 having grooves to receive a plate 20 (or 27), Figs. 8, 9, on which the element is removably mounted by spring clips either centrally (Fig. 8) or eccentrically, Fig. 9. The holder 7 is rotatably attached by a pin 8 to a base 10 which is slidably mounted on flanges of a slide 2. This slide may be mounted on three legs 4, 5. (Fig. 6). A telescope may be formed by an erecting prism system 12, 13 in a holder 7 as described above, and movable along a slide 2 in a tray 3. The tray is covered by a housing 19 and caps 27 are mounted on each end which have lens systems 25 movably attached thereto to form objective and eyepiece respectively. The prisms may be replaced by an erecting lens system. (Fig. 17). A periscope may be similarly formed with the objective eyepieces 25a, 25b in the housing instead of the end caps and having a deflecting mirror 33 slidably mounted on a slide 2 as well as an erecting prism system 14. Alternatively, the lens systems can be replaced by transparent or apertured plates and prism system 14 by a second deflecting mirror. (Figs. 15, 15a). The microscope shown comprises an upright slideway 2 to which a mirror 33, slide support 37, and carrier 43 (Fig. 15a) are movably attached. A U-shaped bracket 35 attached to a tubular lens holder 36 is fixed to carrier 43. Parts 35, 36 can therefore be moved up and down the slideway 2 to give a rough focusing adjustment. Fine adjustment is achieved by rotating a knob 50 on a spindle 46 which is in frictional engagement with the bracket 35 and mounted in slots in the member 45. (Fig. 24). An episcope may be formed by a housing 19 in which lamps 43 are arranged to illuminate an object supported either on an end cap 20a or in a position where the lamps can illuminate it through a window in the end cap. A mirror 33 adjustably mounted on a slideway 2 projects an image of the object through an objective system 25. The mirror may be omitted and the objective positioned at the end of the housing opposite cap 20a.
Patent GB-1319966-A (GB)
Title: Radiation sensitive material
IPC: G03C1/675
Filed: 1970-09-03
Abstract: 1319966 3 - [α - Ethoxy - α - (2 - thienyl)- methyl]indole AGFA-GEVAERT AG 3 Sept 1970 [11 Sept 1969] 42188/70 Heading C2C [Also in Division G2] An indole compound of formula is prepared by adding 2-methylindole and thiophene-2-aldehyde in alcoholic caustic soda.
Patent GB-1531744-A (GB)
Title: Optical scanning system
IPC: H04N5/257
Filed: 1975-10-15
Abstract: 1531744 Optical scanning systems XEROX CORP 15 Oct 1975 [21 Nov 1974 (2)] 42256/75 Heading G2J [Also in Division H4] A flying spot scanning system comprises a laser for providing a beam 3 of light, a lens for imaging said beam to a spot in a focal plane, a scanner 10 for directing said beam through a predetermined scan angle where said spot traverses a focal arc, and optical means between the scanner and said focal arc for redirecting the beam such that the effective scan angle is smaller than said predetermined angle. The optical means consist of mirrors a, b, c, d disposed symmetrically about a line CL which bisects said predetermined scan angle, said mirrors redirecting said beam to provide two contiguous focal circles. In a modification each mirror has two facets to provide four focal circles. Instead of using mirrors, the optical means may consist of prisms (14), (16), Fig. 6 (not shown), the beam 3 being redirected from the reflective surfaces of the prisms. The prisms may be joined at an edge e, whereby two focal circles are produced, or they may be separated, Fig. 7 (not shown), whereby the focal circles (1), (3) corresponding to the prisms are separated by a third focal circle (2) through which the spot is scanned by scanner 10. Glass plates (22), (24) are located, one between a respective prism and the focal plane, such that the focal object planes corresponding to the prisms and scanner 10 alone are coincident. A filter (28) of neutral density is disposed between scanner 10 and focal circle (2) to match the intensity of the beam 3 which is directed by scanner 10 in relation to focal circle (2) with the beams directed through the prisms to focal circles (1), (3). If beam 3 consists of polarized light, filter (28) may be a polarizer. The system may be used in a "read" mode when an original picture or document is scanned to determine the reflected or transmitted intensity, or in a "write" mode wherein the beam is modulated and scanned across a photo-sensitive medium. The scanner may be an acousto-optical deflector, a scanning polygon, or a galvanometer. The light may be modulated by a Pockel's cell.  For an infrared illumination, a thin layer of gold is used to provide the mirrored surfaces.
Patent GB-1094028-A (GB)
Title: Improvements in or relating to a cine camera
IPC: G03B7/099
Filed: 1966-09-26
Abstract: 1,094,028. Cine cameras. K. VOCKENHUBERandR. HAUSER. Sept.26, 1966 [Sept.24, 1965; March 16, 1966], No.42777/66. Heading G2E. A cine camera with a photo-electric exposure control system has a reciprocating shutter 7 with an inclined reflecting face to deflect light from the lens 1 on to a photo-electric cell 21 while the shutter covers gate 2, therebeing a light dimmer, such as perforated diaphragm 14, movable in synchronism with the shutter to reduce the light falling on cell 11 to the average value during a shutter cycle. Galvanometer 13 therefore gives the same reading whether or not the camera is running. Shutter 7 is driven by a cam 8 on shaft 6 which also carries a crank operating the frame 9 bearing pull-down claw 4 and diaphragm 14. Frame 9 and shutter 7 are slidably mounted on shaft 10, claw 4 having an inclined face which slides over the film perforations during the up-stroke. Grey or polarizing filters may replace diaphragm 14. In another embodiment, the dimmer comprises a rim-driven gear-wheel with an arcuate slot covering 180‹ with a perforated diaphragm at one end, used with the inclined face of shutter 7. In another form the mirror is reciprocated in front of the gate on a slotted plate engaging a crank-pin on a driven disc, this crank-pin also engaging a curved slot in a bar pivoted to the plate at one end and having a perforated diaphragm at the other which enters the light beam incident on the mirror.
Patent GB-1151007-A (GB)
Title: Process for the manufacture of Azo Pigments
IPC: C09B41/00
Filed: 1967-09-21
Abstract: 1,151,007. Colouring PVC. CIBA Ltd. 21 Sept., 1967 [22 Sept., 1966; 11 Aug., 1967], No. 42959/67. Heading C3P. [Also in Division C4]. In Example 2, a mixture of 65 parts of polyvinyl chloride and 35 parts dioctyl phthalate with 0À2 parts of the pigment of formula are worked at 140‹ C. in a roller mill, a blue" red film is obtained.
Patent GB-1325565-A (GB)
Title: Process for obtaining films and blocks of cellulose acetate
IPC: C08L1/12
Filed: 1970-09-09
Abstract: 1325565 Cellulose acetate films G B DEL CAMPO 9 Sept 1970 [28 April 1970] 43129/70 Heading B5B A process for preparing films or blocks of cellulose in acetate particularly suitable for use in electrophoresis comprises the steps of dissolving cellulose biacetate in a first mixture comprising a major proportion of a watermiscible solvent (e.g. acetone) and a minor proportion of a water-miscible swelling agent (e.g. ethylene glycol monoethylether) for cellulose biacetate, adding to the solution, with stirring, a second mixture containing a major proportion of the swelling agent and a minor proportion of the solvent thereby obtaining a swollen mass of cellulose biacetate, adding to the swollen mass 3 to 10% by weight formamide, casting a film from the resultant mass, evaporating at least a portion of the solvent and immersing the cast film into water to replace the remainder of solvent and swelling agent by the water and obtain a film of cellulose biacetate aqueous gel. All the steps of the process are carried out at room temperature. In an example the ratios of acetone to ethylene glycol monoethyl ether are 3 : 2 for the first mixture and 1 : 5 for the second.
Patent GB-1354135-A (GB)
Title: Oxadiazoles and process for their manufacture
IPC: C07F9/653
Filed: 1971-09-16
Abstract: 1354135 1-Haloalkyl-1,3,4-oxadiazoles FARBWERKE HOECHST AG 16 Sept 1971 [26 Sept 1970 (2)] 43255/71 Heading C2C 2-Haloalkyl-1,3,4-oxadiazoles of the general formula wherein R 1  is a C 1-4  monohaloalkyl group and R 2  is a C 1-17  alkyl group, the straight or branched chain of which is optionally substituted by an oxygen atom, or a phenoxymethyl, benzyl, styryl, phenyl, halophenyl, C 1-4  alkylphenyl or C 1-4  alkoxyphenyl group, which are novel when R 2  is a C 2-17  alkoxyalkyl, phenoxymethyl, benzyl or styryl group, are prepared by reaction of compounds of the general formulae R 1 COOH and H 2 N-NH-COR 2  in the presence of an inorganic acid halide and an inert solvent at 60-150‹ C. Reference has been directed by the Comptroller to Specifications 1,026,361 and 1,161,802.
Patent GB-920108-A (GB)
Title: Improvements in or relating to furnace chambers
Inventor: EVANS RICHARD HENRY
IPC: F22B37/00
Filed: 1960-12-16
Abstract: 920,108. Scaffolding for workmen. BABCOCK & WILCOX Ltd. Dec. 15, 1961 [Dec. 16, 1960], No. 43310/60. Class 20 (2). [Also in Group XII] An inspection platform for the interior of a boiler furnace comprises sections 20A, 20B which are lowered into the furnace through doors 12A, 12B and 13 by winches 19, raised into position by winches 29, and supported by slings 65C, 65D from the roof of the furnace. The sections 20A, Fig. 4, extend along the front and back walls of the furnace and are connected by transverse sections 20B. The platform is moved vertically for inspection of the furnace by the slings 65C controlled by electric winches. The sections 20B are hinged so that one section 54, Fig. 2, can be lowered vertically and the position of the sections 20A altered so that the platform can be raised past the nose baffle 8. The platform sections are formed of aluminium, a floor plate being bolted to inturned lower flanges 31 of the side plates, Fig. 5. Outturned upper flanges 36 carry hinged forked lugs 37 which engage the uprights 35 of the hand rail 34. The uprights are pivoted to the side plates so that the balustrade can be collapsed when the lugs 37 are disengaged. The end parts of the side plates of the sections 20A, 20B and their upper flanges are cut away, Fig. 8, so that the floor plates 30A of the sections 20A may be bolted to the lower flanges 31B and floor plate 30B of the cross-section 20B. A fish-plate 9 joins the sections 20A and an angle plate 10 closes the gap in the side plates and hand rail. At the corners, the outer side plate of cross-section 20B is extended to and curved to close the corner, Fig. 7 (not shown). The floor plates 30B of the sections 20B are hinged at 55, fish plates 56 joining the parts of the side plates. Gaps in the side plates to allow assembly of the shortened cross-platforms 20B to the side platforms 20A are closed by plates 57. The floor of one section 54 of the cross-platform 20B overlaps the floor of the other part 53, so that when the section 54 is dropped to a vertical position the floor plate closes the gap in the side plates of the platforms 20A. The sections 20B may be provided with rollers running on tracks secured to the long side sections 20A so that they may be more easily moved to position, and the sections 20B may be made telescopic, rack-and-pinion gearing being provided to retract the end sections, instead of the sections being hinged. Specification 877,117 is referred to.