baber/WOPTO huggingface dataset:
Patent GB-1372317-A (GB)
Title: Olefin polymerisation catalyst
IPC: C08F10/00
Filed: 1971-12-08
Abstract: 1372317 Olefin polymerisation catalysts WACKER-CHEMIE GmbH 8 Dec 1971 [9 Dec 1970] 57071/71 Heading B1E [Also in Division C3] Olefin polymerisation catalyst is prepared by a process which comprises reacting, at a temperature advantageously of from 20 to 70C, (i) a silicon compound containing silicon-hydrogen bonds, (ii) a halide and/or alkoxide of a metal of Groups IVA, VA and VIA and, optionally, (iii) a halide and/or alkoxide and/or alkyl of aluminium in the absence of moisture and air (i.e. in the presence of an inert atmosphere, for example hydrogen or nitrogen) and in the presence of (iv) from 1 to 500 grams of hexamethylbenzene and/or hexaethylbenzene per 1000 grams of components (i), (ii) and (iii) and, optionally, (v) an inert auxiliary liquid, for example a saturated aliphatic or cycloaliphatic hydrocarbon. The silicon compound (i) may be a silane, a monomeric hydrogenosiloxane or a polymeric hydrogenosiloxane, for example a methylhydrogenopolysiloxane or a polymeric hydrogenosiloxane for example a methylhydrogenopolysiloxane or a phenylhydrogenopolysiloxane; the metal compound (ii) may be titanium tetrachloride, vanadium oxychloride or a vanadium chloride; the auxiliary liquid (v) may be n-pentane, nhexane, nheptane, iso-octane or cyclohexane. As exemplified, catalyst is prepared from a linear methylhydrogenopolysiloxane end - blocked with trimethylsiloxy groups and TiCl 4  in the presence of hexaethylbenzene and isooctane (Example 1) or from such polysiloxane, TiCl 4  and anhydrous aluminium chloride in the presence of either hexaethylbenzene (Example 2) or hexamethylbenzene (Example3) and nheptane.
Patent GB-1156380-A (GB)
Title: Memory System
IPC: G11C11/06
Filed: 1967-12-15
Abstract: 1,156,380. Data storage. INTERNATIONAL BUSINESS MACHINES CORP. 15 Dec., 1967 [28 Dec., 1966], No. 57205/67. Addition to 1,154,458. Heading G4C. In a memory system, a plurality of storage modules each store a bit of a word and each module has a plurality of drive lines and a plurality of sense lines to permit the concurrent accessing of data words, no two adjacent bits along any one of the drive lines being associated with the same sense line. An n-bit word is stored in n memory modules, one bit in each module (3D core matrix) in corresponding positions. Up to four words can be transferred simultaneously (read or write) between the modules and a data register, the words being adjacent in either the X, Y or Z direction. A system address specifies the X, Y and Z components of the bit address of the first word (in binary code), the direction referred to (direction of access). and the number of words. In the case of an X (or Y) direction access, up to four Y (or X) drivers (depending on the number of words required) and one X (or Y) driver are gated to the appropriate read-write lines in a plane of each module for coincident selection, under control of the X and Y components of the address of the first word, the plane involved in each module being selected by the Z component of the address of the first word. In the case of a Z direction access, one X and one Y driver are gated to the appropriate read-write lines (selected by the X and Y components) of up to four adjacent planes in each module (according to the Z component and the number of words). (As a modification, coincident selection may occur along those two of X, Y, Z unequal to the access direction). Each module uses four sense wires (each bit position being threaded by only one), the four wires threading each plane diagonally (a plurality of times) in turn, the threadings in each plane being sideways displaced by one position relative to those of the preceding plane. The four (or etc.) bits from each module on read-out are rotated to a standard position before entering the data register by gates controlled by the two low order bits of the sum of the X, Y and Z components of the first word address. Each core plane in the modules could be replaced by a plane of solid-state flip-flops using integrated or monolithic circuit technology, or each module could be a 1D or 2D core array or a plurality of 3D arrays, or thin-film storage could be used. Use in multiprocessor computers is mentioned.
Patent GB-1210934-A (GB)
Title: An electro-magnet suitable for use on a.c. supplies
Inventor: HAUG HEINZ
IPC: H01F7/16
Filed: 1967-12-18
Abstract: 1,210,934. Electromagnetic actuators. W. BINDER, [trading as BINDER MAGNETE KG]. 18 Dec., 1967 [16 Dec., 1966], No. 57388/67. Heading H1P. In an electromagnetic actuator in which the pole core and the armature are located inside and the coil and yoke are arranged outside a pressure-tight tube, the pole core and/or the armature consist of sheet metal laminations. As shown, Fig. 1, an hydraulic valve actuator comprises a pressure-tight tube 3 surrounded by a coil 2 and a laminated yoke 1 embedded in a casing 7 of casting resin. The lower end of the casing terminates at a base-plate 6 which may be attached to the valve housing. The lower end of the tube 3 contains a laminated pole core 5 assembled round a bush 12 through which slides the push-rod 11 of the armature 4. The bush may be of brass and may be brazed to the laminations. The armature 4 comprises laminations having an involute form in horizontal cross-section assembled round the end of the push-rod 11 and held together by rings (10) soldered into the end faces. If the rings (10 are of copper they may act as shading coils. Bores (9) are provided between the ends of the armature for the passage of hydraulic fluid, Fig. 3 (not shown). The yoke 1 may be constructed as two half shells, the laminations again being of involute form, Figs. 5 and 6 (not shown). Reference has been directed by the Comptroller to Specification 1,121,747.
Patent GB-1213808-A (GB)
Title: Photographic processing compositions
Inventor: BADEN HARRY CHRISTIAN
IPC: G03C5/26
Filed: 1967-12-21
Abstract: 1,213,808. Photographic processing.  EASTMAN KODAK CO. Dec.21, 1967 [Dec.28, 1966], No. 58062/67. Heading G2C. Solid compacted material for preparing aqueous silver halide processing solutions are composed of (i) particles of a silver halide nucleating compound having at least one B atom per molecule, and (ii) a water-soluble carrier which is inert to (i). Preferably the material is in tablet form and contains (i) an ionic boron hydride, a BH 3  complex with an organic N, P, As or Sb compound or a borazine, and (ii) an alkali metal phosphate, carbonate, sulphite, halide or tartrate, a sugar or a polyoxyethylene. The tablets and/ or solutions prepared therefrom may also contain other processing agents. The processing solutions obviate the need for a reversal exposure in colour processing.
Patent GB-1370903-A (GB)
Title: Tuned vibratory reed switching device
IPC: H01H51/34
Filed: 1971-12-17
Abstract: 1370903 Electromagnetic tuned interrupters WESTERN ELECTRIC CO Inc 17 Dec 1971 [23 Dec 1970 24 Dec 1970] 58602/71 Heading H1N A tuned electromagnetic interrupter has tines 24 rigidly secured on a support board 23 which is also attached to a core 51 adjacent the free ends of the tines with a flux carrier 53 coupling the core 51 and tines 24. Each tine 24 has a movable contact hook 28 attached to its free end and its fixed end is secured to a magnetic block 26 and the two blocks 26 are separated by an insulator sheet. The board 23 is made of ceramic material and has nickel plated circuit paths (35 to 39) thereon to which the tines 24 and fixed contact brackets 22 are connected. The fixed contacts are rhodium wires 32 fastened at one end to a base 30 of the respective bracket 22 which is adjustably mounted on the board 23. Each bracket 22 has an upstanding portion 34 and the wire 32 can be pretensioned to engage either side of the portion 34. Fig. 4A shows an arrangement with the two contacts sets allowing parallel connection thereof so that the upper contacts 28, 32 close as the tines 24 swing toward each other and the lower contacts 28, 32 close as the tines 24 swing apart. If the contacts are set as shown in Fig. 9A they can be connected in series to complete their circuit for a short time in the middle of each swing of the tines 24. Spring wires 74, 75 may connect the printed circuit areas to pins 73 projecting from the two part housing 71, 80.
Patent GB-1368180-A (GB)
Title: Internal combustion engine
IPC: F02B23/06
Filed: 1972-12-21
Abstract: 1368180 Combustion chambers BARKASWERKE VEB 21 Dec 1972 59032/72 Addition to 1187787 Heading FIB In an improvement of the direct injection I. C. engine in Specification 1187787 a fuel injector 8, Fig. 1 directs a jet along a line which, when viewed in the plane passing through the axis of the fuel injector and parallel to the chamber axis, is spaced from and parallel to a line which is asymptotic to the envelope surface at the outer flared surface on one side of the combustion chamber and which is asymptotic to the envelope surface at the inner flared surface on the opposing side of the combustion chamber and also directs a jet towards the inner wall of the chamber either in a direction substantially parallel to the chamber axis or slightly inclined to the axis to have a component of velocity in the direction of swirling motion of the air adjacent the further jet.
Patent GB-1316229-A (GB)
Title: Semiconductor devices
IPC: H01L/
Filed: 1971-12-22
Abstract: 1316229 Semi-conductor devices FAIRCHILD CAMERA & INSTRUMENT CORP 22 Dec 1971 [21 April 1971] 59729/71 Heading H1K A charge coupled device comprises a semiconductor substrate 11, e.g. of silicon, an insulating layer 12, e.g. of silicon dioxide, and a plurality of electrodes 13a to 13g interconnected by resistive material 14a to 14f. The material may be thin film material. In an alternative embodiment, the electrodes and resistive material may be formed from a common layer of polycrystalline silicon deposited on the insulating layer. The electrodes may be formed by doping portions of the silicon layer, the resistive parts remaining intrinsic. This embodiment may be protected by a silicon nitride film. In a further embodiment a layer of resistive material may be formed over the insulating layer, metal electrodes being formed on the resistive layer. Use of resistive material is said to enable interelectrode spacings to be increased, e.g. up to 10Á, over those of the prior art, easing manufacturing problems.
Patent GB-1377280-A (GB)
Title: Drill head unit
IPC: E21B10/62
Filed: 1972-12-27
Abstract: 1377280 Drill head unit M C FLORES and A STAGGS 27 Dec 1972 [27 Dec 1971] 59734/72 Heading B3C A drill head unit comprises a main member 11 supporting a pair of holders 18, each of which supports a hexagonal carbide throwaway insert. The member 11 is integral with a shaft 12 which has a threaded transverse hole 13 and a hole that runs longitudinally thereof to allow cooling fluid to the cutting inserts. Each holder has a shaft 17 that fits in a hole 16 that is inclined to the longitudinal axis of the unit. The holder is held in place by a screw 20 engaging in notch 19. Each insert is held in position by a screw 22 and the angular sides of notch 25.
Patent GB-1370710-A (GB)
Title: Digital transmission systems
IPC: H03M3/04
Filed: 1972-12-28
Abstract: 1370710 A/D conversion WESTERN ELECTRIC CO Inc 28 Dec 1972 [30 Dec 1971] 59754/72 Heading G4H  An A/D converter comprises means for obtaining a present sample and (N-1) future samples of an input analogue signal, quantizing means for generating a digital output code from the samples, means for deriving an analogue signal from the code, means for generating a quantizing error signal from the difference between the derived analogue signal and the present input signal sample, means for storing M successive, immediately previous, quantizing error signals and means for correcting the quantization of the signal samples in the quantizing means in response to the quantizing error signals so as to produce a reduced frequency-weighted quantizing error in the digital output code. In Fig. 1, a sampler 100 and a delay 105 give a present sample S 0  and a future sample S 1  which are passed through respective combiners 115, 110 (see below) to a quantizer 120 which produces two bits in parallel to an output shift register 125 from which a local decoder 130 produces an analogue signal which is subtracted in the combiners 110, 115 to give #-modulation operation. The decoder 130 output is also subtracted from the present sample S 0  at 135 to give the quantizing error signal q 0 . Weighted sum and difference combinations of progressively delayed (at 141, 142, 143) versions of this are obtained in a bias computer 140 (see Specification for details of 155) to provide additive bias inputs # 0 , # 1  to the combiners 115, 110. The biasing and the quantizing are arranged to reduce quantizing error in a lowfrequency range (at the expense of increased error at higher frequencies but this is eliminated by system filters anyway). The quantizer 120 may use a C.R.T., the outputs of the two combiners 110, 115 being applied to the horizontal and vertical plates respectively, the screen being covered with four groups of photo-diodes corresponding to the four possible 2-bit outputs. In Fig. 4, the present and future samples S 0 , S 1  are supplied from an analogue shift register 400 to a first quantizer 410 to produce a first output bit, then register 400 is shifted by one position and the new present sample (previous future sample) is used by a second quantizer 420 to produce a second output bit. Then there is another shift and the third bit is produced from the first quantizer 410, and so on. A local decoder 425 produces an analogue signal from the digital output and supplies it to the two quantizers 410, 420. This analogue signal is also subtracted from the present sample S 0  at 430 to produce bias signals  1 # 0 ,  0 # 0 ,  0 # 1  for the quantizers 410, 420 from the circuitry shown, using an analogue shift register 435, weighting (in blocks b), adding (at 440, 441, 442, 445) and delays 443, 444. 444 can be omitted to a good approximation. Fig. 5 (not shown) extends the principle of Fig. 4 to more than two quantizers producing a bit each in turn. If there are N quantizers, the first responds to N input samples, the next to N-1, and so on.
Patent GB-1409643-A (GB)
Title: Method and apparatus for packaging flexible duct
IPC: B65B31/04
Filed: 1973-12-31
Abstract: 1409643 Packaging JOHNS-MANVILLE CORP 31 Dec 1973 [2 Jan 1973] 60253/73 Heading B8C A method of packaging an axially collapsible duct 36 comprises inserting the duct into a tube 22, placing an open end of a bag over the tube, compressing and ejecting the duct into the bag, and closing and fastening the bag while the duct is compressed. The duct is compressed and ejected by a ram 40 driven by an hydraulic or pneumatic drive through a shaft 42. The shaft is hollow and connected to a vacuum pump to evacuate the bag being filled. The ram pushes the duct beyond the end of the tube and is there withdrawn so that the evacuated bag necks between the duct and tube. The necked portion is twisted and then clipped or otherwise fastened. In a modification the ram may have through passageways normally closed at the 'rear by a flexible sheet but which permit air to pass from the duct during initial movement of the ram.
Patent GB-1220885-A (GB)
Title: Wet deck for evaporative cooler
IPC: F28F25/08
Filed: 1968-08-08
Abstract: 1,220,885. Evaporative heat exchangers. BALTIMORE AIRCOIL CO. Inc. 8 Aug., 1968 [16 Feb., 1968], No. 62125/69. Divided out of 1,220,884. Heading F4K. A wet deck or wet deck fill unit providing a water-air interface surface in an evaporative cooler consists of means holding together in spaced relation a plurality of fill elements each comprising a strip 18, Fig. 3, having flat margins 88, 89 interconnected by a curved portion 90. As shown, integral taps 91, 92 maintain the spacing of adjacent strips 18 and the plurality of strips is held as a unit in a rectangular frame of channel members 83-86 bolted together. The end channels 83, 84 have their flanges inwardly facing to support the ends of the strip assembly which is held in position by retaining strips 93, 96, 97 and 98. The supporting frame is relatively deep so that when a plurality of frames are stacked to form a complete fill, a plenum space is formed above each layer of the strips 18. Specification 1,220,884 is referred to.
Patent GB-714161-A (GB)
Abstract: 714,161. Ticket-issuing machines; .cheeking receipts. LICENTIA PATENT-VERWALTUNGSGES. April 11, 1951 [Oct. 1, 1948], No. 8473/51. Classes 106 (1) and 106 (3) Apparatus for printing vouchers or tickets comprises printing, means including a printing roller, interchangeable record boxes containing record strips, and with a locking device for the printing roller which locking device is effective on exhaustion or breakage of the record strip, in which the record box casing consisting of two parts that may be locked together, is provided with a lock which is operated by hand and is coupled to a record strip control member and to the printing roller locking device in such a manner that the locking device maintains, the roller locked when the record box is not locked or the record strip is broken or exhausted, and unlocks the printing roller to enable the printing means to be operated when the record box is locked. Attached to the printing roller. 11, Figs. 1 and 2, is a cam 29 slotted at 31 and 47. A member 26 pivoted at 25 is normally urged by a spring 30 so that its finger 27 enters the slot 31 and so locks the printing means The insertable box 12 consists of a housing 37 and a lid 38 which may be locked by a key and lock, not shown. When the box is inserted in its unlocked condition a cam tappet 45 controlled by the box lock is positioned to abut a lever 35, Fig. 1, which abuts a projection 36 carried by the member 26 which is thereby positioned so that its finger 28 enters the slot 47 of the cam 29 and so locks the printing means. When the box is locked, however, the tappet 45 is moved to free the lever 36 to the action of a spring 46 whereupon it is moved to abut a finger 35 and the member 26 is positioned (see Fig. 2), to free the cam 29 and the printing means. A finger 32 is constantly urged. against the record strip 21 by a spring 33 If during the normal working of the machine, Fig. 2, the record strip breaks or runs out the finger 32 moves counterclockwise taking with it the finger 35. The member 26 is there ore moved further counterclockwise by its spring 30, arid its finger 27 enters the slot. 31 to lock the printing means.
Patent GB-2003679-A (GB)
Title: Circuit for electrical propeller drive for an under-water vehicle
IPC: H02P7/298
Filed: 1978-08-30
Abstract: In a control system for DC motors M1, M2 driving an under-water vehicle and controlled by semi-conductor regulators St11, St21 and batteries B1, B2 switched between series and parallel, the noise occurring during such switching is minimized by providing semi-conductor regulators St12, St22 for field windings F1, F2 of the motors and adjusting the field current, and hence the motor back EMF, so that the armature current is reduced to zero prior to battery switching. Switches HS1, HS2 are closed with batteries B1, B2 in parallel and regulators St11, St21 increase the armature voltage to that of the batteries, whereupon regulator by-pass switches S1, S2 are closed. The field current is reduced to double the motor speed and then rapidly increased to double the back EMF, whereupon switch S12 is closed at zero current to connect the batteries in series. Finally the field current is regulated to adjust the armature current to a desired value. Similar control is used for a system having four batteries. Figs. 2, 3 & 4 (not shown). Switches S1, S2 further reduce the noise emanating from the vehicle by reducing the number of continuously conducting thyristors and hence the system cooling requirement. <IMAGE>
Patent GB-2003595-A (GB)
Title: Atmospheric burners
IPC: F23C5/28
Filed: 1978-09-11
Abstract: A pre-mix burner arrangement comprises two burner boxes 1 each having a flame strip 3 with a plurality of ports, the flame strips being mounted in spaced apart relationship and opposite to each other so that during use the flows of ignited combustible mixture therefrom are opposed to one another. <IMAGE>
Patent GB-2004632-A (GB)
Title: Breeching entry to chimney liner
IPC: E04F17/02
Filed: 1978-09-21
Abstract: A chimney having an outer column (1) and an inner brick lining (5) spaced therefrom, has an insulated metal member 7 joined to the inner lining and extending through the outer chimney column to form a breeching entry. The member 7 is supported by suspension means coacting with the outer chimney column. An expansion joint may be incorporated in the member 7. <IMAGE>
Patent GB-2008814-A (GB)
Title: Electronic timepiece
IPC: G04G13/00
Filed: 1978-10-31
Abstract: In an electronic alarm timepiece having an alarm accordance circuit for producing an alarm signal at a preset time in accordance with a time stored in a time memory circuit, an electromechanical acoustic transducer is provided having at least two mechanical resonant frequencies. One of the resonant frequencies is in the audible range and one of the resonant frequencies is in the ultrasonic range. The transducer is actuatable to produce an acoustic alarm in the audible range in response to the alarm signal and is selectively actuated to produce an acoustic output in the ultrasonic range for controlling devices external of the timepiece.
Patent GB-2036334-A (GB)
Title: Testing metal seams in articles
IPC: G01N33/00
Filed: 1978-12-01
Abstract: A method and apparatus for testing welds, such as the side seam weld 15 in a can body 14, by imposing a tensile load across the weld. In order to discern localised weakness in the weld 15, the can body is placed on a mandrel 2 which holds the seam over a channel 5 along which a ball 7 is moved by a chain and crank handle or by a motor to progressively impose a predetermined strain on the seam 15. The degree of strain on the weld and regions adjacent is observed and may be hydraulically or electrically recorded in terms of the strain or stress imposed. In a modification, Figs. 6-8 (not shown), the ball 7 is replaced by a hydraulically pressed changeable wheel the force on which may be controlled by a calibrated spring attached to a pen recorder. <IMAGE>
Patent GB-2017585-A (GB)
Title: >An Index Tab for Files, Card Index Cards, and the Like
IPC: B42F21/06
Filed: 1979-02-27
Abstract: An index tab has a head (2) and a foot (1) which includes three spaced webs (3, 4, 5) defining file-edge- receiving cavities (8, 9) therebetween, the cavities (8, 9) being of different transverse dimensions to correspond respectively with the thickness of a supported edge (11, 12) and a non- supported edge (13) of a file, the webs (3, 4, 5) being mutually inclined such that the remote edges (24, 14, 19) (or the relevant one thereof) bear resiliently on the surface of a file (10) to which the tab is applied at a position spaced from the relevant edge of such file. <IMAGE>
Patent GB-2017350-A (GB)
Title: Distributor injection pump for a self-igniting internal combustion engine
IPC: F02M41/12
Filed: 1979-03-16
Abstract: The pump (1) comprises an injection timer (2) operable against spring bias by a rotational-speed proportional pressure delivered by the fuel feed pump, a regulator (3) and a pressure medium line (23) connected in dependence on engine speed and load, by the regulator 3 to a chamber (20) of the pump developing the speed proportional pressure. According to the invention, the line (23) is connected to a pressure admission chamber (22) of the timer so as to build up a pressure in opposition to the speed-proportional pressure, and the chamber (22) is connected by way of a throttle (28) to the suction side of the feed pump. By this means advancement of ignition is made speed and load dependent but without affecting pressure developed in chamber (20) of the pump. <IMAGE>