baber/WOPTO huggingface dataset:
Patent GB-1105225-A (GB)
Title: Improvements in or relating to record changer spindles
IPC: G11B17/16
Filed: 1966-03-30
Abstract: 1,105,225. Record changer spindle. V-M CORPORATION. 30 March, 1966 [4 May, 1965], No. 14130/66. Heading G5R. A record changer spindle incorporates primary record support fingers 24, which are withdrawn when a record is to be changed to release the lowermost record from the stack R, while the remaining records are supported by an arrangement including a cap 30 mounted over the upper end of a spindle 66 and vertically slidable. The cap has radially expanding fingers 34. When the primary support fingers are withdrawn by the downward movement of the carriage 40 and shaft 94, a compression spring 92 is released and the cap moves downward, since the spring 92 bears on the head 70 of the spindle 66. The cap fingers are forced outwards by the shoulders 62 so as to support the record stack. When the shaft 94 returns, the spindle 66 moves upwards but the cap remains stationary, as permitted by the spring 78, to maintain the support. The records are then lifted by the supports 24. This releases the cap which then moves upward by the action of the spring 78. The system is thus returned to its initial position.
Patent GB-239907-A (GB)
Title: Improvements in or relating to flasks for dental purposes
IPC: A61C13/16
Filed: 1924-06-11
Abstract: 239,907. Gutteridge, S. A., and Amalgamated Dental Co., Ltd., (formerly Ash, Sons, & Co., Ltd., C.). June 11, 1924. Patent abandoned on opposition. Dental flasks.-Consists in providing two-part dental naske with inlet and outlet openings, furnished with closures, whereby each flask may be charged under pressure; also in a dental flask having in one face inlet and outlet openings controlled by one or more closure members. As shown, a two-part flask 10, 11 furnished with a sliding base 13 is provided in the rear wall with a charging inlet 16 and a pair of outlets 17 disposed one on each side thereof. A slide 18 furnished with apertures 20, 21 to register with the openings 16, 17 is, after charging, moved laterally by a tool 22, Fig. 4, to close the openings. The tool 22 is furnished with a pair of pins, one 23 pivoting in a slot 25 and the other 24 engaging the end of the slide. The total outlet opening is proportioned to the inlet opening to impose the requisite pressure. The slide 18 may be replaced by more than one slide, and, as applied to a two-part flask, the inlet and cutlet openings may be disposed on different faces. Sprues of wax string are employed in waxing up the mould. Specifications 165,879 and 199,746 are referred to.
Patent GB-1533436-A (GB)
Title: Derailleur for a bicycle
IPC: B62M9/16
Filed: 1976-04-08
Abstract: 1533436 Chain-shift change speed gear SHIMANO INDUSTRIAL CO Ltd 8 April 1976 [9 April 1975] 14286/76 Heading F2D Ratio location, for the parallel-link-mounted tension-and-guide sprocket carrier 9, 11, of a cycle chain-shift gear, comprises a plate 12 having a slot 20 with selectively positioned cam surfaces 20a ... 20e, corresponding to five ratio settings, engaged by a pin 15. As shown the cam plate 12 pivots at 13 on one, 6, of the parallel support links 5, 6 of the sprocket carrier 9, 11, and has a screw anchor 14 for the end of the usual actuating cable, the pin 15 being secured to an extension of the bracket 1b which pivotally supports the parallel links 5, 6. A cable-return spring 16 surrounds the cam plate pivot 13. The cam surfaces 20a ... 20e, Fig. 4, engaged by the pin 15 are circular arcs struck about the pivot centre 13 with ascending radii l1 ... l5, corresponding to the ratio positions of the sprocket carrier 9, 11, and the control is not critical in that the pin 15 may lie at any position along the length of a particular cam surface 20a ... 20e without changing the selected setting of the sprocket carrier. In Figs. 5 and 6, not shown, the cam follower pin 15 is carried on the link 5 and the cam plate 12 pivots on an extension of either the sprocket carrier 9 or main support bracket 1b.
Patent GB-1147192-A (GB)
Title: Echo-sounding apparatus
Inventor: COOKE COLIN HENRY
IPC: G01S7/60
Filed: 1966-03-31
Abstract: 1,147,192. Echo-sounding; automatic gain control. SMITHS INDUSTRIES Ltd. 15 April, 1966 [23 April, 1965], No. 14294/66. Divided out of 1,147,191. Headings H3Q and H4D. Echo-sounding apparatus including an automatic gain control for an echo - signal amplifier comprises means for respectively decreasing or increasing the amplifier gain according to whether the amplitudes of selected echo signals applied to a threshold circuit exceed the threshold value or not. As applied to an amplifier 15, for equalizing the amplitudes of sea-bed echo pulses applied to the sea-bed echo selection circuit 16 of an echo-sounder (Fig. 1, not shown) of the type disclosed in the parent Specification (see Division H4) and thereby ensuring reliable operation of circuit 16, those parts of amplified echo signals which exceed a threshold value set by gate 27 are converted to equal-area pulses by monostable circuit 29 and then integrated by capacitive integrator 30 to provide a control voltage which reduces the gain of amplifier 15 to a point at which sea-bed echo signals will no longer pass gate 27. Subsequent decay of the control voltage allows the gain to rise until the signals can again pass gate 27. Transmission breakthrough signals -and echo signals other than from the sea-bed are prevented from triggering monostable circuit 29 by a suppression gate 28 which is closed during the acoustic transmission and in the interval between a sea-bed echo and the next transmitted sounding pulse.
Patent GB-401740-A (GB)
Title: Improvements in or relating to electric discharge devices such as thermionic valves
IPC: H01J1/18
Filed: 1932-05-20
Abstract: 401,740. Thermionic valves. LASZLO, M. P. DE, 6, Stanhope Place, Hyde Park, London. May 20, 1932, No. 14349. [Class 39 (i).] A filamentary cathode is supported from a mica or other refractory insulating strip in an electrode framework by means of a metal strip 2, Fig. 4, bent to grip against the two faces and opposite edges of the mica strip 1 and having its ends brought together to form a lug 3 to which is secured, as by welding, a hook 4 for the filament. The strip 2 may be embossed or indented to engage the strip 1 and may be of nickel or iron. The hook 4 may bo of molybdenum, tungsten or tantalum bent to form a spring 5. The bends of an M -shaped filament 6, Fig. 1, are supported by hooks 4 and strips 2 from two mica strips 1, 1<1> with apertures receiving wire supports 10. Nickel clips 7, 71 have tabs 8 welded to the wires 10. The lugs 3 on the upper strips 2 may be arranged at the same edge or at opposite edges of the strip 1, the latter arrangement avoiding bending of the strip 1. An aperture in the strip 1 between the strips 2 facilitates final adjustment of the filament by means of a tool passed through the aperture. A single metal strip may carry the two lugs 3 and hooks 4 for the upper end of the filament. For supporting a single hairpin filament, the hook is carried by a wide metal strip with apertures for the admission of a tool.
Patent GB-161089-A (GB)
Title: Improvements in warehouse trucks
IPC: B62B1/18
Filed: 1920-05-26
Abstract: 161,089. Dietz, E. May 26, 1920. Frame construction.-A warehouse truck supported mainly on centrally-disposed wheels C and constructed with a frame of which the sides are each composed of two parallel members 11, 12, spaced apart and connected at their ends by interposed corner irons 15, has the corner irons formed with sockets to receive the corner posts B of the frame, end members 10 connected with the side members, and means, such as bolts 18. 21 for securing the corner irons, side members. and end members together. Corner brace irons 19 are fitted between the end members 10 and inner side members 12. The wheels C are mounted on short axles ending in bearings fixed beneath the side members 11, 12.
Patent GB-1337851-A (GB)
Title: Axle bearing guide systems for railway vehicles
IPC: B61F5/32
Filed: 1971-05-12
Abstract: 1337851 Rail vehicle suspensions RHEINSTAHL AG 12 May 1971 [13 June 1970] 14472/71 Heading B7L  In an axle bearing guide system for bogies or chassis of bogieless rail vehicles having a torsionally rigid frame 2 supported via springs 6 on brackets 5, 5<SP>1</SP> of axle bearings 3, a guide arm 7 is provided for each axle bearing to transmit longitudinal faces between the bearing and the frame, each arm being connected with non- resilient universal mobility to both the associated axle bearing bracket 5 or 5<SP>1</SP> and a bracket 8 on the frame, transverse guidance forces being substantially absorbed by the springs 6, the transverse play being limited by stops 11, 12 having rubber buffers fixed to the bearings and frame respectively. Shock absorbers 10 are interposed between the frame 2 and axle bearings 3.
Patent GB-180556-A (GB)
Title: An improved folding hinge for casement sashes
IPC: E05D3/12
Filed: 1921-05-24
Abstract: 180,556. Higgs, W. E. May 24, 1921. Double and multiple hinges; securing flaps in a given relative position.-Relates to double hinges for casement windows, of the kind which allow the hinged side of the window to be swung out to facilitate cleaning, and comprises a construction which leaves a space between this side of the window and the frame, through which an arm can be inserted when cleaning the outside of the window. A hinge-flap a fixed to the stationary frame has a backwardly-extending slotted lug f into which fits a lug g forming part of the middle flap b, which is hinged to the flap a. This hinge is adapted to be put out of action by a pin h being passed through holes in the lugs, and the window, fixed to a flap c, turns on a hinge at the other side of the middle flaps, Fig. 3. When the pin h is withdrawn the middle flap can be swung out from the frame, Fig. 2, so as to leave a space at the hinged side of the window giving access to the outside.
Patent GB-1221195-A (GB)
Title: Improvements relating to mordinating of anionic compounds in hydropholic colloid media
Inventor: TIMMERMAN DANIEL MAURICE
IPC: G03C7/388
Filed: 1968-03-26
Abstract: 1,221,195. Vinylpyridine derivative. GEVAERT-AGFA N.V. 3 March, 1969 [26 March, 1968], No. 14523/68. Heading C2C. [Also in Division G2] 1,2 - Dimethyl - 5 - vinylpyridinium methylsulphate is prepared by adding dimethyl sulphate neutralized with potassium carbonate to a solution of 2-methyl-5-vinylpyridine in acetone.
Patent GB-728298-A (GB)
Title: Improvements relating to moulding sponge rubber articles
Filed: 1952-06-10
Abstract: In order to form moulded sponge rubber articles with a porous surface, the moulding surfaces are formed with several shallow recesses.  The recesses may be formed in a removable die; and may be formed in the die or in the mould by impressing a fabric on the surface of the mould or die during the moulding thereof.  Similar recesses may be made by machining or chemical action.
Patent GB-269002-A (GB)
Title: Improvement in fasteners for sweeping brush handles, squeegees, swabs, and like tools
IPC: B25G3/12
Filed: 1926-06-10
Abstract: 269,002. Matthewman, A., Copley, B. J., and Copley, H. E. June 10, 1926. Fixing by separate self-grip sockets with flange attachments.-A handle is frictionally secured in the head of a brush squeegee, swab, &c. by the engagement of a tapered ferrule F on the handle with a tapered ferrule G fixed in a hole in the head by nails in the flange C.
Patent GB-916329-A (GB)
Title: Improvements in or relating to rotary damping devices for electricity supply meters
Inventor: GRAY BERNARD HERBERT LESLIE
IPC: G01R11/60
Filed: 1958-05-07
Abstract: 916,329. Maximum demand indicators. SANGAMO WESTON Ltd. May 6, 1959 [May 7, 1958], No. 14634/58. Classes 106 (3) and 106 (4). [Also in Group XXXII] In a maximum demand electricity supply meter, the slave pointer 19, Fig. 2, is retained in position by a viscous damper comprising relatively rotatable plates 12, 20 with interposed highly viscous silicone grease 28 retained at the periphery by labyrinth passages 33. An annular projection 25 on one of the plates 12 maintains the required spacing. A forwardly projecting limb 18 of the indicator mechanism 15 engages and moves the pointer 19 through a projection (not shown). Specification 916,330 is referred to.
Patent GB-1178451-A (GB)
Title: Lateriomycin F and production thereof
Filed: 1967-03-31
Abstract: 1,178,451. The antibiotic lateriomycin F. TAKEDA YAKUHIN KOGYO K.K. 31 March, 1967 [2 April, 1966; 20 April, 1966], No. 14746/67. Heading C2A. The invention relates to an anti-bacterial and antitumour antibiotic, lateriomycin F, which is an orange red powder, soluble in methanol, ethanol, n-butanol, acetone, chloroform, dichloromethane &c. but insoluble in diethylether, water, petroleum ether, n-hexane and cyclohexane; positive to Molisch reaction and FeCl 3  reagent, shows purple-red colour in cone. H 2 SO 4 ; has the elementary analysis C = 62À68  1À25%, H = 6À34  0À50% and N = 23 1À89  0À60%; specific rotation [α] = 110 D  20 degrees (C = 0À1, 1% DMF in 99% C 2 H 5 OH); U-V absorption spectrum as shown in Fig. 1 with maxima at 234 mÁ (E<SP>1%</SP> 1cm  =     465  45), 252 mÁ (E<SP>1%</SP> 1cm = 415  20), 285 mÁ (E<SP>1%</SP> 1cm  = 190  20), 480 mÁ (E<SP>1%</SP> 1cm  = 125    25), 480 mÁ (E<SP>1%</SP> 1cm  = 125  25), 498 mÁ (E<SP>1%</SP> 1cm  = 125  25) and 533 mÁ shoulder;   I-R absorption spectrum as shown in Fig. 2; and which on hydrolysis with aqueous acid forms an aglycone having a melting point of 212-217 C., elementary analysis C = 63À31  0À3, H = 4À55  0À2, O = 32À13  0À3, U-V as shown in Fig. 3 (not shown), I-R as shown in Fig. 4 (not shown), and [a]<SP>20</SP> D  = 90 degrees (C =   0À05 in CHCl 3 ). The antibiotic lateriomycin F is produced by cultivating Streptomyces griseoruber No. 71070 (ATCC 17919) or a lateriomycin F-producing mutant or variant thereof in an aqueous nutrient medium preferably containing 0À03 to 0À1% of an inorganic ferrous or ferric salt and 0À001 to 0À05% of calcium chloride, zinc chloride and/or cupric sulphate. The antibiotic is extracted from the mycelium. In the examples, the broth is filtered, the separated mycelium is extracted with acetone, the extract concentrated, adjusted to pH 8À0, extracted with ethyl acetate and the antiboitic precipitated by the addition of petroleum ether. The precipitate is dissolved in acetone and reprecipitated with ether. The mycelium may also be extracted with methanol or a mixture of acetone and ethyl acetate. The clarified broth may be extracted with chloroform, ethyl acetate or methylethylketone. Lateriomycin F may be incorporated in topical preparations, e.g. ointments for the treatment of Staphylococcal infections. It may also be used as a general disinfectant.
Patent GB-1472921-A (GB)
Title: Digital computing systems
IPC: G06F12/08
Filed: 1974-04-03
Abstract: 1472921 Data processing systems SPERRY RAND CORP 3 April 1974 [4 April 1973] 14762/74 Heading G4A The system comprises two or more processors which share a common main memory. Each processor is provided with its own cache store which communicates with the main memory via a common content-addressable table which contains status words. Each status word relates to a block of data held in one or more of the cache stores and includes an indication of whether the block has been updated by a processor but not yet re-written in the main memory, so that a cache store wishing to access the main memory is prevented from obtaining from it an updated word until it has been updated in the memory. This arrangement permits a block in a cache store to be updated any number of times by the associated processor without the need to update the main memory until either another processor requires access to that block or the block is displaced from the cache store for other reasons. The various I/O units in the system may also have cache stores connected to the table. The main memory may be a plated wire memory and the cache stores integrated circuits. When an access request is generated by a processor (or I/O unit) the processor passes the address identifying the block to its cache store. There an associative search is performed and if the block is in the cache store it is passed to the processor. If it is not there the status words in the table must be searched to find out where the block is, but it is first neccessary to ensure that there is room in the cache store for the block when it is eventually obtained from the main memory. The store is therefore examined to determine whether any block therein has a validity bit equal to zero. If it has not a block, for example the oldest or the least used, is invalidated. If the invalidated block has been updated but not yet rewritten in the main memory, as indicated by a "change" bit C = 1 in the block address, the cache store addresses the table to access the relevant status word (Fig. 4, not shown). If the word indicates that no other processor cache store holds the invalidated block the status word is invalidated and the block rewritten in the main memory. On the other hand if the updated invalidated block is also in another cache store the status word is modified by cancelling its reference to the accessing processor cache (since it no longer holds the invalidated block) and setting the change bit C to zero (since the block has now been updated in the main memory). The table can now be searched to find where the required block is. If it is in another cache store and is unchanged (C = 0) the block can be read from the main memory to be processor cache store, the status word in the table being suitable updated. If it is changed (C=1) the block must be updated in the main memory before it can be read from the memory to the calling processor's cache store.
Patent GB-139709-A (GB)
Title: New or improved hot water supply apparatus
IPC: F24D17/00
Filed: 1919-06-11
Abstract: 139,709. Williams, T. June 11, 1919. Heating water.-A coil 1 immersed in the water of a boiling-pan 2 is connected at its lower end to the bottom of an open cistern 4, and at the top has a pipe 5 leading at 6 over the edge of the cistern 4 and having branches 7, 8 supplying water, heated in the coils, to baths, basins, &c.
Patent GB-1197742-A (GB)
Title: Improvements in Operating Controls for Tape Recorders.
Inventor: EVANS PHILIP HENRY
IPC: G11B15/50
Filed: 1967-03-31
Abstract: 1,197,742. Tape-recorder controls. B.S.R. Ltd. 20 June, 1968 [31 March, 1967], No. 14809/67. Heading G5R. A control member 13, 16, e.g. for controlling a clutch 12 associated with a tape-spool carrier 11, is engaged by one end 29 of a link member 25 pivoted at its other end 27 to a finger lever 18, 21 which is pivoted at 19, a spring 30 acting between the finger lever 18, 21 and the control member 13, 16; the finger lever 18, 21, link member 25, and spring 30 form a spring toggle linkage which approaches its dead centre position shortly before the finger lever reaches its lower limit of depression. Thus the effort required to depress the finger lever does not increase to a maximum towards full depression, at which projections 22, 23 engage a known form of locking mechanism 24.
Patent GB-582267-A (GB)
Title: Improvements in or relating to quick make and break electrical switches
IPC: H01H21/38
Filed: 1944-08-03
Abstract: 582,267. Snap-action switches. PRENTICE, H. B. Aug. 3, 1944, No. 14837. [Class 38 (v)] In a quick make-andbreak switch similar to that described in Specification 320,219, [Class 38 (v)], the dog of the contact carrier bar is connected to the toggle lever by a spring coil, which is housed so that, if it breaks, it connot cause a short-circuit. A spring 19 has its end 20, 21 bent outwards to fit in holes, one in a trunnion 17 of a dog 8 on the insulated carrier bar 4, and the other in a recess 18 in the toggle lever boss 16. The trunnion 17 may have an axial projection to receive the spring 19, or the latter may be housed in a recess in the dog 8, Figs. 3, 4 (not shown). In Fig. 5, (not shown) the spring 19 may be housed in an enlarged inner recess at the base of the recess 18. The spring may be outside both the dog 8 and the boss 16 but enclosed in a sleeve fixed to an enlarged portion of the dog 8, Fig. 6 (not shown). A slight longitudinal floating action for the bar 4 may be obtained by spacing apart the opposed faces of the dog 8 and the boss 16.
Patent GB-600840-A (GB)
Title: Improved process for the conversion of hydrocarbon oils
IPC: C10G11/18
Filed: 1945-06-12
Abstract: <PICT:0600840/III/1> In the conversion of hydrocarbon oils, the vaporized oil is passed up through a dense bed of finely-divided, fluidized catalyst in a reaction zone from which contaminated catalyst is withdrawn separately from the reaction products, and the conversion rate is maintained substantially constant by increasing or decreasing the depth of the catalyst bed, this being effected by varying the rate at which catalyst is withdrawn.  The catalyst is regenerated in the presence of oxygen-containing gases and recycled, whilst still hot, to the reaction zone and, in the preferred embodiment, provides the bulk of the heat for the conversion reaction.  The process applies particularly to cracking.  The oil, which may be total crude, topped crude or gas oil, is fed into reaction chamber 13 through line 11 and distributing cone 14.  Hot regenerated catalyst, comprising an activated clay or a synthetic gel of similar composition, is introduced either into the oil feed line through standpipe 16, or into chamber 13 through line 17; the amount added being controlled by a valve to maintain the reaction zone at a temperature between 850 DEG  F. and 1000 DEG  F.  The velocity of the oil vapours is controlled so as to maintain a dense, fluidized layer of catalyst in chamber 13.  Contaminated catalyst is continuously withdrawn through standpipe 23 after being stripped in the annular space between cone 14 and the wall of chamber 13, the withdrawal being controlled by valve 24.  The level of the catalyst in chamber 13 is controlled with respect to the activity of the catalyst, the level being increased as the process continues in order to compensate for the gradual reduction in activity.  The withdrawn catalyst is transported by air, introduced through line 42, into regenerator 43, where it is regenerated under dense phase conditions and then returned to the reaction chamber 13 through standpipe 16 or line 17. The products of the cracking are removed from chamber 13 through line 27 and passed into the bottom section of fractionator 28 where they are cooled by a portion of the bottoms which is returned to the fractionator through cooler 33 and line 34.
Patent GB-568408-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K1/18
Filed: 1942-10-23
Abstract: 568,408. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1942, No. 14919. Convention date, Oct. 25, 1941. [Class 35] In dynamo-electric machines in which the stator core 12 is resiliently suspended in an outer casing 20 as described in Specification 540,199, transmission of vibration to the foundation is minimized by supporting the casing at the longitudinally spaced ends only. For this purpose shims 31 are secured between the foundation and longitudinally extending feet 32 on the casing. The details of the machine are described in Specification 540,199.