baber/WOPTO huggingface dataset:
Patent GB-1220981-A (GB)
Title: Flagstone stacker
Inventor: MARSHALL KEITH FARRAR
IPC: B65G49/08
Filed: 1968-04-02
Abstract: 1,220,981. Apparatus for handling stone slabs. S. MARSHALL & SONS Ltd., and FIELDEN ENGS. Ltd. 9 May, 1969 [2 April, 1968], No. 15863/68. Heading B8C. Apparatus for stacking slabs of stone, concrete &c. such as flagstones, comprises a slab-supporting table 28 which is pivotally mounted on a carriage 10, adapted to travel along a track 16 extending between loading and unloading stations 12, 14 respectively, and to be movable between generally horizontal and vertical positions, stops 36 on the table being adapted to support the lower edge of a slab when the table is turned into its generally vertical position, and means being provided for raising and lowering the table with respect to the carriage. The carriage includes a U-shaped chassis 20 having a pair of rollers 24 at each side which co-operate with the track rails 16. The shaft 26 upon which the table 28 is pivoted is cranked adjacent its ends which extend through the sides 22 of the chassis, one shaft end having a handle 30, rotation of which through 180 degrees raises or lowers the table 28. The latter is movable from a horizontal to a vertical position by pneumatic cylinders 32 having a clamping action for movement in the opposite sense. The weight distribution of the table is such that when unloaded, or loaded, by a slab respectively it tends to swing to a horizontal or vertical position. With the carriage at the loading station a slab is placed with one edge against the stops 36, on the table which is in its raised horizontal position. As the carriage is moved towards the unloading station the weight of the slab, acting against the compression of the cylinders 32, rotates the table into a vertical position over a pallet 38, the slab being supported at its lower edge by the stops 36 which enter grooves 40 in the pallet 38 when the handle 30 is rotated to lower the table and deposit the slab. The carriage is then returned to the loading station, the pallet 38 being replaced when full.
Patent GB-633569-A (GB)
Title: Improvements in or relating to house heating apparatus
IPC: F24D5/00
Filed: 1947-06-17
Abstract: 633,569. Ventilating rooms. JET-HEET, Inc. June 17, 1947, No. 15917. Convention date, June 22, 1946. [Class 137] [Also in Groups XIII and XXVI] Hot air supplied under pressure from an air heater (see Group XIII) through a pipe 36 to injectors 48, 54, 60 draws air from rooms into casings 49, 59 or a conduit 64 mixes with it, and returns it to the rooms. In the casing 59, the injector 54 draws air from the space around the annular baffle and expels it through the space inside the baffle. Alternatively, a single injector draws air from a number of rooms, mixes with it, and returns it to the rooms.
Patent GB-198219-A (GB)
Title: Improvements in tire pump
IPC: F01B29/02
Filed: 1922-06-08
Abstract: 198,219. Whitted, J. B. June 8, 1922. Beat or lift valves ; spring gears operated in both directions - Comprises special arrangements of valves and valve-operating means in a multi-stage, air pump of the type having a piston in a power cylinder operated by a vacuum engine, and transmitting the movement to high and lowpressure cylinders for compressing the air, the piston operating the valves upon completion of its stroke in either directions. In the illustrated form, during the stroke of the hollow piston-rod 44 towards the right, air is drawn into the low pressure cylinder 6. On the return stroke, the air passes into the high-pressure cylinder 16. On the third stroke it is expelled. The vacuum engine for reciprocating the piston-rod comprises a cylinder 4 in which works a piston 54 secured to the rod. Ports 23, 25 in the cylinder heads communicate with a common conduit outside the cylinder which leads to a source of suction such as the intake of an internal-combustion engine. When the piston 54 reaches the left hand end of its stroke it compresses a spring 55 and moves a stirrup-shaped, pivoted, valve-carrying rod 31 to close the port 23 and open a port 32 to the atmosphere. This movement is communicated by a rod 40, arranged in a hood outside the cylinder and controlled by a spring 42, to a similar valve-carrying rod at the opposite end of the cylinder, whereby the atmospheric port 30 is closed and the suction port 25 opened. The suction then draws the piston to the right-hand end of the cylinder, the space on the left-hand side of the piston being filled with air admitted through the port 32. At the end of this stroke the valve mechanism is again reversed. The combined action of the springs 55 and the spring 42 give a quick valve movement at the ends of the stroke.
Patent GB-1446137-A (GB)
Title: Liquid crystal display panel
IPC: G11C11/404
Filed: 1974-04-10
Abstract: 1446137 Matrix displays HUGHES AIRCRAFT CO 10 April 1974 [7 May 1973] 15994/74 Heading G5C [Also in Division H4] A liquid crystal display panel comprises a substrate 42 containing an array of transistors in one surface including conductor arrays 44, 50 interconnecting, respectively, rows of gates and columns of sources and a drain pad 52 associated with each transistor and capacitatively coupled to the associated gate conductor. The capacitors provide storage for signals for a sufficient time to allow the liquid crystal to respond when the panel is rapidly scanned with TV signals. A positive pulse 29, and a negative analogue signal 30, Fig. 2, are applied initially to capacitor C 11 . When pulse 29 ends transistor T 11  is turned off but the voltage across capacitor C 11  is approximately that of C 1  and remains during the remainder of the frame scan period. Thus the capacitor is functionally in parallel with the liquid crystal element and effectively increases to response time and relaxation constant. The panel includes insulating and s.c. layers 46, 48 forming F.E.T.s and a protective layer of CaF 2  plus SiO 2  or quartz with apertures 58 over the pads. A conductive coating 41 on cover 40 may be continuous or comprise a line pattern registering with conductors 44. The pads may be reflective or transparent if the panel is used in the transmissive mode. The liquid crystal is MBBA with 2.3% cholestane and 1% zwitterion dopant.
Patent GB-793145-A (GB)
Title: Improvements relating to tower cranes
IPC: B66B9/16
Filed: 1956-05-23
Abstract: 793,145. Tower cranes. PINGON, P. J. May 23, 1956, No. 16031/56. Class 78 (4). The mast of a tower crane, which can travel on a track in front of a building being erected, is supported by members engaging a guide rail attached to the building, thereby enabling the mast to be extended. As shown in plan, a framework 2 attached to the mast 1 carries rollers 6, 8 engaging the guide rail 10, which has flanges to prevent the rollers leaving it.
Patent GB-739295-A (GB)
Title: Improvements in or relating to friction brakes
Inventor: DOUGLAS ERIC CHARLES
IPC: G11B17/02
Filed: 1953-06-11
Abstract: 739,295. Friction brakes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 11, 1954 [June 11, 1953], No. 16072/53. Class 103 (1). In a friction brake, particularly friction brakes suitable for the braking of gramophone turntables and the like, a braking element may be moved into contact with a moving surface to be braked and, after initial contact with the moving surface, the element follows the movement such that it becomes wedged against the moving surface to stop movement thereof. In the embodiment of the invention shown applied to a magnetic sound recording and reproducing apparatus or a gramophone in which it is desired to retard the turntable as quickly as possible, the friction pad 2, carried in a holder 3 of a flat shoe 4 movably mounted on a bracket 8 secured to a plate on the underneath side of the turntable, is forced into engagement with the concave inner surface of the rim of the turntable 1 by means of an electro-magnetically operated device 20 which when energized moves to engage the free end of the arm 5 of the flat shoe 4 and compress the spring 15 until the upstanding pin 13 mounted on bracket 8 disengages from the recess 7 formed in the triangular slot 6 in flat shoe 4 and the pad 2 makes contact wth the rim of the turntable. This frictional engagement causes the pad 2 initially to follow the movement of the turntable; as a result of which the shoe 4 moves angularly to the position illustrated in Fig. 3 in which the pin 13 engages an inclined cam surface 22 of the triangular cut-out portion 6 of the shoe 4 and in which the pad 2 becomes wedged against the rim 1, bringing the turntable to an abrupt stop. Inclined cam surfaces 22 and 23 enable this action to be brought about in either direction of the turntable and the invention may be applied either to a convex periphery of the brake drum or the inner concave surface of a depending rim on the drum.
Patent GB-815161-A (GB)
Title: Improvements in or relating to polymerization process
IPC: C08F110/02
Filed: 1956-05-24
Abstract: Ethylene is polymerized in an inert solvent and using as catalyst a mixture of a compound of Ti, Zr, Hf, V, Cb, Ta, Cr, Mo, W, Th or U, with a compound RR1AlX, wherein R and R1 are hydrogen, alkyl or aryl, and X is hydrogen, halogen, alkoxy, aryloxy, alkyl, secondary amino, mono-N-substituted amido, mercapto, thiophenyl, or a radical of a carboxylic or sulphonic acid; the process being characterized in that polymer slurry is withdrawn from the reaction zone, the polyethylene is separated in the absence of air, moisture and other catalyst poisons (e.g. under a blanket of nitrogen) and the liquid residue of catalyst and solvent is then reused in subsequent runs, whereby the total amounts of catalyst and solvent required are reduced.  The solvents specified are heptane, hexane, pentane, propane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, xylene, dichloro-benzene, chlorinated naphthalene, dibutylether, dioxane and tetrahydrofurane, and particular catalyst components used are titanium-tetrachloride, -oxychloride and -acetylacetonate, diethyl aluminium chloride, di-isobutyl aluminium-chloride and -hydride, and triethyl-, triisobutyl- and trioctyl-aluminium, the preferred mol. ratios and amounts of these being stated.  The polymers obtained may be purified with methanol and methanolic hydrochloric acid.  An advantage of the process is that the molecular weights of the materials produced in different runs become stabilized.  The examples illustrate the continuous addition of the reaction components and the continuous withdrawal of polyethylene slurry.
Patent GB-151715-A (GB)
Title: Improvements in heaters and baffles for the induction pipes of internal combustion engines
IPC: F02M1/00
Filed: 1919-06-26
Abstract: 151,715. Sunbeam Motor Car Co., Coatalen, L., and Irving, J. S. July 26, 1919. Vaporizers, external.-A bundle of tubes H soldered together at their ends and to a surrounding tube is mounted in the induction pipe to prevent flame passing to the carburettor. The tube F is perforated at F<2> and is mounted in a flanged jacket A, by means of which hot water is circulated among the tubes, entering and escaping through chambers B, C respectively and holes E in them.
Patent GB-161051-A (GB)
Abstract: 161,051. Impey, F. L. March 3, 1920. Covers.-A support for looseleaf books having hinged clamping-bars, posts for positioning the leaves, and thongs or the like for connecting the covers, is provided with means for retaining the clamping - bars against movement in relation to the covers and leaves. The support shown comprises tables a, b and an intermediate abutment d engaging the inner edges of the leaves and slotted for the passage of the thongs or the like. A trough-like socket f or equivalent holder for the clamping- bar g is provided on either or both sides of the abutment d, in fixed relation to the adjacent table, which may be fixed as shown for table b, or adjustable as shown for table a. Springs or other catches i for engagement over the clamping-bars in the holders f are correspondingly provided on one or both sides of the abutment d, in alignment with the usual projections k engaging in slots in the leaves to retain them in proper relation to each other.
Patent GB-755364-A (GB)
Title: Improvements in or relating to packaging machinery
Inventor: DOWNIE CHARLES
IPC: B65B67/12
Filed: 1954-06-01
Abstract: 755,364. Feeding sheets &c. ELDORADO ICE CREAM CO., Ltd. May 10, 1955 [June 1, 1954], No. 16194/54. Class 100 (1). [Also in Group XVII] A support for a stack 17 of paper bags comprises a spike 11 passing through a hole near the edge of each bag, so that the bags are suspended from the spike 11 and are urged towards the front of the stack. As shown, the front of the stack 17 is below a shoot 12 down which articles, e.g. iced lollies, are dropped from a platform 10. Each bag is opened, to receive an article, by an air blast supplied through a nozzle 13 and duct 14 Bags are fed by hand to the spike 11, slide down the spike by gravity and are detached therefrom either by the momentum of the article dropped into the bag, or by hand.
Patent GB-560335-A (GB)
Title: Improvements in or relating to loud speakers
IPC: H04R1/28
Filed: 1942-11-17
Abstract: 560,335. Loud-speaker horns. FOUNTAIN, Ltd., G. R., WHEELER, G. C., and HOULGATE, H. J. Nov. 17, 1942, No. 16237. [Class 13] [Also in Group XXXIX] A multi-unit loud-speaker comprises a row of units 4 in the open front 1 of a box, an inner horn 5 for each unit, the mouths 10 of which combine into a long outlet at the back 3 of the box, and two lateral outer horns 12 extending from the mouths 10 along the back of the box and round along the sides 2 of the box to the open front 1 of the box which constitutes the combined mouth of the loud-speaker. The coupling between each unit 4 and its horn 5 may be as described in Specification 519,625, [Group XXXIX]. The inner horns 5 are formed by curved wooden blocks 6 fastened between flat plates 9, 9. The outer horns are bounded by the back and side walls of the box and by sheets 13, 13 bent round spacing pieces 14. The sheets 13 are extensions of the inner ends of the plates 9, and their ends are fastened to extensions 15, 15 of the front ends of the plates 9. Reflecting blocks 16, 17, 17 are fitted along the centre of the back of the box and along the back corners of the box. The front of the box is fitted with hinged lids 19, 19. The line transformer or transformers may be mounted between the plates 9 and sheets 13 as indicated at 20; and the terminals may be mounted on the sheets 13 as indicated at 21.
Patent GB-254721-A (GB)
Title: Improvements in or relating to sheet-perforating apparatus
Filed: 1926-06-30
Abstract: 254,721. British Tabulating Machine Co., Ltd., (Assignees of Mills A. W.). July 1, 1925, [Convention date]. Selective punching-machines. - A punching- machine with cam-operated keyboard-selected punches has means for positively retracting the punches. Each of a bank of pivoted key levers 24 carries a spring-urged pawl 18, co-operating with a lug 17 on a member 14, connected to its punch 10 by a bell-crank 13, and carrying a tooth 19 engaging a constantly rotated toothed wheel 30. Depression of a key lowers the tooth 19 and the member 14 is moved to the right, Fig. 4, to effect punching. A lug 15 at the same time turns a bail 16 which through a projection 35 actuates a member 33 cammed by pins 40 to interpose a tooth 36 into the path of the wheel 30. The member 33 is then moved to the left by the wheel to turn the bail 16 and withdraw the punches. If a key is held depressed a cam 21 raises the end 20 of the member 14 and the parts are held inoperative until the key is released.
Patent GB-1122612-A (GB)
Title: Building toy
IPC: A63H33/04
Filed: 1965-08-02
Abstract: 1,122,612. Building kit. A. W. HOWE. 2 Aug., 1965, No. 16468/68. Divided out of 1,122,611. Heading A6S. A toy constructional kit has interlocking bricks at least some having at least one plug (2) and at least some having at least one socket (8) for interconnection, the plug being of such cross section (for example square) as to be non-rotabale in the socket and the walls of the socket being resilient and adapted to engage the sides of the plug for example by means of spring ribs (7). The bricks may have side plugs (4) be provided with grooves (3) and the kit may also include frames for space filling, wheels and cover plates.
Patent GB-670884-A (GB)
Title: Improvements in or relating to carbonisation of solid fuels
IPC: F02C3/28
Filed: 1949-06-21
Abstract: 670,884. Gas turbine plant. STEINSCHLAEGER, M. June 1, 1950 [June 21, 1949], No. 16506/49. Class 110(iii) [Also in Group XII] In carbonizing fuels such as lignite, cannel and bituminous coals, shale, wood, and particularly low grade water-containing fuels such as peat, the evolved gases separated from oils and tars are compressed and passed through a succession of interposed heat interchangers and turbines back into the drying and carbonizing zones, heat for the heat interchangers being obtained by burning gas from a producer which may be operated under pressure. Wet peat is fed to a pre-drier 47, part then being briquetted and the rest passing through drying, carbonizing and cooling sections 1, 2, 3, of the plant. Evolved and recycled gases leave the carbonization section by a number of outlets 5, 6, 7, and pass through cooling, carbonizing and cleaning plants 9 to a holder 12 and thence through a compressor 14, turbines 21; 27, with interposed heat-exchangers 16, 17, 23, to the retort, a portion passing direct through .line 29 from the second turbine to the drying section 1. Hot gases for the exchangers are obtained by burning gases from a producer 36 in a combustion chamber 35 supplied with air from a compressor 38 feeding the producer, the gases passing in the reverse direction through the exchangers and then through a turbine 45 to the pre-drier 47.
Patent GB-119329-A (GB)
Title: Improvements in and relating to Percussion Fuses for Explosive Projectiles.
Inventor: MIDGLEY ALBERT HENRY
IPC: F42C1/06
Filed: 1917-11-10
Abstract: 119,329. Midgley, A. H., and Vandervell, C. A. Nov. 10, 1917. Projectile fuses. - Relates to percussion fuses of the kind described in Specification 112,633, and consists mainly in making the strikerholder in the form of a stamping compris- .ing a cup-shaped portion b and a funnelshaped portion e, the part e forming a conical seat for a ball f interposed between the striker-holder and the end of the fuse-body. The funnel-shaped part of the stamping has a flange i, to guide the striker-holder within the fuse-body, and an additional guide is furnished by a central hole l in the detonator-holder j, receiving the lower end of the striker. The safetymember n passes through a transverse square hole in the piece j.
Patent GB-1262564-A (GB)
Title: Improvements in servo controlled indicator system
Inventor: CURWEN KENNETH ROBERT
IPC: G01K7/02
Filed: 1969-03-31
Abstract: 1,262,564. Measuring temperature electrically. KOLLSMAN INSTRUMENT Ltd. March 31, 1969, No.16629/69. Heading G1U. The resistance versus temperature characteristic of a temperature sensor, for example a thermocouple, 14, is made linear by comparing its output voltage after amplification at 18 with a feedback voltage at 24, in a modulator 20, the resultant error signal, 22, actuating a servo-mechanism 38 to position a pointer 12 to indicate the actual temperature. Fig. 3 shows the required amplifier gain as a function of thermocouple temperature to linearise the error curve Fig.2 (not shown) of a thermocouple. The gain as a function of indicated temperature, Fig. 5 (not shown) of a reference amplifier, 74, approximates to that required and is achieved by use in the amplifier feedback path of a variable resistance 62 having a short-circuit shunt 64 between one end 66 and a top 68, so that the resistance between the other end and the wiper 76 varies to control amplifier gain in the manner in Fig.5 (not shown). The output of the amplifier is applied across a linear variable resistance 28 the wiper of which is linked to the pointer shaft and the voltage on which wiper is the feedback voltage 24, which voltage varies so as to compensate the thermocouple non-linearity. In an alternative embodiment, Fig. 6 (not shown) the output of the thermocouple amplifier 18 is made a linear function of temperature by use of the shortcircuited variable resistance 62 in its feedback path. In this embodiment the resistance characteristic is doubly humped, Fig. 7 (not shown), the resistance 62 being in two parts each with a short-circuit path. The voltage fed back to the modulator is a linear function of pointer displacement since the voltage applied to the linear potentiometer 28 is invariate, the wiper 26 being linked to the pointer shaft as before. The coldjunction compensator arrangement 16 includes a bridge circuit and as well as compensating the thermocouple e. m. f. for variations in ambient temperature also serves to compensate for variations with temperature of the characteristics of the amplifier, 18.
Patent GB-696005-A (GB)
Title: Improvements in or relating to rotary machines for the projection of abrasive or granular material
Inventor: CROS GEORGES PIERRE VICTOR PAU
IPC: B24C5/06
Filed: 1951-07-13
Abstract: 696,005. Sand-blast. ETABLISSEMENTS A. SISSON - LEHMANN. July 13, 1951, No. 16738/51. Class 60. A centrifugal machine for projecting granular material, e.g. shot or abrasive, comprises a rotor having blades 6 for projecting the material and resilient members 13 acting between the blades and transverse holders 8 to secure the blades. The members 13, of rubber or other resilient material, clamp the blades 6 against shoulders 9, Fig. 2, on the side plates 10 of the rotor. Guards 20, Fig. 6, preferably of rubber or steel, prevent the granular material from being thrown back onto the blades 6, 6a. The guards may be secured to bolts 11 clamping the members 13 and pass between strips 21, 22 fixed to the plates 10, or be fastened to the plates direct. In a modification, Fig. 3, the resilient member 14 is compressed between the holder 8 and the blade. In another modification, Fig. 5, an adjustable spring 17 in or on the holder 8 urges a plunger 16 into engagement with a notch in the blade 6. The material is fed to the blades through an outlet 5 in the rotor.
Patent GB-312694-A (GB)
Title: Improvements in electric stop motions for drawing boxes for wool, worsted and like fibres
IPC: D01H13/16
Filed: 1929-05-31
Abstract: 312,694. Scott, W. J. May 31, 1928, [Convention date]. Stop-motions.-When a sliver breaks or runs slack in drawing-boxes for wool, worsted, and like fibres, it accumulates in the space 32 between the upper spindle bearing, the roller 11, and a plate 18, and by its pressure moves an insulated flexible contact 19, Fig. 5 so that it engages the plate 18, or by its weight operates a contact 22, thereby closing the circuit of an electromagnet, whereby a latch connected with a spring- controlled lever is tripped and the machine stopped. The plate 18 is hinged to permit the fitting of the spindle bearing.
Patent GB-1129041-A (GB)
Title: Combined shipping package and protective armour for glass pipe
IPC: B65D81/113
Filed: 1966-04-18
Abstract: 1,129,041. Glass pipe; pipe joints. CORNING GLASS WORKS. 18 April, 1966 [26 April, 1965], No. 16885/66. Headings F2G and F2P. [Also in Division B8] Glass tube 32 is protected in use by semicylindrical interengaging foamed plastics sheath elements 12 forming part of packaging covers (see Division B8), the ends of which are broken away to permit coupling as shown.