baber/WOPTO huggingface dataset:
Patent GB-584321-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/171
Filed: 1944-06-30
Abstract: 584,321. Chucks. STEINLE, L. C., and HANWELL, C. H. June 30, 1944, No. 12485. [Class 83 (iii)] Chucks have the guiding sliding surfaces of the jaw supports extended beyond the radial dimensions of the jaws. In addition, the surfaces may be extended laterally. As applied to the nuid-operated chuck described in Specification 584,320, the jaws f are adjustably attached by screws g and serrated surfaces e to supports a, b, c sliding in guides in the body. Each support has a banjo-shaped extension, the extensions h, i and j being staggered axially as shown in Fig. 2. The holes in the extensions are concentric when the jaws are in their midposition. In modifications, the extensions are of T or plain rectangular form.
Patent GB-803873-A (GB)
Title: Rim structure
IPC: B60B25/22
Filed: 1956-04-24
Abstract: 803,873. Wheel rims. GOODYEAR TIRE & RUBBER CO. April 24, 1956 [Oct. 31, 1955], No. 12485/56. Class 144 (2). A rim assembly for tubeless tyres comprises an annular rim base 1 having at one side a tapered tyre bead seat 9 terminating in a radially outwardly extending integral side ring retaining flange 5, a detachable side ring 7 defining an annular chamber 27 with a cylindrical seating 6 on the rim base adjacent the flange 5, an annular gutter 10 around the other side of the rim base 1 receiving a split locking ring 22 which locates and retains on the rim base an endless detachable tapered bead seat ring 12, an annular groove 11 in the rim base 1 adjacent to, but spaced laterally inwardly of, the gutter 10 and defining with the radially inner surface of the bead seat ring 12 an open-sided chamber 21, and a second detachable side ring 24 retained by an integral flange 13 on the detachable bead seat and defining, with a cylindrical seating 15 on the bead seat ring 12 adjacent its flange 13, a second annular chamber 28, there being resilient deformable sealing rings 29, 30, 31 in the chambers 27, 28, 21 respectively which are subjected to axial and radial distortion in the assembled state of the rim thereby to seal the gaps between the rim parts. As shown, the rim base may comprise three rolled and welded sections 2, 3, 4, and the bead seat ring 12 may have a recessed undersurface to provide a shoulder 19 to engage and distort the sealing ring 31 when the ring 12 is moved, on tyre inflation, in bevelled mating engagement with the locking ring 22. To facilitate retention of the sealing rings 29, 30, grooves 8 and 16 may be provided in the seatings 6 and 15 respectively to co-operate with recesses 25, 26 in the 'associated side rings 7, 24 and form the chambers 27, 28. Reference has been directed by the Comptroller to Specifications 744,085 and 770,378.
Patent GB-552261-A (GB)
Title: Wrench for lock-nuts
IPC: B25B13/48
Filed: 1941-09-26
Abstract: 552,261. Wrenches. THOMPSON, A. H. Sept. 26, 1941, No. 12506. [Class 61 (iii)] A wrench for manipulating lock nuts b of the kind having rigid flanges bl with resilient radial tongues b<SP>2</SP> toothed at b<SP>3</SP> to engage the threads of the screw c comprises a body 7 having a socket 9 to receive the screw and slotted to form a number of members 11 adapted to engage between the tongues and the flanges, which members 11 are formed with abutments 12 to engage the end of the rigid flanges b<SP>1</SP> when the wrench is turned to force the nut on the screw, abutments 13 to release the resilient tongues when the wrench is turned to remove the nut and other abutments 14 to rigidly engage the flanges b<SP>1</SP> for removing the nut after the resilient tongues have been released.
Patent GB-1453579-A (GB)
Title: Gold club with polyurethane insert
IPC: A63B53/04
Filed: 1975-03-26
Abstract: 1453579 Golf clubs ACUSHNET CO 26 March 1975 12585/75 Heading A6D  A golf-club 10 has a shaft 12 and a club head 14 having a polyurethane striking plate 16. The polyurethane is a prepolymer selected from the group consisting of polycondensation products of polyesters and polysthers with diisocyanates and a curing agent for the prepolymer selected from the group consisting of trifunctional polyols, tetrafunctional polyols and amine compounds having at least two amine groups. Alternatively the polyurethane may be defined in terms of its physical properties, namely, having a tensile strength from about 1500 p.s.i. to about 8000 p.s.i. as measured by ASTN Standard D412, a hardness from about 50 to about 75 on the Shore Durometer D Scale according to ASTM Standard D 2240, elongation from about 50% to about 300% as measured by ASTM Standard D412, and a rebound value above about 17 on a Bashore Resiliometer as measured by ASTM Standard D 2632-67
Patent GB-1042604-A (GB)
Title: Composite metallic plates of titanium and dissimilar mother metals
IPC: B23K35/00
Filed: 1963-03-29
Abstract: A composite metallic plate includes a titanium lamination bonded directly to a plate of dissimilar mother metal on at least one face, the mother metal being an iron-base alloy containing any one of Mo, V, Nb, W each 0.3-10% and Zr 0.3-6%, with balance Fe and incidental impurities such as .08-.12% C,. 18-.25% Si,.40-54% Mn, max.0.018% and 0.016% P and S. A stacked assembly of the above, preferably with a cover plate superposed on the exposed titanium face may be heated under an inert gas to 800-1000 DEG C. and immediately hot rolled to 50-80% reduction.
Patent GB-457437-A (GB)
Title: Improvements relating to the manufacture of finely divided substances for, use for example, in rubber mixings
IPC: C08K3/26
Filed: 1936-05-04
Abstract: A solution of an alkali zincate is decomposed with magnesium bi-carbonate to obtain an inorganic colloid comprising zinc oxide, magnesium oxide, and carbon dioxide, which, after rinsing and drying at a low temperature, may advantageously be used as a filler and vulcanization accelerator in the rubber industry, particularly in the manufacture of rubber and rubber articles of a light colour.  By decomposing a neutral zincate solution with an equimolecular quantity of the bicarbonate, a product containing zinc and magnesium oxides in molecularly equivalent quantities is obtained; by first precipitating a part of the zinc oxide by carbon dioxide or an alkali metal or ammonium bicarbonate and completing the decomposition with magnesium bi-carbonate, preferably whilst maintaining the initially precipitated zinc oxide in suspension, a product containing an excess of zinc oxide is formed; whilst by neutralizing the initial zincate solution with magnesium bicarbonate prior to effecting its decomposition by the same reagent, a product containing an excess of magnesium oxide is produced.  Drying of the product may be effected by atomizing an aqueous suspension thereof into a current of hot air. Rubber mixings may contain up to 30 per cent by volume of the product, whilst transparent vulcanized articles may be obtained containing up to 15--20 per cent of the product.  Specification 453,318 is referred to.ALSO:A solution of an alkali zincate is decomposed with magnesium bicarbonate to obtain an inorganic colloid comprising zinc oxide, magnesium oxide, and carbon dioxide, which, after rinsing and drying at a low temperature, may advantageously be used as a filler and vulcanization accelerator in the rubber industry, particularly in the manufacture of rubber and rubber articles of a light colour.  By decomposing a neutral solution of the zincate with an equimolecular quantity of the bicarbonate, a product containing zinc and magnesium oxides in molecularly equivalent quantities is obtained; by first precipitating a part of the zinc oxide by carbon dioxide or an alkali metal or ammonium bicarbonate and completing the decomposition with magnesium bicarbonate, preferably whilst maintaining the initially precipitated zinc oxide in suspension, a product containing excess of zinc oxide is formed; whilst by neutralizing the initial zincate solution with magnesium bicarbonate prior to effecting its decomposition by the same reagent, a product containing excess of magnesium oxide is produced.  Drying of the product may be effected by atomizing an aqueous suspension thereof into a current of hot air.  Rubber mixings may contain up to 30 per cent by volume of the product, whilst transparent vulcanized articles may be obtained containing up to 15-20 per cent of the product.  Specification 453,318, [Group III], is referred to.
Patent GB-1455754-A (GB)
Title: Separation of paraxylene
IPC: C07C7/14
Filed: 1974-03-21
Abstract: 1455754 Crystallizing para-xylene ATLANTIC RICHFIELD CO 21 March 1974 [26 March 1973] 12639/74 Heading C5E Paraxylene is separated from a feedstock consisting of aromatic hydrocarbons having not more than 8 carbon atoms and containing at least 21% paraxylene by (a) cooling the feedstock and separating the crystallized p-xylene as a crude filter cake, e.g. by centrifuging or filtering; (b) subjecting the filter cake, which is maintained at - 75 to - 50 C. throughout the purification, to flood washing for less than 2 minutes with a hydrocarbon solvent having a freezing point in the range - 130 to - 60 C. and a boiling point in the range 35 to 115 C., said solvent having an initial temperature in the range of - 70 to - 40 C. and constituting 20- 90% of the initial weight of the filter cake; (c) withdrawing the wash solvent from the washed cake and (d) melting and distilling the purified cake to recover p-xylene having a purity of at least 99À2%. Suitable solvents are toluene, cyclopentane, methylcyclohexene, other alkylcycloalkanes, isooctane and a naphtha fraction boiling in the range 90 to 100 C.
Patent GB-1298275-A (GB)
Title: Multiple switch apparatus
Inventor: LEBLANC ROBERT
IPC: H03K17/00
Filed: 1970-03-17
Abstract: 1298275 Automatic exchange equipment INTERNATIONAL BUSINESS MACHINES CORP 17 March 1970 [19 March 1969] 12653/70 Heading H4K In a switching matrix having a plurality of crosspoint switches, for connecting any first wire to any second wire, not all the switches associated with any one first wire are operable by the same control means. As shown in Fig. 1 which uses PNPN rectifiers to make the crosspoint connections, the operating wire G1 controls rectifiers K11 K12, K23, K24 so that in the event of a failure on this operating wire, connection can still be made from the row line E1 to a column line through rectifiers K13, K14 controlled through operating wire G2. In the modification shown in Figure 3 the row wire E1 forms crosspoints both in the first and second row positions at K11, K12 and K23, K24 respectively and this construction can be used in crossbar switches to avoid distorting the operating rods. In a further modification, Fig. 5 (not shown), the operating wires are disposed diagonally across the matrix. (For Figures see next column.)
Patent GB-199212-A (GB)
Title: Improvements in electric hand laundry irons of domestic and laundry type
IPC: D06F75/28
Filed: 1922-05-05
Abstract: 199,212. Warbrick, E., and Callender's Cable & Construction Co., Ltd. May 5, 1922. Electric hand-irons. -The flexible leads h for current are so connected to the heating resistance that heat from the resistances is dissipated before reaching the insulation of the connections, by coupling them first to an insulated socket f, such as a bayonet lamp holder, mounted by brackets g on the hollow handle a of the iron, and at the end remote from the connection to the heating elements, thence passing the wires b, insulated by side means as glass beads or porcelain fish-spine beads c, through the handle and finally connecting them to terminal sockets d of brass or other suitable material, shrouded in small terminal porcelain or like insulators that fit on the ordinary terminals e projecting at the rear of the iron. An antikinking spiral spring j is applied to the flexible leads h.
Patent GB-1084581-A (GB)
Title: Apparatus for controlling the intensity of the jigging pulses in jigging machines in which the pulstation chambers are disposed below the jig screen
IPC: B03B5/24
Filed: 1965-03-25
Abstract: 1,084,581. Jig washers. SCHUCHTER-MANN & KREMER-BAUM, A.G. FUR AUFBEREITUNG. March 25, 1965 [Nov. 12,1964], No. 12776/65. Addition to 992,728. Heading B2H.  A jig washer having pulsation air chambers 3 below a screen 2 is provided with a float 20 which, when the supply of material stops, operates to open a flap valve 12 in the blowoff pipe 10 in the compressed air line 7 to the chambers and to close a throttling valve 18 in the water supply pipe 17. The float 20 operates through magnetic switches 22, 23, a control device 21 which, when the float sinks, operates motors 19 and 15 so as to close the water throttling valve 18 and open the flap valve 12 which is connected by a link 14 to simultaneously close a throttling valve 9 in the exhaust line 8 from air control valves 5. Such an arrangement maintains a back pressure in the chambers 3 so that flooding of the air spaces is prevented. The angle of the throttling valve 9 may be adjusted. A throttle setting valve 11 is provided and adjusted by hand so that when the flap valve 12 is opened, a portion of the compressed air escapes, a low pressure being maintained in the chambers 3. Instead of a single throttling valve 9 being connected by linkage to the flap valve 12, several throttling valves 16 provided at the outlets of the air control valves may be so connected to the flap valve.
Patent GB-918535-A (GB)
Title: Improvements in or relating to cross-over circuits having negative feedback
IPC: H03F3/44
Filed: 1959-04-15
Abstract: 918,535. Cross-over circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 15, 1959 [April 18, 1958], No. 12809/59. Class 40 (4). In a cross-over circuit comprising high- and low-frequency speakers 23, 24 shunted respectively by an inductance 19 and a capacitor 20, negative feedback voltage is derived from the common point of resistors 17, 21 in a series circuit comprising these latter and a condenser 18, shunted across the inductance. At high frequencies the voltage across the serially connected resistor 17, 21 is substantially that across the high-frequency speaker 23. At low frequencies condenser 18 isolates the output of valve 14 from the feedback circuit and the feedback voltage is substantially that across the low-frequency speaker 24. Thus the feedback voltage consists of individual voltages representative of each of the voltages occurring across the speakers. In a modification the inductance 19 and capacitor 20 are interchanged and the capacitor 18 is replaced by an inductance. The arrangements described eliminate the lowfrequency distortion prevalent in conventional systems due to overload of the cross-over inductance.
Patent GB-132311-A (GB)
Title: Improvements in casement windows
Inventor: BAXTER EDMUND GEORGE
IPC: E06B3/34
Filed: 1918-08-07
Abstract: 132,311. Baxter, E. G. Aug 7, 1918. Hinges arranged to act alternatively at either side of door, flap, and the like; securing flaps in a given relative position.-A casement which may be opened on either side of the frame is provided on each sash stile with hinges having a leaf 5 formed with a bulge 6 normally engaged by a third pivoted leaf 10, but detachable therefrom by a device so that either side of the casement may be freed and the other hinged. The device comprises a wedge 11 on the back of each leaf 10, and wedges 12 on a vertical rod 13 at each side. The rods 13 can be raised by a lever (not shown), and are caused to move in opposite directions by a rod 17 suitably guided and engaging wedges 15 on the rods. To hold a rod up on an open side, a pivoted stop 19 is turned by a spring 23 when the projection 20 on the sash is removed, and a lip 24 on the arm 18 is moved under a nib piece 25 on the rod 13. When the sash is closed, the stop 19 turns and its arm 18 is disengaged from the rod 13 and engages a notch 22 to lock the sash. As modifications, the sliding rods 13 may be replaced by a rotary device, and the hinges may be fixed to the frame and the operating devices to the sash.
Patent GB-485183-A (GB)
Title: Improvements in or relating to coffer dams
IPC: E02B3/06
Filed: 1936-11-12
Abstract: 485,183. Cofferdams. DORTMUNDHOERDER HUTTENVEREIN AKT.-GES. Nov. 12, 1936, No. 12863/38. Convention date, Nov. 12, 1935. Divided out of 485,095. Drawings to Specification. [Class 68 (ii)] A floating cofferdam adapted to be held by water pressure against a vertical submerged surface such as sheet piling, to facilitate painting or other treatment, is associated with a separate sealing frame and with a plate which are left in front of the submerged surface, after the cofferdam has been removed, to allow time for drying of the paint &c. The description is substantially the same as that of Specification 485,095, but the claims differ.
Patent GB-553135-A (GB)
Title: Improvements in the manufacture of titanium pigments
IPC: C09C1/36
Filed: 1941-10-06
Abstract: 553,135. Titanium dioxide. NATIONAL 'TITANIUM PIGMENTS, Ltd., and BENNETT, A. N. C. Oct. 6, 1941, No. 12893. [Class 1 (iii)] Rutile titanium dioxide pigments of improved colour &c. are produced by calcining with the addition of a small proportion of magnesium or lithium compounds a titanium dioxide precipitate which has the property of yielding a rutile pigment when calcined alone, such property not being enhanced by calcination in the presence of a substance capable of promoting the change of an anatase yielding precipitate to rutile. The proportions of magnesium are from 0.2 to 1.0 per cent. calculated as MgO and 0.06 to 0.60 per cent. calculated as Li 2 O. Small proportions of potassium or sodium compounds may be employed together with the magnesium or lithium. Specifications 513,867, 533,227 and 546,283 are referred to.
Patent GB-541393-A (GB)
Title: Automatic control system for a carrier-wave signal receiver
IPC: H03J7/04
Filed: 1940-08-16
Abstract: 541,393. Automatic tuning correction. HAZELTINE CORPORATION. Aug. 16, 1940, No. 13112. Convention date, Sept. 13, 1939. [Class 40 (v)] In a superheterodyne receiver having an automatic frequency control of the kind comprising a discriminator network for applying a frequency control bias to an oscillator control tube, means are provided for applying a low-frequency voltage to the control tube for varying periodically the oscillator frequency to tune the receiver to signals which initially are out of the frequency response range of the discriminator, and means for removing the low-frequency voltage from the control tube when the signal frequency has a value within the frequency-response range of the discriminator. As shown in Fig. 1, the intermediate frequency output is applied to a discriminator network 23, 24, 25, 26 which feeds a double diode 27, 28 having load resistors 29, 30 from which a negative bias is taken and fed through lead 20 to the control grid of an oscillator control tube 21. An A.C. voltage 38 of, say, 60 cycles is fed through valve 36 and transformer 34, 35 to vary the oscillator frequency over a wider range than that of the discriminator. When a signal is received in this range, the discriminator functions to lock it in. Also the negative bias developed across resistor 30 biases valve 36 to cut-off and so removes the effect of voltage 38. In a modification, Fig. 2 (not shown), the diodes are reversed so that the bias for removing the lowfrequency voltage is a positive one and acts by energizing a gas discharge tube arranged to short circuit the transformer 34, 35. In a further medification, Fig. 3 (not shown), ,the auxiliary lowfrequency voltage is rectified and used to mute the audio-frequency stage between stations. Specification 532,081, [Group XXXV], is referred to.
Patent GB-776762-A (GB)
Title: Improvements in or relating to agricultural implements
Inventor: QUINTARD RAYMOND
IPC: A01B3/40
Filed: 1953-05-12
Abstract: 776,762. Agricultural implements. FERGUSON DE FRANCE SOC. ANON., H. May 12, 1954 [May 12, 1953], No. 13181/53. Class 6(1). In a tractor-drawn plough, the implement supports 1, 1A are formed integrally with a central boss 3 in which are attached bars 5 spaced apart in the plane of the supports. As shown applied to a twofurrow reversible plough two sets of bars 5 are spaced apart laterally and braced by a bar 16 secured in the bosses 3. The front ends of the bars 5 are secured by bolts 23 in laterally spaced bosses 6 mounted on a cross-piece 7 provided with lugs co-operating with a swivel pin 10 and lugs 9 to form a swivel joint on a flange 12 at the rear end of a shaft 13 which is rotatable by hydraulic mechanism which is under the control of the hydraulic system of a tractor to which the implement is attached by a three-link hitch mechanism. The hydraulic mechanism may be as described in Specification 776,761. The angular setting of the plough assembly may be adjusted by means of set screws 14 in the crosspiece 7 which engage against abutment surfaces 15 on the flange 12. Disc coulter and skimmer assemblies 18 are mounted on cranked stems 18A which are held in recessed lugs 19 on clamps 20 mounted on the bars 5 and clamped by means of eye-bolts 21 permitting fore-and-aft and vertical adjustment of the coulter assemblies. Fore-and-aft adjustment of the plough bodies may be provided by the provision of a plurality of spacers 6A which can be located either to the rear or in front of the bosses 3. To convert to a single furrow plough, the rear plough bodies together with the supports may be removed and replaced by a boss having means for reattachment of the bracing rod 16,
Patent GB-579414-A (GB)
Title: Improvements in or relating to electric wave filters
IPC: H01P1/203
Filed: 1941-10-15
Abstract: 579,414. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd., and ROGERS, D. C. Oct. 15, 1941, No. 13272. [Class 40 (iii)] A filter for ultra-high frequencies comprises a thin metallic sheet having alternate wide and narrow portions as shown separated by a sheet of mica or other dielectric material from another metallic sheet which, if the filter is to be balanced, is of the same form as the first one. The several sheets may be clamped together, or a layer of metal, such as copper or silver, may be deposited on one or both sides of the dielectric sheet. In the case of an unbalanced filter, the second metallic sheet may constitute a part of the screen of the apparatus in which the filter is mounted, and preferably an 'additional earthed metal screen is provided outside the formed sheet. The Specification contains a mathematical discussion and explains the procedure for designing the filter to meet given requirements. Specification 541,380 is referred to.
Patent GB-385836-A (GB)
Title: Improvements relating to the manufacture of domestic boilers
IPC: B21D22/02
Filed: 1932-05-09
Abstract: 385,836. Pipe joints. TRIPLEX FOUNDRY, Ltd. and HORRELL, C. R., Great Bridge, Staffordshire. May 9, 1932, No. 13283. [Class 99 (i).] Pipes are connected to a domestic boiler a by means of raised hollow bosses c in the metal of the boiler, filled with a non-ferrous metal d which is drilled and internally screwthreaded.
Patent GB-1387816-A (GB)
Title: Thermal insulation slab
IPC: E04B1/66
Filed: 1971-05-05
Abstract: 1387816 Laminated wood wool panels; finishing edges TORVALE HOLDINGS Ltd 4 May 1972 [5 May 1971] 13287/71 Headings B5N and B5K Thermal insulation slabs, for roofing comprise wood wool slabs 1, 2 sandwiching a water vapourimpermeable synthetic plastics sheet 3, e.g. polyethylene. As shown, the assembly is clamped at its edges by channel members 4 adhered to the edge 5 of the layer 3 which has been folded around one of the layers 1, 2. The layers 1, 2, 3 may be bonded together.