baber/WOPTO huggingface dataset:
Patent GB-1499307-A (GB)
Title: Circumferentially split rim type wheel assembly
IPC: B60B25/02
Filed: 1976-04-26
Abstract: 1499307 Preventing separation of the halves of a split rim whilst the tyre thereon is inflated CATERPILLAR TRACTOR CO 26 April 1976 [2 Sept 1975] 16862/76 Heading B7C Access to at least two of the bolts 18, 181 securing the two annular rim halves together is prevented by means which cannot be manually removed from a blocking position until the inflation pressure in a tyre mounted on the rim has been sufficiently reduced. In the first embodiment, the means comprises an annular member 20 pivoted at 22 to rim half 14 and a pin 25. With a tubeless or tubed tyre mounted in the rim halves the latter are secured together by bolts 18 and the member 20 is pivoted to the illustrated position. The tyre is then inflated and the pin is urged toitsillustrated position. The member may be additionally secured in its blocking position by bolts 30. When the tyre is tubeless, pin 25 seals aperture 28 and may have the inflation valve incorporated therein. In the second embodiment, at least two devices 36 constitute the means. Each device defines a U-channel 45 accommodating the head of a bolt 18<SP>1</SP>. Tyre inflation pressure maintains the device in the illustrated position, and sufficient release of that pressure allows the device to be pivoted to permit access to the bolt head.
Patent GB-757209-A (GB)
Title: Improvements in or relating to roofing and/or walling tiles
IPC: E04D1/04
Filed: 1953-06-18
Abstract: 757,209. Roofing &c. tiles. HOLDSWORTH, C. T., HOLDSWORTH, M. J., and STANWORTH, B. W. June 16, 1954 [June 18, 1953], No. 16883/53. Class 87(1). A roofing tile 1 having oppositely inclined side edges is provided on one face with flanges 2, 21 along those edges and with a flange 4 along its wider transverse edge, and on its other face with flanges 3, 4<SP>1</SP> along both transverse edges. The flange 3 may be continuous or interrupted. A central rib 5 with a wire hole 8 is provided on the one face. Alternate tiles of a course are laid opposite faces upwards.
Patent GB-246030-A (GB)
Title: Improvements in foot-propelled vehicles for infants, applicable for teaching them towalk
IPC: B62K5/00
Filed: 1925-07-01
Abstract: 246,030. Golby, F. W., (Taylor Co., F. F.). July 1, 1925. Appliances for teaching children to walk.-A vehicle adapted to be propelled by the action of a child's feet upon the ground, and designed to assist it to learn to walk comprises a board 1, 2 formed as a saddle or seat with a narrow forward part 1 adapted to be straddled by the legs of the child, front and rear bolsters 16, 5 attached to the. board and provided respectively with swivelling castors 18 and non- swivelling wheels 10, a back-rest 12 secured to the saddle 2, and a ring or band 15 secured to the back-rest and, if desired, to a front post 13. for encircling the child. The front bolster 16 carrying the castors is removable, and may be replaced by a steering-post for the use of an older child, the post being passed through tha opening 19 in the board and carrying a single front wheel at its lower end.
Patent GB-439280-A (GB)
Title: Improvements in and relating to hydraulic operating mechanism
IPC: F04D1/00
Filed: 1935-06-12
Abstract: 439,280. Hydraulic transmission of power. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. June 12, 1935, No. 16952. Convention date, June 12, 1934. [Class 69 (ii)] In hydraulic operating mechanism comprising a piston and impeller mounted in a liquid container, the impeller being adapted to produce different pressures on the opposite sides of the piston, rotary valve means surrounding the impeller controls the direction of movement of the piston. In the form shown in Fig. 1, the piston 15 is mounted in an inner container 32 spaced from an outer container 10, and the impeller 19 is mounted in a housing 18, which may be turned to one or the other of two limiting positions. The housing has upper and lower extensions 24, 25, and has ports co-operating with ports in the fixed tubular member 35, its flange 36, and the container 32. In a modification, the inner container is dispensed with, and ducts 59, 63, Fig. 6, are provided.
Patent GB-612879-A (GB)
Title: Improvements in and relating to permanent magnets
IPC: C22C33/02
Filed: 1946-06-04
Abstract: Permanent magnets made by agglomerating metallic powders are heated during or after agglomeration to 300-500 DEG C in a neutral or reducing atmosphere.  Magnets made by the methods described in Specifications 590,392 and 594,681, [Group XXXV], and heated in an atmosphere of hydrogen or wet hydrogen have their mechanical properties improved without any substantial reduction of their magnetic properties.
Patent GB-1466227-A (GB)
Title: 3-piperazino-isoquinoline derivatives
IPC: C07D217/22
Filed: 1975-04-24
Abstract: 1466227 3-Piperazino-isoquinoline derivatives DR KARL THOMAE GmbH 24 April 1975 [25 April 1974 31 Jan 1975] 17085/75 Heading C2C Novel compounds of the formula I wherein R 1  is halogen, C 1-3  alkyl, formyl, acetyl, propionyl or alkoxycarbonyl in which the alkyl is C 1-3 ; R 2  is morpholino, thiomorpholino or 1-oxidothiomorpholino and R 3  is hydrogen, fluorine, chlorine, bromine, methyl, methoxy or nitro, and acid addition salts thereof may be prepared by (1) reacting a compound II wherein Z is a leaving group with a compound (ii) for compounds I in which R 1  is hydrogen, effecting the reaction (i) using a compound III in which R<SP>1</SP> is a protecting group and thereafter removing the protecting group; (iii) oxidizing a thiomorpholino group to a 1-oxidothiomorpholino group; (iv) acylating or alkylating a compound I in which R 1  is hydrogen; (v) hydrolysing a compound I in which R 1  is alkanoyl; (vi) converting a nitro group at R<SP>3</SP> in a compound I to a hydrogen, fluorine, chlorine or bromine by reduction of the nitro to amino then forming the required compound via the diazonium salt; (vii) salt formation from a free base I. Intermediates of the formula II in which Z is chloro and prepared by reacting a 1,3-dichloroisoquinoline with morpholine, thiomorpholine or 1 -oxidothiomorpholine. Pharmaceutical compositions of compounds I with the usual excipients inhibit platelet aggregation and adhesiveness and have an effect on the prolongation of bleeding time whilst having little activity on the blood pressure when administered orally, rectally or parenterally.
Patent GB-1523225-A (GB)
Title: Methods of manufacturing carrier supports for integrated circuit chips
IPC: B42D15/10
Filed: 1976-04-27
Abstract: 1523225 Integrated circuits COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE CII-HONEYWELL BULL 27 April 1976 [13 May 1975] 17133/76 Heading H1K A flexible insulating carrier support for patterns of conductive strips for connecting the bonding pads of an IC chip to pads on a printed circuit board is made by first forming equally spaced apertures for chips along the axis of a ribbon of polyimide optionally having sprocket holes at its edges, and hot-laminating thereto a copper sheet to cover the apertures. Then within each aperture the copper is selectively exposed by described photoresist techniques over an open-centred zone or over sections of such a zone over which conductive strips of the pattern are to extend, and the exposed copper cleaned and coated with a 5-20 Á layer of PTFE or epoxy resin, e.g. by electrodeposition from a colloidal suspension. After removal of the photoresist and polymerization of the resin the ribbon is recoated with photoresist which is imagewise exposed and developed, and the thus exposed copper removed in ferric perchloride to leave the pattern of strips 27 (Fig. 8) coated over length GH with resin. A Si chip is located in each aperture, its contact pads bonded to the inner ends 15 of the copper strips, and the part carrying the pattern of strips removed from the ribbon by cutting along line 25. When the chip is then soldered to a pad on a printed circuit board and the copper strips bent down and bonded to pads on the board the resin is interposed between the strips and the edge of the chip thus preventing short-circuits.
Patent GB-171519-A (GB)
Abstract: 171,519. Piesse, M., (Nordstrom, G. W.). Sept. 2, 1920. Hatches.-A hinged hatch, manhole, or like cover is operated by means of a spindle d extending across the hatchway to the outside e, the spindle having right and left-handed screw-threads on which work nuts f pivotally connected by lazy-tongs g to the cover a.
Patent GB-172002-A (GB)
Abstract: 172,002. Siemens & Halske Akt.-Ges. Nov. 23, 1920, [Convention date]. Automatic exchange systems and apparatus.- On release the wipers of a two-coordinate switch continue their motion, under the control of the rotary magnet, until the end of the selected row is reached, whereupon they are free to restore to their normal position, the rotary magnet being continuously energized after the last contact set in the row has been reached until the switch has regained its normal position. The invention is shown in the figure as applied to a connector LW, the side switch magnet S of which is energized when the connector is taken into use, to move the side switch to position 2 in which a circuit is prepared for the vertical magnet H. A series of dialling impulses energizes the magnet H to step the wipers a<1>, b<1>, c<1> to the required level, after which the side switch is moved to position 3 in which a circuit is prepared for the rotary magnet D, which in response to the next series of impulses rotates the wipers to engage the required contact set. On the cessation of these impulses, the side switch is driven to position 4, and subsequently, if the wanted line is free and the test relay P is energized, into position 5, in which the ringing relay L is intermittently energized and projects ringing current from the generator G over the a and b wires. When the wanted subscriber answers, the line relay Y is energized and the side switch is driven into the talking position 6. Release is effected when both subscribers hang up, a circuit then being completed over the contacts 32, 33 for the magnet S which moves the side switch to position 7, where a self-interrupting circuit 22, 35, 34, 18, 19 is completed for the rotary magnet D. The wipers are now advanced over the remaining contacts in the level. When the last contact is passed the pawl holding the wiper shaft is released, and the off normal contact 36 is closed to maintain the rotary magnet D energized until the wipers have fallen to the normal level. In this position the circuit of the magnet D is broken at the contact 22, whilst the sideswitch is energized over contact 37 and returns to position 1. A third release movement is now effected in known manner to return the connector wipers to their starting point. The off normal contact 39 is closed in positions 2 to 5 of the sideswitch whilst the off-normal contact 39 is closed on the first vertical step of the connector, so that if the calling subscriber hangs up before a connection is established or because the wanted line is busy, the side switch will move to position 6 from which it is driven to position 7, where release takes place as described above. The invention may be applied to group selectors and call finders, and to switches having several sets of wipers, for instance, three sets 120‹ apart, in which case a third release movement may not be necessary.
Patent GB-936620-A (GB)
Title: Process for the production of a stable solution of melamine formaldehyde condensation products
IPC: C08K5/43
Filed: 1960-05-16
Abstract: A process for the preparation of a stable solution of a condensation product of melamine with formaldehyde comprises condensing formaldehyde and melamine in an aqueous alcoholic alkaline medium (the alcohol molecule having 1 to 4 carbon atoms) until the polymer produced thereby produces a turbidity with water under specified conditions of dilution, then adding to the polymer so produced o- or p-toluene sulphonamide or a mixture thereof in a proportion of from 0,05 to 0,15 mols. of sulphonamide per mol. of melamine.  Preferred conditions are a melamineformaldehyde ratio between 1:2 and 1:4 and a condensation pH between 7,5 and 10,0.  In examples the alcohols used are glycerol, methanol, and a mixture of methanol, ethanol and glycerol.
Patent GB-595536-A (GB)
Title: Improvements relating to alternating electric current rectifiers of the dry surface contact type
IPC: H01L21/06
Filed: 1945-07-06
Abstract: 595,536. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and THOMPSON, L. E. July 6,1945, No. 17266. [Class 37] In a dry contact rectifier a continuous thin strip or band 4 of insulating material is applied to the edge of a base plate 1 so as to overlap the adjacent edge of a counter electrode 3, and a protective layer 5 of non-porous metal or alloy is applied by spraying &c., to cover the remaining portion of the electrode and extend over the insulating strip. Access of moisture &c. to the rectifying boundary between the selenium or other coating 2 and the counter electrode 3 is thus prevented. The invention is also applied to a rectifier element with a central fixing hole (Fig. 2, not shown), the rim round the hole being protected with an insulating strip. The non-porous metal may also be applied so as to form a seal between the strip 4 and the base 1. The Provisional Specification describes also a rectifier element in which a flexible protecting plate is used in place of the sprayed-on metal. In another form a thin plate of the same shape and area as the counter electrode is applied to the latter and the edges of the element sealed with insulating material. The edges of the protecting plate may be flanged or grooved to provide a channel which is filled with the sealing material.
Patent GB-726276-A (GB)
Title: Improvements in or relating to magnetic recording heads
IPC: G11B5/187
Filed: 1953-06-23
Abstract: 726,276. Magnetic recording and reproducing apparatus. DICTAPHONE CORPORATION. June 23, 1953 [July 14, 1952], No. 17354/53. Class 40 (2)  In a magnetic recording system where there is an overlapping of the record medium 10, interruption in the recording or reproduction is effected by providing the transducer 16 with a recessed trailing pole-piece 22.
Patent GB-761231-A (GB)
Title: A pressure operated electric switch
Inventor: FORESTER GERALD OWEN
IPC: H01H35/26
Filed: 1952-07-10
Abstract: 761,231. Actuation of switches. TEDDINGTON AIRCRAFT CONTROLS, Ltd., [formerly TEDDINGTON CONTROLS, Ltd.]. Aug. 6, 1953 [July 10, 1952], No. 17461/52. Class 38(5) A pressure-operated switch, particularly for actuating a device for indicating a particular Mach number at which an aircraft is flying, comprises a pair of bellows 1, 2 connected at one end to a fixed bracket 3, the bellows 1 being evacuated and spring-loaded so as to be responsive to atmospheric pressure and bellows 2 being connected to a pitot head. The moving ends of the bellows are adjustably connected to a beam 6 pivoted at one end by means of a blade 11 and carrying at its other end the moving contact 10 of a switch in a relay circuit. When the ratio between the pressures in the bellows reaches a predetermined value, the beam is rocked to open the switch. To counteract the effect of external forces on the beam a counter-weight 17 is mounted on a balance arm 15 pivoted at 16 intermediate its ends and connected by a link 18 to the beam. An additional switch may be operated by the beam to control a holdon circuit associated with the relay. According to the Provisional Specification the switch contacts are connected directly in the circuit of the indicating device and are normally open.
Patent GB-380155-A (GB)
Title: Improvements in or relating to apparatus for testing the strength of material
IPC: G01N3/02
Filed: 1931-06-16
Abstract: 380,155. Testing strength of materials. BERRIDGE, H., 8, Worcester Gardens, Sutton, Surrey. June 16, 1931, No. 17477. [Class 106 (ii).] Apparatus for testing by crushing samples of mortar or other substance in about # in. or ¢ in. cubes comprises a metal base plate 1 on which slides a plate 2 between which and an actuating screw 11 is a spring balance 10. The plate 2 is slotted, guide bolts 3 screwed into the base passing through the slots. The plate 2 is provided with a jaw 7 between which and a fixed jaw 5 on the end of the base the sample to be tested is placed. A slot 6 in the plate accommodates the jaw 5. The spring balance 10 is connected at one end by a hook 9 to the sliding plate 2 and at the other end to a screw 11 moved axially by turning a nut to which a handle is attached. The index 10a gives the stress applied and a frictionally held index 10b pushed by the index 10a gives the maximum stress applied. In a modification the screw is mounted below the base and rotated to move a guided nut to which is attached a spring balance having a circular dial. The Specification also describes a mould for making specimens of the mortar or like to be tested, which comprises two wooden blocks connected by screws which pass through distance pieces at the ends. The space between the blocks is divided into cubes by wooden slides inserted into notches in the blocks. The mould is filled with the material, the blocks clamped together, and the material allowed to set for two days.
Patent GB-263739-A (GB)
Title: Improvements in machines for cutting ribbons from bias or straight-woven textile fabric, leather, rubber or other similar materials
IPC: D06H7/12
Filed: 1926-07-13
Abstract: 263,739. Brandon, S. A. Dec. 29, 1925, [Convention date]. Cutting cylinders obliquely. - A machine for cutting bias strip from tubular fabric has rotated feed rolls 6, 7 over which the fabric is fed to a rotary disc 11. The roller 6 is conical and feeds the material axially to an end gauge 19. To assist the axial feed of the fabric push-rods 22, 25 are swung on a pivot 21 to push back the material remote from the edge gauge. To straighten a long tube which overhangs the feed rolls, a bent arm 31 is provided. The edge gauge 19 has a shaped nose 49 and is hinged to brackets 34 carrying fixed bars 20. Bars 33 are attached to the gauge 19 and the fabric is threaded through the bars as shown in Fig. 6. Both feed rolls may be conical and may carry a screw thread for feed purposes.
Patent GB-248244-A (GB)
Title: Improvements in attaching means for cover glasses and the like
IPC: G04B39/00
Filed: 1925-07-08
Abstract: 248,244. Rombach, T. July 8, 1925. Dials. - Means for detachably securing lenses, dial and cover glasses, &c. comprises a locking-ring 4 or frame inserted between the lens 3 &c. and the inner expansible wall of the bezel 1 of the instrument &c., the lens &c. resting on an internal flange 2, stops, abutments, or the like on the bezel. Fig. 3 shows means for securing a clock glass. The bezel 1 is made channel-shaped as shown so that its inner wall or walls are resilient laterally, and the locking- ring 4 is provided with an inwardly directed flange 5. The ring may have its inner edge slightly inturned, or its outer face concave, or both to facilitate assembling.
Patent GB-1242520-A (GB)
Title: Photoelectric read-out apparatus
Inventor: YANAGAWA SAKAE
IPC: G06K7/00
Filed: 1970-04-14
Abstract: 1,242,520. Sensing records. TOKYO SHIBAURA ELECTRIC CO. Ltd. 14 April, 1970 [14 April, 1969], No. 17584/70. Heading G4M. A light source 34n is pulsed by a generator 42 so that its associated detector 33n produces a train of pulses each time it detects a sprocket hole, e.g. in a punched tape, and after a number of such pulses, e.g. 2, bi-stable 55 is set to initiate a sprocket pulse for the sensing of the data tracks by sources 34 and detectors 33, the sprocket pulse being terminated by the resetting of bi-stable 55 when the pulse output of 33n has been absent for a given number, e.g. 2, of pulses from generator 42. After bi-stable 55 has been set, counter 57 and gates 58-60, 80, 81 energize the data track sources for two successive pulses from generator 42, the first of these pulses gates the outputs of the detectors 33 into bi-stables 62, and the second transfers the states of bi-stables 62 to output register 40, and at the same time causes the states of bistables 62 to be compared with the outputs of detectors 33 in gates 64-68 to set an error bi-stable 71 if they do not agree.
Patent GB-353622-A (GB)
Title: Improvements in carrying out catalytic gas reactions
IPC: C01C1/04
Filed: 1930-06-06
Abstract: In catalytic gas reactions wherein the catalyst is activated by an addition of an alkali or alkaline earth metal, the latter is used in the state of vapour.  This is preferably effected by passing a part or the whole of the reaction gas over the activating metal at a temperature at which the latter is vaporized to a substantial extent, before admitting it to the reaction chamber.  According to examples, (1) a nitrogen-hydrogen mixture for ammonia synthesis is passed at 200 atmospheres and 400 DEG  C. over heated potassium and then over an osmium catalyst at 450 DEG  C.; (2) a similar gas mixture is activated by passage over heated calcium, an iron catalyst being used; (3) methane is passed over potassium at 400 DEG  C. and then over finely divided nickel at 1000 DEG  C. yielding hydrogen and hydrocarbons containing more than one carbon atom.ALSO:In catalytic gas reactions wherein the catalyst is activated by means of an alkali or alkaline-earth metal, the latter is used in the state of vapour, preferably by passing the gas over the heated metal before bringing it into contact with the catalyst proper. According to an example, methane is passed over potassium, at 400 DEG  C., and then over finely divided nickel at 1000 DEG  C. and yields a mixture of hydrogen and hydrocarbons containing more than one carbon atom.
Patent GB-1479577-A (GB)
Title: Electrically-powered heating elements
IPC: H05B3/34
Filed: 1976-04-30
Abstract: 1479577 Transformers DAVID GRIFFIN Ltd 30 April 1976 17633/76 Heading HIT [Also in Division H2] A transformer 15 used for supplying an electric blanket from an A.C. supply is associated with a normally closed thermally operated switch 13 the switch being operated when the transformer temperature reaches a threshold value. The switch 13 may be mounted so as to be responsive to the temperature of the secondary winding 14 of the transformer 15-as shown in Fig. 3-or alternatively, to respond to the temperature of the core 25.