baber/WOPTO huggingface dataset:
Patent GB-1434928-A (GB)
Title: Power transmissions
IPC: F16H3/08
Filed: 1973-04-24
Abstract: 1434928 Change-speed gear; toothed gearing E A PENGILLY 30 April 1973 [29 April 1972 24 April 1973] 20002/72 and 19358/73 Headings F2D and F2Q In a power transmission system in which a first helical gear-wheel rotates with a first rotatable member and meshes with a plurality of further helical gear-wheels coupled to a second rotatable member the first wheel is so mounted as to be able to pivot about an axis transverse to is rotational axis under the action of reaction forces arising from its engagement under load with the further wheels to achieve equal, or unequal, sharing of the load transmitted by the further wheels. In the two-ratio transmission system of Fig. 1, direct drive between input and output shafts 10, 14 is established by a clutch 40, 46, and reduced drive by the clutch 40, 44. A helical gear-wheel 38 meshing with two further wheels 34, 36 on parallel countershafts 18, 20 is clamped between annular elastomeric blocks 48 and connected to the input shaft by teeth 50 which are so shaped as to permit the wheel to pivot about an axis normal to the plane of the Figure. The wheels 26, 28, 30 may have helical or straight teeth. A multi-speed transmission system comprises a main section, Fig. 2A, providing four ratios and direct drive, and a range section, Fig. 2B, providing direct and a reduced drive and also including reversing gearing (not shown). The input shaft 62 of the main section has a helical or straight toothed connection 116 with a helical wheel 106 which is meshed with wheels 102, 104 fast on countershafts 80, 82. Also fast on the countershafts are wheels 118, 120, 122, 124 in mesh with wheels 128, 130, 132, 134 which are clutchable selectively to a main shaft 70. The wheel 106 is also clutchable to the main shaft 70 for direct drive. The toothed connection 116, together with elastomeric rings 110 and a part-spherical bearing 108, permit movement of the wheel 106 to equalize the load transmitted through the two countershafts. The main shaft 70, which constitutes the input shaft of the range section, may be clutched directly to the output shaft 66, or a sleeve 153 carrying a pair of helical wheels 144, 146 may be clutched to the shaft 66 for reduced drive. The wheels 144, 146 are mounted between elastomeric rings 155 so that they also have freedom to equalize tooth loadings. The countershafts 80, 82 have extensions (not shown) carrying wheels clutchable thereto and meshing with the wheels 138 for reversing. Procedures are described for setting up the gearing for minimum deflection of the pivotal wheel or wheels during operation and for ensuring load sharing and prevention of "binding" of gear-wheels during overrun. Such procedures involve the axial positioning of wheels on their shafts and the choice of suitable helix angles for different sets of wheels in a transmission system.
Patent GB-1110674-A (GB)
Title: Improvements in guillotine shears
IPC: B23D35/00
Filed: 1965-05-07
Abstract: 1,110,674. Shearing. P. COLLY. 7 May, 1965 [22 May, 1964], No. 19360/65. Heading B3W. In a reciprocating shear the movable blade slides in guides which are pivotally mounted on the shear frame and which are movable to adjust the cutting clearance between the blades by self-holding adjusting means. The movable blade 3 is mounted on a holder 2 which is held against guides 4 at each side of the shear by spring pressure or fluid cylinder means 5. The guides 4 are mounted on pivots 8 and are acted on by shoes 9 which each have a bore housing an eccentric 11. These eccentrics are mounted on a common shaft 12 which is rotatable by a screw-operated lever 14 or by a hand wheel and gearing. The slope of the movable blade relative to the fixed blade is controlled by two hydraulic cylinders 23, 24 connected to a flap valve 15, the position of which is adjusted by a lever 16 actuated by the screw 19 which rotates the lever 14, so that both the clearance between the blades and the slope of the movable blade are adjusted simultaneously. The slope-adjusting mechanism is fully described in French Specification 1,404,664.
Patent GB-1137882-A (GB)
Title: Polyester plasticisers
Inventor: AITKEN ROXBURGH RICHMOND
IPC: C08L27/06
Filed: 1965-05-07
Abstract: 1,137,882. Polyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 April, 1966 [7 May, 1965], No. 19401/65. Heading C2C. [Also in Division C3] Polyesters of molecular weight 500-10,000 are prepared by reacting together a mixture of (a) 1C-65 mole per cent of #-caprolactone, (b) 45-17¢ mole per cent of an aliphatic diol and (c) 45-17¢ mole per cent of an aliphatic dicarboxylic acid, so that the overall ratio of C to O atoms in the product, excluding terminal group oxygen atoms, is at least 4À5: 2, and provided that when both (b) and (c) are single compounds at least one of them carries one or more C 1-4  alkyl groups substituent on the main chain C atoms. Components (b) and (c) may be mixtures and (c) may comprise up to 10 mole per cent of an aromatic dicarboxylic acid; preferably the molar proportion of (b) exceeds that of (c). Suitable components are ethylene, propylene, butylene-1: 2-, -1: 3-, -2: 3- and -1:4-, pentamethylene, neopentyl, hexamethylene, decamethylene, diethylene and dipropylene glycols; succinic, glutaric, adipic, azelaic, sebacic, 3-methyladipic, 2: 4-diethyladipic and 2-ethylsuberic acids; phthalic, isophthalic, terephthalic and benzoic acids. Components (b) and (c) may contain 5-50 mole per cent of a monohydric alcohol or monocarboxylic acid respectively-these being excluded from the calculation of the C: O ratio. In examples #-caprolactone, adipic acid and 1: 2-propylene glycol or 1: 3-butylene glycol are heated with tetrabutyl titanate ((a): (c) being 2: 3 or 3: 2 and (b) being in approx. 20% excess). Any free hydroxy groups may be esterified with e.g. acetic acid. The polyesters are used as plasticizers.
Patent GB-700597-A (GB)
Title: Improvements relating to apparatus for sowing seeds
IPC: A01C7/16
Filed: 1952-07-31
Abstract: 700,597. Seed-sowers. SAAT-UND ERNTETECHNIK GES. July 31, 1952 [Sept. 7, 1951 ; Sept. 7, 1951], No. 19454/52. Class 6 (1) A seed-sower comprises a rotary inclined disc-coulter 6 with a pocketed roller 23 secured to it, the roller being surmounted by a hopper 8 and surrounded by a curved surface 24 which is continued across the face of the disc to define therewith a seed-delivery channel, this channel having a steeply-inclined first portion leading to a nearlyhorizontal portion. The apparatus is mounted on a beam 1 having at its front end a draught-claw 2 attachable to a tractor. A further beam 3 carries side plates 10 which support a ground roller 13 for pressing the seeds into the ground after deposition. Covering shares 16, 17 are carried by arms 14, 15 pivoted to the beam 3. The channel 24 is covered by a plate 25 but is extended rearwardly as an open channel 27, 28 terminating in a pair of plates 29, 30 forming a depositing member. A spring-loaded Scraper 19 bears on the roller 13.
Patent GB-219499-A (GB)
Title: An improved automatic fastening for windows
IPC: E05B65/08
Filed: 1923-07-30
Abstract: 219,499. Meredith, G. S. July 30, 1923. Latches, sliding. - In an automatic fastening for sliding sashes in which a spring-pressed bolt 2, sliding in a cylinder 1 in the lower sash 24, engages automatically, as the sashes are closed, with a socket 15 housed in a recess 20 in the upper sash 21 and provided with an inclined guide member 16, a compression nut 9 for the spring 4 being screwed into the outer end of the cylinder 1, the attaching flange 6 is adapted to screw on to the outer end of the cylinder 1 to suit sashes of various thicknesses. A locking set screw 8<A> passes through the flange 6 to engage the external thread on the cylinder 1. A feather 10 on the bolt 2, normally sliding in a keyway in the nut 9, engages, on retraction and rotation of the bolt 2, with a circular seating 11, Fig. 3, in the nut to hold the bolt in the withdrawn position.
Patent GB-870996-A (GB)
Title: Improvements relating to agricultural planting machines
Inventor: POMERANCE ISRAEL
IPC: A01C11/02
Filed: 1956-06-22
Abstract: 870,996. Planting machines. ROBOT AGRICULTURAL MACHINERY CO. Ltd. Sept. 17, 1957 [June 22, 1956], No. 19495/56. Class 6(1). A planting machine comprises gripper members 11 each pivotally mounted by means of a pin 12 in a rotatable carrier member 2 and provided with a pin 13 which engages in a circular cam track 9 in a member 6. The arrangement is such that the grippers are made to pivot about pins 12 due to the movement of the pins in the track 9. By moving the member 6 it is possible to adjust the speed of movement of the grippers as they approach the ground. As shown in Fig. 5 each gripper comprises a bowl-shaped member 14 tapering to one end which is formed with a finger 15 which co-operates with a finger 17 in an arm 16 hinged to the gripper 11 by means of a pin 19. The cam 9 may not be a circle eccentric to the axle 1 but may be of non-circular shape.
Patent GB-716719-A (GB)
Title: Improvements in or relating to spindle mountings
IPC: F16C35/12
Filed: 1951-08-20
Abstract: 716,719. Spindle bearings. REASON, R. E., RAWSTRON, G. O., and KAPELLA, Ltd. Aug. 14, 1952 [Aug. 20, 1951], No. 19563/51. Class 12(1) A rotating spindle C, Fig. 2. mounted within a housing A is suspended from a compression spring F<SP>5</SP> in a gear driven member F, and is driven by an Oldham type coupling comprising a disc F<SP>2</SP> connected through pins and slots both to the spindle and the gear F located within the bearing B<SP>1</SP>. The spindle is mounted on a spherical bearing at its lower end, a deep slot D<SP>2</SP> being cut to ensure that the surface D<SP>1</SP> is not subjected to any strain due to its bolting to the flange C<SP>1</SP>, and at its upper end is mounted on a taper bearing by forming the spindle with a slight taper to cooperate with a non-rotating sleeve J engaging with a ring of balls K mounted in a cage K<SP>1</SP>. The lower end of the sleeve J has slots J<SP>1</SP> in which engage projections L<SP>1</SP> on a sleeve L, this latter sleeve also having slots L<SP>2</SP> engaging pins M<SP>1</SP> projecting from a sleeve M clamped by means of screws M<SP>2</SP> so that its upper end M<SP>3</SP> abuts the sleeve J. The cage K<SP>1</SP> is pressed against the end M<SP>3</SP> by means of a spring-urged disc K<SP>2</SP>. It is stated that the sleeve J will automatically seat itself to ensure the correct thickness of oil film and that any slight error of alignment of the axis of the tapered surface of the spindle with the centre of the spherical bearing at the lower end resulting in such axis not coinciding with the axis of rotation is compensated for by slight movement of the sleeve J within the mounting K. In a modification the upper bearing is also spherical, the lower surface being formed on a vertically adjustable sleeve, and the spindle is supported on tension springs. In a further modification the upper bearing is a sleeve N<SP>1</SP>. Fig. 4, slightly relieved to provide edges N<SP>2</SP>, N<SP>3</SP> against which the spindle C is pressed by means of a spring- urged roller O, any slight lack of alignment being taken up by wear of the soft metal sleeve N<SP>1</SP>.
Patent GB-196033-A (GB)
Abstract: 196,033. Kirk, R. H., and Martinez, H. Jan. 9, 1922. Building-blocks, special shapes of.-The inner and outer blocks for the cavity wall of a bungalow or like building have overlapping extensions i of about half the height of the blocks. The quoin blocks m are thicker than the wall blocks, but only half as deep; the inner blocks are made of breeze concrete, and the base blocks b have sockets into which the uprights d are fitted.
Patent GB-423014-A (GB)
Title: Improvements in or relating to electrically heated steam boilers
IPC: F22B1/30
Filed: 1934-07-03
Abstract: 423,014. Heating water by electricity. MASCARINI, G., 21, Via St. Antonio, Milan, Italy. July 3, 1934, No. 19614. Convention date, July 3, 1933. [Class 39 (iii)] In a boiler comprising electrodes arranged in insulating tanks 1 fed to excess by a circulating pump 17 the tanks are fitted with discharge pipes 24 pivoted to the lower portions of the tanks so that the load may be varied by varying the water level. In a three phase boiler the tanks are supported by insulators 42 on a carriage 27 adapted to slide on rails fixed to the boiler. One electrode in each tank is connected to one of the leads 11, 12, 13 respectively and the remaining electrodes are interconnected by a lead 44 to the carriage 27. The pipes 24 discharge to the bottom of the boiler from which the discharged water is returned by the circulating pump 17 to the nozzles 19. The discharge pipes are separately controlled or are interconnected by a common shaft 22 fitted with a handwheel 23. The control may be automatic to maintain a constant boiler load. In Fig. 5 the regulator 29 controls electromagnetically operated valves 32, 33 on a hydraulic cylinder coupled to the shaft 22. The hydraulic device may be replaced by an electric motor.
Patent GB-1516831-A (GB)
Title: Investment materials and casting moulds made therefrom
IPC: B22C1/18
Filed: 1977-05-10
Abstract: 1516831 Investment composition PRE-VEST Inc 10 May 1977 [24 May 1976] 19614/77 Heading C1H [Also in Division C3] An investment composition for making a casting mould comprises a gypsum binder and a refractory of which at least 15% by weight is pyrophyllite (a hydrous aluminium silicate of the formula Al 2  Si 4  O 10  (OH) 2 ) preferably the pyrophyllite constitutes 55-65% by weight of the total weight of the refractory and the composition preferably comprises 20-40% by weight of gypsum and 60-80% by weight of a refractory. The specific example discloses a composition comprising 30% gypsum, 30% silica and 40% pyrophyllite together with small amounts of sodium citrate and terra alba for set control purposes.
Patent GB-440043-A (GB)
Title: Improvements in or relating to the casting of articles from synthetic resins
IPC: B29C33/40
Filed: 1934-07-04
Abstract: In the production of bodies from synthetic resins the material is cast in moulds of rigid thin non-metallic thermoplastic material other than glass.  The thermoplastic material may be celluloid, and may be shaped by blowing.  The inside of the mould may be coated with a spray of copper or tin, or with glycerine, a paraffin oil, or other metallic or non-metallic substance.  The mould may be made in two or more parts united by an adhesive, solvent or softening agent applied along protruding parts or flanges.  The synthetic resin may be injected or poured in through a tube or hole, gas or vapours escaping through another hole or holes.  The mould containing the resin is placed in a drying chamber and kept at the required temperature until the resin is hardened.  For hollow articles a coated core of any material may be held in position in the mould by pins &c. which are removed before the article finally hardens.  An uncoated core may be used if it is to remain in the finished article.  Thin sheets prepared from cellulose acetate &c. may be used instead of celluloid. According to the Provisional Specification the moulds may be made of thermo-setting material.
Patent GB-820865-A (GB)
Title: Foils consisting of highly polymeric substances pre-treated for the application of hydrophilic colloids
IPC: C08G63/676
Filed: 1956-06-25
Abstract: 820,865. Film materials. AGFA A.G. June 25, 1956 [June 25, 1955], No. 19647/56. Class 140. A film material comprises a film support of a hydrophobic film-forming synthetic resin having a subbing layer coated on the film support, the film-forming agent of the subbing layer consisting essentially of an unsaturated polyester of an aromatic compound with two aliphaticallybonded hydroxy groups and an unsaturated aliphatic dicarboxylic acid. The polyester may also contain additional radicals of saturated aliphatic or aromatic dicarboxylic acids, e.g. malonic, succinic, adipic, sebacic, phthalic and terephthalic acids. The polyesters may be obtained using glycols of the following general formulµ: in which X is a divalent organic radical containing at least one aromatic nucleus, e.g. phenylene, diphenylene, diphenylene methane, diphenylene dialkyl methane, diphenylene oxide, diphenylene sulphone, naphthylene or a radical of formula where R 2  has the same meaning as X, e.g. phenyl, diphenyl or naphthyl; R is an alkylene radical, e.g. ethylene, propylene ; R 1  is a monovalent organic radical containing at least one aromatic nucleus, e.g. aryl or aralkyl radicals such as phenyl, benzyl, naphthyl, diphenyl, diphenyl methane, diphenyl-dimethylmethane. Examples of such glycols are terephthalic acid diglycol ester, hydroquinone - di - (# - hydroxyethyl) ether, 4,4<SP>1</SP>-di-(#-hydroxyethyl<SP>1</SP> diphenyl ether, 4,4<SP>1 </SP>- di - (# - hydroxyethyl) diphenylsulphone ether, glycerol mono-phenyl ether and glycerol mono-diphenyl ether. Suitable aliphatic acids are maleic, fumaric and itaconic acids which can be used in the form of the anhydride or ester, e.g. methyl or ethyl ester. Other aliphatic or aromatic dicarboxylic acids, e.g. malonic, succinic, adipic, sebacic, phthalic and terephthalic acid, may also be concurrently condensed. Suitable film supports are condensation products of terephthalic acid and glycol, polyvinyl chloride or copolymers of vinyl chloride, polycarbonate of di-monohydroxyarylene alkanes produced according to Specification 808,629, [Group IV (a)], condensation product of 4,4<SP>1</SP>-dihydroxydiphenyl dimethyl methane and phosgene produced according to Specification 772,627, [Group IV (a)], and cellulose esters. Specified solvents are chlorinated hydrocarbons, e.g. tetrachloroethane, methylene chloride, dioxane, ketones, e.g. acetone, ethyl acetate, butyl acetate, and other esters, benzene and other hydrocarbons. The subbing layer may be coated with a nitrocellulose layer prior to coating with a gelatine layer and thence with a silver halide emulsion. When a nitrocellulose layer is applied it is desirable to incorporate some nitrocellulose lacquer in the subbing layer.
Patent GB-237930-A (GB)
Title: An improved contact device for preventing aircraft from bursting into flames as a result of a crash
IPC: A62C3/08
Filed: 1925-08-04
Abstract: 237,930. Bechard, E. J. Aug. 4, 1924, [Convention date]. Stop - gear. - For preventing a fire when an aircraft crashes, the machine is fitted with one or more automatically or manually operated contact-making devices, each comprising a metal socket 1 connected to one end of the primary windings of the magnetos A, B, and a sliding rod 2 of insulating material fitted with metal studs 3 connected to the other ends of the magneto windings. The devices are located at the ends of the wings and at the front and tail of an aeroplane, or, in the case of an airship, beneath the gondolas, so that if the machine crashes, the rod 2 of one or more of the devices is driven into its socket 1, and the magneto windings are short-circuited over the studs 3 and socket 1. One of the devices may also be placed near the pilot for manual operation.
Patent GB-984983-A (GB)
Title: Circuit arrangement for an electrical musical instrument
Inventor: HIYOSHI AKIO
IPC: G10H1/057
Filed: 1962-05-22
Abstract: 984,983. Electrophonic musical instruments. NIPPON GAKKI SEIZO KABUSHIKI KAISHA. May 22, 1962, No. 19689/62. Heading G5J. [Also in Divisions H2 and H3] In an electrophonic musical instrument, transistors controlled by key switches, transmit audiofrequencies from individual tone generators to a common output. Attack and decay are controlled by time constant circuits, one such circuit being associated with each transistor. A switch in each time constant circuit enables the rate of decay to be changed. A knee operated lever serves as a common control for the time constant switches. The lever may be linked either mechanically or electrically to a multi-contact switch. Individual transistor circuit, Fig. 2. When a key switch S1 is open, a transistor Q1, operating in a common emitter circuit is reverse biased with the base at 11 volts and the emitter at 6 volts. When switch S1 is closed, the emitter potential rises to 12 volts and the transistor conducts. Attack and decay are governed by a condenser C2 in combination with resistors R1 to R8 and the transistor itself. If switch S2 is closed, this decay period AB, Fig. 3a is short. If switch S2 is open the decay period CDE is longer. Transistor assembly, Fig. 4. A number of tone generators and transistors Q1 feed a common output condenser C1. The decay control switches S2 are operated by a common lever F. Knee operated switch. A pivoted lever 10 operates a spring-biased link 11 and a crank 23 to turn a bar 14 of insulating material carrying common contact 12. By operating the lever 10 the common contact 12 can be brought into engagement with contact wires 13. The beginning of the effective throw of lever 10 can be altered by means of an adjustable cam 18 on the link 11. In an alternative arrangement, the lever 10 may operate a micro-switch 19 controlling a multicontact relay. The contact bar 14, for example, may be turned electromagnetically. There may be free movement of the lever 10 before it engages the cam.
Patent GB-1237025-A (GB)
Title: Improvements in or relating to shell moulding machines
Inventor: COWLAN KENNETH WILLIAM
IPC: B22C23/00
Filed: 1969-04-17
Abstract: 1,237,025. Moulding machines and processes. POLYGRAM CASTING CO. Ltd. 17 April, 1969, No. 19692/69. Heading B3F. A shell moulding machine has an investment bin 36 with a base and at least two opposite side walls (35) extending upwardly from the base and inclined to one another, the inclined sidewalls each having an aperture for receiving a pattern plate, and has means for rotating the bin to and from the positions in which one of the said sidewalls is substantially horizontal. In operation, a pattern plate on a carrier 17 is heated beneath a radiant hood 29 with gas burners 32. The hood is raised (see right of Fig. 1) by a counterweighted 27, parallel linkage 22, 26, 30 operated by a pneumatic motor 25 (Fig. 5). The pattern plate is swung on an arm 15 to engage the apertures in the investment bin 36, while the carrier 17 is locked to the bin 36 by bars 50. The bin 36 and pattern plate are quickly pivoted so that the bin lies under a hood 29 and the pattern plate lies in a horizontal position. When a sufficient thickness of cured sand has been built up on the pattern plate, the bin is returned to its original position and the carrier 17 unlocked from the bin. The carrier once again pivots below the radiant hood which is lowered to complete the curing. Ejector pins (not shown) in the carrier 17 are operated by a heated bolster 55 (Fig. 5) by means of a pneumatic motor 58 through a linkage 59. Another pattern plate is invested at the left hand station of the machine while curing and ejection of the first mould is completed. The bin 36 is provided with a fluidized bed to level the moulding mixture between investment operations. Hydraulic, mechanical or electrical actuation may be used instead of pneumatic circuitry. The operational sequence may be automatically controlled and rate of heating may be controlled in dependence on the pattern plate temperatures.
Patent GB-404321-A (GB)
Title: Improvements in or relating to the manufacture of water-meters
IPC: G01F3/08
Filed: 1932-07-12
Abstract: Part of the working-chamber of a water-meter is made from a non-ferrous alloy which may be a brass or bronze containing a small percentage of chromium or about 1 per cent of manganese.