baber/WOPTO huggingface dataset:
Patent GB-1148290-A (GB)
Title: Improvements in or relating to gear train assemblies
Inventor: MOORE GRAHAM ERIC
IPC: F16H57/02
Filed: 1966-05-23
Abstract: 1,148,290. Toothed gearing. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 27 April, 1967 [23 May, 1966], No. 50498/68. Divided out of 1,141,894. Heading F2Q. In a gear train comprising driving and driven gear-wheel units 4, 5 and two idler gear-wheel units 12 one on each side of a line joining the axes of rotation of the driving and driven units and each radially movable relative to the driving and/or driven unit, each gear-wheel unit comprising a gear-wheel 8, 10, 13 and at least one coaxial cylindrical spacer 9, 11, 14, the spacer 14 of one or both idler units being in rolling contact with those of the driving and driven units when the gear teeth are in correct mesh, when an idler 12 correctly meshes the driving and driven units for drive in one direction of rotation, the relative disposition of the units concerned is such that the resultant of the forces applied to the idler teeth acts on a line passing between the axes of rotation of the units 4, 5 to hold the idler teeth constantly in correct mesh with those of the driving and driven gears, movement of the teeth of each idler out of correct mesh with the driving gear teeth being prevented or restricted when said force does not act along said line. The resultant force holds the idler in correct mesh when the angle between a line through the axes of rotation of the units 4, 12 and a line through the axes of rotation of the units 5, 12 is greater than twice the pressure angle of the meshing gear teeth. As shown the idlers 12 are carried on arms 16, 17 of a bell crank 15 rotatably supported on the shaft 6 of the driving gear-wheel unit 4. One idler is effective for each direction of rotation a friction coupling between the crank 15 and the shaft 6 assisting in change-over when the direction is reversed. In Fig. 4 (not shown), two idlers (29, 30) are interconnected by a spring (33) which urges them into mesh with the driving and driven gears (23, 27) and is strong enough to prevent the idler which is urged out of mesh by the resultant of its tooth forces from being moved out of mesh. The spacer diameters equal the pitch circle diameters of their respective gears. The distance between the driving and driven unit axes of rotation is variable when running (Fig. 2) or when stationary (Fig. 4). Each gear-wheel may have two spacers, one on either side, or at least one gear-wheel unit may comprise two spaced apart gears with a spacer between them.
Patent GB-1284613-A (GB)
Title: Devices for breaking scribed slices material
Inventor: PICK ERIC GERHART
IPC: H01L21/00
Filed: 1969-10-15
Abstract: 1284613 Splitting TEXAS INSTRUMENTS Inc 15 Oct 1969 [30 Dec 1968] 50707/69 Heading B5E A device for breaking slices of semi-conductor material along scribed lines 12, 13, Fig. 5, comprises a support member 58 for a scribed slice, a force applying member 19 for applying a predetermined force to the upper surface of the slice along a ferrite zone of abutment, means for sensing the applied force and generating a signal proportional thereto and means for moving the support member in a direction perpendicular to the lines and the zone of abutment so as to break the slice along the lines. The slice, which may be 1 inch diameter and 0À007 inch thick has a plurality of bars 11 between the scribe lines, each bar being a semi-conductor component, such as a transistor or integrated circuit. The force applying element 19 consists of a knurled or rubber covered roller 19 rotatably mounted in blocks 21, 22 vertically slidable on posts 48, 49 upstanding from pedestals 16, 17 on a base. Springs 46, 47 act to urge the blocks, and hence the roller towards the base to a position determined by micrometers 23, 24 abutting anvils 42a on the pedestals. A carriage 64 is slidable along a rail 71 disposed between the pedestals and perpendicular to the axis of the roller. A cylindrical housing 63 extends upwardly from the carriage and receives the support member 58 for the slice. The member can be indexed through 90 degrees to position first the scribe lines 12 perpendicular to the axis of the roller and then the scribe lines 13 perpendicular to the axis. The upper surface of the support member is of elastomeric material and incorporates strain gauges which are connected in a bridge circuit and to a circuit which can be adjusted to produce maximum and minimum voltages associated with indicator lamps. With a slice placed on the support member, the member is adjusted so that the first scribe lines are perpendicular to the axis of the roller and the carriage is moved along the rail to feed the slice beneath the roller to break the slice along the scribe lines. Too small or too great a form is indicated by illumination of one of the lamps. Thereafter, the support member is indexed through 90 degrees for breaking of the slice along the second set of scribe lines. The slice is held on the support member by suction applied through holes 104. The slices to be broken may be positioned between sheets of lint free paper or other pliable material and moistened by methanol and water.
Patent GB-1479515-A (GB)
Title: Baby food formulation
IPC: A23L21/12
Filed: 1974-11-22
Abstract: 1479515 Modified tapioca starch GERBER PRODUCTS CO 22 Nov 1974 50740174 Heading A2B A food (particularly baby food) contains an ungelatinised tapioca starch which has been heated to its gelatinisation temperature but with insufficient moisture to produce gelatinisation. Preferably the starch, having a moisture content of 15-35%, is heated at 70-130‹C for 1 to 72 hours and then added at a rate of 5-55 pounds of starch to 100 gallons of the final food formulation. Up to 25% of the tapioca starch may be replaced with one or more unmodified starches.
Patent GB-1021750-A (GB)
Title: Improvements in dustpan and brush devices
Inventor: RESSLER LLOYD
IPC: A47L13/52
Filed: 1963-12-23
Abstract: 1,021,750. Dustpans; brushes. JUDGE INTERNATIONAL Ltd., and L. RESSLER. Nov. 25, 1964 [Dec. 24, 1963], No. 50812/63. Headings A4F and A4K. A dustpan and brush device comprises a pan 1 open at one end and closed at the other, and a brush 11 which is so shaped that it can fit closely into and thereby close the open end of the container with the brush extending into the container. The open end of the dustpan with flat edges 6, 7, 8 against which a shoulder formed on the brush can abut.
Patent GB-1527309-A (GB)
Title: Dual power brake apparatus
IPC: B60T13/565
Filed: 1976-12-08
Abstract: 1527309 Pneumatic servomotor-hydraulic servomotor brake apparatus BENDIX CORP 8 Dec 1976 [22 Dec 1975] 51247/76 Heading F2F Dual power brake apparatus comprises a pneumatic vacuum suspended servomotor 12 having a housing 20, 22 with a pressure differential responsive wall means 26 therein, the wall means 26 including a hub 40 with an axial bore 42, the apparatus also comprising an hydraulic servomotor 14 having a housing 56 inside which is mounted an hydraulic pressure differential responsive piston means 64; the piston means 64 comprises a cylindrical end portion 62 penetrating the axial bore 42; the portion 62 has an oval groove 80 adjacent the extremity 68 thereof and the axial bore 42 has first and second diametrically opposed recesses 54, 58, clips 70, 82 being disposed in the groove and having respective tabs 72, 84 maintained in the respective recesses 54, 58 to fasten the hub 40 and the piston means 64 against rotational movement of the piston means 64. Limited axial movement is allowedthe recesses 54, 58 are wider than the tabs 72, 84.
Patent GB-1314676-A (GB)
Title: Composite materials
IPC: B29C70/26
Filed: 1969-10-22
Abstract: 1314676 Making reinforced metal ECOLE NATIONALE SUPERIEURE DES MINES DE PARIS and SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEUR'S D'AVIATION 22 Oct 1969 [29 Oct 1968] 51696/69 Heading B3A [Also in Division E1] A composite material comprises a matrix of, e.g., aluminium or plastics and a film reinforcing material, of, e.g., boron, silicon carbide, boron carbide, boron nitride, silicon nitride, aluminium nitride, titanium boride or graphite, which is harder than the matrix material; and has a thickness less than one mm. and a geometric configuration which is formed by repetition of a basic geometric shape, at least one dimension of which is between 1/10 and 10 times the thickness of the film. The film may be formed on a substrate and then removed or it may be used attached to the substrate, in which case several coated substrates are interconnected by pressing or hot rolling.
Patent GB-1126593-A (GB)
Title: Improvements in windscreen wipers
Inventor: CHARLTON ARTHUR THOMAS
IPC: B60S1/42
Filed: 1964-12-24
Abstract: 1,126,593. Windscreen wipers. ANADD HOLDINGS Ltd. 16 Dec., 1965 [24 Dec., 1964], No. 52509/64. Heading A4F. A connector by which a bridge 9 supporting a wiper blade is attached to a wiper arm 11 having a generally flat end portion provided with a projection 40 and one or more marginal notches (35) (Figs. 1 and 2, not shown) comprises a channelshaped body part 20 and a leaf spring 29 which is so provided with detents (34) (Fig. 2, not shown) that when the end portion of the arm is engaged in the connector, the detents (34) of the spring 29 engage with the notches on the arm and the projection 40 engages an aperture or slot 42 in the body part 20. The connector, which is provided with fingers 33, 37 to limit movement of the spring 29, is provided with an apertured extension which passes through a transverse slot 23 in the bridge 9, the connector being pivotally secured to the bridge 9 by arranging shoulders of the extension to bear on the top side of the bridge 9 and by fitting a retaining spring 27 in the aperture of the extension at the bottom side of the bridge 9. An additional leaf spring may also be provided in the connector.
Patent GB-1240473-A (GB)
Title: Improvements in linear induction motors
Inventor: HOLMES JAMES STEPHEN
IPC: H02K41/025
Filed: 1967-11-23
Abstract: 1,240,473. Linear motors. ROTAX Ltd. 8 Nov., 1968 [23 Nov., 1967], No. 53394/67. Heading H2A. A linear induction motor includes a shaft 14 axially movable in a bore formed in a stator comprising a stack 10 of axially extending laminations formed with axially spaced transverse openings containing annular coils 18 surrounding the bore. The linear motor shown comprises nine coils 18 located in openings in a rectangular, axially laminated, stator body 10, each coil comprising a winding 19a, Figs. 7, 8 (both not shown) wound round and secured by insulating tape 20 to an insulating bobbin (19), and additional members 33 of magnetic material located between the axially spaced portions of the coils which protrude outside the stator body. The shaft 14 comprises a circular or polygonal, solid or stranded, steel rod which is sprayed or plated with copper or aluminium and finished with hard chrome, or is alternatively provided with a tightly fitting sheath of copper or aluminium. The motor is suitable for single or three-phase operation and the bore is counterbored at each'end of the stator body to receive P.T.F.E. bearings for the shaft. The stator is enclosed by two cover-plates 30 secured to each other and to a base-plate 31 by bolts 32 passing through the body 10. Alternatively the protruding parts of the coils may be enclosed in plastics material covers. A thermostat 29, Fig. 2 (not shown) placed between two of the coils may be arranged to switch the motor off in the event of overheating of the coils. In a modification (not shown) the stator comprises a plurality of axially laminated bodies arranged end to end and each having at least one opening containing a coil.
Patent GB-1276549-A (GB)
Title: A closed loop control system for automatic control of transducers
IPC: G06K7/10
Filed: 1969-11-04
Abstract: 1276549 Photo-electric detection AUTOMATA CORP 4 Nov 1969 [6 Feb 1969] 53997/69 Heading G1A In an arrangement for controlling the sensitivity of a photo-cell sensing system in which a pulse is developed in response to the presence of the object being sensed at the same time as the photo-cell is exposed to a reference state of illumination, a control circuit is enabled by the pulse to establish and maintain a reference value developed from the reference state and values sensed by the photo-cell in a succeeding sensing interval are influenced by the reference value so that undesired variations in the photo-cell output are corrected for. The system is described in connection with an arrangement in which a card bearing marks applied in answer to questions are compared with the marks on a master and the resulting score is printed on the card. The "presence" pulse may be developed by the leading edge of a card or by timing marks printed on the card. The cards may have a number of columns and a corresponding number of sensing systems and the surface of the card may be used as the reference state of illumination. The results are stored in shift registers. In the transistor control circuit, Fig.4. The enabling pulse on line 61 after inversion by transistor 100 renders transistors 78, 80, 82 conductive whereby point 76 is clamped to ground and condenser 90 is charged to the reference value according to light incident on photo-cell 72. Subsequent changes of current through transistor 96 resulting from changes of photo-cell conductance during sensing provide a true output to the shift register, the condenser 90 maintaining the reference value at point 83.
Patent GB-1356698-A (GB)
Title: Harvesting and ensilage cutting apparatus
IPC: A01F29/00
Filed: 1971-11-22
Abstract: 1356698 Harvester P W ZWEEGERS 22 Nov 1971 [23 Nov 1970 3 March 1971 7 Sept 1971] 54169/71 Heading A1F [Also in Division A4] A harvesting and ensilage cutting apparatus for raw crops such as maize has a stalk cutting means comprising a series of teeth 33 Fig. 5 (not shown) distributed around the lower edges of a pair of feed rolls 24, 25 and these teeth cooperate in a shear cut with a stationary knife 35. The feed rolls 24, 25 are rotatably mounted about vertical shafts 20, 21 respectively which are driven via a series of shafts and gears by shaft 4. This latter shaft 4 is driven by a belt 3 attached to a power take-off shaft of a tractor 2. A chopper rotor 5, which carries blades 10 and is in a housing 6, is also driven by shaft 4. The cut stalks are fed by the feed rolls through an inlet opening 12 of the chopper housing where they are chopped into pieces by the shearing action of the chopper blades against a stationary knife 11 and the pieces are blown out of the chopper housing into a discharge stack 14. Guide plates 44, 45 (not shown), fork 49, tines 43 and guide arms 40, 41 ensure that the stalks are fed into the nip between the pair of feed rolls. The guide arms may have a closed circular section Fig. 1 or they may have a channel section Fig. 6. Within the channel sections are mounted tines which are supported on rods 57. Other embodiments include movable tines either with tines radially fixed on hubs which rotate about vertical axes and with the hubs arranged along the length of the two guides Fig. 10 (not shown), or tines protrude optwardly from endless belts attached to the guides. The plurality of ribs 29 on the feed rolls may be rigid or retractable in the radial direction, the latter being designed to accommodate stalks of varying thickness. The knife 11 may be mounted so as to be readily accessible for replacement purposes.
Patent GB-1171147-A (GB)
Title: Improvements in Electrical Components
IPC: H01C1/02
Filed: 1966-12-08
Abstract: 1,171,147. Resistors. ROBERT BOSCH G.m.b.H. 8 Dec., 1966 [9 Dec., 1965], No. 54895/66. Heading H1S. A winding of resistance wire on a coil former 13 is arranged in a dish-shaped recess 12 in a thin sheet metal plate 11, the recess being closed by a flat sheet metal cover 14 welded to the plate in order to protect the resistor. Insulating plates 19, 19<SP>1</SP> are located between the coil former 13 and the metal plate 11 and the former and cover 14. Holes are provided in plate 11 for the terminal leads 16, at least one lead passing through both insulating plates and coil former to fix it firmly in position, the apertures having nipple-shaped embossings 17 containing a filler compound 18 to surround the leads. Inside the housing the leads are guided and mounted by oblong recesses or ribs (20, Fig. 3, not shown) in the cover 14. For small resistors having thin wire terminal leads these recesses or ribs may be omitted.
Patent GB-1197900-A (GB)
Title: Louvres for Ventilation
IPC: F24F13/08
Filed: 1967-12-04
Abstract: 1,197,900. Ventilators. SARGENTS INSULATIONS Ltd. 17 Feb., 1969 [4 Dec., 1967], No. 55065/67. Heading F4V. In a louvre mounted in a wall opening, each slat 2 supports on its under surface sound attenuating material. In the form shown, a perforated or expanded metal sheet 3 supports a layer of mineral fibre wool. Another arrangement includes slabs of polyurethane foam or a thin sheet supported by each corresponding slat and spaced therefrom. The louvre is made of galvanized sheet steel, aluminium or plastics. Two or more such louvres may be connected side by side or one above another by clipping strips which co-operate with flanges on end plates 1. An insect screen may be provided. Each slat may be rounded in crosssection.
Patent GB-1522140-A (GB)
Title: Syn-7-(2-hydroxyiminoacetamido)-3-pyridiniummethyl cephalosporins methods for their preparation and compositions containing them
IPC: C07D501/04
Filed: 1974-12-20
Abstract: Compounds with antibiotic activity and the formula I <IMAGE> in which the symbols B, R<1>, R<2> and R<3> have the meaning stated in Claim 1, are prepared in the form of the syn isomer or a mixture of syn isomer and anti isomer, where the content of the syn isomer is at least 90%, by reacting a corresponding ceph-3-em-4-carboxylic acid which is substituted in position 3 by a group -CH2X where X is a substituent which can be replaced by the pyridine residue, where appropriate with intermediate protection of the 4-carboxyl group, with an R<3>-substituted pyridine and, if the precursor has an R<1>COCONH group in position 7, converting the resulting compound into the corresponding ceph-3-em compound I by reaction with a hydroxylamine R<2>ONH2. Resulting compounds I in which B is &rdurule& S->O can subsequently be reduced to the corresponding, preferred, compounds in which B is  &rdurule& S. In another process, the resulting carboxylic acids (I) are esterified. The compounds are distinguished by an antibiotic activity with a broad spectrum of action, especially by a high activity against Gram-negative microorganisms including those which produce  beta -lactamases, and furthermore have a high stability to  beta -lactamases produced by some Gram-negative organisms, and to esterases.
Patent GB-1375977-A (GB)
Title: Suturing member for an implantable prosthetic device and method  of making same
IPC: A61F2/24
Filed: 1971-11-29
Abstract: 1375977 Heart valve suturing members MEDICAL INC 29 Nov 1971 55227/71 Heading A5R [Also in Division F2] A suturing member 18 for connecting a heart valve 15 to living tissue, comprises a hollow cover 32 of porous material enclosing and bonded to a cured core 34 of plastics material. The heart valve 15 consists of an annular base 16 having a groove 17 and supporting a cage (28), Fig. 2, (not shown) for a valve element (19) which closes an opening between a central member (24) and the base 16. The cover 32 is tied in the groove 17 by plastics or metal cords 33. A roll of uncured plastics material 34 is placed around the cover 32 whose free ends are stitched around the core material 34. The heart valve 15 is then placed in a mould (38), Fig. 7, (not shown) and heated to cure the core material 34, bond it to the cover 32 and shape it to form a sewing ring 37. Alternatively, a tubular envelope (44), Fig. 10, (not shown) is placed in the groove 17 and core material (46) is injected into the envelope (44) which is then placed in a mould (48) to cure, bond and shape the core material (46). In alternative embodiments, inserts of metal or plastics of various shapes can be partly or wholly embedded in the core. Various suitable materials for the cover and the core are listed.
Patent GB-1127620-A (GB)
Title: Pit props
IPC: E21D15/44
Filed: 1965-12-31
Abstract: 1,127,620. Hydraulic pit props with friction lock. K. GERLACH & H. GERLACH. 31 Dec., 1965 [31 Dec., 1964], No. 55353/65. Heading E1E. In a hydraulic pit prop having a friction clamp locking device 3 3  3', the plunger 2 is made up from two rolled sections which are welded to-gether and are provided with an inner or outer surface of oval or elliptical cross-section tapering in a direction away from the mine roof cap. The plunger slides about a guide member 4 having an inlet 6 for a pressure hose, movement of the plunger being limited in one direction by pegs 12 engaging the underside of the member 3.
Patent GB-1385578-A (GB)
Title: 5- 3-iodopropargyloxy pyrimidines and a method of preparing same
IPC: C07D239/38
Filed: 1972-11-30
Abstract: 1385578 lodopropargyloxy - pyrimidines SPOFA UNITED PHARMACEUTICAL WORKS 30 Nov 1972 [10 Dec 1971 15 Dec 1971] 55401/72 Heading C2C Novel compounds of the Formula (I) wherein R is H, alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl or benzylthio, may be obtained by reacting a 5-hydroxy-pyrimidine of the Formula (II) with a propargyl halide, and iodinating the product in the 3-position of the propargyl chain, e.g. using elemental iodine in an alcohol medium and in the presence of an aqueous alkali metal hydroxide solution. Preparation of intermediates is described as follows: 2-mercapto-4-hydroxy-5-methoxy-pyrimidine is reacted with diethyl sulphate to give 2 - ethylthio - 4 - hydroxy - 5 - methoxypyrimidine which is reacted with POCl 3  to give 2 - ethylthio - 4 - chloro - 5 - methoxy - pyrimidine then ammonia and zinc dust to give 2- ethylthio - 5 - methoxy - pyrimidine which is hydrolysed to 2 - ethylthio - 5 - hydroxypyrimidine. The corresponding propylthio compounds are similarly obtained. The compounds of Formula (I) have antimycotic activity covering pathogenic as well as saprophytic lower fungi and may be formulated with diluents for peroral or topical application.