baber/WOPTO huggingface dataset:
Patent GB-1152547-A (GB)
Title: Improvements in or relating to Portable Power Saws
IPC: F16F3/087
Filed: 1967-11-28
Abstract: 1,152,547. Sawing. ANDREAS STIHL MASCHINENFABRIK. 28 Nov., 1967 [3 Dec., 1966], No. 53983/67. Heading B5L. A portable power saw comprises a rigid connection 10 between handles 8, 9 connected to a motor and motor housing 1 by means of vibration damping bearings 13, 23 arranged one at the front and one at the rear of the motor housing, the rigid connection consisting of a frame arranged above the motor housing and having its edges extending approximately parallel to the edges of the motor housing. The motor has a guide 3 for the bar 5 of a chain saw and at its rear is secured an extension 7 having a forked end carrying a bolt 14 on which are a pair of conically-shaped rubber sleeves 13<SP>1</SP>, 13<SP>11</SP>. A clip 17 embraces the sleeves and is secured to one end of handle 9, the other end of which is secured or integral with the frame 10 which is trapezoidal in shape and of generally U-shaped cross-section. At its other end the frame is secured by a bracket 19 to the handle 8. The frame is also connected by a clip 24 to a pair of rubber sleeves 23<SP>1</SP>, 23<SP>11</SP> on a bolt carried by a bracket on the motor housing. The front handle may be in the form of a stirrup which is secured by its lower end through a vibration damping bearing to the motor housing.
Patent GB-1164999-A (GB)
Title: Improvements relating to Silencing Means for Percussive Pneumatic Tools.
Inventor: BARBER ANTONY DOBSON
IPC: B25D17/14
Filed: 1965-12-20
Abstract: 1,164,999. Percussive tools. HOLMAN BROS. Ltd. 15 Dec., 1966 [20 Dec., 1965], No. 53996/65. Heading B4C. [Also in Division F1] A pneumatic percussive tool such as a rock drill or road breaker, comprises a piston 11 reciprocable in a cylinder 12 and an exhaust silencing means including first and second expansion chambers 20, 21, the compressed air being exhausted during the working stroke into the chambers via a discharge port 15 and a transfer port 25. The expansion chambers are of accurate shape and may be cast integrally with the cylinder or made of sheet metal welded thereto or made as separate units and secured to the cylinder with a suitable seal; instead of metal the chambers may be made from a synthetic plastics material. In operation, compressed air is fed into the cylinder 12, thereby driving the piston units working stroke. As the upper surface of the piston passes the port 15, the air flows into the chamber 20 where it expands and then passes via a groove 23 in the piston and the transfer port 25 into the chamber 21 where the air flows to atmosphere via a pipe 26.
Patent GB-1209649-A (GB)
Title: Device for converting the energy of combustion of an explosive substance into mechanical energy
IPC: F41F1/00
Filed: 1967-11-28
Abstract: 1,209,649. Fastener driving tool. TRANSURVEY HOLDING CO. Inc. 28 Nov., 1967, No. 54049/67. Heading B4C. [Also in Divisions B7 and F3] A nail driver comprises a metal combustion chamber containing an explosive substance and a piston, the initial resistance to displacement of which, on combustion of the explosive substance, is sufficiently high to cause the pressure in the chamber to momentarily substantially exceed the pressure corresponding to the elastic limit of the metal of the chamber, the piston being relatively displaced to reduce the pressure before any appreciable permanent deformation of the chamber occurs. The walls of the chamber may be insulated to reduce losses of thermal energy.
Patent GB-1430853-A (GB)
Title: Activation of substrates for metallisation
IPC: C23C18/30
Filed: 1973-11-22
Abstract: 1430853 Electroless plating DR HESSE & CIE SPEZIALFABRIK FUR GALVANOTECHNIK 22 Nov 1973 [23 Nov 1972] 54242/73 Heading C7F A sensitizing solution (pH 1À5 to 4À5) for electroless plating comprises the reaction product of a salt of Au, Pt, Pd, Rh, Ir, Ru or Os and an excess of a polysaccharide or a derivative thereof having a reactive aldehyde group, e.g. dextrin, tragacanth or soluble starches. The solution may contain a buffer, e.g. boran, gluconates or acetates. In examples a.b.s. resins may be Cu or Ni plated.
Patent GB-1148117-A (GB)
Title: D-homosteroids and process for their manufacture
IPC: C07J63/00
Filed: 1966-12-06
Abstract: 1,148,117. D-Homo-steroids. SCHERING A.G. 6 Dec., 1966 [11 Dec., 1965], No. 54552/66. Heading C2C. Novel compounds of formula (wherein R 1  and R 2  each represents a hydrogen atom or together represent a methylene group, X represents a hydrogen atom, a methyl group, or a fluorine or chlorine atom, and A-B represents: where R 3  and R 4  each represents a hydrogen atom or an acyl group) are prepared from a compound of formula by treatment with a basic catalyst for 17 oxo products or with an acidic catalyst for 17α-oxo products, followed, if desired, by esterification of any free hydroxyl group or saponification of any ester group. Antiandrogenic compositions suitable for oral and parenteral administration comprise a compound of Formula I above and a suitable carrier.
Patent GB-1447045-A (GB)
Title: Servo actuators
IPC: F15B9/09
Filed: 1972-11-25
Abstract: 1447045 Fluid-pressure servomotor systems SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 1 Nov 1973 [25 Nov 1972] 54576/72 Heading G3P In a fluid-pressure servomotor, fluid flows simultaneously into opposite ends of a cylinder 19 and escapes through a pair of control valves 24 operated by the rotor 27 of a torque motor 25 so that movement of the rotor causes a pressure difference in the cylinder 19 and movement of a piston 20. A rod 38 in the piston-rod 21 cooperates with two coils 39, 40 to provide a position feedback signal and to operate an indicator. Alternatively, the piston-rod may be loaded by a spring. In a second embodiment, the control valves regulate the flow from a central port through restrictions at opposite ends of a spring-centred relay valve 32 controlling supply and exhaust to opposite ends of a piston and cylinder connected between ports 34, 35.
Patent GB-1170240-A (GB)
Title: Improvements relating to Tractors.
Inventor: HAMBLIN HENRY JOEL
IPC: B60R21/13
Filed: 1965-12-23
Abstract: 1,170,240. Tractors; driving arrangements. NATIONAL RESEARCH DEVELOPMENT CORP. 13 March, 1967 [23 Dec., 1965], No. 54680/65. Headings B7D and B7H. [Also in Division F2] A tractor frame comprises a pair of arched, tubular members 11 and an inverted U-shaped longitudinal member 31. The members 11 converge towards their rear ends where they are connected to a bearing member 38 in which a shaft is mounted for pivotally supporting the rear axle 13. Inwardly converging and downwardly directed front portions 17 are connected to a housing 20 for hydraulic apparatus of the vehicle. A prime mover 37 is connected to the frame 11 by means of brackets, the drive shaft passing through the member 31. A cabin 25, in which are provided the operation controls, is suspended from the frame 11 by means of units 29, each comprising rubber torsion blocks and hydraulic dampers adjusted to give a free or damped vibration frequency around 1 cycle per second. Lateral stability is given to the cabin by rubber flaps 30 connected to the cabin and to the frame member 31. A transverse member 22 is included at the top of the frame and bearing members 45 are provided for an implement. The front wheels may be independently mounted on suspension arms 21. A power take-off shaft extends through the bearing block 38. A lifting cylinder 48 may be provided for the implement, and a system of rear view mirrors or closed circuit television for rear vision. A three-point lift linkage 40, 41 may be mounted together with a draw bar on the rear axle 13. The tractor wheels are driven through an hydraulic system comprising a fixed capacity, slow speed, radial piston-type motor 35 coupled to each front wheel and a two-speed, radial piston motor 35A whose capacity is variable by virtue of a sliding sleeve in the cylinder as described in Specification 1,029,659 coupled to each rear wheel, the motors being supplied, the front pair in parallel with the rear pair, by a main, swashplate pump 50, a pair of selector valves 66, 67 being provided to allow for rear wheel drive only and a shunt valve 68 to provide for the front motors free wheeling in closed circuit. The main pump 50 is reversible for forward and reverse drive and a booster pump 60 is connected through non-return valves 62 to both sides of the pump 50 so that the make-up fluid is only supplied on the inlet side. Fluid connections are made to a change-over valve 64 from the two sides of pump 50 so that the inlet side of pump 50 (according to its direction of operation) is connected to a reservoir 61 for the booster pump 60 through a pressure relief valve 65 which determines the (low) pressure on the inlet side of pump 50.
Patent GB-1122119-A (GB)
Title: Dielectric fusing of plastic films
IPC: B29C65/04
Filed: 1966-12-07
Abstract: 1,122,119. Laminates. M. H. HECHT. 7 Dec., 1966, No. 54723/66. Heading B5N. A layer or coating of a thermoplastic film not inherently capable of being fused by a direct radio frequency field impressed across it is bonded to a substrate by positioning it in a field of frequency greater than a megacycle/sec. adjacent to a fibrous layer which contains 5 to 8% of water distributed throughout its mass. The method may be used to unite layers of paperboard, paper or leather using a thermoplastic film, or to bond a thermoplastic film to a layer of paper or paperboard which has been covered with a thermoplastic film or coating, or to bond together two thermoplastic films. In this latter case, a layer of a low dielectric loss factor material having a release surface and a fusing point substantially above that of the films is interposed between the films and the fibrous layer. Suitable thermoplastic films are polyethylene, polypropylene, polesters, which may be coated with a polyolefin, or a butadienestyrene copolymer. The paperboard surface contacting the film may be waxed, in which case the wax is melted from the surface and spread through the paperboard. Laminates comprising three layers of paperboard or leather having two intermediate polymeric films may be formed.
Patent GB-1353178-A (GB)
Title: Non-return valves
IPC: F16K15/03
Filed: 1971-11-26
Abstract: 1353178 Valves BRYAN DONKIN CO Ltd 14 Nov 1972 [26 Nov 1971] 55075/71 Heading F2V In a non-return valve a closure disc 20 is pivotally mounted about the axis of a spindle 22 which is mounted transversely of the flow passage but is offset from the axis thereof. The peripheral edge portion of the greater of the two areas of the disc divided by its pivotal axis has a segment 28 of an annular ring secured thereto which segment abuts a surface 16 in the valve closed position. The peripheral edge portion of the smaller of the two areas abuts in valve closed position against a sealing member 18 secured between two discs 10, 12 forming the valve body. In a modification the segment 28 is replaced by a surface of an aerofoiled-sectioned closure member which is pivoted about two pins one of which is hollow and carries a rotary valve-position indicator pin.
Patent GB-1205716-A (GB)
Title: Improvements in or relating to remotely-controlled valves
Inventor: REHHOFF HENNING
IPC: F16K31/163
Filed: 1968-11-20
Abstract: 1,205,716. Valve. H. REHHOFF. 20 Nov., 1968, No. 55142/68. Heading F2V. A remotely-controlled valve has a valve member 8 in the form of a hollow closed body and is displaceable relative to a double-acting piston 6 in its interior, the piston being attached to the end of a pipe 5 terminating within the valve member 8. The pipe 5 is a double pipe 5, 13 with a communication to each face of the piston. The pipe 5 is welded to the annular flange 3. A T-pipe 11 is screwed into the flange 3. In operation, the valve member 8 slides relative to the pipe 5 in a conduit wherein liquid is flowing. Control fluid through branch 12 flows through a nipple 7 to the top side of the piston 6 so as to raise the valve member 8 from its seat 4. Control fluid through the branch 13 flows to the underside of the piston to close the valve. If there is not maintained a suitable pressure within the valve member 8 above the piston 6, the valve acts as a non-return valve.
Patent GB-1172676-A (GB)
Title: Auxiliary Instrument for the Analysis of Spectral Plates
Inventor: BECKER LOTHAR
IPC: G06G7/75
Filed: 1966-12-09
Abstract: 1,172,676. Photo-electric microdensitomer recording apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 9, 1966 [Dec .16, 1965], No.55351/66. Headings G1A and G1J. In order to convert the blackness intensity of a photograph of a spectral line emission into light intensity of the emission, the blackness intensity signal from a microdensitomer as it scans across the photograph is fed to the X system of an electric curve follower which is made to follow a calibration curve drawn with electrically conducting ink, representing blackness values as values of spectral intensity, the Y system of the follower providing a signal representing spectral intensity which is fed to the Y input of an X-Y recorder whose X input receives a signal from the microdensitomer representing its displacement across the photograph and hence the wavelength of the emission. The calibration curve may be logarithmic so that the final recording gives the logarithm of intensity as a function of wavelength or may be linear giving intensity as a function of wavelength. For the latter calibration curve the intensity signal from the curve follower may be integrated by a D.C. motor driving a potentiometer .
Patent GB-1173897-A (GB)
Title: Coated Nuclear Fuel or Breeder Substances and Method of Producing the same
IPC: G21C3/62
Filed: 1966-12-12
Abstract: 1,173,897. Nuclear fuel. GES. FUR KERNENERGIEVERWERTUNG IN SCHIFFBAU UND SCHIFFAHRT m.b.H. 12 Dec., 1966 [14 Dec., 1965; 24 Dec., 1965], No. 55587/66. Heading G6C. [Also in Divisions Cl and C7] A nuclear fuel or breeder substance is coated with a layer containing silicon and carbon by the pyrolytic decomposition at above 1000‹ C. of an organosilane in which each silicon bond not connected to a carbon atom is connected to a hydrogen atom or to another silicon atom; in a preliminary coating stage the temperature may be 300-600‹ C. Particles coated in this way retain fission products when used in a gas cooled high temperature reactor. The organosilane may be applied in solution and may be decomposed in an inert, reducing or oxidizing atmosphere, or in a high vacuum. A first layer of pyrolytic graphite may be applied to absorb fission product gases, and this layer may contain oxides of Si, Ti or Zr. The second layer according to the invention may contain nitrogen, oxygen, or Ti or Zr compounds formed by adding polysilazanes, polysiloxanes, or organic Ti or Zr compounds to the organosilane, oxides, carbides or nitrides of U233, U235, U238, Pu 239, or Th may be coated.
Patent GB-1221389-A (GB)
Title: 2,4-dicyano-6-nitrobenzene derivatives
Inventor: WAGNER KLAUS
IPC: A01N37/48
Filed: 1969-11-13
Abstract: 1,221,389. Dicyanonitrobenzene derivatives. FARBENFABRIKEN BAYER A.G. 13 Nov., 1969 [29 Nov., 1968], No. 55625/69. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula in which X represents -NRR<SP>1</SP> or -OR<SP>11</SP>, where R is a hydrogen atom or an alkyl, hydroxyalkyl, alkoxyalkyl, alkenyl, cycloalkyl, aralkyl or aryl radical, R<SP>1</SP> is a hydrogen atom or an alkyl or alkenyl radical or R, R<SP>1</SP> and the nitrogen atom to which they are attached form a heterocyclic ring and R<SP>11</SP> stands for an alkyl radical. They are prepared by reacting 1-chloro- 2,4-dicyano - 6 - nitrobenzene with HNRR<SP>1</SP> or R<SP>11</SP>OM where M is an alkali metal atom, or by reacting 1 - chloro - 2,4 - dicyanobenzene with HNRR<SP>1</SP> and nitrating the product, or by nitrating a 1-alkoxy-2,4,dicyanobenzene or by reacting a 1 - alkoxy - 2,4 - dicyanobenzene with HNRR<SP>1</SP>. The compounds have herbicidal activity.
Patent GB-1344657-A (GB)
Title: Water-insoluble thermosetting composition of matter and method for  their preparation
IPC: C08F20/58
Filed: 1971-12-01
Abstract: 1344657 Polymers from acrylamides LUBRIZOL CORP 1 Dec 1971 [15 Dec 1970] 55769/71 Heading C3R Water-insoluble thermosetting resins are obtained by heating at a temperature high enough to melt the reaction mixture and for long enough to remove water and other volatile components, a mixture of (A) a substituted acrylamide of formula where each R is hydrogen or a hydrocarbon radical which may have inert substituents, at least one R being hydrogen, each R<SP>1</SP> and R<SP>2</SP> is hydrogen or hydrocarbon which may have inert substituents, and R<SP>3</SP> is hydrogen, halogen or alkyl which may have inert substituents, and (B) at least one of (a) an aldehyde having up to 4 carbon atoms, and (b) a water-soluble material prepared by reacting at a temperature below 100‹ C. such an aldehyde with an acrylamide as defined in (A) above in the presence of an alkali and in a diluent comprising water or an organic solvent, the molar ratio of (B) to (A) being such that at least one mole of aldehyde is available per mole of acrylamide. In examples the acrylamides (A) are diacetone acrylamide and diacetophenone acrylamide and reagents, (B) are formaldehyde acetaldehyde, paraformaldehyde and a product obtained by reacting diacetone acrylamide with paraformaldehyde in water.  Uses.-Moulding powders and laminates.
Patent GB-1366819-A (GB)
Title: Vehicle braking system
IPC: B60T17/22
Filed: 1972-12-04
Abstract: 1366819 Brake warning devices HANOMAGHENSCHEL FAHRZEUGWERKE GmbH 4 Dec 1972 [6 Dec 1971] 55850/72 Heading F2E A warning device for a twin circuit braking system has switches 3, 31 the contacts 13, 13<SP>1</SP> of which are respectively actuated by actuators 4, 4 of each circuit; like terminals a, b, c of the switches being interconnected, terminals a also being connected to the terminal 12 of a vehicle starter switch 1, terminals b being connected to a warning lamp 6, the latter having connections to a terminal 14 of the starter switch and to the relay coil of a starter motor, and terminals C being connected to brake indicating lamps 5. If, for example, the circuit associated with switch 4 fails contact 13 maintains contact between terminals b, c and current then flows from a battery 7 through starter switch 1, lines 18, 9 to contacts a and then to lamps 5 which are thus lit. Lamp 6 will also glow due to the earthed connection through line 16 with coil 2, thereby indicating a failure in one circuit. On starting the vehicle the contact element of switch 1 connects contacts 11, 14 to light only lamp 6. If the latter fails to light this indicates a failure in the circuit or lamp 6.
Patent GB-1210109-A (GB)
Title: Articulated joint
Inventor: BELOV NIKOLAI PAVLOVICH
IPC: F16B7/18
Filed: 1968-11-27
Abstract: 1,210,109. Bolting. PODMOSKOVNY GOSUDARSTVENNY PROEKTNO - KONSTRUKTORSKY I EXPERIMENTALNY INSTITUT GORNOGO MASHINOSTROENIA MOSBASSGIPROGORMASH. 27 Nov., 1968, No. 56231/68. Heading F2H. [Also in Division B8] A threaded coupling for sections of a mine face conveyer (see Division B8) comprises a member 2 retained in one section by a boss 6 and a member 3 having a partially spherical head 10 which seats in a washer 9 freely fitted to the shank of the member to bear against the other section. The clearance 12 between the coupling and the said other section and the spherical surfaces 13, 14 enable the coupling to accommodate relative movement between the conveyer sections and furthermore ensures that the members are subjected only to tensile stresses. The minimum diameter of the member 3 is designed to withstand normal working loads but to break under overload and thereby protect other parts of the coupling and the conveyer. A tie bar (not shown) may be inserted in a hole 8 and a spanner &c. engaged with a shaped boss 11 for the assembly &c. of the coupling.
Patent GB-1333737-A (GB)
Title: Pulse regenerator circuits for pulse-code modulation systems
Inventor: POSPISCHIL R
IPC: H04J7/02
Filed: 1970-11-30
Abstract: 1333737 PCM synchronization SIEMENS AG 30 Nov 1970 [10 Dec 1969 29 Jan 1970] 56826/70 Heading H3A A pulse regenerator circuit for a PCM system comprises a regenerator R to which the output of a local pulse generator G is applied via a pulse shaper P, the output of the generator G being further applied directly or via the pulse shaper P in the same or separate embodiments to a first input of a phase discriminator D to whose second input is applied an incoming PCM signal, the output of the discriminator D being applied via a timing jitter reduction arrangement, e.g. a high pass filter HP, and a low pass filter TP to a frequency control circuit of the generator G. The low pass filter TP (Fig. 3, not shown) may comprise a resistor in a series arm and a capacitor in series with a switch S 2  in an input-end shunt arm. The switch S 2  may be controlled to be closed by the output of a further phase discriminator PV when there is phase equality between the incoming PCM signal and a signal derived from the generator G output. Fig. 7 (not shown) indicates a transistor circuit suitable for the combination of the discriminator PV and the switch S 2 .
Patent GB-1339018-A (GB)
Title: Continuously changeable surface
IPC: F16G13/02
Filed: 1970-12-02
Abstract: 1339018 Chucks; tube expanders G N A PERSSON K J-E ERIKSSON S A KARLSSON and J L BERGHOLM 2 Dec 1970 [2 Dec 1969] 57370/70 Headings B3B and B3J [Also in Divisions B7 B8 E1 and F2] A flexible surface, shown in plan in Fig. 1a and elevation in Fig. 1c, includes at least two rows of surface elements 1, each surface element having two pivot pins 2 for connecting the element to two different surface elements in one or more adjacent rows and the surface elements in the same row being interconnected by motion transfer means 3, 4. The motion transfer means may be as shown or consist of meshing tooth segments or pins of flexible material. Flexible surfaces composed of flexible elements 101, Fig. 11a, may be incorporated in a chuck for gripping rods or tubes. The outermost surface elements are provided with guide arms 105 having rollers which engage in grooves 107  in the chuck ring and in grooves 109 in the chuck housing. Relative rotation of the ring and housing causes movement of the flexible surface towards the dotted position. An internally expanding modification of this arrangement may be used as a tube expander.
Patent GB-1300487-A (GB)
Title: Improvements relating to the coating of articles by cathode sputtering
IPC: C23C14/28
Filed: 1970-12-03
Abstract: 1300487 Coating with metal by spattering BEKAERT SA NV 3 Dec 1970 [3 Dec 1969] 57499/70 Heading C7F A wire 1 of e.g. steel is coated with e.g. brass or Sn by cathode sputtering in a cathode tube 2 which has a screen 3 interposed between the wire and cathode tube. The screen is such that, in operation, when at a positive potential with respect to the cathode, particles of the coating material pass through the screen but electrically charged particles are trapped by the screen. In one embodiment, the apparatus is located in a chamber with an argon pressure of 10<SP>-3</SP> Torr and a potential of 1 to 5kV applied between the screen (as an anode) 3 and cathode 2. A glow discharge plasma is formed confined to the space between screen and cathode. Ion-bombarded particles pass from the cathode 2 through the screen 3 on to the wire 1. The plasma can be energized by electron beams obtained from tungsten filaments 5 at each end of the cathode 2. So that electrons emitted from one end of the cathode do not reach the opposing tungsten filaments, the filaments may be arranged to the side of the axes of the cathode tube, and the electron beams produced bent by electrostatic shields . The plasma can be intensified by surrounding the cathode tube 2 by a solenoid and the apparatus can be arranged so that the wire 1 passes through the cathode tube several times.