baber/WOPTO huggingface dataset:
Patent GB-1302239-A (GB)
IPC: H04L25/22
Filed: 1970-10-19
Abstract: 1302239 Transistor integrator circuits HONEYWELL INFORMATION SYSTEMS Inc 19 Oct 1970 [2 Dec 1969] 49506/70 Heading H3T An integrator circuit comprises a first transistor 12 having a collector resistor 14 and first and second diode means 16 and 17-19 connected between the collector and emitter of the transistor 12, a resistor 28 connected between the junction of the diode means and the base of a second transistor 22, a resistor 30 connected between the base of transistor 22 and reference potential point to which the emitter electrodes of the transistors are connected, a collector resistor (32, Fig. 1, not shown) or a constant current source 64 and a capacitor 36 connected between the collector and base of the transistor 22, the input being to the base of the transistor 12 and the output being from the collector of the transistor 22. An input at 50 above a certain value turns on transistors 60, 62, and 12 and makes diodes 16-19 non-conductive. Miller integrator transistor 22 is conductive and capacitor 36 charges at a constant rate via resistor 30 and the constant current source 64 to produce a positive going slope voltage at the out-put of transistor 22 until transistor 22 becomes non-conductive. As the resistor 30, capacitor 36 and emitter-base voltage of transistor 22 are all independent of the potentials from sources 20, 98 over a predetermined range the slope of the output voltage is constant. Output emitter follower transistors 72 and 74 are conductive and follow the slope at output 96. Transistor 73 and diode 80 are also conductive so as to bias off transistor 75. When the input voltage at 50 falls below the certain value transistors 60, 62 and 12 turn off and diodes 16-19 are conductive. A regulated signal at B causes a current to flow through resistor 28 and the collector voltage of transistor 22 begins to fall at a constant rate determined by the resistors 28 and 30 and capacitor 36. Transistor 22 is conductive and as before the falling voltage slope is independent of the supply source variation. Emitter followers 72, 73 provides a potential to reverse bias diode 80 and allow transistor 75 to conduct so as to provide an output signal at 96 which follows the fall slope at the base of transistor 72. Diode 80 provides an offset voltage that biases transistors 74 and 75 to reduce distortion of the output signals during the rise and fall slopes. Resistors 88-90 limit the output current in case of accidental connection of the output terminal 96 to an undesirable potential. The transistors 66-69 operate as current sinks. The single pulse to bipolar pulse circuit shown in Fig. 3 may be in integrated circuit form and the components are selected to have similar temperature coefficients so as to provide equal rise and fall slopes during temperature changes. The forward voltages across diodes 17-19 and across the emitter base of 22 vary so as to balance temperature effects. Transistors 62, 64, 65 and 75 may be integrated lateral transistors.
Patent GB-1376946-A (GB)
Title: Tempered glass sheet
IPC: E04F13/14
Filed: 1971-10-26
Abstract: 1376946 Basins BOUSSOIS SOUCHON NEUVESEL 26 Oct 1971 [5 Nov 1970] 49567/71 Heading A4N [Also in Divisions Cl El and Fl] A shaped glass sheet 1c with a parabolic or spherical section and edge portion 33 may be used as a wash-basin, a waste orifice 32 and overflow outlet 34 being provided in the curved part and a tap unit 35 secured to the flat edge 33 which may be extended at 36 to form a small table or a draining board. Alternatively, the basin may be mounted on a pedestal. The basin may be enamelled.
Patent GB-1312889-A (GB)
Title: Ring spinning and twisting machines
IPC: D01H9/14
Filed: 1971-10-26
Abstract: 1312889 Ring rail drives NAZIONALE COGNE SpA 26 Oct 1971 [26 Oct 1970 28 July 1971] 49721/71 Heading D1D In a ring spinning frame the ring rail is normally reciprocally driven by a heart cam 19 interconnected with the drive to the feed rollers 8, but by disengaging clutch 7, 7a and engaging clutch 9, 9a may be driven by the epicyclic gears 25 to traverse the bobbin once and hence bind a constant yarn length thereon. Reciprocal drive is transmitted from cam 19 to the gear 17 and hence via the epicyclic train 25 to the drum 24. When clutch 9, 9a is engaged shaft 30 directly drives drum 24. Drum 24 is connected to ring rail 2 by cables 18a, 18b. The clutches are actuated by a microswitch on completion of a package on the bobbin 1.
Patent GB-1076150-A (GB)
Title: Apparatus for making screws and the like
IPC: B23G9/00
Filed: 1964-08-27
Abstract: 1,076,150. Screw-making. ILLINOIS TOOL WORKS Inc. Aug. 27, 1964 [Oct. 14, 1963], No. 49810/66. Divided out of 1,076,149. Headings B3B, B3D and B3K. A machine for making screws &c. comprises a turret for holding blanks in tubular pockets and a plurality of reciprocable plungers disposed axially or radially of the turret and aligned with the pockets and actuated in time with rotation of the turret. The machine is as described in Specification 1,076,149.
Patent GB-1171137-A (GB)
Title: Improvements in or relating to Transportable Hoist Devices
IPC: B66F15/00
Filed: 1966-11-09
Abstract: 1,171,137. Builders' hoists. TORNBORG & LUNDBERG A.B. 9 Nov., 1966 [10 Nov., 1965], No. 50118/66. Heading B8H. A hoist assembly comprises a mast 1 and base frame 16 which are pivoted at 17 to a further base frame 15 and which are provided with an adjustable prop device 9 for controlling raising and lowering of the mast from and to the horizontal transport position in which the hoist assembly is supported on wheels 20. The prop device 9 consists of an arm 9a, pivoted to the mast at 12, and an arm 9b, pivoted at 13 to the arm 9a and provided with a roller 14, the arms 9a, 9b normally being supported in the position shown by stops 1c, 9c. The hoist cable 3 passes from a winch drum 4 around a pulley 5 on the mast, a block 6 on the hoist cage 2, a further pulley at the top of the mast and a pulley 7 at the base of the mast and a pulley 8 on the arm 9b. In operation, an adjustable prop 18 is secured to the cage 2 such that the cage is slightly above its lowermost position when the lower end of the prop engages the ground. The hoist cable 3 is then paid out whereby the weight of the cage causes the mast to tilt about the pivot 17 until the roller 14 engages a track 15a on the base frame 15, Fig. 2b (not shown). Thereafter, further paying out of the cable 3 allows the roller 14 to roll along the track 15, the prop device 9 first turning about the pivot 12 until the arm 9a engages the mast and then the arm 9b turning about the pivot 13, the mast thereby being lowered until the wheels 20 engage the ground. In a modification, Fig. 3 (not shown), the arms 9a, 9b are replaced by a single arm pivoted to the cage side of the mast. In a further modification, Fig. 4 (not shown), the prop 18 is omitted and a further tilting device is provided on the base frame 16 to cause the initial tilting of the mast. In a further modification (not shown), movement of the prop is effected by means of a driven gear-wheel meshing with a rack.
Patent GB-1245009-A (GB)
Title: Method and apparatus for joining materials
IPC: B29C65/74
Filed: 1968-10-24
Abstract: 1,245,009. Seaming non-metallic sheet material. CAVITRON CORP. 24 Oct., 1968 [26 Oct., 1967], No. 50463/68. Heading B5K. Two sheet material elements W 1 , W 2  at least one of which contains thermoplastic material, are joined by applying ultrasonic vibrations along a line of finite width by a blade or tool 10 to the elements W 1 , W 2  held against the raised surface of a pattern defining means 12 so that the ultrasonic vibrations are perpendicular to the raised surface and causing relative movement between the means 12 and the ultrasonic vibrations in a straight-line path transverse to the line of application of the vibrations. In one embodiment, Figs. 1 and 2, for continuously manufacturing shirt cuffs, two webs W 1 , W 2 , which may be fabrics made of or containing thermoplastic fibres, e.g. a polyestercotton fibre mixture, are fed from rolls 18, 20 over anvils 12 straddling a pair of chains forming a conveyer 22, the upper run of which passes over a fixed support 24. Each anvil 12 comprises a plate 12a formed with a flange 12b generally rectangular except for rounded edges to define the cuff border and a boss 12c to form a buttonhole reinforcement. An ultrasonic welding tool 10 comprises an elongate head 13 having a slightly tapered working tip 13a and vibrated by transducers 14 coupled thereto by shafts 16. Preferably, the axis of the flange 12b is slightly skewed on the plate 12a so as to be inclined to the elongate tip 13a. After welding, the cuffs are individually cut by a head 30 comprising a blade coacting with the outside edge of the flange 12b and are deposited in a receptacle. A vibrating device 32 is provided to shake free any cuff which has failed to fall clear of the scrap which is taken up on a reel 34. Superimposed upon the ultrasonic vibration of the tool 13, there may be a vibration of relatively low frequency imparted by a rotary cam 200, Fig. 6B, periodically moving the tool 13 downwardly against return springs 202. Alternatively, the apparatus may be used for welding a thermoplastic film to another thermoplastic film or to a fabric. In another embodiment, Fig. 4 (not shown), the conveyer 22 carrying the anvils 12 is replaced by a rotatable cylinder (50) having pattern flanges (52) thereon and the working tip (54a) of the vibratory tool (54) may be a tangent to the cylinder or tapered in the direction of rotation. In a further embodiment, Fig. 5 (not shown), thermoplastic containers (O) are carried by a conveyer (122) and covered by a web (W 3 ) ultrasonically welded thereto and subsequently cut by a tool (130).
Patent GB-1386136-A (GB)
Title: Concrete structural member
IPC: C04B14/48
Filed: 1972-11-02
Abstract: 1386136 Metal reinforced concrete BATTELLE DEVELOPMENT CORP 2 Nov 1972 [26 Nov 1971] 50573/72 Heading B5A [Also in Division E1] A composite reinforced concrete element 10 having a pair of opposite surfaces 11, 12 whose dimensions are larger than their average separation comprises hydraulic cement or concrete 13 with a layer of wire mesh 16 therein adjacent and parallel to at least one of the surfaces 11, 12, wherein wire fibres 15 of low carbon steel are uniformly distributed in the element with an average spacing between the fibres of up to 0À3 inch. The fibres are gunned into a wet mix of sprayed concrete so as to orient them predominately parallel to the wire mesh. Additional fibres may be incorporated in regions of the element liable to be subjected to higher tensile stress. Chopped asbestos fibres may be incorporated in the concrete mix.
Patent GB-1170009-A (GB)
Title: Process for the Reduction of Nitrobenzene-3,4-Dicarboxylic Acid
IPC: C07C/
Filed: 1967-11-07
Abstract: 1,170,009. Reduction products of nitrobenzene - 3,4 - dicarboxylic acid. RHONEPOULENC S.A. 7 Nov., 1967 [8 Nov., 1966], No. 50674/67. Heading C2C. [Also in Division C3] Azobenzene - 3,3<SP>1</SP>,4,4<SP>1</SP> - tetracarboxylic acid of the formula and azoxybenzene-3,3<SP>1</SP>4,4<SP>1</SP>-tetracarboxylic acid of the formula are made by reducing nitrobenzene-3,4-dicarboxylic acid with aluminium in the presence of an aqueous solution of an alkali-metal hydroxide. Reaction conditions favouring the production of the azo compound or the azoxy compound, respectively, are indicated, and examples are given. The tetracarboxylic acids form dianhydrides when heated or when reacted with a dehydrating agent. The acids and their anhydrides are useful in the manufacture of polycondensates (see Division C3).
Patent GB-1196778-A (GB)
Title: Pulse-Width Modulation Circuits.
IPC: H03K3/282
Filed: 1967-11-08
Abstract: 1,196,778. Pulse modulation circuits; transistor pulse circuits. P. R. MALLORY & CO. Inc. 8 Nov., 1967 [8 Nov., 1966], No. 50892/67. Headings H3T and H4L. In a pulse width modulator the duty cycle of an astable multivibrator comprising transistors T11, T12, Fig. 1, is varied while the repetition rate remains constant, by an input signal applied in push-pull at terminals 50, 51. The timing capacitors C11, C12 are charged alternately to a predetermined voltage via resistors R 11, R 12 and diodes D11, D12 respectively and are discharged alternately to a voltage determined by the input signal which is differentially applied via transistors T13, T14 respectively. Linearity may be improved, Fig. 2 (not shown), by replacing resistors R15, R16 and R17 with constant current sources comprising appropriately energized transistors (T21, T22, T23). In a modification providing a higher repetition rate, Fig. 3, the output is supplied via amplifiers 30 comprising complementary transistors T31, T33 and T32, T34 respectively. In this arrangement the charging currents for the timing capacitors C11, C12 are supplied via the low saturation resistance of transistors T31, T32 respectively rather than the relatively large resistors R11, R12.
Patent GB-1441977-A (GB)
Title: Air-hydraulic pressure intensifying devices
IPC: F15B3/00
Filed: 1973-11-02
Abstract: 1441977 Hydropneumatic intensifiers SPENKLIN Ltd 31 Jan 1975 [2 Nov 1973] 50998/73 Heading F1D In an intensifier of the type in which a floating piston 25 is moved by air-pressure to produce a low hydraulic pressure in a chamber 17, by displacing liquid from a reservoir 31 into the chamber 17, and high-pressure in the chamber 17 is produced by a piston 35 and a plunger 20, the plunger 36 is constructed to control the fluid communication between the chamber 17 and both the reservoir 31 and a recuperator which is connected to a port 24. From the rest position shown in Fig. 1 operation is as follows. Compressed air is supplied through a port 40 and ducts 42, 45, 46 to a chamber 41 between the pistons 25, 35. This moves the piston 25 to the left and as it slides along a sleeve 19 liquid is displaced from the reservoir 31 into the chamber 17 through a groove 32 and passages 31, 51, 36. This pressure simultaneously moves the piston 35 to the right against the pressure of a stack 37 of Belleville washers. The plunger 20 is thus also moved to the right so that radial bores 50 in the plunger are moved out of alignment with an annular groove 21 which is in communication with the recuperator through bores 22, 23 and the port 24. Air is now supplied through a port 47 to a chamber 48 to move the piston 35 and the plunger 20 to the left. During this movement the passages 51 are moved away from the bore 33 and the reservoir 31 is disconnected from the chamber 17. The recuperator also remains disconnected.
Patent GB-1327625-A (GB)
Title: Vehicle chair having a resiliently supported seat
IPC: B60N2/50
Filed: 1970-10-28
Abstract: 1327625 Vehicle seats K G NYSTROM 28 Oct 1970 [31 Oct 1969 20 April 1970] 51154/70 Heading A4U In a vehicle seat, a seat part 2 is resiliently supported against vertical downward movement by a support structure 1 which includes a helical compression spring 10 having a winding pitch which varies along its length, the part 2 being connected in a parallelogram linkage with the support 1 by pairs of parallel arms 4, and being coupled to the spring by linkage including transverse shafts 8 journalled in the support 1 and rigid with the arms 4, the spring 10 acting on an arm19 rigid with the front shaft 8, at a point displaceable along the arm to vary the spring force transmitted to the seat and adjust the seat to suit the users weight or differing ground conditions. The pitch of the spring 10 has a maximum value at the middle of the spring and a minimum value at each end and the ends of the spring rest on a bracket 11, secured to the top wall of the structure 1, and on a shaft 13, mounted in a bracket 14, secured to the bottom wall of the structure, the ends of the legs of a yoke 15 mounted on the shaft 13 being connected by a shaft 16 which has a stud 17 which engages a selected one of a series of locking teeth 18 in a slot in the arm 19. The stud 17 is gripped by arms 20 of an operating lever 21 to rotate the shaft 16 to release the stud 17 for adjustment along the slot. The arm 20 may be spring- urged to locking position. A bolt 23 passing through a threaded hole in the yoke 15 presets the tension of the spring. A shock absorber 24, pivoted to the top wall of the structure 1, has an operating member 31 for adjustment to counteract rapid movements of the seat. A back 3 is mounted on the seat part 2 by a bracket 5, the inclination of the back being adjustable by an operating arm 6. In modifications the spring is enclosed in the bracket 5 and extends transversely of the seat the operating lever having a cam roller which contacts a guide surface on the support structure or the spring acts on the arm by a nut which is non-rotatable relatively to the arm and is mounted so as to be axially displaceable on a threaded bolt, which extends lengthwise of the arm, a toothed wheel on the bolt being operable by a ratchet wrench to rotate the bolt.
Patent GB-1056010-A (GB)
Title: Improvements in or relating to tube couplings
Inventor: LYON GILBERT THOMAS
IPC: F16L19/10
Filed: 1965-12-02
Abstract: 1,056,010. Pipe couplings. L. & L. MANUFACTURING CO. Dec. 2, 1965, No. 51284/65. Heading F2G. A coupling has a tubular coupling body 10 with an outwardly flared entrance 36 around an inwardly flared nose portion 26, an assembly comprising a sleeve 18 and a ring 16 which are fitted consecutively over a tube 12 to which the coupling is to be fitted, a nut 14 screw-threaded on to the body 10 which when advanced theretowards moves the ring relative to the sleeve, thereby deforming an annular lip at the body end of the sleeve into biting engagement with the surface of the tube 12 (Fig. 2, not shown). Further advancement of the nut causes the sleeve assembly to move as a unit, moving the ring 16 into the flared entrance 36 of the body 10 and causing the end of the tube to ride up the nose 26, flaring it outwards into intimate contact with the deformed ring 12 (Fig. 3, not shown). In the final position the deformed ring and flared tube-end completely fill the annular space between the flared surfaces of the body 10.
Patent GB-1190430-A (GB)
Title: Improvements in Current Carrying Contact Arm Pivot Assembly
IPC: H01R35/04
Filed: 1967-11-14
Abstract: 1,190,430. Switch contacts; heavy current switches. GENERAL ELECTRIC CO. 14 Nov., 1967 [21 Nov., 1966], No. 51752/67. Heading H1N. A current-carrying contact arm pivot assembly 21 for a multipole automatic electric circuit-breaker, Fig. 1 (not shown), includes a conductive support 22 providing pairs of projections 23 defining slots 24 Fig. 6 (not shown), in which one pivotally supported elongated moving contact arms 25 bearing movable main contacts 26, dished washers 30 pressing arms 25 against the projections 23 of support 22 to prevent arcing, during contact opening, between the contact arms 25 and the conductive pivotpin 31 which provide the current path between the arms 25 and the support 22. Contact springs 40 constantly bias contact arms 25 and an arcing contact arm 34 from a U-shaped bracket 37 to provide contact pressure upon closure of main contacts 26, 18, and arcing contacts 36, 17. A pivot-pin 42 passes through an enlarged hole 44 in contact arm 34 and supports the lower links 45 of a toggle link mechanism 46, Figs. 1, 2 (not shown), with overcentre snapaction springs 48.
Patent GB-1083739-A (GB)
Title: Improvements in bearing and shaft lubrication arrangements
IPC: F16N31/02
Filed: 1964-12-21
Abstract: 1,083,739. Bearings. GENERAL ELECTRIC CO. Dec. 21, 1964 [Jan. 2, 1964], No. 51818/64. Heading F2A. A lubricating arrangement comprises a bearing sleeve 21 supported in a wall 22, and capillary passageways extending from adjacent one end of the bearing to the reservoir, part of the passageways being formed in an end cap 41. In Fig. 4 oil from the end of sintered permeable sleeve 21 is flung outwardly by washer 45 and passes through angularly spaced capillary grooves 46 extending from annular groove 47. Clearance 49a and communicating passageways 53 are of capillary dimensions, passageways 53 being formed by projections 52 extending eccentrically in apertures. Oil thus returns to a reservoir (30) containing a felt pad (32) surrounding and contacting the bearing sleeve 21. The cap is of moulded plastics and is secured by studs (42). The other end of the bearing (Fig. 6, not shown) has capillary clearances (61a) between a cap (61) and ears of a plate (71).
Patent GB-1406998-A (GB)
Title: Coaxial cables
IPC: H01B13/26
Filed: 1971-11-09
Abstract: 1406998 Coaxial pair cable PIRELLI GENERAL CABLE WORKS Ltd 1 Nov 1972 A multicore coaxial pair cable is made by stranding together coaxial pairs 1 and applying a layer 3 of impact absorbing cellular material around the stranded pairs. Paper tapes 6, 7 may be wound over the impact absorbing material and further concentric layers of coaxial pairs may be applied to the stranded pairs each layer being separated by a layer of impact absorbing material. The material prevents cyclic deformation and the attendant resonance distortions in the coaxial pairs.
Patent GB-1112983-A (GB)
Title: Improvements in or relating to frequency synthesisers
Inventor: MCAINSH JARVIS NEVILLE
IPC: H03L7/185
Filed: 1965-12-13
Abstract: 1,112,983. Automatic frequency control systems. GENERAL ELECTRIC CO. Ltd. 13 June, 1966 [13 Dec., 1965], No. 52295/67. Divided out of 1,112,981. Heading H3A. The description is substantially the same as that of Specification 1,112,981 but the claims differ.
Patent GB-1243656-A (GB)
Title: Improvements relating to box elements
IPC: A45C5/02
Filed: 1968-11-05
Abstract: 1,243,656. Making boxes. BERGH BROS. CO. Inc. 5 Nov., 1968 [15 Feb., 1968], No. 52402/R8. Heading B5D. [Also in Division B8] Hinged box parts of a jewelry display box, Fig. 1 (not shown), are each formed and provided with a decorative external covering by positioning a blank of the decorative covering 24 over a recess in a die 40 with a scored cardboard blank 60 overlying the covering 24, pressing a punch 44 into the recess to form the blank 60 into tray-like box part shape and stretch the blank 24 around the tray-like box part, and fastening a clamping rim 30c about the peripheral edges of the formed box part to retain the covering in taut condition about the box part. The covering, with the exception of the edge portion gripped between the rim and box part well, is movable relative to the underlying box part surfaces. A foam cushion 22 may be disposed between the blank of cardboard and the covering, which may be of rayon, velvet, satin, or cotton. In an alternative embodiment, Figs. 2-6 (not shown), the box part is formed by a steel stamping, which is fastened to the punch by a magnet 46 and is covered by inserting the punch and stamping into the recess 42 of the die 40 in the manner described above. The rim may be of channel-section as shown with integral piercing projections 52, Fig. 4 (not shown), on the lower flange. Alternatively the lower flange may be omitted, Fig. 3 (not shown).
Patent GB-1114606-A (GB)
Title: Wave transmission network
IPC: H03H11/18
Filed: 1965-12-10
Abstract: 1,114,606. Transistor phase-correcting circuits. RADIO CORPORATION OF AMERICA. 10 Dec., 1965 [18 Dec., 1964], No. 52650/65. Heading H3T. [Also in Division H2] A circuit which gives an output of constant amplitude but with phase rotation proportional to frequency comprises a current generator, i.e. transistor Q, feeding into one diagonal 3, 4 of a bridge network comprising resistors R1, R2, R3 and reactance, i.e. capacitor C1 The load R L  is of low value by comparison with the resistors R1, R2, R3 and is connected across bridge diagonal 5, 6: as shown it is in series with D.C. blocking capacitor C2, a source V c  for energizing the transistor being connected in series with resistor R3. A field effect transistor may be employed.