baber/WOPTO huggingface dataset:
Patent GB-695771-A (GB)
Title: Improvements in thumb tack
IPC: B43M15/00
Filed: 1951-12-17
Abstract: 695,771. Drawing pins. HARRE, K. J. S. Dec. 17, 1951 [Dec. 16, 1950], No. 29545/51. Class 89 (ii) Drawing pins have sheet metal heads bent to an obtuse angle at 4 and pins 5 that are bent to a circular arc centred on the line 4. When the part 2 of the head is flat on the board the point of the pin is clear of the paper. Pressure on the part 3 causes the pin to enter along a curved path and pressure on the part 2 will effect its removal. The pin may be riveted to the head or punched out therefrom.
Patent GB-1488558-A (GB)
Title: Reframing arrangement for receivers
IPC: H04L7/00
Filed: 1975-07-15
Abstract: 1488558 Time division multiplex reframing WESTERN ELECTRIC CO Inc 15 July 1975 [19 July 1974] 29616/75 Heading H4M In a reframing arrangement for a known digital receiver 105 wherein, in normal use, framing is checked by comparing incoming frames with a locally generated framing signal provided by an oscillator responsive to the incoming signal, detection of an out-of-frame condition causing the locally generated framing signal to back shift by one bit per frame with respect to the received signal until synchronism is restored, a signal generator 110 is provided as a source; alternative to the signals on line 102 from transmitter 101; of receiver input signals, the effective data rate of generator 110 exceeding that of transmitter 101 to ensure that the rate of the back shifting locally generated framing signal when the input signals are received from generator 110, is substantially synchronous with, or advances at a slight rate, with respect to the frame rate from the transmitter. As soon as an out-of-frame condition is detected by unit 108, switch 104 is operated to connect the receiver input to generator 110 for the timing-out period of monostable 302, during which time, the locally generated framing signal advances by a few bits with respect to the framing from transmitter 101. Alternatively, if an out-of-frame condition co-exists with a signal, from monitor 103 present if no pulse has been received on line 102 for a predetermined number of bits, or the violation of bipolarity on the line exceeds a predetermined level, then via AND 112, switch 104 is operated to connect generator 110 to the receiver, the connection being maintained until the unit 103 indicates a normal input signal once more. The above alternative arrangements are displayed in Figs. 3; Figs. 1, 2 (not shown). They are combined in virtue of OR 401 in the shown embodiment. The out-of-frame detector may include a delay arrangement, comparator and integrator, Fig. 2 (not shown), providing the out-of-frame signal when the effects of the insertion of the extra bit in the locally generated framing signal are detected. Use of the generator 110 is stated to reduce elapsed time until an in-frame condition is regained.
Patent GB-866536-A (GB)
Title: Folding trolley
IPC: A47B31/04
Filed: 1957-09-20
Abstract: 866,536. Tables &c. SLOVENIJALES PODJETJE ZA IZVOZ LESA IN LESNIH IZDELKOV. Sept. 20, 1957 [July 9, 1957], No. 29726/57. Class 52(3). A tea trolley consists of an X-form stand comprising legs 1, 2 pivoted at 3 and retained in open position by a shelf 8 pivoted to legs 1 by screws 7 and connected by pin and slot devices 9, 10 to legs 2 so that when the stand is folded the shelf lies in the plane of the tand. Cross-bars 4, 5 at the top of the stand support a detachable tray 11 provided on its under surface with folding legs 14 retained in extended position by a resilient bar 15 so that the tray can be used as a separate table.
Patent GB-536375-A (GB)
Title: Improvements in wireless receiving arrangements
IPC: H03G11/00
Filed: 1939-11-09
Abstract: 536,375. Radio receiving circuits; valve relay circuits. SOC. FRANCAISE RADIO-ELECTRIQUE: Nov. 9, 1939, No. 29769. Convention date, Nov. 10, 1938. [Class 40 (v)] Interference is suppressed by arranging two screen-grid valves 1, 2, Fig. 1, with other control grids g', g<SP>2</SP> supplied from the I.F. transformer MF and their screen grids e<SP>1</SP>, e<SP>2</SP> and anodes a<SP>1</SP>, a<SP>2</SP> cross-connected. Valve 2 is normally biased to cut-off and the signal is amplified by valve 1 in usual manner. When interference causes the amplitude of the input to exceed a certain limit valve 2 conducts causing through potentiometer P a fall in the potential of grid e<SP>1</SP> thus reducing conduction of valve 1 and causing through potentiometer P1 a rise in the potential of grid e<SP>2</SP>. Whereupon this reaction effect causes valve 2 to conduct even more and valve 1 to cutoff. The Specification as open to inspection under Sect. 91 comprises also another embodiment. Similar interaction between valves 1 and 4, Fig. 2 (Cancelled) is used to operate a relay R by signal impulses applied through a condenser C. Direct-coupled valves 2, 3 are inserted in the forward path of the reaction circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-340943-A (GB)
Title: Improvements in and relating to the sound insulation in buildings, ships and other structures
IPC: E04B1/82
Filed: 1929-10-02
Abstract: 340,943. Insulating buildings and ships' cabins from vibrations. HARRAP, E. R., Harefield Mills, Harefield, near Uxbridge, Middlesex. Oct. 2, 1929, No. 29898. [Classes 20 (ii) and 20 (iv).] Sound and other vibrations are insulated in rooms of buildings and in cabins and saloons of ships by means of indiarubber connecting membera d, h of channel, tee, or angle section which are secured to the main structure and receive or hold the partitions, panelling or lining, or bearers for flooring. Fig. 1 shows the insulation of an engine room. The wood panelling g, backed with felted asbestos m, is secured in the rubber channel strips d, h, which are provided with air spaces e, i the upper strip h has the outer flange j separate, and in a modification the inner flange of both strips is omitted. Fig. 3 shows a partition wall formed of wooden panelling lined with felted asbestos m ; the lower strip d is double channelled, and the upper strip h has both outer flanges removable. Fig. 6 shows the floor bearers q resting in rubber channels p.
Patent GB-236815-A (GB)
Title: Improvements in centrifugal machines for making butter
IPC: A01J15/06
Filed: 1924-12-13
Abstract: 236,815. Mase, A. O., and Corsini, P. O. Dec. 13, 1924. Mixing and churning apparatus. - Apparatus for making butter from milk or cream by the combined action of centrifugal force and air currents, has a hollow spindle 4 with an agitating device 5 and with one or more vanes 6 to collect air which is forced down the spindle into the milk or cream. The vanes may be integral with the spindle and are bent forward in the direction of rotation. The spindle may be operated through a friction disc 12 held in engagement with a collar 11 by a spring 13. The gear is supported on a column 3 and clamped by a fly-nut 16.
Patent GB-297999-A (GB)
Title: Improvements in the production of thiourea
Filed: 1927-11-09
Abstract: 297,999. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 9, 1927. Thiourea.-Thiourea is made by treating calcium cyanamide with an ammonium sulphide in the presence of water and of an ammonium salt of an acid forming a calcium salt which is practically insoluble in water, e.g. an ammonium salt of carbonic, sulphuric, or oxalic acid. An example is given.
Patent GB-405416-A (GB)
Title: Improvements in or relating to boots and shoes
IPC: A43B13/32
Filed: 1932-10-27
Abstract: 405,416. Boots &c. ASHWORTH, R., Albion Mills, Albion Street, Elton, Bury. Oct. 27, 1932, No. 30070. [Class 17 (ii).] Connecting uppers to insoles and soles.-A leather upper 1 is connected, by a cellulose or other adhesive, to a backing layer of textile fabric 4 attached to the upper surface of a rubber sole 3 by vulcanization before the sole is applied to the upper. A metal shank stiffener may be secured, e.g. by tacks, to the insole 2, the fabric backing 4, or the outer sole 3. The fabric backing 4 may be sunk into a recess formed in the upper surface of the sole 3.
Patent GB-627995-A (GB)
Title: Improvements in lubricators
IPC: F16N7/34
Filed: 1945-10-27
Abstract: 627,995. Lubricators. ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET. Oct. 9, 1946, No. 30193. Convention date, Oct. 27, 1945. [Class 12 (iii)] In an automatic air-line lubricator comprising a lubricant chamber which passes lubricant through a filter pad provided with an adjustable compressing screw, and thence to the air-line via at least one passage of relatively small cross-section, the compressing screw is adjusted through the filling opening of the chamber. An air-line lubricator of two-part construction has an oil chamber 3 surrounding an air conduit and containing a felt pad 4 housed in a cup member 5 which has a perforated flange 6. A notched headed nut 8 operable through the filling vent which is normally closed by a plug 15, is arranged to compress the felt pad 4 against a wall 7 of the oil chamber, so as to regulate the flow of lubricant which seeps by a capillary action into a narrow passage 10. The passage 10 which connects the oil chamber with a narrow passage 9 leading to the air conduit 11, is throttled by a needle valve 12 which is disposed in a bore running parallel to the axis of the lubricator such that when the lubricator is connected to an air-line, the needle valve is inaccessible. After adjustment, the needle valve 12 is secured in position by a spring-ring 13 arranged in an annular groove in the conduit 11.
Patent GB-262422-A (GB)
IPC: G01P3/48
Filed: 1926-11-29
Abstract: 262,422. Seguin, L., and Seguin, A. Dec. 2, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Electric speed indicators. - A continuous or alternating speed is measured by interrupting a continuous current at a frequency proportional to the speed to be measured, and indicating the frequency of the interruptions of the current. Any frequency meter of known type may be used, and means may be provided to prevent the meter being affected by variations in the voltage and the duration of contact. Fig. 2 shows an arrangement in which a rotary contact device 3 driven at a speed proportional to that to be measured interrupts a circuit containing a coil 4 of a frequency meter 2. A second coil 6 is provided to compensate for voltage variations. The coils 4, 6 may be arranged at right angles, one within the other, or may be arranged side-by-side with the current flowing in opposite directions. The arrangement shown in Fig. 5 is such that the measurement of the speed will be unaffected by the duration of the contact 3. A condenser 9 is charged through a rotary contact 10 and is discharged by the contact 3 through the frequency meter 2.
Patent GB-1399530-A (GB)
Title: Compound transistors
IPC: H03F3/18
Filed: 1972-06-28
Abstract: 1399530 Integrated circuit NIPPON ELECTRIC CO Ltd 28 June 1972 [29 June 1971] 30280/72 Heading H1K [Also in Division H3] A compound transistor comprises a first transistor 1 having its emitter connected to the base of a like conductively second transistor 7, its collector to the base of an opposite conductivity third transistor 2 and the collector of the third transistor connected to the emitter of the second transistor, the feedback loop 9 being arranged to have a gain smaller than unity for frequencies above that at which the feedback becomes positive. Signals at input terminal 3 cause transistor 1 to drive transistors 2 and 7 simultaneously to draw current through a load 10. A resistor 12 may be included between the emitter of transistor 2 and the collector of transistor 9 and with a protection circuit at terminal 13 be used to prevent high currents on the circuit. Alternatively the resistor may be replaced by a short circuit. In integrated form, Fig. 4, the transistor 1 is a lateral PNP type.
Patent GB-484122-A (GB)
Title: Improvements in and relating to tea pots and like domestic vessels
IPC: A47J45/07
Filed: 1936-11-07
Abstract: 484,122. Teapot &c. handles. TOMKINSON, Ltd., F. W., and TOMKINSON, E. M. Nov. 7, 1936, No. 30356. [Class 66] Handles are attached to teapots, saucepans, &c., by the provision on one of the parts, e.g. the handle, of a cap or washer provided with spring tongues, and on the other part, e.g. the vessel, of a socket provided with a flange or lip behind which the tongues are adapted to be engaged and anchored when the cap has been forced into the socket. Fig. 3 shows a cap f provided with tongues g attached to a boss at the end of a saucepan handle and engaged in a socket b provided on the saucepan ; the inner face of the flange e is inclined so that as the tongues spread out after entry the parts are drawn closely together. In the case of a teapot &c., both ends of the handle are so formed. Fig. 5 shows a metal handle m having the end formed as a socket for engagement by a cap mounted on a boss provided on the vessel. A resilient disc or washer may be placed in the socket to be compressed by the boss as the handle is forced into place. The caps may be of square or other shape to fit correspondingly shaped sockets.
Patent GB-617844-A (GB)
Title: Draft gear
IPC: B61G9/10
Filed: 1946-10-11
Abstract: 617,844. Railway vehicles. NEWTON, E. P. (Peerless Equipment Co.). Oct. 11, 1946, No. 30429. [Class 103 (v)] A draft gear comprises a housing 24, 25, 26 having an open end portion of generally ova section so that draft and buffing forces cause the shoes 18 to exert ar outward pressure along its major axis and cause contraction of the housing along its minor axis, thereby increasing the pressure exerted on the sides 28 of the shoes 18. Spherical segments 38 may be interposed between the wedge element 22 and the shoes 18 to ensure proper seating cooperation and these elements may be recessed in either the wedge face or the shoe face.
Patent GB-773056-A (GB)
Title: Improvements in unsaturated polyester resins
IPC: C08K5/01
Filed: 1955-10-25
Abstract: Polyester resins of improved physical properties are obtained from a mixture comprising a modified or unmodified unsaturated polyester, e.g. of maleic or fumaric acid, an unsaturated monomer and an aromatic compound containing at least two isopropenyl radicals, e.g. o-, m- and p-di-isopropenylbenzenes, tri- and tetra-isopropenyl benzenes, their alkyl derivatives and compounds containing two or more aromatic nuclei.  The unsaturated monomer may be styrene, substituted styrenes, vinyl acetate, diallyl phthalate, adipate or succinate, acrylic or methacrylic acid esters, acrylonitrile, methacrylonitrile, triallyl cyanurate or phosphate, or mixtures thereof.  Polymerization catalysts such as Redox systems, organic peracids, cyclohexanone or methyl ethyl ketone peroxide, with or without accelerators, such as cobalt naphthenate, may be included. Optional additives are flow agents, e.g. ethyl or nitro cellulose solutions, dyestuffs and pigments. The aromatic compound may be added to the other ingredients immediately before use, e.g. in the mixing nozzle of a spray gun, in order to prevent premature polymerization. Lacquer films may be obtained on glass, wood or metal.
Patent GB-655790-A (GB)
Title: Improvements in or relating to electron discharge tube circuits for generating electrical oscillations of sawtooth waveform
Inventor: BEST JOHN EDWARD
IPC: H03K4/32
Filed: 1948-11-24
Abstract: 655,790. Sawtooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 24, 1948, Nos. 30492/48 and 24321/49. [Class 40 (vi)] In a circuit for generating a sawtooth wave in an inductive load, of the type in which the return stroke is generated by allowing the load to execute a free half-cycle of oscillation and in which the initial and remaining part respectively of the forward stroke are generated by the current in a damping valve and a driving valve, negative feedback is applied to both valves. In Fig. 1 one valve is the driver and one the damping valve, the two valves being controlled by the push-pull outputs of a sawtooth source 5 and the negative feedback being obtained from a resistor 12 in series with the output coil 11. The damping valve may alternatively be connected directly across the secondary winding 10 of the output transformer (Fig. 2, not shown). In Fig. 3, the latter part of the waveform applied to the scanning coil 21 is generated by the output from a driver valve 13 and the first part by the current through a damping valve 14 resulting from the " resonant return" operation. Negative feedback is applied from the output circuit through capacitor 28 and a pair of cathode coupled amplifier valves 24, the first anode supplying the feedback for the driver valve and the second anode the feedback for the damping valve. The coupling capacitor 28 and resistor 31 are proportioned such that C28xR31=L21/R23 to produce a downward slope to the feedback pulse to compensate for the resistance 23 of the scanning coil. Resistor 46 in the second anode circuit of valve 24 is made smaller than resistor 35 in order that the damping valve is cut off slowly whereas the driver valve is brought into operation more rapidly. The flyback is initiated by negative pulses from a valve 55 which cuts off the driver valve, a rectifier 38 being provided to prevent the absorption of the synchronizing pulse by a capacitor 44 which is inserted to prevent selfoscillation due to phase shift in the feedback path. A potentiometer 33 adjusts the slope of the output wave. The linearity of the wave may be improved by connecting a resistor 57 in series with the anode of the damping valve, the value of the resistor being equal to the effective anode impedance of the valve (i.e. as modified by the negative feedback) so that the anode is substantially a point of zero impedance.
Patent GB-801302-A (GB)
Title: Improvements in apparatus for re-inforcing and punching looseleaf sheets
IPC: B26D7/34
Filed: 1956-10-05
Abstract: 801,302. Reinforcing perforations by adhesive tabs; filing papers. HIRSON, B. Oct. 5, 1956, No. 30493/56. Classes 73 and 146(1) [Also in Group VIII] Apparatus for reinforcing and punching looseleaf sheets comprises a body 11 provided with a guide sleeve 29 having keyed thereto and reciprocable therein a sleeve 32 within which is disposed a tubular element 35 having a shearing element 38 surrounding a lower reduced portion thereof, the sleeve 32, shearing element 38 and tubular element 35 being secured together by means of screws 39, a spring-influenced collar 42 secured to an upper enlarged portion 36 of the tubular element 35, and a spring-influenced punch 45 disposed concentrically or eccentrically within the tubular element 35. The lower end of the punch is surrounded by a spring-influenced pressing shoe 49, the punch having a recessed portion 51, Fig. 5, within which is guided a pin 52 extending substantially diametrically through the pressing shoe. The shearing element may be of circular or other cross-section and co-operates with a shear plate 24 secured to the bottom face of the body 11. The punch and shearing element are operable by means of cams 58, 57 respectively. the cam 58 being secured to a side face of the cam 57 which is mounted on a shaft 56. The body 11 is secured to a supporting bar 15, Fig. 1, so as to be adjustable longitudinally thereof, by means of screws 13 passing through slots 14 in the supporting bar. Two or more of the shearing, attaching and punching mechanisms are associated with each other. In operation, the shearing element 38 is depressed by means of the cam 57 to shear a patch 54, Fig. 6, from an adhesive ribbon 26. During downward movement of the punch 45, the shoe 49 presses the patch 54 into firm engagement with a sheet 19 after which the punch punches a hole 55 in the attached patch and sheet.
Patent GB-281096-A (GB)
Title: Improvements in or connected with oil drums or the like and pumps therefor
IPC: B67D7/60
Filed: 1926-12-02
Abstract: 281,096. Pepper, J. R. Dec. 2, 1926. Mountings. - A device for facilitating the pumping of liquids from casks &c. comprises a base or stand B having legs B<1> carrying an upright or rod R provided with a, slidable clip C which engages the pump-barrel P. Slidably mounted on the pump-barrel P is a clip H carrying a cone H<1> for fitting various sizes of bunghole. The internal diameter of the cone is large enough to allow waste collected in a drip-tray T to pass back into the barrel. The cone H may be integral with the tray T. A filter may be provided on the pump outlet.
Patent GB-207837-A (GB)
Title: Improvements in engraved dies intended to emboss microscopic lenticular nets on photographic films
IPC: G03C7/14
Filed: 1923-12-04
Abstract: 207,837. Keller-Dorian et Cie. Dec. 4, 1922, [Convention date]. Void [Publislied under Sect. 91 of the Act]. Colour photography; films.-Relates to processes in which films having microscopic lenticular elements thereon are used, and consists in decreasing the size of the elements to such an extent that diffraction has a preponderating effect in the formation of the microscopic images of the ocular disc of the objective. The clearness and definition of the images are thus enhanced. The elements number 500 per sq. mm. or more and the number may be selected so that the diameter of each of them corresponds with the diffraction image whereby the whole of the sensitive film is utilized. The number of elements will varv according to the thickness of the film and the aperture used. Films having larger lenticular elements can be made to give the required diffraction effects by employing an opaque screen apertured to reduce the elements to the required size.
Patent GB-1133873-A (GB)
Title: Improvements in or relating to cross-flow blowers
Inventor: RIXON HARRY DAVID
IPC: F04D29/26
Filed: 1966-07-07
Abstract: 1,133,873. Transverse-flow fans. SOLARTRON ELECTRONIC GROUP Ltd. June 7, 1967 [July 7, 1966], No.30610/66. Heading F1C. [Also in Division F2] The rotor 18 of a transverse-flow fan is supported on a driving shaft 17 by a universal joint comprising a flexible bush 16, e.g. of nitrile rubber, having an internal annular groove 12 which grips a ring 10 secured on the shaft, the end-plate 21 of the rotor drivingly engaging the external periphery of the bush. As shown, the bush includes a part 20 of hexagonal or other non- circular cross-section, the hole 22 in the rotor end-plate being of corresponding shape. The endplate seats in a groove 15 round the part 20. The hole 22 may include internal ridges which engage axial slots in the part 20. In Fig. 1 (not shown) a plastics rotor end-plate has an annular flange (14), coaxial with the rotor, which frictionally engages a cylindrical portion of the bush. A hole in the centre of the end-plate is larger than the shaft diameter to allow limited universal movement.
Patent GB-834221-A (GB)
Title: Gaging apparatus
IPC: B07C5/36
Filed: 1956-08-31
Abstract: 834,221. Gauging bearing races &c. automatically. SHEFFIELD CORPORATION. Aug. 31, 1956 [Sept. 12, 1955], No. 30681/58. Divided out of 834,220. Drawings to Specification. Class 106 (2). The subject-matter of this Specification is identical with that described in Specification 834,220, but, the claims differ.