baber/WOPTO huggingface dataset:
Patent GB-185334-A (GB)
Title: Improvements relating to screw operated presses
IPC: B30B1/18
Filed: 1921-09-22
Abstract: 185,334. Eaton, M. Sept. 22, 1921. Embossing and stamping.-In presses of the type in which a press-head is mounted on parallel guide-rods and is operated by a quick-pitch screw driven either by hand or power, the guide rods c are carried bv a vertical column a in such a manner that there exists a clear space between the lower ends of the guide rods and the base. The press-head guide-bearings may be split to allow of adjustment by screws h.
Patent GB-443587-A (GB)
Title: Apparatus for recording temperatures
IPC: G02B23/12
Filed: 1934-08-31
Abstract: 443,587. Pyrometers. CARPMAEL, A., 24, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges.; Frankfort-on-Main, Germany) Aug. 31, 1934, No. 25177. [Class 97 (iii)] For indicating temperatures of single spots in temperature fields, a casing is provided with optical means for observing the image of the hot object which is produced by the action of infrared rays upon an excited luminous screen, as described in Specification 391,374, and with a standardized grey filter for determining the blackening of the image at the spot the temperature of which is to be indicated. In the form shown, a white disc 3 is rotatably mounted by means of a hollow shaft 2 in the casing 1. An image of the hot object is projected by the lens 4 on the lower part of the disc 3 which has a small circle 18 in the optical axis of the lens 4 to facilitate focusing the apparatus on the desired spot. The image -may be viewed through the eyepiece 6 and mirror 5. The upper part of the disc 3 is covered by a layer of luminescent substance 7 and has at the same distance from the axis as the circle on the lower part a small hole 20 behind which is a small disc 8 also coated with a luminescent layer. The lens 4 is first focused on the hot body, and the screens 7, 8 excited to luminescence by the lamp 9. The shaft 2 is then turned through 180‹ to bring the screens 7, 8, and a filter 13, through which only infra-red rays penetrate, before the lens 4. During this movement a screen 22 slides between the screens 7, 8 and masks the screen 8. After a predetermined exposure the mask 15 is interposed by rotation of the handle 16 and spindle 14. The screen 22 to which is attached a gradated grey filter is then moved back by means of the slide 17 until the tint of the luminescent substance 8, which has not been extinguished by exposure to infra - red rays, corresponds exactly to the tint of the surroundings of the hole 20. The position of the slide 17 indicates the temperature of the hot object at this spot. In a modification the disc 8 may be dispensed with and the mirror 5 provided with a hole through which light from the lamp 9 or an unexposed part of the surface 7 may be reflected by prisms.
Patent GB-864415-A (GB)
Title: Improvements in or relating to automatic synchronisation equipment
Inventor: BENNETT GORDON CHARLES
IPC: H02J3/42
Filed: 1957-08-09
Abstract: 864,415. Phase detectors. STANDARD TELEPHONES & CABLES Ltd. Aug. 9, 1957, No. 25268/57. Class 40(5) [Also in Group XXXV] An automatic synchronising circuit for an alternator L<SP>1</SP> N<SP>1</SP> to be coupled with the mains supply when both are coincident in frequency and phase, during a period when its frequency is cycled through a range including mains frequency, comprises limiters formed by self-biased rectifier bridges MR1-MR4 and MR5 -M R8generating rectangular wave voltages of amplitude determined by series and shunt resistors R1, R3 and R2, R4 respectively which are then passed through cathode followers V1a, V1b, to differentiating circuits C6, R11 and C7, R12, the positivegoing pulses obtained by differentiation then being eliminated by shunt diodes MR9, MR10 and the negative-going pulses applied to a coincidence gate comprising valves V2a, V2b with common anode circuit R13 and common cathode circuit R14, MR11, whose clamping rectifier MR11 sets a minimum cathode voltage. The arrangement is such that single pulses reaching the control grid of either valve V2a or V2b produce little voltage change across anode resistor R13, the common cathode voltage following down in voltage that of the grid, but time-coincidence of pulses on the control grids cuts off both valves and a large positive-going pulse is derived from the common anode resistor R13 which is then rectified in a diode pump integrating circuit MR12, MR13, C9 with leak resistor R15. The number of pulses produced and the voltage on C9 are inversely proportional to the difference in frequency between the two sources and near frequency synchronism the voltage on C9 rises sufficiently to fire a backbiased cold cathode discharge tube V3 and operate a relay SYN. The contacts of the latter then operate switchgear for coupling the A.C. generator to the mains. A bias potentiometer RV2 adjusts the charging time constant of the network C9, R15 to match the deceleration of the alternator so that the delay between initiation of relay SYN and the actual connection of the alternator to the bus-bars multiplied by the deceleration of the alternator is such that connection is made when both pulse trains are in exact phase coincidence. A phase shifter RV1, Cl allows adjustment for any compensatory or required difference in phase of the mains and generator. The alternator may be part of an A.C. standby power plant for telecommunication systems. Specification 746,268 is referred to.
Patent GB-626069-A (GB)
Title: Improved process for the catalytic synthesis of hydrocarbons
IPC: C07C1/04
Filed: 1946-08-23
Abstract: Synthesis of hydrocarbons from a gas mixture containing carbon monoxide and hydrogen is effected by passing upwards through a body of powdered Fischer synthesis catalyst maintained in a dense phase, fluidised form and comprising particles ranging upwardly in size from 5m  or less, the larger particles over 80m  being predominantly smaller than 150m  and containing no particles larger than 1650m , and having the following overall size distribution: diameter in microns: 0-20, 20-80, and above 80; percentages: less than 25, 30-85, and less than 45 respectively. The catalyst may be produced by grinding, and adding finer or coarser particles as required or ground catalyst separated by air flotation and the fractions blended.  A sol of the catalyst may be dispersed in droplets in an inert gas or liquid by emulsification until it sets to a gel, whereby spherical particles are obtained. Examples illustrate the effect of catalyst size distribution on fluidization and temperature control.ALSO:Synthesis of hydrocarbons from a gas mixture containing carbon monoxide and hydrogen is effected by passing upwards through a body of powdered Fischer synthesis catalyst maintained in a dense phase, fluidized form and comprising particles ranging upwardly in size from 5m  or less, the larger particles over 80m  being predominantly smaller than 150m  and containing no particles larger than 1650m , and having the following overall size distribution:-diameter in microns: 0-20, 20-80, and above 80; percentages: less than 25, 30-85, and less than 45 respectively. The upward gas velocity is from 0.2-10 ft./sec.  A vertical reactor having cooling pipes disposed in the dense phase reaction zone and a dust separator at the top may be used, separated catalyst being returned and vapours water scrubbed and hydrocarbon separated.  With iron catalysts, 550-650 DEG  F. and 10-30 atmos. are the preferred conditions; with cobalt, 375-475 DEG  F. and 5-15 atmos.  The catalyst may be produced by grinding and adding finer or coarser particles as required, or ground catalyst separated by air flotation and the fractions blended.  A sol of the catalyst may be dispersed in droplets in an inert gas or liquid by emulsification until it sets to a gel, whereby spherical particles are obtained.  Examples illustrate the effect of catalyst size distribution on fluidization and temperature control.
Patent GB-794321-A (GB)
Title: Miniature or child-size sewing machine
IPC: D05B77/00
Filed: 1956-08-20
Abstract: 794,321. Sewing machines. SINGER MANUFACTURING CO. Aug. 20, 1956 [Sept. 9, 1955], No. 25318/56. Class 112 A miniature sewing machine is mounted on a base-plate 15 to one end of which is hinged a hollow bed-plate extension 20 having a continuous U-shaped depending wall and an upper surface 21 with a cut out 25 to receive the machine. The extension, which opens to receive articles of sewing paraphernalia, is held in its normal operative position, in which the walls rest on the base-plate, by means of a spring clip 29 and a stud 28. The base-plate is apertured at 40 to provide a hand-hold. and an aperture 41 is provided whereby it may be hung on a hook.
Patent GB-157542-A (GB)
Title: New and improved hoppers for crushing machines and the like
IPC: B02C4/28
Filed: 1919-10-15
Abstract: 157,542. Levy, L. R. Oct. 15, 1919. Roller mills.-Feed-hoppers 3 for roller mills are provided with a restricted outlet arranged as shown in Figs. 2 or 3. The hopper shown in Fig. 2 is provided with a block 8 shaped to form with the rollers 1, 2 two narrow outlet passages 9. The hopper shown in Fig. 3 is provided with a curved side 11 and a straight side 10; one of the sides may be provided with a slide for adjusttng the outlet 12. As applied to roller mills for grinding plastic mixtures, the above-described outlets prevent the rollers from extracting the greasy components more quickly than the dry components and thereby drying the mixture.
Patent GB-1083324-A (GB)
Title: Improvements in or relating to hydraulic fluids
Inventor: KER ROBERT ALAN CAMERON
IPC: C10M105/36
Filed: 1964-06-18
Abstract: Fluids for use in hydraulic systems have a kinematic viscosity at - 40 DEG  C. of not more than 5000 cs. and consist of, or comprise at least 50 weight per cent of, at least one ester of formula <FORM:1083324/C4-C5/1> where R is a straight or branched chain alkylene group having at least 2 carbon atoms, R1 is phenyl or C1- 4 alkyl, R2 is ethylene, propylene or butylene, and n is an integer of 0-3.  Typical esters are those derived from adipic acid and triethylene glycol monomethyl ether, and from succinic acid and ethylene glycol monomethyl ether.  Many optional additives are mentioned including the following: polyoxyalkylene glycols and ethers and esters thereof, castor oil and various treated castor oils, borate esters, phosphite and phosphate esters, amine salts of inorganic acids, dialkyl citrates, dicarboxylic acids and esters thereof, fatty acids and soaps thereof, benzotriazole, mercaptobenzothiazole, phenols, sodium nitrate, phenothiazines, and various types of amines.
Patent GB-1322415-A (GB)
Title: Apparatus for the stimulated emission of radiation
IPC: H01S3/223
Filed: 1971-04-19
Abstract: 1322415 Lasers WESTERN ELECTRIC CO Inc 19 April 1971 [1 April 1970] 25384/71 Heading H1C A gaseous laser active medium having an electric dipole moment is optically pumped by light of a wavelength matching a vibrationalrotational absorption of the gas; this inverts the population of a pure rotational transition in the gas to produce a laser output in the 30Ám-3mm region. The gaseous medium may be methyl fluoride, vinyl chloride, formic acid, a fully halogenated hydrocarbon with up to three carbon atoms, or an alcohol having up to three carbon atoms; many examples are given, including amines, ammonia, cyanides, isocyanides, mercaptans, and fluorobenzene. Isotopic forms may also be used. A suitable pumping source is a Q switched CO 2  laser for pulse operation, or a CW CO 2  laser for continuous use. In the latter case an additive such as He, PF 5  or SF 5  may be used in the gas to depopulate the upper vibrational level of the pumped transition and permit continuous operation. Apparatus: In Fig. 1 the active gas is contained between reflectors 13 and 14, and is pumped by a beam from laser 15 slightly off the axis of resonator 11 to avoid reflection problems. The pumping light is focused into the active gas via apertures 18a and 18, while the stimulated output from aperture 18a is reflected by mirror 17 to a collimating lens 19. The output is diffracted by aperture 18a and does not pass through aperture 18. To use the apparatus as an amplifier in the range 30Ám-3mm, the reflector 13 is made reflective to pumping light only, and radiation to be amplified is passed into the gas through this reflector, Fig. 2. In this figure, the reflectors 25, 27 and 14 reflect pumping light through the active gas 24, and the signal from source 21 appears amplified at 30. The reflectors 25 and 27 may be diffraction gratings or metallic mesh dichroic reflectors. These reflectors may be incorporated into the pumping laser. Such amplifiers may be used for communications purposes. As further oscillator structure is described, Fig. 3 (not shown), using adjustable resonator mirrors and a flowing active medium. The resonator preferably has a lens attached thereto for focusing, in view of the diffraction induced divergence of the output. A conical horn may also be used. Since the gas is optically pumped, a metal container may be used.
Patent GB-997785-A (GB)
Title: Plastic lipstick casing
IPC: A45D40/06
Filed: 1961-07-13
Abstract: 997,785. Lipstick holders. E. G. HULTGREN. July 13, 1961 [July 20, 1960], No. 25455/61. Heading B8P. In an all-plastics lipstick holder comprising an inner tubular member 11 rotatable within an outer sleeve 22 and a lipstick carrier 14 slidably mounted within the inner member and having a button 18 projecting through a longitudinal slot 19 in the member 11 into a helical groove 23 on the inside surface of the sleeve 22, openings 28 pass through the member 11 to form a vent panel. The inner member 11 has a closed knurled end 12 and is turned relatively to the sleeve to project and retract the lipstick. The openings 28 permit venting of the inner member as the lipstick is moved, thereby allowing oil from the lipstick to evaporate and preventing uncontrolled slipping of the parts. The carrier 14 is apertured at 17 to allow escape of air on filling. In assembling the inner member is inserted into the sleeve until a projection 25 snaps into a groove 24 in the sleeve.
Patent GB-190793-A (GB)
Title: Improvements in connection with telephonic systems, or apparatus, more especially intended for use in mines, and the like
IPC: H04B13/02
Filed: 1921-09-27
Abstract: 190,793. Ellison, M. C. Sept. 27, 1921. Telephone systems and apparatus; thermionic relays.- In a system in which voice currents are amplified at a substation by a valve amplifier, when the receiver is on the switch-hook, a circuit is closed for a sensitive relay adapted on receipt of a calling current to close the circuit of a call bell, whilst when the receiver is removed the valve amplifier is rendered operative. The invention is described as applied to mine telephone systems of leakage and earth return type. Fig. 3 shows the arrangement at a combined transmitting and receiving station, the apparatus being connected across two conductors d, b connected to an earth-plate D and a pipe B respectively. For ringing up a receiving station, the push J is depressed and a direct circuit is completed through an accumulator I, a heavy current thereby being caused to flow over the pipe B to operate a relay K at the receiving station where a bell L is rung. The switch Z at the transmitting station is then placed in the speaking position (as shown) in which the microphone H is connected in series with the battery I across the conductors b, d. At the receiving station the switch Z is thrown to the receiving position in which the terminals X, Y, are connected, and the removal of the receiver N disconnects the calling relay K and completes the filament heating circuit of the valves E, F of the cascade amplifier.
Patent GB-1091908-A (GB)
Title: Sine tables
Inventor: REED JAMES RONALD
IPC: B23Q1/54
Filed: 1964-06-20
Abstract: 1,091,908. Sine tables. RATCLIFFE ENGINEERING CO. Ltd. June 9, 1965 [June 20, 1964], No. 25620/64. Heading B3B. A sine table comprises a base 2, a leaf 4 pivoted to the base 2 about a longitudinal axis 6 and a leaf 8 pivoted to the leaf 4 about a transverse axis 10, the undersides of the leaves being provided with recesses 20, 22 in which are arranged gauging rollers or balls 16, 18. The leaf 8 comprises a magnetic chuck which is moved into on and off positions by a detachable handle 24. The angle between the base 2 and leaf 4 and between the leaves 4 and 8 is set by placing a slip gauge on an anvil 12 or 14. The leaves are locked rods (as at 26) operated by the handle 24.
Patent GB-1148401-A (GB)
Title: Improvements in can bodies
IPC: C09J5/10
Filed: 1966-06-09
Abstract: 1,148,401. Coated container blank. AMERICAN CAN CO. 9 June, 1966 [29 Sept., 1965], No. 25664/66. Heading B2E. A blank for making a tubular sheet metal can body having longitudinally extending lap side seam has a solid organic coating an marginal surface portions which portions are adapted) tol overlap and be secured together to provide the lap side seam, the coating comprising the reaction product obtained by heating together a polyvinyl acetal resin, 1,2-epoxide resin, a phenol-aldehyde resin, and a phosphoric acid addition salt of an aliphatic amine having 3-15 carbon atoms, and an adhesive comprising a linear superpolyamide having an intrinsic viscosity of at least 0.4 adhered to the coating on one of the marginal surface portions. The organic coating may cover the entire surface of both sides of the blank. The blank may have aluminium, low carbon steel, with or without an external plating of aluminium, chromium, nickel or tin, as the metal component. The polyvinyl acetal resin may be polyvinyl formal, acetal, butyral, preferably having a polyvinyl alcohol content of 6 to 22%. The epoxide resin may be in a complex polymeric epoxy hydroxy ether resuiting from the catalyzed reaction of a polyhydric phenol with an excess of an epoxide e.g. epihalohydrins and alkylene oxides, having an epoxide equivalent of 425 to 6,000. The phenol-aldehyde resin may be a methylolphenol resin which is a methylol phenyl ether in which the hydrogen of the hydroxyl group attached to the phenylgroup is substituted by an alkyl, alkenyl or cyclo-alkyl group or by an aralkyl or aralkenyl group, and halogenated derivatives thereof e.g. 1-allyloxy-2, 4,6-trimethylol benzene which may contain the mono- and dimethylol phenyl allylether. The phosphoric acid salts may be ortho, meta and pyrophosphate salts of primary, secondary, and tertiary aliphatic amines. The coating may be applied as a solution or dispersion and afterwards baked. Printing or other decorative coatings may be applied to the organic coating. The superpolyamide adhesive may be polypentamethylene, polyhexamethylene, polydecamethylene, poly-m-phenylene sebacamide, polyhexamethylene, polydecamethylene adipamide, 6-amina-caproic acid polymers, 7-amino-heptanoic acid polymers, 11-amino undecanoic acid polymers, 12-amino-stearic acid polymers. The blank is formed into an open-ended tubular can body by wrapping around a mandrel, heating the adhesive to a semi-fluid, tacky condition, pressing the coated lower surface of the opposite blank margin into contact with the tacky adhesive, and chilling the bonded side seam. Both the upper surface of one margin and the lower surface of the other margin may carry the adhesive such that when the blank is rolled into tubular configuration there will 'be an adhesive-to-adhesive seal in the lap side seam rather than an adhesive to coating seam.
Patent GB-662127-A (GB)
Title: Improvements in or relating to magnetic recording
IPC: G11B5/127
Filed: 1949-10-06
Abstract: 662,127. Magnetic recording apparatus. WESTERN ELECTRIC CO., Inc. Oct: 6, 1949. [Oct. 19, 1948] No. 25715/49. Class 40 (ii). [Also in Group XXXV] An erasing head comprises a laminated core'2 energised by high-frequency windings 1 and having 'spaced pole pieces 3, 4 forming a gap which is filled by alternate magnetic and non- magnetic shims composed of permalloy and beryllium-copper respeetively. 'The multiple gap so formed is as effective as the wide gap normally used, but requires fewer ampereturns of magnetizing force.
Patent GB-843682-A (GB)
Title: Improvements in or relating to freight handling and transporting system
IPC: B66C1/66
Filed: 1956-08-23
Abstract: 843,682. Securing removable freight containers to vehicles. CLARK EQUIPMENT CO. Aug. 23, 1956 [Aug. 30, 1955; April 9, 1956], No. 25758/56. Classes 78 (3) and 78 (4). [Also in Group XXV] Latches securing are movable body to the chassis of a vehicle and automatically released by means operated by a part of a load-handling device, e.g. a fork truck, a straddle truck or a lifting sling, disposed to lift the body from the vehicle are such that the operator can see whether the latches are engaged. In the construction shown in bottom plan in Fig. 2, latching pins 60 urged outwardly by a spring 64 to engage sockets on the chassis are withdrawn by a bell-crank 44, 50 and a linkage 53, 54 when one of the tines 42 of a lift-truck pushes aside a portion 49 of the bell-crank disposed in one of the tunnels 41 for receiving the tines. The latching-pins 60 are also withdrawn when a straddle truck is caused to depress pins 66 carried by a yoke 65 on one of the arms 51 carrying a latching-pin 60. The pins 60 automatically engage the sockets when the body is lowered on to the chassis. In an alternative construction pins similarly disposed to the pins 66 can be engaged by the rear of the lifting carriage of a fork truck so that no mechanism need be disposed for engagement by the tines. The fork truck may be constructed as described in Specification 843,758, which is referred to. Where a container is to be lifted by a crane one of the eyes 140 (Fig. 19) for connection to the lifting sling carries a sliding portion 141 which is raised by the hook engaging it, before the weight of the body is taken by the sling, so pulling a cable 147 lead over pulleys such as 149 on the sides and base of the container to retract latching-pins 157 disposed one at each end of the container. The sockets 80 (Fig. 4) on the chassis for receiving the latching pins may be formed in castings 68 pivoted about axles 68a to retract either inwardly or outwardly to lie flush with the floor of the chassis. A cover 78 (Fig. 5) pivoted at 79 may serve to cover the casting 68 when it is retracted and to abut its lower portion to retain it in the position shown. A slot in the plate 78 permits a hook to be inserted in the hole 80 so that the casting 68 may be raised, raising the plate 78 with it, until the plate 78 falls to the position shown. The casting 80 is formed with an inclined inner surface engaging a member 81 on the container and may have the wedge form shown in Fig. 4 or the more complicated shape shown in Fig. 13, which also shows a pair of latching-pins 110 entering the spaces 112, left between the casting 114 and the co-operating pocket 111 on the body. Resilient bushings may be provided between the latching-pins 60 (Fig. 5) and the sleeves. 82 guiding them, and the sockets 81 may be replaced by bearing-surfaces supported resiliently from the body. Two castings such as 68 may be pivoted at opposite ends of a channel adapted to replace one of the floor planks of the chassis. Specification 843,683 also is referred to.
Patent GB-438545-A (GB)
Title: Improvements relating to tea-pots
IPC: A47G19/20
Filed: 1934-09-07
Abstract: 438,545. Teapots. BOGAN, F. R., 4, Bloomsbury Square, London. Sept. 7, 1934, No. 25782. [Class 129] A teapot has a heat-retaining cover wholly encasing it. The cover is formed in two halves e, e<1> hinged at one side at g and having a fastener h at the other. Slots f, f<1> are made for the handle and spout which are preferably of different sizes so as to ensure that the pot is picked up with the hasp h on the accessible side. The cover may be lined with felt. Feet j<1> are provided on the lower half of the cover.