baber/WOPTO huggingface dataset:
Patent GB-1221341-A (GB)
Title: Improvements in or relating to test equipment for glow modulation tubes and to phototelegraphic receivers
IPC: H04B10/50
Filed: 1968-02-08
Abstract: 1,221,341. Copying by scanning. NIPPON ELECTRIC CO. Ltd. 8 Feb., 1968 [9 Feb., 1967], No. 6217/68. Heading H4F. [Also in Division G1] The glow modulation tube of a picture transmission system receiver is tested by testing the relation between the discharge current of the tube and its brightness. The current through tube 1 generates a voltage V 1  across resistor R 1  and a current in phototransistor 2 generates a voltage V 2  across resistor R 2 . V 1  and V 2  are compared at 4 and any difference appear as a voltage V 3 . V 3  may be applied to a threshold circuit to light a lamp when the tube 1 needs replacing, the comparator 4 being rebalanced for each new tube fitted. The picture signal is isolated from transistor 3 during the test.
Patent GB-657408-A (GB)
Title: Improvements in clamps for clamping shuttering in the construction of concrete columns and the like
IPC: E04G13/02
Filed: 1949-03-08
Abstract: 657,408. Clamps for column shuttering. SPEIGHT, W. H. March 8, 1949, No. 6306. [Class 20(ii)] Clamps for embracing column shuttering each comprises a main tube 1, Fig. 1, welded at one end to a plate 2 to which is also welded a short length of tube 3 spaced parallelly from the tube 1 so as to receive therebetween the main tube 1a of an adjoining clamp which is clamped against the shuttering 8 by a screw 4 in the plate 2, a collar 5, adjustably secured on the other end of the main tube, being drawn against the main tube 1b and the parallel tube 1c of the next clamp on tightening the screw 4, as shown in Fig. 4. Instead of the plate 2 and separate tube portion 3, the main tube at one end may be bent round on itself, the tightening screw passing through the tube 'at the bend.
Patent GB-828243-A (GB)
Title: Improvements in or relating to nozzles
IPC: B05B1/30
Filed: 1957-02-25
Abstract: 828,243. Spray-producers. FOERSTNER, W., [trading as TOTAL KOMMANDIT-GESELLSCHAFT FOERSTNER & CO.]. Feb. 25, 1957 [Feb. 25, 1956], No. 6323/57. Class 69 (3). A nozzle comprises concentric outer and inner flow passages each containing an adjustable twist-imparting device, e.g. a pair of flexible blades extending between a pair of rings. As shown, a pipe 1 forming part of a spray-gun has a tube 4 located within it by radial ribs 3 permitting axial but not rotary movement. An inner passage, defined by the tube 4, accommodates a twist-imparting device comprising flexible blades 6 extending between rings 7 and 8, spokes 28 and hubs 9 and 10, Fig. 6, the ring 7 being secured against rotation in the tube 4 by screws 11 and the angle of the blades 6 being adjustable by turning a wheel 13 secured to the hub 10. An outer passage, between the pipe 1 and tube 4, accommodates a twist-imparting device comprising flexible blades 26 extending between rings 24 and 27, the ring 27 being secured against rotary movement and the ring 24 being carried by a rotatable nozzle mouthpiece 21 by which the angle of the blades 26 can be adjusted. Liquid flow through the passages is controlled by a needle, having a head 14 and shank 15, operated by a lever system 16, 17, 18. On withdrawing the needle the inner passage is opened and the needle head then engages the hub 9 and retracts the tube 4 to open the outer passage. On moving the needle forward to close the passages the needle head first engages a mouthpiece 5 and then pushes it into engagement with the mouthpiece 21.
Patent GB-1001674-A (GB)
Title: Process for the manufacture of aromatic nitriles using vanadium oxide catalysts
IPC: C07C255/51
Filed: 1963-02-15
Abstract: In a process for the manufacture of aromatic nitriles, an alkyl-substituted aromatic hydrocarbon, NH3 and air are reacted in gaseous phase in the presence of V2O5 supported on a natural aluminium and/or magnesium silicate. The hydrocarbons used may have one or two nucleii, have an alkyl group of 1-4 C, e.g. toluene, xylenes, hemellitol, pseudocumene, mesitylene, durene, ethyl benzene, methyl-ethyl benzenes, cumene, paracymene, a - or b -methyl- or ethyl-naphthalene.  Examples describe the preparation of toluonitrile, terephthalodinitrile and isophthalodinitrile.
Patent GB-565196-A (GB)
Title: Doors
IPC: E06B3/82
Filed: 1943-04-27
Abstract: 565,196. Doors. HITCHINS, W. G. April 27, 1943, No. 6639. [Class 20 (iii)] The side frame members of a door of the flush type are of T-section and the table portion 6 of the T projects above the stem member by an amount equal to the combined thickness of the board 7 and finishing veneer 8.
Patent GB-608283-A (GB)
Title: Method of producing a template for the transfer of patterns onto a web of fabric
IPC: B41F15/34
Filed: 1946-03-04
Abstract: 608,283. Marking fabrics. HANDELS- & FABRIKSBOLAGET HJALMAR ANDREN, and JAHN, J. S. March 4, 1946, No. 6692. [Class 100(ii)] A template which is provided with perforations following the outlines of garment patterns and is to be used in machines for applying powder to a web of fabric by suction to mark the fabric for cutting up, is made from a paper or web provided adjacent to one longitudinal edge 1 with longitudinal lines 4 parallel to the edge and so spaced that the distance between each line and the opposite edge 2 of the web corresponds to a standard fabric width, and, between the lines 4 and the edge 2, with longitudinal lines 3 the distance between which is at least approximately the pitch of the usual fabric patterns, e.g. stripes or chequered designs, pattern pieces being placed on the web with the aid of the guide lines, the outlines being drawn on the web and holes punched along the lines so drawn. The template is used in a machine wherein the fabric is laid on a perforated support, the template is carried by a roller mounted in a slide carrying a powder container, and suction is generated under the support to suck powder through the holes in the template on to the fabric. The free end of the template is fixed so that movement of the slide rolls out the template; transverse lines 5 are provided spaced apart the distance between the point of fixing and the point where powder-applying commences. The lines 3-5 may be produced in connection with the finishing of the paper web in the paper mill; the lines 4 may be a different colour from the others.
Patent GB-609052-A (GB)
Title: Improvements in or relating to gramophone pick-ups
IPC: H04R9/12
Filed: 1946-03-05
Abstract: 609,052. Sound-reproducing devices. COOPER, R. M. C. March 5, 1946, Nos. 6757 and 9588. [Class 40 (iv)] In a gramophone pickup an elongated coil 1 is fixed inside a cylindrical tube 5 to which a stylus holder 13 is secured. The tube is rotatably mounted in a bore in a bearing member 19 mounted between the pole tips of the magnet system. Resilient means 41 surround the holder 13 in the aperture provided for it in the bearing member. Outwardly projecting pivot pins 23 and 24 are provided on end stoppers in tube 5 which engage with jewelled bearings. The tube 5 is provided at the middle of its length with an annular enlargement co-operating with the bore in the bearing member.
Patent GB-384500-A (GB)
Title: Improvements in or relating to wick burners for lamps and stoves
IPC: F23D3/00
Filed: 1932-03-22
Abstract: 384,500. Wick burners. CRICHTON, D., 13, Renfrew Road, Kennington, London. March 22, 1932, No. 6789. [Class 75 (i).] A burner having a central draught wick tube 6 and an inverted conical deflector, 4 disposed centrally within the wick tube, is provided with an air guide in the form of a truncated conical member 1 enclosing the wick tube and having an inturned upper end and a number of air apertures 3 in its lower part. The deflector 4 is supported from a spider 11 within the wick tube and is formed with a flared upper rim 12.
Patent GB-811497-A (GB)
Title: Improvements in and relating to vehicle parking meters
Inventor: WHITE PERCY LIONEL
IPC: G07F17/14
Filed: 1955-03-08
Abstract: 811,497. Parking meters. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. March 6, 1956 [March 8, 1955], No. 6817/55. Class 27. A parking meter comprises means released by coin-freed mechanism for recording on a ticket or token, by ink markings, piercing, punching or similar methods, an indication of the time of issue of the ticket or the time of expiry of the permitted parking period, the ticket preferably having adhesive on its face so that it can be stuck to the inside of the windscreen of a car. A strip of stiff paper or cardboard on a spool 2 is guided by rollers 6 and 7 to a masked delivery opening '9 and is fed by a pair of wheels 8 having pins engaging in apertures along the edge of the strip. A clock 18 is slidable on guides 19 above the run of the strip between the rollers 6, 7 and can be raised and lowered by an arm 23 which is pivoted at 24, and is normally prevented from moving by a pivoted rod 33 locked by the coin mechanism 34. After coinage has been inserted, the knob 27 on the arm 23 can be raised so that the clock is lowered and an element 22 driven by the clock makes an impression of an hour hand and minute hand on a clock face already printed on the strip. The knob 27 is then moved down to raise the clock again and, through a pivoted link 30, to cause a bowl 31 to rotate the ratchet wheel 32 and wheels 8 sufficiently to bring the impressed part of the strip through the opening 9. The strip may be perforated to facilitate tearing off the tickets or, instead of issuing tickets from the continuous strip, separate tickets may be stored in the meter. The tickets may be issued in duplicate and any wording, such as parking regulations, may be applied before the strips or separate tickets are placed in the meter or may be impressed at the same time as the time impression. A clock 36 with its face visible at the front of the casing 1 may be provided.
Patent GB-381462-A (GB)
Title: Improvements in or relating to bacon slicing machines and the like
IPC: B26D7/01
Filed: 1932-03-08
Abstract: 381,462. Slicing-machines. LAMBERT, F. T., 49, Park Road, East Hill, Wandsworth, London. March 8, 1932, No. 6930. [Class 28 (ii).] In a last-slice holder which is automatically given angular movements to compensate for an initial taper in the piece being sliced, the angular movements are imparted by a ratchet-operated screw carried by the frame supporting the last-slice holder. As shown in plan in Fig. 2, the last-slice holder h is pivoted at h<3> to a frame e held on the usual clamp uprights b and secured by a locking-device g. The frame e is provided with a slot e<1> disposed perpendicularly'to the face of the frame. A cubical or rectangular nut k, Fig. 3, is engaged by the screw j and is guided in the slot e<1>, the nut being connected by a link l, which acts as a cover for the slot e<1>, to the holder h. The screw j is rotated by a pawl o on a spring- returned rocking-lever p which oscillates between limit stops and is actuated for the working stroke by a rod r slidable in a boss r<1> on the frame. A stop s is secured in the path of the end of the rod r, and the rod r is made telescopic with a spring action to prevent damage when the holder is restored to its parallel position and can move no farther. The angular movement of the holder is regulated by a ratchet shroud actuated by the handle u which works over and is locked to a graduated quadrant v. Tension or compression springs w prevent the holder from chattering, and springs for the same purpose may be arranged around the pivot pin h<3> or between the holder h and the frame e. Also a frictional damper may be provided for this purpose, the damper comprising a rod pivoted to the holder h and slidable in a relatively tight, split, adjustable, pivoted, stationary bush. Alternatively the bush may be toothed to engage a tooth or teeth on the rod. The link l may be connected to the end of the holder h. According to the Provisional Specification, the holder h may be angularly moved by the motion of a pendulum which reverses as the reciprocating table reverses. Specification 266,819, [Class 28 (ii), Kitchen and like appliances &c.], is referred to.
Patent GB-194139-A (GB)
Title: Combination chair and ladder
IPC: A47C12/02
Filed: 1922-03-09
Abstract: 194,139. Kirkaldy, J., and Rennie, H. H. March 9, 1922. Ladders. - A combined step-ladder and chair has the seat 4 of the chair pivoted to the front legs 5 and pins 6 at the rear end of the seat are adapted to slide in grooves 7 in the chair back 1, which is integral with the rear legs and is provided with rings 2. Pivoted stays 3 connect the front and rear legs. When the seat 4 is moved about its pivots to bring its rear edge to the upper end of the chair back, a step-ladder is formed.
Patent GB-668974-A (GB)
Title: Improvements in amplifier circuit
IPC: H03F1/08
Filed: 1950-03-21
Abstract: 668,974. Valve amplifying circuits. DU MONT LABORATORIES, Inc., A. B. March 21, 1950 [May 27, 1949], No. 7039/50. Class 40 (vi). In an amplifier in which the anode circuit is resonant at a desired frequency and also at a higher frequency, an inductor is provided in the grid lead resonant with the interelectrode capacities at a frequency between the desired and higher frequencies, thereby avoiding parasitic oscillation. In a grounded grid amplifier, Fig. 1, a very small inductor 28, which may be a sheet-metal strip, is connected between the grid of valve 17 and earth. As a result, the resonance of the grid circuit at very high frequencies is lowered, Fig. 4 (not shown), and is arranged to fall between the desired frequency to which the anode circuit is tuned, Fig. 3 (not shown), and the higher frequency at which resonance of the lead inductance and stray capacities takes place. A shield 29 and one side of the heater are connected to the grid, a capacitor 32 being employed for connection of the other side. The input circuit 15 is arranged to be broadly resonant over the band to be received while the outputcircuit comprising inductors 23, 24 and 25 forms a tunable band-pass filter.
Patent GB-635813-A (GB)
Title: Tier-bed that may be folded together
IPC: A47C17/50
Filed: 1948-03-08
Abstract: 635,813. Bedsteads. DOBEL, P. H. A. A. March 8, 1948, No. 7148. [Class 52 (ii)] In a tier bed which may be folded into a cupboard or rack the upper bed 6 is pivoted at 8 near the rear wall 2 of the cupboard &c. while the lower bed 7 is pivoted at 9 near the front of the cupboard &c. the free sides of the beds being interconnected by a detachable two-part link 11, 11a so that the upper bed 6 may be folded downwardly and the lower bed 7 upwardly either simultaneously or separately to bring the bed surfaces, to which the bed clothes may be secured, facing one another. The two-part link 11, 11a is provided with a spring catch 10 at the joint to keep the links 11, 11a in alignment when the beds are in operative positions. The lower bed is provided with a foot which may be an extension of the link 11a.
Patent GB-1049584-A (GB)
Title: Improvements in or relating to laminates
IPC: B32B15/08
Filed: 1964-02-21
Abstract: 1,049,584. Laminates and laminating. TRIPOINT INDUSTRIES Inc. Feb. 21, 1964 [March 29, 1963], No. 7339/64. Heading B5N. A sheet of polytetrafluoroethylene (Fig. 1, not shown) is bonded to a metal substrate by interposing a thin film of a copolymer of fluorinated ethylene and fluorinated propylene, applying a uniform pressure of at least 25 p.s.i., heating to at least 625‹ F. for at least five seconds, cooling, e.g. to no higher than 500‹ F., whilst maintaining the pressure, and finally cooling, the cooling steps being effective in 30 seconds to 1¢ minutes. The metal may be faced on one side as shown, or on both sides, with P.T.F.E., or a single sheet of P.T.F.E. may be faced on both sides with metal. The metals usable may be aluminium, iron, steel, brass or copper, may be rigid or flexible and flat, curved or otherwise shaped. To make a flexible product a lay-up of components 16 (Fig. 7) is fed over a roller 17 around a heated roller 13 on which it is pressed by a spring-tensioned stainless steel endless belt 10 which passes around rollers 11, 12, 15. The roller 15 and a small roller 14 are cooled and the laminate 18 so cooled is led off over a roller 19.
Patent GB-677632-A (GB)
Title: Improvements in or relating to expansion valves for use in refrigerators
Inventor: WOLF LOUIS JOEL
IPC: F25B41/06
Filed: 1948-03-10
Abstract: 677,632. Valves. REFRIGERATOR COMPONENTS, Ltd. March 10, 1949 [March 10, 1948], No. 7399/48. Class 135. A pressure-regulating valve suitable for use as an expansion valve in a refrigerator comprises a body 1 having a diaphragm chamber 2, an open-ended skirt 7 coaxial with the chamber 2, inlet and outlet branches 11, 9 opening into the skirt, and a detachable valve unit comprising a plug 14 screwed into the skirt and a valve assembly wholly accommodated in the plug, the arrangement permitting removal of the valve assembly without disturbing pipe connections and the diaphragm. The valve shown is of the type in which the pressure of an adjustable spring 20 and the evaporator or outlet pressure acting through a passage 27 on the lower side of the diaphragm tending to close the valve are balanced by a spring 5 and a fluid pressure acting on the upper side of the diaphragm, the fluid pressure varying according to the temperature of the refrigerant at the outlet of the evaporator. The upper end of the plug 14 limits the downward movement of the diaphragm and has a bore in which slides a cap 25 engaging a valveactuating pin 26, the valve member being a ball 19 coacting with a seat 18. Resilient sealing rings 28, 29 are provided in grooves in the plug 14. A filter 12 is fitted in the inlet 11. In a modification, the upper side of the diaphragm is open to atmosphere and the spring above the diaphragm is adjustable. The valve member is of the needle type and. the inlet passage is rearranged to reduce the overall height of the valve.
Patent GB-213104-A (GB)
Title: A multiple tool holder for use on turning-lathes
IPC: B23B29/30
Filed: 1923-03-15
Abstract: 213,104. Dewsall, J. F. March 15, 1923. Tool-holders.- In a multiple tool-holder for lathes, the tools c are mounted in spaced holes b in a head a conical at f which fits into a taper recess in a shank g. The tools are clamped by means of balls e located in holes d coacting with a spring washer i and draw-bolt h, the latter being prevented from rotation by a screw y, and drawn up to clamp the tools by means of a nut x.
Patent GB-361764-A (GB)
Title: Interchangeable heel pad
IPC: A43B21/37
Filed: 1931-03-11
Abstract: 361,764. Boot &c. protectors. HAMMER, C., 14, Dammtorstrasse, Hamburg, Germany. March 11, 1931, No. 7505. [Class 17 (iii).] A detachable heel pad is secured to a plate 10 formed with a longitudinal slot 11 provided with lateral notches 12. The permanent heel carries a block 4 and a spring 6 secured to the block near its rear end and provided at its free end with a latch 9. To position the pad the slot 1 is engaged over the block and spring and the pad slid forwardly. Cam surfaces 13 at the sides of the slot depress the spring until the notches 12 reach the latch 9, when this snaps into the notches. The heel may be removed after first depressing the spring, its forward end being accessible from the breast surface. A guide pin 8 is provided for the spring. A rubber pad may be secured to the plate 10 by first making cuts 17 of the shape shown in the plate, depressing the cut out portions, which remain connected with the plate, and vulcanizing the pad with the depressed parts embedded therein.
Patent GB-646524-A (GB)
Title: The manufacture of bodies composed predominantly of carbon
Inventor: HILLIARD ALFRED
IPC: C04B35/52
Filed: 1948-03-11
Abstract: Size graded coke particles are wet mixed with aluminous cement pressed to shape and dried.  Cement comprises limestone, bauxite and iron pyrites (as a flux), and prevents oxidation of the coke at high temperatures.  As an additional protection a slip of 2 parts ground alumina, 1 part "Ciment Fondu" (Registered Trade Mark) and water is prepared and the dried refractory dipped therein.
Patent GB-1496865-A (GB)
Title: Stabilized chlorine-containing resin composition
IPC: C08L27/00
Filed: 1976-02-25
Abstract: 1496865 Stabilizing chlorine-containing resins SUMITOMO CHEMICAL CO Ltd 25 Feb 1976 [26 Feb 1975] 07531/76 Heading C3P Chlorine-containing resins are stabilized with 0À03 to 10 parts by weight per 100 parts of the resins of an epoxy novolac of formula where R is H or C 1-4  alkyl ortho or para to the glycidyloxy group and n is 5 to 15. The compositions may contain conventional stabilizers and other additives. Examples describe compositions comprising polyvinyl chloride, the epoxy novolac compound prepared by reacting epichlorohydrin with the novolac prepared by condensing o-cresol and formaldehyde, calcium/ zinc soaps, tribasic lead sulphate, dioctyl tin maleate and a dioctyl tin sulphur-containing stabilizer.
Patent GB-975965-A (GB)
Title: Lubricating oil composition
IPC: C07C43/13
Filed: 1962-02-27
Abstract: A synthetic lubricating oil composition comprises a base oil comprising at least 40 wt. per cent of an ester lubricating oil, from 1.5-5.0 wt. per cent, based on the base oil, of an aromatic amine antioxidant, and 0.5-5.0 wt. per cent of a copolymer of at least one unsaturated ester of a C2-20 aliphatic alcohol and a carboxylic acid with either 2-N-vinyl pyrrolidene or maleic anhydride. Many types of ester lubricating oils are described including dicarboxylic acid diesters, fully esterified glycols and polyglycols, full esters of polyhydric alcohols (e.g. T.M.P.), and complex esters, and these esters may be blended with glycol ethers or polyglycol ethers to give a mixed base oil.  Many examples of these esters and ethers are given.  The amine antioxidants include phenothiazine, phenyl-a -naphthylamine and dioctyl diphenylamine amongst others.  The copolymer additives are also extensively exemplified and include a mixed fumarate/vinyl acetate/maleic anhydride copolymer, and copolymers available commercially under the Trade Name "Acryloid." Other additives which may be present include chlorinated bi- and poly-phenyls, half esters or tetrabasic aromatic acids such as pyromellitic and prehnitic acids, dimethyl silicene and methyl phenyl silicane polymers, and tricresyl phosphate.
Patent GB-1389061-A (GB)
Title: Process and apparatus for surface treatment of materials
IPC: G21K5/10
Filed: 1972-02-18
Abstract: 1389061 Sterilization ENERGY SCIENCES INC 18 Feb 1972 [7 June 1971] 7660/72 Heading A2D [Also in Divisions B8 C3 and H1] A moving line of articles 7 or strip material is irradiated in a gaseous atmosphere with a uniform large area beam of 50-200 KEV electrons, the energy loss of the emitted beam before impingement on the articles or strip being less than 10%. The low energy electrons dissipate a high proportion of their energy in the surface layer of the target and produce little X-radiation, this permits the use of relatively thin lead shields 9. In an aseptic packaging system containers 7 are moved on a conveyor belt 8 through a packaging zone 4 in air or nitrogen. A d.c. or pulsed beam is produced using large area cold cathodes. The potential is provided by a capacitor system 1 charged by a transformer 2 and switched by a triggered gap 3. The containers are first sterilized by a electron beam source A which may be lowered into them and then filled from a retractable spout 3' sterilized by beam sources B. Lids sterilized by a beam source C are added. The sources are sequentially excited by a pulse generator 1' via a switch S' synchronised with other packaging operations. Sterile conditions are maintained using particle filtration with zone 4 above atmospheric pressure; by passing incoming air through the spout 3' to be sterilized by source B; by the use of an inert or an-aerobic gas blanket in which ozone is generated by X-rays; or by using xenon which readily emits UV radiation. Sterilized strip material may be formed into a tube for use in "Tetrapack" (Registered Trade Mark) systems. Sterile and pasteurised material in paper, plastic or glass containers may be irradiated.