baber/WOPTO huggingface dataset:
Patent GB-247828-A (GB)
Title: Improvements in feeding mechanism for projection apparatus
IPC: G03B23/10
Filed: 1925-07-09
Abstract: 247,828. Puras y Sierra, A., and Del Rio y Hernandez, F. July 9, 1925. Optical-projection apparatus, applications of; cylinders, prisms, and like elements, rotating.- In optical-projection apparatus the slides 24 are carried by a drum 17 rotated step-by-step by a continuously rotating motor 30 operating through a spring member. The mechanism comprises two pins 51, 52 on a disc 50 which engage slots 21 in the drum flange. The disc 50 is fixed on a shaft 38 to which is attached one end of a spiral spring 41, Fig. 6, the other end of which is connected to a worm wheel 37 loose on the shaft 38 and rotated uniformly by the motor 30. To the wheel 37 is fixed a cam 43, and to the shaft 38 a stop finger 45, the cam and finger both engaging two spring pawls 46, 47. As the wheel 37 rotates it stresses the spring 41 and the cam 43 lifts the pawl 46 or 47, thus releasing the finger 45 and allowing the disc 50 to fly round under the influonce of the spring 41. The opposite pawl 47 or 46 limits the rotation of the finger 45 to half a revolution, and holds it till pushed away in its turn by the cam 43. The slides 24 are removably held in grooves 23 in upstanding bars 22, Figs. 4 and 12, being retained by corrugated rollers 25 each having a slot 26 which can be turned into or out of register with the grooves 23. The lamp 8, reflector 10, and condenser 12 of the optical-projection system are mounted on a hinged side of the casing 1.
Patent GB-828262-A (GB)
Title: Improvements in or relating to swivelling fairleads
Inventor: WHITELOCK EDWARD BARNES
IPC: E02F9/14
Filed: 1957-06-04
Abstract: 828,262. Fairleads. AVELING-BARFORD Ltd. June 2, 1958 [June 4, 1957], No. 17699/57. Class 78 (5). A fairlead for a dragline crane has sheaves 17, 18 carried by frame 15, the shank 12 of which is rotatably carried by fixture 14 mounted on the turntable of the crane, and the fairlead is biased. As shown, sheave 18 is made heavier than sheave 17 so that the fairline tends towards the vertical position.
Patent GB-911512-A (GB)
Title: Improvements relating to apparatus for making discharge tests on terminated specimens
Inventor: MOLE GEORGE
IPC: G01R31/12
Filed: 1960-05-19
Abstract: 911,512. Electric tests. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. Aug. 18, 1961 [May 19, 1960], No. 17700/60. Class 37. Apparatus for detecting electrical discharges in a sample and for discriminating between such discharges and discharges in a termination of the sample, comprises an inductor with terminals for connection of the sample, the termination, and a blocking capacitor, the inductor supplying signals to a filter and amplifier circuit for filtering out the supply frequency and applying the amplified signal to an indicator, the indicating apparatus having a switch connected to alter the signal applied to the indicator to permit discrimination between discharges in the sample and discharges in the termination. In Fig. 2, a tuned circuit comprises the sample Cx, blocking capacitor Cb and inductor L, the output of the inductor being applied to a filter, amplifier and indicator circuit, Fig. 3 (not shown). Capacitors Ct 1  and Ct 2  represent the terminations and these capacitors are in parallel and may be switched across the sample or across the blocking capacitor. The circuit is supplied from a source S of frequency to which the circuit is tuned, and if a discharge takes place a step signal appears at the inductor, the size of the step signal being substantially independent of the position of the switch if it originates in the sample. The amplifier may be wideband or narrow-band and the indicator may be an ammeter or a cathode-ray oscilloscope. The signals received are of the form illustrated in Figs. 6, 7 (not shown). The output signal may also be applied to the grid and cathode of a cathode-ray tube to brighten a section of the display, a switch being provided to select the necessary polarity of signal as illustrated in Figs. 5a, b, c, Figs. 8a, b, c, not shown. The inductor L may be the primary of a transformer.
Patent GB-354913-A (GB)
Title: Improvements in methods of and machines for making welded tubing
IPC: B21C37/08
Filed: 1930-06-10
Abstract: 354,913. Making tubes. JACKSON TUBE CO., Inc., S., 29, Rodney Street, Brooklyn, New York, U.S.A. June 10, 1930, No. 17832. Convention date, June 8, 1929. [Classes 83 (ii) and 83 (iv).] Drawing; angular bending; welding.- Metal tube is formed continuously by drawing strip through a cone 2 the overlapping edge of the tube being electrically welded by electrode rollers 27, 28, Fig. 2, while the tube passes through the groove of support rollers 25, 26. The tube issuing from the cone 2 passes over the mandrel 4 where rollers 8, 9, 10 smooth and consolidate the overlap the mandrel yieldingly supporting the tube at the roll passes by having formed in it spring tongues 14 with hardened inserts 15. The mandrel is supported intermediately by support rollers 19 in a frame between which is a sheave roller 22 in a slot in the mandrel. Near the welding area a second sheave roller 30 in the mandrel supports and holds up the overlapping edges of the tube to the welding rollers 27, 28. The hot welded seam is then smoothed between rolls 32, 33, the roller 33 being mounted on roller bearings in a slot in the mandrel. An external roller supports the mandrel, an internal sheave roller 35 being provided at this point. The mandrel is in sections, pin-jointed at 6, 7.
Patent GB-642758-A (GB)
Title: Improvements in or relating to the framework of articles of furniture
IPC: A47C7/34
Filed: 1948-07-03
Abstract: 642,758. Furniture frames. ETABLISSEMENTS, H. ST.- MAURICE & CIE, and ST.- MAURICE, H. July 3, 1948, No. 17929. [Class 52 (ii)] A frame structure for armchairs, beds, or other furniture comprises the assembly of two forms of rigid frames the number of each frame depending on the frame structure required the assembly being made without the addition of separate connectors such as screws or the like. The first form 1 comprises two members 2, 3 connected .by cross members 4, 5 and the second form 6 comprises a tubular member 7 with bent ends 10, a parallel angle section member 8 the two members being rigidly connected by crossed strips 9. As shown in the case of an arm chair two forms 1 serve as side members and are fitted with arm rests 11, a back member 6 connects the two side members the bent ends 10 taking over the upper ends of the members 2 and projecting pins 12 on the member 8 entering apertures 13 in the members 2. The seat member also formed by form 6 is positioned horizontally the bent ends 10 fitting over the protruding ends 14 of the member 5 and the pins 12 entering the apertures 13 in the member 5. In addition a cross piece 29<SP>1</SP> fits by means of notches 34 at the junction of the members 2 and 5 of the form 1. Seating and back springs carried by frames are secured by hooks 14 on the members 7. Upholstery &c. may be laced in position.
Patent GB-561882-A (GB)
Title: Improvements in roof construction
IPC: E04B7/20
Filed: 1942-12-17
Abstract: 561,882. Roofs. HILLSON, E. Dec. 17, 1942, No. 17947. [Class 20 (iv)] A roof structure comprises a prefabricated metal grille, which is constituted by two sets of spaced rods or bars a, b running at right angles to each other and welded together at their intersections, and to which the slates, tiles or the like d are secured by means of clips e adapted to hook over the horizontal rods or bars a of the grille. Preferably the clips e have a general S-form and pass over the upper edge of an under slate or tile, between the side edges of intermediate slates or tiles and around the bottom edge of an upper slate or tile.
Patent GB-274453-A (GB)
Title: Improvements in sheet feed mechanism having pneumatic suction and blowing devices
IPC: B65H3/08
Filed: 1927-07-06
Abstract: 274,453. Spiess, G. July 17, 1926, [Convention date]. Sheet-separators.-In apparatus for feeding sheets to printing &c. machines by the aid of suction separators 25 and blowing-devices acting on the edges of the sheets in the pile 26, the suction pipes 9 and blowing-pipes 22 are served from a common rotary blower 1, and the suction and blowing actions are controlled by similar valves 11, Fig. 2, with diametrically opposite ports 12 which connect the suction tube 3 intermittently to the suction pipes 9, the valve 11 being rotated through quarters of a revolution by the action of adjustable tappets 17 on rollers 15 on a cross 14 fitted to the stem of the valve. A similar valve operated by tappets 24 controls the air blasts, and these are set to act slightly in front of the suction separators.
Patent GB-852625-A (GB)
Title: Improved liquid flow indicator
IPC: A01J5/01
Filed: 1959-05-26
Abstract: 852,625. Indicating fluid flow. SEABORNE, T. L. May 26, 1959, No. 17983/59. Class 69 (1). In a milk flow indicator having a main milk passage 22 and a by-pass 25, the by-pass being of such a size that it can cope only with the reduced flow of milk at the end of the milking process, the whole of the milk in excess of the by-pass flow is caused to pass through a sight glass 3. The indicator comprises a back plate and a body part 2 which is divided into two chambers 12, 13 by a partition 18. Milk enters the inlet chamber 12 through an aperture 5 and circulates round a central stud 20 in an enlargement 19. Froth collects in the enlargement and is prevented from rising by a nose 26, a baffle 24 and the expanding passage 22 which reduces the flow velocity. Two ports 15, 16 lead from the two chambers to the sight glass so that the whole milk flow in excess of the by-pass flow is caused to pass from the inlet chamber 12 through the sight glass to the outlet chamber 13.
Patent GB-593234-A (GB)
Title: Apparatus for drying grains, grasses, vegetables, roots and the like
IPC: F26B17/26
Filed: 1945-07-16
Abstract: 593,234. Drying grains and grasses. GOODALL, C. July 16, 1945, No. 18158. Addition to 574,158. [Class 34 (ii)] In apparatus of the type described in the parent Specification the reciprocating table a is supported by brackets i connected by links h to supporting pillars g. The brackets i and pillars g are provided with recessed pockets n, o, in which are positioned the special surfaces of the heads &c. for the connecting links h. An adjustable stop p is provided co-operating with projection o to limit the movement of the table under the action of the spring c. A rotary tedder w is provided at the delivery end for effecting discharge of the material.
Patent GB-954079-A (GB)
Title: Epoxy acyloxy silanes
IPC: C07F7/18
Filed: 1961-05-18
Abstract: The invention comprises silanes of the formulae: <FORM:0954079/C3/1> where n is 1 or 2, R is a di- or tri-valent hydrocarbon, halohydrocarbon or oxahydrocarbon radical, the latter containing oxygen as ether or carboxylic ester linkages, a  is 0 or 1, R1 is a monovalent hydrocarbon or halohydrocarbon radical, y is 0, 1 or 2, n+y is 2 or 3 and Ac is an acyl radical containing less than 5 carbon atoms. They may be prepared by (1) addition of an unsaturated epoxy compound to an acetoxy silane Hu R 1y Si (OAc)4-n-y in the presence of a platinium catalyst, or (2) oxidising alkenyl or cycloalkenyl substituted acetoxy silanes with per acids.  A large number of R radicals are listed, including saturated and unsaturated, linear, cyclic, chloro-, fluoro- and brono-substituted radicals. The examples of R 1 also include alkyl, aryl, alkenyl, cycloalkyl, cycloalkenyl, aralkyl and chloro-, bromo-, fluro-and iodo-substituted radicals. The examples describe the preparation, inter alia, of: <FORM:0954079/C3/2> <F\3> <FORM:0954079/C3/3> Uses: in siloxane release coatings; sizing of glass  Specification 920,856 is referred to.
Patent GB-121329-A (GB)
Title: Improvements in Periscopes.
Inventor: MCSHANE HERBERT FRANCIS
IPC: G02B23/08
Filed: 1917-12-08
Abstract: 121,329. McShane, H. F. Dec. 8, 1917. Periscopes comprise mirrors or the like which are, or may be, arranged to face in the same direction horizontally so that a rearward view may be obtained, and an aperture through the lower mirror &c., or through the casing adjacent thereto, through which a forward view may be obtained. As shown, an upper mirror b may be housed in either of two pairs of guides l in a casing a having a hinged door m. The lower mirror c is inserted into the casing through a door n, and the viewing-opening e may be closed by a sliding shutter o. An aperture g and a sighting-frame h having a vertical wire are provided beneath the mirror c so that objects in front of the periscope may be directly viewed. Sighting-wires f in the same plane as the wire of the sighting-frame h may be provided, or sighting-lines may be provided on the mirrors. The casing may be hinged and provided with a snap-fastening k, or may be made in separable parts having tongues and eyes, loops, or the like permitting the parts to be assembled with the upper mirror facing in either direction. In a modification, an aperture may be provided through the lower mirror, the aperture being covered with glass or provided with a tube or a telescope connecting it to an aperture in the rear of the casing.
Patent GB-186722-A (GB)
Title: Improvements in four stroke internal combustion engines
IPC: F02B1/00
Filed: 1921-07-06
Abstract: 186,722. Percival, S., (Sorg, W. A.). July 6, 1921. Channels in cylinders.-The front end of an internal-combustion cylinder is closed and grooves 41 are formed in the cylinder walls, these grooves placing the front end into communication with the power chamber A at the end of each power and suction stroke. Lubricant from the tank E is admitted to the front-end of the cvlinder through a nipple 32, when the piston is on the exhaust or compression stroke. The exhaust passes with the lubricant into the power chamber at the end of the out-stroke.
Patent GB-1386695-A (GB)
Title: Aerosol applicator
IPC: A61L2/22
Filed: 1972-04-20
Abstract: 1386695 Administering medicaments LAAKE OY 20 April 1972 [23 April 1971] 18444/72 Heading A5R [Also in Division Fl] An applicator for the intracutaneous or epicutaneous application of a concentrate onto or into skin or epithel, comprises a pressurised can 1 of which the nozzle 4 is formed with a cavity 6 which defines in use with the area of skin to be treated, a closed cavity in which the concentrate is maintained at an overpressure produced by opening the valve 3. The nozzle 4 has a sharp rim 5, and is guided by ridges 9,when the can 1 is moved towards the area to be treated to open the valve 3.
Patent GB-573902-A (GB)
Title: Improvements in the art of breadmaking
IPC: A21D2/04
Filed: 1942-12-30
Abstract: In the preparation of a bread improver comprising a relatively small proportion, e.g., .2 per cent. by weight, of sodium, potassium, ammonium or calcium chlorite and an edible starchy material as a carrier, the starchy material is dried and mixed with the other ingredients so that the total moisture content does not substantially exceed 9 per cent. by weight.  The carrier may be corn, rice, tapioca or other starch or wheat, rye or other cereal flour.  The chlorites may be prepared as described in Specifications 460,374 and 460,375, [both in Group III].  Yeast foods, such as sodium and ammonium chlorides and calcium sulphate, and an additional oxidising agent, such as a persulphate, iodate or bromate, may also be included in the mixture.  The mixture may be made either acid or alkaline in reaction as by the addition of buffer salts, such as mixtures of phosphates. About .5 per cent. by weight of the mixture may be employed in the flour used for breadmaking.
Patent GB-318694-A (GB)
Title: Improvements in coffee driers and like apparatus
IPC: F26B25/00
Filed: 1928-06-27
Abstract: 318,694. Watson, F. W., Bentall, E. E., and Bingham, G. C. June 27, 1928. Sampling granular material. - A sampling device for apparatus for drying coffee, &c., comprises a receptacle mounted in an opening in the rotary shell and adapted to collect a sample, discharge it outwards, and subsequently to receive and return it while the shell rotates. In one form the device comprises a tube A, Fig. 1. having a ring bearing a, inclined to its axis, and mounted to rotate in a housing a<1> secured to the shell B. A plate c, pivoted at a<3>, has one end formed as a closure for the tube and the other c<1> as a lip extension. In another form concentric tubes D, E, Fig. 3, are mounted in the shell. the outer tube being closed at one end and secured to the shell by a plate d. A pin e<1> on the plate d engages a slot in a disc e secured to the plate E, which is rotated to bring openings M in the tubes into or out of alignment. The device shown in Fig. 5 comprises a drum Hand disc G which are rotatably mounted on a pin h, and extend within the shell. A passage h<1> in the drum is adapted to coincide, when desired, with a hole g in the disc. Another device comprises a receptacle L, Fig. 7, hinged at l, and normally held within the shell by a spring l<1>, the opening in the shell being closed by the receptacle. Finger pieces l<2> are provided for withdrawing the receptacle, the opening being closed by the extension l<3> when the receptacle is withdrawn.
Patent GB-1111952-A (GB)
Title: New compositions of carbon black and polyacrylonitrile and method for their preparation
IPC: D01F1/04
Filed: 1966-04-28
Abstract: The invention comprises threads and fibres consisting essentially of 65 to 90% by weight of an acrylonitrile polymer and 10 to 35% by weight of carbon black distributed throughout the polymer in the form of particles of diameter less than 0.5 m . The term "acrylonitrile polymer" is defined as acrylonitrile homopolymer or random or block copolymers, graft copolymers or mixtures of polymers containing at least 95% by weight of acrylonitrile units and up to 5% by weight of comonomer units. The threads and fibres are prepared by a process which comprises adsorbing acrylonitrile, with or without a monomer copolymerizable therewith, on carbon black, polymerizing the adsorbed material in aqueous solution, if necessary removing the product from excess water, then dissolving it in a solvent for the polymer formed, and then forming threads or fibres from the solution by a known method of spinning.  In the example acrylonitrile is polymerized in the presence of aqueous sulphuric acid, sodium bisulphite and potassium chlorate.
Patent GB-913056-A (GB)
Title: Improvements in devices for sampling liquids at a depth below the surface
Inventor: GRAY DAVID ALFRED
IPC: E21B49/08
Filed: 1958-06-12
Abstract: 913,056. Sampling liquids. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 11, 1959 [June 12, 1958], No. 18768/58. Class 106 (5). A device for sampling liquids at a depth below the surface, for example, in bore holes or wells, comprises a cylindrical chamber 2 into which are screwed a nose cap 1 and a valve body 3, the valve body having a pair of flat or part-cylindrical valves 14 and 15 which control ports 9, 10 and have heads 16 which are adapted to be struck by a messenger 30 which is allowed to slide down the suspension cable 25 when the sampler has been lowered to a desired depth. The valves are surrounded by an apertured sleeve 19 which is secured to the valve body by a bolt 23 on which the thimble 24 of the suspension cable can be mounted and each valve is pressed against the valve body by a spring 20 adjustable by a grub screw 28. One of the ducts 11 leading from the valve ports is extended to near the bottom of the chamber by a tube 13 and, if it is desired to have part of the sample free from contamination by the walls of the chamber, this tube may be sealed to, or form part of, a sterile inner container. The messenger 31 has a split collet 32 which screws into the upper end 31 and also has a radial slit by which the messenger can be introduced laterally on to the cable 25.
Patent GB-581655-A (GB)
Title: Improvements in means for supplying preheated air to boiler furnaces
IPC: F23L9/00
Filed: 1944-10-02
Abstract: 581,655. Supplying air for combustion. YARROW, SIR H. E. Oct. 2, 1944, No. 18793. [Class 51 (i)] In a water tube boiler furnace, the gases from the furnace are drawn by a fan k through a secondary air heater g, an economizer h and primary air heater j. A fan l supplies air to the primary air heater and through a duct m to beneath the grate a. Part of the air from the duct m is delivered by a fan o to the secondary air heater g from which it passes to ducts p at the front and rear of the furnace and thence under the control of valves q to flexible pipes r connected to nozzles s mounted on trunnions. Means are provided for adjusting the direction of the nozzles to deliver the secondary air to the part of the furnace desired.
Patent GB-238368-A (GB)
Title: Transmission mechanism for feeders connected in a gang for mixing machines
IPC: B01F15/00
Filed: 1924-08-07
Abstract: 238,368. Draver, E. R. Aug. 7, 1924. Mixing in definite proportions; driving-mechanism. - An apparatus for proportionately feeding different fine or granular materials comprises a battery of feeding devices. each constituting a separate machine unit, a single rotatable driving-mechanism operating an oscillating device extending to all the devices, and independently variable means connecting each feeding device to the oscillating means, and means for varying the degree of oscillation. The feeding hoppers 3 are provided with paddles mounted on shafts 4 driven by pawls on radial arms 7 operated by arms 8 connected to a swing ing arm 10 operated by a connection 34 to a rocking arm 33 on a shaft 30 extending to all the feeding hoppers. The arms 8 are connected to the arm 10 by means of a head 9 which can be adjusted towards and from the pivoting point of the arm by a screw; the connections 34 are provided with notches engaging studs 34<a> on the arms 33, whereby each feeder may be thrown. out of operation. The rock shaft 30 is operated by a crank 31 connected to a similar adjustable oscillating arm 25 operated by a rod 24 from a crank shaft 22. In a modification the rock shaft is operated from a friction disc variable-speed. gear.
Patent GB-876937-A (GB)
Title: Gasketing material
IPC: F16J15/12
Filed: 1958-06-12
Abstract: 876,937. Rigid laminates. VICTOR MANUFACTURING & GASKET CO. June 12, 1958 [Aug. 16, 1957], No. 18854/58. Class 140. [Also in Group XXVI] Laminated material suitable for making gaskets for internal combustion engine cylinders comprises a metal plate, for example, of steel or tin-plated steel, formed with hollow projections 20, 21, Fig. 5, covered with elastomeric material secured by adhesion. The projections are in rows, preferably staggered, those in successive rows being formed in opposite sides of the plate as at 11, 13, Fig. 2; they may be stabbed through at their apices, in which case the layers of elastomeric material 15, 16 are bonded together through the apertures. The elastomeric material preferably comprises an inert or heat-conducting filler such as asbestos fibres, metal powder, or barytes, bonded with an elastomer, preferably a butadiene-acrylonitrile copolymer, but alternatives are polychloroprene, polybutadiene-styrene, poly-tetrafluoro- or -trifluorethylene, or a polyacrylic, siloxane, or epoxy resin. The elastomeric material may be applied as separate layers or as a dough, being consolidated subsequently by passing through heated calendar rolls. A thermosetting, preferably phenolic-based adhesive is used. In the case of curable materials, curing may be completed by engine heat during use of the product as a cylinder gasket. For such use the product is coated with a graphite or other composition non-adherent to the cylinder and head, and is normally cut to shape without edge-sealing, but sealing rings may be fitted around the combustion openings, the elastomeric material being reduced in thickness to accommodate them. The metal core, and the metal powder filler if provided are stated to assist diffusion of engine heat. Specification 876,936 is referred to.