baber/WOPTO huggingface dataset:
Patent GB-582146-A (GB)
Title: Electrical oscillation generator
IPC: H03K3/78
Filed: 1944-02-04
Abstract: 582,146. valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 4, 1944, No. 2135. Convention date, Nov. 30, 1942. [Class 40 (v)] In a circuit for producing bursts of oscillations 54, a resonant circuit 40 couples the anode and control grid circuits of a pentode 30, the suppressor grid being biassed to cut off the anode current. A rectangular pulse from the generator 10 raises the potential of the suppressor grid enabling the valve to oscillate, the coupling between the anode and grid circuits and/or the gain of the valve being adjusted to maintain the amplitude of the oscillations substantially constant. A positive synchronising pulse applied to the grid of gas-filled valve 14, fires it, forming a pulse 12 on the cathode, which raises the potential of the suppressor grid. The oscillations 54 may be used for calibrating an oscillograph, and may be squared and differentiated and applied directly or passed through an over-biassed amplifier to give pulses of one sign.
Patent GB-1336701-A (GB)
Title: Roasting bag
IPC: A47J36/02
Filed: 1972-01-17
Abstract: 1336701 Roasting bag M M LEVIN 17 Jan 1972 [21 July 1971] 2211/72 Heading A4D [Also in Divisions B5, B8] A container for use in roasting food products, comprises an inner layer of paper material 12 bonded to an outer-layer of aluminium foil 14 and a plurality of spaced slits (30) Fig. 4 (not shown) extending through both layers. The slits form longitudinal staggered rows on one side of the container. A method of roasting a food product comprises placing the product in the container, sealing the or each end of the container, placing the container in an oven and heating the oven. The container is placed in a pan with the perforated side lowermost to allow fat and juice to pass out of the bag.
Patent GB-342881-A (GB)
Title: Drill for dental purposes
IPC: A61C3/02
Filed: 1930-01-22
Abstract: 342,881. Dental drills. FUNKE, AKT.- GES., GEB., 167, Oberbilker Allee, Dusseldorf, Germany. Jan. 22, 1930, No. 2216. Convention date, Nov. 5, 1929. [Class 81 (ii).] In a dental drill of the kind comprising several cutting teeth arranged over the periphery of the drill and in which two of the cutters pass over the apex of the tool to form a single cutting edge, the said edge is made so as to protrude in axial direction beyond the surface of the other cutters. In the form shown the drill is formed with cutting teeth 1, and with two teeth 2 forming a continuous cutting edge 3 passing over the apex of the tool and projecting axially beyond the surface of rotation on which the remaining cutting edges lie. The centre point M<1> of the radius 4 of the apex portions of the cutters 1 may for instance be rearwardly displaced along the axis of the drill relative to the centre M of the radius 5 of the cutter 3. The grooves 6 at the side of the cutter 3 are larger than the other grooves. The edges of all the blades are equidistant from the drill centre at the sides of the drill so that when working at an angle the drill functions as a milling cutter. The drill may be of any usual shapes such as oval, pear-shaped, button shaped, conical or the like.
Patent GB-584878-A (GB)
Title: Improvements in or relating to hammers for impact breaking or crushing machines
IPC: B02C13/28
Filed: 1945-01-31
Abstract: 584,878. Hammers for impact breakers. PATTINSON, G. H. Jan. 31, 1945, No. 2449. [Class 59] A reversible hammer head for an impact breaker has T-shaped extensions which co-operate with T-shaped apertures in the hammer holder to detachably connect, and securely retain in position, head and holder. The head 1 has T-shaped extensions 2, 3 which co-operate with apertures 5, 6 in the holder 4 so that the crossbars of the extensions 2, 3 bear on surfaces 8, 9 of the holder 4. The parts 5a, 6a of the apertures 5, 6 are then plugged and the extensions bolted to the plugs. Specification 475,430 is referred to.
Patent GB-113949-A (GB)
Title: Improvements in Liquid-fuel Meters for Internal Combustion Engines.
Inventor: BOWDEN WILLIAM
IPC: G01F3/38
Filed: 1917-03-27
Abstract: 113,949. Bowden, W. March 27, 1917. Liquid - meters. - In a liquid-meter for use with internalcombustion engines of the kind comprising a measuring chamber 1, a receiving chamber 2, and valves 5, 6 operated by the cores 12, 13 of solenoids 14, 15, the circuits of the solenoids are opened and closed by switch members 21, 28 carried by floats 18, 26, t h e arrangement being such that the circuits are opened and closed only when the switch members are immersed. The floats work in chambers 17, 25, the upper chamber being connected by an air pipe 32 to the reversing chamber 2, so that the filling of the measuring chamber is governed by the drawing-off from the chamber 2, and the valves are held in their raised positions by a magnet 40, or in their closed positions by magnetic attraction between them and their seats.
Patent GB-832738-A (GB)
Title: A method of and apparatus for removing flash from moulded articles
IPC: H01R43/18
Filed: 1958-01-24
Abstract: 832,738. Removing flash from moulded articles. BENDIX AVIATION CORPORATION. Jan. 24, 1958 [Jan. 31. 1957], No. 2489/58. Class 87(2). Flash from a moulded article of rubber or other material decomposable by heat is partially decomposed by heating it, as by a stream of hot gas, whilst shielding at least that part of the article that would otherwise be the most strongly heated. In removing flash 16, Fig. 5, from each of the flanges 12 within passages 11 in a rubber grommet 10, the grommet is placed on a plate 24 carried by an arm 19, Fig. 4, having tubular metal bosses 25 over which the ends of the passages 11 are engaged. The arm 19 is pivotably mounted on a table 20 for movement about a vertical axis, so that grommet 10 may be passed over a slot 30, through which a stream of hot combustion products is passed from a burner 26 to decompose partially the flash 16. The plate 24 and tubes 25 shield the lower part of the grommet 10 from the hot gases. From the slot 30 the grommet is passed over a slot 34 through which a jet of cold air is passed to blow the particles of heat-treated flash through the passages 11. The speed at which the plate 24 is moved may be controlled automatically. Each passage 11 and flange 12 is moulded by by using a core rod 13 and a tubular core 18 as shown in Fig. 1.
Patent GB-1491362-A (GB)
Title: Single crystals based on stabilised zirconia or hafnia
IPC: C30B11/00
Filed: 1975-06-11
Abstract: 1491362 Stabilized ZrO 2  or HfO 2  crystals FIZICHE INST IM PN LEBEDEVA AKAD NAUK SSSR 21 Jan 1975 2511/75 Heading ClA Single crystals based on ZrO 2  or HfO 2  are stabilized with Y 2 O 3 , the components preferably being present in the molar proportions ZrO 2 / HfO 2 :Y 2 O 3  of 90-95:10-5. The crystals may further contain 0À01-5% by weight of transition metal oxides and/or rare earth metal oxides to provide coloration. The crystals are suitably made by drawing from a melt by the Stockbarger method. The crystals may be used as artificial precious stones, lenses or laser elements.
Patent GB-947081-A (GB)
Title: Improved means for securing bushes or the like
Inventor: PERKINS JOHN EWART
IPC: F16C33/08
Filed: 1961-01-21
Abstract: 947,081. Assembling force fits; jointing by forging. WESTLAND AIRCRAFT Ltd. Feb. 2, 1962 [Jan. 21, 1961], No. 2514/61. Headings B3H and B3U. Means of securing cylindrical members, e.g. bushes, bearings, sleeves or the like in the bores into which they are fitted, is characterized in that the surface of said member mating with said bore is provided with one or more recesses and one or more projections whereby in fitting said member in said bore obstructing material thereof is formed into said recess or recesses by progression of said projection or projections. In an embodiment, an annular step 3 and an annular groove 4 is formed in the shank 1 of a headed drill bush 2. When the drill bush is forced into a plain bore in a template the step 3 displaces material of the template adjacent the bore into the groove 4 and thus locks the bush in position.
Patent GB-920893-A (GB)
Title: Regulator for controlling consumption from an upright wall of silage
IPC: A01K1/10
Filed: 1961-01-23
Abstract: 920,893. Animal feeding devices; silage. L. B. THWAITES. Jan. 9, 1962 [Jan. 23, 1961], No. 2523/61. Classes 5(1) and 5(2). A device for controlling the consumption by cattle, of silage from a stack 16, comprises a bar 10 rotatable in housings 11, 12 pivotally supported on uprights 13, 14. Each upright is provided with a foot 19 adapted to be driven into the stack so that the bar may be advanced as the silage is consumed.
Patent GB-1491972-A (GB)
Title: Safety belt locking devices
IPC: B60R22/48
Filed: 1975-01-21
Abstract: 1491972 Safety belt actuation A FOHL 21 Jan 1975 [21 Jan 1974] 2544/75 Heading A3V In an automatic safety belt a control disc is arrested by electromagnetic forces, and this initiates locking of the reel. An electromagnet 2 is energised by an acceleration or deceleration sensor, and due to chisel like points on the solenoid 5 and feromagnetic bodies 11 on the disc 8 the intense field at their edges causes the disc to stop: the disc is axially movable to engage other detents. In another embodiment (Figures 6, 7 not shown) a horse shoe magnet embraces part of the periphery of a paramagnetic disc, and the induced eddy currents in the disc cause it to stop. In this embodiment relative rotation between the disc and a ratchet (24) causes a pawl to engage the ratchet in a known manner.
Patent GB-494754-A (GB)
Title: Method and apparatus for electrically measuring the thermal conductivity of gases
IPC: G01N27/18
Filed: 1937-01-29
Abstract: <PICT:0494754/III/1> The composition of a gas stream is measured in respect of its thermal conductivity by dividing the stream in two paths and passing each component to a separate electrical cell, the change in gas composition affecting one cell before the other.  In the Figure, gas entering at 8 passes in paths 9, 10 of unequal lengths to cells 6, 7 containing heating wires 12, 13 forming two arms of a Wheatstone bridge, a valve V permitting regulation of gas velocity.  Components may be added to the gas, and these may be separated out in known manner, the intermittent deflections on meter 11 being a measure of the change in constituents of secondary and tertiary gases.  The Specification as open to inspection under Sect. 91 describes the use of the above apparatus for determining the amount of carbon dioxide in exhaust gases, the CO2 content being withdrawn from one path so that a comparison may be effected between a washed exhaust gas with and without carbon dioxide, a deflection proportional to the amount of CO2 being obtained. This subject-matter does not appear in the Specification as accepted.
Patent GB-1336802-A (GB)
Title: Cephalosporin complexes and process for producing cephalosporin antibiotics therefrom
IPC: C07D501/60
Filed: 1972-01-19
Abstract: 1336802 Cephalosporin solvates ELI LILLY & CO 19 Jan 1972 [20 Jan 1971] 2657/72 Heading C2A Novel cephalosporin complexes of N,N- dimethylformamide (DMF) or N,N-dimethylacetamide (DMA) with a cephalosporin acid (which is defined as being any compound having the cephem ring structure with a carboxylic acid group attached in the 4-position of the dihydrothiazine ring) are prepared by: (a) mixing DMF or DMA with an ester or salt thereof of the cephalosporin acid in which the ester group is removable by treatment with a reducing agent in an acidic medium; (b) treating the mixture with a reducing agent in acidic medium to remove the ester group; and (c) adding a basic substance to raise the pH sufficiently to precipitate the desired complex. The preferred cephalosporin acids have the formula wherein R<SP>1</SP> is hydrogen or an acyl group of formula in which B is -NH 2  and W is phenyl 3- or 4- hydroxyphenyl, 4 - (α - amino - C 1  to C 3  alkyl)- phenyl, 4 - chlorophenyl, 3 - chloro- or 3,5- dichloro - 4 - hydroxyphenyl, 2- or 3 - thienyl, or sydnonyl; and A is hydrogen, -O-CO- (C 1  to C 4  alkyl), -O-CO- (C 4  to C 7  cycloalkyl), or -X-Z where X is O or S and Z is C 1  to C 4  alkyl, 1,3,4-thiadiazol-2-yl, or 1-methyl- 1H - tetrazol - 5 - yl. When the ester of the cephalosporin acid contains a free amino group, this is preferably blocked, before carrying out step (a) above, with a blocking group which is removable by acidic hydrolysis, subsequent removal of this blocking group being effected by the acidic medium used in step (b). The cephalosporin acid complex from step (c) may be purified by (d) dissolution in acidified DMF or DMA which may contain up to 40% by volume of a miscible polar liquid (e.g. water) and then (e) adding a base to reprecipitate the purified complex. The complex may be converted to the free cephalosporin acid by (f) dissolving in acidified water, heating to 40 to 70 C. and then (g) adding a base to bring the solution to the isoelectric pH of the cephalosporin, when the latter precipitates in the zwitterion form. The process (a)-(g) provides a means for obtaining pure cephalosporin acids from their impure solutions. Pharmaceutical compositions comprise an antibiotic cephalosporin, that has been prepared by the procedure (a) to (g) above, together with a suitable carrier.
Patent GB-588200-A (GB)
Title: Improvements in holders for marking-material
IPC: B43K23/00
Filed: 1945-02-03
Abstract: 588,200. Holders for marking- material. BROWSE, S. C. Feb. 3, 1945, No. 2757. Convention date, Feb. 11, 1944, [Class 146 (iii)] Marking-material, such as soapstone, is held in a clip or holder adapted to slide along a casing B, the lug 15 on the holder projecting through a longitudinal slot 12 in the casing, and a pocket clip 17 being formed at the open end of the casing and adapted to press against the marking-material when the latter is pushed into operative position. The holder and lug 15 may be made from one strip of material, and the clip 17 may be formed from an extension of the casing B.
Patent GB-510245-A (GB)
Title: Improvements in or relating to air separators for separating air from liquid in the pipe lines of liquid pumps
IPC: F04D9/00
Filed: 1938-01-28
Abstract: 510,245. Centrifugal pumps. SULZER FRERES SOC. ANON. Jan. 28, 1938, No. 2799. Convention date, March 25, 1937. [Class 110 (i)] [Also in Groups II and III] Air is separated from liquid in a separator 2 having a main chamber within which is an ante-chamber 6 opening at its upper end into the main chamber, and having an axis substantially vertical about which the entering liquid is caused to rotate. The separator is shown inserted in the pipe-line 4 of a centrifugal pump 1. One end of the curved wall 25 of the ante-chamber terminates in a tangential wall 18<1> which merges into the wall of the supply pipe, and the other end of the wall 25 has a bevelled surface 18 which directs entering water towards the part 18<1>. This construction causes the water to rotate in the ante-chamber 6 and to flow over the top of the wall 25 to the outlet 22. The air moves towards the middle of the ante-chamber and rises to the top of the main chamber. A valve 8 operated by a float prevents any water from passing with discharging air from the separator to the pipe 16 by permitting air to flow from the atmosphere through the pipe 17 to the pipe 16 when little air is separated from the water. When the apparatus is used for separating vapours, or gases other than air, the pipe 17 is connected to the delivery side of the de-aerating pump drawing gas from the pipe 16 so that the gas is circulated through the pipes 17, 16. The wall 26 of the main chamber may be curved instead of straight as shown in Fig. 3. In a modification, the liquid inlet and outlet openings are adjacent to each other in the base of the separator, and the inlet is provided with guide blades which rotate the liquid entering the ante-chamber.
Patent GB-544966-A (GB)
Title: Improvements in and relating to separable fasteners of the stud and socket type
IPC: A44B11/02
Filed: 1941-03-03
Abstract: 544,966. Stud-and-socket fasteners. UNITEDCARR FASTENER CORPORATION. March 3, 1941, No. 2823. Convention date, March 26, 1940. [Class 44] Stud and socket fasteners, particularly described as applied to the covering 4 of a vacuumoperated top of a motor vehicle, are provided with means laterally adjacent to the fasteners which serves to effect automatic separation of the fasteners when they are pulled laterally, as when the cover 4 is moved to the left, Fig. 2, during movement of the top to the rear of the vehicle in the folding-back operation. As shown, the stud comprises a tubular shank 19 loosely mounted in an aperture in the base of a cuplike attachment member 7 and held in central position by a spring 21 bearing against the base of the cup and a flange 19a at the upper end of the shank. A cup-like stud head 16 has a peripheral bead 14 adapted to snap into engagement with a spring 26 in the socket-member 25 which is secured to cover 4 by a rivet 27 extending from a cap 28. The head has a metal filling- piece 17 between which and an inturned flange at the base of the head the flange 19a of the shank is secured. Spring 21 is strong enough to hold the stud head projected above the cup 7 during the fastening operation, but allows the stud to rock when cover 4 is pulled laterally. The stud is retained in the cup by an external flange 20. The cup 7 has an integral flange 6 secured to the body 2 by rivets 13 and provided with an embossed arcuate upstanding rib 23 adjacent one side of the cup, the rib having an inclined cam surface 24 up which the socket rides when cover 4 is pulled to the left, this upward movement effecting separation of stud and socket. A modification is described in which the shank is pivotally mounted in cup 7 on a transverse pin and spring 21 is replaced by a filling of resilient material such as sponge rubber on which the head of the stud rests.
Patent GB-1212064-A (GB)
Title: Improvements in or relating to aerosol devices
IPC: B65D83/14
Filed: 1968-01-19
Abstract: 1,212,064. Push-button dispensers. J. R. GEIGY S.A. 19 Jan., 1968 [27 Jan., 1967], No. 2978/68. Heading B2F. A push-button dispenser for finely divided distribution of a product in a liquid phase or powder form by means of a propellant gas 7 contained in a reservoir 6 which is accommodated in an outer container 2 containing the active agent 1 to be dispensed and which carries a valve controlled by the push-button 19 ensuring, at rest, the obturation of a triple circuit, the said triple circuit comprising the flow path of the propellant and that of the active agent towards the spray nozzle 21 and the flow path connecting the interior of the container to the atmosphere, the said valve having two flexible annular joints 11, 12 through which pass the push-button spindle 17 in which are provided ducts 26, 27 for the passage of the active agent and propellant respectively towards the spray nozzle, characterised in that the valve spindle is urged resiliently towards the closure position by a plug 46 accommodated in the neck of the reservoir 6 and which has, on the side facing the said valve, a recess whose annular edge comes to bear in the closure position of the device, against the surface, facing the reservoir, of that one of the flexible gaskets which controls the passage of the propellant. The two joints may suitably be separated by a rigid ring 13 against which they are pressed at their outer periphery, the bore of the ring being greater than that of the joints to permit flexion under the action of the push-button spindle 17. In a preferred embodiment one joint controls both the passage of the propellant and that of the active agent, while the second joint controls the admission of atmospheric air.
Patent GB-249481-A (GB)
Title: Improvements in and relating to platens for pot presses
IPC: B30B9/04
Filed: 1926-02-03
Abstract: 249,481. Carver, F. S. March 23, 1925, [Convention date]. Oil - presses. - Platens of pot presses are made with removable stop lugs, whereby any platen is readily removed, and the platens may be identical and interchangeable, the lugs being made of different lengths to engage the respective steps. In the press shown the platens 22 are provided with screwed-in stop lugs 26 adapted to engage the steps 18 of the racks 16 secured to the press base 10 and cross-band 12. The corners of the platens are bored eccentrically so that while sliding freely up and down the press columns 14 they may easily be tipped. The racks 16 are made with recesses 20 between the steps 18 to facilitate unscrewing and screwing-in of the lugs 26 prior to removal and after insertion of a single platen.
Patent GB-475999-A (GB)
Title: Improvements in devices for effecting image analysis applicable to television
IPC: H04N3/08
Filed: 1937-02-03
Abstract: 475,999. Television. WILSON, R. G., and SILVER, W. D. Feb. 3, 1937, No. 3185. [Class 40 (iii)] Relates to scanning devices wherein the image or screen is scanned in two or more contiguous sections, each section being scanned during one revolution of a revolving scanning device such as a mirror drum. According to the invention, a fixed reflecting or refracting member and one or more similar but movable members are so arranged to operate in conjunction with the mirror drum or equivalent, that the fixed member takes part in the scanning of one section, and the movable member or members co-operate successively with the mirror drum &c. to effect the scanning of the remaining sections in turn, so that the whole area of the image or screen is scanned in two or more revolutions of the revolving scanning device. Fig. 4 shows a construction in a receiver in which a mirror 1 is fixed adjacent to a mirror drum 9 and coacts therewith so that light from a modulated source 11, reflected as shown, scans half the screen 12 (i.e. from A to B) during one revolution of the drum. The adjacent half (B to C) is scanned during the next revolution by causing a mirror 3, placed at such an angle as to effect the required displacement of the reflected rays 10c, to cover the mirror 1. The mirror 3, of semicircular form, is mounted on a shaft 4, which rotates synchronously with but at half the speed of the mirror drum 9. A modification as described, in which the screen is scanned in three sections, two movable mirrors similar to the mirror 3 being provided. Specification 362,208 is referred to.