baber/WOPTO huggingface dataset:
Patent GB-690961-A (GB)
Title: Improvements in or relating to mirrors for ophthalmoscopes, retinoscopes and like optical instruments
IPC: A61B3/12
Filed: 1950-12-18
Abstract: 690,961. Sight-testing apparatus. KEELER, C. H. Nov. 12, 1951 [Dec. 18, 1950], No. 30810/50. Class 97 (i). In a mirror device for an ophthalmoscope or like optical instrument comprising a transparent plate having a silvered surface for reflecting light to the patient's eye, and an aperture in said surface for transmitting light reflected by the patient's eye into that of the observer, to prevent "flare" due to dust deposited on the aperture, the plate has a thickened portion in register therewith and has for the emergence of the transmitted light, a polished exit surface which is substantially displaced from the silvered reflecting surface. As shown, the plate 23 has a silvered surface 25 apertured at 26 to receive the beam 21 reflected by the patient's eye and has cemented thereto a glass prism 27 having an exit surface 29 remote from the aperture 26 and so not illuminated by the direct beam falling on that aperture. The remaining surfaces 30, 31 and 34 of the prism are blackened. A modified prism in the form of a parallepiped is described. Prism and plate may be moulded integrally, the reflecting silvering being provided on the front surface of the plate.
Patent GB-1197790-A (GB)
Title: Oxidation of Normal Butane
Inventor: SUGERMAN GERALD
IPC: C07C51/215
Filed: 1967-07-04
Abstract: 1,197,790. Oxidation of n-butane. HALCON INTERNATIONAL Inc. 4 July, 1967 [8 July, 1966], No. 30810/67. Heading C2C. [Also in Division B1] n-Butane is oxidized to acetic acid and byproducts such as formic acid, in the liquid phase with molecular oxygen in the presence of an organic solvent and a catalyst comprising vanadium and iron or cobalt. The medium is preferably acetic acid and a temperature of 125‹ C. to 200‹ C. and pressure 500 to 1200 p.s.i.g. is used with a ratio of 0.01 to 100 parts of vanadium to 1 part by weight of iron or cobalt. The catalyst may be added as soluble salts such as oxides, carbonates, chlorides, sulphates, acetates, octoates, stearates, and naphthenates or as metal complexes such as acetonates of vanadium, cobalt and iron. Examples describe continuous and batch processes.
Patent GB-617690-A (GB)
Title: Improvements relating to hinges
IPC: E05D3/02
Filed: 1946-10-16
Abstract: 617,690. Hinges. STERNER, B. Oct. 16, 1946. No. 30852. [Class 65 (ii)] In a hinge comprising leaves 1 and 2 connected by a hinge pin 7 engaging sockets 3, 4, 5 and 6, each leaf is formed at or near one end with a portion which is thicker than the remaining portion of the leaf, and the sockets are so arranged that the thinner portions overlap while the thicker portions project respectively above and below the ends of the opposite leaves. As shown the leaves are die-cast, the thicker portion of leaf 1 being defined by ribs 9 and 10, and that of leaf 2 by ribs 11 and 12. In a modification the leaves are of angular shape. In further modifications the leaves are formed by bending a suitably shaped blank and are connected by two hinged pins.
Patent GB-1436735-A (GB)
Title: Storage device for optical associative memory
IPC: G11C13/04
Filed: 1973-06-28
Abstract: 1436735 Magnetic storage arrangements HONEYWELL INFORMATION SYSTEMS ITALIA SpA 28 June 1973 [28 June 1972] 30887/73 Heading H3B [Also in Division G4] An optical associative storage device consists of two portions each having a plurality of regions comprising magnetic bubble shift registers in the regions of one of which is stored one bit of a word and in the regions of the other is stored its inverse, the regions being selectively illuminated in accordance with the binary values of a descriptor word to perform an associative search. In one embodiment in which data may be recorded and read out double magnetic bubble shift registers, one of which 60, 60<SP>1</SP> is shown in Fig. 6 are used, plain polarized light making the bubbles appear either as transparent spots in an opaque field or vice versa for detection by photoelements. Bubbles are entered into the first stage 67, 67<SP>1</SP> of one or other of the shift registers by initially de-energizing loop 62 and negatively energizing loop 63 so that the bubbles move from loop 62 to 63 and expands. A strong positive current pulse is then set to loop 64 (exclosed by loop 63) so that the bubble divides and one of the two bubbles so formed is returned to loop 62 by a negative current signal. The other bubble is selectively moved to the upper or lower loop of double loop 65 in accordance with the direction of current applied to terminal 79. An array of such double registers in an orthoferrite plate (75, Fig. 8, not shown) is positioned between a polarizing sheet (74) and an analysing sheet 76) the plate having an opaque material covering its surface with transparent disc portions adjacent the storage locations of the loop. Pairs of photo-emitters (91, 91<SP>1</SP>, 92, 92<SP>1</SP>, 93, 93<SP>1</SP>) are selectively enabled in accordance with a descriptor word, the light emerging from the registers being focused using a "fly eye" lens arrangement (96) on to a screen (97) supporting photosensitive elements (101- 105). Photo-emitters (81, 81<SP>1</SP>, 82, 82<SP>1</SP>, 83, 83<SP>1</SP>) read out the data emerging from the last register stages (66, 66<SP>1</SP>) to permit checking of the stored data.
Patent GB-825863-A (GB)
Title: Methods of and apparatus for extruding thermoplastics
Inventor: BECK ERICH
IPC: B29C48/395
Filed: 1956-10-11
Abstract: 825,863. Extrusion machines. ALPINE AKTIENGESELLSCHAFT MASCHINENFA13RIK EISENGIESSEREI. Oct. 11, 1956 [Oct. 18, 1955; Nov. 7, 1955], No. 30978/56. Class 87(2). A method of plasticizing and extruding a granular or powdery thermoplastic material under conditions of constant temperature, viscosity and pressure, wherein the heat required to plasticize the material is obtained by frictional work on the material, comprises feeding the material to a screw, rotating in a cylinder at a constant peripheral speed of at least 0À4 metre/sec. and having an adjustable throttle at its discharge end, the rate of feed being constant and less than the theoretical delivery capacity of the screw, the constant processing conditions being automatically maintained by utilising the screw as a sensitive control element which absorbs from a driving motor only sufficient energy to convert to the heat required for the constant conditions. An adjustable feeding device 1 feeds the material to a screw 6 in a cylinder 4 which is longitudinally adjustable by means of bolts 21 to vary a throttle 18 formed between the end of the screw and the cylinder. The ends of the screw and throttle may have longitudinal grooves 24, 26 and a heating coil (for starting the process) may surround the head 17. The screw, Fig. 4 (not shown), may have a cooling channel and the interior of the cylinder may have helical channels. In place of the adjustable feeding device 1 a member Fig. 5 (not shown), may be threaded over the input end of the screw to restrict its capacity, or the screw threads in this area may have a lesser capacity.
Patent GB-1142977-A (GB)
Title: Lens stabilization arrangement
IPC: G02B27/64
Filed: 1966-07-11
Abstract: 1,142,977. Gun sight. BELL & HOWELL CO. 11 July, 1966 [12 July, 1965], No. 31001/66. Heading F3C. [Also in Divisions G1 and G2] A lens 12 is stabilized against vibrations, to steady the line of sight of cameras, telescopes, field glasses, gun sights or other optical apparatus, by mounting it on a rotor 14 which is pivotally connected to a rotary gimbal suspension 46, 72, so that the rotor 14 and lens 12 are spun about axis 18 at the same speed as the gimbal suspension 46, 72, but are capable of pivotal movement with respect thereto. As shown, a lens housing 22 containing the objective lens of a cine camera has the cylinder 46 rotatably mounted thereon by bearings 42, 44 and driven by motor 82 through friction drive 54, 58. A gimbal ring 72 is pivotally mounted on cylinder 46 about axis (21), Fig. 2a (not shown), and pivotally supports, about axis 20, the rotor 14. The optical axis 18, and gimbal axes 20, (21) intersect at 16 which is the centre of curvature of the outer surface of lens 12. When the camera vibrates, the axis of lens 12 tends to remain fixed in space and thus moves relative to an adjacent lens 8 to provide a variable prism arrangement which tends to compensate for such movement. When the camera is moved continuously in one direction, however, such as in panning, the friction at the gimbal pivots causes the rotor to follow the camera movements. The friction at the pivots may be made adjustable, Fig. 6 (not shown).
Patent GB-331456-A (GB)
Title: A two-edged safety razor blade
IPC: B26B21/56
Filed: 1929-10-12
Abstract: 331,456. Weiss, P. Oct. 12, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 14, 1929]. Razors, safety. In a twoedged hollow ground blade of flexible material, for use in a clamped-blade safety razor with curved cover and combined plates, the width of the hollow ground portion d is at least five times the thickness of the central ridge c so that the blade can be bent by applying clamping pressure. The holes in the blade and comb-plate are rectangular, the cover-plate pins being of rectangular section, and the blade can be shifted laterally between the cover-and comb-plates to permit use after reduction in width. Further to facilitate this, the curvature of the ridge-accommodating part of the plates is somewhat widened.
Patent GB-1460471-A (GB)
Title: 5h-1-benzopyrano 4,3-c- pyridines
IPC: C07C39/367
Filed: 1974-07-12
Abstract: 1460471 Benzopyrano[4,3-c]pyridines ABBOTT LABORATORIES 12 July 1974 [13 July 1973 8 April 1974] 31075/74 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable salts, wherein R 1  is C 1-6  alkyl; R 2  is C 1-6  alkyl substituted by C 3-7  cycloalkyl, or C 1-20  alkyl, or Ph-C 1-10 -alkyl (in which Ph may contain up to 3 of halogen, CF 3  and C 1-6  alkyl substituents); R 3  is OH, acyloxy, up to C 6  alkoxy, alkenyloxy or alkynyloxy, or R 7 R 8 N-C 1-8  alkyl-COO, where R 7  and R 8  are each H or C 1-6  alkyl, or NR 7 R 8  forms a saturated heterocyclic group (as defined in the Specification). The compounds where R 3  = OH are prepared by dehydrogenation of the 1,2,3,4-tetrahydro-analogue (with simultaneous hydrogenolysis of a 2-benzyl group if present), and may then be etherified or esterified. Therapeutic compositions having analgesic, anti-anxiety and anti-depressant activity comprise compounds of the above formula, and may be administered orally, parenterally or rectally.
Patent GB-843026-A (GB)
Title: Improvements in or relating to gas fires
IPC: F24C3/04
Filed: 1957-10-04
Abstract: 843,026. Air heaters. MAIN Ltd., R. & A., and ADAM, A. J. Oct. 6, 1958 [Oct. 4, 1957], No. 31202/57. Class 64(3) A heat exchanger in which convected air is heated by combustion gases and particularly for use with a gas fire comprises a hollow metal body portion through which the hot gases flow, and over which flows the air to be heated, the said body being cast around a plurality of sheet metal fins projecting from the surface of the body The body and fins are preferably of aluminium or aluminium alloy. The fins may extend through the wall of the hollow body into the gas and air streams as shown in Fig. 5 or separate fins may extend on opposite sides of the said wall as shown in Fig. 8. As applied to a gas fire, e.g. of the kind described in Specification 783,127, the hollow member has flanges 16, 17 at its lower end for attachment to the casing portion (not shown) supporting the firebrick back of the gas fire and is shaped at its upper end to provide a passage 19 for connecting to a flue (not shown). The body member may, as shown, comprise two finned members 10, 11 of channel section bolted and sealed together or it may comprise one finned member of channel section, the open side of which is closed by a sheet metal wall.
Patent GB-1487153-A (GB)
Title: Mechanisms for converting a linear movement to an alternating rotational movement
IPC: F16H25/18
Filed: 1975-07-25
Abstract: 1487153 Linkwork KEELER BRASS CO 25 July 1975 31229/75 Heading F2K A mechanism 20 for converting linear movement to alternating part-rotary movement comprises a reciprocatory plunger rod 30, linearly movable between first and second positions and having a plastics pin 60 transversely slidably carried in the rod 30 for alternate engagement with a pair of cam tracks 52, 53 arranged one each side of the rod 30 in a fixed tubular cam member 50, whereby during reciprocation of the rod 30 the rod 30 is partrotated in alternate directions. Each cam track 52, 53 is arranged with a ramp 54, along one track edge for part-rotation, via the pin 60, of the rod 30, as the rod 30 is linearly moved in one direction (Fig. 5) and (Figs. 7 to 11, not shown), and a straight track edge 55 which the cam pin 60 follows without turning the rod 30 as the rod 30 linearly returns to its starting position, the end 56 of the straight track 55 being formed to transversely move the pin 60 out of the cam track 52 and through the rod 30 into engagement with the opposite cam track 53 (Figs. 12 to 15, not shown) whereby as the rod 30 is again linearly reciprocated the rod 30 is now part-rotated in the opposite direction, the alternate part-rotation being regularly effected at the end of each reciprocation by the cam track change over portion 56 which automatically moves the pin into alternate engagement with the two opposite cam tracks 52, 53. As shown, the rod 30 forms the armature of a solenoid the stator 21 of which carries the usual coil 22 and is enlarged at 21b to form a housing in which the cam 50 is fixed by screws 51, the rod 30 being linearly reciprocated by intermittent energization of the solenoid and the opposing action of a return spring 40. In an alternative embodiment of Figs. 16 to 18 (not shown) the solenoid unit is replaced by a vacuum motor in which the rod 30 is connected, for reciprocation, to a flexible diaphragm. In each arrangement, the rod 30 is formed at its outer free end with a flattened portion 32 which is slidably engaged in a portion 19a, 19b of a member 13 connected to a door or flap 10 whereby alternate part-rotation of the rod 30 alternately opens and closes the door or flap 10, the solenoid stator 21, or vacuum housing, being secured fast at 17, 18, 23 to the door frame 11. The mechanism may be used to operate furnace doors, automobile vent windows and heating and air-conditioning duct doors.
Patent GB-520268-A (GB)
Title: Stencil cards for use in addressing machines
IPC: B41L47/06
Filed: 1938-10-28
Abstract: 520,268. Filing papers. ELLIOTT, H. P. Oct. 28, 1938, No. 31253. Convention date, Sept. 26. [Class 146 (i)] [Also in Group XVI] An addressing- machine stencil card comprises a frame 12 having an addressprinting part 22 and a recessed face portion adapted to receive a removable record sheet 26. The frame 12 comprises a thin sheet 10 sandwiched between thick front and back sheets 13, 14 provided with window openings 16 to expose the sheet 10 which has a window opening 20 over which an address stencil sheet 22 is secured. The recess for the record sheet is formed by cutting an opening in the front sheet 13. Curved leaf springs 32 removably hold the record sheet in position and have pointed ends 34 adapted to be forced between the sheets 10, 13 or to enter shallow pockets previously formed by separating the sheets. The record sheet has a part 28 for a copy of the address and columns for lists of records; the back of the sheet may also be utilized for record purposes. The combined thickness of the record sheet and the springs is less than the depth of the recess.
Patent GB-629783-A (GB)
Title: Improvements in or relating to heating stoves
IPC: F24C13/00
Filed: 1947-11-27
Abstract: 629,783. Heating stoves. SMITH & WELLSTOOD, Ltd., and BELL, R. Nov. 27, 1947, No. 31403. [Class 126] In a heating stove of the type in which a boiler is incorporated in the back of the firebox the opening to the flue being behind the boiler, accessibility to the flue is provided by an aperture in the back of the firebox opposite the flue. As shown the firebrick back 6 of the firebox 2 of the stove 1 has formed therein an aperture 5 closable by means of a plug 7 thereby providing access to the flue opening 4. In a modification in which the bottom of the boiler 3 is below the level of the bottom of the flue the aperture 5 is formed in the boiler. The plug may be of firebrick, cast iron, or other heat resisting material.
Patent GB-465743-A (GB)
Title: Improvements in the form of ships' hulls
IPC: B63B1/06
Filed: 1935-11-13
Abstract: 465,743. Ships' hulls. SCHNEIDER, E. Nov. 13, 1935, No. 31428. Convention date, Nov. 13, 1934. [Class 113 (ii)] Relates to hulls in which the under-water surface from the cut-water to the main section is a helical surface the successive bow crosssections being straight lines which converge at the point 0. Instead of continuing the bow sections 1-9 above the main water line as continuations of the under water cross-sections, they are bent inwards as shown, the deviation from the straight line being greatest at the bows and dying away as the main cross-section is reached.
Patent GB-1137305-A (GB)
Title: Dummy shuttle
IPC: D03J5/00
Filed: 1967-07-07
Abstract: 1,137,305. Dummy shuttle. ADOLPH SAURER Ltd. 7 July, 1967 [18 Aug., 1966], No. 31454/67. Heading DIE. A shuttle for inserting a loop of weft into the shed from the external supply has a duct 5 running through its whole length; the free end of the weft loop lies in the duct and is kept straight by the flow of air when the shuttle is picked.
Patent GB-1085189-A (GB)
Title: Lid fastening for autoclave
Inventor: TAUBER EBERHARD
IPC: B01J3/03
Filed: 1966-07-13
Abstract: 1,085,189. Pressure-resisting doors. GERMANIA CHEMIEANLAGENUND APPARATEBAU KARL-MARX-STADT. July 13, 1966, No. 31496/66. Heading F2P. Wedges 8 and counterwedges 9 which secure the lid 2 of a pressure vessel 1 are disposed in cylindrical recesses 6 formed between the lid and the wall of the vessel and are tightened by bolts 3 distributed around the wall of the vessel. The compression of pairs of dished springs 14 is limited by bushes 12 situated under the nuts 15, and collars 10 on the counterwedges 9 extend into grooves 11 in the lid. A washer 17 of the same material as that used for the vessel lining 16 is situated between the lid and a sealing ring 4.
Patent GB-1002057-A (GB)
Title: Sea-water resisting steel
IPC: C22C38/18
Filed: 1964-08-04
Abstract: A steel resistant to corrosion by sea water has the following percentage composition: <TABS:1002057/C6-C7/1>
Patent GB-520845-A (GB)
Title: Improvements in and relating to lighting fittings
IPC: F21S13/00
Filed: 1938-11-01
Abstract: 520,845. Lighting fittings. GENERAL ELECTRIC CO., Ltd., and DURRANT, D. W. Nov. 1, 1938, No. 31599. [Class 75 (ii)] A lighting fitting suitable for use in departmental stores comprises a bell-shaped globe 1 having its upper portion etched to allow diffused light to issue from the source 6 and its lower portion clear to allow unobstructed light to pass to a bowl reflector 3 supported by the out-turned rim 2 of the globe 1. The reflector may be formed of translucent glass thinly coated on its upper surface with opal white glass or of metal so as to reflect light on to the ceilings for indirect illumination and may be coloured or decorated by sandblasting, etching, silvering &c.
Patent GB-700627-A (GB)
Title: Electromagnetic relays
Inventor: HALL RICHARD ERNEST
IPC: H01H50/34
Filed: 1950-12-29
Abstract: 700,627. Electromagnetic relays. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 12, 1951 [Dec. 29, 1950], No. 31647/50. Class 38(5) The effective length of a spring D biasing the armature C of a relay is varied by screwing a screw E into the spring and so varying the number of active turns; the tension of the spring is separately adjustable by rotating a bush G and so causing the bodily downward or upward movement of the screw E and the spring D. After the first adjustment, a split plate F which can slide in a slot in the frame I is tightened by a set screw so preventing further rotation of the screw. The spring D is connected to the armature C by way of a bimetal strip K which reduces the tension on the spring with rise of temperature and so compensates for variation of resistance of winding with temperature and keeps the operating and release voltages of the relay unchanged.
Patent GB-1356105-A (GB)
Title: Fluid control valves
IPC: F16K11/10
Filed: 1970-06-30
Abstract: 1356105 Valves TELEKTRON Ltd 30 June 1971 [30 June 1970 15 Dec 1970] 31699/70 and 59432/70 Heading F2V A valve controlling connection of a work port 21 alternately to inlet 20 and exhaust 22 has a spool 5 supported on diaphragms 9, 9a and biased by spring 25 out of engagement with closure member 1 leaving the latter in contact with seat 3 whereby inlet 20 is connected to port 21. When the spool is shifted leftwards, as by manual means, an electromagnet or, as shown, by pilot fluid admitted at 23 to chamber 24, spool 5 engages the member 1 to disconnect the inlet from port 21 and then unseats member 1 to connect port 21 to the exhaust 22. The member 1 can be reinforced adjacent seat 3 and provided with annular enlargements engageable with the seat 3 and the spool. The direction of the bias and the pilot signal could alternatively be reversed. In other modifications, member 1 is in the form of a rigid ring supported by an annular diaphragm, and a valve with two work ports is provided with duplicate spool and closure member assemblies.
Patent GB-292180-A (GB)
Title: Improvements in or relating to the dyeing, printing or stencilling of materials made of or containing cellulose derivatives
IPC: D06P3/34
Filed: 1926-12-14
Abstract: 292,180. Dreyfus, H. Dec. 14, 1926. Samples furnished. Azo dyes; oxyalkylamino compounds.-Azo dyestuffs containing one or more amino groups substituted by one or more aliphatic side chains each containing two or more hydroxyl groups but no carboxylic groups are suitable for dyeing or otherwise colouring cellulose, esters and ethers. The dyestuffs or their components may be prepared by interaction between an amino compound and a halogenhydrin containing at least two hydroxyl groups, e.g. glyceryl chlorhydrin, chlorbutylene glycol, erythrol dichlorhydrin, mannitol mono- or dichlorhydrin, or a carbohydrate, e.g. glucose, lactose, or galactose, or other aliphatic polyhydroxy aldehyde or ketone, or aliphatic polyhydroxy monocarboxylic acid, or by treating a halogen compound with an aliphatic polyhydroxyamine. In examples (1) the product obtained by condensing p-nitraniline with chlorbutylene glycol and reducing is diazotized and coupled with a-naphthylamine; the product dyes cellulose acetate golden shades which change to reddish when diazotized on the fibre and developed with o-dioxypropylaminophenol (from glyceryl chlorhydrin and o-aminophenol), (2) picramic acid is diazotized and coupled with dioxypropylaniline; the product dyes cellulose acetate in yellowish-brown shades, and (3) 2- amino - 4 - nitrodioxypropylaniline, obtained by partially reducing the condensation product from 2 : 4-dinitrochlorbenzene and gamma-amino-a-#-dioxypropane, is diazotized and coupled with pxylidine; the product dyes acetate silk in fast yellow shades.