baber/WOPTO huggingface dataset:
Patent GB-1079119-A (GB)
Title: Light reflecting road marker
IPC: E01F9/06
Filed: 1965-08-27
Abstract: 1,079,119. Reflex reflectors. ELASTIC STOP NUT CORPORATION OF AMERICA. Aug. 27, 1965 [Oct. 23, 1964], No. 37056/65. Heading G2J. [Also in Division E1] In a reflex reflecting road marking stud having a face of light-transmitting material at an acute angle to the road surface, the axes of the cubecorners forming the reflecting surface on the rear of the face are substantially parallel to the path of the light refracted through the plastic face material from the horizontal.
Patent GB-1237546-A (GB)
Title: Gun-flash detector
IPC: G02B23/12
Filed: 1968-08-05
Abstract: 1,237,546. 546. Detecting gun-fire photoelectrically. BARNES ENG. CO. Aug. 5, 1968 [Sept. 20, 1967], No. 37258/68. Heading G1A. [Also in Divisions G2 and H4] Gun flashes are detected and distinguished from background radiation by detecting the infrared radiation from the flash and ascertaining whether the pulse produced has predetermined shape characteristics. The detector pulse is applied through an attenuator to one input of a comparator and through an integrator to the other input. The comparator gives an output when the detector signal level drops below the integrated level. A delay multi-vibrator generates a pulse a predetermined time after the start of the detector pulse. The delayed pulse and the comparator output are fed to an AND gate to initiate an alarm if the detector signal level equals the integrated level at a time characteristic of gunfire. Optical system Infrared radiation passing through the lens 12 is reflected by a spherical lens 14 on to a PbS photo-resistor 18. To avoid bright objects entering the field of view causing false alarms, lens 12 has low resolution and mirror 14 images the entrance aperture 11 into the detector 18. The field of view is limited by a stop 16. The gun fire detector may be mounted on an aircraft or other vehicle and a plurality of detectors may cover adjacent fields.
Patent GB-520317-A (GB)
Title: Slippers
IPC: A43B3/30
Filed: 1938-12-23
Abstract: 520,317. Boots &c. BADGER GLOVE & SLIPPER CO. Dec. 23, 1938, No. 37479. Convention date, Jan. 29. [Class 17 (ii)] A child's slipper is provided with a chamber 33, constructed so as to simulate a bunny's head, containing a whistle or squawker 42 operated by flexure of the outside of the head or pressure on the inner wall 34. The spring 43 ,which keeps the top disc 40 of the squawker separated from the bottom one 41 also serves to keep the bunny's head in shape and the eyes riveted on the head serve also to give communication between the chamber and the outer air. The bunny's head is made out of one piece of sheepskin or other material 26 which is cut with a notch 27 and two slits 28 so that'when folded round and stitched at 32 to the upper along the edges 31, the edges of the notch are secured together to form the nose, the triangular portions 30 form the ears, and the tab 29 is folded back and secured to a leather member 34 which forms the inside wall of the squawker chamber and is itself sewn on to the head member 26 inwardly of its edge 31 along the line of stitches 35.
Patent GB-1157381-A (GB)
Title: Improvements in or relating to Pulse Regenerating Repeaters
IPC: H04L25/24
Filed: 1966-08-22
Abstract: 1,157,381. Pulse shaping circuits. SUMITOMO ELECTRIC INDUSTRIES Ltd. 22 Aug., 1966 [25 Aug., 1965], No. 37506/66. Heading H3T. A pulse repeater circuit comprises an input circuit A, a delay line B, and a non-linear active termination C which reflects part of the received energy so that a pulse is continuously reflected up and down the line B. The output pulse train transmitted by C has frequency determined by the delay time of line B. In a first embodiment, Fig. 2, the input circuit comprises a shunt bi-stable circuit N w , having a voltage controlled negative resistance characteristic, and the termination C comprises a current controlled negative resistance Sr. Pulses in an input pulse train from source 8 are reflected backwards and forwards along the line until the combined amplitude of an incident and reflected pulse is sufficient to switch the state of bi-stable circuit N w  and produce a large amplitude step. After reflection from termination C this pulse arrives back at the input circuit after a time 2# (where # is the delay time along line B) as a negative pulse to reset the bi-stable circuit. Resetting causes a negative pulse which is reflected back, again with polarity reversal to set the bi-stable circuit again after a further period 2#. The resulting output is thus a pulse train with a pulse width of 2# and a repetition time 4#. In a second embodiment, Fig. 9, the bi-stable circuit is replaced by a monostable circuit N w  and the termination is replaced by a voltage controlled negative resistance Nr. When the monostable circuit is switched by combined input and reflected pulse, the positive step is reflected without phase reversal and arrives back at the input after time T. By this time the monostable circuit has relaxed to its stable state, and is retriggered by the reflected pulse. The resulting output is thus a pulse train having pulse width determined by the relaxation time of the monostable circuit and repetition time 2#. In further modifications the bi-stable or monostable circuits are arranged in series with the line to give negative output pulses, Figs. 14, 16 (not shown). Still further modifications employ monostable or bi-stable elements having current controlled characteristics, Figs. 18-21 (not shown). The bi-stable, monostable and negative resistance elements may comprise cross-coupled pairs of transistors, tunnel diodes or PIN diodes suitable biased. Power may be derived from constant current sources 7 in series with the transmission system.
Patent GB-1070876-A (GB)
Title: Processing polyacetals
Inventor: SCHWARTZ ERICH
IPC: C08G2/28
Filed: 1964-09-15
Abstract: Polyacetals obtained by polymerizing a monomer mixture consisting essentially of trioxane in the presence of a catalyst selected from the group consisting of boron trifluoride and a boron trifluoride co-ordination complex core worked up by adding from 0.01 to 5% of a halide selected from the group consisting of lithium chloride and fluoride, sodium chloride and fluoride, potassium chloride and fluoride, cadmium fluoride, strontium fluoride and barium fluoride, melting and homogenizing the resulting composition.  Comonomers which may be present are cyclic ethers, acetals, lactones white polymeric ethers and acetals may also be present.
Patent GB-933783-A (GB)
Title: Improvements in and relating to voltage selectors
Inventor: BURROWS GEOFFREY HAROLD
IPC: G01R19/00
Filed: 1960-11-03
Abstract: 933,783. Voltage testing, S. SMITH & SONS (ENGLAND) Ltd. Nov. 3, 1960, No. 37869/60. Class 37. In apparatus for selecting the median of three voltages A, B, C; these are applied to inputs D, E, F of control devices K, L, M (e.g., bi-stable trigger circuits) in such manner that pairs of voltages A, B ; B, C and C, A are applied respectively to K, L, M so as to energize polarized switching relays G, H, J to close contacts 1, 2 and 3, 4 when the first voltage of a pair exceeds the second and to close 1, 5 and 3, 6 when the second exceeds the first, having regard to sign. Fixed contacts 2, 5 of relay G are connected to contacts 4, 6 of relay J; contacts 2, 5 of H are connected to 4, 6 of G; contacts 2, 5 of J are connected to 4, 6 of H; while moving contacts 1 are respectively connected to inputs A, B, C and contacts 3 are connected to output N, on which the median voltage of the inputs appears; e.g., B if A> B> C. Voltages A, B, C may be positive, zero or negative, and the control means and switching may be entirely electronic.
Patent GB-833681-A (GB)
Title: Improvements in or relating to lifeboat davits
IPC: B63B23/08
Filed: 1956-12-12
Abstract: 833,681. Davits and boat releasing gear. McQUEEN, G., and BERRY, W. H. March 11, 1958 [Dec. 12, 1956], No. 37906/56. Class 115. A davit comprising a supporting frame 12 mounted on the deck 10 adjacent the ship's side 11, and an articulated jib assembly, has cable and pulley means 34 for height-adjustably suspending a boat 38 at the outer end of the jib, and cable and pulley means 39 actuable to extend and retract the jib. The jib assembly comprises a platform 15 adapted to serve as a lateral extension of the deck 10, connected at one end by hinges 17 to the frame 12, the other end having a pivot pin 22 supporting the jib 20. The cable 39 is attached to the jib at 41 and to the drum of a winch 27. Downward movement of the platform 15 is limited by a chain 43. The cable or " fall ropes " 34 is connected to a winch 26, the drum 28 of which is driven bv an electric motor 29 having a brake 32 operated by a lever 33 which can be actuated from the boat 38 by means of a rope 47 which passes from the lever to a drum 50 in the boat. The boat is suspended via the falls 34, pulley blocks 36 and shackles 57 which are held in engagement with members 52 (secured to the bottom of the boat) by pivoted members 54 held by springs 60. The members 54 are connected by ropes 64 to a mechanism having a hand-lever 61, movement of which causes quick release of the shackles 57 from the members 52.
Patent GB-1064282-A (GB)
Title: Dyes suitable for sensitizing photographic silver halide emulsions and processes for making them
IPC: C07D498/04
Filed: 1963-09-27
Abstract: The invention comprises methine dyes having the following general formulae <FORM:1064282/C4-C5/1> <FORM:1064282/C4-C5/2> <FORM:1064282/C4-C5/3> <FORM:1064282/C4-C5/4> <FORM:1064282/C4-C5/5> wherein W is oxygen, sulphur or selenium, Z, Y and Q complete heterocyclic nuclei, n is 0 or 1, m is 0, 1 or 2, d is 0, 1 or 2, p is 1, 3 or 5, q is 0 or 1, the R groups and R1, R2 and R7 are each hydrogen, alkyl or aryl, R3 and R4 are each cyano, carbalkoxy, carboaryloxy, carboxy and salts thereof or acetamido, R6 is hydrogen when p is 3 or 5 or hydrogen, alkyl or aryl when p is 1, R8 is alkyl or substituted alkyl and X is an acid anion.  The invention further comprises dye bases of the dye of Formula V above and internal anhydrides of such dyes wherein R8 is sulphoalkyl and X is hydroxyl. The dyes are made from intermediates of the formula <FORM:1064282/C4-C5/6> by standard methods.  The dyes, dye bases and internal anhydrides sensitize silver halide emulsions (see Division G2).ALSO:3 - Acetonilidomethylene - 2,3 - dihydro - 1H-pyrrolo - [2,1-b] - benzothiazolium bromide is prepared by adding triethylamine in a heated mixture of 3-anilinomethylene-2,3-dihydro-1H-pyrrolo-[2,1-b] -benzothiazolium bromide and acetic anhydride.  3 - Anilinomethylene - 2,3 - dihydro - 1H - pyrrolo-[2,1-b] -benzothiazolium bromide is prepared by refluxing 2,3-trimethylenebenzothiazolium bromide and ethylisoformanilide in absolute ethyl alcohol.  4 - Acetonilidomethylene - 8 - phenyl - 1,2,3,4-tetrahydropyrido -[2,1-b]-benzoxazolium bromide is prepared refluxing 5-phenyl-2,3-tetramethylene benzoxazolium bromide and N,N1-diphenylformamidine in acetic anhydride.
Patent GB-825517-A (GB)
Title: Toolholder for lathes and other machines
IPC: B23Q1/28
Filed: 1956-12-17
Abstract: 825,517. Lathe &c. tool-holders. GUGLIELMETTI, P. Dec. 17, 1956 [Jan. 10, 1956], No. 38418/56. Class 83 (3). In a lathe or like tool-holder, a tool 12 is mounted on an L-shaped slide 11, verticallyadjustable by a micrometer-screw 18. The slide 11, engaging V-guide surfaces 9 of a support 8 attachable to the lathe, is recessed to receive a slidable square-sectioned member 14, having a threaded hole 16 for the screw 18. The guidesurfaces 9 are chamfered at the sides and converge towards the base of the guide. Axial movement of the screw 18, with respect to the slide 11, is prevented by an integral collar 19 engaging a recess 20 in the slide 11. On rotation of the screw 18, an extension 15 of member 14 abuts a plate 25, attached to a rod 27 engaged in a bore 27<SP>1</SP> of the support 8, and the slide 11 is raised or lowered, the distance being measured by a graduated-disc 28, on the screw 18, and an index 29 on the slide 11. The slide 11 is locked to the support 8 by a screw 26, the rod 27 and the plate 25, Fig. 1. A rotatably-adjustable tool 32, Fig. 3, or a flat-tool, are alternatives to the tool 12.
Patent GB-367091-A (GB)
Title: An improved process of manufacture of shell-like articles of stainless steel
IPC: B21D53/38
Filed: 1930-12-22
Abstract: 367,091. Making hollow knobs, handles, &c. MORING, R., 87, Mortimer Road, De Beauvoir Town, London. Dec. 22, 1930, No. 38505. [Classes 83 (ii) and 83 (iv).] Stamping.-Stainles sheet steel is used to form hollow-ware the sheet being moulded or pressed in dies in two or more separate pieces, e.g. Fig. 6, which are then welded or brazed or soft or hard soldered together without the use of flanges to form the door lock handle in Fig. 5. Figs. 7 and 9 show door or drawer handles similarly formed.
Patent GB-1158292-A (GB)
Title: Mass Spectrometer.
IPC: H01J49/14
Filed: 1967-08-22
Abstract: 1,158,292. Mass spectrometers. PHILIPS ELECTRONIC & ASSOCIATED INDUS. TRIES Ltd. 22 Aug., 1967 [25 Aug., 1966], No. 38550/67. Heading H1D. In a mass spectrometer in which secondary ions are released from the specimen 6 by bombardment with a primary ion beam 2 which is passed through diaphragms 3, 4 and 5, the secondary ions released from the specimen being accelerated by diaphragms 9 to 12 along the path 17 into the analyser chamber 15, the final diaphragm 5 for the primary ion beam 2 is located at a distance of at most a few mm. from the specimen 6 so as to reduce the extraction of residual gas ions formed in the region between the diaphragm 5 and the specimen 6 substantially to zero. In addition a screen 18 is provided between this region and the diaphragm 9 while the potential of the diaphragm 5 is held at the same potential as that of the diaphragm 9, but more than one order of magnitude smaller. Positive or negative ions may be analysed in the spectrometer.
Patent GB-999155-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/38
Filed: 1961-10-27
Abstract: 999,155. Electrostatic precipitators. G. A. MESSEN-JASCHIN. Oct. 27, 1961 [Oct. 28, 1960], No. 38633/61. Heading B2J. An electrostatic precipitator comprises an earthed tubular electrode which is symmetrical about its axis in any transverse section, e.g. of circular cylindrical or conical form, and two ionizing electrodes supported coaxially within the tubular electrode and spaced apart by a distance 2l equal to the diameter 2s of the tubular electrode at a position mid-way between the ionizing electrodes. Fig. 3 shows pointed ionizing electrodes 4, each supplied with H.T. from a common source by conductors u i , within a circular cylindrical tube 3 providing a combined ionizing and precipitation zone L. In alternative arrangements the ionizing electrodes may be wire rings 20, Fig. 10, carried on a hollow insulating rod 19 housing the H.T. leads, or may be formed as carriers 22, Fig. 12, for a radioactive source 23 providing enhanced ionization. Figs. 4 and 5 show a two stage precipitator wherein pointed ionizing electrodes 6 are disposed within a cylindrical tube 5 to provide an ionization chamber, and the downstream electrode 6 is extended at 6a into a separate earthed collecting tube 7 where it cooperates with a charged counter-electrode 9 supplied by a conductor u a . The electrode 6, 6a is supported by struts 8 radiating through apertures in the collecting tube 7 and anchored to the casing (not shown). In a modified arrangement the downstream electrode is extended for the full length of the collecting tube and the counter-electrode 9 is dispensed with. In further arrangements, a series of spaced pairs of charged electrodes 4 or 20 may be arranged in a common earthed tube to provide a number of successive combined ionizing and precipitation zones.
Patent GB-1235317-A (GB)
Title: Display stand
Inventor: HAWKINS STANLEY
IPC: A47F5/11
Filed: 1968-08-15
Abstract: 1,235,317. Display stands. J. LYONS & CO. Ltd. 15 Aug., 1968, No. 39003/68. Heading B8P. A collapsible display stand, e.g. of cardboard, includes a front wall with regions of folding AA-EE about at least one of which the stand is foldable to assume any one of a plurality of configurations. In one configuration, the shaded portion of the front wall is detached from the sides and folded to extend to the back to form a shelf and the portion CCDD extends upwardly to form a vertical wall. In a second configuration, a second portion of the front defined between the lines BB and EE is detached and similarly folded to form a shelf, Figs. 6 and 7 (not shown). The sides 12 have score lines (GF), (FF), (HH), (II), Fig. 2 (not shown) about which they are foldable to form horizontal surfaces (55), Fig. 8 (not shown). The back 11 of the stand has rings (28), (30), (31), Fig. 3 (not shown) defined by scored lines and foldable outwardly to receive a pole (57) which supports an extension (56) of the back 11. In other configurations, the backs of two stands may be cut level with the horizontal surfaces (55) and the stands placed back to back, Fig. 9 (not shown), or one stand may be cut and folded to form a hopper (60), Fig. 10 (not shown), supported by poles (67), each of which pass through the shelf (68) of one of four similar stands disposed below. In insert, Fig. 11 (not shown), formed of intersecting pieces of cardboard may be used as a support for a shelf.
Patent GB-1155755-A (GB)
Title: Shaft Seals
IPC: F16J15/36
Filed: 1966-09-01
Abstract: 1,155,755. Shaft seals. BIURO PROJEKTOW PRZEMYSLU ORGANICZNEGO I TWORZYW SZTUCZNYCH - PORERG. 1 Sept., 1966 [2 Sept., 1965], No. 39041/66. Heading F2B. A vertical rotary shaft 1 is sealed where it extends into a vessel 13 by means comprising a chamber 9 containing sealing liquid and formed by a first sleeve 8 surrounding the shaft with clearance and secured to the vessel and a second sleeve 2 fixed to the shaft, leakage of sealing liquid from the chamber 9 being prevented by co-operating sealing rings 3 and 5 in facial engagement with one another and attached to the sleeves 2 and 8 respectively, and the chamber communicating by pipe 10 with a sealing liquid supply tank 11 which also communicates by pipe 12 with the interior of the vessel 13. The ring 3 is urged against the ring 5 by a spring 4 and may be slidably sealed to the sleeve 2 or carried by a corrugated sleeve 2<SP>1</SP>.
Patent GB-1432288-A (GB)
Title: Extrusion press with a rotary die carrier and a locking system  therefor
IPC: B21C23/21
Filed: 1974-09-10
Abstract: 1432288 Extruding SCHLOEMANN-SIEMAG AG 10 Sept 1974 [10 Sept 1973] 39399/74 Heading B3P An extrusion press with a rotary die carrier 5 has locking members 12 slidably mounted on the front platen 1 of the press to prevent rotary and axial movement of the die carrier. The locking members 12 each comprise a bolt whose head 14 is shaped with planar surfaces which engage corresponding surfaces in recesses 15 in the die carrier. The bolts are moved by piston-cylinder units 18 and prevented from rotating by guide pegs 16 engaged with slots 17 in a block 9 bolted to the front platen. Alternatively the block 9 may be integral with the front platen, Fig. 4 (not shown). The axial movement of the die carrier is also prevented by a plate 20 bolted to the front platen.
Patent GB-803779-A (GB)
Title: Process and catalyst for polymerization of polymerizable hydrocarbons
IPC: C08F2/00
Filed: 1956-12-28
Abstract: A catalyst for polymerizing olefines consists of a mixture of 3 components: (1) a halide of Ti, Zr, Hf or Ge; (2) an hydride of Al, Ga, In, Tl, including complexes with alkali metals, e.g. LiAlH4; and (3) an organic halide which contains an alkyl, cycloalkyl, aryl, alkenyl, cyclo alkenyl, or alkynyl groups, e.g. methyl chloride, allyl bromide, n-butyl fluoride, benzyl chloride, 3-bromocyclopentine.  Many other examples quoted containing Cl, F, Br and I.  Preferred mixtures are, titanium trichloride or tetrachloride, lithium, aluminium hydride and allyl bromide; zirconium tetrachloride, lithium aluminium hydride and ethyl bromide. Olefines polymerized may be 1-olefines containing up to 8 carbon atoms, branched chain or polyolefines having conjugated or non-conjugated double bonds or cyclic olefines. Co-polymerizable materials may be present, e.g. styrene, acrylonitrile, methyl acrylate, or methacrylate, vinyl chloride, 2-methyl-5-vinyl pyridine, or 2-vinyl pyridine.  Diluents, e.g. paraffinic or aromatic hydrocarbons, or halogenated cycloparaffins may be present.ALSO:Olefines are polymerized by a catalyst consisting of a mixture of (1) a halide of Ti, Zr, Hf or Ge; (2) a hydride of Al, Ga, In, Tl including complexes with alkali metals, e.g. LiAlH4; and (3) an organic halide which contains an alkyl, cycloalkyl, aryl, alkenyl, cycloalkenyl or alkynyl group, e.g. methyl chloride, allyl bromide, n-butyl fluoride, benzyl chloride and 3-bromocyclo pentine.  Many other examples are given containing chlorine, bromine, fluorine or iodine.  Preferred mixtures are titanium tri- or tetrachloride, lithium aluminium hydride, and allyl bromide; zirconium tetrachloride, lithium aluminium hydride and ethyl bromide, but many other compounds are specified.  Olefines polymerized may be 1-olefines containing up to 8 C-atoms, branched chain or poly-olefines having conjugated or non-conjugated double bonds or cyclic olefines.  Co-polymerizable materials may be present, e.g. styrene, acrylonitrile, methyl acrylate or methacrylate, vinyl chloride, 2 - methyl - 5 - vinyl pyridine, or 2-vinyl pyridine. Diluents, e.g. paraffinic or aromatic hydrocarbons or halogenated cycloparaffins, may be present.  The monomers and diluents used are preferably purified before polymerization, subsequent to which the catalysts may be deactivated and the polymers purified in the usual manner.  The reaction may if desired be in continuous flow or, as in examples, monomer may be added intermittently.  The products find application in the manufacture of bottles and other containers, pipe and impregnated paper and fabrics.
Patent GB-1537579-A (GB)
Title: Reinforced polycarbodiimide polyester compositions
IPC: C08L67/00
Filed: 1976-09-23
Abstract: 1537579 Polyester moulding compositions CELANESE CORP 23 Sept 1976 [24 Sept 1975] 39522/76 Heading C3R A moulding composition comprises a reinforcing agent and the reaction product of (1) polypropylene terephthalate or polybutylene terephthalate and (2) a polycarbodiimide of number average molecular weight from 300 to 10,000 derived from an aromatic diisocyanate which is either unsubstituted or contains one methyl group on each aromatic ring, and containing at least two carbodiimide groups per molecule. The composition preferably contains 0À1 to 5% by weight of polycarbodiimide, 40 to 85% by weight of polyester and 15 to 60% by weight of reinforcing agent. The composition may contain a conventional fire retardant. The examples describe compositions comprising polybutylene terephthalate, glass fibre and poly- (tolyl carbodiimide) or poly(4,4<SP>1</SP>-diphenylmethane carbodiimide).
Patent GB-1466920-A (GB)
Title: Dart flights
IPC: F42B6/00
Filed: 1974-09-12
Abstract: 1466920 Dart flights R FUSCONE 18 Sept 1975 [12 Sept 1974] 39778/74 Heading A6S A dart flight comprises two flat pieces 10, 11 the former having a central slot 12 of length approximately equal to the distance between the closed ends of slots 13, 14 in the latter, so that the two can be fitted together to form a four-winged flight which is inserted into a cruciform slot in a dart stem. The flight may be made of a plastics material. In Fig. 6 (not shown), the flight is illustrated as inserted into a plastics dart stem screwed into a barrel integral with a point.