baber/WOPTO huggingface dataset:
Patent GB-265695-A (GB)
Title: Improvements in automatic and semi-automatic telephone systems
IPC: H04Q3/58
Filed: 1925-11-13
Abstract: 265,695. Standard Telephones & Cables, Ltd., Moir, R. A., and Hartley, G. C. Nov. 13, 1925. Automatic and semi-automatic exchange systems.-A discriminating selector at a district office has an associated non-numerical switch which, when the selector is taken into use, seizes a trunk to the main exchange. The first train of dialled impulses are received by a repeater at the outgoing end of the trunk, and are repeated thereover and also back to the selector. If the first digit indicates a local call. shaft springs are operated which cause the selector to drop hack and the trunk to be released. The impulse relay is connected directly to the calling loop, and the connection is then set up in the usual manner. If all the trunks are busy, the non- numerical switch comes to rest on the last terminals, and circuit changes take place by which the impulse relay of the selector is connected to the calling loop, so that a local connection may be established, while a busy signal is sent back if a main exchange connection is desired. Main exchange call. Line relay L upon energization grounds the test wire and connects up the magnet DM and switching relay K of the hunting switch. Relay K energizes when an idle trunk is found and extends the calling line to the associated repeater. Impulse relay A energizes over wiper Q connecting up relays B, C, and responds to the first train of impulses, and the vertical magnet V operates. No circuit is closed for the rotary magnet K when relay C falls back, so that further trains of impulses have no effect in the selector. Local call : In this case, shaft springs NPA are closed, and when relay C falls back, two-step relay SW energizes partially and closes contacts 5, 6, connecting up the release magnet Z to restore the selector. Relay SW energizes fully when springs NPA re-open, breaks the connections to the repeater so that the trunk is released, and connects impulse relay A to the calling loop. Relay C re-energizes, and the selector operates in the usual way as a group selector. Test relay H upon energization closes a fresh circuit for relay SW. If all the outlets are busy, eleventh step contacts S are closed and a busy signal is sent back. All trunks busy. Relay K energizes over the last test terminal of the hunting switch, which is ungrounded in this case, and connects impulse relay A to the calling loop over the line wipers of the hunting switch. Relays B, C energize and dialling tone DT is sent back. Relay C falls back after the first impulse train, and if a main exchange call is required, a busy signal BT is sent back. If the call is a local one, springs NPA are closed, and the call proceeds as described in the last paragraph. Special service calls by dialling O. Springs NPB are closed on the tenth level, and relay SW energizes fully and connects up rotary stepping relay G, so that when relay C falls back, the selector hunts for an idle trunk leading to an operator's position.
Patent GB-1209534-A (GB)
Title: Optical scanning device
IPC: G06V10/10
Filed: 1968-06-17
Abstract: 1,209,534. Pattern recognition. INTERNATIONAL BUSINESS MACHINES CORP. 17 June, 1968 [14 July, 1967], No. 28709/68. Heading G4R. [Also in Division F2] An optical scanning device comprises a member movable over an aperture, the member moving successively along a plurality of paths, each path having a different angular relationship to the aperture. Portions, selected by a movable mask (not shown in Fig. 2), of a fingerprint (or similar pattern) to be recognized, are imaged by respective lenses 29 via an aperture 30 in the planet carrier 31 of an epicyclic gear on to respective photo-cells. A motor-driven gear 37 meshes with and rotates the planet carrier 31 which also meshes with idler gears 39, 40, 41. The shaft of a planet pinion 43 is supported in the planet carrier 31 (which itself has no shaft). The pinion 43 meshes with a fixed ring of gear teeth 42 and rotates a notched disc 46 to chop the light coming through aperture 30 from progressively changing directions so that the slope of fingerprint ridges can be detected. Comparison of the slopes from different portions of the fingerprint enables ridge ends and bifurcations to be detected. The outputs of the photo-cells can be filtered before use, to remove the chopping frequency. The photo-cell outputs can be averaged (with each other). Ridges may be counted.
Patent GB-632459-A (GB)
Title: Improvements in coat hangers
IPC: A47G25/28
Filed: 1947-10-29
Abstract: 632,459. Garment hangers. HILL, A. Oct. 29, 1947, No. 28819. [Class 52 (v)] A coat-hanger has a substantially rectangular member, formed from two rods 4a, 4b spaced apart by dowels 5, connected to its concave edge by two wires 3. These wires 3 are attached near the centre of the coat hanger and at a small angle of inclination to the plane of the coat-hanger to enable trousers to be hung on the bar 4b without disturbing the jacket.
Patent GB-699250-A (GB)
Title: Improvements in and relating to floor coverings
IPC: A47G27/02
Filed: 1950-11-27
Abstract: 699,250. Link mats. WHITTLE, O. L. Jan. 23, 1952 [Nov. 27, 1950], No. 28899/50. Class 142(iv) Strips of material comprising the longitudinal members of a mat are secured together by flat metal strips passing through slits in the ends of the longitudinal members. The mat may be made of members 7 of leather, rubber, balata, or vulcanized fibre, and the ends 13 of metal strips 9, engaging slits 8, may be split and turned up and down. Alternatively, the strips 9 may be secured by a pin passing through the outermost members 7 and through the strips, or by. turning up the whole of the end of the strips 9, a washer may be interposed between the turned up strip and the outermost face of the member 7. The members 7 may be arranged in staggered formation in successive rows, or may extend the full length of the mat and may be arranged side by side without spacing members.
Patent GB-1157429-A (GB)
Title: Method of Partially Esterifying Cellulose while Retaining its Form and Structure
Inventor: THOMAS RAINER
IPC: D06M13/184
Filed: 1968-06-18
Abstract: 1,157,429. S-Acylated thioglycollic acids. PHRIX-WERKE A.G. 18 June, 1968 [19 June, 1967; 14 Sept., 1967], No. 28949/68. Heading C2C. [Also in Divisions C3 and D1] S-acylated derivatives of thioglycollic acid are made by the reaction of thioglycollic acid with benzoyl chloride or the anhydride of acetic, caproic, stearic, acetylsalicylic, o- or terephthalic, adipic or succinic acid. In the case of succinic anhydride, the product may be the mono- or di-thioglycollic acid derivative; use of the other dicarboxylic anhydrides results in the di-derivative. Carboxymethyl mercaptoacetyl thioglycollic acid is made by reaction of 2 moles of thioglycollic acid and 1 mole of chloroacetyl chloride, in the presence of 4 moles of NaOH.
Patent GB-210149-A (GB)
Title: An improved method of and means for controlling the supply of heat, applicable to vulcanising or other apparatus
IPC: G05D23/01
Filed: 1922-10-24
Abstract: 210,149. Frost & Co., Ltd., H., and Welch, W. H. Oct. 24, 1922. Thermostats. - A heating apparatus comprises two parts, one of which is directly heated, and the other is heated from the first by conduction, and means are provided for automatically controlling the supply of heat from the one to the other by interposing a variable length of a poor conductor e.g. an air gap, in the conducting path. A member 13 with base-plate 10 adapted to be clamped to the article to be heated, has hinged to it at 19 an upper member 21 of good conducting material, consisting of a double cylinder having air inlets 24, and outlets 26, the inlets of the inner cylinder being staggered with respect to those in the outer. The cylinder 21 is heated by the combustion of material in an internal cup and heat is transferred by conduction to the lower member 13. Upon a predetermined temperature being attained, the distortion of a bimetallic strip 17 bearing on an adjustable screw 27, tilts the upper member 21, and produces or increases an air gap between the' members. Several modifications of details are described. The screw 27 may be replaced by a cam, and the upper member may be provided with ribs and transverse passages to increase its heat capacity. The combustiblecontaining cup may be fixed or adjustable, or it may be perforated and surrounded by an adjustable shield to vary the rate of combustion.
Patent GB-210152-A (GB)
Title: Improvements in the warp thread controlling mechanism of looms for weaving a series of narrow fabrics
IPC: D03D41/00
Filed: 1922-10-25
Abstract: 210,152. Hill, H. Oct. 25, 1922. Dobbies ; healds ; shedding-motions ; jacquards. -In looms for weaving a series of narrow fabrics wherein the warp threads pass up through a series of longitudinal thread guide bars or wires A, so as to form a series of transverse parallel sheds into which the weft thread is inserted in loops, as described in Specification 154,269, the bars A are passed through a guiding sley-plate B and are connected by members C having stops C<1> to hinged and hooked jacks D, which by means of jacquard-controlled strings M can be raised away from or allowed to fall into the path of oppositely reciprocating plates E, F, whereby pattern effects can be produced. A jacquard with horizontal selector needles and vertical griffe needles is preferably used. The plates E, F are carried by blocks G sliding in guideways H and are actuated by lever mechanism L<1>, L and cams J. The guide bars A, which preferably comprise thin flat steel bands, are connected in pairs to springs N each passing over a roller or pulley O on a fixed axle P.
Patent GB-393165-A (GB)
Title: Improvements in or relating to cooking grids
IPC: A47J37/06
Filed: 1932-10-17
Abstract: 393,165. GrillingÀ &c. apparatus. HUMBERT, M. D. C., 11, Rue du Faubourg St-Jacques, Joinville, Haute-Marne, France. Oct. 17, 1932, No. 29039. Convention date, Oct. 30, 1931. [Class 28 (i).] A cooking-grid in which provision is made for the collection of the juice emitted by the food during cooking comprises a sloping table having grooves thereon running in the direction of slope of the table and leading to a trough 4 formed as an extension of a cylindrical basemember 2 which supports the table, a handle 5 being provided on the exterior of the trough. A groove 3 also leading to the trough may be provided on the periphery of the table. The base-member 2 may be provided with a moulded edge 2A to increase the stability of the grid. An electric heating element may be arranged below the table.
Patent GB-1287258-A (GB)
Title: Reefing claws
Inventor: RANDELL-CLARK MAURICE
IPC: B63H9/10
Filed: 1971-06-21
Abstract: 1287258 Sailing boats M KANDELLCLARK 21 June 1971 29056/71 Heading B7V A hook shaped device 1 is adapted to be clipped over boom 19, and the reefed down part of the sail, to form an anchorage for control sheet 13. The lower part of the device has a key hole slot (9-12) in which fits a boom key 14, and either a rigid arm 30 or cord 21 locate the device along the boom. The device is constructed of either stainless steel or plastics material.
Patent GB-627485-A (GB)
Title: Improvements in and relating to fluid operated electric circuit breakers
IPC: H01H33/32
Filed: 1945-11-02
Abstract: 627,485. Fluid - blast circuit - breakers. BRITISH THOMSON-HOUSTON CO., Ltd. (Timmerman, J. W.). Nov. 2, 1945, No. 29152. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 8, 1946] [Class 38(v)] The movable contact 13 of a fluid-blast, fluid-operated circuit-breaker is operated by two pistons 30, 31, working in cylinders 33, 34, and interconnected by a rack 32 engaging a pinion 35 on a shaft 36, to which the contact 13 is connected by a link 59 and arm 57, the initial opening movement of the contact beiing effected by an auxiliary piston 44 working in a cylinder 45. Upon operation of valve 48, air is supplied to cylinders 45, 40, and pistons 44, 30, 31 move to the right, thereby rotating the shaft 36 clockwise with toggle 57, 59<SP>11</SP> overset. Simultaneously, a cam (not shown) on shaft 36 opens a blast valve in conduit 26 to cause a blast of fluid across the contacts. This blast helps the upward movement of the contact 13, but towards the end of the stroke of the piston 44, the air in the cylinder 40 opposes the motion of a piston 37 and thereby keeps the speed of the contact substantially constant. As the contact 13 is withdrawn from the arc chute 2, the blast of fluid is cut off, so that the force on the contact is reduced. To compensate for this, a bye-pass 52 in the cylinder 40 is opened to relieve the pressure on the face of piston 37, and at the same time a bye-pass 50 is uncovered to allow the full fluid pressure in cylinder 45 to act directly on piston 30. A final dash-pot action occurs when the piston 37 passes the second part of the bye-pass 52. The circuit-breaker is closed by passing air into cylinder 34, to force pistons 30, 31, 44 to the left, dump ports 56 permitting rapid reversal of the pistons in the event of trip-free operation of the circuit-breaker. Specification 544,017 is referred to.
Patent GB-533397-A (GB)
Title: Improvements in or relating to multiplex telegraph systems
IPC: H04L19/00
Filed: 1939-11-01
Abstract: 533,397. Multiplex telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 1, 1939, No. 29181. Convention date, Nov. 1, 1938. [Classes 40 (iii) and 40 (v)] In a distributer multiplex wire or wireless system, the transmitting distributer is controlled by alternating currents generated by the receiving distributer at the same station. The invention is described as applied to a wireless system having a main station A and branch stations B, C, in which normally each station can communicate directly with either of the others, and in an emergency B can communicate with C via the main station A. Each branch station has separate transmitting and receiving distributers 9, 10, Fig. 2, normally driven by motors 15, 26 controlled by power units 16, 27 from a standard frequency unit 17, switch 23 being on contact 24. The receiving distributer 10 is synchronized with the transmitting distributer at the main station by correction unit 18 and correction motor 19 in known manner. When B communicates with C via A, switch 23 at station A .is moved to contact 25 so that an a.c. generator 11, 12 driven by distributer 10 is connected to power unit 27 and drives the transmitting distributer 9 exactly in synchronism. Impulses from the tape transmitters 32 in the three channels 34 in turn control a pair of flip-flap valves 42, 51, in unstable equilibrium which control a pushpull modulator 56, 57 supplying power to aerial T. Oscillations received at the main station, Fig. 3, are rectified at 77, applied to a valve 71, and then via one channel of the distributer 77 to a pair of valves 81, 82 in unstable equilibrium. The output of valves 81, 82 is applied by magnet 128 to a telegraphone or other phase-adjuster, the pick-up 129 of which is connected in one channel of the transmitting distributer 20, so that the signals are transmitted at aerial T to the branch station C. The pick-up is adjusted relatively to the distributer with the aid of a neontube stroboscopic device 132, 137.
Patent GB-152614-A (GB)
Title: Improvements relating to the support of motor cycle side cars
IPC: B62K27/06
Filed: 1920-04-01
Abstract: 152,614. Underwood Patent Sidecar Proprietary, Ltd. June 11, 1919, [Convention date]. Springs, arrangement of. - Relates to spring suspensions particularly of the type described in Specification 150,741 in which a side-car body is resiliently mounted on arms 9, 13 pivoted to the body and connected respectively to the side-car wheel and motor-cycle frame. According to the invention, shock-absorbers 14, which may be constructed as described in the above-mentioned Specification, are connected at their upper ends to the arms 9, 13 by longitudinally adjustable brackets 21, their lower ends being connected by a bar 16 mounted on a block 17 which is adjustably secured to the side-car by bolts 18 passing through slots 19 in the bottom of the body.
Patent GB-1009360-A (GB)
Title: Improvements in or relating to impact polystyrene compositions
IPC: C08L9/06
Filed: 1962-07-30
Abstract: Transparent, thermoplastic moulding material is made by polymerizing a rubber-monomer mixture consisting of 98-65% by weight of (A) a mixture of 85-20% by weight of styrene, vinyl toluene, ethylvinyl benzene or alpha-methyl styrene and 15-20% by weight of at least one of methacrylic esters, itaconic esters and acrylonitrile, and 2-35% by weight of (B) a rubbery polymer having a refractive index (n25D) of 1.513-1.576, the monomer mixture (A) being selected so that a copolymer made therefrom would have a refractive index within 0.005 units of the refractive index of (B).  Also present in the monomer mixture may be a vinyl ester of a C8+ saturated organic acid. Preferred polymerization procedures involve either bulk prepolymerization of the rubber-monomer mixture followed by polymerization of the prepolymer in aqueous suspension, or polymerization of the monomer mixture in a rubber latex.  In either case polymerization is catalyzed by a peroxy compound. The examples describe the use as monomeric materials (A) of mixtures of styrene with (i) methyl methacrylate, optionally containing vinyl stearate, acrylonitrile and/or dimethyl itaconate, (ii) acrylonitrile, optionally with dimethyl itaconate, (iii) isobutyl methacrylate and vinyl stearate, and (iv) dimethyl itaconate, with, as rubbers (B), polybutadiene, polychloroprene and copolymers of styrene and butadiene.
Patent GB-1350854-A (GB)
Title: Method of dyeing synthetic resins dyed synthetic resins and dyes
IPC: C07D317/60
Filed: 1972-06-22
Abstract: 1350854 Dyeing process PHILIPS GLOEILAMPENFABRIEKEN NV 22 June 1972 [25 June 1971] 29268/72 Heading D1B [Also in Division C4] Synthetic resins e.g. polyamides and polyesters are dyed with compounds of the general formula: wherein R and R<SP>1</SP> are each mono-, bi- or tri-cyclic groups which are unsubstituted or have up to three substituents, R 1  and R 1 <SP>1</SP> are C 2 -C 10  alkenylene groups having 1 to 5 conjugated >C=C< bonds in the chain and may be substituted by C 1 -C 2  alkyl phenyl, or alkyl and phenyl, Y and Y<SP>1</SP> are each H, C 1 -C 6  alkyl or phenyl, m and m<SP>1</SP> are each 0 or 1 and when R and R<SP>1</SP> are other than a p-aminophenyl group substituted at the amino group by one or two alkyl or phenyl, a phenyl group having in the p-position a substituent having a double bond in conjugation with the phenyl group or a bi- or tri-cyclic aromatic group than m+m<SP>1</SP> is 1 or 2.
Patent GB-1020016-A (GB)
Title: A rail vehicle with bogies and gas-filled spring bags
IPC: B61F5/24
Filed: 1963-07-24
Abstract: 1,020,016. Railway vehicle undercarriages; guiding axle boxes. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. July 24, 1963 [July 25, 1962], No. 29277/63. Heading B7L. A railway vehicle body 6, Figs. 1 and 3, is supported on the side beams of a bogie 3 by toroidal pneumatic springs 7 which control the level of the body by gas pressure in known manner and permit relative horizontal movements between the body and the bogie frame without producing much returning force, additional rubber springs 11, Fig. 2, being provided between the bogie frame and the body to takeup the lateral forces when the vehicle negotiates a curve in its track. The springs 11, which may comprise layers of rubber of different hardness, are mounted on a crosshead 9 connected by universally pivoted links 10 to stops 12 on the bogie frame. The crosshead is rotatably connected with a pivot 8 on the body, which pivot thus transmits the traction forces. Stops 24 on the body 6 co-operate with stops 23 on the frame 3. Each spring 7 has a bead 16 clamped to the body by rings 17, 18 and a bead 15 which engages under gas pressure against a bearing ring 14 secured to the top of a cylinder 13 secured to the frame 3. A stop 19 comprised of rubber 19b sandwiched between plates 19a, 19c is carried in the open top of the cylinder 13 by ribs 20, a strut 21 and a perforated reinforcing plate 22, so that the interior of the cylinder and the toroidal spring are in gas communication. An equalizing connection may be provided between the springs 7. The axle boxes 4 are mounted in the frame by spring leaf links 2 and support the frame 3 through low volume and low height rubber springs 5. Reference has been directed by the Comptroller to Specification 796,182.
Patent GB-261774-A (GB)
Title: Improvements in or relating to adjustable chairs
IPC: H01H3/14
Filed: 1926-11-19
Abstract: 261,774. Ritter Dental Manufacturing Co., Inc., (Assignees of May, A. J.). Nov. 20, 1925, [Convention date]. Actuated or applied by motor stopping appliances and by springs; periodic.-Electric operating and controlling means for adjusting chairs for dental, surgical, hair-cutting and other operations, is arranged for use without alteration of circuit connections on either alternating or directcurrent systems, and includes a pedal-operated reversing main switch for starting the motor in either direction, associated with means for simultaneously releasing a brake or cutting off the motor and applying the brake at will, a limit switch for automatically cutting off the motor when the chair reaches either of its extreme positions, and independent means for automatically applying the brake when the chair reaches Its lowest position. In the form shown the chair comprises a base 11, Fig. 2, and an extending pedestal in two sections 14. 15 mounted one within the other between guide rollers arranged in pairs, and upon a central rotary screw. The motor shaft 35. Figs. 3 and 10. carries pins 33 to engage holes in a flexible driving disc 30 carried by a brake-wheel 28 on a worm-shaft 27 which gears with a worm-wheel 25 on a vertical shaft mounted within a housing 23 on the base 11 and is connected by gearing 19 - - 21 to the central operating screw. The brake lever 38, Figs. 10 and 12, is operated to release the brake by movement in either direction of the pedallever 71 of the main switch bv means of an arm 91, Fig. 17, carrying a pin 93 working in a slot in a lever 67 pivoted at 68 and connected by an adjustable link 65, Fig. 3, to a lever 57 pivoted at 58 upon the base 11 and carrying a spring- pressed arm 51 with a notch which normally engages a stud 50, Fig. 10, on a lever 47 carrying two pins 49 on opposite sides of its pivot 48, for lifting a shoe 42 on a spring-pressed rod 41 connected to the brake lever 38. The lever 51 is lifted to release the stud 50 and allow the spring 46 to apply the brake when the lower edge of the pedestal section 15 reaches a trip lever 62, Fig. 3.
Patent GB-535430-A (GB)
Title: Process for the manufacture of 2,4-dioxo-3,3-dialkyl-pyrrolidines
IPC: C07D207/38
Filed: 1939-11-03
Abstract: 535,430. Pyrrolidines. HOFFMANN-LA ROCHE & CO. AKT.-GES. F. Nov. 3, 1939, No. 29312. Convention date, Nov. 30, 1938. [Class 2 (iii)] 2:4-Dioxo-3:3-dialkylpyrrolidines, in which the alkyl groups each contain at least two carbon atoms, are prepared by reacting a:adialkyl-y-halogenacetoacetic esters with ammonia in a solvent. The products possess therapeutic properties. Examples describe the preparation of 3:3-diethyl-, 3-n-propyl-3- isobutyl- and 3-n-propyl-3-n-hexyl-2:4-dioxopyrrolidines from the corresponding α:α-disubstituted-γ-bromoacetoacetic esters, and 3:3- di-n-propyl-2:4-dioxo-pyrrolidine from α:α-di-npropyl-γ-chloracetoacetic ester. Of the α:α-dialkyl-γ-halogenacetoacetic esters, the α:α-di-n-propyl compound above is prepared by treating α:α-di-n-propylacetoacetic ester with sulphuryl chloride, and the remaining two esters by reacting α-n-propylacetoacetic ester with isobutyl bromide and n-propyl bromide respectively and brominating with bromine.