baber/WOPTO huggingface dataset:
Patent GB-929209-A (GB)
Title: Polymerization of phenyl glycidyl ether and certain derivatives thereof
IPC: C08J3/24
Filed: 1959-07-02
Abstract: A catalyst system for the polymerization of phenyl glycidyl ethers (see Group IV(a)) comprises an aluminium trialkyl or a co-ordinating metal alkoxide, aryloxide, alkyl alkoxide, alkyl aryloxide or halogen-substituted derivative thereof, preferably together with a co-catalyst which is a metal oxide or chloride. The co-ordinating metal of the first catalyst has an ionic radius of 0,2 to 0,98  , an atomic radius less than 1,6  , an atomic weight less than 66 and exists in a state where its valency is 2, 3 or 4.  Examples are aluminium methoxide, ethoxide, isopropoxide, butoxide, chloroisopropoxide, chloroethoxide, diethyl butoxide, diethyl propoxide, propyl ditert. butoxide and triethyl, zinc and magnesium di-tert. butoxides and ethyl zinc butoxide, and the corresponding derivatives of the other metals such as chromium, iron, magnesium, titanium, cobalt and nickel. Specified co-catalysts are the chlorides of zinc, beryllium, lithium and cobalt.  The proportions of the two components may vary widely.  In Example 1, a solution of isotactic polyphenyl glycidyl ether in cyclohexanone or o-dichlorobenzene, diluted with toluene, is cast on a white polvinyl chloride article and heated to form a film thereon.  Specification 893,274 is referred to.ALSO:The invention comprises isotactic polymers of a phenyl glycidyl ether and copolymers with other olefin oxides.  They are prepared by polymerizing in the presence of a catalyst comprising an aluminium trialkyl or a coordinating metal alkoxide, aryloxide, alkyl alkoxide, alkyl aryloxide or halogen-substituted derivative thereof, the co-ordinating metal having an ionic radius of 0.2 to 0.98 , an atomic radius less than 1.6 , an atomic weight less than 66 and existing in a state where its valency is 2, 3 or 4.  A co-catalyst is preferably used, examples being metal oxides and halides.  Specified catalysts are aluminium methoxide, ethoxide, isopropoxide, butoxide, chloroisopropoxide, chloroethoxide, diethyl butoxide, diethyl propoxide, propyl di-tert. butoxide and triethyl, zinc and magnesium di-t-butoxides, and ethyl zinc butoxide; and the corresponding derivatives of the other metals such as chromium, iron, magnesium, titanium, cobalt and nickel are mentioned.  Specified co-catalysts are the chlorides of zinc, beryllium, lithium and cobalt.  The catalyst may be made insoluble by using a polyhydric alcohol in the preparation.  The monomer may be phenyl glycidyl ether itself or a derivative thereof wherein the phenyl group is substituted by halogen, nitro, alkyl or aryl. Specified comonomers are ethylene and propylene oxides. Temperatures of 50 DEG  to 150 DEG C. are suitable and a solvent may be used.  Examples describe the preparation of isotactic polyphenyl glycidyl ethers which are partly soluble and partly insoluble in acetone but soluble in hot cyclohexanone, benzene, o-dichlorobenzene, dimethyl formamide and phenyl glycidyl ether monomer, from which films may be cast.  Specification 893,274 is referred to.
Patent GB-224332-A (GB)
Title: Improvements in presses for tennis or like rackets
IPC: A63B60/44
Filed: 1923-09-11
Abstract: 224,332. Hazell & Co. and Cordwell, G. F. Sept. 11, 1923. Racket presses.-In a press for tennis or like rackets of the kind in which the racket is held between upper and, lower frames which are secured together, one frame is provided with slots which extend in the same direction to allow the frames to be moved laterally in relation to one another. As shown, bolts 5 extending from a frame 1 pass through slotted plates 11 in a second frame 2 and are provided with securing nuts 8. The slotted plates are so arranged that when the nuts 8 are loosened, the frames may be moved laterally in relation to one another to release a racket from between them. In a modification, the parts of the slotted plates between the side members of the frame 2 are dispensed with. The shanks of the bolts 5 may carry coiled springs to keep the frames apart.
Patent GB-1114214-A (GB)
Title: Improvements in or relating to protective helmets
Inventor: VOGLIAND GERMAN
IPC: A42B3/14
Filed: 1965-05-28
Abstract: 1,114,214. Helmets. G. VOGLIANO and D. BECKMANN. 28 May, 1965, No. 22867/65. Heading A3V. [Also in Division E2] The inner cradle 7 of a helmet supports a chin strap 8 and is detachably secured to a shell 6 by means such as tapes 19 and 20 mounted on the cradle and the shell respectively and comprising interengageable filamentary hooks and loops. The connection means allow the shell to be separated from the cradle 7 when the tapes are subjected to a force having an upward component between 5 kg and 15 kg/cm<SP>2</SP> and pivotal mounting of the tapes 19 on the cradle allows the shell to rotate relative to the cradle when the helmet receive a glancing blow. Tapes 19 are pivotally secured to four head straps, 14-16 shown, themselves secured to a stiff band 9 mounted on the cradle 7. Foam rubber or other resilient padding 17 secured to the straps lies between them and the cradle 7 and similar padding 18 lines the shell.
Patent GB-720346-A (GB)
Title: Improvements in or relating to mixing valves
IPC: G05D23/13
Filed: 1952-09-12
Abstract: 720,346. Valves etc.; fluids, regulating volume &c. DOLE VALVE CO. Sept. 12, 1952 [Sept. 27, 1951], No. 22941/52. Class 135. A mixing valve comprises a body having a mixing chamber 11 with an outlet 15, a hotwater inlet 12, a cold-water inlet 13 and a passage 49 for cold water controlled by a valve 70 secured to a cylinder 63 of a casing 62 containing a thermal fluid in which the cylinder piston 60 is pressed against an abutment 59 by a spring 65. The hot and cold water passages 24, 49 are also controlled by diaphragm valves 25, 55, under the control of solenoid-operated valves 31. A flexible flow control annulus 19 within a cage 18 is inserted in the hot-water inlet and a flexible check valve 37 held by a nib 40 onto a cage 36 is inserted in the cold-water inlet.
Patent GB-1229907-A (GB)
IPC: B26D3/08
Filed: 1969-05-06
Abstract: 1,229,907. Splitting machines. ARES S.A. 6 May, 1969 [10 May, 1968; 5 Sept., 1968; 27 Sept., 1968], No. 22966/69. Heading B4B. [Also in Division B8] Skins 14, or other sheets are fed between two converging belts 1, 2 to a stationary knife 15 which is vertically adjustable according to the desired relative thickness of the severed portions 14a, 14b. The last part 1b, 2b of the path is wavy owing to guide rollers 7-11. In another form, the wavy part of the path is omitted, and either the lower belt is thick and compressible or passes at the outlet end over a roller having a resiliently yielding peripheral layer, to accommodate varying thicknesses of the sheet, the upper severed portion being of constant thickness and the lower of variable thickness.
Patent GB-931550-A (GB)
Title: Improvements in windscreen wipers
Inventor: SMITHERS PHILIP GEOFFREY KENT
IPC: B60S1/38
Filed: 1959-07-03
Abstract: 931,550. Windscreen wipers. TRICO-FOLBERTH Ltd. July 1, 1960 [July 3, 1959], No. 22974/59. Class 138 (1). A flexible backing strip for a windscreen wiper blade comprises two overlapping parts 2, 4 of hairpin shape, adapted to engage in grooves in the sides of the rubber and to be held together by a clip engaging in aligned notches 10 in the parts. A yoke assembly (not shown) may engage the backing strip at its ends and at the limits of the overlap.
Patent GB-274306-A (GB)
Title: Improved appliance for massaging the body
IPC: A61H23/06
Filed: 1926-09-17
Abstract: 274,306. Thomlinson, B. E. Sept. 17, 1926. Massage; cupping-appliances. -A massage appliance comprises an elongated handle a fitted at one end with an india-rubber cup b, and at the other with a clamp d, e to hold a strip f of rubber or other flexible material, preferably cut into narrow trips g to form a lash. The cup b may be secured by a screw c, or by means of a tubular extension fitting over the end of the handle, and in a modification may be fitted at the side of the handle.
Patent GB-932923-A (GB)
Title: Coating metallic sheet or strip material with powdered annealing separator substances
Inventor: JACKSON JOHN MARTIN
IPC: C23C24/00
Filed: 1961-06-26
Abstract: 932,923. Coating articles. ARMCO STEEL CORPORATION. June 26, 1961, No. 23107/61. Class 117. [Also in Group XV] An adherent coating of an annealing separator in dry form and devoid of combined moisture is formed on the surface of metallic sheet or strip stock by creating between the said surface and at least one electrode spaced therefrom an electrostatic field by applying to said electrode an electrical potential sufficiently positive with respect to the potential of said sheet or strip surface to produce a positive corona about the said electrode without producing a negative corona at the said surface, and introducing into the space between the said electrode and said surface an annealing separator in finely-divided form entrained in a dry, non-reactive gas, the position of introduction being closer to the said surface than to the said electrode and outside the area of the said corona. Suitable annealing separators include magnesium oxide, calcium oxide, alumina and silica. The metal sheet may be of iron, steel or silica-iron. Dried air, hydrogen, gases rich in hydrogen and argon are specified as the entraining gas. It is advantageous to isolate the separator laden gas from the electrodes by a blanket of entraining gas free from the separator substance. As shown (Fig. 2), the finely-divided separator substance is fed from a hopper 1 by means of an agitator 3 and screen 2 into delivery means 4 and entrained in a moving gas stream by means of a Venturi feed system 6. The separator laden gas passes through a feed channel 7; a gas blanket may be provided by means of an additional conduit 8. The strip to be coated, 9, is unrolled from roller 10 and is tensioned by rollers 12 and 13 outside the insulating housing 14 surrounding the electrodes, all the rollers being earthed. Rod-like electrodes 15, 16, 17 and 18 extending transversely across the strip and less in length than the width of the strip are connected to the positive side of a highvoltage supply 19. Following the rod electrodes there is a plate electrode 20 preferably of brass or other metal, connected to its own voltage supply so that the potential applied to it is about half that applied to the rods. This electrode ensures deposition of any remaining entrained separator substance and promotes even distribution of the deposited separator.
Patent GB-423842-A (GB)
Title: Improvements in or relating to separable electrical contact devices
IPC: H01R13/40
Filed: 1934-08-10
Abstract: 423,842. Bayonet-joint fastenings. CINCH MANUFACTURING CORPORATION, 2335, West Van Buren Street, Chicago, U.S.A. -(Assignees of Knutson, C. L.; Maywood, Illinois, U.S.A.) Aug. 10, 1934, No. 23149. Convention date, Sept. 9, 1933. [Class 44] [See also Group XXXVI] Each member of a multiple plug- and-socket coupling comprises a pair of spaced plates 4, 5 and a housing 1<a> which is applied in such a way that an internal shoulder 21 passes a straight side of plate 5, the housing then being turned until a projection 22 springs into a notch in the plate 4 and the shoulder 21 engages behind the circular edge of plate 5.
Patent GB-1421096-A (GB)
Title: Pneumatic telescopic hoist having three or more steps of extension
IPC: B66F3/28
Filed: 1974-05-23
Abstract: 1421096 Pneumatically operated actuators UP-RIGHT Inc 23 May 1974 23157/74 Headings F1D and F1P A pneumatically operated telescopic hoist, Fig. 1, is extended in stages starting from the bottom and as each stage is extended it is overpressurized before the next stage is extended to prevent partial collapse under load. Opening a valve 50, Fig. 1A, by depressing a pedal U causes gas to flow from a source S through a check-valve 56 and conduits 18, 19 to raise a piston 21. When the latter is fully extended a piston 30 moves up slightly so that a valve 25 in the piston 21 closes. The space below piston 21 is now overpressurized. When this is completed the next valve 51 is opened and the next stage is extended and overpressurized. This continues until the hoist is fully extended. Figs. 1B, 1C, (not shown), illustrate circuits with only one up and one down valve, the sequential operation being effected by throttle devices and pressure responsive valves respectively. When the D pedal is depressed, a valve 53 is opened and each stage is first depressurized and then retracted in reverse order to that in which extension took place. Figs. 2 and 2A show an embodiment in which none of the pistons have valves and extension and contraction are controlled by three up and three down pedals. Figs. 2C-2F, (not shown), illustrate various circuits for controlling the hoist by less than the six pedals shown in Fig. 2A by using combinations of throttle devices and high and low pressure responsive valves. Figs. 3 and 3B show a hoist in which some of the stages comprise more than one piston and cylinder. Extension and retraction of each piston and cylinder is automatically carried out by high and low pressure responsive valves under the control of one up pedal and one down pedal. Fig. 3A, (not shown) illustrates a control circuit with separate pedals.
Patent GB-1300770-A (GB)
Title: Microwave signal processing circuits
IPC: H03D9/04
Filed: 1970-05-13
Abstract: 1300770 Magnetometers THOMSON-C S F 13 May 1970 [14 May 1969] 23289/70 Heading G1N [Also in Division H3] A signal processing circuit comprises a first micro-wave hybrid 1 for splitting an input signal A(F) into two quadrature components a and ja; a second hybrid 2 fed with the two components, and providing sum and difference outputs a(1+j), a(1-j); and a ferro-magnetic resonator 1 in one of the inter-connections between the two hybrids. The resonator is coupled in via a circulator 5 and varies the reflection co-efficient of the circulator. The outputs of the second hybrid are fed to a difference detector, the output from which is arranged to be zero at a predetermined frequency by adjusting the magnetic field of resonator 1 by means of control circuit 16, 17, 18. If the magnetic field is left constant and the signal A(F) is frequency modulated, the circuit will function as a frequency demodulator. Alternatively if A(F) is maintained at a constant frequency, the circuit will detect variations in the magnetic field around the resonator. The centre value to which the circuit is set may be stabilized by a retroactive loop circuit 19 from output 15 back to the field control 17. The output may alternatively be taken from this loop at 18.
Patent GB-921871-A (GB)
IPC: A01D43/08
Filed: 1959-07-07
Abstract: 921,871. Forage harvesters; cutting grass. PATENT CONCERN N.V. July 7, 1959 [July 17, 1958], No. 23329/59. Classes 6(2) and 6(3). [Also in Group XXX]. A forage-harvester comprises a frame 4 carrying a crop-cutting mechanism 2 and a delivery shoot 3 directly above it to receive the cut crop, the cutting mechanism being floatingly arranged relatively to the frame. In one form shown, Fig. 2, the cutter comprises a rotary cutter-cylinder and ledger-blade 23, the cylinder consisting of a cage of bars 16 to which are attached short blades 17 each blade having radial and tangential portions 18, 19. The cutter is suspended by a spring 32 from a bellcrank 33 pivoted on the frame and adjustable by a screw 35. The shoot has a pivoted flap 38 at its top end operable by a cable 39 and handle 40 to alter the direction of discharge. A fan B may be optionally provided to assist discharge and a hopper-like mouth M may then also be provided at the base of the shoot so that the device may be used as a pneumatic elevator for previously-cut crop. In a second form, Fig. 8, the cutting mechanism 57 comprises pivoted knives 60 but no ledger blade, the fan 72 and mouth 82 being integral with the shoot 70 of which the upper part includes relatively rotatable sections 94, 95 in addition to the pivoted flap 84. Specifications 921,872, 921,873 and 921,874 are referred to.
Patent GB-244381-A (GB)
Title: Improvements in weaving healds
IPC: B21F45/08
Filed: 1925-09-19
Abstract: 244,381. Braecker, W. Sept. 19, 1925. Healds.-Mails for steel wire healds are made from a metal strip 1 by stamping out eyes 5 at the required intervals and simultaneously or afterwards stamping out the mail ends 6, as shown in Fig. 2. The strip is of the width required for the finished mail, its edges are V-grooved to receive the beald wires 8, 9, Fig. 3, and it is of the same thickness as the heald wire. The spaces 10, 11, Fig. 3, between the mails and the wires are filled with solder. The strip 'may be of copper, brass, or steel, and in the latter case the mails can be hardened.
Patent GB-282464-A (GB)
Title: Improvements in electric heaters
IPC: F24C7/06
Filed: 1926-09-22
Abstract: 282,464. Klemens, B. L. Sept. 22, 1926. Electric stoves.-The heater comprises a reflector of trough formation and a number of heating elements a<1> - - a<4> arranged parallel to one another in a longitudinal fashion in a plane dividing the reflector in halves and containing the longitudinal axis of the reflector, the elements being connected in series or parallel. A particular construction or reflector is described which ensures that no reflected heat-rays impinge on the heating elements or a second part of the reflector. When used in a boiling apparatus the reflector is provided with drain holes or is constructed in two halves M, N with a gap O between them to allow for drainage
Patent GB-963046-A (GB)
Title: Elevating apparatus
IPC: B65G17/14
Filed: 1962-06-19
Abstract: 963,046. Endless conveyers. H. A. HUEBNER, and R. M. WORREL. June 19, 1962 [June 22, 1961], No. 23486/62. Heading B8A. An elevating conveyer 10 transfers potatoes 70 from a conveyer 22, which receives them from a digging blade of a harvesting machine (not shown), to an upper conveyer 30 in flexible pockets 51 sagging under gravity between adjacent brackets 48 attached to parallel chains 47. Sprockets 60 drive the chains 47, the ascending run 55 of the conveyer 10 being angled to discharge the potatoes 70 as the pockets 51 pass the sprockets 60. As the pockets 51 pass round return sprockets 45 the brackets 48 diverge so as to tighten the pockets 51 to eject any dirt, mud or other debris.
Patent GB-151469-A (GB)
Title: Improvements in or relating to wheels for motor cycles and the like
IPC: B62K25/02
Filed: 1919-09-24
Abstract: 151,469. Caddick, W., and Ruby Cycle Co. Sept. 24,1919. Driving-chains, adjusting; wheels, facilitating detachment of.-In means for facilitating the detachment of the rear wheel of a motor-cycle &c. in which a combined brake drum and sprocket-wheel D, E has a dog-clutch engagement F with the wheel G and a distance-piece upon a pivoted arm is provided at the opposite end of the hub to allow for the disconnexion, in an axial direction, of the hub from the sprocket-wheel, the pivot I<1> of the distance-piece I<x> is arranged to engage with the eye J of a screw-threaded chain-adjusting member C. The distance-piece is perforated to receive the removable central bolt or axle. According to the Provisional Specification, the arm may be pivoted or allowed to slide in a slot in the chain adjuster or other part.
Patent GB-171178-A (GB)
Title: Improvements in the manufacture of compressed tablets from aspirin and similar compounds
IPC: A61K9/20
Filed: 1920-08-11
Abstract: 171,178. Cocherton, S. E., and Genatosan, Ltd. Aug. 11, 1920. Right to Patent relinquished. Medicines for internal use. - Relates to substances for use as binding-agents in the manufacture of medicinal tablets from powders, particularly aspirin and similar compounds. The binding-agent used consists of a non-adhesive farinaceous substance, arrowroot, cornflour, and farina being mentioned as examples. The aspirin and binding-agent are mixed, slightly compressed to render the mixture solid, broken down into powder form, and finally compressed to tablet form. In order to prevent adherence of the mass to the punches or moulds, a film of the farinaceous material may be blown on or otherwise applied thereto.
Patent GB-1262904-A (GB)
Title: Error detection and correction
Inventor: SCHROEDER HENRY CHARLES
IPC: H04L27/18
Filed: 1969-05-08
Abstract: 1,262,904. Digital transmission systems. WESTERN ELECTRIC CO. Inc. 8 May, 1969 [10 May, 1968], No. 23526/69. Heading H4P. In a differential phase shift receiver the effects of spurious phase shifts are cancelled by logic circuitry fed by signals representing the phase difference between adjacent signalling intervals separated by a single phase transition and between non-adjacent intervals separated by at least two transitions.  The embodiment described corrects for phase errors occurring in not more than two adjacent intervals. The received signal is a 4-phase signal in which each phase difference represents a dibit. It passes to demodulators 56, 57 and to 1-bit delay 53 whose outputs, 90 degrees phase displaced, pass to the demodulators. Demodulator 56 generates the first bit C of the current dibit, and 57 the second bit D. Unit 60 passes C and D serially to 3-bit shift register 78, 80, 82. In the event of a sufficiently large spurious phase shift C and D are incorrect. C and D are also fed direct and via 1-bit delays 64, 65 to an error detector 68 which is also fed by bits E, F representing the phase difference between the signal during the current dibit interval and that two intervals later, as determined by units 63, 69, 72, 73. Error detector 68 performs logical operations defined in the Specification and passes a pulse to counter 76 when an error is detected. If counter 76 counts errors in adjacent intervals it passes a pulse to error corrector 77 which is also fed by bits C, D, E and F. The signals produced as a result of the logical operations performed in error corrector 77 replace those signals in the first two stages 78, 80 of the shift register, the register output then being correct.
Patent GB-334345-A (GB)
Title: Improved means for absorbing vibration and sounds produced in driving mechanism for gramophones and like apparatus
IPC: G11B33/02
Filed: 1929-07-31
Abstract: 334,345. Whitehead, A. J. July 31, 1929. Driving; casings.-For the purpose of absorbing vibraticn and sounds produced in the driving mechanism, the gear-box a of a gramophone is carried by screws d and rubber buffers c in a cradle c which is secured to any permanent structure. An air gap f is thus formed between the adjacent faces of the box a and cradle c.
Patent GB-442870-A (GB)
Title: Improvements relating to the construction of buildings
IPC: E04H1/02
Filed: 1934-08-15
Abstract: 442,870. Dwellings. SINGER, F., 18, Schadekgasse, Vienna. Aug. 15, 1934, No. 23552. [Class 20 (i)] Rooms of a building of the flat or tenement type, or of small detached, semi-detached, or terrace houses are provided at different substorey levels, so that a portion of a room overlaps a portion of the next lower room whereby a space for storing the furniture &c. of the lower room is provided between adjacent floor levels. The rooms may lead off from a central spiral staircase comprising a series of sets of a few steps, e.g. three steps, separated by landings, the staircase being built round a central shaft comprising lavatories &c. V, Fig. 2. A verandah B may lead by three steps C to a living room D having a low recess into which a bed G may be moved when not required. The ceiling of the recess forms part of the floor of a superposed room H, Fig. 3, the remainder of the floor of which overhangs a space L which may be used for storing garden furniture &c. The partial overlapping of rooms may be continued in more than one direction, for example, so that a room may be overhung on two sides. The building may comprise a series of upwardly stepped floor levels or it may comprise a series of alternately higher and lower stepped sub-storey levels on each main storey or combinations of these arrangements may be adopted. The rooms may be added in a straight or other direction. Specification 29744 /06, [Class 20], is referred to.