baber/WOPTO huggingface dataset:
Patent GB-113156-A (GB)
Title: Improvements in Lantern Slides.
Inventor: PERKINS FREDERICK WINTON
IPC: G03B21/64
Filed: 1917-02-20
Abstract: 113,156. Perkins, F. W. Feb. 20, 1917. Lantern slides.-In lantern slides in which positive films are bound between pieces of glass or the like, the films consist of kinematograph film cut. tings and are attached to one of the pieces of glass &c. by strips of adhesive paper. As shown in Fig. 2, the strips 6, 7 are double, and each comprise a lower layer 6<a>, 7<a> adhesively fixed to the glass plate 5, and an upper layer secured at the top and bottom edges to the lower layer. The edges of the film cuttings 1. 2, 3 are placed between the two layers, and the glass cover-plate 4 is bound in position by binding strips 8.
Patent GB-1203561-A (GB)
Title: Two-stroke internal combustion engines
Inventor: DINEEN JOHN JOSEPH
IPC: F02B75/16
Filed: 1969-01-16
Abstract: 1,203,561. Two-stroke engines. J. J. DINEEN. Jan.16, 1969 Jan.25, 1968], No.2583/69. Heading F1B . In a two-stroke engine comprising a piston 20 reciprocable in a cylinder bore 14 and defining therewith opposed combustion and pumping chambers 16 and 18, the piston is connected to a crank-shaft 26 within the piston. The crankchamber 29 is sealed by oil control rings 42 carried by the piston 20 and oil for cooling and lubrication is supplied through the pipe 34. Fuelair mixture is supplied to the pumping chamber 18 by a carburetter (46), Fig.2 (not shown), through a reed valve 50 and delivered from the pumping chamber through a reed valve 52 and passage 54 to the inlet port 56. A reciprocating power take-off shaft 38 is formed integrally with the piston head 24. Cooling air is directed by a baffle 66 over the intermediate and lower portions of the finned cylinder 12 to a crank-shaft driven blower 64. Air from the blower is directed by a baffle 68 over the upper portion of the cylinder.
Patent GB-790957-A (GB)
Title: Improvements in or relating to fuel oil compositions
IPC: F02B3/06
Filed: 1956-01-26
Abstract: Hydrocarbon fuel oil compositions contain a compound of formula: R-NH-A-COOH where A is a divalent hydrocarbon radical having 2 or 3 carbon atoms and R is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms or one derived from rosin or tall oil, or an alkali metal or alkaline earth metal or amine salt or an alkyl ester of such a compound.  The amine salt may be derived from a monoamine of formula R1NH2, R12NH or R13N, where R1 is an aliphatic hydrocarbon radical having 1 to 22 carbon atoms or one derived from rosin or tall oil acids, or a diamine of formula R11NH(CH2)n NH2, where R11 is an aliphatic hydrocarbon radical having from 8 to 22 carbon atoms or one derived from rosin or tall oil acids, and n is 2 to 5.  The fuel oil may be such as is used in burner systems and diesel engines, and may contain from 25 parts per million to 2 per cent, preferably from 50 to 100 parts per million, of the additive.  In examples fuel oils contain compounds of the formula RNHCH(CH3)CH2 COOH, where R represents hydrocarbon radicals derived from coconut oil fatty acids, tallow fatty acids, tall oil acids and soybean oil fatty acids, and sodium, calcium and amine salts of such compounds, the amines being a primary amine derived from soybean oil acids and a secondary dicoco amine, and a compound of formula: RNHCH2CH2CH2COOCH3 where R represents hydrocarbon radicals derived from coconut oil fatty acids.
Patent GB-138417-A (GB)
Title: Improvements in or relating to calendars or diaries
IPC: G09D3/00
Filed: 1919-02-04
Abstract: 138,417. Howard, W. Feb. 4, 1919. Manuscript books.-A combined calendar and diary consists of a card base 1 with sheets of paper 2 attached thereto by a fabric or other flexible hinge 4. Each sheet represents a week and has a distinctive colour, perforations 5, 6 being provided to divide the sheet into tear-off portions 7 representing days, on which portions entries for diary purposes may be made. A pocket may be provided on the card to receive a pencil or the like. Reference has been directed by the Comptroller to Specification 10508/00.
Patent GB-130400-A (GB)
Title: Improvements in and relating to Electron Discharge Devices.
IPC: H01J21/18
Filed: 1918-02-15
Abstract: 130,400. British Thomson - Houston Co., (General Electric Co.). Feb. 15, 1918. Thermionic relays.-In a vacuum tube acting independently of gas ionization and constituting a " negative resistance," the stream of electrons is subjected to a magnetic field, so as to vary the number impinging on the third electrode. As shown in Fig. 1, a straight filament cathode 2 is surrounded successively by an anode 6 and by a third electrode 8. Around the tube is a coil 13 on a spool 14. The third electrode 8 has a potential intermediate those of the anode and cathode, such that impact of electrons on the third electrode produces secondary electrons which pass to the anode. Thus an increase of potential of the third electrode increases the number of secondary electrons and decreases the current between the cathode and third electrode. The magnetic field parallel to the cathode causes the electrons from the cathode to travel spirally instead of radially and a greater number are intercepted by the anode. In an amplifier, the primary current passes through the coil 13 and an amplified current flows in the circuit of the cathode and third electrode, and may be employed directly or passed through a resistance shunting an indicator. Specification 15555/15 is referred to in the Provisional Specification.
Patent GB-549706-A (GB)
Title: Improvements in or relating to crimping, indenting and like machines, particularly applicable to the production of artillery ammunition
IPC: B21D41/04
Filed: 1941-02-28
Abstract: 549,706. Crimping machines for cartridges. VICKERS-ARMSTRONGS, Ltd., and SWIFT, T. R. Feb. 28, 1941. No. 2769. [Class 9 (i)] [Also in Group XXII] A hand-operated indenting and crimping machine for fixing projectiles into cartridge cases, or attaching detonators to cord or electric fuzes comprises two sets of radially-movable dies 8, 8<SP>1</SP>, which are respectively operated inwardly by toggles 9, 9<SP>1</SP> by opposite rotations of a ring 10 by means of a hand-lever 11 reciprocatable between two stops 12, 12f. The ring is provided with grooves 16 for the ends of the toggle bars to allow for the alternate operation of the dies. The ring is provided with a spring ball-stop 17 to retain it in inoperative position, and other springs open the dies after their operation. Specifications 137,473, [Class 83 (iv)], and 367,221 are referred to.
Patent GB-1012935-A (GB)
Title: A process for improving the bonding of polyethylene terephthalate tyre cord to rubber
IPC: D06M101/16
Filed: 1964-01-22
Abstract: The bonding of polyethylene terephthalate tyre cord to rubber is improved by treating the filaments, cord yarn or fabric used for the production of the tyre cord with an aqueous solution containing a diglycide ether of an aliphatic dihydric alcohol having 2-6 carbon atoms and a heterocyclic or aliphatic amine heating to 160 DEG -245 DEG C. and then treating them with an aqueous dispersion of a resorcinol-formaldehyde precondensate and a vinyl pyridine latex. The diglycide ether may be the diglycide ether of butane-1, 3-diol, butane-1, 4-diol, butane-2, 3-diol, propane-1, 2-diol, propane -1, 3-diol or ethylene glycol and suitable amines are piperazine, piperidine, pyridine, hexamethylene diamine, diisopropylamine, guanidine, dicyandia
Patent GB-1460892-A (GB)
Title: Apparatus for m'asuring the electrical conductivity of a  liquor sample
IPC: G01N27/07
Filed: 1973-01-19
Abstract: 1460892 Conductivity cell MALCOM-ELLIS (LIVERPOOL) Ltd 18 Jan 1974 [19 Jan 1973] 2815/73 Heading G1N A conductivity cell comprises six, linearly aligned, spaced electrodes 28-33. The second and third electrodes 29, 30 are connected to a high impedance amplifier 41 to measure the voltages (proportional to resistivity) produced by current between constant current source 42 connected to fourth electrode 31 and earthed first electrode 28. A second constant current source 43 of indentical magnitude a phase to source 42 but of low impedance is connected to fifth electrode 32 and the sixth electrode 33 is earthed. The constant current may be alternating or direct. The annular electrodes may be fixed in an annular container 22 with flow direction as shown, the assembly being inside and attached to the wall W of a fluid containing vessel. In alternative embodiment the electrode may be on the inside of a pipe or in a container for measuring discrete samples.  The earthing if both outer electrodes removes the need for insulation between the cell and a liquid bath.
Patent GB-808547-A (GB)
Title: Snap action electric switch having an indicator
IPC: H01H61/06
Filed: 1957-01-25
Abstract: 808,547. Thermal switches; indicators for switches. SIGNAL-STAT CORPORATION. Jan. 25, 1957 [Sept. 5, 1956], No. 2870/57. Class 38 (5). [Also in Group XXXVIII] In a snap-action switch, such as that described in Specification 761,713, [Group XXXII], a thin spring strip 50 is secured to one corner 17 of the vane 10 so that as the vane snaps over dead centre the strip 50 vibrates to give an audible indication of the switch operation. Specification 762,046 also is referred to.
Patent GB-558179-A (GB)
Title: Improvements in and relating to electric, vehicular head and other lamps for emitting diffused light
IPC: F21V11/16
Filed: 1942-06-19
Abstract: 558,179 Vehicle lamps. DENNIS, E. D. June 19, 1942, No. 2875/43. Divided out of 558,062. [Classes 39 (ii) and 75 (iv)] A vehicle lamp comprises a standard type of lamp casing containing a parabolic reflector 1 fitted with an electric bulb 2 either rendered wholly translucent by a white heat-resisting paint or completely enclosed by a translucent shroud and fitted with a mask having reflecting elements to amplify the light issuing in near and wide angular zones. In the construction shown in Fig. 1 the masking 20 is fitted with reflecting "toothings" 21 and the bulb 2 is surrounded by a shroud consisting of two hemispherical members 3, 7 threaded together or having a bayonet slot connection. The member 3 may be of opalescent glass or fire-resistant plastic material and is mounted on a flanged metal cap 4 formed with depressions enabling it to be slipped over the bayonet pins on the bulb cap. The cap 4 may be fitted with securing screws. A plano-convex front lens 9 or plain front 'glass 10 may be provided. Fig. 4 shows another construction in which the mask device described in Specification 558,062 having side reflector plates 12 and "toothings" 13 is secured to the front of the lamp casing. A transparent glass sheet 17 is supported by brackets 16 behind the louvre units.
Patent GB-605916-A (GB)
Title: The manufacture of substituted benzhydryl ethers
IPC: C07D295/088
Filed: 1946-01-29
Abstract: Compounds of the general formula <FORM:0605916/IV(b)/1> in which R1 and R2 are the same or different substituents and represent hydrogen, an alkyl or an alkoxy radical containing 1 or 2 carbon atoms, R3 and R4 are the same or different alkyl radicals containing 1 to 3 carbon atoms or may form part of a saturated ring such as piperidine, a methyl substituted piperidine, morpholine, a methyl substituted morpholine or thiomorpholine are obtained by reacting a benzhydryl halide, e.g. the bromide with an amino ethanol of the formula <FORM:0605916/IV(b)/2> in the presence of an acid binding agent, e.g. an alkali metal carbonate.  Either an excess of the aminoalcohol or toluene, xylene, benzene and dibutyl ether may be used as solvents. The reaction is preferably carried out between 100-175 DEG  C. Detailed examples are given of the preparation of b -dimethylaminoethyl, b -N-piperidylethyl, b -N-(3-methylpiperidyl) ethyl, b  - N - morpholinylethyl, b  - diethylaminoethyl, b  - di - n - propylaminoethyl - p,p1 - dimethyl and b  - methylethylaminoethyl - o - methoxy benzhydryl ether.
Patent GB-489381-A (GB)
Title: Improvements in photographic objectives
IPC: G02B13/18
Filed: 1937-02-01
Abstract: 489,381. Lenses. DJIAN, G. F. Feb. 1, 1937, No. 2955. Convention date, Feb. 13, 1936. [Class 97 (i)] An objective of large aperture comprises a front convergent member consisting of one or more lenses, and in rear of this member a second member consisting of a front convergent lens and a rear divergent lens, the front surface of the convergent lens comprising a central spherical portion and a peripheral aspherical portion the curvature of which increases as the distance from the axis increases, the thickness of the second member being at least 0À4 of the focal length of the objective and the refractive index of the divergent lens of this member being at least 0À15 greater than that of its associated convergent lens. The convergent lens of the second member may be made up, as shown, of a spherical part b and sections m, with aspherical surfaces and of the same refractive index as the part b. Alternatively this lens may consist of a central spherical section surrounded by a number of concentric rings with aspherical surfaces. A rear convergent member may be added, having a focal length less than that of the first member and serving to increase the aperture. When this added member has a plane rear surface a liquid may be interposed between this surface and the film on which the image is formed. Data are given for four examples having apertures greater than F /1, that of the example shown being F/0À6.
Patent GB-998288-A (GB)
Title: Novel azapentanols and a process for the manufacture thereof
Inventor: OSBOND JOHN MERVIN
IPC: C07C215/30
Filed: 1963-01-24
Abstract: The invention comprises compounds of the formula <FORM:0998288/C2/1> wherein R1 represents a phenyl, 3-(lower alkyl)-phenyl 4-(lower alkyl)-phenyl or 3,4-(lower dialkyl)-phenyl group and R2 and R3, which may be the same or different, represent a hydrogen atom or a methyl or ethyl group, and the acid addition salts thereof.  The compounds may be prepared by reducing a halo-ketone of the formula <FORM:0998288/C2/2> to the R1-substituted halohydrin, using aluminium iso-propanol or an alkali metal borohydride, which is then condensed with an amino of the formula <FORM:0998288/C2/3> wherein R20 and R30 represent methyl or ethyl groups or known hydroxyl-group-protecting radicals, or by condensing the said halo-ketone with said amine and catalytically reducing the azapentanone to the corresponding hydroxy compound, followed, if necessary, by the removal of any protecting groups and conversion to acid addition salts.  The preferred hydroxyl-protecting group is the benzyloxy group.  In an alternative method, the azapentanol is obtained by condensing the R1-substituted epoxy compound, made by dehydrohalogenating the halohydrin, with the said amine.  Suitable acid addition salts are the hydrochloride, hydrobromide, sulphate, phosphate, tartrate and citrate. Examples describe the preparation of 1-(3,4-dimethylphenyl)-, 1-phenyl-, and 1-(3-methylphenyl) - 5 - (3,4 -dimethoxyphenyl) - 3 - azapentanol - (1) and 1 - (3,4 - dimethylphenyl)-5 - (3 - methoxy - 4 - hydroxy - phenyl) - 3 - azapentanol - (1) and - 5 - (3 - hydroxy - 4 - methoxy - phenyl) - 3 - aza - pentanol - (1) and the hydrochlorides thereof. The invention includes pharmaceutical preparations, comprising a compound of the invention in admixture with a compatible carrier, which are used as hypotension agents.  A preparation in the form of tablets is described.
Patent GB-556524-A (GB)
Title: Improvements in buildings
IPC: E04B1/21
Filed: 1943-04-09
Abstract: 556,524. Portable buildings. SODEN, A. W. April 9, 1943, No. 3062/42. [Class 20 (i)] A portable building is constructed from preformed concrete frame-member uprights a each with a bracket b at its upper end with an offset face substantially vertical to which is attached a precast concrete cantilever roof member c extending towards a ridge where opposed roof members are joined. Specification 555,765 is referred to.
Patent GB-343708-A (GB)
Title: Improvements in or connected with weighing machines
IPC: G01G21/00
Filed: 1930-01-29
Abstract: 343,708. Automatic - feed weighers. SIMON, W. G. and SIMON, F. R., Phoenix Works, Vernon Road, Basford, Nottingham. Jan. 29, 1930, No. 3064. [Class 143.] In an automatic-feed weigher of the kind in which the material in the weighing-receptacle 24 is discharged through a gate 29 at the base of the receptacle, the feed to the receptacle is controlled by a valve comprising a curved plate 17 carried by pivoted plates 13 and movable in grooves in the feed shoot 10, the valve being normally retained in open position by the abutment of an arm 27, of a weighted lever 26, with a catch 18 pivoted to the valve. The lever 26 is pivoted to the receptacle and, as the latter sinks at the completion of a weighment, releases the catch 18 to allow the valve to close under the weight of a pivoted bar 22. The latch of the discharge gate is tripped mechanically, electrically or manually, and the gate in opening rotates the lever 26 clockwise by means of a connecting link 28. After discharge, the receptacle rises and the discharge gate closes causing the arm 27 to engage the catch 18 and open the feed valve, which has been relieved of the weight of the bar 22 by a member 25 upstanding from the receptacle. The machine may be provided with a dribble-feed device.
Patent GB-1402841-A (GB)
Title: Bromine containing ethylenically unsaturated compounds bromine- containing interpolymers photoconductive compositions and electrophotographic elements
IPC: G03G5/082
Filed: 1972-07-25
Abstract: 1402841 Bromine-containing copolymers NATIONAL STARCH & CHEMICAL CORP 25 July 1972 [4 Aug 1971] 03139/74 Divided out of 1402139 Heading C3P [Also in Divisions C2 and G2] A bromine-containing interpolymer comprises residues derived from at least one brominecontaining ethylenically unsaturated compound of the formula or of the formula wherein R 1  is H or CH 3 , and R 2  is C 1  to C 4  alkyl and at least one monomer which does not contain bromine. Specified monomers which do not contain bromine are those of the formulae and wherein R 1  is H or CH 3 , R 4  is H, Cl or t-butyl, R 5  is C 1  to C 8  alkyl or C 3  to C 8  cycloalkyl, and Z is H or COOR 5 . They may be prepared by free radical initiated polymerization or by other conventional polymerization procedures. Preferred procedures are free radical initiated solution polymerization, bulk or pearl polymerization and emulsion polymerization. Examples are given which illustrate the preparation of these interpolymers. They are useful in photoconductive compositions.
Patent GB-1240983-A (GB)
Title: Drilling apparatus
IPC: E21B15/04
Filed: 1970-01-22
Abstract: 1,240,983. Boring earth &c.. MOBILE DRILLING CO. Inc. 22 Jan., 1970 [14 Feb., 1969], No. 3186/70. Heading E1F. Mobile drilling apparatus used particularly for taking earth samples, comprises a vehicle 10, a tower 13 mounted on the vehicle, a carriage 27 movable along the tower, a rod 42 on the carriage and extending laterally of the tower, and a second carriage 40 movable on the rod and carrying a drill 51. The tower is pivoted to the vehicle and may be moved by a hydraulic jack (not shown) from a horizontal to a vertical or inclined drilling position. The carriages 27, 40 are respectively moved by hydraulic jacks 35, 80. The drive for the drill comprises fluid motor 56, flexible coupling 57, transmission 58, flexible coupling 60 and bevel gearing 61. The tower has a crown block (not shown), the arrangement permitting tools to be moved from a borehole such as 52 after the drill has been moved transversely as shown.
Patent GB-768011-A (GB)
Title: Movable breech block and insert for rifles and the like small arms
IPC: F41A19/03
Filed: 1955-02-03
Abstract: 768,011. Smallarms. GEVARM. Feb. 3, 1955 [June 16, 1954], No. 3223/55. Class 119. In an automatic rifle with a breech block 1, Fig. 2 recoiling against the action of a return spring 2, a spring-guiding cylindical insert 3 is provided and is located in a bore 1<SP>1</SP> in the rear end of the breech block 1 so as to act as an additional inertia mass for the breech block when high charge cartridges are used, the insert 3 being reversed and located in the plug end 4 of the breech case 5 as shown in Fig. 3 so as not to modify the inertia of the breech block when normal charge cartridges are used. The breech block 1 is formed with a notch 1<SP>2</SP> Fig. 1 which is engaged by the sear 6 in the cocked position, the sear 6 being pivoted freely at 7 and being engaged at 6<SP>1</SP> with a nose 8<SP>1</SP> on the trigger 8.
Patent GB-280072-A (GB)
Title: Improvements in and relating to sound reproducing machines
IPC: G10K13/00
Filed: 1927-02-04
Abstract: 280,072. Bailey, W. C. Feb. 4, 1927. Tone-arm joints; horns, multiple arrangements of.-Relates to gramophones of the kind in which there are two or more diaphragms, a separate tone-arm being provided for each. According to the invention the tone-arms are arranged with their wider ends bent coaxially and substantially vertically in opposite directions, the bent portions engaging pivotally with the ends of tubes connected with the respective horns, while the sound-boxes are connected to the tone-arms by means of goosenecks in the ordinary manner. The Figures shows a machine in which a double sound-box j is mounted by means of goosenecks n. on the ends g<3>, h<3> of tone-arms g, h, which are joined by a bar k, the wider ends being also joined at and arranged as shown in Fig. 3. The tone-arms are connected by ballbearing joints to fixed tubes e. f, each of which lead to a neck b<1> or c<1> of separate horns. One of these is designed for the treble and the other for the bass tones.
Patent GB-353925-A (GB)
Title: Improved means for controlling the temperature of the cylinders and combustion chambers of internal combustion engines
IPC: F01P3/22
Filed: 1930-01-30
Abstract: 353,925. Cooling cylinders. SAUNT, T. W. L., 24, Hadleigh Road, Leigh-on-Sea. Jan. 30, 1930, No. 3249. [Class 7 (ii).] In a cooling system in which steam, formed either in a space above, or in a drum b connected in series with, the cylinder jackets a, is released by an adjustable valve e, the condenser comprises a tank g filled with the cooling liquid and connected near the top to a pipe h by which the condensate returns to the cylinder jackets. A pump i assists the flow through this pipe, and a pump k may be provided to reduce the pressure in the jackets or drum. A safety valve l may also be provided.
Patent GB-563513-A (GB)
Title: Inserted tooth hobs and such like tools, and the manufacture thereof
IPC: B27G13/04
Filed: 1943-03-01
Abstract: 563,513. Milling-cutters; tools and tool - holders. SLATER, W. March 1, 1943, Nos. 3284 and 12456. [Class 83 (iii)] Blades 3 for an inserted tooth milling-cutter, hob, broach, tap, lathe or like tool are mounted in contact with each other on a body 1 having longitudinal inclined surfaces 2 thereon, such that the outer ends of the blades may be turned, ground or otherwise machined on a circular surface 4 when the body is rotated, reversal of the blades on the body causing them to occupy positions 3<1> in which their outer ends are backed off. The blades may be mounted, after machining on the body 1, in a holder of normal type which has been modified to receive them and the leading faces 8 of,the blades may have negative rake as shown, or may be ground, as at 6, either in situ or when dis-assembled, to provide positive rake. The front and rear sides of the blades diverge and the front face 8 . makes an angle with a radius 9 which is half the included angle of the two sides. The blades may be clamped by end rings 12 secured to the body 1 by screws 13 and inserted in annular recesses in the body and blade ends, conically pointed pins 14 being provided on the rings to engage bevelled recesses 15 in the blades to force them radially inwards. The longitudinal shape of the blades may be straight or formed, as shown at 16 in Fig. 2, or threaded for screw milling. In a holder of normal type, the blades have bevelled ends and are held and forced radially inwards by internally coned rings, one screwing on the cutter body and the other being pressed axially by a separate nut screwing on the body. A central ring may engage grooves in the blades and body to locate the blades axially.