baber/WOPTO huggingface dataset:
Patent GB-918402-A (GB)
Title: Spark plugs
IPC: H01T13/39
Filed: 1961-10-27
Abstract: 918,402. Sparking plugs. GENERAL MOTORS CORPORATION. Oct. 27, 1961 [Nov. 8, 1960], No. 38517/61. Class 7(4) A sparking plug has a composite centre electrode assembly comprising a spindle 16 arranged coaxially within a substantially constant diameter portion of a centre-bore in the plug insulator, the spindle having a firing tip portion 28 which extends from the end of the bore and an intermediate shank portion which is of increased diameter between its ends, and the space between the shank portion and the wall of the bore is filled with a body of metal of good heat conductivity. The firing tip may be of platinum, the shank portion may be of nickel and the metal between the bore wall and the shank may be silver. A conductive glass seal 46 comprising a mixture of glass and nickel or copper powder abuts the upper surface of the body 44 of silver. The end 10 of the shell has secured thereto a pair of platinum electrodes 18 of which one is shown.
Patent GB-983243-A (GB)
Title: Detergent briquettes
IPC: C11D1/14
Filed: 1961-10-27
Abstract: Readily disintegrable detergent briquettes are obtained by mixing together a normally solid water-soluble anionic synthetic detergent with a normally solid water-soluble inorganic salt to produce a particulate composition containing up to 21%, preferably 2-15%, moisture, moistening the particles with 4-12%, preferably 4-10%, added water to raise the moisture content to 4-25%, preferably to 8-19%, agglomerating the particles into a lightly compacted briquette at a pressure low enough to form a disintegrable briquette, e.g. 3-100 p.s.i., preferably 15-50 p.s.i., and then applying to the briquette 1-5% by weight of a water-soluble synthetic organic film-forming polymer, preferably a 10-25% aqueous solution of a polyvinyl alcohol having a weight average degree of polymerization of 30-300 and a polyvinyl acetate content of 10-30%, so as to form on the briquette surface a water-soluble film, preferably having an average thickness of 0.05-0.8 mm., having a strength sufficient to make the briquette resistant to breakage when dry but allowing ready solubility in water.  Preferred compositions contain 20-40% of such detergents as sodium, potassium or magnesium alkyl sulphates, N-higher fatty acyl-N-methyl taurides, a -sulphonates of higher fatty acids, and n-higher alkyl sulphonates, sodium C12- 20 alkyl benzene sulphonates being especially favoured; 20-70% of the inorganic salt, e.g. sodium sulphate and chloride, potassiumsulphate, and particularly sodium tripolyphosphate and pyrophosphate; and 1-30% of various other adjuvants including sodium silicate (Na2O : SiO2 = 0.43).  Film-forming polymers other than polyvinyl alcohol which may be used include polyvinylpyrrolidene, sodium carboxymethylcellulose and hydroxypropylmethylcellulose. the particulate composition which is to be pressed is suitably obtained by atomizing a slurry mixture into a drying gas to the required moisture content; after the additional water has been sprayed on to the tumbled particles, aggregates over 4 mm. diameter are removed leaving particles within the range 0.1-4 mm., and these are agglomerated to briquettes of a density of 0.4-0.7 g. per c.c.
Patent GB-1151522-A (GB)
Title: Power Tool Guiding Apparatus
Inventor: BLAKESLEY LESLIE FRANCIS
IPC: B23D45/02
Filed: 1965-09-10
Abstract: 1,151,522. Sawing. BLAKESLEY REID (HIRE CO.) Ltd. 1 Sept., 1966 [10 Sept., 1965], No. 38671/65. Heading B5L. Apparatus for guiding a power-operated rotary saw 35 or the like in relation to a worktable comprises two parallel rails 19, 20 each having two relatively inclined upwardly extending faces 19, 20 and a carriage 21 having three wheels 23, 24, 25, each formed with a peripheral V-section groove and being rotatable about parallel axis, two of the wheels 23, 24 being aligned with one another so that their grooves are in a common plane, being prevented from any appreciable axial movement and arranged to run along one of the rails, and the other wheel 25 being capable of a limited axial movement and arranged to run along the other rail. The rails 19, 20 are of rectangular hollow section and are carried by brackets 17 mounted on uprights 15, 16 secured to crossmembers 4 of a collapsible table. The crossmembers extend between longitudinal outer members 2 and a pair of angle members 3 also extend between the cross-members and define therebetween a slot for clearance of the rotary saw during cutting of a panel supported on the table. Additional support members 5, 5a extend between the angle members and the longitudinal members. A third angle member 31 is removably mounted between the angle members to vary the width of the slot. The carriage has two inverted U-sections 26, 27 joined by abase 33 on which an electric motor 34 for driving the saw blade 35 is mounted. The two wheels 23, 24 are mounted on pins in the section 27 for engaging the rail 19, and the wheel 25 is mounted on a pin 31 in the section 27. The wheels 23, 24 are prevented from moving axially relative to the carriage, and the wheel 25 has freedom for a limited axial movement. The panel to be cut is positioned with its end engaging abutments 14a, 14b having a gap therebetween providing clearance for the saw blade, and with its side engaging an adjustable fence 37. The panel can be held against the table by a clamp 46 mounted on pivoted cranks 47 while it is cut by the saw as the carriage is moved along the rails by manual or power means. The table 1, 2 has depending spigots 9 releasably received within the upper ends of legs 7 which are forced from the table by struts 12.
Patent GB-1020814-A (GB)
Title: Transparent intensifier foils for use with photographic materials for recording x-rays,ª-rays or corpuscular rays
Inventor: BLANK RUDOLF
IPC: G21K4/00
Filed: 1962-10-12
Abstract: A transparent intensifier foil for photographic materials for recording high-energy radiation, comprises a foil or a film forming polymer which contains aromatic rings, the foil containing dissolved therein organic fluorescing substances capable of converting the high energy radiation into light having a wavelength of between 200 to 600 mm .  The foil preferably also contains an organo metallic compound and/or a metal salt of an aliphatic carboxylic acid, the metallic component of which is an element of the second or fourth group of the Mendeleef Periodic Table, this serving to further improve the intensifying action of the foil. Suitable film forming polymers are polystyrene, polyvinyl toluene and polycarbonates.  Suitable organic fluorescent substances are anthracene, phenanthracene, chrysene, fluorene, triphenylene, terphenyl, coumarines, thiophene dioxides, benzthiophenedioxides, quaterphenyl, di- and tetra-phenyl ethylene, dinaphthyl ethylene, diphenyleneoxide, diphenyl acetylene, stilbenes, phenyl oxazoles, phenyl oxadiazoles and pyrazolines or their derivatives.  Suitable organo-metallic compounds are lead and tin tetra-alkyl and tetra-alkyl compounds, lead dialkyl, lead diaryl, tin dialkyl and tin diaryl salts of stearic, oleic, lauric and maleic acids, and also the barium, cadmium, tin and lead salts of stearic, oleic, lauric and maleic acids.
Patent GB-368881-A (GB)
Title: Improvements in and relating to the manufacture of coke
IPC: C10B57/04
Filed: 1930-12-24
Abstract: 368,881. Materials for making coke. SMITH, T. B., Bassaguard, The Grove, Marton-in-Cleveland, Yorkshire, and DORMAN, LONG, & CO., Ltd., Zetland Road, Middlesbrough. Dec. 24, 1930, No. 38943. Drawings to Specification. [Class 55 (ii).] A metallurgical coke of a stratified nature having alternate porous and dense layers is obtained by carbonizing a mixture of finely divided coking coal, and a non-coking material which is added in a quantity proportioned to the amount of resinous binding material in the coal, and at least 15 per cent of the coal. The materials are ground so that at least 80 per cent pass a 60-mesh sieve, but a higher degree of subdivision has the effect that the proportion of non-coking material to the coking coal may be increased, so that, when 80 per cent pass a 200-mesh sieve, the proportion of non-coking material may be 50 per cent. If damp coal is used, this should be mixed with a proportion of dry coal before the mixture with the non- coking material is made. Suitable non-coking materials are coke breeze, anthracite and non-coking coals, or blast furnace flue dust, fine ores, or precipitated calcium carbonate. To ascertain the correct proportions a test may be made in a conical silica crucible which leaves a coke of fairly uniform character.
Patent GB-986279-A (GB)
Title: Improvements in or relating to a machine tool bed cover
IPC: B23Q11/08
Filed: 1962-10-16
Abstract: 986,279. Machine-tool details. T. H. BOWERS. Aug. 15, 1963 [Oct. 16, 1962], No. 39037/62. Heading B3B. A machine-tool bed cover comprises two portions X, Y folded to form a succession of ridges and valleys, the ridges of portion X being opposite the valleys of portion Y, forming a flexible cover which may be used between slides or between a slide and a fixed part. The cover may extend between plywood formers 10 having slots 11 lined with brass 12 for engaging the bed. Alternatively, the several sections required for a complete cover may be formed together and secured over the formers. As shown, Fig. 2, a section of the cover is made by sandwiching between flexible sheets trapezium-shaped reinforcing panels and stitching the sheets together along the spaces between the panels. Five portions X, Y are provided, corresponding with the edges a, c, e, g and i of the formers 10, and four corner zones result from folding the section. These correspond with the edges b, d, f, h of the formers and comprises zig-zag ridges joining those in the adjacent portions.
Patent GB-1185178-A (GB)
Title: Improvements in or relating to Brake Pad and Brake Pad Carrier Combinations for Disc Brakes
IPC: F16D69/04
Filed: 1967-09-05
Abstract: 1,185,178. Brake pad and carrier combinations. ALFRED TEVES G.m.b.H. 5 Sept., 1967 [28 Jan., 1967], No. 39082/69. Divided out of 1,185,175. Heading F2E. In a brake pad and brake pad carrier combination having a substantially rectangular metal carrier 1 and a substantially rectangular brake pad 3, the shorter side edges of the carrier are bent at right angles to the plane of the piece of metal forming the carrier 1 and the extremities of these edges are further bent so as to dig into the end faces of the brake pad when the combination is assembled and suspension eyelets 2 are provided in the piece of metal for mounting the combination in a disc brake assembly.
Patent GB-846822-A (GB)
Title: A hollow shaft or trunnion having a lock-nut on one end
IPC: F16B39/02
Filed: 1958-12-04
Abstract: 846,822. Locking nuts. GENERAL MOTORS CORPORATION. Dec. 4, 1958 [Dec. 11, 1957], No. 39124/58. Class 89(1). A nut 13, Fig. 2, is locked on the screwed-end 14 of a hollow-shaft 11 by a headed-pin 21 inserted into aligned-holes 19, 18, in the end and the nut, from inside the shaft, and held by a resilient retaining-ring 25 inserted in a groove 27 and abutting the pin-head. The head is received in a hole 26 in a ring 23 inserted in the shaft-end, and having the groove 27. The nut has a number of holes 18 equally-spaced therearound, and the shaft-end has a different number of holes. In a modification, the holes 18 are replaced by slots in the free-end-face of the nut, and the ring engages a groove in the innersurface of end 14, the pin-head being cut-away to receive the ring. In another arrangement, the pin-heads 59, Fig. 6, are engaged by a sleeve 61 held in a recess in said end by a ring 62.
Patent GB-856805-A (GB)
Title: Heterocyclic vat dyestuffs
IPC: C09B3/00
Filed: 1956-12-24
Abstract: The invention comprises multicomponent mixtures of vat dyestuffs of the formula:  <FORM:0856805/IV (c)/1> wherein one adjacent pair of Y valencies are bonded to hydrogen atoms, the other adjacent pair of Y valencies are bonded to:  <FORM:0856805/IV (c)/2> in which each of the -NH- groups may occupy one or other of the two a  positions shown, R is a nulcearly bonded residue of a vattable polycyclic ketone, and n is 2, 3 or 4.  The dyestuffs are made by reacting a nuclearly di-, tri- or tetra-halo-substituted vattable polycyclic ketone with 2, 3 or 4 moles respectively of a mixture of compounds of the above formula shown in brackets wherein R is replaced by hydrogen, in an inert organic diluent and in the presence of an alkaline acid-binding agent and a copper catalyst.  The dyestuffs dye cotton from an alkaline hydrosulphite vat black, grey, brown and blue shades. Specification 835,908 is referred to.
Patent GB-1527754-A (GB)
Title: Indexing mechanisms
IPC: F16H7/06
Filed: 1975-09-25
Abstract: 1527754 Toothed gearing J H BREMS 25 Sept 1975 [26 Sept 1974] 39233/75 Heading F2Q In an intermittent rotary drive mechanism a continuously-rotated input shaft 104 on a fixed axis A1 is coupled by sprockets 122, 118 and chain 120 to a shaft 112 of movable axis A2, located relatively to A1 by a radius arm 106, while a spur gear 126, together with its stub shaft 128, is fixedly secured to the shaft 112 upon an eccentric axis A3, and at the same time the input shaft 104 carries a spur gear 152 meshed with a gear 154 on a fixed shaft 156, thereby driving a cam 160, from which a cam follower 162 derives a cyclic motion between two levels of cam contour, with this motion linked to provide angular motion of a cranked arm 144, of which a portion 142 carries an arcuate recess 140 engaged upon the stub shaft 128, and causing the spur gear 126 to be drawn alternately into mesh and out of mesh with an output gear 130 on a fixed axis A4. The pitch circle radius of gear 126 is approximately equal to the spacing between axes A2 and A3, and with the locus of axis A2 constrained by arm 106, and the spacing between axes A3 and A4 set by arm 144, the sprocket 118 and gear 126 perform a gyrating movement with the axes A2 and A3 revolving about each other. During periods when gears 126 and 130 are meshed together, the resulting motion of the output gear 130 is one of cyclically varying angular velocity, with a brief stationary dwell period once during each basic cycle comprising one revolution of shaft 112. The gear ratios and the configuration of cam 160 are chosen such that gear 126 is transferred into mesh and out of mesh with gear 130 only during dwell periods thereby providing a means for imposing an extension of the dwell period, to embrace one or more entire basic cycles. During these periods, while gear 126 continues to revolve out of mesh, gear 130 may be held stationary by a toothed segment 150, engaged by the arm 144. In another embodiment, a spur wheel on axis A3 engages an internal ring gear forming the output wheel, and a stub shaft on axis A3 acts directly as a cam follower, engaged in a facial cam slot of a cam wheel mounted coaxially upon the output wheel axis A4. In a further embodiment, chains constantly engaged upon sprockets are used in place of spur gears, and the output drive becomes disengaged by the withdrawal of an eccentrically disposed key pin, actuated by a facial cam.
Patent GB-889816-A (GB)
Title: Improved heat meter
IPC: G01K17/04
Filed: 1959-11-20
Abstract: 889,816. Measuring quantity of heat electrically. RIELLO F. LLI OFFICINE FONDERIE. Nov. 20, 1959 [Nov. 29, 1958], No. 39396/59. Class 40 (1). The amount of heat emitted by a heating system utilizing a fluid is measured by a meter which indicates the energy consumed in heating fluid passing through a by-pass from the outlet of the system to the same temperature as that of the fluid at the inlet to the system. As shown, water from a boiler 9 heated by a burner 10 is circulated by a pump 13 through radiators 14 when a valve 11 is opened either manually or automatically by a thermostat 12 connected to an electric supply line 21. A thermocouple 18 at the inlet to the radiator system is connected to a relay 20 which is also connected to the supply line 21 and may contain an amplifier. By-pass pipes 16 on each side of a throttle member 15 in the outlet from the radiator system lead to a chamber 17 containing a second thermocouple 19, connected to the relay 20, and a resistor 6 connected to a meter 8 which is also connected to the relay 20. The relay 20 is biased so as to close an electric contact when the temperature indicated by the thermocouple 19 is lower than that indicated by the thermocouple 18 and so supply power to the resistor 6 - until the temperatures are equal. The meter 8 integrates the energy consumed by the resistor 6 and provides a reading which is directly proportional to the amount of heat supplied by the radiators 14, thus providing a basis for charging for same. The entry of fluid to the chamber 7 may be made intermittent under the control of a timing device, and the relay 20 may be replaced by a saturable inductor which varies the supply to the resistor 6. The fluid in the by-pass circuit may be heated by the passage of current therethrough, the resistor 6 being dispensed with. The thermocouples 18 and 19 may be replaced by expansion thermometers.
Patent GB-1237504-A (GB)
Title: Desensitizer composition
IPC: G03F7/32
Filed: 1969-08-08
Abstract: 1,237,504. Photo-lithography. FMC CORP. Aug. 8, 1969 [Aug.9, 1968], No.39753/69. Heading G2M. Acidic aqueous compositions for de-sensitizing pre-sensitized printing plates contain (1) a gum colloid (e.g. gum arabic), (2) sufficient H 2 O 2  to prevent foaming, (3) HF, and optionally (4) one or more other acids (e.g. H 3 PO 4 ).
Patent GB-1174878-A (GB)
Title: Improvements in or relating to Contact-Making Devices
IPC: H02B11/04
Filed: 1968-08-21
Abstract: 1,174,878. Two-part couplings. ALBISWERK ZURICH A.G. 21 Aug., 1968 [15 Dec., 1967], No. 39960/68. Heading H2E. [Also in Division H1] A device for making contact between slide-in units and equipment racks, for either currentcarrying or earthing purposes, consists of a lever 31 pivoted to one piece of apparatus 1 (which is movable on rollers 11) and pressed against the other 2 by a spring 6. A contact 3, rotatably mounted on the end of the U-shaped lever 31, bears against a contact plate 4 when the slide-in unit is in position, maintaining contact in spite of vibrations.
Patent GB-1075936-A (GB)
Title: Method of flow forming polyurethane and like polymers
IPC: B05D1/26
Filed: 1964-10-01
Abstract: 1,075,936. Casting polymer sheeting. R. H. SACHS. Oct. 1, 1964 [March 9, 1964], No. 39969/64. Heading B5A. [Also in Division B2] In the embodiment shown, flowable polyurethane from a hopper 12 received by a continuously moving endless belt 11, preferably made of P.T.F.E. or stainless steel, is initially shaped by a doctor blade 15, e.g. to convex cross-sectional form or to a shallow inverted V-form, and is subjected to pressure within the range 1/ 10 -8 oz./sq. inch by a rotating roller 16 hydraulically controlled for vertical adjustment and coated with a lubricant, e.g. motor oil, from a nozzle 17 to prevent sticking between the roller 16 and the layer of polyurethane. According to the invention, the action of roller 16 causes levelling of the layer and squeezing out of air pockets or bubbles therein by substantially transverse dynamic working of the layer. Preferably the rotational speed of roller 16 is such that the velocity of the effective surface thereof is in the same direction and somewhat greater than that of conveyer 11, although a slower velocity than that of the conveyer is envisaged to cause burnishing of the layer surface. Further conveyers 14 may be provided which move at the same speed as conveyer 11 and act as lateral confinements. To produce sheeting, the conveyer 11 is provided with a release agent and contoured sheeting may be produced by using a contoured conveyer and/or a suitably shaped doctor blade with a battery of rollers 16. The rollers may be replaced by an endless belt slightly angled to conveyer 11. Action by roller 16 occurs when the polyurethane is partially cured and final curing may be hastened by heating, e.g. using infra-red heaters. To form a coated belt, the belt of conveyer 11 is initially provided with a bonding agent. In the embodiment of Figs. 4 and 5 (not shown), a former (25) is coated with polyurethane from a nozzle (120) and the layer is shaped to form a tread by means of a moulding-roller (27). The layer may be bonded to former (25) to form a wheel or an annular structure, e.g. a packing ring, may be formed by coating former (25) with a release agent. An alternative embodiment is described using a flat-faced roller (23), Fig. 3 (not shown).
Patent GB-1469928-A (GB)
Title: Detection of seismic vibrations
IPC: G01V1/00
Filed: 1974-08-13
Abstract: 1469928 Recognition of vibrations DEFENCE SECRETARY OF STATE FOR 13 Aug 1974 [23 Aug 1973] 40094/73 Heading G1G [Also in Division G4] Seismic vibrations are analyzed on a time and amplitude basis to detect a person walking. In the embodiment shown, seismic surface waves picked up by geophone 1 are identified as being produced by a person walking, if the  geophone output amplitude exceeds the general background noise level in three successive intervals each of duration in the range “ to 1 second, corresponding to the normal interval between footsteps. Comparator 5 has a threshold level set by unit 7 to be just above the continuous background noise level. When the threshold is exceeded, monostable 9 is tripped. Logic unit 11, detailed in Fig. 3, (not shown) actuates a lamp, buzzer or radio transmitter, constituting indicator 13, if the intervals between four successive pulses from monostable 9 are each within the stated range. Unit 7 comprises voltage comparator 15, monostable 17, R-C integrator 19, amplifier 21 and voltage divider 23 all connected in a feedback loop which automatically sets the reference level for comparator 15 about equal to the mean background noise level. Amplifier 21 output is higher than this reference level and provides the threshold level for comparator 5.
Patent GB-1502863-A (GB)
Title: Drum-type sand classifier
IPC: B03B5/56
Filed: 1975-10-02
Abstract: 1502863 Wet separating; settling T MOORI 2 Oct 1975 [2 Nov 1974 21 April 1975] 40296/75 Headings BID and B2H An apparatus for recovering classified sand from muddy water or for removing both sand and mud to leave clear water comprises a rotatable drum 1 having an outlet at each end, means 2 located concentrically within the drum for feeding muddy water containing sand into the drum, means for transferring sand which settles to the bottom of the drum towards the rear end of the drum, and means for discharging the transferred sand through the rear outlet B. The inner wall of the drum is provided with a plurality of helicoid blades 7 some of which have baffle plates 16 secured thereto. Blockade plates (33) Fig. 5 (not shown) are secured to and between each pair of adjacent blades 7. At the rear end of the drum is a plurality of paddles 8 having apertures 9 and formed by extensions of the blades 7. The feed pipe 2 has a plurality of apertures 5 at its rear end. In use, the muddy water introduced into the rotating drum through the pipe 2 flows over the baffle plates 16 and leaves the drum through the front outlet A. The sand particles settle to the bottom of the drum and are transferred to the rear end of the drum by the blades 7. At the rear end the sand is lifted by the paddles 8 and dropped onto a cone 10 having partitions 12 which directs the sand through the outlet B.