baber/WOPTO huggingface dataset:
Patent GB-157759-A (GB)
Title: Improvements in engine starters
IPC: F01B27/06
Filed: 1921-01-10
Abstract: 157,759. Bendix, V. June 18, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Turning-gear. - In an electric starter, the rotation of the armature shaft 1 effects the movement of a pinion 6 into driving engagement with a gear ring 12 slidable peripherally on the engine fly-wheel 13 and yieldingly connected to it by springs 14. In one form, Fig. 1, the pinion 6 is free on the shaft 1 and is slidably connected by a key 8 to a nut 7 in engagement with a threaded part 2 of the shaft 1, a spring 9 being interposed to enable the pinion to yield in case of its. teeth clashing with those of the ring 12. In a modification, Fig. 4, the driving- pinion 23 is threaded to engage a hollow screw shaft 19, which is splined on the armature shaft 17, so that it is rotated positively by the shaft but is slidable against a spring 20 if the gear teeth clash.
Patent GB-1195331-A (GB)
Title: Electrostatic Eliminators
Inventor: HEALEY LEONARD EDWARD
IPC: H05F3/04
Filed: 1968-01-11
Abstract: 1,195,331. Discharging static electricity. DETEXOMAT Ltd. 8 Jan., 1969 [11 Jan., 1968], No. 1652/68. Heading H1X. The A.C. corona discharge points 11 in an electrostatic eliminator for treating lightsensitive material 14 e.g. photographic film are mounted in a box 12 provided with a member 17 for shielding the film 14 from the light of the discharge, and an opening 16 adjacent which is provided an earthing member 15. The box 12 is made of black insulating material, e.g. P.V.C.
Patent GB-1424643-A (GB)
Title: Heat-developable light-sensitive photographic material
IPC: G03C1/498
Filed: 1974-01-14
Abstract: 1424643 Photographic, light-sensitive, heatdevelopable materials FUJI PHOTO FILM CO Ltd 14 Jan 1974 [17 Jan 1973] 01659/74 Heading G2C Photographic light-sensitive, heat-developable silver halide materials contain in one or more layers a) an organic silver salt e.g. silver behenate, b) a light-sensitive silver halide, or a compound which forms such silver halide by reaction with the organic silver salt, present in an amount to catalyze reduction of the organic silver salt by a reducing agent when the halide has been exposed to light, c) the reducing agent, d) an optional binder and e) at least one sensitizer of the Formula where p= 0 or 1, Ar<SP>1</SP> and Ar<SP>3</SP> are aryl, Ar<SP>3</SP> is arylene, and at least one of Ar<SP>1</SP>, Ar<SP>2</SP> and Ar<SP>3</SP> is substituted by -SO 3 M or -COOM, M being H, an alkali-metal or alkaline-earth metal or ammonium. Ar<SP>1</SP>, Ar<SP>2</SP> and Ar<SP>3</SP> may be further substituted and the material may have a top-coat polymer layer. The compounds (e) increase general sensitivity and some may optically sensitize.
Patent GB-491365-A (GB)
Title: Improvements in or relating to conveyor worms
IPC: B65G33/00
Filed: 1938-01-19
Abstract: 491,365. Screw conveyers. HANNOVERSCHE MASCHINENBAU-AKT.-GES. VORM. G. EGESTORFF (HANOMAG). Jan. 19, 1938, No. 1751. Convention date, March 3,1937. [Class 78 (i)] A screw-conveyer for feeding material from a hopper 3 to a discharge pipe 5 comprises a short cylindrical portion 2 and a longer conical portion 4. The edge 6 of the screw is chamfered to a knife edge.
Patent GB-620468-A (GB)
Title: Improvements in electrical control systems for electric lift motors
IPC: B66B1/06
Filed: 1947-01-20
Abstract: 620,468. Exciting dynamos. WHEELER, H. D., and MOSSAY, P. A. H. Jan. 20, 1947, No. 1792. [Class 35] [Also in Group XXXVII] A Ward-Leonard generator, supplying an electric motor M, which may be a lift-motor, is provided with a fixed shunt field winding GS, a variable reversible shunt winding GV, a reversible separately-excited master winding GX, and a series winding S. Initially, the field winding GV is excited at full strength, in opposition to the field winding GX, so as to provide together with the field windings GS and S, a resultant generator excitation affording a steady slow hoisting speed for the motor, the field winding MF of which is at full strength. Generator field forcing, providing motor acceleration, is afforded by connecting the field winding GV in series with resistors R1 and R2 to assist the windings GX and GS, the series winding S being shunted. The time constants of the generator field windings are so chosen as to. provide a substantially uniform rate of acceleration. When the generator reaches its normal maximum voltage, a switch, responsive to such voltage, effects closure of a contactor short-circuiting the generator field winding GV to provide a stable motor speed. Operation of a slow-down switch connects the generator field winding GV in series with resistors R1 and R2 to provide self-excitation tending to maintain the existing voltage, and the winding GX is reversed to oppose the windings GV and GS. When the generator voltage reaches a minimum value, a switch, responsive to such voltage, operates to afford the circuit connections appropriate to the low-speed motor operation described above. For lowering operation the functions of switches 3 and 4, which control the generator field winding GX, are interchanged. The switches responsive to maximum and minimum generator voltages may be adjusted in accordance with the load on the lift-motor.
Patent GB-559420-A (GB)
Title: Clamping tool
IPC: B25B31/00
Filed: 1942-02-03
Abstract: 559,420. Plate clamps. HELBUSH, H. H. Feb. 3, 1943, No. 1823. Convention date, Jan 9, 1942. [Class 44] A plate clamping device for use in riveting &c. comprises a body 5, Fig. 1, housing a plunger 10 with a reduced end fitting into a retracting spring 40 abutting the end 7 of the body- Retained in the plunger, by headed ends 21 fitting a counterbore 12, and by a spreader 25, are pins 20 that on compressing the spring may be flared to pass through the holes in the plates. On release of the spring clamping is effected between the shoulders 22a and a conical projection 30 on a cap 28 crimped into a grove 27 on the body. The projection 30 engages the countersink C in the work. A cupped member 32 mounted within the cap 28 has a tubular projection 33 that extends a considerable way through the holes in the work. The end of the projection determines the completely retracted position of the pins. A central arm 36 between the pins extends through the holes in the operation position and prevents the return of the ends 22 therethrough. The arm has a T-head 35 confined in the recess of the cap and the pins and arm are rotatable within the body. In a modification the part 30 is pressed on the cap 32 and in a further modification the cap 28, Fig. 6, is dispensed with the projection 30a is formed on the body and the end of the cap 32b now located within the body is closed by a washer 50 to act as abutment for the spring.
Patent GB-366700-A (GB)
Title: Improvements in manhole covers and grids applied in road construction
IPC: E02D29/14
Filed: 1931-10-10
Abstract: 366,700. Hinges. EYRES, Ltd., J. & S. and EYRES, J., Canal Foundry, Miles Platting, Manchester. Oct. 10, 1931, No. 1972. [Class 65 (ii).] A manhole cover or grid A is formed with openended grooves d at each side to receive and slide over inwardly-projecting hinge pins D provided on a frame B, and a hole e extending transversely through the cover or grid is adapted to receive a bar E adapted to assist in handling the cover or grid and prevent the same from falling through the frame when it has been raised from the hinge pins. The slots d may be provided in the cover itself as shown in Fig. 5, or in lugs a formed on the cover and adapted to enter corresponding recesses b in the frame B as shown in Fig. 4. In the latter case a hinge pin may project from each opposite wall or one wall only of each recess. Alternatively the cover may be provided with one centrally-arranged lug. Specification 288,109, [Class 107, Roads &c.], is referred to.
Patent GB-786838-A (GB)
Title: Purification of crude aqueous hydrogen peroxide
Inventor: SPRAUER JEROME WILLIAM
IPC: C01B15/013
Filed: 1956-01-20
Abstract: In a process for producing hydrogen peroxide by alternately hydrogenating a solution of an alkyl anthraquinone in a water-immiscible solvent and oxidizing the resulting solution of an alkylanthrahydroquinone to regenerate the solution of an alkylanthraquinone for recycling after separating the simultaneously formed hydrogen peroxide therefrom, wherein the hydrogen peroxide is separated in the form of a crude aqueous solution, the crude solution is subjected to liquid phase extraction with an inert hydrocarbon liquid having an atmospheric boiling point not exceeding 145 DEG  C. and residual amounts of the hydrocarbon liquid are stripped from the resulting extracted hydrogen peroxide solution.  Organic impurities and iron are removed from the solution.  The extraction may be at a pressure and temperature such that the extracting hydrocarbon is liquid, and may be effected batchwise, or continuously countercurrent in a packed tower.  Hydrocarbons, which should contain no aliphatic unsaturation, may be n-butane, n-pentane, isopentane, hexanes, heptanes, cyclopentane, cyclohexane, methyl-cyclohexane, benzene, toluene, or xylene.  Preferred is the petroleum cut boiling at 97-101 DEG  C. known as commercial heptane.  The stripping may be effected by aeration with an inert gas, e.g. air, nitrogen, or steam, at normal pressure and temperature not exceeding 100 DEG  C., preferably 30-50 DEG  C., or by fractional distillation at a pressure not exceeding 200 mm. Hg., preferably a pressure not exceeding that corresponding to a boiling temperature of 100 DEG  C. The stripping may be batch or continuous operations, preferably multistage, continuous, countercurrent operations.  The aqueous solution may contain 10-50 per cent H2O2 and stripping by fractional distillation will effect some concentration.  Stabilizers, e.g. sodium stannate or pyrophosphate, may be added.  Specifications 686,567 and 686,572 are referred to.
Patent GB-1254081-A (GB)
Title: Hydraulic control valve
IPC: B60T13/12
Filed: 1970-01-15
Abstract: 1,254,081. Power assisted steering mechanism. BENDIX CORP. 15 Jan., 1970 [15 Jan., 1969], No. 2080/70. Heading B7H. [Also in Division F2] An hydraulic control valve and booster providing boost to a master cylinder 14 is provided in a circuit supplying hydraulic fluid from a pump 16 to a power booster valve 10 for a steering mechanism and has a booster piston 42 having with lands 56, 58 which cooperate with lands 77, 78, 80 provided on a spool valve 46 rightward movement of which through a caged spring 96 and plunger 82 causes respectively closing of communication of a passage 60 with a passage 72 leading to an outlet 34 connected to exhaust, opening of communication between a passage 50 and passage 60, and restriction of communication between passage 50 and a radial passage 54, Fig. 3 (not shown), connected to an outlet 24 leading to the valve 10. Pressure is then communicated through a passage 90 and a bore 92 to act on the left hand face of valve 46 and also to act on piston 42 through passages 60 and 62 and chamber 64 to provide the brake boost through a connecting rod 102. Pressure also flows from chamber 61 through filter 100 and orifice 98 to a chamber 84 to act on the right end face of valve 46 to provide a balance thereof. As pressure in chamber 84 rises to the maximum boost for chamber 64 a ball valve 86 opens to permit relief of pressure on the right of valve 46. The pressure in chamber 94 causes valve 46 to move rightwardly against the force of spring 96 until valve 86 closes and pressure in chamber 84 halts further movement. Thus fluid flow to port 24 is maintained by preventing closure of lands 78, 56 while positioning lands 78, 58 to maintain maximum boost pressure for chamber 64.
Patent GB-1461871-A (GB)
Title: Ultrasonic welding processes and devices
IPC: B23K35/00
Filed: 1974-01-16
Abstract: 1461871 Welding by pressure SIEMENS AG 16 Jan 1974 [14 March 1973] 02139/74 Heading B3R In ultrasonically welding a metal component to a non-metal component an aluminium or noble metal layer is applied to the non-metal component and where a noble metal layer is applied an intermediate aluminium layer is interposed the noble metal layer and the metal component and the metallic portions are pre-heated to at least 250 C. Where the applied layer is of aluminium a further layer of aluminium may be applied to the metal component. A piezoceramic plate 3, in an embodiment, coated on its upper surface 4 and its lower surface with a noble metal is located in a recess 2 in a holder 1 and a steel rod 5 is located on the plate with an interposed layer 6 of aluminium. The layer 6 may be a foil or a coating applied to the metal rod 5. A high frequency induction coil 7 is seated on a ceramic member 8 and surrounds the components while a sonotrode 11 forming part of an ultrasonic welder and having a surface 12 complementary to that of the rod 5 is arranged above the rod 5. The ultrasonic welder is movable by a motor 19 upwardly and downwardly in a guide 17 is energized by a generator 16 and a photoelectric temperature measuring device 20 is directed towards the rod 5. In operation the parts are heated by the currents induced by the coil 7 and when the temperature detected by the device 20 reaches e.g. 350 C. the coil is deenergized, the sonotrode is energized by the generator 16 and the motor 19 lowers the sonotrode to engage the rod 5, the sonotrode being subject to the force of an adjustable spring. After a predetermined time during which welding is effected and determined by a timer 28 the sonotrode is deenergized and is raised from the work. The non-metal member may be a quartz or glass plate.
Patent GB-563882-A (GB)
Title: A beaming or warping machine
IPC: D02H3/00
Filed: 1942-07-24
Abstract: 563,882. Beaming-machines. LAMBACH, F. July 24, 1942, No. 2173/44. Convention date, Nov. 21, 1941.. Divided out of 563,858. Drawings to Specification. [Class 142 (iv)] A beaming-machine is provided with a beam support swingably mounted on a stationary part of the machine and lifted by adjusting means from a lower and beam-receiving position, wherein the beam is disengaged from the drive, into an upper and operative position wherein the beam is coupled with the drive. Locking means are provided for holding the support in the upper position. The adjusting means may include a self-locking worm. The invention is described in Specification 563,858. Specification 563,883 also is referred to.
Patent GB-723415-A (GB)
Title: Xanthones and process for the production thereof
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D311/86
Filed: 1951-01-29
Abstract: The invention comprises 1-aminoxanthones substituted in the 5-, 6-, or 7-position by amino or halogen, obtainable by heating with a cyclodehydrating agent a diphenyl ether 2-monocarboxylic acid, having in the 4-, 5- or 6-position an acrylamido- or nitro-group or halogen and a 31-nitro-group, and reducing nitro groups present with known reagents and/or hydrolysing acylamido groups in the product.  In examples, 1 : 7 dinitroxanthone, obtained by cyclizing 4 : 31-dinitrodiphenyl ether-2-carboxylic acid, is reduced to the 1 : 7-diaminoxanthone; the corresponding 1 : 5- and 1 : 6-dinitro- and diamino-compounds are obtained similarly; 1-nitro - 6 - chloroxanthone and the corresponding 1-amino-compound are obtained similarly from the 5-chloro-31-nitro diphenyl, ether-2-carboxylic acid.  Other dinitro-, nitro-chloro- and acetamido - nitro - diphenyl ether - 2 - carboxylic acids which may be cyclized are specified; and these may be obtained by condensing the corresponding substituted 2-chloro benzoic acids with m-nitrophenol.
Patent GB-633812-A (GB)
Title: Improvements in and relating to light-sensitive photographic emulsions
IPC: G03C7/388
Filed: 1948-01-24
Abstract: 633,812. Photographic emulsions containing colour couplers. KODAK, Ltd. (Eastman Kodak Co., Sawdey, G. W., and Vittum, P. W.). Jan. 24, 1948, No. 2229. [Class 98 (ii)] In the method of incorporating a colour coupler in a light-sensitive emulsion of silver salt in a water-soluble binder such as gelatin as described in Specification 541,589, the oilformer used is an alkyl amide of one of the general formulµ wherein R is an alkyl group of from 1 to 19 carbon atoms, R 1 -R 4  are the same or different alkyl groups of from 2 to 10 carbon .atoms, and n is an integer of from 1 to 12. Smaller quantities of these oil formers and thinner emulsion layers may be used. Oil formers specified are N: N-diethyl-, N: N-dibutyl-, N-ethyl-, N-butyl- and N: N-didecyl-lauramide; N: N-diethyl-, N: N-dibutyl- and N: N-dinonyl-stearamide ; N: N-diethyl- and N: N- dibutyl-capramide; N: N-dibutylarachidamide ; N: N - dipropylacetamide; N: N<SP>1</SP> - tetraethylsebacamide; N : N<SP>1</SP> - tetrabutylsuccinamide; N: N<SP>1</SP>-tetrahexyladipamide; and N: N<SP>1</SP>-tetradecylmalonamide, the alkyl substituents being straight-chain alkyl groups. Branched-chain alkyl substituents having up to ten carbon atoms may be used. Two or more oil formers may be employed. In an example, 2-(21: 41-ditert. - amylphenoxyacetamino) - 4: 6 - dichloro - 5 - methylphenol is dissolved in N: N-di-n-butyllauramide by heating at 120‹ C., and the warm solution is poured into aqueous gelatin containing sodium tri-isopropylnaphthalenesulphonate. The mixture is emulsified in a colloid mill and mixed with the silver halide emulsion. A solvent such as an alcohol or organic acid ester may be used in conjunction with the oil former to hasten solution of the coupler. The gelatin may be replaced by polyvinyl alcohol or a partially hydrolysed polyvinyl or cellulose ester, which may be used as the emulsion binder. Other couplers specified are #-(p-tert.-butylphenoxy) - ethyl p - (# - benzoylacetamino) - benzenesulphonate, 2 - chloro - 5 - (N - p -isopropylbenzyl : N - p - sec. - amylbenzoylamino) - 1 - naphthol, 1-phenyl-3-pentadecyl-5-pyrazolone, 1-p-tert.-butylphenoxyphenyl-3-m-(p-tert.-amylphenoxy) - benzoylamino - 5 - pyrazolone and 1- phenyl- 3 -palmitylamino - 4 -p -methoxybenzeneazo - 5 - pyrazolone. Specifications 516,536, 528,433, 531,246, 531,312, 536,939, 598,174 and 598,657 also are referred to.
Patent GB-802575-A (GB)
Title: Improvements in or relating to moulding fibrous cementitious materials
Inventor: BRUNTON BERNARD
IPC: B28B1/52
Filed: 1955-01-26
Abstract: 802,575. Moulding wood-wool-cement slabs &c. SECO, Ltd. Jan. 26, 1955, No. 2290/55. Class 87(2). Wood wool, after being loosened and weighed into suitable batches on a platform 1, is dipped into water 8 long enough to wet it but not for it to absorb water, placed on a draining platform 4 for the removal of surplus water, and then agitated in a mixer 2 while dry powdered cement is added to the wetted wood wool to coat its surface with cement slurry, after which the mixture is moulded into an article such as a slab or panel. The dipping may be done manually, e.g., with forks, or mechanically, e.g., by baskets moved by a conveyer. The water may hold in solution a cement setting accelerator such as calcium chloride, to counteract the retarding influence of sap or resin in the wood, or, where high temperature conditions might cause the cement to set prematurely, an inhibitor such as sugar. The mixing is done by rotating a shaft 10 on which are secured tines 10a. The slurry is discharged by opening a hinged flap 11, operated through linkage by a handle 14, and it may enter the moulds directly or be received in receptacles in which it is taken to the moulds. Setting and curing in the moulds preferably take place under pressure. Specification 555,484 [Group X], is referred to.
Patent GB-231271-A (GB)
Title: Improvements in or relating to letter boxes
IPC: A47G29/124
Filed: 1924-01-29
Abstract: 231,271. Hainsworth, H. Jan. 29, 1924. Letter-boxes. - A letter-box of the kind adapted to be fixed to the interior of a door, gate or wall or other part of a house or building, in which there is a slit covered by a swinging door and an internal shoot inclined towards the rear of the box and having flaps or serrations on its inner edge is provided with a projection 23, Figs. 1 and 3, around the exit opening to protect the hinged door and with hinged flaps 38, 34 controlled by stops 35, 39. Lugs 59 are provided as a safeguard in case the hinges are tampered with. The door is further protected by a system of levers 48, 49, Fig. 1, operated by the bolt 47 of a lock 46 to further secure the door. In the modification shown in Fig. 5 the part 53 of the lever is weighted in order that the link 48 may be dispensed with; and in a further modification the link is replaced by an arrangement of bell-crank levers.
Patent GB-357048-A (GB)
Title: Sheet metal toy ship hull
IPC: A63H23/02
Filed: 1931-01-23
Abstract: 357,048. Toy boats. EINFALT, J. and KOTSCHENREUTHER, G., (trading as EINFALT & KOTSCHENREUTHER), 13, Hessestrasse, Nuremberg, Germany. Jan. 23, 1931, No. 2326. Convention date, July 25, 1930. [Class 132 (iii).] The hull of a toy ship is made from a single sheet of metal which, before bending, has a shape similar to that shown in Fig. 1, and comprising a bottom a, sides b and a four-sided extension c which eventually forms the stem. The sides b are bent upwards and, at the same time, the extension part c is folded inwards by means of a die. The plate is then placed in a die and pressed to its finished shape the extension c being bent inwards to form a pointed and watertight stem as shown in Fig. 4. A deck is then fitted and holds the plate in its bent shape.
Patent GB-538615-A (GB)
Title: Improvements in or relating to electroplating metals
IPC: C25D5/30
Filed: 1940-02-07
Abstract: 538,615. Electrodeposition of metals. DOW CHEMICAL CO. Feb. 7, 1940, No. 2362. Convention date, March 1, 1939. [Class 41] Magnesium or an alloy thereof is electroplated by cleaning off dirt, scale &c. if necessary, etching as by immersion in a pickling bath which may include an agent tending to produce a protective coating on parts of the surface, a slight pitting being thereby produced, removing any protective coating if necessary, e.g. with concentrated chromic acid, and electroplating, e.g. with nickel using a soluble salt of the metal to be deposited, together with a simple fluoride or complex fluo compounds, such plating being followed if desired with cadmium, chromium, copper, zinc, silver or other metal deposition. Examples of etching solutions specified include hydrofluoric acid alone or with hydrochloric, nitric, chromic, orthophosphoric, acetic, tartaric or sulphuric acid or a soluble salt of these acids, sodium dichromate alone or with monosodium acid phosphate or with nitric acid, or nitric acid and chromic acid. Etching with sodium dichromate and monosodium acid phosphate is effected while electrolysing the article as anode with a current density of 5-50 amps. per sq. ft. Examples of nickel plating baths include nickel sulphate with boric acid and potassium or ammonium fluoride, hydrofluoric acid being added to reduce pH to 5-5.5, nickel carbonate, hydrofluosilicic acid &c. and nickel sulphate with cobalt sulphate &c. Specification 287,450, [Class 82 (ii)], is referred to.