baber/WOPTO huggingface dataset:
Patent GB-304339-A (GB)
Title: Improvements in pressure-reducing valves
IPC: G05D16/18
Filed: 1927-09-20
Abstract: 304,339. Bakeborough, R. A., and Tart, H. Sept. 20, 1927. Valves controlled by pilot or relay valves.-A pressure-regulating valve is actuated by a piston subject to conduit pressure through ports controlled by the movement of the piston and exhausted through a valve actuated by a paddle in the main conduit. A second auxiliary valve actuated by outlet pressure may be fitted. In the form shown in the Figs., the main valve b co-operates with a seat formed on a partition a<3> and is actuated by a leaky piston b<1> of larger area than the valve working in a cylinder c' depending from a cover a<4>. The valve is loaded to open by weights d<1> suspended from a lever d pivoted to a rocking link e and'coupled to the valve spindle b<2>. Inlet pressure is admitted to the actuating chamber c' through graduated ports c<2>, b<3> in the cylinder and piston respectively, and is exhausted to the outlet side of the main valve through pipes j and k<2> and auxiliary valves k, m. The valve k comprises a piston h having a leak passage h' equal to or slightly in excess of the clearance around the piston b<1> and adapted to control tapered ports k<1>. This valve is actuated by a paddle f pivoted at g in a pocket a<5> on the casing. The valve m has a lift valve member m<1> closed against a dead weight load by outlet pressure acting on the piston m<2>. In a modification, the main valve is in the form of a plunger slidably mounted in a cylinder axially disposed in the main conduit and is loaded by weights acting through a rack and pinion.
Patent GB-490105-A (GB)
Title: Improvements in or relating to lawn mowers and like machines
IPC: A01D34/42
Filed: 1937-09-11
Abstract: 490,105. Lawn-mowers. WAYMOUTH, H. Sept. 11, 1937, No. 24791. [Class 6 (ii)] The ledger blade 10 of a lawn-mower is carried by a frame 11 which is pivoted in front of the axis 6 of the rotary cutter Springs 12 press the frame in a rearwarc direction to keep the ledger blade in con tact with the cutter The ledger blade is fixed to the frame at its rear edge, the front edge being free to adjust itself to irregularities in the cutting blades. The frame may be pivoted on the driving wheel bolts 3 and the angle subtended by the points 3 and 6 at the point of contact 15 between the ledger and rotary blades is approximately 35‹. To prevent excessive movement of the frame 11, a stop 14 may be provided.
Patent GB-263941-A (GB)
Title: Improvements relating to skylights, ventilators and similar hinged portions of buildings
IPC: E05D7/00
Filed: 1925-10-06
Abstract: 263,941. Bear, A., and Stevens, J. Oct. 6, 1925. Pinless and like hinges.-A watertight hinged joint for skylights, ventilators &c. consists of a strip of sheet material A secured to the frame and bent back, the bent edge being curved in the reverse direction to a cylindrical shape C and rotatably engaged on the inside by the rolled-over edge of a strip B secured to the skylight &c. The parts are assembled by relative sliding axially and separation is prevented by a rod H and nuts &c. on the ends thereof.
Patent GB-1307171-A (GB)
Title: V-triazole compounds posessing a methyl group in the 4-position
IPC: C07F9/6558
Filed: 1971-04-19
Abstract: 1307171 Triazoles CIBA-GEIGY AG 19 April 1971 [23 March 1970] 24952/71 Headings C2C and C2P [Also in Divisions C3 and D1] Novel triazoles of general formula wherein Z denotes hydroxyl, benzoxy optionally substituted by C 1-4  alkyl or alkoxy or by halogen, C 1-4  alkoxy or alkylthio, dialkylamino with C 1-4  alkyl substituents, a morpholino or piperidino radical optionally substituted by methyl, or a dialkylphosphono radical with 1-4 carbon atoms per alkyl part, R 1  denotes C 1-4  alkyl, or phenyl optionally substituted by C 1-4  alkyl or alkoxy or by halogen, and R 3  denotes a 3- phenylcoumarinyl-(7) group, of which the phenyl group may contain non-chromophoric substituents, are prepared by methods known per se, or when Z is benzoxy, the products are prepared by reacting a compound of general formula with a compound of formula R 2 CO-O-COR 2  at 100‹ C. or more. The products have optical brightening properties.
Patent GB-1014060-A (GB)
Title: Aminoketones and methods for their production
Inventor: STEVENS CALVIN LEE
Filed: 1963-06-24
Abstract: The invention comprises compounds of the formula <FORM:1014060/C2/1> wherein X represents a hydrogen or halogen atom or a methyl, methoxy or hydroxy radical and Y represents a methyl or ethyl radical, and pharmaceutically acceptable acid addition salts thereof, and a process for preparing compounds of the general formula <FORM:1014060/C2/2> wherein R is a substituted or unsubstituted phenyl group and R1 is an alkyl radical of 1 to 5 carbon atoms by heating, in a solvent at a temperature between about 180 DEG  C. and 250 DEG  C., a compound of the formula <FORM:1014060/C2/3> or by heating, in a sealed vessel, at between 180 DEG  C. and 250 DEG  C., for between 10 and 20 hours, a compound of the formula <FORM:1014060/C2/4> or a mixture of a compound of the formula <FORM:1014060/C2/5> with at least one equivalent of a compound of the formula R1NH2.  Compounds of the formula IV may be prepared from the correspondingly substituted cyclopentylcyclohexyl ketone by bromination to give the 1-bromocyclopentyl derivative which is treated with sodium methoxide to give the 2-phenyl-1-oxespiro (2,4) heptone which on treatment with an amine of the formula R1NH2 gives the desired amino ketone.  Compounds of the formula III are prepared by treating the 1-bromocyclopentyl derivative described above with an amine of the formula R1NH2.  Unsubstituted and substituted cyclopentylphenyl ketones may be prepared by the action of the appropriately substituted benzonitrile on the Grignard reagent obtained from cyclopentyl bromide, and hydrolysing the product.  2 - Phenyl - 2 - methylaminocyclohexanol may be prepared by the action of sodium borohydride on 2-phenyl-2-methylaminocyclohexanone.
Patent GB-734694-A (GB)
Title: Process for the improvement of the hardening characteristics of phenol formaldehyde rsins
IPC: C08L61/10
Filed: 1952-10-06
Abstract: The hardening characteristics of phenolformaldehyde resins are improved by addition thereto of one or more salts with a di- or higher valent metal of a substance exhibiting ketoenol tautomerism. Suitable metals are aluminium, cobalt, copper and nickel.  Suitable tautomers are acetoacetic ester, b -diketones, e.g. acetylacetone and malonic acid ester.  The addition reduces the hardening temperature, the duration of the hardening process and/or the amount of hardening agent, e.g. hexamethylenetetramine required.  The salts may be melted into the resins or added to solutions thereof in benzene hydrocarbons or in spirit.  The salt may itself be dissolved in xylene.  In examples: (1) the aluminium salt of acetoacetic ester Al(C6H9O3)3 is added to a solution of resol in spirit; (2) Al(C6H9O3)3 is added to a molten novolak; (3) Al(C6H9O3)3 is added to a molten hardenable phenol formaldehyde resin.  The product is particularly suitable as a binder e.g. for grinding discs; (4) and (5) a xylene solution of Al(C6H9O3)3 is added to a solution of a plasticized phenol formaldehyde resin to yield a film-forming solution.  In example (6) The cobalt salt of acetoacetic ester is employed and in example (7) the copper salt of acetylacetone.  Specifications 718,283 and 734,683 are referred to.
Patent GB-207299-A (GB)
Title: Improvements in connection with coal-cutting and like machines
IPC: E21C29/22
Filed: 1922-09-15
Abstract: 207,299. Hurd, F. W. Sept. 15, 1922. Independent driving on opposite sides.-A coal cutting or like machine is carried by two tractor bands H driven through sprockets E, E' from a worm S and either of two worm wheels R, R<1>; pinions M, M<1>, M<2>, M<3> are adapted to be clutched to the worm wheels, the pinions engaging gears G, G' fixed to sprocket shafts and giving a reversible and independent drive for each hand. The worm S may be driven by the cutter driving motor or an independent motor.
Patent GB-961396-A (GB)
Title: Heat treatment of chromium steels
Inventor: BROXTON ERNEST SAMUEL
IPC: C21D6/00
Filed: 1959-07-22
Abstract: Steels for tools containing between 1.4 and 2.4% C and between 10 and 14% Cr are heat treated by heating to effect complete austenitization, quenching under conditions preventing the formation of pearlite to a temperature between 295 and 305 DEG C. and holding at this temperature e.g. for at least one hour to allow an isothermal transformation involving the formation of between 7 and 13% bainite by volume, subsequently continuing the quench to room temperature to transform most of the residual austenite to martensite and then transforming the remainder by sub-zero quenching to at least as low as -80  DEG C.  The austenitization may take place in three stages: (a) raising temperature of steel to 500-550  DEG C. and equalising; (b) further increasing temperature to 780  DEG C. and after equalising holding for at least two hours; and (c) increasing temperature to 980  DEG C. and soaking for at least two hours.  After sub-zero quenching, the steel may be heated to between 490 and 510 DEG C. and allowed to cool in air to room temperature prior to tempering e.g. at 500  DEG C.  A steel alloy specified consists of 1.5% C, 0.3% Mn, 0.4% Si, 0.02% each of S and P, 12% Cr, 1% Mo, 0.25% V, balance Fe and impurities.
Patent GB-718497-A (GB)
Title: Improvements relating to label tabs for file folders and similar articles
Inventor: ADDISON JAMES EDWARD
IPC: B42F21/08
Filed: 1950-10-16
Abstract: 718,497. Tabs; filing papers. SHANNON, Ltd. Oct. 16, 1951 [Oct. 16, 1950], No. 25177/50. Classes 16 and 146(1) A file folder, index card, guide, or the like 2 having along one end a bar 4 carrying a tab for a label is characterized in that the bar 4 is of inverted U- shape in section to receive and grip an edge of the file folder or other article and at least one of its edges 10, 12 is cranked away from the face or faces of the article, and the tab presents the same crosssection throughout its length and has a transparent front part 16 and a rear limb 14 between which the label 28 is gripped and two legs 26, 27 extending over the opposite faces of the bar, the free edge 20, 22 of one or both legs being turned inwardly to hook round an edge of the bar. As shown in Fig. 2, both legs 26, 27 are provided by bending the rear limb 14, the label 28 being inserted by bending the tab into the dotted line position. The tab may be made from sheet plastic material or extruded. In the embodiment shown in Fig. 3 the transparent front part 31 of the tab is made integral with the rear limb 30, the. bar gripping legs being formed by the rear face of the limb 50 and an extension 33 thereon. The front part 31 is spaced away from the limb 30 when the tab is formed and is retained in correct position after a label has been inserted by engagement with a hook 34. on the limb 30. In a. further embodiment, Fig. 6 (not shown), the front part may be made integral with the rear limb at the top of the tab the bottom of it being adapted to hook under a cranked edge of the bar.
Patent GB-514020-A (GB)
Title: Improvements in and relating to electromotors and the propulsion of vehicles
IPC: H02K23/60
Filed: 1938-08-26
Abstract: 514,020. Motor driving arrangements; electrically propelled vehicles. PERRIOLAT, E. J. Aug. 26, 1938, No. 25185. Convention date, Aug. 26, 1937. [Class 35] [Also in Group XXXI] In a motor with both members rotatable each member rotates with a wheel of a differential gear train and the satellite carrying disc of the train is brake controlled. In the form shown in Fig. 1, the shaft of the inner rotor 10 carries a sun pinion 1 engaging three planets 2, carried by a disc 4 on a shaft 40 carrying a brake 41, 56, the planets also engaging internal teeth 3' of a member 3 rotating with the outer rotor. The brake adjusts the relative speeds of the rotors and may be spring controlled or adjusted by an electromagnet energized in proportion to the motor current. The outer rotor may carry a vehicle wheel 70 as indicated in Fig. 6.
Patent GB-270157-A (GB)
Title: Improvements in or relating to air and gas filtering apparatus
IPC: F02M35/16
Filed: 1926-10-11
Abstract: 270,157. Visco Engineering Co., Ltd., and Smith, F. C. Od. 11, 1926. Filtering.-In a rotary air or gas filter, such for instance as is described in Specification 269,790, [Class 55 (ii), Gas manufacture &c.], the filtering element is rotated by connection with a movable part of the machine in which it is used. The spirndle b of the filter of an air filier for the carburetter of a motor vehicle is connected by a ratchet and pawl with a part such as the change-speed lever g. Separate means (not shown) are provided for direct manual operation of the spindle.
Patent GB-675078-A (GB)
Title: Improvements in or relating to horticultural frames
IPC: A01G13/04
Filed: 1950-10-17
Abstract: 675,078. Horticultural frames. WARREN, J. C. Oct. 17, 1950, No. 25302/50. Class 20(i) A unit for a horticultural frame comprises a wire bent to form two parallel top portions 1, 2 and downwardly extending portions 3-6 at each end of the top portions, the lower end of the portions, 3-6 at one or both ends of the top portions. 1, 2 being upwardly and outwardly bent at 3a, 4a to retain glass side sheets A. The ends 3a, 4a are preferably joined at 8, and the upper edges of the sheets A are retained in position by a clip 11, shoulders 14, 15 of which rest on the portions 1, 2. Specifications 583,392, 609,113, 611,502 and 675,077 are referred to.
Patent GB-487992-A (GB)
Title: Improvements in or relating to travelling grates for fire-tube boilers
IPC: F23H11/00
Filed: 1937-09-17
Abstract: 487,992. Firegrates. GIESAU, R., and MICHALK, 0. Sept. 17, 1937, No. 25314. [Class 51 (i)] A furnace grate comprises a central travelling portion, composed of separate grate members c which are pushed forward on an upper track bl and returned on a lower track b<11> intermittently, and lateral stationary portions n, the breadth of the travelling portion being at least half the breadtl. of the fire tube a. The grate members c pass from the track b<1> on to a lever e and are moved forward on the track b<11> by means of pivoted tappets g on rods f actuated by links h and levers h<1> pivoted to crank discs h<11>. The members c are raised from the lower to the upper track by a pivoted plate i actuated by a cam k which engages with an arm i<11> on the plate to raise and lower it from an inclined to a horizontal position and vice versa. When the plate i carrying a grate member c arrives at the level of the upper track, the grate members are pushed forward by a pusher l<11> on an arm l actuated by the cam h<11>. The frames b carrying the tracks b<1>, b<11> are hollow for the supply of air which is delivered beneath the grate through nozzles u. The stationary side grates may be formed of bars n which may be toothed at one or both ends as shown in Figs. 4, 5, 6. Handles o are provided on the bars for giving them a longitudinal movement.
Patent GB-150723-A (GB)
Title: Improved arrangement for the spring suspension of the front part of the frame of motor vehicles in general
IPC: B60G11/04
Filed: 1920-09-02
Abstract: 150,723. Cattaneo, G. Sept. 2, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Springs, arrangement of.-In the spring suspension of the front portion of the frames of motor-vehicles, the suspension springs 8 on the front axle 3 are placed externally and at the side of the bearers 1 of the frames instead of below them. As shown, a leaf spring 8 is directly connected at the front to the pivot 1<1> of the spring carrier arm, at the rear by a shackle 8<1> to a pivot 9 on the bearer, and by the usual stirrups 10 to the axle 3. The objects of the invention are the increasing of the spring movement or, alternatively, the lowering of the frames, the increasing of the gauge between the springs with resultant increased stability and diminution of the bending stress in the axle at the points of attachment of the springs, and the diminishing, if desired, of the width of the front portion of the frame.
Patent GB-609316-A (GB)
Title: Improvements in and relating to razor blade magazines
IPC: B65D83/10
Filed: 1945-09-29
Abstract: 609,316. Safety razors. HEIDE, H. C. (Gillette Safety Razor Co.). Sept. 29, 1945, No. 25344. Drawings to Specification. [Class 30] [Also in Group XVII] The subject-matter is the same as in Specification 609,318 but the claims differ.
Patent GB-274682-A (GB)
Title: Improvements relating to stacking elevators for hay, corn, straw and like materials
IPC: A01D87/02
Filed: 1926-10-12
Abstract: 274,682. Carter, J., and Carter, S. Oct. 12, 1926. Guards and shields to prevent falling-off and spilling.-Hay, &c. is kept on a. folding stacking elevator by two separate sets of slats p each of which is pivoted to a section of the trough in such a manner that the elevator may be folded. The slats of the lower section b are secured to a spindle q which is pivoted to arms r pivoted to the sides of the trough. The slats are retained in the position shown in Fig. 1 by hooks s. When the hooks are released, the arms are swung towards the lower end of the section and the slats are lowered. In this position a cross-slat p<1> secured to the upper faces of the slats rests on the sides of the trough. The pivoted arms t which support the spindle q attached to the slats of the upper section c are supported by rule-jointed struts w. When these slats are lowered, the cross-slat p' is engaged by a hook v and the slats are prevented from falling away from the section when the trough is folded. Chains w are attached to the slats and trough for the same purpose.
Patent GB-600108-A (GB)
Title: Improvements in or relating to folding tables and the like
Filed: 1945-10-01
Abstract: 600,108. Folding tables. WEATHERSHIELDS, Ltd., BISHOP, W. H., and SMITH, H. A. G. Oct. 1, 1945, No. 25396. [Class 52 (iii)] In a folding table or like article of furniture, preferably of sheet metal, each leg 6 hinges on a transverse pin 7 in a corner bracket 4 of inverted U-shape, the side of the leg which is lowermost when it is folded being cut away at the upper end to form a locking notch 9 to be engaged by a spring- loaded lever catch 10 which is mounted in vertical guide slots in the sides of the bracket 4. As the leg is moved from the folded to the erected position, a cam surface 8 on the leg moves the lever catch 10 downwardly until it is free to move into the notch 9, thereby securing the leg 6. The catch 10 is released by upward finger pressure on an extended tail piece which projects outside the bracket 4.
Patent GB-245229-A (GB)
Title: Improvements in or relating to bodies for vehicles
IPC: B60J9/02
Filed: 1924-10-25
Abstract: 245,229. Bristol Aeroplane Co., Ltd., Garrett, W. L., and Hall, J. Oct. 25, 1924. Doors for passenger vehicles; seats, arrangement an disposition of.-The door for an emergency exit of a vehicle is constructed in two parts of which the upper part 15 is hinged about a vertical axis and carries a hinged seat 18 adapted in the horizontal or operative position to engage a fixed part of the vehicle structure, e.g. the adjacent seats 13, 14 as shown in Fig. 1, so as normally to prevent opening of the door, but to permit opening of the door when the seat is swung to a vertical position, while the lower part 16 is hinged about an horizontal axis and carries a step 21 which is moved into position for use as shown in Fig. 2 when the lower part of the door is opened. A spring 20 or other means is arranged to move the seat 18 to the vertical or unlocking position as soon as the seat is vacated and so allow the door to be opened either from the inside or outside, by releasing a fastening 17. The lower edge 22 of the upper part 15, when in the closed position, is arranged to bear upon the upper edge of the lower part 16, thus retaining the latter also in the closed position. When the upper part 15 is opened a lever 26 actuated by a spring 25 automatically pushes the lower part 16 to its open position. In place of the seats 13, 14 fixed abutments of any other form against which the seat 18 can engage laterally may be provided.
Patent GB-930104-A (GB)
Title: Pressure vessels
IPC: F15B1/16
Filed: 1959-07-24
Abstract: 930,104. Hydraulic accumulators. J. MERCIER. July 24, 1959 [July 30, 1958], No. 25509/59. Addition to 827,859. Class 69 (2). An hydraulic accumulator comprises a flexible separator 13, Fig. 1, in a chamber, and a guide member 25 disposed in the chamber whereby the separator is prevented from rubbing against the casing 10 of the accumulator and, when compressed, forming sharp folds. The separator consists of a flexible bladder secured at one end of the casing, which may be spherical or cylindro-spherical and of steel, cast aluminium or the like, by a flanged disc 14 and a nut 21. An extension 24 of the disc provides a core for one end of a tightly-wound spring 25, the other end of which receives a plug 31 having a resilientlycovered curved end 33. Air is supplied through a bore 26 and passages 27, or flutes or flats formed on the sides of the extension, and the spaces between the coils of the spring to the interior of the bladder. The bladder expands and displaces fluid, such as oil, from the space between the casing and bladder through a port 12 until it closes a poppet valve 35. When the bladder is compressed it is prevented from rubbing against the casing or forming sharp folds by engaging the plug 31 and spring 25. In an alternative embodiment, the separator is in the form of a sleeve 43, Fig. 2, having both ends secured to the casing by conical members 49, 66 between which is a hollow rod 76 having a bore 80, passages 81 and a tightly-wound spring 85 on its outer surface. To charge the accumulator, liquid such as oil, is supplied to the interior of the sleeve through the bore 80 and passages 81, and air inside the sleeve and in a space 65 between the casing and sleeve vented through ports 46, 61, respectively. When all the air is expelled, the ports 46, 61 are closed and a gas under pressure is supplied to the space 65 through a port 62.