baber/WOPTO huggingface dataset:
Patent GB-221366-A (GB)
Title: Improvements in apparatus for purifying and disinfecting the atmosphere of rooms andother interiors
IPC: A61L9/14
Filed: 1923-10-03
Abstract: 221,366. Koppel, K. Oct. 3, 1923. Vaporizing by air currents and the like; vaporizing by heat; vapours, delivering.-Relates to apparatus for dispersing volatile disinfectants or the like. According to the invention, an annular V- shaped trough 1, which contains a volatile disinfectant or the like, has a central tubular aperture 3 communicating with a steam or compressed air or gas generator or container below. The trough is closed on its upper side by a chamber 4, mounted thereon, which is pierced with holes 5 through which the gas or steam issues to impinge on the. blades of the fan 11. A small portion of the gaseous fluid issuing from the lower reservoir or generator passes through holes 2, 13, in the annular trough and, becoming charged with the volatile substance, again mingles with the main stream issuing by way of the central aperture 3. A spring-loaded valve 9 in the top of the chamber 4 allows any excess pressure to be relieved.
Patent GB-999299-A (GB)
Title: Viscous damper
IPC: F16F9/52
Filed: 1962-06-27
Abstract: 999,299. Hydraulic shock-absorbers. LORD MANUFACTURING CO. June 27, 1962 [Aug. 4, 1961], No. 24638/62. Heading F2S. A temperature-compensated viscous damper comprises a stud 3 with a plunger 4 which fits, with cleavance, in a central hole 11 in a ring 10 surrounded by an outer ring 15 having an outer cylindrical surface 16 presented to the inner cylindrical surface 17 of an outer casing 1 the ends of the latter being closed by flexible diaphragms 8, the inner edges of which are bonded to discs 5 secured by nuts 6 to the opposite ends of the plunger 4 and the outer edges to rings 9 fastened to the casing 1. The inner surface 18 of the ring 15 is spherical and complementary to an outer surface 19 of the ring 10 which has a number of passages 12 which prevent fluid pressure build-up on the upper and lower sides 13, 14 of the ring 10 when the latter is displaced. The. casing, plunger, and washer construction 1, 3-6 is made of a metal having a low coefficient of thermal expansion, e.g. steel, and the ring is of a metal, e.g. aluminium, having a relatively high coefficient, the ring 15 being made of a material, e.g. brass, having a coefficient intermediate that of steel and aluminium. In use, one of two relatively movable members is connected to the stud 3 and the other to a flange 2 in the housing 1 the clearances between the relatively-movable surfaces of the damper becoming larger and smaller at low and high temperatures respectively when the damping fluid in the casing is more and less viscous. Motions in the vertical and horizontal directions are resisted by shearing of the fluid respectively in the space 16a between the cylindrical surfaces 16, 17 and the space between the discs 5 and the sides 13, 14 of the ring 10, angular motions being damped by relative movement between the surfaces 18, 19 of the rings 15, 10. Preferably at least one of each of the relatively movable surfaces is coated with a film 20 of plastics material. Further compensation may be obtained by the change in volume of the damping fluid by partially filling the casing so that the area of contact with the liquid depends upon the temperature. A reservoir 21 is connected to the lower end of the casing 1. It is stated that damping fluids of high viscosity and even greases, can be used.
Patent GB-279614-A (GB)
Title: Apparatus for use in drying stockings and the like
IPC: D06F59/06
Filed: 1926-10-05
Abstract: 279,614. Birtwistle, A. M. M. Oct. 5, 1926. Drawings to Specification. Drying-frames. - A frame for use in drying stockings &c. is made of plywood &c. and of sufficient width to maintain the stocking slightly distended. The frame may be made in two parts shaped to the front and back of the foot and leg respectively and adapted to be adjusted in parallelism. Reference has been direct by the Comptroller to Specifications 6281/88, 9965/88, 22629/93, and 246,070.
Patent GB-470308-A (GB)
Title: Improvements in and relating to high frequency electric measuring appliances
IPC: G01R19/22
Filed: 1936-09-10
Abstract: 470,308. Current and pressure meters. SHEVLIN, J. T. (Siemens & Halske Akt.-Ges.) Sept. 10, 1936, No. 24738. [Class 37] High-frequency current or potential measuring apparatus arranged to give a full scale deflection for at least two normal currents of predetermined frequency comprises a bar transformer 1 with iron core feeding a measuring instrument 4 through a static contact rectifier 7, and current and potential limiting resistances 5, 6, 12. A condenser 8 byepasses any alternating- current component from the rectifier which is provided with a shunt capacitance 9 if its inherent capacitance is insufficient. A resistance 11 with short-circuiting switch 10 is employed to increase further the sensitivity of the apparatus.
Patent GB-1535188-A (GB)
Title: Coffins
IPC: A61G17/00
Filed: 1976-09-03
Abstract: 1535188 Coffins REED INTERNATIONAL Ltd 3 Sept 1976 [10 June 1975] 24868/75 Heading A5X A coffin formed of substantially rigid but foldable lightweight board such as double or triple thickness corrugated cardboard, fibreboard or hardboard is made from a base blank 3 having a base panel 12 forming the base of the coffin and a pair of end wall panels 13 hingedly secured to the base panel 12 along score lines 14, and a pair of side wall blanks 4, 5 each having a side wall panel 6 forming a side wall of the coffin and flaps 9, 10, 11 hingedly joined to each side panel 6, for securing the side blanks 4, 5 to the base blank 3. A base filler blank 2 is provided for extending across the base of the coffin between the crease lines 7 in the shoulder region. An inner base blank may form the floor of the completed coffin.
Patent GB-155411-A (GB)
Title: Improvements in excavators
IPC: E02F3/20
Filed: 1919-10-11
Abstract: 155,411. Jones, T., and Grossmith, A. R. Oct. 11, 1919. Digging - apparatus.- An excavator comprises a digging-wheel B rotating on an horizontal axis and provided with narrow radial spuds B', conveyer belts C<2> on each side of the wheel, sharelike parts B<2> guiding the material from the spuds to the conveyer belts, and means for moving the digging-wheel transversely to its axis on the supporting - framing A. The axle of the wheel moves in guides A<5> and is connected by radiusbars D<6> to a shaft D<2> mounted in guides D<3>. The shaft D<2> carries pinions D<4> engaging fixed racks D<5> and is rotated by hand or through gearing from the motor E to advance the digging-wheel to its work. A sleeve on the shaft D<2> is driven from the motor E through shrouded bevel-gears E<3>, E<4> and chain gearing E<1> and carries pulleys D which drive the digging wheel through the conveyer belts C<2>, the pulleys D, wheel B, and belts C<2> preferably being slotted to give a positive drive. The conveyer belts discharge the material by a shoot J to trucks J<1>. The frame A is moved axially of the wheel B by chain gearing and a clutch driven from the motor E.
Patent GB-374712-A (GB)
Title: Vehicle spring constructions
IPC: B60G11/12
Filed: 1931-09-05
Abstract: 374,712. Laminated springs. SPRONG, W. J., 719, Irving Street, Alhambra, and UNITED STATES SPRING & BUMPER CO., 1120, South Los Angeles Street, Los Angeles, both in California, U.S.A. Sept. 5, 1931, No. 24935. [Class 108 (iii).] The usual pin and eye connection between the main leaf of a laminated spring and the frame of a vehicle is replaced by a member 36 bolted to the spring and pivoted to the frame, the member being connected to the main leaf 12 by bolts 34 and formed with lugs 44 which extend downwards on each side, a retaining strap 46 being bolted to the lugs. A rebound spring 16 extends into a recess under the member 36, the necessary end clearance 50 being provided. Endwise movement is also prevented by a lug 37 on the main leaf entering a recess in the member 36. The end 14b of the leaf 14a is bent over to prevent separation of the leaves in the event of breakage of the main leaf.
Patent GB-678344-A (GB)
Title: Improvements in silencers
Inventor: STREETE CHARLES MATHIAS
IPC: F01N1/02
Filed: 1950-10-12
Abstract: 678,344. Inlet and exhaust, silencers. VOKES, Ltd. Oct. 12. 1950, No. 24975/50. Addition to 602,859. Class 7(ii) In the silencer for gas streams flowing to and from an appar a t u s generating sound waves described in the parent Specification, wherein an inner tube for the passage of the gases is provided with apertures 6, spaced to register with the peaks of the sound waves or their harmonics, giving access to resonant sound chambers 4 around the tube, a cylindrical member 7. e.g. a perforated metal tube having end caps 8, 9, is arranged on the axis of the inner tube and leaves an unobstructed passage for gas flow past the apertures. The member may be filled with sound-absorbing material, e.g. glass wool or subdivided into chambers, the lengths of which are chosen to resonate to selected frequency bands. The perforations may be square and have jagged edges directed towards the centre of the member. A perforated tube 5 may reinforce the inner tube.
Patent GB-1094915-A (GB)
Title: Improvements in or relating to degreasing animal bones and other animal by-products
Inventor: ASHWORTH DAVID RICHMOND
IPC: C11B1/00
Filed: 1965-06-14
Abstract: Broken-up animal by-products (e.g. bones) are heated with or without additional water to a temperature not higher than 100 DEG  C. and the heated material is passed through a continuous centrifuge from which the treated material can be removed continuously.  The bone may then be more finely broken up and the process repeated.
Patent GB-1508829-A (GB)
Title: Practice golf ball
IPC: A63B43/00
Filed: 1975-06-11
Abstract: 1508829 Balls P J ILINE 8 June 1976 [11 June 1975] 25022/75 Heading A6D A practice golf ball comprises a homogenous solid body of an expanded copolymer of ethylene and vinyl acetate and is lighter than a standard golf ball. The ball may weigh 16 or 17 grams and may be injection moulded with the addition of a blowing agent.
Patent GB-409981-A (GB)
Title: Improvements in floor polishers
IPC: A47L13/314
Filed: 1933-09-11
Abstract: 409,981. Reservoir brushes. GLEN, T., 29, Hendy Avenue, Coogee, New South Wales, Australia. Sept. 11, 1933, No. 25087. [Class 19.] A floor polisher of the reservoir type in which wad is fed from a container 14 by pressure on a false bottom 19 is characterized in that a bridle 5 pivoted to a polishing plate 1 at 4 has a cranked portion 20 bearing on the false bottom so that pressure from a pivoted handle 8 feeds the wad. The container is rotatable to register with perforations 17. A felt pad 2 is retained by tangs 3 in the plate 1. Reversal of the handle operates a mop 12 which is hemmed to a wire frame 10.
Patent GB-425820-A (GB)
Title: Process for the manufacture of printing paper
IPC: D21H21/28
Filed: 1934-08-31
Abstract: 425,820. Compound paper for printing. WINKLER, C., 7, Bubenbergplatz, Berne, Switzerland. Aug. 31, 1934, No. 25171. Convention date, Aug. 31, 1933. Addition to 424,839. [Class 96] Paper for printing upon in rotary presses &c. comprises an inner, relatively thick, impervious, sized or parchmentized layer filled or coated with cork dust, the particles of which may be mixed with the pulp or the binder or dusted &c. on, or mixed with paste for uniting the inner layer with its two covering layers which may be filled with kaolin, baryta &c., or the layers may be couched together on a multicylinder or Fourdrinier paper-making machine.
Patent GB-1322414-A (GB)
Title: Process for the preparation of 6alpha-alkyl-19-nor-steroids
IPC: C07J7/00
Filed: 1971-04-19
Abstract: 1322414 Preparation of 6α-alkyl-19-norsteroids ORGANON LABORATORIES Ltd 19 April 1971 [24 March 1970] 25199/71 Heading C2U #<SP>4</SP> - 3 - Keto - 6α - alkyl - 19 - nor - steroids are prepared in substantially quantitative yields by alkaline hydrolysis of #<SP>3,5</SP>-3-acyloxy-6-alkyl- 19-nor-steroids, prepared in turn, for example, by enol acylation of #<SP>4</SP>-3-keto-6#-alkyl-19-norsteroids which may contain some of the 6α- epimer, or by enol acylation with accompanying dehydration of 3-keto-5a-hydroxy-6#-alkyl-19- nor-steroids. Examples are given, and a comparative example describes the dehydration of 5α - hydroxy - 6# - methyl - estrane - 3,17 - dione to give a mixture of 6α- and 6#-methyl-#<SP>4</SP>- estrene-3,17-dione, conversion of this mixture to 3 - ethoxy - 6 - methyl - #<SP>3,5</SP> - estradien - 17- one and acid hydrolysis of this enol ether to yield the epimeric mixture of #<SP>4</SP>-3-ones again.
Patent GB-252055-A (GB)
Abstract: 252,055. Coleman, T. E. Feb. 11, 1925. Pumps with reciprocating and oscillating pistons; multiple-delivery piston pumps; regulating delivery by bye-passes.- Lubricant supplied by a pump is distributed to a number of feed pipes by a cylindrical valve rotating in a housing, the valve or housing being formed with an annular groove in direct communication with the supply, and a number of inclined passages being formed in the valve, one end of each passage opening into the groove and the other end registering periodically with one or more of the feed pipes. As shown, the valve 31 is formed with two annular grooves 37, 38 fed through pipes 29, 29<a> by separate pumps, a pair of inclined passages 39, 40 extending from each groove, and each passage being arranged to feed four pipes. The discharge ends of each pair of passages are spaced apart both longitudinally and circumferentially, as shown in Fig. 5. The valve housing 21 depends from the cover 3 of a casing 1 which also houses the pumps, and the valve is rotated in steps by a crank 35 engaging a star wheel 34, the crank being secured to a sleeve 19 journaled in a bearing 20 depending from the housing. The sleeve 19 is interconnected by other sleeves 15, 17 to a sleeve 6 mounted in a bracket 4 and carrying a worm wheel 7 driven by a worm 8. A shaft 9 supported in the sleeves is provided with a crank 13 for manual operation. The sleeves 15, 17 carry wobbling eccentrics 16, 18 driving the pistons 24 of the pumps through yokes 25, the cylinders 22 depending from the cover 3. The capacity of each cylinder may be varied by a sleeve 23 adjusted by an internally-threaded sleeve 23<a> engaging a threaded stem 23<b>. The oscillation of the piston controls inlet and outlet ports 23<c>, 23d in the sleeve 23, the piston having longitudinal grooves 24a registering alternately with the ports. Adjustment of the sleeve varies the cut off and thus regulates the delivery. A spill port in the piston is adapted, when the groove 24a cuts off in the upward stroke of the piston, to register with escape ports in the sleeve, so that oil may escape from the cylinder when the piston has discharged a regulated quantity of oil. The parts are so arranged that the piston begins its forcing stroke just before the passage in the valve registers with an outlet pipe.
Patent GB-617228-A (GB)
Title: Improved clutch for controlling electrically the mechanical transmission of power
IPC: F16D37/00
Filed: 1946-08-23
Abstract: 617,228. Actuation of switches. WINSLOW, W. M. Aug. 23, 1946, No. 25268. [Class 38 (v)] Two relatively movable bodies such as a cup 19 and disc 20 which are separated by a special insulating liquid 22 are adapted to be clutched together when they are connected in an electric circuit. For example, when a beam of light strikes a photo-electric cell 31, a potential difference is established between the members 20, 22 which, for reasons not definitely known, causes'the liquid to become momentarily more viscous so as to couple the members together. The cup 19 has been driven slowly about its axis 18 by an electric motor and the disc 20 now rotates with it to move a contact arm 23 out of engagement with a contact 25 and into engagement with a contact 24. The liquid used may be a light-weight transformer oil, olive oil, &c. in which is suspended finely divided material such as starch, limestone, gypsum, flour, &c. In a more developed form of the invention, the driving cup contains a number of annular discs between which lie discs mounted on the driven shaft.
Patent GB-1188427-A (GB)
Title: Internal Combustion Engines
Inventor: GARTNER HANS
IPC: F02B3/06
Filed: 1968-05-27
Abstract: 1,188,427. Combustion chambers. WISSENSCHAFTLICH-TECHNISCHES ZENTRUM AUTOMOBILBAU HOHENSTEIN-ERNSTTHAL, VEB. May 27, 1968, No. 25292/68. Addition to 1,187,787. Heading F1B. The waisted combustion chamber of the Specification 1, 187, 787 is modified by arranging the waist nearer to one end or the other of the chamber.
Patent GB-1285971-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: DAWSON JOHN HOWARD
IPC: G11C27/02
Filed: 1969-05-19
Abstract: 1285971 Active filters MARCONI CO Ltd 24 Nov 1969 [19 May 1969] 25315/69 Heading H3U A commutated-type filter is followed by a lowpass filter to limit the upper operating frequency the lowpass filter having a cut-off frequency less than (1/T)-f sig  where 1/T is the repetition frequency of the switching signal, and f sig  is the highest input frequency.
Patent GB-1456235-A (GB)
Title: Digital telecommunications switching systems
IPC: H04Q11/06
Filed: 1973-05-29
Abstract: 1456235 Automatic exchange systems GENERAL ELECTRIC CO Ltd 29 May 1974 [29 May 1973] 25336/73 Heading H4K In a multistage TDM switching network, a path between a selected inlet and outlet is reserved for subsequent use by operating the relevant " crosspoints " in all but one of the stages of the network. In a telex system for example, the outlet may use a different signalling mode (loop disconnect or VF) or a different speed to that of the inlet so that it is convenient to temporarily attach a mode or speed converter to the outlet whereby it can store and then repeat data items, the path being cut during the repetition periods. Preferably the network is of time-space-time configuration, the switch control memory for the output stage being filled with address words which contain a busy bit and a reserve bit. In normal use the busy bit causes the relevant information word incoming via the space switch from an inlet to be written into an information data memory. Under reserve conditions, the reserve bit prevents the information word location from being written and at the same time prevents a central control from misconstruing the " free " condition of the busy bit.
Patent GB-638480-A (GB)
Title: Improvements relating to the preparation of substituted pteridines
IPC: C07D475/04
Filed: 1946-04-24
Abstract: Substituted pteridines of the general formula <FORM:0638480/IV (b)/1> wherein R represents OR1 or NR2R3, R1\h being a hydrogen atom or an alkyl group and R2 and R3 being hydrogen atoms or aromatic or aliphatic groups, are prepared by mixing: (i) 2 : 4 : 5-triamino-6-hydroxypyrimidine or a tautomer thereof; (ii) an alpha, alpha, beta-trihalogeno-propionaldehyde or an acetal thereof; (iii) para-aminobenzoic acid or a salt, aliphatic ester or an amide thereof.  Reactants (i) and (ii) may be mixed and the reaction product thereof mixed with (iii), or reactants (ii) and (iii) may be mixed and the reaction product thereof mixed with (i).  The reaction may be carried out in an inert medium, e.g. water, ethyl alcohol, acetone, benzene, carbon tetrachloride and chloroform or mixtures thereof, or in water at a pH between 3 and 5.  Reactant (ii) may be alpha, alpha, beta-tribromo-trichloro- or triiodo-propionaldehyde. Reactant (iii) may be the methyl, ethyl, butyl or benzyl ester of p-aminobenzoic acid, aliphatic and aromatic amides of para-aminobenzoic acid derived from ethylamine, ethanolamine, dodecylamine, ethylhexylamine, benzylamine, morpholine or aniline, amino acids such as glutamic acid, glutamylglutamic acid, glutamylglutamylglutamic acid, and others having a plurality of peptide linkages such as para-aminobenzoyl-glutamylglycylglutamic acid.  The amides may also be derived from glycine, aspartic acid, leucine, alanine, isovaline or cysteine, and the amino acids may be in any of the d, l or dl forms.  Salts and esters of these compounds may be used.  Acid salts of the substituted pteridines may be obtained by the addition of mineral acids such as hydrochloric or sulphuric acids, and salts with cations may also be obtained by treatment with alkali such as alkali metal hydroxide, ammonia or an amine, and by double decomposition methods to introduce cations such as zinc, silver, nickel, copper, magnesium or barium.  In examples, N-[4-{-[(2 - amino - 4 - hydroxy - 6 - pyrimido - [4,5-b]-pyrazyl) methyl] amino} benzoyl] glutamic acid is prepared.  The samples furnished under Sect. 2 (5) comprise pteroic acid.  Alpha, alpha, beta-tribromopropionaldehyde is prepared by the action of bromine on alpha-bromoacrolein.
Patent GB-208248-A (GB)
Title: Improvements in or relating to closure for vessels
IPC: B65D45/06
Filed: 1922-09-20
Abstract: 208,248. Kay, A. P. R. Sept. 20, 1922. Retaining - devices b e low closure; stoppers secured by swinging bails; plug stoppers formed to a i d withdrawal; means for preventing loss of stopper; sealing - devices for stoppers.-A closure for a vessel comprises a closure member or cap a locked to the neck of the vessel d by a fastening of the press-button type and held captive by a lever b pivoted to a lug c or other part of the vessel and adapted to facilitate opening and closing. To secure the cap a to the lever, the limbs g, g<1> of the lever engage slots in the cap but with sufficient freedom to allow them to be sprung into locking engagement with a groove e on the neck of the vessel and to allow the cap automatically to correct any error due to position or to its arcuate path of approach. The closure is so proportional that a packing- disc h is compressed to form an airtight joint at 'the moment when the cap is locked on the vessel neck. As shown, the lever is of the second order and extends in front of the cap so that the closure may be removed by an upward pressure of the thumb of the hand which grasps the vessel, the connection of the lever to the vessel preventing the stopper from being lost. Inadvertent opening is prevented by a sliding clip j which prevents the limbs g, g<1> from spreading. The free end of the lever may be sealed to a catch k to facilitate the detection of illicit opening of the closure. The invention is also applicable to plug closures.
Patent GB-1508155-A (GB)
Title: Selective wheel-brake operating device for motor vehicles
IPC: B60T11/06
Filed: 1975-06-16
Abstract: 1508155 Brake actuating mechanisms F SBARRO 16 June 1975 [17 June 1974] 25569/75 Heading F2E A motor vehicle hand brake lever 1 having cables 2, 3 connecting with respective braking mechanisms 6, 7 of rear wheels 8, 9 has mounted thereon a two armed pivoted selector lever 16, each brake cable 2, 3 being attachable to a respective end portion 18a, 19a of the arms 18, 19, of the lever 16 and the lever 16 being pivotable to tighten one cable (e.g. 3) and slacken the other (e.g. 2). If the lever 1 is now pivoted only one braking mechanism (e.g. 7) is operated to lock one wheel (e.g. 9), and this facility can be utilized if the one wheel is spinning for lack of traction to assist in making the vehicle mobile again. The device may be screwed on to the handbrake lever or may form part of the original equipment. The lever 16 is mounted on a pivot pin 14 which enters a notch 20 when the rocker 16 is in its neutral position but enters one or other of notches 21, 22 in end portions 18a, 19a as the rocker 16 is moved in either direction to tighten cable 3 or 2. The pin 14 as shown is provided in a frame 10 screwed to lever 1, but it could be directly connected to lever 1.