baber/WOPTO huggingface dataset:
Patent GB-152810-A (GB)
Title: Improvements in lifting jacks
IPC: B66F3/04
Filed: 1919-08-06
Abstract: 152,810. Percival, S., (Duff Manufacturing Co.). Aug. 6, 1919. Jacks.-In jacks of the kind having a double rack bar engaged at opposite sides by pinions, the shafts 14 on which the pinions are mounted carry buttress gears 18 which are engaged by a double conical spiral pinion 23. The shaft 21 carrying the pinion 23 also carries a rocker 40 formed with a socket for the handle 43. A ratchet-wheel 41 with symmetrical teeth is fixed between the cheeks of the rocker and is engaged by a double reversible pawl 44, Fig. 6, which is shifted from one operative position to the other by an off-set projection 47 on the end of the handle. The pawl is held in either position by the engagement of a spring 51 with one of the notches 49. The rack bar 4 is secured to a head 25 from which depends a lifting bar 31 provided with notches 32. The load-engaging member 33 has lugs 34 embracing the channelled sides of the bar, and can be moved so that its extremity 35 engages any one of the notches. Engagement is maintained by a counterweight 36.
Patent GB-419550-A (GB)
Title: Improvements in and relating to valve gear for internal combustion engines
IPC: F01L9/10
Filed: 1933-07-10
Abstract: 419,550. Valve gear. WESTON, S. B., The Summerhouse, Burntwood, near Lichfield, Staffordshire. July 10, 1933, No. 19443. [Class 7 (vi).] Hydraulic valve gear comprises cams 19, 20 acting through rockers 25, 25A upon pistons 29 working in cylinders 23, 23A having connections 40 to smaller pistons acting on the valves, the pistons 29 sliding within sleeves 26 which are formed with the fluid inlet ports 37 and, as wear of the rockers occurs at 32, 33, are moved progressively outwards by contact of the pistons 29 with the sleeves on their return strokes, effected by springs 31. The relation of the pistons 29 to the inlet ports 37 in the sleeves is thus kept constant under all conditions of wear and temperature. The port 37 is supplied with oil from passages 34, 35, 38 and overflow may take place at 41 to the engine sump. The lobes of the cams 19, 20 commence with a tangential slope at E and end with an inverse curve at F. An air vessel may be fitted to the oil supply to the valve gear. In a modification, two concentric face-cams actuate two sets of pistons for working the inlet and exhaust valves respectively of a multicylinder engine. The invention may be applied to piston or sleeve valves, as well as to poppet valves, and a second set of pistons may be provided to effect a positive closing of the valves, in place of the usual springs.
Patent GB-740847-A (GB)
Title: Improvements in or relating to pattern cards for display purposes
IPC: G09F5/04
Filed: 1953-07-14
Abstract: 740,847. Display cards. STAPLES, G. A. V. July 12, 1954 [July 14, 1953], No. 19486/53. Class 3(2) A pattern card comprises a top board 1 and a base board 2 which are formed from a single sheet folded in half or two separate sheets hinged together. The base board 2 is provided with indentations, perforations or slots, &c., to enable articles 4 to be mounted thereon as by sewing, clipping or sticking; in the latter case the indentations, &c., serve to locate the article. The board 1 is provided with cut-outs 3, 5, 8, 10 to enable the articles 4 and labels 6, 9, 11 to be viewed. The members 1, 2 are stuck together after the articles 4, &c., have been positioned. The pattern cards may be provided with punch holes and built up into a loose leaf book. Moreover, the pattern cards may be provided with a non-sullying glazed surface and may have a backing member adhesively secured thereto in order to cover up the stitches or clips.
Patent GB-840836-A (GB)
Title: Plastic compositions
IPC: C08K5/1515
Filed: 1958-06-19
Abstract: Heat and light stable plastic compositions comprise a vinyl chloride polymer and 0.1 to 10% by weight thereof of an alkali metal or alkaline earth metal salt of epoxysuccinic acid.  Metals specified are sodium, potassium, lithium, calcium and barium.  The polymer may be a homopolymer of a vinyl chloride or a copolymer, preferably containing at least 50% thereof, with vinyl esters, e.g. acetate, acrylic compounds or vinylidene chloride.  The composition may include plasticizers e.g. dioctyl phthalate, tricresyl phosphate or dioctyl adipate.  Examples illustrate the effect of adding sodium, barium and calcium epoxysuccinates to compositions containing: (1) 60 parts of a 95/5 vinyl chloride/acetate copolymer, 30 parts of dioctyl phthalate, and 0.5 part stearic acid; and (ii) 60 parts of polyvinyl chloride and 30 parts of dioctyl phthalate.  U.S.A. Specification 2,674,561 is referred to.ALSO:Alkali and alkaline earth metal salts of epoxysuccinic acid are prepared by reacting equivalent amounts of the appropriate metal carbonate with epoxysuccinic acid which may be obtained by the fermentation method described in U.S.A. Specification 2,674,561. They are used as plasticizers for polyvinyl chloride (see Group IV (a)).  Metals specified are sodium, potassium, lithium, barium and calcium.
Patent GB-751862-A (GB)
Title: Improvements in or relating to time delay devices particularly for electromagnetic contactors
IPC: H01H50/88
Filed: 1953-07-15
Abstract: 751,862. Electromagnetic switches; retarding action of switches. DEWHURST & PARTNER, Ltd., and MINNS, G. E. July 15, 1954 [July 15, 1953], No. 19657/53. Class 38(5) Counter-clockwise movement of a shaft 3 by, e.g., a solenoid causes similar movement of a member 5 pivotally mounted at 8 on a bracket 4 and biased by a spring 7 so that a stop 5a on the member 5 normally engages the bracket. This movement of the member 5 is arrested by a finger 10 engaging an externallythreaded cylinder 11 whereby the stop 5a is separated from the bracket. The cylinder 11 is axially-slidable but non- rotatably mounted on a shaft 12 rotated by a synchronous motor and is thus caused to rise by the finger 10 until the finger moves beneath the cylinder permitting a projection 6 to separate contact blade A from contact B. On de-energization of the solenoid the shaft 3 returns and the finger 10 releases the cylinder which drops down on to an adjustable stop (Fig. 1. not shown), the height of the stop determining the time delay between energization of the solenoid and operation of the contacts. In a modification (Fig. 3, not shown) a stationary abutment for the stop 5a replaces'the abutment formed by the bracket 4 and the time delay occurs upon de-energization of the solenoid. In a motor starting arrangement in which a number of resistance sections are successively cut out, the shaft 12 may carry a number of cylinders 11, the arrangement being such that each succeeding contactor is energized upon closure of the preceding one. The motor driving the shaft 12 may be energized upon energization of the solenoid and be de-energized by auxiliary contacts operated by the member 5 when the solenoid is de-energized.
Patent GB-187045-A (GB)
Title: Improved means for recording telephone calls
IPC: H04M15/30
Filed: 1921-07-25
Abstract: 187,045. Davis, L. B. July 25, 1921. Counters actuated by reciprocating mechanism.-A telephone receiver 10 when in position on its bracket engages a clip 11 attached to a sliding bar 12, so that removal and replacement of the receiver actuates a counter by the reciprocation of the bar 12, by means of inclined projections thereon, one 13 forming a locking detent and the other 14 a driving pawl for a numeral disc 1 with lateral teeth 7. According to the first Provisional Specification the reciprocating bar may alternatively move a pivoted pawl into engagement with ratchet teeth on the numeral disc at each removal of the receiver.
Patent GB-859586-A (GB)
Title: Improvements in oscillatory springs or like mechanical resonators
Inventor: STRAUMANN REINHARD
IPC: H03H3/013
Filed: 1957-06-24
Abstract: 859,586. Non-metallic springs. INSTITUT Dr ING. R. STRAUMANN A.G. June 24, 1957, No. 19889/57. Addition to 801,314. Class 108(3). The invention of the parent Specification is modified in that the spring is made of a non-metallic ferromagnetic material. The latter may be in the form of rings or plates of a spinel such as Fe 3 O 4 .
Patent GB-337435-A (GB)
Title: Method of and apparatus for removing plastic material from mills
IPC: B29B7/64
Filed: 1929-06-28
Abstract: 337,435. Goodyear Tire & Rubber Co., (Assignees of MacMonagle, W. E.). Nov. 30, 1928, [Convention date]. Rolling-machines; stream-cutting machines.- The entire batch of plastic stock, particularly rubber stock, is removed from a mixing mill as a continuous strip and simultaneously the strip is marked with a batch number, cut into slabs of predetermined length, impregnated with antifriction material and cooled. When mixing of a batch is completed a knife 23, Fig. 5, on an arm 17 pivoted on a bracket on the frame 11 of the mill' is brought into position to sever an end strip 29 from the material on one of the rolls 13 of the mill. The strip is carried upwards between conveyer bands 33, 36 and passes between a roll 46 and a rotary knife 43, which cuts the strip into slabs. The slabs are projected by roller conveyer mechanism 48 into a wire basket 52 in a tank 49 containing water or other cooling medium in which soapstone or other antifriction material is suspended. The basket, which can be lifted out of the tank by a hoist 53 carried on a beam track 54, is open ended to facilitate discharge of the slabs. The convevers and the knife 43 are driven bv means of a chain 31 from the roll 12 of the mill. A disc 26, with relief figures on its periphery is mounted on a pivoted arm 16 adjacent to the knife 23 in such a position that it repeatedly impresses a number on the strip as it is removed. The bank A of stock between the rolls at the end from which the strip is removed is replenished bv an attendant who cuts slabs from the other end of the rolls. The rotary knife 43 may be replaced by cutting mechanism comprising a tension wire, projecting through a slot between guides and operated by pneumatic cylinders controlled by a timing device. In the arrangement shown in Fig. 4, the strip as it leaves the conveyers 33, 36, has its direction turned through a right angle by means of a series of rollers 61, and it is then discharged upon a conveyer 66 serving several mills which are arranged side-by-side. The strip is then directed through a tank containing the cooling fluid and anti-friction material and is afterwards divided into slabs by means of a rotary cutter.
Patent GB-670454-A (GB)
Title: Improvements in gelatine blasting explosives
IPC: C06B25/30
Filed: 1949-07-29
Abstract: 670,454. Gelatine blasting explosives. TAYLOR, J., GREGG, J. V., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 28, 1950. [July 29, 1949] No. 19974/49. Class 9 (ii). A gelatine blasting explosive, which will detonate satisfactorily under the hydrostatic pressures encountered in well blasting or in seismic prospecting, of the kind comprising a porous vegetable material ingredient and an inorganic oxidising salt distributed through a continuous matrix of liquid explosive nitric ester-nitrocellulose jelly, is characterized in that the porous vegetable material is a dried substantially de-proteinised de-oiled peanut meal obtained by aqueous alkaline extraction, and subsequent washing and dewatering of the extraction residue, from a peanut product from which the oil has been removed. The peanuts should have the brown testa removed, and the oil is obtained by expression, volatile solvent extraction, or both. The peanut meal, which is incorporated in the same way as other vegetable material should pass a 16 B.S.S. mesh and be retained on 100 B.S.S. mesh. The oxiding salt may be an alkali metal or ammonium nitrate. Other ingredients quoted are 80/20 nitroglycerine/ethylene glycol dinitrate, "blasting soluble" nitrocellulose, sodium nitrate, chalk, and di-ammonium hydrogen phosphate.
Patent GB-220960-A (GB)
Title: Improvements in and relating to turbine installations
IPC: F01K3/26
Filed: 1924-08-23
Abstract: 220,960. British Thomson-Houston Co., Ltd., (Assignees of Doran, J. H.). Aug. 24, 1923, [Convention date]. Superheating by steam and hot liquids.-In a turbine installation in which the elastic fluid is reheated at an intermediate point, a separate boiler supplies heating medium to the reheater. The reheater 6 is connected to the exhaust of a high-pressure turbine 2 and to the admission end of a low-pressure turbine 3. Heating fluid, preferably at a temperature substantially higher than that of the boiler supplying the turbine, is supplied to the reheater 6 from a separate boiler 11. Water, mercury, sulphur, or molten metal may be used as the heating medium. An air venting device 14 is fitted on the reheater 6.
Patent GB-699879-A (GB)
Title: Antihistaminic substances
IPC: C07D213/38
Filed: 1948-10-15
Abstract: A process for the manufacture of compounds of the general formula Py-CHR1-Y-R, where Py represents a pyridine residue which may carry as substituents halogen, alkyl or alkoxyl, Y stands for an alkylene group having 2 or 3 carbon atoms, R stands for a dialkylamino-, piperidino-, morpholino-, and R1 for an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic, any of which may be chlorinated or brominated and of which the three last-named may have as substituents alkyl, alkoxyl, or dialkylamino-groups, and for the manufacture of salts of such compounds, comprises condensing a pyridylmethane of the formula Py-CH2-R1 with a compound X-Y-R (wherein X stands for halogen), in the presence of an alkali metal hydride or alkoxide, or an organometallic compound of an alkaline earth metal, e.g. a Grignard reagent such as ethyl magnesium bromide, followed, if desired, by conversion of the resulting basic products into their salts.  The condensing agents specified are said to be applicable to the process of the parent Specification. The compounds of the first general formula may also be prepared by condensing a compound of the formula R1X with a compound Py-CH2-Y-R, in the presence of the above condensing agents.  As a further alternative, products of that formula where R1 is alkyl, cycloalkyl, or aralkyl, are produced by condensing the compound Py-CH2-Y-R with the halide R1X in the presence of an alkali metal amide, hydride or alkoxide, or an organometallic compound of an alkali or alkaline earth metal, e.g. sodamide, lithium diethylamide, butyl-lithium, triphenyl-methyl sodium or a Grignard reagent such as ethyl magnesium bromide.  The invention also comprises the preparation of the specific compounds <FORM:0699879/IV (b)/1> where Py stands for 2-pyridyl and R for N-piperidino, or N-morpholino by the first process described above but using as the condensing agent potassium amide, or butyl lithium. Examples are given showing the preparation of (1) 3-phenyl-3-(21-pyridyl)-N-piperidinopropane; (2) 3-phenyl-3-(21-pyridyl)-N-morpholinopropane; (3) 3-(31-aminophenyl)-3 - (211 - pyridyl) - N : N - dimethylpropylamine; (4) 3-cyclohexyl-3-(21-pyridyl)-N : N-dimethylpropylamine.
Patent GB-148150-A (GB)
Title: Improvements in electrical switches
IPC: H01H19/08
Filed: 1920-07-09
Abstract: 148,150. Aufranc, P. July 13, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Snap-action switches, in which the quick action is produced by the reaction between a rectangular rotary contact member which is hand-operated and spring-urged pivoted contacts, comprise an operating-spindle c upon which is loosely mounted within the casing j a square insulating-member c. upon the upper face of which a U-shaped metal stamping is arranged so that the depending limbs a<1> cover a part of two opposite sides of the insulating-member. The insulating-member is held in place by a pin i passing transversely through the spindle and projecting therefrom.- The contacts which have vertical faces b<1> to cooperate with the sides of the insulating-member are pivoted on the terminals h<1> for the leads, and are spring-urged towards the insulating- member by coiled springs also mounted on the terminals and having their extremities g<2>, g<1> bearing against the inner wall of the casing and against the inner vertical face of the contacts respectively. When the handle is rotated, lost motion is taken up until the ends of the pin wedge against the depending parts of the contact member, whereupon the contact member is driven positively until its corners pass the dead-centre position in relation to the spring-urged contacts and a rapid movement independent of the handle ensues.
Patent GB-834645-A (GB)
Title: Apparatus for the treatment of liquids through a membrane
IPC: B01D63/00
Filed: 1958-06-23
Abstract: <PICT:0834645/III/1> <PICT:0834645/III/2> <PICT:0834645/III/3> <PICT:0834645/III/4> Apparatus for the treatment of liquids com prises an enclosed space having a micro-porous wall 63 forming a membrane, means 47 for injecting gas under pressure into the said enclosed space, an orifice 39 for the introduction of an aqueous treatment liquid into the said enclosed space, means 20 for feeding liquid to be treated to the outer surface of the said micro-porous wall, and a device 22 for discharging the said aqueous liquid and gas from the said enclosed space, this discharge device regulating the pressure in said enclosed space.  The unit is made of plastic material, which is preferably transparent and chemically inert. Membranes formed by supports of various materials such as sheets of polyamides, polyethylene, polystyrene, ethyl cellulose may also be employed.
Patent GB-727654-A (GB)
Title: Improvements in or relating to compartments for railway carriages
IPC: B61D31/00
Filed: 1951-08-27
Abstract: 727,654. Railway coaches. COMPAGNIE INTERNATIONALE DES WAGONS-LITS ET DES GRANDS EXPRESS EUROPEENS. Aug. 27, 1951 [Nov. 6, 1950], No. 20196/51. Class 103 (4). In a unit of four individual compartments for a railway coach having a lateral longitudinal corridor 1, each compartment is bounded on one side by the internal partition 23 of the corridor and on the other side by the opposite wall 2 of the coach and laterally by transverse partitions 22, each of said compartments comprising a window 7 or 13, a bed or berth 10 or 16, a washhand basin (not shown) and a luggage boot 11 or 17, said compartments being arranged symmetrically in pairs in relation to a central transverse partition 20, 25 and arranged at different levels, the floor of the lower compartments being on a level with that of the corridor and the floor 18 of the raised compartments being at a higher level, a central staircase 4 leading from the corridor 1 to the raised compartments and entrance doors 21, 24 leading respectively from the top of the central staircase to the raised compartments and directly from the corridor to the lower compartments, a false ceiling 6 bounding the height of the lower compartments and partitions 26 connecting the false ceiling to the floor 18 of the upper compartments. The invention is characterized in that said false ceiling 6 is L-shaped, one wing, the width of which corresponds to that of a berth, completely occupying a space against said lateral transverse partition 22 and the other wing of substantially the same width completely occupying a space against said internal partition 23 between said partition 22 and the transverse partition 25, the beds or berths of the raised compartments, which beds are not intended to be used as day seats, being placed with their backs against the lateral transverse partitions 22, the luggage boot 11 also being arranged against the internal partition 23 between the beds and the partition 25, the beds or berths of the lower compartments being placed also with their backs against the partition 22 and being capable of being raised, and the luggage boot 17 for the said compartments being underneath the floor 18 of the raised compartments and above that of the lower compartments.
Patent GB-464552-A (GB)
Title: Improvements relating to jacquard mechanism for flat knitting machines
IPC: D04B15/70
Filed: 1936-07-22
Abstract: 464,552. Knitting - machines. ERB & SOHNE. July 22, 1936, No. 20308. Convention date, July 22, 1935. [Class 74 (ii)] Jacquard mechanism for flat machines comprises a pattern barrel c, pattern band c<2>, needles g and associated elements mounted on a carriage b that is movable across the width of the machine to produce repeats of the pattern. The carriage b is slidably mounted on a rod a and is movable on a winging frame s which is moved towards setting members v after each needle selection, a hole on the pattern band allowing a pivoted striker h associated with the needle to move to striking position. As the frame s returns to full line position, a relatively stationary stop o engages an arm l<1> and rotates a shaft l so as to move a cam l<2> into engagement with the strikers to withdraw the needles from the cylinder, the final movement of the arm l<1> operating a bowl n and a cylinder driving pawl m. The stop o is carried by one of two adjustable stops which limit the axial movement of the carriage b on the shaft a.
Patent GB-265467-A (GB)
Title: Improvements in and relating to gramophones and the like
IPC: G11B33/06
Filed: 1926-08-18
Abstract: 265,467. Hoy, H. W. S. Aug. 18, 1926. Cases. - A cabinet gramophone constructed with an upper compartment 14 housing a horn connected with a tonearm in a middle compartment 10 above a lower compartment 8 housing the motor 9, has an elongated base mounted on castors, an elongated top, and an amplifier with apertures communicating with the enclosing compartment. As shown, the compartments are octagonal sided and hinged along two sides to allow access. The horn is constructed with four incurved sides and is supported from a bar 22 and sealed around the mouth which is opposite the opening sides of the compartment. Sound posts 23, 24 are positioned at the centre of gravity of the upper and lower sides 18. 19 to contact therewith, and the lower post 24 is adjustable to vary the pressure. Aperture of f-shape in the horn make communication with the enclosing compartment which may then act as a resonator. Shelves 5 may be arranged between pillars 4 and the compartments.
Patent GB-478676-A (GB)
Title: Improvements in or relating to apparatus for transmitting power from a propeller shaft to a propeller
IPC: B64C11/04
Filed: 1936-07-24
Abstract: 478,676. Universal joints; screw propellers. SILENTBLOC, Ltd. (Thiry, L.) July 24, 1936, No. 20507. [Class 80 (ii)] [Also in Group XXXIII] In apparatus for driving a propeller G from a shaft A, a rubber tube E, Fig. 1, is disposed between a tubular hub D and the surface of the shaft or a boss C secured thereto, and is so compressed radially that it adheres to the members C, D to transmit torque, while permitting limited relative movement by reason of the deformation of the rubber. Alternatively, the rubber tube may be compressed between two coaxial collars Q, N, Fig. 4, secured to the hub and the shaft respectively. In the form shown in Fig. 1, universal movement is possible. In a modification (not shown), ball-bearings are interposed between the hub D and the boss C to preserve alignment: In a further form permitting universal movement, rubber rings are interposed between the sides of the hub and flanges on the shaft boss, the rings being preferably tapered and the flanges conical. In the form shown in Fig. 4, a sleeve P of friction material is interposed between the collar N and the hub D to damp the relative motion between the hub and the shaft. An anti-friction bearing-sleeve Q<1> is interposed between the collar Q and the boss C.