baber/WOPTO huggingface dataset:
Patent GB-513889-A (GB)
Title: Improvements in collector heads or current collectors for trolley buses and the like
IPC: B60L5/08
Filed: 1937-12-31
Abstract: 513,889. Current collectors for electric vehicles. LIVINGSTONE, R., and ANTI-ATTRITION METAL CO., Ltd. Dec. 31, 1937, No. 19905/39. Divided out of 508,686. [Class 104 (iii)] In a current collector for trolley buses &c. the shoe 11 is supported by a spherical bearing 22 allowing free movement at least in one vertical plane containing the conductor, and the longitudinal dimension of the shoe or insert 10 forming the sliding surface varies throughout its depth so as to cause the vertical midplane X-X of the sliding surface to move with respect to 'the vertical centre line Y-Y of the bearing so as to compensate for the change in the relative positions of the geometric centre A of the bearing and the plane of the sliding surface caused by wear. The centre A may be below, coincident with, or above the sliding surface. The trailing end of the sliding surface may be bevelled so that an increasing length of surface becomes effective as the surface wears. The leading end may be undercut, and a rotatable shackle 29 has fingers 30 to engage in slots in the casting 26 and carries a ring or stirrup 31 to prevent the shoe from turning through 180 degrees. Specifications 465,088 and 508,686 are referred to.
Patent GB-156848-A (GB)
Title: Improvements in pump valves
IPC: F16K15/08
Filed: 1919-08-13
Abstract: 156,848. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Aug. 13, 1919. Check lift valves.-A valve for high-speed pumps is constructed with a resilient seating and a light sheet-metal valve member. A central hub 12 is connected to the casing 10 by a spider 11, and is threaded to receive the cap stem 13. This stem is tapered as at 14 and carries a spider 23 to which a depending sleeve 24 is attached. An annular india-rubber valve seat 17 is held in position by the ridge 18, and a second seat 20 rests on the hub 12. An annular valve 22 is formed of light sheet-metal, and is pressed on its seat by a spring 25. The inner edge of the valve is guided by lugs 28.
Patent GB-945332-A (GB)
Title: Preloaded ball joint
IPC: F16C11/06
Filed: 1962-05-24
Abstract: 945,332. Ball joints. FORD MOTOR CO. Ltd. May 24, 1962 [July 3, 1961], No. 20054/62. Addition to 924,972 as improved upon by 945,331. Heading E2F. In a joint having a bearing liner 33 according to the parent Specification and a back-up piece 38 surrounding the liner, a preloading ring 44 is positioned about the back-up piece to distort it inwardly about the ball. The back-up piece is moulded from a thermoplastic material to a generally cup shape and is snapped over the liner-covered ball whilst in a heated condition. The ring 44 is made of thin metal accurately sized and is seated on the overlapping edge 46 of the upper socket part 30. Axial slits 42 (not shown) are provided about the mouth of the back-up piece.
Patent GB-816996-A (GB)
Title: Method of producing organosilicon compounds
IPC: C07F7/12
Filed: 1957-06-26
Abstract: Organosilicon compounds, particularly fluorosilanes, are prepared by reacting alkali or alkaline earth metal silicon fluorides with aluminium trialkyls or their etherates or with aluminium alkyl fluorides, in the presence of liquid organic media boiling above 200 DEG  C., at a temperature between 600 DEG  and 400 DEG  C. The metal silicon fluoride specified is Na2SiF6. Suitable media are tetra-alkylsilanes from C3, paraffins from about C9, methyl naphthalene and mineral oils.  In the examples: (1) aluminium triethyl is added dropwise into a heated dispersion of Na2SiF6 in a mineral oil ("Viscobilol") at 230 DEG  C.  A mixture is distilled off comprising 60.7 per cent SiF2Et2, 23.1 per cent SiF3Et, 8.6 per cent SiFEt3 and 7.6 per cent SiEt4.  If the temperature is higher, the proportion of alkylsilane is increased.  (3) Aluminium triethyl etherate is reacted with Na2SiF6 in another mineral oil producing a mixture containing 60 per cent SiF3Et2.
Patent GB-1148055-A (GB)
Title: An analogue computer for use in determining static and dynamic extensometric strain
IPC: G06G7/68
Filed: 1966-05-06
Abstract: 1,148,055. Strain computation. POLITECHNIKA WROCLAWSKA. 6 May, 1966. [8 May, 1965], No. 20199/66. Heading G4G In electric analog computing apparatus for extensometric measurements of strain in a flat member wherein extensometric bridges and strain gauge rosettes measure strains # - #, # 0 , # + displaced mutually by angles #, strain analogue voltages are derived and are applied together with preset constants #, Á for computation of analogue voltages of output variables tan 2 #0 , # 1 , # 2 , #red, for recording, wherein it is shown that where 90 is the angle of transformation between # 1  and # 0 ; # 1  is maximum strain; # 2  minimum strain; # red  is reduced strain; Áis Poisson's ratio. The analogue computing network (Fig. 4) comprises for (1) an adder 4 receiving a (# - #) signal direct and a (# + #) signal through inverter 7 to energize a resistance network multiplying by tan # to energize a divider 6 also receiving the output of adder 8 energized by the output of inverter 7 and # 0  signal multiplied by coefficients 2, and the output of adder 4 multiplied by coefficient 1; the output of 6 representing tan 2# 0 . For equation (2), input # 0  signal also energizes a resistance network multiplying by cos 2# to energize adder 17 together with the output of inverter 7 both multiplied by coefficients 2, together with the output of adder 4 multiplied by coefficient 1. The outputs of network 5 and adder 8 are respectively squared at 9, 10; added at 11 with coefficients 1 and applied to resistance-network 12 multiplying by whose output is inverted at 13 and applied to square root circuit 14, whose output is applied to adder 19 also receiving the output of a resistance network 18 multiplying the output of adder 17 by (1/4sin<SP>2</SP>#) ; the adder 19 introducing coefficients 1 in each input and its output being inverted at 20 to produce the required analogue output voltage # 1 . For equation (3) a similar circuit is used with an inverter 15 following square root circuit 14 and energizing unity coefficient adder 21 receiving also the output of resistance network 18; its output being inverted at 22 to produce the required analogue output voltage # 2 . For equation (4) the output of resistance network 18 is squared at 25 and applied to resistance network 24 multiplying by while the output 24 of inverter 13 is applied to resistance network 23 multiplying by and the network outputs are added at 26 with unity coefficients and inverted at 27, after which square root circuit 28 produces the required analogue output voltage # red . The constants #, Á are introduced by ganged switching of the respective resistance networks.
Patent GB-1178844-A (GB)
Title: Improvements relating to Record Players
Inventor: ROBINSON PAUL BARON HENN
IPC: G11B3/38
Filed: 1966-05-06
Abstract: 1,178,844. Gramophone pick-ups. DISCATRON Ltd. 18 April, 1967 [6 May, 1966], No. 20239/66. Heading G5R. A stylus cartridge 18 is movable linearly and substantially radially with respect to the record disc along a guide rod 11 and is urged towards the record by a tension spring 32. A second parallel guide rod 10 is engaged on opposite sides by a first finger 22 secured to the cartridge carriage and a second pivotally mounted finger 23 to which one end of the spring 32 is attached. Specifications 1,094,171, 1,094,172 and 1,094,173 are referred to.
Patent GB-805537-A (GB)
Title: Improvements in electro-hydraulic servo mechanisms
Inventor: LASBREY IAN KENNAN BERTRAM
IPC: F15B9/17
Filed: 1955-07-13
Abstract: 805,537. Fluid-pressure servomotor control systems; valves. SHORT BROS. & HARLAND Ltd. Oct. 9, 1956 [July 13, 1955], No. 20280/55. Class 135. In a servo mechanism comprising an hydraulic actuator and a piston-type control valve controlled by electrical signals through the agency of a transducer to displace the control valve to actuate the output member of the actuator in correspondence with the electrical signals, the transducer comprises a housing 19, Fig. 2, mounting between its two halves in resilient gaskets, a diaphragm 18 of magnetic material coacting on its opposite faces with polepieces 20, each of which carries a driving coil 21 energized by an amplifier to which electric signals are fed. Each polepiece is formed with a projecting nozzle 23 connected by a duct 24 to ducts 25, 26, Fig. 3, connected respectively through restrictions 25A, 27 to a pressure liquid supply inlet 13 and one end of the plunger 11 of the control valve. The control valve includes a port 32 connected to the supply inlet 13, ports 33 connected to opposite ends of the actuator and ports 29 leading to the interior of the housing 19 on opposite sides of the diaphragm 18, so that on movement of the control valve to admit pressure liquid to one end of the actuator 10 and expel it from its other end the expelled liquid acts on the diaphragm in opposition to the applied electrical force to produce hydraulic feed-back before being finally exhausted through one or other of restricted outlets 30. A member 17 connected to the output member of the actuator is associated with a potentiometer 16 which feeds back into the amplifier electrical signals of an opposite sense to those originally received to produce electrical feed-back. For operating a single-acting actuator one of the polepieces and associated nozzle may be dispensed with and replaced by a dummy housing and the control valve biased, e.g. by a spring against hydraulic pressure exerted on it from the duct leading to the nozzle of the remaining polepiece.
Patent GB-148372-A (GB)
Title: Improvements in surface-working machines
IPC: B23D79/00
Filed: 1920-07-09
Abstract: 148,372. Anderson Bros. Manufacturing Co., (Assignees of Anderson, S. F.). Dec. 20, 1918, [Convention date]. Percussive hand tools.-A fluid-pressure, reciprocating, hand-guided scraper is provided with a carriage 16 supported by an over-head beam or rail to which it is clamped by a block actuated by fluid pressure during each forward movement of the tool. The machine 17, Fig. 1, may be swung vertically about a bolt 37, Fig. 2, and horizontally about a pivot 32. The cylinder 52, Figs. 4 and 12, has two bores 53, 54 in which reciprocates the differential piston 55, 56 to which is secured the tool-carrying shaft 57 by means of a part 58 rotatable in a screwed coupling 61. Air is continually supplied to the lower end of the bore 53 by a pipe 64, and passes by passages 66 through longitudinal and transverse passages 69, 71 to a central opening 72 controlled by a valve 73 with opposed seats which is pressed up by a spring 78 acting in a collar on the manually controlled rod 76. On depressing the valve 73 air passes to the top of the piston by ports 79 and forces down the piston until the supply is cut off by the closure of ports 66, Fig. 12. At the same time the top of the cylinder is put to exhaust through passages 81, 82 annular passage 83, and passage 84 to the central space 77 and the atmosphere. The pressure in box 53 reverses the piston. The valve 73 is regulated by a sleeve 22 connected by a rod 89 and yoke 91 to the valve spindle 76. When air is admitted to the head of the cylinder 53 for the wording stroke, the carriage is simultaneously clamped in position. The speed of the working stroke is governed by an oil reservoir 93 secured by a cross-head 94 to the piston 55 and steadied by guides 95, 96 on the cylinder. A piston 99 secured to the cylinder 52 slides in the cylinder 93. The oil reservoir communica.tes through the ports 105, 103 and passage 106 with the interior of the piston. The speed of working is adjusted by a valve 104. In a modification of the reservoir, ports in the piston 99, controlled by a spring-pressed valve, permits a quick-return motion of the tool.
Patent GB-945701-A (GB)
Title: Process for polymerizing unsaturated monomers using high energy ionizing radiation
IPC: C08F2/46
Filed: 1961-06-05
Abstract: Ethylenically unsaturated monomers are polymerized by exposing them to high energy radiation in the presence of a material consisting of finely divided particles of an alkali metal halide, a substance having at least one OH group or an oxide of boron or aluminium. The polymerization is preferably carried out in bulk, but may also be effected in organic solvents or in aqueous emulsion systems containing the usual emulsifiers. The examples describe the polymerization of the following monomers: alpha-methyl styrene, dichlorostyrene, diisopropylstyrene, p-methoxystyrene, p-tertbutylstyrene, isobutylene, mixtures of isobutylene with butadiene, isoprene, piperylene, propylene and alpha-methylstyrene, and isoamylene, in the presence of the following finely divided solids: lithium fluoride, chloride, bromide and iodide, sodium chloride, potassium chloride, bromide and iodide, cesium fluoride and chloride, a mixture of lithium and magnesium chlorides, calcium, barium, lithium, bismuth, copper and nickel hydroxides, boric anhydride, aluminium oxide, alumina-silica, alumina-magnesia and alumina-titania.  The particles of inorganic material may be used in unsupported or in supported form, e.g. they may be placed on an adhesive material such as an epoxy resin which is then cured. The high energy radiation may be supplied by X-rays, neutron, proton and electron beams, gamma rays.  Other monomers listed include acrylic and methacrylic esters, amides and nitriles, styrene, vinyl and allyl esters and ethers, vinyl ketones, vinyl and vinylidene chlorides and olefins. Copolymers of isobutylene with diolefines produced by the above process may be cured either by treatment with curing agents, e.g. sulphur, sulphur chloride, sulphur thiocyanate and thiuram polysulphides, or by a chlorination-dehydrochlorination procedure.
Patent GB-862247-A (GB)
Title: Guides for the weft thread insertion members of looms
IPC: D03D49/60
Filed: 1959-06-15
Abstract: 862,247. Shuttle races. SULZER FRERES S. A. June 15, 1959 [June 28, 1958], No. 20491/59. Class 142(2) A shuttle race for a gripper shuttle loom consists of a comblike assembly of guide elements 10 moulded from nylon or sintered ceramic containing an oilbearing impregnant. Semicircular grooves 31 in both sides of the elements register to form holes for screws passing through a retaining plate 33 and into the slay 11. A sharp edge 25 enters the shed first as the slay recedes, followed by the widest part 26 of the head 13, which holds the warp threads apart to ensure that the part 29 enters between the same warp threads.
Patent GB-860986-A (GB)
Title: An apparatus for bringing space heating devices into operation, particularly in motor vehicles
IPC: F23N5/24
Filed: 1958-06-27
Abstract: 860,986. Controlling burners. BAIER, L., BAIER W.. BAIER, W., BAIER, W., and SCHLUMPRECHT, E., [trading as BAIER KOMM.-GES., W.], June 27, 1958 [July 24, 1957], No. 20658/58. Class 75 (1). In a control device for a motor 4 driving a fuel burner atomizer, a fuel pump and a combustion air blower and comprising a spring operated time switch 2 and a safety switch 5 responsive to the burner flame, the spring operated switch 2 comprises two stationary contacts 15, 17 and two co-operating moving contacts 14, 16 disposed between the current source 1 and the motor 4, and a third moving contact 10 co-operating with a third stationary contact 11 in a circuit for a glow plug 3 for igniting the burner. At starting the spring switch 2 is wound up to the position of the moving contacts 10, 14, 16 shown in full lines and winds down in the direction of the curved arrows. First the moving contact 10 makes contact with the fixed contact 11 to energise the glow plug 3. Later the moving contact 14 makes contact with the fixed contact 15 and later still the moving contact 16 makes contact with the fixed contact 17 and only when both these moving contacts 14, 16 are making contact is the motor 4 energised. If ignition occurs the flame responsive switch 5 closes to energise a relay 7 which closes contact bridge 31 to by-pass switch 16, 17 in the motor supply circuit. The relay also closes relay bridge 30 which energises a lamp 9. If ignition does not occur the switch 16, 17 is not by-passed and consequently when the moving contact 16 breaks contact with the fixed contact 17 towards the end of the movement of the spring switch the motor 4 is deenergised. The moving contact 14 remains in contact with the fixed contact 15 at the end of the movement of the spring switch. The moving contact 10 de-energises the glow plug 3 before the end of the movement of the spring switch. A device 6 de-energises the relay 7 if the apparatus becomes overheated. If the moving contact 14 is switched to engage a contact 32 the motor 4 runs at reduced speed. If the moving contact 16 is moved anticlockwise from the full line position to bridge two contacts 33, 37 a coupling 34 between the motor 4 and the burner atomizer, the fuel pump and the combustion air blower is disconnected and the motor drives only a second air blower so that the apparatus serves as a ventilating device.
Patent GB-662204-A (GB)
Title: Improved apparatus for delivering small articles
IPC: A24F15/04
Filed: 1949-08-09
Abstract: 662,204. Cigarette &c. boxes. ZANDERS, M. B. Aug. 9, 1949, No. 20701/49. Class 18. A box 12 containing cigarettes or other small articles is mounted on a base 10 and has a sloping plate 17 arranged so that one cigarette at a time is fed onto a groove 16 in a slider 15. A spring strip 22 connects the slider to a pivoted drum 24 which carries one or more figures 28 each having diverging members constituting a gripper 29. On depressing a thumb-piece, not shown, the figures are tilted forward and the slider is pulled out, a cigarette in the groove being wedged in the grippers. On releasing the thumb-piece the strip returns the parts to their original position, the cigarette being thus presented for removal. The top of the box is closed by a flanged lid in the form of an ash tray. A mains operated lighter, as described in Specification 629,732, [Group XI], or a bed-side lamp may be mounted on the base.
Patent GB-269388-A (GB)
Title: Improvements in and relating to mountings for thermionic valves or the like
IPC: H01R33/76
Filed: 1926-08-23
Abstract: 269,388. Fleming, E. H. Aug. 23, 1926. Vacuum tubes. - Shockabsorbing holders for thermionic valves and like vacuum tubes are constructed wholly of soft rubber in the form of an integral moulding with recesses or apertures l for the contact sockets k which are connected by flexible leads n to terminals o in the integral base b. The base b may be fixed directly to the panel of a radio set by screws passed through holes in the base or may be provided with an insulated cover-plate p secured by tubular rivets and rubber solution. The moulding may be in the form of an inverted dished cup with a circular base b, a vertical or inwardly inclined wall c, and a depending body e forming an annular air-space f and an air-space g between the body e and the plate p. The resiliency of the rubber is assisted by the pneumatic effect of the spaces f, g. The sockets k do not extend to the upper surface of the body e, apertures h being provided to receive the valve legs. The sockets k are moulded or fixed within the body e and may have projecting screwed ends to receive the leads n and to limit descent of the body e on the insertion of a valve, or an integral dependence m on the body e may limit this descent. The leads n may be moulded within the rubber with their ends projecting for connection to the sockets k and terminals o. The Provisional Specification refers to lamp-holders and describes a modification with anchored screw sockets in the base and with an additional socket anchored in the moulded body by radial flanges and receiving a clamping screw for an insulating plate apertured to correspond to the valve pins.
Patent GB-599637-A (GB)
Title: Limited torque tool
IPC: B25B23/142
Filed: 1945-08-14
Abstract: 599,637. Stress indicating wrenches. LIVERMONT, F. W. Aug. 14, 1945, No. 20898. Convention date, Sept. 4, 1944. [Class 106 (ii)] [Also in Group XXIII] A torque overload release wrench, screwdriver, &c. comprises one or a number of spiral springs 11 with the inner end fixed to the tool stem 7 and the convolution part 11 bearing frictionally on the conical interior 12 of the handle 3, the release torque being varied by adjusting the screw sleeve 14 bearing on the spring causing it to become more constricted. In the modification shown in Fig. 8, the release torque is varied by adjusting a screw 46 actuating a thrust bar 47 bearing on a washer 49 above the friction spirals and is indicated by numerals on the rim of a wheel 52 fixed to the screw 46 observed through an opening 53 in the handle and by other numerals alongside slots 51 in which moves a pointer 50 carried by the bar 47.
Patent GB-359008-A (GB)
Title: Improvements in or relating to separable fasteners
IPC: A44B19/06
Filed: 1930-07-11
Abstract: 359,008. Sliding - clasp fasteners. POUX, N. J., 745, North Street, Meadville, Pennsylvania, U.S.A. July 11, 1930, No. 21004. Convention date, July 11, 1929. [Class 44.] To make the fastening members of a sliding-clasp fastener less conspicuous on one face of the stringer one of the clamping jaws by which each member is secured to the stringer is made thinner than the other, or only one of the jaws is deformed in the clamping operation, so that the attached member is offset towards one face of the stringer. The edge reinforcement of the stringer may also be offset initially. The members 1, 2 attached to stringers T, Ta are operated by a slider to bring the usual projections 4 and recesses 3 into engagement. Fig. 2 shows each member provided with a recess to receive an offset beaded edge 6 of the stringer, one jaw being relatively thick with an upstanding lip 11, and the other jaw 12 flat and relatively thin to facilitate deformation in the clamping process. The slider is correspondingly unsymmetrical, having a channel member 8 at one side which guides the fastening members in the usual way, and a thin flat plate 9 at the other side. Member 8 has the usual operating tab 10 secured thereto. Modifications of the members 1, 2 are described in which the lower jaw is provided with teeth, or with an inturned lip to increase the grip on the stringer. Fig. 3 shows a further modification in which the edge of the stringer is inserted in a recess in the upper face of the fastening member, and the upper plate of the slider is narrower than member 8 and has shoulders 9a. The Specification describes various methods of providing the stringer with an offset reinforced edge by folding upon itself, or as in Figs. 2 and 3, upon a reinforcing cord 5, and securing by stitching, and a form in which a cord is stitched to one face of the stringer.