baber/WOPTO huggingface dataset:
Patent GB-875924-A (GB)
Title: Process for the polymerisation of ª--olefins to linear high molecular weight highly crystalline polymers
IPC: C08F10/00
Filed: 1958-02-25
Abstract: 875,924. Polymerizing alpha-olefins. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Feb. 25, 1958 [Feb. 26, 1957], No. 6068/58. Class 2(6). Alpha-olefins are polymerized to linear, crystalline polymers using a catalyst prepared by contacting (1) an organometallic compound of a Group I, II or III metal with (2) a compound of a Group IV(A), V(A) or VI(A) metal (compound (2) being soluble under polymerization conditions and the reaction product of (1) and (2) also being soluble in the polymerization solvent) and (3) a crystalline compound of a Group IV(A), V(A), VI(A) or VIII metal in which the metal has a valency lower than its maximum (compound (3) being insoluble under the polymerization conditions). Propylene and butene-1 are specified olefins while organo metallic compound (1) may be methyl aluminium or aluminium diethyl chloride. Specified compounds (2) are titanium, vanadium and chromium alkoxides and monohalogeno-alkoxides, titanium dichloroacetylacetonate, vanadium or chromium triacetylacetonate, zirconium tetra-acetonate, titanium or vanadium chloride-acetates, dichlorodicyclopentadienyl titanium, titanium isopropylate and titanium dichloro-diacetyl-acetonate, while examples of crystalline compounds (3) are titanium dichloride, titanium trichloride, vanadium trichloride, cobaltous chloride and chromium trichloride. The solvents specified are n-heptane, benzene, and toluene. The polymer is extracted successively with hot ether and hot n-heptane, giving amorphous, partially crystalline and crystalline fractions, or with acetone, ether, hexane and heptane. Specification 852,956 is referred to.
Patent GB-489789-A (GB)
Title: Improvements in or relating to amusement apparatus
IPC: A63G29/00
Filed: 1937-03-01
Abstract: 489,789. Tricycles. HELLESEN, L. G. March 1, 1937, No. 6096. [Class 136 (iii)] [Also in Group XV] Tricycles are provided for persons to ride on in a joy wheel bowl. They may consist simply of a seat 30 with a steerable front wheel 26 and two castor wheels 27. This construction is simply pushed around. In another form, a seat 51 is provided and the steerable wheel 45 is hand driven by a chain 43 and cranks 48A. In this construction also the rear wheels 37 are pivoted castor fashion.
Patent GB-697683-A (GB)
Title: Improvements in or relating to sound producing instruments
Inventor: COADE HERBERT GORDON
IPC: G10K9/04
Filed: 1951-03-14
Abstract: 697,683. Diaphragm. horns. VICKERS-ARMSTRONGS, Ltd. Dec. 17, 1951 [March 14, 1951], No. 6144/51. Class 13. In a horn, in which fluid under pressure is directed by a nozzle 6 against a diaphragm 1 secured at its periphery, the fluid is deflected away from the outer part of the diaphragm 1 by means of a dished plate 8. The diaphragm 1 consists of a number of discs 4 secured by a rivet 5 to the plate 8. Alternatively, the plate 8 may be brazed or welded to the adjacent disc.
Patent GB-557418-A (GB)
Title: Improvements relating to sliding clasp fastener closures
IPC: A44B19/32
Filed: 1942-05-07
Abstract: 557,418. Sliding-clasp fasteners. SIEDLECKI, Z., and SIEBE GORMAN & CO., Ltd. May 7, 1942, No. 6174. [Class 44] In a sliding-clasp fastener of the kind provided with sealing means to provide a fluid-tight closure the foundation strips 3 which carry the fastener members 4, 5 are arranged to embrace a substantial portion (shown as approximately half the circumference) of the sealing members 1, 2. Members 1, 2 are shown as tubular (circular in cross section when the fasteners are released). As shown a bonding-strip 7 of rubber-coated fabric is vulcanized between each member 1, 2 and its foundation strip 3, which is shown as a single strip with fastener members attached to both edges. Strip is secured to the garment &c. 8 by strips 9, 10 of adhesive tape further secured by stitching. Various modifications are described in which each strip 3 shown is replaced by a pair of tapes each provided with fastener members on one edge. The inner and outer fastener members are operated by separate sliders, not shown, the inner slider having operating means extending between the strips 1, 2, so as to be accessible from the outer side. When both rows of fastener members are engaged the sealing strips are tightly held in an embracing loop or formed by strips 3 and characteristic of the invention, effective sealing requiring engagment of both sets of fasteners. At the end at which the stringers are permanently connected the seating members are tightly bound,by rubber and fabric 11, 12, Fig. 6, and intermediate spaces filled by fillets 13, all vulcanized in place. In a modification, Fig. 10, a sliding-clasp fastener is provided on one face; the closure at the other face being completed by tabs (or a strip) 30 permanently secured along one edge, the tabs being drawn over the sealing members and secured by pressstud fasteners 32, 33. Additional press-studs 34 are provided by which the tabs are held when out of use by sockets 35. Alternative crosssections of solid sealing members are described for use in place of the tubular members 1. 2 shown.
Patent GB-899751-A (GB)
Title: Method of and apparatus for regulating a forced-flow, once-through steam generator
IPC: F22B29/08
Filed: 1959-02-24
Abstract: 899,751. Fluid-pressure servomotor-control systems. SULZER FRERES S.A. Feb. 24, 1959 [Feb. 26, 1958], No. 6396/59. Class 135. [Also in Group XXXV] Boiler feed-water flows through a valve 2, Fig. 2, an orifice 35, an economizer 4, parallel vaporizing tubes 51 including a pilot tube 6, an outlet header 50 and a steamwater separator 9 with a level regulator 90 which actuates a drain valve 11 in a " separated water " line 110 provided with an orifice 120. The feed-water valve 2 is operated by a spring- loaded single-acting piston 27 whilst a relay 30 is operated by the pressure difference across the orifice 35 via a diaphragm and a cam 38. The outlet end of the tube 6 comprises an insulated section 82, the thermal expansion of which is measured and transmitted to a relay 80 by a cam 81 whereby an hydraulic pressure signal corresponding to the measured temperature is sent into a line 18. The pressure difference across the orifice 120 is transmitted to a relay 125 by a diaphragm 12 and a cam 123. The hydraulic signals produced by relays 30, 125 are connected through adjustable throttles 16, producing an integral action, to the opposite sides of a piston 134 which actuates a relay 130, the hydraulic signal from which is fed into a line 17. The signals in lines 17, 18 are added in a device 15 and cause operation of a regulator 14 embodying a damping piston 140, a balance line with a throttle 142, a valve 147, and a return line 144, the position of valve 147 controlling the piston 27 or a burner 20 by adjustment of a fuel valve 21 and a combustion air valve 22 or the ratio between burner intensity and feed water supply. The spring 271 of the piston 27 may be adjusted manually or automatically in accordance with load. In a modification, Fig. 3 (not shown), the output of relay 30 is also taken directly to the addition device 15 whereby a pre-correction of transient feed-water fluctuations is obtained before the signal from relay 130 is effective. In another modification, Fig. 4 (not shown), an orifice is disposed in the steam line 91, the flow through which is converted into a pressure signal by means of a diaphragm, cam, and relay, which signal is transmitted to the device 15 ; a by-pass line with an adjustable throttle is provided whereby the signal dies away after a time dependent upon the throttle setting and producing a differential effect. In other embodiments the hydraulic control apparatus is replaced by the equivalent electrical apparatus (see also Group XXXV).
Patent GB-162148-A (GB)
Title: Improvements in wood screws
IPC: F16B25/00
Filed: 1920-03-03
Abstract: 162,148. Caldwell, J. W. March 3, 1920. Wood-screws; drive-screws.-A single or multithreaded drive or turn-screw has a screwed portion made up of a substantially cylindrical part D and a tapered end part D', the threads on the tapered part increasing in height from the large to the small end. In the double-threaded screw shown, the threads T, T<1> on the conical part D<1> increase in height and decrease in thickness from the thread t<8> to the thread t<2>. The underside of the thread t<2a>, t<8a>, Fig. 2a, is of uniform pitch and constant radius s<1> and is concave or cup shaped, while the upperside of the thread t<2b>, t<8b> has a smaller radius s" and a greater pitch. Instead of being curvilinear in profile, the threads may be straight. The threads are so proportioned that the external diameter at the lower end of the thread is approximately equal to the internal diameter at the upper end of the conical part. With this construction, the thread or threads at the point form incisor edges suitable for rotating the screw when driven by a hammer, and as the screw is entered, the fibres of the wood are gradually compressed. To enable the head H of the screw better to resist a blow, the slot h<4> is formed in two parts, as by suitable milling tools, having a bridge piece h<6> Fig. 5, at the centre. The slots are engaged by a suitable driver R. Specification 21260/99 is referred to.
Patent GB-434529-A (GB)
Title: Improvements in the steering of automobiles
IPC: B62D7/16
Filed: 1934-03-01
Abstract: 434,529. Motor - vehicle steering- mechanism. DAY, B. I., Wittering House, Duffield Road, Allestree, Derby. March 1, 1934, No. 6575. [Class 79 (v)] In a vehicle having independently-sprung front wheels and steering arms g<2> which project inwardly from the stub axles more than is required for Ackermann steering, the steering mechanism comprises two levers e mounted on the chassis frame on vertical or substantially vertical pivots d<1>, each lever being connected by an inclined rod g<1> to one of the steering arms g<2> and projecting in the opposite direction to the steering arm, the angularity of the steering rods being such as to correct the excess inward projection of the steering arm. In the construction shown each stub axle b<3> is connected by a steering pivot b<4> to a member b<2> connected by suspension levers b, b<1> to a transverse frame member a<1> bolted to the side frame members a. The brackets c are bolted to the member a<1> and their outer ends are connected together by a bar d. The steering lever pivots d<1> on the brackets are parallel to the stub axle pivots b<4>. The steering levers e are connected together by a track rod f and one of them is actuated by the usual drag link f<2>. The horizontal projection of each link g<1>, as seen in Fig. 3, is equal to the length of each of the suspension levers b, b<1> or to one of them if they are of different lengths.
Patent GB-581419-A (GB)
Title: Selective amplifiers employing electron discharge tubes
IPC: H04B1/16
Filed: 1944-04-07
Abstract: 581,419. Square wave and sine wave generators ; frequency dividers. STANDARD TELEPHONES & CABLES, Ltd. April 7, 1944, No. 6580. Convention date, Sept. 18, 1942. [Class 40 (v)] In a thermionic valve circuit for producing an output wave different from the input, a resistance - capacity phase shifting network couples the output to the input, producing, with the valve, a 360 degree shift at a harmonically related frequency of the input, the circuit normally being maintained quiescent in the absence of an applied wave, and a high input impedance being provided over which the input is applied to the valve. The phase shift network 3, 4, 2, Fig. 1, coupling the anode to the grid of valve 1 is arranged to give a 180 degree phase shift at the fundamental or some harmonic of the applied square wave A, to produce an output sine wave B. To prevent oscillation in the absence of an incoming signal, the load 18 is made small and the screen grid potential adjusted. The high resistance 23 attenuates the input so that frequencies other than that required are not amplified to an appreciable extent. To produce sub-harmonics, as in a frequency divider, the phase shift network is adjusted for a submultiple frequency of the fundamental and the input driving voltage is increased. In a modification, Fig. 2 (not shown), the condensers and resistances in the phase shift network 2. 3, 4, are interchanged. In a further modification, Fig. 3, for producing a square wave output, the valve 40 is back coupled over a phase shift network to give 360 degrees shift at the fundamental or a sub-harmonic and feeds a triode 50 normally biassed off by the potential drop over the common cathode load 54. The positive half cycles cause valve 50 to conduct, in turn biasing off valve 40. Valve 50 continues to conduct until condenser 57 discharges sufficiently to reduce the anode current and allow valve 40 to pass current, valve 50 then being cut off by multivibrator action over the common coupling resistance 54.
Patent GB-268536-A (GB)
Title: Improvements in or relating to windows for automobile and other vehicles
IPC: E05F11/38
Filed: 1926-03-09
Abstract: 268,536. Haarnagell, G. March 9, 1926. Addition to 194,433. Vehicle windows; sashes balanced by springs.- A modified form of the balancing device described in the parent Specification consists of two pairs of levers 11, 12 symmetrically arranged on the outer face of the sash and controlled by springs 15, 19. The frame 1 is pivoted at 8 and the sliding sash is pivotally connected to the balancing device at 21 so that when fully raised the sash and the frame 1 may be pivoted together into the vehicle. An adjustable rack 3 is fixed to the frame and the sash is secured in any position by means of the gripper 4. The centre of gravity of the window lies on a vertical line between the hinge 21 and the outer wall. The balancing levers are pivoted on a cross-bar 17 secured to the frame outside the sash guides.
Patent GB-192307-A (GB)
Title: An improved method and apparatus for making bricks
IPC: B28B3/08
Filed: 1922-03-07
Abstract: 192,307. Whittaker, C. H. March 7, 1922. Stationary-mould machines.-In a brick-moulding machine of the type described in Specifications 3481/34 and 7456/93, in which the material is compressed in a stationary mould between upper and lower plungers, the lower plunger is positively reciprocated at least twice during the compressing operation in order to smooth the surface of the bricks. The upper plunger C is supported on a cross-head E reciprocated in vertical guides G by connecting rods E<1>, and is adapted to fall under its own weight and is also forced down positively by pins H<3> on the driving wheels H which engage projections E<5> on the connecting-rods E<1>. Cams H<2> mounted in the driving wheels H and working in slots E<3> in the rods E<1>, engage rollers E<4> thereon so as to lift the plunger C clear of the mould during charging. The lower plunger D is mounted in a. drop box C<1> .sliding in vertical guides F, and is reciprocated by a cam J wich engages a roller c<2> mounted on the box C<1>.
Patent GB-105139-A (GB)
Title: Improvements in Packing Cases.
Inventor: BOLTON ANDREW ADAMS
IPC: B65D6/16
Filed: 1916-03-10
Abstract: 105,139. Bolton, A. A. May 10, 1916. Knock-down boxes &c.-The ends a, b of a packing-case are hinged to the bottom so that they may fold inwards thereon. The sides comprise fixed parts d, e, to which are hinged the parts d<2>, e<2>, the part d<2> folding on to the ends a, b and the part e<2> folding on to the part d<2>. The hinges of the sides may be let into the wood ; or the ends may be slotted at a<1>, b<1> to clear those hinges in the act of folding. Perforated hinged flaps h take over pins g when the case is erected, and screw-pins j, which may have shanks fixed in recesses in the sides, enter holes k<1> in the lid k and receive securing- nuts; the studs g enter recesses in the lid. The flaps h may be let into the wood; or the lid may be recessed to accommodate them. Vertical screwpins may be secured to the parts d, e so as to rest in recesses in the erected sides; when the lid is placed on the folded parts, these pins may enter the holes k<1> and receive the nuts.
Patent GB-628016-A (GB)
Title: Improvements in or relating to fuel injection pumps for internal combustion engines
IPC: F02M59/00
Filed: 1947-03-10
Abstract: 628,016. Fuel-injection pumps. EVANS, A. F., and HOPKINS, S. March 10, 1947, No. 6682. [Class 102(i)] A fuel-injection pump of the type having a plunger 13 adapted to reciprocate within a fixed sleeve 23 which has a spill port 34 spaced rearwardly of a suction port 24, the plunger being provided with an axial bore 25 communicating with a diametral hole 26 which is unmasked by the helical edge of the spill port to terminate injection and the plunger being rotatable to vary the pump delivery, a thin ferrule 35 the inner edge of which joins the helical edge 33 of the spill port is pressed into the rear end of the sleeve. Fuel is supplied under a pressure of about 10 lbs. per sq. inch through an inlet 11 and is delivered through a delivery valve 27 to an injection nozzle 17, the excess fuel being returned to supply through an outlet 12. Two spill ports and two suction ports are zonally provided diametrically opposite to each other respectively to prevent lateral pressure on the sleeve. The plunger is rotated by a rack 39 through a pinion disc 41 and sleeve 44 spliced to the plunger, the disc and sleeve being rotatably adjustable relative to each other by a fine worm thread so as to provide independent adjustment when a number of pumps are connected by a common rack. The plunger may be actuated mechanically, e.g. by a cam acting on a tappet head 22 or in another embodiment by air compressed in an engine cylinder acting on a motor piston coaxial with the plunger and which may be admitted through a tappet operated air timing valve, the return stroke in each case being effected by a spring such as 20. Specification 626,994 is referred to.
Patent GB-417716-A (GB)
Title: Improvements in and relating to greenhouses, forcing frames and like structures
IPC: A01G9/14
Filed: 1933-03-06
Abstract: 417,716. Glasshouses. BARR, J. W. H., South Bersted Nurseries, Bognor Regis, Sussex. March 6, 1933, No. 6800. [Class 20 (i).] A glasshouse, forcing frame, or similar structure, is formed of metal trusses connected together by angle or channel bars, over which the angled edges of the light frames may be hooked so as to be readily removable. The frames are formed of angle uprights 4, 5, connected by roof members 8, 9 which are inclined to each other, the centre joint supporting a channel-iron 13, with inturned edges over which the angled edges 21 of the light frames hook. Further channels are supported at the eaves and form drainage channels, and the side of the house may be formed of inclined frame members 15 having lights at their upper portions and corrugated iron at the bottom portions. The feet of the supports are extended so as to provide a broad bearing surface and are detachably connected to concreted footing plates 18. Removable lights 26 may be used to stop off any bay of the house, and the ends are filled in with glass or metal frames. Intermediate longitudinal supports may be provided where overlapping glass frames are used in the roof.
Patent GB-658812-A (GB)
Title: Improvements in carrier bicycles
IPC: B62K3/10
Filed: 1949-03-12
Abstract: 658,812. Carrier cycles. COVENTRY-EAGLE CYCLE & MOTOR CO., Ltd., and WARDLE. H. March 12, 1948, No. 6800. [Classes 136 (i) and 136 (iii)] In a carrier bicycle of the kind wherein the rear forks are directed in a downwardly-inclined manner from the bottom bracket so that a small rear wheel may be used, the rear forks being connected in the vicinity of the rear axle lugs to the seat pillar tube by one or more pairs of stays arranged so that carrier means may be supported over the rear wheel, each rear fork 7 is provided beyond its rear axle lug 9 with an extension 10 which supports a container 19, a chair or the like over the rear wheel 8. The rear forks 7 are braced from the seat pillar tube 4 by stays 14, 15. The lugs 9 comprise slotted plates 11 to receive a rear wheel spindle and channelled parts 11 brazed to the undersides of the forks 7.
Patent GB-569004-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P5/68
Filed: 1941-05-31
Abstract: 569,004. Control of D.C. motors. TUSTIN, A., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 31, 1941, No. 6986. [Class 38 (iii)] A motor 1 required to develop a constant torque, for example for driving a positive dis. placement pump of an oil servo system, is supplied from a constant voltage source 7 in series with the secondary brushes of a " Metadyne ". machine 4. The variator winding 9 is supplied with a constant current through a carbon pile regulator 10, and the motor Held 13 is either supplied from the same regulator or else it is in series with the motor armature. As shown the machine 4 is a generater driven by a motor 6. It may, however, be a " Metadyne " transformer with its primary brushes supplied from another source, or else constructed with two separate armature windings and commutators with the primary circuit supplied from the source 7.
Patent GB-678464-A (GB)
Title: Improvements relating to the fault protection of electric heater and similar circuits in electric vehicles
Inventor: RAMSDEN HERBERT KAYE
IPC: B60L1/02
Filed: 1950-03-21
Abstract: 678,464. Protective cut-out systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 3, 1950. [March 21, 1950] No. 7074/50. Class 38 (v). A number of electric heater or similar load circuits H1<SP>1</SP>, H1<SP>11</SP> in an electric vehicle, are grouped in pairs in parallel, each pair having a contactor C1 with a common main contactor C, no-current relays R1 ... R6 being connected in the earth side of the circuit. The relay contacts r1 ... r6 are in series with a master relay MR, having a maintaining contact MR2 and a contact MR 1 in series with the contactor coils CC, CC1, the contacts r1 ...r6 being arranged so that de-energization of any relay R1 ... R6 on an earth fault in the corresponding heating circuit opens its contact to de-energize relay MR and so cause the contactors CC, CC1 to open to de-energize all the heating circuits. The contactors are reclosed by depression of a reset button RS to energize relay MR over contacts RS1 and prepare the contactor-coil circuit at MR1, this circuit being completed at contacts RS2 on release of the button, and maintained over auxiliary contactor contacts C/1. The individual contactors C1 &c. may be opened by de-energization of their coils at thermally- or pressure-actuated contacts T1 and retained open by opening isolators IS1. In a modification; Fig. 1 (not shown), the contacts of the nocurrent relays are directly in series with a single contactor coil, which when the contactor opens, closes a further auxiliary contactor contact in an indicator circuit.
Patent GB-694108-A (GB)
Title: Mechanical hay, corn or manure loader
IPC: A01D87/00
Filed: 1950-03-22
Abstract: 694,108. Load-handling machines. HURSTHOUSE, S. Sept. 18, 1950. [March 22, 1950] No. 7108/50. Class 78 (iii). In a rear discharge scoop arm loader having a tine frame A rigidly secured to the arms C, the ends of a spring loaded bar H engage the arms at the end of the lifting movement and assists the return over centre movement. Luffing is effected by a winch drum F which is driven from a power take off and has a brake band L for controlling the return movement of the arms. In a modification (not shown) the arms are operated by a hydraulic ram.