baber/WOPTO huggingface dataset:
Patent GB-211722-A (GB)
Title: Improvements in or relating to mountings or attachments for telephone receivers
IPC: H04R1/10
Filed: 1923-03-15
Abstract: 211,722. Brookes, H. J. March 15, 1923. Head sets.-Receivers of the type clipped over the head of the operator are carried by the extremity of a flexible clip member a, and are adapted for vertical or longtudinal adjustment by a simple frictional sliding movement controlled by spring pressure applied by means of a blade spring f mounted on the clip member a and abutting against the frictional sliding member c. The blade spring f may be grooved as at f<3> to maintain the sliding member c in parallel relation or, in a modification, Fig. 4, a socket f<4> may serve the same purpose and the bearing sleeve d may be bored obliquely to provide a bearing d<2> adapted to form a half lock. A suction grip device g may be provided as described in Specification 213,519. The earpieces can also be adjusted about the pins c<1> and by rotating the rod c in its sleeve d<1>.
Patent GB-512639-A (GB)
Title: Appliance for fixing wood-work to brick, cement, or like walls
IPC: E06B1/60
Filed: 1938-03-10
Abstract: 512,639. Spiked plates. CHILCOTT, S. March 10, 1938, No. 7453. [Class 89 (ii)] A device for use in fixing woodwork 7, e.g., door or window frames to brick, cement or like walls 6 comprises a metal plate 1 which is cemented and keyed in the wall and is provided with spikes 2 extending from one edge of the plate and substantially in the same plane thereof adapted to be driven into an abutting woodwork. The plate 1, which is of galvanised or non- corrosive steel, is segmental in shape :and has a deep central corrugation 5 and shallow corrugations 4 at the sides thereof, the latter forming keys for the cement. In a cavity wall the corrugation 5 spans the cavity 9.
Patent GB-594242-A (GB)
Title: Reservoir construction for hydraulic apparatus
IPC: F15B1/10
Filed: 1945-03-24
Abstract: 594,242. Reciprocating pumps syringes. PAGE, H. E. March 24,1945, No. 7480. Convention date, March 25, 1944. [Classes 102 (i) and 102 (ii)] A reservoir R for hydraulic fluid is provided with a collapsable air-tight wall 50, one face of which is in contact with the fluid and seals it from exposure to the air and the other face is exposed to the atmosphere so that on withdrawal of fluid from the reservoir, the flexible wall will automatically reduce the volume thereof. A valve assembly 34 permits fluid to flow to an inlet valve 30 on the suction stroke of the pumping piston 11 and past the ball valve 33 into cylinder 8 on the pressure stroke. A release mechanism is provided in the screw 48 which unseats both ball and poppet valves allowing fluid to pass in the reverse direction back to the reservoir. In a modification, the reservoir may consist of a flexible bag having a membrane which is pierced by the pointed end of the connecting tube as it is screwed into position.
Patent GB-540027-A (GB)
Title: Improvements in and relating to rock boring and like tools
IPC: E21B10/32
Filed: 1940-04-26
Abstract: 540,027. Drills and cutters. COX, P. April 26, 1940, No. 7551. [Class 83 (iii)] In a counterboring tool, particularly for enlarging the inner ends of shot holes previously drilled in rock or the like for accommodating explosive charges, of the kind comprising a slotted body which is introduced into the hole and rotated therein and contains pivoted cutters mounted side by side and fed laterally into concounterboring poition by actuating means having thrust engagement with the bottom of the hole, guide abutment means are provided which contact along a lower portion of the side of each cutter to afford support against lateral thrust on the cutters when in the extended position in counterboring position by actuating means be attached at 2 to the means for rotating the tool, is provided with slots to receive an opposite pair of flat cutters 6, which are mounted in a pivot and have a curved portion and a straight portion accommodating tapered diamond mountings. The cutters are provided with oppositely inclined slots comprising curved portions 10 and straight portions 11 engaged by a common actuating pin 13 on a spring-controlled rod 17, which adjusts the cutters outwardly when the removable centre piece 18 on the rod is pressed against the bottom of the shot hole. The outward movement is limited by a pin 8 engaging a recess 7 in the cutter. Members 9 welded in position to occupy half the width of the slots in the body take lateral thrust on the cutters. Centre pieces 17 of different lengths may be used to vary the position of the counterbore, while the length of the counterbore is determined by the length of the straight part 11 of the cutter slot. In another form, Fig. 7, the removable centre 26 is secured in the tubular body 25, the outward movement of the cutter 28 being effected by a pair of toothed racks 34 carried by a spring-controlled member 32 moved relatively to the body and attached to the drill rotating means. The cutters are mounted in separate pivots 30 and are provided with, toothed sectors 29 engaging the racks. The racks occupy one half of the cutter slots and lie alongside the cutters to take lateral thrust. Shoulders on the racks engage the ends of arms 42 on a stop member 41 secured to the body when the cutters are in their withdrawn position. The outward position of the cutters is limited by the member 32 engaging the shoulder 35. on the body. The tools have vertical bores which extend into the cutter slots for the supply of washing liquid.
Patent GB-1031958-A (GB)
Title: Improvements in or relating to d.c. voltage transformer apparatus
IPC: H02M3/338
Filed: 1965-02-22
Abstract: 1,031,958. Automatic voltage control. TELEFUNKEN PATENTVERWERTUNGSGESELL SCHAFT. Feb.22,1965 [Feb. 25,1964], No. 7638/65. Heading G3R. [Also in Division H2] A load 6 is supplied from a D.C. source 1 by way of a chopper 2, a transformer 3, a frequency dependent impedance such as an inductor 4, and a rectifier 5. The chopper frequency is controlled in dependence upon output voltage variations by a feedback circuit including a comparator 7, a reference source 8, and an amplifier 9 for the error sigsignal. The arrangement is such that the voltage across the frequency impedance 4 varies as the chopper frequency varies whereby the input voltage to the rectifier 5 is automatically controlled in a sense to maintain the output voltage contact. Thus, if the impedance 4 is inductive as shown, the control signal is such that the chopper frequency increases with increase in output voltage; conversely if the impedance 4 is capacitive, then the chopper frequency is arranged to decrease with increase in output voltage. The frequency dependent impedance may comprise an inductor or capacitor connected in parallel with the rectifier 5 (Fig. 2, not shown). Suitable transistor circuit arrangement for the chopper 2, the amplifier 9 and the comparator 7, which also includes Zener diodes in a bridge circuit, are described with reference to (Fig. 3 not shown).
Patent GB-114408-A (GB)
Title: Torpedo System.
Inventor: DUFFIE JOHN JEFFERSON
IPC: F41G7/00
Filed: 1917-05-29
Abstract: 114,408. Duffie, J. J. March 29, 1917, [Convention date]. Mines, marine. - Relates to submerged tracks carrying locomotive torpedoes, which are released when the track is encountered by a ship, and run along the track towards the ship. According to the invention, the propeller shaft of the torpedo has a rearward extension which is engaged by an arm on the track until the track is pulled by a passing ship. In the form shown in Figs. 1 and 2, a spring 12 interposed in the track 2 yields to this pull, causing the torpedo 9 to be swung by a lever 16 away from the arm or socket 14 which held the propeller shaft against rotation; the torpedo then propels itself along the track. The track is carried by vertical stems 5 from floats 3; one end of the track is fixed to a stem 5 and the other end is balanced by a weight 7; several parallel tracks may be arranged at various heights, and some torpedoes may be arranged above and others below the track. In a modification, the torpedoes are started electrically.
Patent GB-461101-A (GB)
Title: Improvements in and relating to insulated electric conductors
IPC: H01B3/18
Filed: 1936-03-14
Abstract: An electric conductor is insulated by means of inner and outer layers of plasticized polyvinyl halide between which layers is an intermediate layer of another organic and/or inorganic insulating material.  The plasticizer may be tricresyl phosphate, diphenyl, diphenyl oxide or dibutyl phthalate.  Fillers such as zinc oxide, iron oxide, silica, infusorial earth, magnesium carbonate, magnesium oxide, carbon black, zinc stearate, polyvinyl acetate and polyvinyl chloride-polyvinyl acetate resins, inhibitors such as phenyl alpha naphthylamine, phenyl beta naphthylamine or monoamylamine, dyes, pigments and colouring agents may also be added to the plasticized polyvinyl halide.ALSO:Polyvinyl halide, a plasticizer and a filler are milled between differential rolls which may or may not be heated. The material is sheeted off and fed in sheet form to an extrusion machine for application to an electric conductor.
Patent GB-609398-A (GB)
Title: Electrical measuring instrument for measuring the radial clearance of ball bearings
Filed: 1946-03-13
Abstract: 609,398. Linear-dimension gauges. JACK & HEINTZ, Inc. March 13, 1946, No. 7800. Convention date, Sept. 11, 1945. [Class 106 (ii)] An electrical measuring instrument for measuring the radial clearance of ball-bearings within the inner and outer race of a bearing assembly comprises a shaft 2 with a lower bevelled portion 4. Surrounding the shaft is a hollow collet, provided with vertical slots 6 forming tongues 7. Surrounding the collet is a member 8 rigid with the base 1 with equal-sized slots 10, each to receive a separate ball 13. The inner race 11 of the assembly lies between the collet tongues 7 and the ball separator 8, and the outer race 12 surrounds the lower portion of the separator 8. The tongues 7 are pressed downwardly over the levelled portion 4 of the shank to keep the inner race 11 in position by means of a pneumatically controlled rod 14. Pneumatic cylinders 33, 36 with pressure members 39, 40 are alternately applied on opposite sides of the outer race 12. A stylus 28 pivotally mounted at 29 is in contact with the outer race and any displacement will cause it to alter the position of the armature 27 of an electrical pick-up device, such as described in Specification 601,053, causing unbalance in the electric circuits.
Patent GB-385263-A (GB)
Title: Method and machine for the manufacture of fancy yarns
IPC: D01H5/36
Filed: 1931-03-13
Abstract: 385,263. Fancy yarns. FEITZ, Y. J. M., c/o. De Frisia Wolspinnerij Naamlooze Vennootschap, Veenendaal, Holland. March 13, 1931, No. 7811. Convention date, Feb. 23, 1931. Void [Published under Sect. 91 of the Acts]. [Classes 120 (ii) and 120 (iii).] Fancy yarns comprise " flocks " of roving 52, Fig. 8, and binding-yarns 9 and may be doubled to produce a yarn as shown in Fig. 6, the flocks and yarns being of any desired and different colour. Rovings 12, 22, 32, Fig. 2, are intermittently fed by rollers 11, 21, 31 to continuously rotating plucking or flocking rollers 40, 41, and are twisted with binding- yarns 9 by a twisting-device such as a flyer 50 arranged at right-angles to the plane of the rollers 40, 41 so that the twist runs up to the nip. Pins constituting converging guides for the rovings are arranged between the feeding-rollers and guide rollers 6, 8, and wire guides 92, Fig. 5, are provided to maintain the relationship of the binding-yarns and the rovings. The guide rollers 6, 8 are provided with rubber rings 61, 81 so as to be frictionally driven by the co-operating lower rollers. The feeding-rollers are driven through mutilated gearing from gears 43, 44, 45 on the shaft of the lower plucking roller, and check wheels and pawls, such as 28, 29, are included in the train to maintain precision in the periodical arrest of the drive.
Patent GB-578166-A (GB)
Title: Improved electric cautery instrument for use in nasal surgery
IPC: A61B18/08
Filed: 1944-04-27
Abstract: 578,166. Electric cautery instruments for nasal surgery. LEW, P. W. April 27, 1944, No. 7858. [Class 39 (iii)] A cautery instrument for nasal surgery has a water cooling circulation system on one side of an electric resistance wire 2 forming the cautery element for protection of other parts of the nose. The U-shaped cautery wire 2 is soldered to insulated wires 3, 4 attached by ferrules 6 to a junction box 8 with a handle with current supply leads 7. Adjacent the cautery wire 2 and insulated therefrom by a thin layer 22 of mica is a flat thin copper box 19 through which water is circulated by inlet and return tubes 16, 17 communicating with passages in the block 8 connected by nipples 24 to rubber tubes 27 for water supply. The cautery element may comprise a straight resistance wire welded to the cooling box 19 which forms with one or both tubes 16, 17 a return path for the current. Water may be fed in by a pump, and the end of the water outlet pipe may be anchored by a weight on the bottom of a tank.
Patent GB-694902-A (GB)
Title: Improvements in and relating to reflector fittings for electric lamps
IPC: F21V17/12
Filed: 1951-04-06
Abstract: 694,902. Bayonet joints. WARDLE ENGINEERING CO., Ltd., and OGLEY, D. H. April 3, 1952 [April 6, 1951], ], No. 7994/51. Class 44 [Also in Group XI] The top of an electric lamp reflector is formed with radial suspender lugs 20 which are passed upwardly through slots 16 in a spider 10 attached to a canopy 15 and are held down in recesses 17 in an upward flange 12 at the edge of the spider by leaf springs 18 riveted to the canopy or by sets screws threaded through the canopy to abut the lugs or by studs rotatably mounted in the canopy and carrying cams which engage the lugs or by studs freely mounted in holes in the canopy and pressed downwardly by springs. One form of freely-mounted stud has a transverse pin which passes through a slot in the canopy so that by withdrawing the stud and turning it the pin abuts the canopy to retain the stud in released position. In another form the stud has a portion of rectangular section and the hole in the canopy is also rectangular whereby withdrawing and turning the stud retains it in released position. Specification 564,951, [Group XI], is referred to.
Patent GB-348765-A (GB)
Title: Improvements relating to junction boxes for electric conduits
IPC: H02G3/06
Filed: 1930-03-12
Abstract: 348,765. Junction - boxes. DEAN, H. J., 44, Nottingham Street, Rotherham, Yorkshire. March 12, 1930, No. 8001. [Class 38 (i).] A junction box A for electric conduits has two or more inlets D, E, shown as screwed, arranged in the back of the box, the axes of the inlets being inclined to one another as by mounting them on conical or cylindrical surface.
Patent GB-128529-A (GB)
Title: A Device for Guiding the Flow of Latex, Gum, Resin, or other Vegetable Liquid into a Collecting Receptacle.
Inventor: THORNHILL WILLIAM JOHNSON
IPC: A01G23/14
Filed: 1919-03-31
Abstract: 128,529. Thornhill, W. J. March 31, 1919. Latex collecting. - A spout for guiding the flow of latex, gum, resin, or the like into a collecting receptacle comprises a pin A with upturned end C, which passes through two slots E, E<1> in a bent trough D.
Patent GB-1474391-A (GB)
Title: Air cushion vehicles
IPC: B60V1/16
Filed: 1974-02-21
Abstract: 1474391 Air cushion vehicle skirts BRITISH HOVERCRAFT CORP Ltd 18 Feb 1975 [21 Feb 1974] 8039/74 Heading B7K A flexible skirt on an air cushion vehicle comprises an upper flexible bag skirt 12 which is enclosed within a reticulated member 18 secured at 15 and 16 to vehicle structure, with a layer of buffer material 19 interposed between the bag and the reticulated member, which member has a lower elasticity than the material forming the skirt whereby excessive loads imposed on the bag e.g. by temporarily contained water are carried by members 18. The skirt is extended by fingers 13 and the member 18 may be formed from metallic wires, high strength polyamide or high strength fibrous material.
Patent GB-453705-A (GB)
Title: An improved paraboloidal reflector
IPC: F04B37/16
Filed: 1935-03-15
Abstract: 453,705. Lamp reflectors. NIER, R., Beierfeld, Erzgeb, Germany. March 15, 1935, No. 8114. Convention date, Feb. 25. [Class 75 (ii)] The inner surface of a paraboloidal reflector for light projectors, with the exception of the upper quadrant I through the centre of which the vertical axial plane GH of the reflector passes, is provided withdepressions or projections e<3> ... e' to reflect light from the light source transversely to the axis of the reflector. The depressions or projections in the side quadrants II, III may be arranged at random; and those in the lower quadrant IV in concentric arcs. The depressions or projections may be spherical segments, or shaped as shown in Fig. 4, with plane bases or heads f and short walls. The bases or heads f may be arranged at angles alpha, # to the tangential planes 1, 1 of the reflector. Corresponding arrangements of the depressions or projections when they are spherical segments are described.
Patent GB-160172-A (GB)
IPC: C01D7/18
Filed: 1921-03-15
Abstract: In a modified ammonia soda process in which sodium bi-carbonate and ammonium chloride are precipitated alternately, the process is so conducted that normal ammonium carbonate is always present. The residual liquor after removal of the sodium bi-carbonate is cooled to 15-18 DEG  C., or if artificial cooling is available, to 5-10 DEG C., in order to precipitate ammonium chloride, and sodium chloride and ammonia are added equivalent in quantity to the sodium bicarbonate to be produced.  The liquor is then carbonated in an apparatus provided with stirring and cooling means, but the passage of carbon dioxide is stopped as soon as the added ammonia and sodium chloride have reacted, so that the normal ammonium carbonate present remains unattacked.  Although the salt must be dissolved before passing the carbon dioxide, some may advantageously be added during the carbonation.  For the latter process, preferably pure carbon dioxide under pressure is employed.  In a modification, a solution of ammonium bicarbonate, prepared from wash water by means of ammonia and carbon dioxide, may be added to the mother-liquor containing ammonium carbonate, instead of passing the ammonia and carbon dioxide successively. Specification 131,870 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) states that ammonia may be added to the mother-liquor after carbonation to convert any bicarbonate to the normal carbonate. This subject-matter does not appear in the Specification as accepted.
Patent GB-671469-A (GB)
Title: Amplitude modulation of magnetron
IPC: H03C1/30
Filed: 1949-03-25
Abstract: 671,469. Magnetrons. STANDARD TELEPHONES & CABLES, Ltd. March 25, 1949 [April 14, 1948], No. 8157/49. Class 39 (i). [Also in Group XL (c)] A cavity magnetron adapted for amplitude modulation comprises a cylindrical conducting envelope, a central cathode, and an even number of anode segments radially disposed about the cathode, each segment being connected to one or other of two groups of alternate segments, one group being connected directly to the outer cylindrical envelope wall, the other being reactivelycoupled thereto for high-frequency purposes and insulated therefrom at modulation frequencies, modulation signals being applied between the two groups of segments. Fig. 1 shows an interdigitated segment type of magnetron wherein the upper segments 4 are connected to the endplate 11 which is connected to the cylindrical wall and the lower segments are connected to an end-plate 12 insulated from the cylindrical wall by an insulating ring 13. The envelope includes magnetic pole-pieces 6, 7 insulated from the envelope by insulating rings 14, 15 and energized by a coil 5. Fig. 2 shows a cross-section of a multi-cavity magnetron wherein alternate segments 22 are insulated from the cylindrical envelope by pieces of mica or other insulation 25. Alternate segments are connected to straps 24 in known manner.
Patent GB-255819-A (GB)
Title: Improvements in or relating to adsorption apparatus
IPC: B01D53/04
Filed: 1926-03-29
Abstract: 255,819. Silira Gel Corporation, (Assignees of Krull, F. B.). July 27, 1925, [Convention date]. Purifiers.-Absorption apparatus, for use in separating one constituent from a gaseous mixture, is provided with rotary plate valves for controlling the entry and exit of the material to be treated and of the reactivating agent for the absorption medium. A casing a is divided by radial partitions into non-communicating sections containing the absorption medium on trays. Two rotary valves are mounted on a common spindle and rotated by a worm gearing with teeth on the periphery of the lower valve. The valves are each divided into two concentric rigidly connected portions b, g and b<1>, g<1>. The outer portions b, b<1> have concentric slots e, e<1> connecting a number of the sections with the entry and exit conduits d, d<1> for the material to be treated, while concentric ports f, f<1> in inner portions g, g<1> of the valves connect one of the remaining sections with the entry. and exit conduits c, c<1> for the steam or other fluid used for reactivating the absorption medium; the entry and exit conduits respectively are concentric. By rotation of the valves, sections in which the medium has been reactivated are again brought into operation, while those which have been in use are subjected to reactivation. The Specification as open to inspection under Sect. 91 (3) (a) comprises also separate rotation of the valves and loose connection between their concentric portions. This subject-matter does appear in the Specification as accepted.
Patent GB-868448-A (GB)
Title: Improvements relating to hydrogen filled electric discharge tubes
IPC: H01J17/26
Filed: 1960-03-10
Abstract: 868,448. Thermionic valves. COMPAGNIE FRANCAISE THOMSON-HOUSTON. March 10, 1960 [March 13, 1959], No. 8507/60. Class 39(1). A hydrogen-filled discharge tube comprises two hydrogen reservoirs 25, 26, one being arranged to be heated simultaneously with the heating of the cathode 5 and the other being arranged in thermal contact with the anode 4. As shown, reservoir 25 comprises a nickel tube filled with titanium or zirconium hydride and surrounded by an aluminia-coated heating element 29 and a thermal screen 30. The heating element 29 is connected between terminal 31 and thermal screen 30 which is connected to one of the cathode heater terminals. The reservoir 26 may comprise a circular groove in the anode filled with a metal hydride and covered with molybdenum foil 33 spotwelded to the anode. Alternatively, the reservoir 26 may comprise a metal hydride contained in an annular compartment within the anode which is formed by two external discs welded to a central disc and spotwelded to a ring, the internal diameter of which is greater than the diameter of the central disc so as to provide the compartment. Also, reservoir 25 may be in thermal contact with the cathode.