baber/WOPTO huggingface dataset:
Patent GB-290116-A (GB)
Title: Improvements in means for controlling flow and pressure of fluid in fluid distributing systems
IPC: G05D16/06
Filed: 1927-11-15
Abstract: 290,116. Drew-Bear, Perks, & Co., Ltd., and Brewer, A. J. Nov. 15, 1927. Pressure-actuating valves.-A diaphragm-actuated regulator has the diaphragm 3 connected to the valve member 7 by a compound lever mechanism, of which one lever 10 is adjustable whereas the other to which it is linked has a pivot adjustment. In the form shown in the Figure, the second lever 9 has pin and slot connections with the lever 10 and the valve member and is pivoted at 12 to a member 11 comprising a pair of plates having a pin and slot connection with a bracket 13<b>. The free end of the member 11 is pivoted to a non-rotating nut 15 adjustably mounted on a screw 16. Longitudinal movement of the screw is prevented by a screw 16a and a ball' catch 18 holds the head 17 in its adjusted position. Access is had to the head 17 by removing the cover plate 20, the screw may however be extended to pass through a stuffing box in the cover plate. In a modification the member 11 is connected by a link to the nut 15. The pivot for the lever 9 may be carried by a member reciprocated in guide ways by the adjusting screw. In a further modification the lever 9 is pinned to the lever 10 and valve member and has a pin and slot connection with the adjustable pivot.
Patent GB-484808-A (GB)
Title: Improvements in and relating to spark-producing toys
IPC: A63H17/045
Filed: 1936-11-10
Abstract: 484,808. Toys. EINFALT GES., GEB. Nov. 10, 1936, No. 30711. Convention date, Dec. 2, 1935. [Class 132 (iii)] [Also in Group XI] In a mechanically operated toy rifleman, armoured car, or the like, a disc-shaped shower of sparks is produced by the periodic rotation of a chisel-edged shaft o in contact with a flint w mounted in the apertured end of a barrel s carried by a flange r on the casing of the toy motor mechanism. The motor mechanism comprises a spring c operating through toothed gearing a shaft g carrying partially toothed wheels h, i. The wheel h rotates the shaft o by engagement with a pinion p and then releases it to allow of its being quickly returned by a spring x having one end attached to the flange r and the other wound closely around the shaft o. The wheel i causes an intermittent forward movement of the toy by engagement with a wheel k on the axle of the running wheels m. The rear of the toy may be supported by a sliding member n.
Patent GB-258307-A (GB)
Title: Apparatus for aiding audition
IPC: A61F11/00
Filed: 1924-12-23
Abstract: 258,307. Eldred, B. E. Dec. 23, 1924. Hearing-appliances. - Apparatus for assisting hearing comprises a vibratory member which is caused to oscillate, preferably by electrical means, so as to produce a sustained succession of air waves of appropriate amplitude and substantially inaudible frequency, the atmospheric condition thus created having a sensitizing effect upon the ear drum. Suitable apparatus for the generation of low-frequency waves compriss a conical diaphragm D a.round the tubular end of which is wound a light coil L<3>. This coil is located in the magnetic field between the poles I', I<2> of a magnet I, the magnet I having also an arm I<3> on which is wound a coil L<4>. Direct current is delivered to the coil L<4> through wires 20, 21 from a generator N, and alternating current is delivered to the coil L<3> through wires 22, 23. The diaphragm D being free to move in the direction of its axis, the arrangement is such that the coil L<3>, and therewith the diaphragm D, is oscillated in synchronism with the current. A baffle B prevents the circulation of air around the edges of the diaphragm. A modified apparatus is described in which, for the generation of highfrequency waves, oscillating current from a vacuum tube oscillator is delivered to the coil L<3>. The apparatus may be installed in theatres, churches, &c. to improve their acoustic properties or used for the treatment of individual cases of deafness.
Patent GB-645527-A (GB)
Title: Improvements in electric switches or contactors with delay action
IPC: H01H50/88
Filed: 1948-11-29
Abstract: 645,527. Electromagnetic switches. BRAY, Ltd., E. N., and HOPWOOD, E. E. Nov. 29, 1948, No. 30947. [Class 38(v)] A contactor is given a delayed make or break by means of a pinion k (or rack) carried by the armature and engaging a fixed rack k<SP>1</SP> (or pinion), the pinion k operating a coaxial lever n between the end of which and a part fixed relative to the rack is mounted an extendable and contractable mechanical escapement delay device s. This is of the kind in which an actuating bar t is retarded in one direction of movement but moves freely in the other. The contactor shown has a quick break and delayed make. On de-energization of the magnet j a spring h, assisted by gravity, rotates the armature a about its pivot b separating a contact e from the fixed contact e<SP>1</SP> and causing the rotation of the pinion k as it moves along the fixed rack k<SP>1</SP>. The lever n has a pin p engaging a slot q in the pinion to provide a lost-motion connection and is urged downwards by a coiled spring r so that as the pinion rotates, the lever n moves with it, the actuating bar t of the time-delay mechanism moving freely downwards till a pin y encounters an adjustable cam x. The bar t and lever n now remain stationary while the pinion rotates and takes up more or less of the lost motion between it and the lever. On energizing the magnet, the pinion rolls back along the rack, retaking up the lost motion, after which the lever n is carried along with it slowly under the retarding influence of the time delay mechanism. This continues till the contacts are nearly closed when the delay mechanism becomes disengaged and allows the contacts to close quickly. The time delay is adjustable by the cam x. In a modification, Figs. 6, 7 (not shown), affording a quick make and delayed break, the lever n is coupled to the pinion without any lost motion and the effective length of the actuating bar is adjustable by a cam device.
Patent GB-1047775-A (GB)
Title: Rotary feeder valve
IPC: A01C7/08
Filed: 1963-08-06
Abstract: 1,047,775. Pneumatic conveyers; rotary feeding valves. D. K. MANUFACTURING CO. Aug. 6, 1963, No. 31040/63. Heading B8A. In a rotary feeder valve, the radial vanes 46, Fig. 2, are cleaned by a wiper roller 56 of soft resilient material, such as rubber, arranged in the inlet 42 and covered by a shield 60 to prevent the mass of material from engaging the roller 56. The roller 56 is preferably driven in the same direction as the vanes 46 and at a higher speed through gears 72, 74, 76.
Patent GB-1364182-A (GB)
Title: Electroplating and hining apparatus
IPC: B23H5/06
Filed: 1972-07-03
Abstract: 1364182 Electro-plating and honing apparatus MICROMATIC INDUSTRIES Inc 3 July 1972 [16 Aug 1971] 31086/72 Heading C7B [Also in Division B3] Electro-plating and honing apparatus for treatment of a bore comprises means for supporting the workpiece, a combined plating and honing tool supported for selective reciprocation and rotation relative to the bore, and means for passing electrolyte through the bore under pressure via a closed circuit. As shown a workpiece  18 having bore 20 is supported by fixture 16, 16A, and the electrode tool is formed by a sleeve 30 about tool support 24 to which honing stones 26 are attached, to extend through slots 32 in the electrode sleeve 30 and contact the bore  surface. In operation the workpiece support 24 - sleeve tool 30 combination are rotated whilst the  tool support 24 is reciprocated relative to the sleeve 30 to provide reciprocation of the honing stones. Electrolyte is supplied under pressure by pump 68 via passage 74 to the bore 20 of the workpiece 18 and thence via passage 78 and conduit 80 back to reservoir 66; a small portion of the electrolyte flowing past the seals 86 and 88 to provide a liquid bearing between the seal 86 and the tool sleeve 30, and between the seal 88 and the tool support 24, thereafter returning to reservoir 66 via passages 87 and 99 and conduit 89.
Patent GB-779816-A (GB)
Title: Method of increasing the lubricating capacity of hydraulic fluids
IPC: C10M107/34
Filed: 1953-11-10
Abstract: The lubricating capacity of anhydrous hydraulic fluids consisting predominantly of polyhydric alcohols and/or ethers thereof, is increased by adding thereto phosphoric acid esters of di- and/or polyhydric alcohols and/or their ethers.  Polyhydric alcohols and ethers referred to are ethylene glycols such as di- and tri-ethylene glycols; and ethyl-, propyl- and butyl polyglycols, e.g. mixtures of the monoethyl or monobutyl ethers of diethylene and triethylene glycols, and ethylene glycol monoethyl ether.  Phosphoric acid esters referred to are esters of aliphatic polyoxy- or polyhydroxy compounds, e.g. ethylene or butylene glycol, polyethylene glycols and glycerine; esters specified are pentaethylene glycol secondary and tertiary phosphates, triethylene glycol tertiary phosphate, and a mixed ester of boric and phosphoric acids with a mixture of tetra- and pentaethylene glycols.  The phosphoric acid esters may be used together with boric acid esters, e.g. glycol triethanolamine borate, or salts of boric acid; mixed esters of phosphoric and boric acids may also be used.  The phosphoric acid ester may be adjusted to a pH of 7-9 by means of ammonia, or an organic base such as triethanolamine.  The oxygen in the esters of polyoxy- and polyhydroxy compounds may be replaced by sulphur.  0.5-5 per cent of the ester may be used.  Optional additives referred to are anhydrous solvents such as diacetone alcohol or low molecular weight alcohols; anti-corrosion agents e.g. soluble inorganic or organic compounds having a buffering action, such as alkali salts of boric acid, benzoic acid and phenyl-glycine, and mercapto-benzthiazole and its sodium salt; and vegetable oils such as castor oil.
Patent GB-265338-A (GB)
Title: Police signalling systems
IPC: G08B5/16
Filed: 1925-12-10
Abstract: 265,338. Beasley, G. Longfield-. Dec. 10, 1925. No Patent granted (Sealing fee not paid). Police alarm systems; two-position annunciators. -In a police signalling system 'of the kind in which a n electromagnetically operated visual signal is displayed upon a street post when a call is sent from the central station, the signalling apparatus comprises a cylindrical indicator 6 normally resting in a concealed position within metal and glass cylinders 3, 5. When a call is transmitted an electromagnet 12 is energized and the detent 8 is withdrawn to release the indicator by the armature 17 which engages, after lost motion, a wire 11 attached to the detent and serving as a stop to prevent the armature sticking to the poles of the electromagnet. The indicator 6 falls to bring its indicating portion behind windows in the casing 3. The apparatus is mounted on the top of a column containing a telephone apparatus and the cylinder 6 may be re-set by hand after operation by a rod which projects into the telephone box or automatically upon removal of the telephone instrument from its hook. The circuit of the electromagnet is opened upon operation of the indicator. The cylinder 6 may fall upon a pendulum lever, which is set in oscillation to raise and lower the indicator repeatedly. In a modification, the cylinder mav be caused to rotate upon withdrawal of the detent. The indicator is operated by alternating current, a blocking condenser being included in the circuit to prevent the passage of direct current. The Provisional Specification describes an arrangement wherein the indicator normally rests upon the armature, and a further modification wherein a pivoted detent for supporting the indicator is connected to the armature by a link which is slotted to provide for lost motion between the armature and detent.
Patent GB-505602-A (GB)
Title: Improvements in or relating to stereoscopic pictures
IPC: G02B27/22
Filed: 1937-11-15
Abstract: 505,602. Stereoscopic pictures. WOOD, L. L. , Nov. 15, 1937, No. 31338. [Classes 97 (i) and 98 (ii)] A stereoscopic picture comprises right and left eye views 10, 11, Fig. 1, of an object mounted side by side, one view being laterally inverted. The picture is viewed by both eyes, before one of which is placed a device such as a prism 13 for effecting lateral inversion, so that the two views may be caused to appear in superposition with stereoscopic effect. The picture may be produced by a camera having a single lens 26, Fig. 2 and provided with a fitting 20 attached to the lens mount, the fitting having two light-entrance apertures and having in one light path a pair of reflecting prisms 23, 24 and in the other light path a reversing prism 25, so that two relatively-reversed images are formed side by side on the plate 27. Alternatively a normal stereoscopic camera may be used with a reversing prism &c. in front of one of the lenses. The invention can be applied to kinematography by producing pairs of views as above on the film and providing each observer with a reversing prism &c. to be placed in front of one eye. Figs. 3 and 4 show the production of an alternative form of picture in which two relatively-reversed prints 30, 31 are first obtained and then the parts B, B<1> are removed and the parts A, A<1> are fitted together to form a composite picture.
Patent GB-187486-A (GB)
Title: Improvements in coupon or card feeding device
IPC: B65H3/22
Filed: 1921-11-23
Abstract: 187,486. Thornton, A. A., (Comas Cigarette Machine Co.). Nov. 23, 1921. Sheet separators and carriers.-Cards or coupons are fed from the bottom of a magazine 1 by means of a reciprocating rocking-head formed of two parts 2, 3 connected together by screws and fitted with a series of needles 4 which engage the bottom card of the pile and feed it into positively driven rollers 5, 7. The rocking-head is reciprocated by a crank-disc 9 on the shaft of roller 7, and the connecting-rod 22 is connected eccentrically to the shaft 19 which connects the rocking-head to a slide 26 which moves in guides in the frame of the machine. A spring 28 with a rubber block 29 engages the slide 26 and restrains it from movement while the rocking-head is moving about its pivot. The needles 4 are moved to sheet-engaging position as the crank-pin 20 moves from the position shown in Fig. 7 to that shown in Fig. 6. The rotary movement of the rocking-head is limited bv the engagement of a projection 27 with the slide 26, and this prevents the needles from penetrating too far into the bottom card. The slide 26 carries the bottom sheet into the bite of the rollers 5, 7, and the rocking-head is then moved to the position shown in Fig. 7 to free the card from the pins 4. The rollers 5, 7 are of equal size and are geared together by pinions having teeth differing in number by one or two so that the peripheral speeds of the rollers are not exactly the same, and the resulting slipping movement keeps the rollers free from dirt. Should the needles 4 fail to feed a sheet, a shoulder 30 is adapted to engage the rear end of the bottom card, and push it forward. Should two sheets be fed, the top sheet is returned by a positively driven roller 15 coacting with an idler roller 16 the roller 15 being set so as normally to have no action on a single sheet passing between the rollers 15, 16. The roller 15 is geared to and rotates reversely to the roller 5.
Patent GB-425824-A (GB)
Title: Improvements in means for guiding sliding seats
IPC: B60N2/07
Filed: 1934-11-02
Abstract: 425,824. Sliding seats. SLEIGH, H. L., and CHESTON, A. S., Widney Works, Bagot Street, Birmingham. Nov. 2, 1934, No. 31453. Addition to 420,624. [Class 52 (ii)] Resilient bodies in compression, such as coil or leaf springs or pieces of solid or tubular rubber 8, are placed between vertically spaced overhanging flanges 5, 7 on the co-operating guide rails of a sliding seat.
Patent GB-632173-A (GB)
Title: Improvements in foldable spectacles
IPC: G02C5/14
Filed: 1946-10-23
Abstract: 632,173. Spectacles. VIGANO, G. Oct. 23, 1946, No..31525. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 23, 1946.] [Class 97 (i)] A pair of folding spectacles have temples formed of two portions 15, 8 of unequal lengths and of which the shorter portions 15 are hinged at 11 to the spectacle rims 1, 2. The longer portions 8 are attached to the shorter portions 15 by pivot pins 12 extending axially of the temples. In addition, a spring 17 is provided for preventing accidental relative relation of the two portions of each temple and each of the shorter portions 15 is provided with a wedgeshaped surface 14 which is engaged with a wedge-shaped surface 13 of the longer portion 8. The Specification as open to inspection under Sect. 91 also describes a pair of folding spectacles wherein the two lens rims are joined by a bridge pin which includes a device similar to that securing the two portions 15, 8 of a temple so that the rims may be relatively rotated through 180 degrees and also includes a hinge so that the two rims may be superposed one on the other. This subject-matter does not appear in the Specification as accepted.
Patent GB-149175-A (GB)
Title: Improvements in means for controlling the rotary speed of a davit or a crane
IPC: B63B23/18
Filed: 1919-12-16
Abstract: 149,175. Schat, A. P. Dec. 6, 1919. Jib cranes.-The rotary cr sluing motion of a davit or crane is controlled by a brake- 3 actuated by the fall or hoisting rope 14 through a sheave 13, rope 10, and levers 8, 5. Thus whenever there is a load on the fall, thedavit is prevented from rotating until the brake is released bv a hand-lever 17 connected to thebrake-lever 8. When there is no load on the fall, the davit can be held against sluing by means of the hand-lever and the brake.
Patent GB-1005349-A (GB)
Title: Dynamic braking apparatus for an induction motor
IPC: H02P3/22
Filed: 1963-08-09
Abstract: 1,005,349. Control of A.C. motors. K. OZAKI. Aug. 9, 1963 [April 18, 1963], No. 31557/63. Heading H2J. Actuation of push-button 8 energizes relay M1 whereby induction motor 1 is energized to drive a door to a closed position. Stator windings 2, 3, which are accommodated in the same slots, are connected in parallel, the motor operating at full speed. As the door approaches its limiting position, switch A is actuated to energize relay M3 to disconnect the stator winding 3 from the A.C. source. Current induced in the winding 3 from the winding 2 is rectified by rectifiers 4, associated with resistor 5, to provide dynamic braking action. A similar arrangement may be used for three-phase motors, having two phases of the stator windings duplicated.
Patent GB-211236-A (GB)
Title: Improvements in ships' davits
IPC: B63B23/18
Filed: 1922-11-18
Abstract: 211,236. Welin Davit & Engineering Co., Ltd., and Davis, A. W. Nov. 18, 1922. Davits. - Davit arms are cast in one piece of a section mainly circular but having longitudinal grooves B.
Patent GB-779019-A (GB)
Title: Improvements in or relating to carrier-wave transmission systems for television signals
IPC: H04N7/08
Filed: 1954-11-02
Abstract: 779,019. Multiplex radio signalling. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. Nov. 2. 1954 [Nov. 5, 1953], No. 31666/54. Class 40(5) In a television system two video signals # 1 , # 2  corrected to avoid cross - modulation as in Specification 776,989 modulate respectively the positive and negative half cycles of a subcarrier in turn modulating a main carrier, so that to zero values of the subcarrier there corresponds a predetermined amplitude γ of the main carrier greater than the maximum amplitude A\ of the negative half cycles of the subcarrier. To this end # 1 , # 2  after correction may be separately multiplied by (1 + 2 cos w 0 t) and (1 - 2 cos w 0 t) where w 0  is the angular frequency of the subcarrier, then the outputs filtered to lie within a frequency band with upper angular frequency w 0 , i.e. the filtered products are then respectively # 1  + # 1  (transposed to the subcarrier frequency) and # 2  - # 2  (transposed to the subcarrier frequency). The difference of the two filtered products is then taken and is therefore such that during alternate half cycles of the subcarrier frequency the maximum amplitudes of the subcarrier are # 1  and # 2  respectively so that detecting alternate peaks of the subcarrier give # 1  and # 2 . This composite subcarrier signal (difference of the above filtered products) then modulates the main carrier to a depth subject to the aforesaid restriction (to avoid distortion due to over-modulation). Pulses of amplitude Œγ in synchronism with the. line or frame sync pulses A 9  of the two video signals, or one of them may be inserted in the composite subcarrier during instants of zero amplitude by diode or other circuits to fix the modulation level of the subcarrier but are preferably removed during modulation of the main carrier. The lower level modulation # 2 , (Fig. 2a) of the main carrier may be displayed on a cathode ray tube and the modulation depth thereby corrected manually or automatically by a, photo-electric cell coacting with an apertured mask on the screen. At the receiver the upper level # 1  and lower # 2  (Fig. 2a) modulation are separated by threshold diode circuits reversely connected in parallel.
Patent GB-211559-A (GB)
Title: Improvements in or relating to leggings, gaiters and the like
IPC: A41D17/02
Filed: 1922-11-20
Abstract: 211,559. Mills Equipment Co., Ltd., and Lethern, A. A. Nov. 20, 1922. Leggings and gaiters.-Relates to leggings and gaiters of the fold-over type in which a strap F is passed round the ankle in an opposite direction to that in which the overlapping part A is passed round the leg and in which the strap is passed through a slot D to engage a slide or buckle, E. An ankle band C is secured across the bottom of the leg portion. Preferably, the edge A<1> of the overlapping part A is inclined in the direction shown to prevent the entry of water, the lower end of the inclined edge being over the shin bone. The leg portion may be made of two pieces A, B of woven fabric stitched together and preferably taped. A spat portion may be added to the legging.
Patent GB-1410492-A (GB)
Title: High pressure optical cell
IPC: G01N21/03
Filed: 1972-07-06
Abstract: 1410492 Sample holders for optical examination BECKMAN-RIIC Ltd 6 July 1973 [6 July 1972] 31723/72 Heading J High-pressure optical cell comprises a first fixed anvil 1, a second anvil 2 movable normally to the face of the first anvil, the anvils formed of hard material and each or either being transparent, and lever means 21, Fig. 1 for pressing the anvil faces together normally. The anvils e.g. lapped diamonds are mounted in adjustable carriers 3, 12 with passages 11, 25 for a spectrophotometer beam within an insert 4 in a body 5, Fig. 2, the carrier 12 having a spherical bearing 14 in a P.T.F.E. seat 15 fitted in a pressure plate 16 of a saddle 17, 18 carrying bearings 19 for the hooked ends 20 of the pair of levers 21 pivoted to body 5 at 22. In operation the lower carrier 12 is removed, a sample within a foil washer 23 inserted to engage the inner walls of insert 4, carrier 12 replaced and a load, e.g. hydraulic, applied to the lever arms whereby insert 12 is moved upwards in insert 12 to apply pressure on the sample between the anvils. If the sample is opaque, reflected light is used for the examination.