baber/WOPTO huggingface dataset:
Patent GB-923772-A (GB)
Title: Process for the production of hardenable synthetic epoxy-resins
IPC: C08G59/24
Filed: 1960-04-14
Abstract: Polyepoxypolyethers are prepared by first reacting a hydroxymethylphenol having a single phenolic hydroxyl group with more than 3 moles of an epihalohydrin per mole of alcoholic or phenolic hydroxyl group to give a halohydrin and secondly reacting the halohydrin with an alkaline agent to give the polyepoxypolyether. The first stage may be carried out in the presence of up to 2% of water or in the presence of boron trifluoride.  The alkaline agent in the second stage may be added in aqueous solution or in solid form. The hydroxymethylphenols may contain alkyl, alkoxy or halogen substituents and those specified are o-hydroxybenzyl alcohol, p-hydroxybenzyl alcohol and vanillyl alcohol.  The epihalohydrin specified is epichlorohydrin. The alkaline agent specified is sodium hydroxide.  The products may be cured by conventional curing catalysts, e.g. triethylene tetramine and phthalic anhydride and are soluble in acetone and methylene chloride.  The polyepoxides may be cast, used as surface coatings, metal glues and as insulation.ALSO:Polyepoxypolyethers are prepared by first reacting a hydroxymethylphenol having a single phenolic hydroxyl group with more than 3 moles of an epihalohydrin per mole of alcoholic or phenolic hydroxyl group to give a halohydrin and secondly reacting the halohydrin with an alkaline agent to give a polyepoxypolyether.  The first stage may be carried out in the presence of BF3 or of up to 2% of water.  The alkaline agent in the second stage may be added in aqueous solution or in solid form.  The hydroxymethylphenol may contain alkyl, alkoxy or halogen substituents and those specified are o-hydroxybenzyl alcohol, p-hydroxybenzyl alcohol and vanillyl alcohol.  The epihalohydrin specified is epichlorhydrin and the alkaline agent specified is sodium hydroxide.
Patent GB-1024549-A (GB)
Title: Ventilators for windows
IPC: F24F7/00
Filed: 1964-04-01
Abstract: 1,024,549. Ventilators. GREENWOOD AIRVAC VENTILATION Ltd., and B. D. HUGHES. March 1, 1965 [April 1, 1964], Nos. 13446/64 and 13448/64. Heading F4V. An elongated ventilator of box form for fitting between a glazing panel and its frame has upwardly and downwardly extending flanges for attachment to the frame and panel, there being ventilation openings in opposite sides of the ventilator such that those on the exterior of the panel are located at a lower level than those on the interior. A pivoted air flow control flap may be included in the ventilator.
Patent GB-134894-A (GB)
IPC: C01B31/04
Abstract: 134,894. Ridoni, E., and Soc. Talcoe Grafiti Val Chisone. Nov. 8, 1918. Leads.-Graphites to be used in the. manufacture of pencils are purified by means of hydrofluoric acid; but the silica is not completely removed, the part that remains being converted during the process of purification, into the gelatinous form so that it will act as an agglomerating agent in subsequent operations.
Patent GB-1105473-A (GB)
Title: Control of peripheral devices of computer
Inventor: NICHOLSON ALBERT WATSON
IPC: G06F13/22
Filed: 1964-04-01
Abstract: 1,105,473. Computer control circuits. ENGLISH ELECTRIC COMPUTERS Ltd. 1 April, 1965 [1 April, 1964], No. 13490/64. Heading G4A. In a control device associated with a central computer which has access to a plurality of peripheral devices (e.g. magnetic tape stores), time delay is provided by placing a number in a register 20, Fig. 2, and then adding pulses from a counter 17 until the register 20 records a predetermined number, whereon an output is produced. The input signal also activates a selected magnetic tape store which, after the time delay, is ready to receive data. A store 15 in the control unit is divided into sections corresponding to the peripheral devices, each section containing the initial and final addresses in the computer data store from which data is to be transferred and the first number initiating the time delay. The initial and final addresses are placed in registers 22, 21 respectively during the delay time interval whereafter the initial address is transferred to the register 20 and the characters of each word are counted in register 24 which increments the stored addresses in register 20 after a complete word (48 characters) has been transmitted. The address in register 20 is compared at 18 with the final address in register 21 and transmission ends when these are equal. A gap detector 26 comprises a bi-stable device which tests each data position of the tape store and is set by the presence of data and reset by the counter 17, a gap being detected when the device remains in the reset state. Each character is placed in a common buffer 9 (Fig. 1, not shown) and then a buffer 7 associated with a peripheral device 6 before transfer to the unit 6.
Patent GB-864767-A (GB)
Title: Improvements in rotary engines
IPC: F01B1/06
Filed: 1959-04-21
Abstract: 864,767. Liquid-pressure engines. WADEFELT, C. I. April 21, 1959, No. 13522/59. Class 69 (2). [Also in Group XXVII] A liquid-pressure engine comprises a housing 2 having a number of radial cylinders 3 provided with pistons 4 carrying rollers 10a, 10b engaging cam rings 6a, 6b, rotatable relative to the housing, and guide rollers 11a, 11b which are mounted on axle pins 9a, 9b at the tops of the piston and co-operate with guide planes 15<SP>1</SP>a, 15<SP>1</SP>b parallel to the axes of the pistons and the motor axis. The cylinders 3 are supplied with fluid pressure from a rotary valve 16 driven by gearing 17 from the cam rings 6a, 6b, which may be secured to a pulley 7 and have a different number of lobes 6<SP>1</SP>, 6<SP>11</SP> than the number of cylinders, to urge the pistons 4 radially outwards so that the rollers 10a, 10b carried by crossheads 9 resiliently secured to the pistons by bolts 13 and springs 14 bear against the cam rings which are thus rotated relative to the housing fixed to a frame 1; a spherical seating 12 permits slight tilting movement between the crossheads and the pistons. The axle pins 9a, 9b of the rollers are extended to receive the guide rollers 11a, 11b which, during the reciprocating movement of the pistons, co-operate with the planes 15<SP>1</SP>a, 15<SP>1</SP>b formed on disc-shaped members 15a, 15b secured to the housing to support the pistons against lateral movement. The rollers 10a, 10b are prevented from bouncing as they move over the cams by springs 8. In an alternative embodiment, each piston has a single roller engaging the cam with a guide roller on each side.
Patent GB-755681-A (GB)
Title: Improvements in or relating to resilient axle suspension
Inventor: HENDRICKSON ROBERT THEODORE
IPC: B60G11/22
Filed: 1954-05-10
Abstract: 755,681. Spring suspensions; rubber springs. HENDRICKSON MOTOR TRUCK CO. May 10, 1954, No. 13613/54. Addition to 735,166. Classes 108 (2) and 108 (3). A resilient axle suspension adapted to be interposed between a vehicle frame and a single axle, comprises a pair of vertical pins, means for rigidly attaching the upper ends of the pins to the vehicle frame in longitudinally spaced relation on opposite sides of the axle, an elongated rigid fixture carrying vertical housings on the opposite ends thereof, each of which surrounds the lower end of one of the pins, means for rigidly securing the fixture to the axle, a sleeve of resilient rubber-like material within each of the housings and surrounding the lower end of the pin therein in thrust transmitting engagement in all directions, and cushion means formed of resilient rubber-like material interposed in load-supporting relationship between the frame and the rigid fixture. In the arrangement shown, for a driven rear axle, a fixture 58 extending over the axle longitudinally of the vehicle is formed with a plate portion 65 from which depeneds a central web 66 and a pair of housings 67, 67 for resilient sleeves 72. Each sleeve 72 surrounds the lower end of a pin 73 depending from the vehicle frame and is retained in the housing 67 by a ring 74 secured by bolts 75. The pin 73 is prevented from lifting out of the sleeve by a ring 76 and nut 77. The upper end of each pin 73 is secured within a sleeve portion 84 of a bracket 80 on the frame and a resilient cushion 71, Fig. 5, is located over the sleeve 84 between a horizontal plate portion 83 of the bracket 80 and the plate portion 65 which is provided with a retaining flange 70. The cushion 71 is provided with cavities 87. In operation, driving and braking forces are absorbed substantially by the sleeves 72 while vertical loads are absorbed substantially by the cushions 71. The sleeves 72 may be pre-stressed by adjustment of the nuts 77. A similar arrangement, Figs. 3 and 4 (not shown), is described for a front axle.
Patent GB-854450-A (GB)
Title: Improvements in steelyards
Inventor: HALL RONALD
IPC: G01G1/26
Filed: 1958-04-29
Abstract: 854,450. Steelyards. HERBERT & SONS Ltd. April 29, 1959 [April 29, 1958], No. 13620/58. Class 143 A steelyard has an arm along which are arranged in contact a line of balls of equal diameter and a poise carrying a formation which engages the balls. In the form shown, the arm comprises a hollow tube 1 inside which the balls 2 are a close fit. The poise 6 is a sliding fit on the tube and carries a spring-loaded pivoted lever 21 one end of which engages a cylindrical member 15 terminating in a prismatic formation 16 which projects through a slot 5 in the underside of the tube 1. Hardened surfaces 17, 18 of the formation 16 touch the surfaces of two adjacent balls to provide accurate location of the poise. The formation 16 may be replaced by one having a V-groove for engagement with a single ball. The outer surface of the arm carries a scale visible through a window 26 of the poise and initial adjustment is effected by movement of the screw-threaded plugs 3. A rider bar 27, slidable in the poise, carries graduations visible through a window 28 to indicate fractions of the weight divisions on the arm. In another form, for heavy loads, the arm is solid and the balls are accommodated in a groove in the arm.
Patent GB-772239-A (GB)
Title: Improvements in or relating to chimney throat blocks
IPC: F24B1/191
Filed: 1954-05-10
Abstract: 772,239. Open fireplaces. FYRESIDE, Ltd., and JESSOP, K. G. Aug. 4, 1955 [May 10, 1954], No. 13621/54. Class 126 A fireplace comprises a fireback with cheeks arranged in an opening below a chimney breast, .and a throat block resting on top of the fireback and cheeks and having its front face inset from the front of the chimney breast to form a space for part of a surround whose rear face lies in close proximity with the front of the throat block. The side walls of a chimney throat 'block converge rearwardly to conform with the side cheeks of the fire back, and the front face 12 and rear face of the block slope backwardly and upwardly, so that the backwardly sloping face of a fireplace surround 25 fits closely against the front of the block. The flue passage 23 extends upwardly and rearwardly from a trapezuim section at the bottom to a rectan- .gular section at the top. Reinforcements 28 may. extend through the front and rear walls of the block into the space at either side where they are embedded in concrete, as described in Specification 772,241, or the side wings may be moulded integrally with the block. The space between the front wall 12 and the surround 25 is filled with cement. Hooks 30 to support a guard or blower extend downwardly from the front wall of the block. The throat block may be provided with a damper as described in Specification 772,240.
Patent GB-1437845-A (GB)
Title: Gasification of solid carbonaceous material
IPC: C10J3/14
Filed: 1974-03-27
Abstract: 1437845 Gasification of solid carbonaceous material CHEVRON RESEARCH CO 27 March 1974 13674/74 Heading C5E A combustible gas is produced by heating and reacting solid carbonaceous material with reactive gases in a gasification zone to obtain the combustible gases and withdrawing the combustible gases from the gasification zone, the gasification zone being essentially free of molecular oxygen and the heating being to a gasification temperature; partially or wholly burning a portion of the combustible gases in a recycle gas combustion zone to obtain hot recycle gases essentially free of molecular oxygen; and passing the hot recycle gases into the gasification zone to supply the heating and the reactive gases for the reaction with the material. The temperature in the gasification zone is maintained below the fusion temperature of the ash formed in that zone. At least a portion of the combustible gases withdrawn from the gasification zone are cooled, e.g. from 600‹ F. to between 350‹ and 450‹ F., by a water quench which may contain alkali carbonate, before being passed to the combustion zone. The solid carbonaceous material may be waste material, e.g. municipal garbage, organic industrial or agricultural wastes such as wood or other cellulosic solids, or dried or partially dried sewage; or a fossil fuel such as lignite, peat or coal when the withdrawn gases may be first quenched with an oil stream.
Patent GB-1349236-A (GB)
Title: Method for the metered mixing of liquid components
IPC: C08G69/18
Filed: 1972-03-23
Abstract: 1349236 Metering liquid mixture components KRAUSS-MAFFEI AG 23 March 1972 [6 April 1971] 13777/72 Heading B1C In a method and apparatus for mixing a liquid with a minor proportion of a liquid additive in accurate proportions the liquids are circulated in conduits 13, 14 having spring-biassed injection nozzles 7, 8 supplying a mixing head 9. Closure of electro-magnetic valves 10, 11 causes the pressure to rise and the injection nozzles to open. The conduit 14 for the additive has a throttle 12 to prevent the pressure falling below a predetermined level, whereby the rise in pressure necessary before the nozzle 8 operates is reduced and metering accuracy improved. As described the primary liquid is a caprolactam-catalyst pre-mixture and the additive is an activator, the mixing ratio is 100:0.5 and the activator recirculation pressure is 10 Kg/cm<SP>2</SP> below the injection pressure. The reaction speed is controlled by heating jackets 4, 15.
Patent GB-1302210-A (GB)
IPC: G04B25/00
Filed: 1970-03-23
Abstract: 1302210 Clocks K KAWAMURA Y KAWAMURA and K KAWAMURA 23 March 1970 [24 May 1969] 13874/70 Heading G3T [Also in Division F1] A clock has a digital display formed by water columns from nozzles which are arranged in groups 1-1 to 1-21, the groups being supplied via a pipe 6 from a pump 4 driven by a motor 5. The nozzle groups are controlled by solenoid valves 3-1 to 3-23 which are opened and closed via a matrix circuit Fig.4 (not shown), by rotary relays (9-1 to 9-6), Fig.2 (not shown), which are arranged in tandem and are stepped by signals from a timer (7). The nozzle groups may alternatively be controlled by individual pump-motor assemblies and the indicated time may be changed at one or five minute intervals. The water columns are illuminated by lamps (23), Fig. 8 (not shown) which may be above or below the water level of a pond (20). The illumination may be periodic or varying in colour, under the control of a flasher circuit Fig. 6 (not shown) or alternatively of the matrix circuit so that the illumination varies with the indicated time.
Patent GB-580780-A (GB)
Title: Couplers for gas or oxygen cylinders
IPC: F17C13/04
Filed: 1944-07-20
Abstract: 580,780. Pipe connectors. JENSEN, J. July 20, 1944, No. 13888. [Class 99 (i)] [Also in Group XXIX] A junction piece for connecting two gas cylinders alternatively to apparatus to be supplied comprises a teepiece A of which the stem B is connected to the apparatus, and the head has secured to it at each end a member C carrying a seat C' for a valve D which is slightly shorter than the distance between the seats. The valve is of square section in the cylindrical bore of the head. Alternatively longitudinal grooves are provided in the valve or in the bore of the head to provide a passage between the valve seats and the branch B.
Patent GB-218987-A (GB)
Title: Improvements in wire ropeways
IPC: B61B12/12
Filed: 1924-06-06
Abstract: 218,987. Bleichert & Co., A. July 13, 1923, [Convention date]. Rope grips.-In wire ropeways having a stationary carrying rope 16, the traction rope 17 bears part of the load during the passage of the car over the supports of the rope 16, by making the clips movable in the vertical plane containing the traction rope axis, the clips being guided at right-angles to the track. The clip comprises a pair of arms 3, Fig, 1, carried by pivots 4 on the carriage 2 and pivoted at 8 to the other arm 7 which carries a roller 9 engaging a slot in a slide 10 carried by the carriage 2. The slide 10 is movable in vertical guides 11 and engages parts 5, of the carriage forming lower and upper stops. The clip is opened and closed by a roller 14. The clip may have a roller 19, Fig. 4, engaging a guide rail 20 to deflect the rope 17 from upper guide-rollers. The ropes 16, 17 may be level with each other and the clip jaws shaped to suit the rope rollers. The Specification as open to inspection under Sect. 91 (3) (a) states also that in a modification. Fig. 6, the jaw 21 is rigidly fixed to a slide 22 while the other jaw 23 is actuated by a screw working in a threaded sleeve 24 turned by a lever 25 and weight 26. A spring 27 bears on the slide 22. This subject-matter does not appear in the Specification as accepted.
Patent GB-769049-A (GB)
Title: Embossed projection screen
IPC: G03B21/60
Filed: 1955-05-13
Abstract: 769,049. Projection screens. GRETENER, E. May 13, 1955 [May 15, 1954],No. 13955/55. Class 97(1) An embossed projection screen is composed of specularly reflecting elements, identical at all points of the screen, the orientation of the elements with respect to the screen plane varying in at least one direction across the screen, the cone of diffusion from each element increasing in width of cross-section symmetrically from top to bottom. Suitable character,- istics are provided by trapezoidal elements, as shown, having a uniform curvature in horizontal section. Alternatively, the elements may be rectangular and the curvature in horizontal cross-section may increase from top to bottom of each. In the absence of any vertical curvature the reflection at the bottom of the diffusion cone of each element would be weaker because of the greater width of the cone there. A vertical curvature may be introduced to compensate for this. The Specification explains how the shape of the diffusion zone of each element and the inclination of the elements to the screen are chosen to suit the geometry of the auditorium. Specification 766,052 is referred to.
Patent GB-571850-A (GB)
Title: Improvements in and relating to a machine for testing hardness of materials
IPC: G01N3/42
Filed: 1943-08-26
Abstract: 571,850. Testing physical qualities. HEIDE, H. C. (Gillette Safety Razor Co.). Aug. 26, 1943, No. 13959. [Class 106 (ii)] A hardness-testing machine, particularly for use in testing abrasive wheels, ceramic products, artificial stone, cement and the like, comprises a rotary drill or testing tool for penetrating into the workpiece, a weight mounted on the tool spindle preferably so as to rotate relatively to the spindle, and a gauge or indicating means responsive to the axial movement of the spindle. The drive to the spindle may be made through a flexible coupling, and provision is made for imparting a predetermined number of revolutions to the tool. The machine shown in Fig. 1 comprises a standard 10 with an overhanging head casting 11 and removable cover 12. The standard 10 has guideways 13 upon which slides a work table 14 operated by a hand wheel 21. The head casting 11 encloses a self-contained spindle unit with upper and lower flanged bushings 30, 31 in which is journalled a tool-carrying spindle 25. The spindle is shouldered to receive a sleeve 26 that is secured to the spindle and carries ball-bearings for a cylindrical weight 29. The spindle is mounted for limited vertical movement and at its upper end has a flexible coupling with a hollow driving shaft 38 by means of pins 35 on a dish 34 engaging pianowire arms 36 extending from a collar 37 on the shaft 38, see Figs. 1 and 3. The shaft 38 is surrounded by a bushing 39 journalled in a bracket 40 secured to the head casting 11. A rod 41 extends through, the shaft 38 and rests at its lower end on the spindle 25 and engages at its upper end the plunger 42 of an indicator or gauge 43. A guard plate 45 (not shown) is provided to hold the plunger out of contact with the rod 41 when not in use ; a setting handle 48 is also provided for adjusting the pointer to zero or other initial setting. An electric motor 50 with an automatic stop mechanism 55 and gearing 56, 57 and 58 is arranged to drive the hollow shaft 38, the supply of energy to the motor being cut off after a predetermined number of revolutions have been made. A friction brake 59 is provided about the hub of the gear 57 to prevent overthrow of the driving gear train. Instead of measuring the depth of penetration resulting from a predetermined number of revolutions the number of revolutions required to penetrate the work to a predetermined depth may be the basis of measurement.
Patent GB-317126-A (GB)
Title: Improvements in or relating to the manufacture of artificial filaments
IPC: D01D5/06
Filed: 1928-05-11
Abstract: 317,126. Healey, C. J. May 11, 1928. Apparatus for making filaments.-Artificial silk, ribbon, straw, or the like are made by extruding the solution to be coagulated, particularly ammoniacal-copper cellulose solutions, into a trough arranged in a bath of precipitant liquid so that the passage of the filaments through the trough causes an overflow of the precipitant liquid from the trough into the bath at one end and an inflow from the bath to the trough at the other end, with the result that a continuous circulation of the precipitant liquid is maintained through the trough. The bath is preferably sub-divided into two compartments, which communicate with each other near the bottom of the bath, and the trough is preferably constructed with a floor upwardly inclined to a lip overhanging or adjacent one compartment of the bath, so that this compartment receives the overflowing precipitant whilst the trough is replenished with precipitant from the other compartment. The trough may taper in width towards the lip. In the form of apparatus shown, the precipitant bath 1 is divided into two compartments by the partition 3, which extends along the whole length of the bath and is adjustable vertically or horizontally. The side edges of the partition may be provided with flexible and adjustable flanges or packing to ensure close fitting against the side walls of the bath. The top of the partition extends slightly above the level 6 of the bath liquid and a space is left between the bottom of the partition and the floor of the bath. An auxiliary bath 2, through which the spun threads may be conducted, may be fitted with a. partition 7 in similar manner. This auxiliary bath may contain precipitant liquid of different strength or other acids or alkalies or water as desired. The spinning-jet or jets 8, which may be of any number, are arranged so that each jet projects into the rear of a glass trough 9, whose floor and sides converge to a narrow lip 10 overhanging the top of the partition. Guides 11 are provided for the threads 12 leaving the bath and the bath may be provided in any convenient manner with openings and pipes for heating the bath, admitting or withdrawing the precipitant liquid, supplying water and so on. The size of the bath is adapted, when spinning ammoniacal-copper cellulose solutions, so that the ammonia dissolved in the precipitant liquid passing over the lips of the troughs is allowed to evaporate freely and the copper is precipitated'in the forward compartment.