baber/WOPTO huggingface dataset:
Patent GB-853982-A (GB)
Title: Production of alkyl, aryl and aralkyl esters of acids of trivalent phosphorus
IPC: C07F7/28
Filed: 1957-03-18
Abstract: Esters of acids of trivalent phosphorus having the formula P(OR)3, R1P(OR)2, R12P(OR), (HO)P(OR)2 or HOR1P(OR), wherein R is an aryl, aralkyl or alkyl group having at least 2 carbon atoms and R1 an aryl, aralkyl or alkyl group are prepared by the separate simultaneous addition of a phosphorus halide, R 3-he-n PX n, where X is chlorine, bromine or iodine and n is 2 or 3, and the calculated proportion of ammonia gas to at least the calculated proportion of an alcohol or phenol ROH, the addition being so regulated that the ammonia addition is completed in substantially the same time as the addition of the phosphorous halide, the reaction temperature being maintained at from-25 DEG  C. to about 65 DEG  C., with the limitation that for the preparation of neutral phosphites the temperture is maintained above 25 DEG  C., and the pH at 7-8,5 for the preparation of neutral esters and 5,5-6,9 for acid esters.  In a modification of this process for the production of acid esters, (HO)P (OR)2 and (HO)R1P(OR), the ammonia addition is completed in two-thirds or one-half, respectively of the time taken to add the phosphorous halide, the pH being maintained at 7-8,5 during the addition of the ammonia.  An inert hydrocarbon solvent may be used.  The required pH may be maintained by the use of proportioning pumps to add the reactants or by means of an electronic or chemical indicator, e.g. just basic to Methyl Red for pH7-8,5.  The process may be operated in a continuous manner. The required amount of ammonia and the minimum required amount of hydroxy compound may be obtained from the following equations. <FORM:0853982/IV(b)/1> <FORM:0853982/IV(b)/2> <FORM:0853982/IV(b)/3> <FORM:0853982/IV(b)/4> <FORM:0853982/IV(b)/5> Examples describe the preparation of triethyl, triisopropyl, tributyl, triisooctyl, trioctyl, trinonyl and tridecyl phosphites, dimethyl, diethyl, dipropyl and diisopropyl hydrogen phosphites, diethyl methylphosphonite, dioctyl ethylphosphonite, dihexyl phenylphosphonite, diethyl octylphosphonite and butyl diethylphosphonite.
Patent GB-542902-A (GB)
Title: Improvements in and relating to heald shaft holders for looms
IPC: D03C1/14
Filed: 1941-07-12
Abstract: 542,902. Healds. MASCHINENFABRICK RUTI VORM C. HONEGGER AKT.-GES. July 12, 1941, No. 8845. Convention date, Aug. 7, 1940. [Class 142 (i)] A device to enable the heald shaft of a loom to be hung up or taken off and displaced vertically without loose ning the shaft motion comprises a rail 14 having a clip 19 engaging the lower strap 3a of the shaft, a clip 16 engaging the upper strap 3, and a screwthreaded head portion 15 by which the rail can be adjusted lengthwise of the shaft motion chain 5. The rail is connected to the chain by a rectangular-shaped guide member held in a slot in the rail by a screw 11, and an adjusting screw 7 mounted in a block 6 upon the chain engages the portion 15 of the rail. When the shaft has been hung up by engaging the slips 19, 16 with the straps 3, 3a the upper clip is locked in position by a locking device 21, Fig. 10, which is slipped over the clip 16 so as to embrace the clip and strap 3.
Patent GB-437630-A (GB)
Title: Improvements in optical sound recording or reproducing apparatus
IPC: G11B7/00
Filed: 1935-03-21
Abstract: 437,630. Perforating. MIHALY, D. VON, 3, Hildegardstrasse, Wilmersdorf, Berlin. March 21, 1935, No. 8852. [Class 83 (iv)] [See also Group XXXVIII] A slit-forming device for recording or reproducing photographic sound - records comprises a hollow body 1 having a pointed end 2 with a slit 4 in the frontal area 3 thereof and a squeezing ring 5 pressed on the end 2 by screws 6. The inner diameter of the end 2 next to the front part 3 is made but slightly smaller than the diameter of the frontal area 3, this latter diameter being preferably made substantially equal to the width of the sound track to be recorded or reproduced. The device may be formed from a solid of revolution by pointing one of its ends conically until the desired diameter of its frontal area is obtained and then boring it out until the point of the drill appears in the centre of the frontal area 3. The remaining thin frontal part of the body is then slotted by means of a fine slot-cutter of a width of about 0À1 mm. and a gauge of mica &c. having a thickness of 0À02 mm. is then put into the slit which is then contracted by the ring 5 until it tightly encloses the gauge. The end 2 can be flattened instead of conical.
Patent GB-140811-A (GB)
Title: Improvements in and relating to alternating current dynamo-electric machines
IPC: H02K3/16
Filed: 1920-03-26
Abstract: 140,811. Siemens - Schuckertwerke. March 29, 1916, [Convention date]. Field magnets, dampers on poles of.-Rings n of copper &c. which beoome plastic under the action of centrifugal force serve to convey current between the active parts s of damping windings and their end connexions, such as the bronze end covers k. The rings are preferably of trapeziform cross-section and are placed in grooves formed by chamfering the adjacent edges of the rotor sides f and end covers k. The solid teeth of the rotor may act as damping bars.
Patent GB-558365-A (GB)
Title: Improvements relating to electric push-button switches
IPC: H01H13/02
Filed: 1942-06-30
Abstract: 558,365. Swiches held set and freed mechanically. ROTAX, Ltd., and BOURNE, W. G. June 30, 1942, No. 9011. [Class 38 (v)] Contact arm f bearing contact g is actuated to make contact with contact e by a three armed lever h a plunger n engaging one arm j, another plunger o with sub-plunger s and spring bearing on another arm k, and a locking member u moved by the plunger o, ensuring that the plungers can only be operated by hand in one direction and alternately. A further pair or pairs of contacts may be closed by an additional lever 3 moving right or left from a central position, such lever only being operable when the plunger n is out and preventing, by its operation, any movement of the main switch while either of the additional circuits are closed, by placing a part 5a of a cylindrical extension in the path of movement of the arm j.
Patent GB-100795-A (GB)
Title: Electric Spark-gaps.
Inventor: SIMPSON FREDERICK GRANT
IPC: F23Q7/00
Filed: 1916-06-28
Abstract: 100,795. Simpson, F. G. June 28, 1916. Spark-gap apparatus.-A quenched spark-gap consists of a disk electrode 3 having a circular flange 4 screwed to receive a collar 5 supporting an annular insulating-member 12 which carries the upper electrode 15. The joints between the parts 3, 5, 12, 15 are air-tight, so that the discharge occurs in an enclosed space. The electrode 15 is secured to the member 12 by a metal disk 18 which screws into a hub portion 16 on the electrode. The electrodes may be of bronze coated with silver, and the insulating-member 12 of steatite, which has about the same coefficient of expansion as bronze. The collar 5 has cooling- libs 6. A contact spring 22 is secured by a screw to the disk 18. The gaps may be piled one on the other, the disk 3 of one gap-making electric contact with the spring 22 of the gap beneath it. Recesses 9, 20 may be formed in the various disks to receive the studs of a spanner wrench when the parts are put together.
Patent GB-606651-A (GB)
Title: Improvements in or relating to indicating devices for finger dials and like apparatus
IPC: H04M1/56
Filed: 1944-05-12
Abstract: 606,651. Impulse transmitters. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 12, 1944, No. 9136. Convention date, May 14, 1943. [Class 40 (iv)] A finger dial is provided with a pointer which indicates the last digit dialled, and returns to a zero position immediately on commencement of the next dialling movement. In the Figure, the shaft 6 lies inside the hollow shaft of the dial and is fixed rigidly to a non- movable part of the dial. The pointer 12 fixed to the ratchet 9 moves freely on the shaft 6 and when the catch 16 is disengaged rotates under the torque of the spring 10 to the zero position defined by the engaging of a projection on the pointer with the screw 13 secured in the shaft 6. Said screw also secures a friction wheel 14 rigidly to the shaft 6. Pressed against the friction wheel by the spring bridle 20 is the angular device 19 having a claw encircling the catch 16. Catch 16 is held firmly by the spring 17 to the holder 1 which is mounted on the finger-plate. On commencement of the dialling, movement of holder 1 causes catch 16 to engage with the claw 19 so disengaging the catch from the ratchet and enabling the pointer to return to its zero position. Further movement of the finger-plate increases the pressure between the catch 16 and the claw to rotate the device 19, overcoming the friction between it and the wheel 14. On commencement of the restoring movement of the dial, the catch 16 released from the pressure of the claw engages with the ratchet 9, the continued motion of the finger-plate thereby moving the pointer to the number dialled.
Patent GB-609925-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H3/60
Filed: 1946-03-25
Abstract: 609,925. Tumbler switches. FEAREY, C. R. March 25, 1946, No. 9198. [Class 38 (v)] In a switch having a felt layer B on its underside, a sector - shaped insulating tumbler E pivoted at D carries a contact G bridging contacts H<1>, and felt stops K<1>, K<2> engaging felt stops L<1>, L<2> on the base A. Dead-centre snapaction is obtained by springs F. A dolly M, secured to the tumbler E, projects through a slotted cover N.
Patent GB-399725-A (GB)
Title: Process for the treatment of fibrous cellulosic materials
IPC: D21H17/66
Filed: 1933-03-27
Abstract: Fibrous cellulose is parchmentized or gelatinized by subjecting it to the action of a soluble salt of the group consisting of sodium, ammonium, and potassium, e.g. sodium iodide, sodium nitrate, ammonium nitrate, and potassium iodide, dissolved in liquid ammonia in concentration and for a period of time limited to avoid complete dispersion of the cellulose.  Other suitable salts are sodium chloride, sodium thiocyanate, potassium thiocyanate, potassium nitrate, ammonium chloride, ammonium iodide, and ammonium thiocyanate.  A solution of a mixture of two such salts may be employed.  In an example, paper or paper pulp is parchmentized in a liquid ammonia solution of ammonium thiocyanate, ammonium chloride or nitrate, or sodium nitrate at a temperature between -34 DEG  C. and 30 DEG  C.  The presence of small amounts of water accelerates the treatment.  For gelatinizing cellulose the more soluble salts such as sodium or ammonium nitrate, sodium iodide, and sodium thiocyanate or mixtures of salts, are used.  The gelatinized products may be employed as moldable cellulose plastics, or used to produce leather-like paper products.  Swollen products may be sufficiently brittle to be ground to give a highly absorptive material suitable for the production of sanitary pads or filter paper.ALSO:Fibrous cellulose is gelatinized by subjecting it to the action of a soluble salt of the group consisting of sodium, ammonium, and potassium, e.g. sodium iodide, sodium nitrate, ammonium nitrate, and potassium iodide, dissolved in liquid ammonia in concentration and for a period of time limited to avoid complete dispersion of the cellulose.  Other suitable salts are sodium chloride, sodium thiocyanate, potassium thiocyanate, potassium nitrate, ammonium chloride, ammonium iodide, and ammonium thiocyanate.  A solution of a mixture of two such salts may be employed.  For gelatinizing cellulose the more soluble salts such as sodium or ammonium nitrate, sodium iodide and sodium thiocyanate or mixtures of salts are used, and the gelatinized products employed as moldable cellulose plastics or used to produce leather-like paper products.
Patent GB-792186-A (GB)
Title: Lubricating compositions
IPC: G01V3/165
Filed: 1956-03-26
Abstract: A lubricating composition, suitable for use at extreme pressures, high speeds and high temperatures, comprises a major proportion of a water-miscible polyoxyalkylene liquid lubricant and a minor proportion of a heat condensation product formed from a water-soluble aliphatic hydroxy carboxylic acid and an aliphatic polyhydric alcohol.  Preferred polyoxyalkylene liquids are the polymers or copolymers of one or more alkylene glycols or alkylene oxides, and the esters and ethers of such polymers and copolymers.  Aliphatic polyhydric alcohols mentioned are glycols, polyglycols, pentoses, hexoses, and hexitols.  In the examples, lubricating compositions are described consisting of a polyoxyethylene oxy-1,2-propylene glycol liquid together with a heat condensation product of (a) propylene glycol with tartaric or citric acid, or (b) ethylene glycol with lactic acid.ALSO:A lubricating composition comprises a major proportion of a water-miscible polyoxyalkylene liquid lubricant and a minor proportion of a heat condensation product formed from a water-soluble aliphatic hydroxy carboxylic acid and an aliphatic polyhydric alcohol.  Preferred polyoxyalkylene liquids are the polymers or copolymers of one or more alkylene glycols or alkylene oxides, and the esters and ethers of such polymers and copolymers. Aliphatic polyhydric alcohols mentioned are glycols, polyglycols, pentoses, hexoses and hexitols.  In the examples, compositions are described consisting of a poly-oxyethylene oxy1,2-propylene glycol liquid together with a heat condensation product of (a) propylene glycol with tartaric or citric acid, or (b) ethylene glycol with lactic acid.
Patent GB-141385-A (GB)
Title: Improvements in or relating to artificial leather or leather substitutes
IPC: D21H17/60
Filed: 1916-07-03
Abstract: 141,385. Miller, G. July 3, 1916. Artificial leather; paper, treating with special materials.-Artificial leather is made from paper, alone or combined with a textile fabric, by treating with a vegetable glue such as is obtained from bananas, or from the farina of colocasia esculadium, mixed with water containing 2-5 per cent of glycerine, with or without the addition of isinglass, casein, gum damar, or other agglutinant. The material is then air-dried and may be dyed. The material so treated may be waterproofed with a mixture containing a vegetable wax such as carnauba, mixed, for example, with paraffin wax and turpentine. A number of sheets may be superposed, and the material may be finished to give it the appearance of ordinary leather.
Patent GB-1002270-A (GB)
Title: Improvements in or relating to mobile power operated screw jacks
Inventor: MATTOCKS JOHN CHARLES THOMAS
IPC: B66F3/08
Filed: 1963-03-11
Abstract: 1,002,270. Jacks. GLOBE PNEUMATIC ENGINEERING CO. Ltd. March 11, 1964 [March 11, 1963], Nos. 9475/63 and 9476/63. Heading B8J. A liquid-tight screw jack 60 for use in stabilizing ships in dry docks comprises a casing 1 containing a screw 2 secured to a worm-wheel 3 meshing with a worm 4 driven by a fluidoperated motor 5. The screw 2 is in threaded engagement with a ram 6 which is prevented from rotating by a lug 7 sliding in a groove 8. The jack 60 is provided with four wheels 9 which can run on rails 10 when the jack is disengaged. Operation of the jack 60 is by a manually operated valve A controlling valves C, D. Movement of a lever 73 to the raise (R) position causes the ram 6 to be extended. When the ram 6 contacts the ship's bottom (not shown), springs 30 associated with wheels 9 are compressed and a valve B is opened to indicate on an indicator F that the jack is fully up while the fluid-operated motor 5 stalls on full power. When the lever 73 is centralized the ram 6 sustains the load: its sustaining power being 25 times its lifting power. Fig. 2 shows a modification wherein a stationary jack has a thrust plate 31 hinged at 32 and arranged to compress a spring 39 to open a valve B when the ram engages a ship's bilge (not shown). Figs. 3, 6 show a traversing device for a pair of jacks 60 including a reversible fluid-operated motor 33 coupled to a gear unit 34 with a driving shaft projecting from both sides thereof and carrying chain wheels 35. A chain 37 passes over each wheel 35, over guide wheels 36 and an end wheel 38 being secured at its ends to the ends of a jack 60. Operation of the motor 33 moves both jacks 60 simultaneously towards or away from keel blocks 61. The position of the jacks 60 may be shown on an indicator N (Fig. 7) where movement of the jacks rotates a cam 43 to engage a spring loaded spindle of a pressure regulating valve 44. In Fig. 8 (not shown) a rope may be wound up or unwound to show on an indicator the position of the jacks.
Patent GB-1411878-A (GB)
Title: Actuating means and especially actuating means for thermostatic systems
IPC: F16J1/04
Filed: 1973-02-27
Abstract: 1411878 Temperature responsive actuating elements; pressure indicators DANFOSS AS 27 Feb 1973 [4 March 1972] 9492/73 Headings G1D and G1L Actuating means comprises a resilient sleeve 2 having one end closed and arranged for receiving an actuating stem 4, the sleeve 2 having two opposed longitudinally extending walls which merge to form two longitudinal edges contained in a longitudinally extending plane, each wall bowing outwardly from the plane and the angle between inner surfaces of the wall adjacent each edge being substantially less than 180 degrees when the sleeve is unstressed, the sleeve 2 being mounted in a chamber so that, in use, a change in volume of a medium, e.g. liquid, which may be due to a change in pressure or temperature, in the chamber causes the walls to approach each other by bending at the edges. The shape of the stem preferably corresponds in cross-section to that of the unstressed sleeve, the shape being as shown in Fig. 4. Portions A are arcuate, portions B being linear or slightly curved, the ratio b/f being preferably 0.4. The angle X is 15-120 degrees. Each edge of the sleeve may be curved in cross-section, and the sleeve and actuating stem may taper longitudinally towards the closed end of the sleeve.
Patent GB-948997-A (GB)
Title: Method of preparing monocrystalline layers
IPC: C30B23/00
Filed: 1962-03-13
Abstract: <PICT:0948997/C3/1> A monocrystalline layer of a semi-conductor is vapour deposited on a substrate such as quartz or rock salt, through an adjustable aperture such as an iris diaphragm, placed between the source and the substrate, so that the initial deposit is in the form of a punctiform speck and the aperture is then enlarged to give the required area of deposit.  The coating materials are Si, Ge, or other substances of Group 4 of the Periodic Table and the intermetallic compounds Aiii Bv, Aii Bvi, Ai Bvii.  Doping materials such as phosphorus and boron may also be evaporated either separately or together with the semi-conductor materials. As shown in the drawing an iris diaphragm 6 is placed between a source rod 1 and a carrier 4 heated by heater 5, the diaphragm being closed at the start so that the carrier can be outgassed and the initial vapour which may be contaminated is deposited on the diaphragm.  The carrier 4 is heated to below the melting temperature of the coating material and several layers of material of different conductivity may be deposited by evaporating rods of different conductivity through separate diaphragms.  The substrate may also be moved relative to the diaphragm which may be in the form of a wedge shaped slot.
Patent GB-1027533-A (GB)
Title: Improvements in or relating to dry-shaving apparatus
IPC: B26B19/38
Filed: 1963-03-11
Abstract: 1,027,533. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 11, 1963 [March 14, 1962], No. 9556/63. Heading B4B. In a dry shaver comprising a removable shaving head 2 which is held resiliently on the edge of a hair chamber 4, part of the wall 5 of which is formed by two spring-loaded hinged flaps 6 each having a lip 24 which, in the closed position of the flaps, engages behind the edge 23 of the head 2, a pin 17 is slidably mounted in the wall of the chamber 4, one end 18 of the pin engaging the edge of the head 2 and the other end having a bent-over portion 19 which bears against an inclined surface 20 on a plunger 21 so that when the plunger is moved inwardly by a push-button 22, the pin is pushed upwards to lift the head 2 at one end to release the lips 24 and allow the flaps 6 to spring open under the action of their hinge pins 7. The head 2 is provided with two pins 13 each formed with a lateral notch 14 which are engaged by the free ends of two springs 15 secured to the bottom plate of the chamber 4.
Patent GB-1145238-A (GB)
Title: A rigid axle suspension system
IPC: B60G11/18
Filed: 1968-02-28
Abstract: 1,145,238. Vehicle beam axle rear suspensions. FORD MOTOR CO. Ltd. 28 Feb., 1968 [1 March, 1967], No. 9586/68. Heading B7D. A vehicle rear suspension comprises an axle housing extending between and supporting a pair of wheels 36, 38, a pair of links 88, 90 pivotally connected to a chassis 10 at their forward ends and to the axle housing at their rearward ends, laterally extending arms 64 pivotally connected at their inner ends to the chassis by supports 58 and at their outer ends to the axle housing and a pair of longitudinally extending torsion bars 54 each of which is connected at its front end to the chassis and has at its rear end an inwardly extending lever arm 68 pivotally connected to the respective arm 64 intermediate its ends. Each torsion bar is connected to the chassis by a vertical strut 70 which is adjustable in length to vary the chassis riding height and, at its forward end, by a mounting 52 which is resiliently mounted on the chassis and is connected to a torsion bar 48 for the front wheel on the same side of the vehicle to provide a degree of interconnection between the front and rear wheels. Each arm 64 is connected to the chassis by a vertical spring steel member 58, which permits lateral compliance, and to a torsion bar 54 by a hollow tension link 80 through two hardened buttons 84 which are in rolling contact with corresponding surfaces of the link. The differential housing 30 of the axle is secured to a torque tube 42 which is pivotally connected to the chassis through an offset bracket 44 and a shackle 46.
Patent GB-1205291-A (GB)
Title: Waste water treatment system
IPC: C02F3/12
Filed: 1968-02-28
Abstract: 1,205,291. Filter. NEPTUNE MICROFLOC Inc. 28 Feb., 1968 [2 March, 1967], No. 9605/68. Heading B1D. [Also in Division C1] A filter has media graded from coarse to fine in the direction of flow. The media have at least three different specific gravities with the higher SG being associated with the lowest particle size. The particles are mixed: to give an increasing number of particles in a downward direction. The filter is backwashed in two stages.
Patent GB-204282-A (GB)
Title: Improvements in and relating to balloon toys
IPC: A63H27/10
Filed: 1923-04-07
Abstract: 204,282. O'Connor, F. A. April 7, 1923. Balloons.-In a balloon toy of the kind in which the balloon neck is twisted, after inflation, within a collar, the balloon is attached to a tube 1 which abuts against one end of the collar 5, the other end 5<x> being concave to fit the balloon surface. The stem may be made of candy.
Patent GB-1460255-A (GB)
Title: Radial piston pump or motor
IPC: F04B1/07
Filed: 1975-03-07
Abstract: 1460255 Reciprocating pumps and motors ROBERT BOSCH GmbH 7 March 1975 [16 March 1974] 9659/75 Heading F1A In a radial piston pump or motor comprising a rotary cylinder block 6 supported on a stationary valve pintle 5 and having pistons 8 engaging an eccentric track ring 10 via slippers 9, the bearing capacity of hydrostatic bearing fields, produced between the cylinder block and pintle by grooves 22 to 25 on each side of inlet and outlet ports 18, 19, is increased by the provision of further grooves 40 to 43 and 46 to 49 in the lands 36, 37 between the ports 18, 19. Grooves 22 and 24 are connected by a bore 35, and grooves 23 and 25 by a bore 34. Grooves 41, 43 and 46, 48 are connected to port 19 by ducts 54 to 57 respectively, and grooves 40, 42 and 47, 49 to port 18 by ducts 52, 53, 58, 59, respectively. Each duct may have a throttle 60. Slippers 9 are held on track ring 10 by rings 11, 12. Drive-shaft 13 is coupled to cylinder block 6 by a coupling disc 17 with interengaging dogs and slots.