baber/WOPTO huggingface dataset:
Patent GB-725231-A (GB)
Title: Driving wedge for machines for winding the stators of electrical machines
IPC: H02K15/06
Filed: 1953-06-18
Abstract: 725,231. Stator winding apparatus. COMPAGNIE ELECTRO-MECANIQUE. June 18, 1953 [Nov. 5, 1952], No. 16840/53. Class 35. A wedge for radially driving a winding into the stator slots from corresponding slots of a dummy rotor comprises a central portion 1 and two similar end portions 2 the thickness of which being greater than the width of the rotor slots so as to prevent any lateral movement. When the winding is thus inserted, the wedges are brought to their initial position by resilient members 5 mounted in recesses 4 formed in the end portions 2 of the wedges. Specifications 639,069 and 649,432 are referred to.
Patent GB-540434-A (GB)
Title: Improvements in electromagnetic induction apparatus
IPC: H01F30/10
Filed: 1940-11-25
Abstract: 540,434. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 25, 1940, No. 16915. Convention date, Nov. 24, 1939. [Class 38 (ii)] A transformer comprises an annular core 11 formed of spirally wound strip, primary and secondary windings 13, 14 arranged side by side, an insulating barrier 28 between the windings and an insulating cylinder between the windings and the core. The windings have stepped sides and are supported on insulating rings 15, 19. The elements forming the insulating barriers 28 and the insulating cylinder 24, 25 are formed as shown in the exploded view, Fig. 5, to interlock with each other on assembly, the core structure, which is applied by the method described in Specification 501,474, serving to maintain the cylinder halves together. Insulation 27 is provided between the core 11 and casing 42, and in order to distribute voltage stresses symmetrically, an electrostatic shield 43 insulated from the core but connected to the high voltage winding 13 is provided so that the total capacity from the high voltage winding to the core equals the total capacity from the core to earth. For insulation and cooling purposes the casing may be filled with liquid or with a mixture of sand and wax.
Patent GB-169299-A (GB)
Abstract: 169,299. Quinn, H. O. June 29, 1920. Attaching files to supports; clamping-devices.- A memorandum block h is secured to a telephone desk by means of a device consisting of a member a provided with a threaded stud c, a member b having an elongated slot through which the stud c passes, a nut e clamping the two parts a, b together, and a clamping-plate k.
Patent GB-376456-A (GB)
Title: Improvements in or relating to inflatable and deflatable hollow rubber articles
IPC: B29C37/00
Filed: 1931-06-11
Abstract: All or part of the surface of a vulcanized inflatable rubber toy is coated with individually separate fibres so that the extensibility of the rubber is not substantially reduced.  The surface of the toy is treated with a solvent, strewn with the fibres, subjected to pressure by means of a rubber air cushion and the coating is finally vulcanized.  The solvent may contain an adhesive resin such as mastic.  Alternatively, the inflated vulcanized toy may be dipped into a rubber solution containing an adhesive and the fibre coating then applied as previously described.  In a modified process, the toy is dipped in a rubber solution containing the adhesive, dried and then dipped into a solvent alone and the coating applied.  A dispersion of rubber may be used in place of the solution.
Patent GB-152723-A (GB)
Title: Improvements in anvils
IPC: B21J19/04
Filed: 1919-07-08
Abstract: 152,723. Smith, H. W. July 6, 1919. Anvils.-A sliding and rotational adjustment for an anvil is obtained by mounting it in a circular recess in a base bb, in which it is fixed by setscrews l and adjusting the base along a fixed rack e by a hand-driven pinion d. The pinion is locked by a pawl f on a square shaft k which is pushed inward against a spring to release the pinion when it is desired to rack the anvil.
Patent GB-237096-A (GB)
Title: The manufacture of dyestuffs of the triarylmethane series
IPC: C09B11/22
Filed: 1924-07-18
Abstract: The dyestuffs derived from a benzaldehyde having a replaceable p-substituent such as Cl, NO2, SO3H, CH3O., &c., and two molecular proportions of an o-oxybenzenecarboxylic acid are condensed with halogenated aromatic bases having o-substituents to the amino groups; such bases are 4-, 5-, or 6-chlor-2-toluidine, 4 : 6-dichlor-2-toluidine, 3-chlor-4-toluidine, 4-chlor-2-anisidine, 4-chlor-anthranilic ester (COOC2H5 : Cl : NH2=1 : 4 : 2), and 1-chlor-2-aminonaphthalene.  The products dye wool in bluish-red to reddish-violet shades changed to fast red-violet by after-chroming; they may be sulphonated to increase their solubility.  According to examples (1) the dyestuff from o-cresotinic acid and p-chlorbenzaldehyde is heated with 6-chlor-2-toluidine and the hydrochloride thereof and the excess of the base removed by steam distillation after rendering alkaline; (2) the dyestuff made by sulphonating the product from o-cresotinic acid and benzaldehyde is similarly condensed with 4-chlor-2-toluidine: the dyestuff from salicylic acid and p-chlorbenzaldehyde is also specified as parent material. Specifications 12130/10, 17087/10, and 12378/12, are referred to.
Patent GB-1419736-A (GB)
Title: Austenitic stainless steel
IPC: C22C38/00
Filed: 1974-04-19
Abstract: 1419736 Austenitic stainless steel NISSHIN STEEL CO Ltd 19 April 1974 [21 April 1973] 17322/74 Heading C7A Austenitic Stainless Steel of composition:- The amount of carbon and nitrogen in solid solution may be reduced by the inclusion of aluminium and/or titanium in the steel or by vacuum oxygen decarburization or argon oxygen decarburization. The cast steel may be hot forged, solution treated for one hour at 1100‹C, water quenched, machined, cold-rolled, annealed for 10 minutes at 1050‹C, air cooled, cold-rolled, finally annealed for five minutes at 1050‹C, air cooled and may be used in deep drawing and stretch forming applications.
Patent GB-1108282-A (GB)
Title: Alkali metal salts of carboxymethyl cellulose
IPC: C08B11/12
Filed: 1965-04-23
Abstract: An alkali metal salt of carboxymethylcellulose is prepared by steeping cellulose in aqueous alkali in a 2-phase liquid system containing aqueous water-miscible aliphatic alcohol and aromatic hydrocarbon or alcohol, to form alkali cellulose; monochloroacetic acid (MCA) or an alkali metal salt thereof is then admixed at 15-45 DEG  C. for at least 5 minutes, the temperature is then maintained below 75 DEG  C. until the MCA or salt has been consumed; during the etherification there are present 0.15-0.24 parts by weight of water per part of alcohol.  0.4-1 part by weight of caustic alkali is used per part of cellulose, the steeping being for at least 10 minutes at 15-40 DEG  C.  The 2-phase system contains 30-46% wt. of aliphatic alcohol of 2-4 C atoms.  Before addition of the MCA the alkali cellulose may be cooled.  The resulting solution is rheologically smooth.  The cellulose may be e.g. wood pulp and/or cotton linters. Oxidizing agents, e.g. H2O2, may be added during or after etherification to lower the viscosity, and water may be added after etherification to make the product more dense.
Patent GB-546467-A (GB)
Title: Improvements in and relating to accelerometers and decelerometers
IPC: G01P15/135
Filed: 1940-12-06
Abstract: 546,467. Accelerometers. BRITISH ROPES, Ltd., KERRY, J. L., and HITCHEN, H. Dec. 6, 1940, No. 17388. [Class 106 (iii)] A mass supported by leaf springs is fitted to the cage in winding gear and co-operates with electric contacts to signal abrupt departures from the normal rate of travel of the cage. A mass 1 is connected by leaf springs 2 to a standard 3 on a base plate 4 fixed to a pit cage or the like. The mass is connected by a pin 5 with a lever 6 having pivots 7 on a standard 8. The lever is provided at one end with an armature 11 arranged to move in the gap of a permanent magnet 13 to damp its movement, and carries a contact 14 adapted to co-operate with a contact 15 in an electric circuit so that when the latter is completed by relative movement between the mass 1 and the support a recording device or audible or visible signal device or both is or are actuated.
Patent GB-692531-A (GB)
Title: Improvements in or relating to circuits for selector switches
IPC: H01H63/24
Filed: 1951-07-24
Abstract: 692,531. Automatic exchange systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 24, 1951 [July 27, 1950], No. 17486/51. Class 40 (iv). A latch - controlled wiper - switch driven through a clutch which is automatically released on overload following the stopping of the switch by the engagement of the latch, the wiper-carriage remaining subject to a force in the original direction of movement, e.g. through a spring coupling to part of the clutch, is set by means of a control device comprising testing means which cause engagement of the latch when the switch reaches a marked outlet, the circuit for the testing means being completed a definite time after the disengagement of the latch, in which time the switch has passed several outlets. This allows the switch to reach approximately its normal speed before engagement of the latch. As shown, the wiper carriage 9 of a single-motion group selector GK is rigidly secured to a ratchet-wheel 2 which is resiliently connected by a spring 20 to an auxiliary wheel 4 adapted to rotate in only one direction by means of a free-wheel device. The switch is driven by a constantly rotating ratchet wheel 3 through a pawl 21 which is pivoted to the auxiliary wheel 4 and engages a stud 22 on the wheel 2. Release of a magnet SM causes a latch 18 to engage the ratchet wheel 2 and stop the switch. The auxiliary wheel 4 continues its rotation for a short distance and the pawl 21 is then disengaged from the ratchet wheel 3. The spring 20 still exerts a torque on the wheel 2 in its direction of previous motion, and starts it rotating again when the magnet SM is re-energized to withdraw the latch 18. The pawl 21 then reengages the rotating ratchet wheel 3 to restore the driving connection. Circuit operation.-The selector GK, together with a control circuit BI common to a number of such selectors, is seized by the application of earth to line L3. Relays C and B are energized; relay A repeats incoming dialling impulses to a slow-releasing relay V, which holds during the impulse train, and to a rotary magnet D which steps a marking switch MS, operating off-normal contacts k1, k2, k3. At the end of the impulse train, relay V releases and energizes the magnet SM to start the switch GK as described above. After a delay, during which the speed of the switch GK settles down to approximately its normal value, a relay X operates to complete a circuit for test relay T which is energized when the switch GK reaches the outlet marked by marking switch MS. Magnet SM is then deenergized to stop the switch GK, relay P operates, relays C, B, T, V and X are released, and a pulse-sender KG drives the marking switch MS back to normal.
Patent GB-1185932-A (GB)
Title: Imaging System
IPC: G03G15/22
Filed: 1967-04-17
Abstract: 1,185,932. Electro-phoretic imaging. XEROX CORP. April 17, 1967 [April 18, 1966], No. 17624/67. Heading G2H. An apparatus for photo-electrophoretic monochromatic and polychromatic imaging comprises a rotatably mounted first electrode 10, means to apply a film 14 of a suspension of photo-sensitive particles to the first electrode an optically transparent second electrode rotatably mounted in close proximity to the first electrode and means to project an image on to the suspension at the area of contact of the second electrode with the suspension film and means to apply an electric field across the suspension to produce an image on at least one of the electrodes or on a transparent conductive imaging substrate between the electrodes. As shown, electrode 1 is a drum having a layer of transparent glass 2 having a tin oxide layer 3, while electrode 10 is electrically conductive material covered with insulating material e. g. Baryta paper. The layer 14 is supplied from a reservoir 15. A light source 26 forms an image of a moving transparency 25 on a mirror 20 which reflects the image to the line of contact 22 causing particles to migrate and adhere to the electrode 10 leaving a positive image 40 on the electrode 1 which is transferred to a copy web 41 and fixed. The copy web may be adhesive tape in which case the transferred image may be fixed by placing a lamination over its top surface. Alternatively, the carrier liquid may be in molten paraffin wax. Brushes 50, 51 removes remaining photo-sensitive particles from the electrodes 10 and 1 respectively. Materials which may be used as photo-sensitive particles, carrier liquid, and electrodes are described in Specifications 1,124, 625 and 1,155, 403. Examples are given of tri-mixes for colour imaging containing cyan, magenta and yellow pigments. Specifications 1, 137, 885 and 1, 185, 931 are referred to.
Patent GB-613263-A (GB)
Title: Manufacture of products useful as drying oils
Filed: 1946-06-13
Abstract: Products which resemble drying oils are obtained by re-esterifying a glyceride oil with a ketone-aldehyde condensation product.  The condensation products used are those obtainable from ketones containing not more than six carbon atoms and aldehydes containing not more than five carbon atoms, suitable products being obtainable from acetone and other lower saturated aliphatic ketones or cyclohexanone on the one hand and formaldehyde or its polymers, acetaldehyde, aldol, crotonaldehyde, acrolein or furfural on the other hand.  Specified oils which may be treated are linseed, bodied linseed, perilla, oiticica, soya, castor, dehydrated castor, China wood or fish oil.  The re-esterification may be effected in the presence of any of the usual catalysts, e.g. litharge, sodium methylate, sodium hydroxide or zinc oxide. An example is given in which a condensation product prepared from two mols. of formaldehyde and one mol. of acetone in the presence of sodium carbonate is heated with soya bean oil to effect re-esterification.ALSO:Products which resemble drying oils are obtained by esterifying a ketone-aldehyde condensation product with an acid derived from a glyceride oil, or by re-esterifying a glyceride oil with a ketone-aldehyde condensation product.  The condensation products used are those obtainable from ketones containing not more than six carbon atoms and aldehydes containing not more than five carbon atoms, suitable products being obtainable from acetone and other lower saturated aliphatic ketones or cyclohexanone on the one hand and formaldehyde or its polymers, acetaldehyde, aldol, crotonaldehyde, acrolein or furfural on the other hand.  The acids may be derived from linseed, bodied linseed, perilla, oiticica, soya, castor, dehydrated castor, chinawood or fish oil, or these oils may be re-esterified, as indicated above.  The esterification may be effected in benzene or toluene in the presence of an acid catalyst, e.g. p-toluenesulphonic, phosphoric, hydrochloric or sulphuric acid, or at a temperature up to 600 DEG  F. in the absence of a catalyst.  The re-esterification may be effected in the presence of any of the usual catalysts, e.g. litharge, sodium methylate, sodium hydroxide or zinc oxide. Examples are given in which a condensation product prepared from two mols. of formaldehyde and one mol. of acetone in the presence of sodium carbonate is (a) esterified with the acids of linseed oil, soya bean oil and dehydrated castor oil and (b) heated with soya bean oil to effect re-esterification.
Patent GB-256760-A (GB)
Title: Improvements in and connected with perimeters and other ophthalmic instruments
IPC: A61B3/024
Filed: 1925-07-13
Abstract: 256,760. Whitehead, F. P. July 13, 1925. Eye'- examining apparatus. - Self-recording perimeters are provided with a double-sided chart holder H, and a recording pointer G<3> which is moved proportionally to the movement of the colour carrier D from the same mechanism. The whole of the instrument is arranged to be supported by a stand A, applicable also to other sight-testing instruments. The sliding carrier D mounted on the curved arm B' is actuated by the rotation of the annular rim E<2>, having internal teeth in gear with the wheel E<1> by which the wheel E on the spindle D<3> is rotated. Movement of the carrier D is effected by flexible cords or a drum D' on the shaft D<3>. A small pinion G on the shaft of the wheel E<2> is in gear with the sliding rack G' carrying the recording pointer G', moving it in a manner proportional to that of the. carrier D<3>. Records are made on the chart H<2> mounted on the holder H, which is pivoted on spring pivots on a support I<6>. The chart holder H may be removed and turned round so that both sides may be used, one for each eye. The curved arm may be set in any angular position so that the whole of the retina may be examined. The instrument is mounted in a tubular support R', Fig. 3, at one end of a stand, provided at the other end with a head rest Q for the patient, adjustable in height by the wheel P'. The front of the head is supported against a flexible band, fitted with a series of horizontal clamping supports so that the form of the band may be fixed, and the head of the patient always placed in the same position for observation.
Patent GB-347941-A (GB)
IPC: A45D2/38
Filed: 1930-06-10
Abstract: 347,941. Hair - waving appliances. GOODMAN & SONS, Inc., H., 17, West 17th Street, New York, U.S.A. June 10, 1930, No. 17848. Convention date, Dec. 26, 1929. [Class 131.] A double hair waver comprises a pair of wire loops 10 mounted at one end on a transverse pivot 22, and each provided at the other end with a crimped or constricted portion 13 for interlocking engagement with the sides 18, 19 of a third loop 17 the free ends of which are also mounted on the pivot 22. A plate 25 may be provided adjacent the portions 13 to hold the loops 10 in fixed relation. The ends 14, 15 of the sides 11, 12 of each of the loops 10, and the ends 20, 21 of the sides 18, 19 of the loop 17, are coiled about sleeves 16, spaced apart by a sleeve 23, and mounted on the pivot 22. The pivot 22 and the crimped portions 13 of the loops 10 are raised with respect to the sides of the loops 10, so that the loop 17 is elevated above the loops 10 when in the closed position.
Patent GB-802161-A (GB)
Title: Improvements in and relating to pumps for cement grouting and the like
Inventor: LEGG KENNETH RICHARD
IPC: F04D7/04
Filed: 1955-06-21
Abstract: 802,161. Centrifugal pumps. GENERAL MECHANICS, Ltd. March 9, 1956 [June 21, 1955], No. 17911/55. Class 110 (1). A pump for cement grouting or the like comprises a tubular bearing chamber 8 secured to an elongated central tubular housing 2, which in turn is secured to a pump casing 5, one or more inlets 7 being provided in the housing 2 and a lateral discharge 6 being provided in the casing 5, the pump being adapted for immersion substantially vertically in a tank 1 with the casing 5 outside the tank and the bearing chamber 8 above liquid level to protect the bearings from contact with the liquid. The impeller 10 is of the centrifugal type.
Patent GB-654528-A (GB)
Title: Improvements in or relating to master cylinder units
IPC: B60T11/22
Filed: 1948-07-05
Abstract: 654,528. Master cylinder for hydraulic brakes. HYDRAULIC BRAKECO. July 5, 1948, Nos. 18043 and 18044. Convention dates, July 9, 1947, and May 17, 1948. [Class 103 (i)] A master cylinder for hydraulic brakes is provided at its end remote from the cylinder outlet with a stop-member 21 against which the piston 20 bears when in its normal inoperative position, the piston being provided with an annular attachment member 28 having a flange 33 which, in this position, tilts a replenishing valve 7 controlling the inlet of liquid from a reservoir 2. Although, as shown, the member 28 consists of a separate thimble-shaped member, it may instead be formed solid with the main body part of the piston 20. This type of master cylinder is stated to be of particular advantage when used with a pressure-fluid locking device of the type known under the Registered Trade Mark " Norol," which is used to prevent a vehicle rolling backwards downhill.
Patent GB-1492443-A (GB)
Title: Mixer valve
IPC: F16K11/078
Filed: 1975-05-01
Abstract: 1492443 Valves GOSWIN & CO 1 May 1975 [2 May 1974] 18174/75 Heading F2V A hot and cold water mixing valve comprises a plastics mixing bush 4 sealingly inserted in a housing 1 to form three separate chambers 5, 6, 7. Chamber 5 is connected to the hot water inlet, chamber 6 to the cold water inlet and chamber 7, a mixing chamber, is connected to the valve outlet 13. Axially sliding and rotating within the bush is a multi-landed control piston 8, also of plastics material. Piston land 83 controls an inlet orifice 42 in the bush for hot water and land 82 controls an inlet 41 for cold water. Axial movement of the piston controls the total flow through the valve. Slightly pivotally mounted between the lands 82 and 83 is a slide-valve segment 78, held in contact with the inner face of the bush by water pressure and rotating to control an outlet orifice 43 for control of hot water flowing into the mixing chamber. A similar segment 89, mounted between the lands 81, 82 controls the flow of cold water through an orific (49) into the mixing chamber. Rotation of the piston thus controls the mixing proportions, the slide-valve segments being arranged on opposite sides of the piston and the orifices being in line but axially displaced. The axial position of the control piston is determined by a hydraulic piston sliding axially within the control piston but splined to it for rotary movement. A knob 3 rotates the piston 9, and hence the piston 8, to determine the mixture later and the knob is moved axially to determine the total flow. As the knob is pulled out from the position shown a piston land 97 on the hydrualic piston 9 pumps water from a chamber 94 via bores 96 and 90 into a chamber 95 below the land 80 on the control piston to move the latter upwards. Pressing the knob inwards moves the control piston in the opposite direction. An adjustable stop for the rotary movement of the knob is provided by two mutually splined and adjustably positioned rings 21, 22 having stop segments 24, 26 which engage the knob. Figs. 11, 12 (not shown) disclose an arrangement in which the hot and cold water supplies enter the bottom of the valve housing through parallel entries.
Patent GB-1112229-A (GB)
Title: Conveyor
IPC: B65G25/00
Filed: 1967-04-20
Abstract: 1,112,229. Reciprocating conveyers. K. WISSMANN. 20 April, 1967 [2 Nov., 1966], No. 18187/67. Heading B8A. A reciprocable bar 2 carrying members 3, 4 for pushing material, e.g. metal waste, along a trough 1 is supported by the bottom of the trough. The bar is reciprocated by cylinder means 8 connected to the trough 1 so as to permit vertical and lateral movement of the cylinder and, consequentially, the bar 2. The arrangement is stated to avoid encrustation of conveyed material in the trough. In a modification, Figs. 7, 9, a drive cylinder 76 is mounted intermediate the ends of the trough on a cover 15 detachable from the troughs. Stationary flukes 25 on the trough prevent backward movement of the material. To permit the trough to be curved, sections of the reciprocable bar may be connected by leaf springs, Figs. 10, 11 (not shown).
Patent GB-220300-A (GB)
Title: Improvements in apparatus for the subcutaneous or internal injection of expanded gases in measured quantities
IPC: A61M5/00
Filed: 1924-07-31
Abstract: 220,300. Soc. Anon. Oxygett, (Assignees of Lesieur, M.). Aug. 11, 1923, [Convention date]. Drawings to Specification. Pressure-relieving devices for fiuids.-A safety device for use in apparatus for the subcutaneous injection of oxygen comprises a thin rubber tube, forming part of the delivery conduit, which will burst under excessive pressure.