baber/WOPTO huggingface dataset:
Patent GB-958779-A (GB)
Title: Improvements in gear type hydraulic pumps and motors
IPC: F04C15/06
Filed: 1960-05-19
Abstract: 958,779. Rotary pumps and motors. R. W. BRUNDAGE. May 19, 1960, No. 17721/60. Heading F1F. In a hydraulic pump or motor of the internally-toothed gear meshing with an externallytoothed gear type, the bearing 17 supporting the internally toothed gear 12 is mounted with a limited freedom of radial movement in the housing H such that the resultant force due to the hydraulic pressures within the working chambers of the pump or motor acts about a point of contact between the bearing and the housing so as to maintain the working chambers hydraulically sealed. The bearing 17 has an inner cylindrical surface mounting the gear 12 and an eccentric outer surface provided with a bead 66, there being a clearance c between the bead 66 of the housing H. The gear members 11, 12 engage a manifold member 14 provided with an inlet port 43 and an outlet cut out 46. The neutral axis A, B through the centres of the inner and outer surfaces of the bearing 17 is angularly off-set from the land mid-line of the manifold member 14 so that trapping occurs in the pumping chambers. Chambers in which liquid is trapped are in communication with ports 70 which are interconnected by a restricted passage 71. The eccentricity of the bearing member 17, the clearance c and the spacing of the axis of rotation of the internally and externally toothed gears 11, 12 are so chosen that the eccentric bearing member engages the housing at a point 102 a distance d from the resultant m of the hydraulic forces so that a moment is applied to the bearing member 17 and thus the gear 12, tending to rotate these members so as to bias the open mesh gear teeth into engagement. As the speed of the pump increases the effect of the trapped hydraulic fluid increases due to the restricted passage 71 and modifies the resultant of the hydraulic forces such that the closing force on the open mesh gear teeth no longer exists. The end sealing member 13 is an interference fit or is welded to the drive shaft 16 and is mounted in a bearing 54; it is biased axially by means of a sealing member 75 the internal surfaces of which are subjected to low pressure through a passage 19 and the external shoulder 87 to high pressure existing in the housing H. Specification 958,780 is referred to.
Patent GB-888312-A (GB)
Title: Improvements in or relating to electronically operated clocks
IPC: G04C3/027
Filed: 1958-06-03
Abstract: 888,312. Electric clocks. JAHRESUHRENFABRIK G.m.b.H. A. SCHATZ & SOHNE. June 3, 1958 [June 7, 1957], No. 17736/58. Class 139. In an electric clock the pendulum maintaining circuit includes a transistor 6 connected to pick-up and drive coils 4, 5 which cooperate with a permanent magnet 3 located in the bob 2. A diode 8 prevents self excitation of the transistor circuit. A variable resistor may be connected to the diode to provide for regulation. Several permanent magnets are used if the invention is applied to a torsion pendulum. The circuit may include two transistors to provide greater amplification. A small permanent magnet may be used as the core of the coil combination to provide selfstarting.
Patent GB-705258-A (GB)
Title: Clips for supporting or displaying articles
IPC: A47G1/06
Filed: 1950-07-17
Abstract: 705,258. Card stands; picture hangers. JONES, P. July 16, 1951 [July 17, 1950], No. 17828/50. Classes 52(3) and 52(4) [Also in Group XV] Pictures, plaques or other rectangular articles are supported for display by a pair of articulated members 1 with . ends 5 shaped to engage the corners of the article and drawn together by a spring clip 10 serving as a strut or hanging loop.
Patent GB-294101-A (GB)
Title: Improved process for the treatment of vegetable textile fibres so as to render them not liable to putrefaction
IPC: D06M13/02
Filed: 1928-06-20
Abstract: 294,101. Lambrecth, J. J. July 16, 1927, [Convention date]. Proofing against bacteria and fungi; proofing processes; proofing compositions.-A process for proofing vegetable fibres, yarns, or fabrics against fungi or rot consists in boiling the material under normal or increased pressure in a bath formed of a fatty vegetable or animal body, for instance oleic acid, soda lye and a mineral oil, the bath being previously subjected to agitation to ensure saponification of the fatty body and diluted with a boiling solution of sodium carbonate and soda lye. In carrying out the process, 3 grams of oleic acid, 2 grams of colourless or light coloured mineral oil of the consistency of glycerine, and 1 gram of soda lye are agitated in 1 litre of water. When the oleic acid is saponified, the mixture is emulsified in boiling water containing 6 grams of sodium carbonate and 4 grams of liquid soda lye of 36‹ B. The materials are boiled in this solution for from three to 12 hours in an open vessel, or in an autoclave at a pressure of two to three atmospheres for from 1¢ to 6 hours. After treatment the materials may be bleached by means of sodium hypo-chlorite, permanganate, oxygenated water or chloride of lime.
Patent GB-1354313-A (GB)
Title: Fading resistants for colour photographic images
IPC: G03C1/815
Filed: 1971-05-28
Abstract: 1354313 Imidazolidine and oxazolidine derivatives KONISHIROKU PHOTO INDUSTRY CO Ltd and SANKYO CO Ltd 28 May 1971 [28 May 1970] 18000/71 Heading C2C [Also in Division G2] Imidazolidine and oxazolidine derivatives having the general formula wherein X is an oxygen atom or imino group; Y is a carbonyl group, an iminomethylene group or an aminomethylene group; R 1  and R 2  are alkyl, phenyl or aralkyl groups, or R 1  and R 2  together with the carbon atom to which they are attached form a 5-, 6- or 7-membered saturated alicyclic group or a group of the formula wherein Z is a hydrogen atom, a hydroxyl group or a free radical (-O); R 4  and R 5  are (C 1 -C 4 ) alkyl groups or one of them is a hydrogen atom, or R 4  and R 5  together with the carbon atom to which they are attached form a 5-, 6- or 7- membered saturated alicyclic group or a group of the formula n is 1 or 2; and when n is 1, R 3  is a hydrogen atom or an alkyl, cycloalkyl, aryl, or aralkyl group, and when n is 2, R 3  is an alkylene or arylene group or a group of the formula wherein R 6  is an oxygen atom, a methylene group or a group of the formula and R 7  is a hydrogen atom or alkyl group but excluding those compounds in which the symbols defined above have the following combination of meanings: X is an imino group, Y is a carbonyl group, R 1  and R 2  are each alkyl groups or together with the carbon atom to which they are attached form a saturated 5- or 6-membered alicyclic group, n is 1 and R 3  is a hydrogen atom, are used as fading resistants for photographic dyes. Several methods of preparation are given.
Patent GB-811659-A (GB)
Title: Process for producing derivatives of 1-aryl-3-amino propanol-1
Filed: 1956-06-11
Abstract: The invention comprises a process for the preparation of an amino-alcohol of the formula <FORM:0811659/IV (b)/1> (wherein R is alkyl, cycloalkyl, aryl or aralkyl and R1 is hydrogen, alkyl, cycloalkyl or aralkyl) in which a nitrile R1CH2CN is reacted in the presence of a molar amount of a strongly basic condensing agent, e.g. sodium amide, sodium hydride, triphenylmethyl sodium or a dialkylamino-magnesium halide, with a ketone of the formula aryl.CO.R and the thus produced nitrile of the formula <FORM:0811659/IV (b)/2> is hydrogenated.  This process may be combined with further treatment of the amino-alcohol by reacting it with an alkylating, aralkylating or cycloalkylating agent to form a compound of the formula <FORM:0811659/IV (b)/3> (wherein R2 is hydrogen, alkyl, cycloalkyl or aralkyl and R3 is alkyl).  In examples: (1) benzophenone and acetonitrile in ether with sodium amide at 28 DEG  to 30 DEG  C. give b  : b -diphenyl-hydracrylic acid nitrile, this on hydrogenation in methanolic-ammonia with Raney nickel at 80 DEG  to 100 DEG  C. and 50 to 80 atmospheres gives 1 : 1 - diphenyl - 3 - amino - propanol - 1 and this on hydrogenation with Raney nickel in aqueous methanol and in presence of formaldehyde gives 1 : 1-diphenyl-3-dimethylaminopropanol-1; (2) acetophenone and acetonitrile in ether with sodium amide at 30 DEG  C. give b -methyl-b -phenylhydracrylic acid nitrile, this on hydrogenation substantially as in (1) gives 2-phenyl-4-amino-butanol-2 and this is either reacted with formic acid and formaldehyde at steam-bath temperature to give 2-phenyl-4-dimethylaminobutanol-2, or is hydrogenated in acetone with Raney nickel at 80 DEG  C. and 60 to 90 atmospheres to give 2-phenyl-4-isopropylaminobutanol-2, which on methylation yields 2-phenyl-4-isopropylmethylaminobutanol-2.
Patent GB-694047-A (GB)
Title: Improvements in or relating to winding mechanisms
IPC: G03B1/40
Filed: 1950-07-20
Abstract: 694,047. Kinematograph apparatus. INTERNATIONAL PROJECTOR CORPORATION. July 20, 1950 [Aug. 9, 1949], No. 18131/50. Class 97 (i). [Also in Group XVI] A film winding mechanism includes a take-up member on a shaft driven by friction from a drive shaft, the driven shaft rotating in bearings between the take-up member and the friction drive member and disposed in a rockablymounted housing. As shown, in a projector, the spool spindle 14 is carried in ball-bearings in a housing 36 supported on two pins, not shown, projecting inwards from diametrically opposite points on a ring 41, the bearing housing being located in the ring by a rounded upstanding part 40. Alternatively the pins may be shouldered. The spindle carries the hollow friction member 15 driven by the member 17 composed of rings of friction material carried on a hub 25 in which is formed the pulley 21 for the driving belt 20. Ball-bearings support the hub 25 on a spindle 22 having an eccentric portion 22a clamped in a bracket 23 so that by rotating it the spindle 14 may be adjusted to be horizontal. The housing 36 is acted on by a spring-loaded ball 52 to provide a force between the friction members when winding starts. Alternative securing holes are provided in the ring 41 so that it may be attached to the projector with the pivotal axis of the housing 36 horizontal even if the projector is raked.
Patent GB-1490292-A (GB)
Title: Friction clutches
IPC: F16D13/70
Filed: 1976-05-03
Abstract: 1490292 Friction clutches AUTOMOTIVE PRODUCTS Ltd 3 May 1976 [1 May 1975] 18223/75 Heading F2C [Also in Division E2] In a friction clutch having release levers 3, a presser plate 1 and a cover 2, each release lever 3 is pivoted on a pivot pin 11 which extends through the eye of an eye bolt 4, the pivot pin being semicircular in transverse cross-section and having a lengthwise extending recess 12 in its diametral side, the inner surface of the recess 12 being radiused to receive a bearing member 13 disposed in the eye. The bearing member 13 of the embodiment shown in Fig. 1 engages a curved end of the eye. The bearing member may alternatively fit into a slot of a circular eye (Fig. 2, not shown) or may comprise a needle roller which engages in a recess 12 of semicircular cross-section and is supported in a recess of a support member in the eye (Fig. 3, not shown).
Patent GB-1033542-A (GB)
Title: Window catch mechanisms
Inventor: BETTS ARTHUR JOHN
IPC: E05C3/12
Filed: 1964-05-02
Abstract: 1,033,542. Catch mechanisms. FORD MOTOR CO. Ltd. May 2, 1964, No. 18340/64. Heading E2A. A window catch mechanism for a slidable window comprises a hollow knob with a skirt portion 31 pivoted with respect to a mounting arrangement which is in turn fixable to a vehicle window, a catch member 5 pivoted with respect to the mounting arrangement at a position within the hollow knob offset from the pivot of the knob, the catch member lying partly within the knob, extending through an opening 35 in the skirt portion, and having a cam surface engaged by an end 43 of the opening 35 in the skirt portion of the knob, so that rotation of the knob pivots the catch member to move it further into or out of the knob. As shown the catch member in one embodiment is gravity loaded and is moved by rotation of the knob into or out of engagement with a stop 47 to prevent or allow sliding open of a window on which the mounting arrangement is fixed. In a second embodiment the member 5 is spring loaded to its lower position in engagement with the stop, and the member 5 and stop 47 have cam surfaces so that when the window is slid from an open to the closed position the member 5 which is in the lower position is made to ride over the stop 47 so that the window is automatically latched.
Patent GB-169309-A (GB)
Title: An improved press for articles of wearing apparel
IPC: A47G25/72
Filed: 1920-07-03
Abstract: 169,309. Dew, J. W. H. July 3, 1920. Presses.-A folding press in two parts a, b, Fig. 1, hinged together, has its top and bottom boards connected by hinges h which have a stamped-up part k Fig. 4, serving as a guide for a spring clip i. A projection l on the clip serves as a stop to limit the movement of the clip.
Patent GB-336620-A (GB)
Title: Improvements in the means of extracting dust and grit from air, flue gas or other medium
IPC: B01D45/14
Filed: 1929-06-17
Abstract: 336,620. Pneumatic Conveyance & Extraction (1929), Ltd., and Smith, W. A. June 17, 1929. Addition to 256,063. Density separators.-The arrangement of dust extractor and fan as described in the parent Specification is modified so that the two parts are structurally combined although they provide separate stages for the medium in its passage through the extractor. In the form shown in Figs. 1, 2 the upper part of the collector a contains the extractor passage b consisting of two pairs of semi-circular frusto-conical elements with a narrow outlet e<1> between the outer edges of each pair. The part above the collecting chamber consists of the outlet spout g and the snail shaped housing h for the fan c. The part h<1> of the fan housing extends downwards to a point below the centre of the fan. The inlet j is axial and a relief pipe k joins the collector to the inlet, the entrance to the pipe being protected by a baffle k<1>. In the modification shown in Figs. 3, 5 an upper part a<1> is attached to the collector a and this contains curved passages b<1> which form extensions of the extractor passages b. An inlet o serves the two extractor passages and a fan q is mounted in the chamber eccentrically with regard to the passage b. The fan induces a flow of air from the inlet o through the passages p and the extractor passages b, and then discharges through the outlet n. The dust is discharged through the peripheral gaps e<1> into the hopper a. The air carried through the gaps with the dust returns to the inlet o by passing the baffles r, r'. In a modification, a separate dust collecting chamber is arranged under each extractor passage. In a further modification the single fan is replaced by two fans, one on each side of the casing; the fan outlets are shaped to constitute expansion chambers. In another modification the gas passes through the fan before it passes through the extractor passages.
Patent GB-890511-A (GB)
Title: Preparation of steroid compounds
IPC: C07J41/00
Filed: 1958-06-10
Abstract: A D 1,4-3,20-diketo-11b ,17a ,21-trihydroxypregnadiene or a 21-lower aliphatic ester thereof is prepared by treating the corresponding 3,20-disemicarbazone with a dilute mineral acid, e.g. hydrochloric, sulphuric and phosphoric acids, having a concentration not greater than 0.5 N, in the presence of a water-immissible organic solvent. The process may be applied to the preparation of prednisolone and its 9a -fluoro-, 9a -fluoro-16a -hydroxy- and 16a -methyl-substitution products.  A detailed example is given.  3,20-Disemicarbazones of D 1,4-3,20-diketo-11b ,-17a ,21-trihydroxypregnadienes are prepared by converting D 1,4-3,11,20-triketo-17a ,21-dihydroxypregnadienes or 21-esters thereof to the corresponding 3,20-disemicarbazones and then reducing the potassium borohydride.  The 3,20-disemicarbazones of prednisolone, 9a -fluoroprednisolone, 9o -fluoro-16a -hydroxyprednisolone and 16a -methylprednisolone may be prepared by this method.
Patent GB-1136648-A (GB)
Title: Photo-responsive resistance device
IPC: H02P7/292
Filed: 1966-04-27
Abstract: 1,136,648. Control of D.C. motors. GENERAL ELECTRIC CO. 27 April, 1966 [23 June, 1965; 28 June, 1965], No. 18562/66. Heading H2J. [Also in Division G1] A photo-rheostat of the type in which a control device varies the amount of light passing to a photo-resistor is provided with means for disabling the controlling effect of the photoresistor when the control device is at the ends of its range of adjustment. The control device may be a cam operated shutter 15, Fig. 3, movable in a slot in a housing 16 containing the lamp 17 and a CdS photo-resistor switches 20, 21 operated by a bar 13 and the shutter 15 respectively disconnect the photo-resistor output from the controlled circuit and apply an open and short circuit at the ends of the range of rotation of the rod 10. In another embodiment, Fig. 6, (not shown), the rod 10 rotates a housing containing the lamp 30 and a polarizer 29 so that the amount of light passing through the polarizer 31 to the photo-resistor 32. The limit switches are operated by arms 26. The photo-rheostat may be connected in a potential divider connected to the control electrode of a silicon controlled rectifier (SCR). The SCR is in series with a D.C. motor and is fed by chopped D.C. The photo-rheostat thus controls the mean motor current.
Patent GB-562598-A (GB)
Title: Improvements relating to electrical recording apparatus
IPC: G01L3/10
Filed: 1942-12-31
Abstract: 562,598. Recording electrical measurements. SIEMENS BROS. & CO., Ltd., and TURNER, F. Dec. 31, 1942, No. 18569. [Class 40 (i)] Electromagnetic unbalance of a circuit due to small movements, e.g. torsion in a shaft are recorded by apparatus driven simultaneously with a differential transformer arrangement for effecting rebalance. The nature of the electric circuits is shown in Fig. 1 wherein a member C1 connected at one point on shaft S carries a pair of transformers T3, T4 having primaries P3, P4 in series with a current source and secondaries S3, S4 connected in opposition in a control circuit, the magnetic circuits of the transformers being varied in opposite senses by a bridging member H2 carried at another point on the shaft and providing variable gaps. The re-balancing is effected by a second similar pair of transformers T1, T2 the resultant secondary output of which is adjusted to balance the secondary output of the first pair. The current source may be alternating but, as shown, D.C. is used in conjunction with an interrupter ISP, the secondary circuit being interrupted on alternate half cycles at ISS to provide pulsating D.C. in the circuit. Out of balance current operates PR which energizes one or other of the electro-magnets ASM, AHM. The recording apparatus shown in Fig. 2 comprises a unidirectional driving motor EM which operates the interrupters ISP, ISS and drives a shaft L and bevel pinion LC. The recording stylus S is driven by a screw shaft SS driven in one or other direction from a shaft SCS which has diametrically opposite bevel pinions selectively engageable with pinion LC by the out-ofbalance magnets ASM, AHM. The screw shaft SS is also coupled to screw FDS which adjusts the bridging member H1 of the rebalancing transformers T1, T2. The record strip C is driven through a friction clutch FC from shaft L by variable speed gear trains. A finger knob may be provided for driving shaft SS by hand if the motor or source of power fails, the position of the stylus being read on a scale SCE. Specification 166,317, [Class 37], is referred to.
Patent GB-242341-A (GB)
Title: Improved means for allowing for heat expansion in rotary valves of internal combustion engines, and other valves or members moving within an enclosing casing
IPC: F01L7/02
Filed: 1924-08-05
Abstract: 242,341. Alexander, A. E., (Lehman Rotary Valve Co., Inc.). Aug. 5, 1924. Rotary cylindrical valves; piston valves.-In order to allow for heat expansion in rotary or slide valves, the valve casing is provided with a semi-cylindrical flexible member 19 clamped at its edges 19<a> but free to bow outwards at its centre when subjected to heat expansion. The member 19 is so shaped that, when the parts are cold, the centre part of the member contacts with the valve &c. 17 at the portion opposite the ports 14, 15,. 16 so as to maintain a good seating, while the edges of the member 19 and the adjoining parts of the casing allow a slight clearance. at the sides of the valve; as the valve expands, this clearance is taken up, and the member 19, becoming heated, bows upwards to allow for the expansion of the valve in that direction. The valve is mounted in ball bearings 22. A spring-pressed plate is fitted at one end of the valve to take up axial expansion. The valve is cooled by air entering a funnel-shaped inlet 35 at one end and passing through a central bore in the valve. The flow of air may be assisted by a fan. The member 19 may be made in separate sections extending between thicker straps placed over the bearings 22, and may have one or more longitudinal connections. A slight air space is allowed between the lower wall 41 of the casing and the member 19; or the wall 41 may be of aluminium and replace the member 19. The sections of the valve 17 are connected together by interengaging lugs on their adjoining ends, these lugs being maintained in driving engagement by a spring locking- ring engaging a groove in the inner surface of the lugs.
Patent GB-997073-A (GB)
Title: Improvements in or relating to gear pumps
IPC: F04C2/08
Filed: 1964-05-05
Abstract: 997,073. Internally-meshing gear pumps. O. ECKERLE. May 5, 1964 [March 6, 1963], No. 18636/64. Heading F1P. [Also in Division F2] An internally-toothed driving gear for internally meshing gear pumps, comprises two parts, of which one, a driving shaft 1, Fig. 1, is formed with a head 2 and the other, a crown wheel 3 having toothing 4 which is formed with a recess 7 for receiving the head 2. This construction allows the milling operation to form the toothing in a normal one-piece driving gear to be dispensed with and the crown wheel to be manufactured, for example, by an extruding or sintering process, with consequent more accurate toothing. To secure the two parts together a dish-spring 9 engages upset ears 8 or alternatively a continuous upset periphery on an enlarged diameter portion of the shaft 1. Alternatively, the spring 9 may engage a splitring inserted in a recess in the shaft 1 or the upset ears or continuous upset periphery may engage a chamber in the bore of the crown wheel through which the shaft 1 passes. A driving connection between the shaft and crown wheel may comprise a nose 15 in the recess 7 and a groove 16 in the head 2. Alternatively, teeth 29, Fig. 9, complementary to the crown wheel teeth 30 may be formed on a conical head 25 of the driving shaft 24. The teeth 18, Fig. 7, of a crown wheel 19 may be surrounded by a sheath 20 having pressure relieving recesses 22 connected by bores 23 with the tooth gaps.
Patent GB-350729-A (GB)
Title: Improvements in cargo hatchways
IPC: B63B19/14
Filed: 1930-06-18
Abstract: 350,729. Hatches. NIELSEN, M. A., 34, Christian Richardtsrej, Odense, Denmark. June 18, 1930, No. 18649. Convention date, Aug. 30, 1929. [Class 113 (i).] The coaming 4 of a ship's hatch is set back on the deck beams 2 to form a ledge 7 on which the hatch beams 6 rest. The beams are held in position by angles 8 on the coaming or studs 12, Fig. 5, on the ledge 7. The hatch beams are lifted and transported across the hatch by a device consisting of a wheel 14 mounted in the end of a lever 13 and running on the coaming 4. The lever 13 carries a clip 19 to which is secured a wire 18 having a hook 20 for attachment to the beam 6. The wire 18 passes over a cam 16 which can be turned by a handle 17 to raise the beam, the upward movement being limited by a stop 21.