baber/WOPTO huggingface dataset:
Patent GB-941940-A (GB)
Title: Arrangement for clamping iron transformer cores
IPC: H01F27/26
Filed: 1962-05-16
Abstract: 941,940. Transformers. MASCHINENFABRIK OERLIKON. May 16, 1962 [May 25, 1961], No. 18912/62. Heading H1T. The leg laminations of a transformer core are clamped together by plates which are preset in the manner of arched leaf springs, the yoke laminations being clamped by transverse members which may or may not be similarly pre-set. The pre-set plates 3 may have holes 9 to receive studs 10 on the transverse members 5 and holes 91 to receive retaining bolts during assembly. The transverse members are held by tie bolts 6 and also carry U-straps 12 having clamping screws 11, these straps forming a base for the transformer. Clamping elements 8 may serve to compress the windings (Fig. 2, not shown), and interlocking of the transverse members and the plates 3 may be effected by retaining members affixed to the latter instead of by means of studs 10. Additional clamping in a leg may be provided by means of straps or bolts in the case where the spring-like plates prove insufficient (Fig. 3, not shown).
Patent GB-976523-A (GB)
Title: New carboxylic acid amide mono azo dyestuffs and processes for their manufacture
IPC: C09B43/32
Filed: 1963-05-13
Abstract: Polyvinyl chloride foils are coloured in yellow or orange shades by the addition of monoazo dyestuffs free from acid water-solubilizing groups of formula <FORM:0976523/C3/1> wherein R1, R3 and R4 are benzene residues, R5 is a benzene or naphthalene residue and R2 is a naphthalene residue wherein the azo hydroxyl and carboxylic acid amide groups are in 1, 2, 3-position to one another (see Division C4). In Example 4 the dye of formula <FORM:0976523/C3/2> is admixed with polyvinyl chloride and dioctyl phthalate and the mixture worked on a heated 2 roll calender to produce a yellow-orange foil.ALSO:The invention comprises carboxylic acid amide monoazo dyes, free from acid water-solubilizing groups, of formula <FORM:0976523/C4-C5/1> wherein R1, R3 and R4 are benzene residues, R5 is a benzene or naphthalene residue and R2 is a naphthalene residue wherein the azo, hydroxyl and carboxylic acid amide groups are in 1,2,3-position to one another.  The dyes are prepared by processes wherein (a) a halide of a carboxylic acid of formula <FORM:0976523/C4-C5/2> is condensed in a molar ratio of 1 : 1 with a monoamine of formula H2N-R3-CONH-R4-NHCOR5 or (b) a halide of a carboxylic acid of formula <FORM:0976523/C4-C5/3> is condensed in a molar ratio of 1 : 1 with a amine of formula H2N-R4-NHCOR5.  The carboxylic acid halide derivatives are prepared by treating the corresponding carboxylic acids with phosphorus halides or thionyl chloride in known manner. The dyes are used as pigments to colour cellulose derivatives, rubber and natural and synthetic polymers and resins, in particular polyvinyl chloride (see Division C3), in the mass in yellow or orange shades.  Examples describe the preparation of the dyes.
Patent GB-1246791-A (GB)
Title: Computer for data selection
Inventor: BRULE JEAN PIERRE
IPC: G01S1/02
Filed: 1959-06-03
Abstract: 1,246,791. Pulse radar. COMPAGNIE I.B.M. FRANCE. 3 June, 1959, No. 19052/59. Heading H4D. In a pulse radar system, overloading of the target echo selection system is prevented by recording only those targets from which repeated echoes are received. Fast memory counters determine the echo absences in a signal group to ascertain whether the group corresponds to a target. Confirmed signal groups are transferred to a large capacity memory. As shown, echoes received by radar 16 are displayed at the P.P.I. 18. The operator selects a target shown at 18, inserts its co-ordinates at 12 and observes the trajectory of the selected target on one of the display devices 20. The operator employs approximate Cartesian coordinates, which are applied at 12, to identify the required echo. These are converted to an area or "window" at calculator 24. The selector 22 permits only those signals originating in the selected "windows" as defined by the calculator 24 to be fed to the drum store 10. The polar co-ordinates stored at 10 are translated to Cartesians, before the subsequent aerial scan by the calculator 24 to define the "window" for the second scan. Repeated calculation of the "window" co-ordinates are made at each scan. If during the scan of a "window" a predetermined number of echoes are received, thus indicating a target, then the window co-ordinates are calculated before the scan is completed. The echo selection system has two parts, the first of which provides, for each target, the coordinates of the possible trajectory in the space plane scanned, between the antenna scans, while the second part functions between consecutive pulses to measure the number of echoes. In the first part, a magnetic drum memory may record the echoes from one hundred targets in the form of coded Cartesian coordinates. Comparison of signals is effected by the memory to avoid overlap of scanned space planes. In the second part, a target is confirmed when at least three pulses are received from one object followed by not more than two absences of echoes at the receiving gate signal corresponding to the considered range. Recording is effected upon magnetic and ferrite drums and then coded.
Patent GB-1039714-A (GB)
Title: Image converter with a d.c.-operable electro-luminescent panel
Inventor: VECHT ARON
IPC: H05B33/12
Filed: 1962-05-17
Abstract: In a photo-conductive/electro-luminescent image converter panel, the phosphor is zinc sulphide activated by manganese and copper only and is capable of being operated on D.C. The preparation of the phosphor is described and involves firing pure ZnS with manganese and copper sulphates in the temperature range 700 DEG -1300 DEG  C.  Variation of the molecular ratio Mn/ZnS between 5 X 10-3 and 5 X 10-5 gives colours ranging from orange through white to blue.  The phosphor may be used without a binder or in a resin matrix.  The photo-conductive material may be PbS. An opaque, electrically anisotropic layer may be interposed between the layers to eliminate optical feedback. Conductive layers of stannous oxide complete the panel.  The panel may be made sensitive not only to U.V., visible and I.R. radiation but also to X-rays or alpha, beta or gamma rays.  It can also be operated on A.C.
Patent GB-478126-A (GB)
Title: Process for improving the machining qualities of iron-nickel-aluminium alloys
Filed: 1936-07-10
Abstract: The machining qualities of an iron-nickel-aluminium alloy containing 7-40 per cent of nickel and 5-20 of aluminium are improved by bringing the alloy to a temperature between 700 DEG  C. and its melting point and then cooling so that the mean rate of cooling in the range of temperature between the a -g  transformation temperature and 500 DEG  C. amounts to less than 5 DEG  per minute and preferably 1 DEG  per minute.  The alloy may be kept at the temperature above 700 DEG  C. for 15 minutes to 48 hours before cooling and this temperature may be below the a -g  transformation temperature.  The alloy may be cast, e.g. in a sand mould, and cooled before being heated, or after casting may be cooled as stated above.  The alloy after treatment as above is machined and then may be hardened by heating to 1000-1350 DEG  C. and quickly cooling to below 500 DEG  C. with or without a tempering at 500-700 DEG  C.  The Specification as open to inspection under Sect. 91 also contained the subject-matter of Specification 478,127, but this subject-matter does not appear in the Specification as accepted.
Patent GB-687169-A (GB)
Title: Electrical door-actuating apparatus
Inventor: WHEATLEY DENIS
IPC: E05F15/10
Filed: 1950-08-01
Abstract: 687,169. Control of D.C. motors. C.A.V., Ltd. June 14, 1951 [Aug. 1, 1950], No. 19165/50. Class 38 (iii) A split field series motor a is energised to open'a door when push-button h is actuated to interrupt the circuit of coil g, so causing spring-actuated contacts f to close an electromagnetic switch c. At the end of its opening movement the door opens limit switch e, to stop the motor, and closes limit switch e<SP>I</SP>. To close the door, switch h<SP>I</SP> is actuated to energise coil g and change-over the contacts f, so closing the contactor c<SP>I</SP>. The motor reverses until it is stopped by the opening of limit switch e<SP>I</SP>, the switch e being re-closed. The energisation of coil g is maintained after the switch h<SP>I</SP> has been released. Emergency push-buttons h<SP>2</SP> may be provided together with a signal lamp k which is connected in series with a door-operated switch m.
Patent GB-498877-A (GB)
Title: Improvements in or relating to materials for making artificial dentures
IPC: A61K6/083
Filed: 1937-07-12
Abstract: Artificial dentures are obtained by mixing styrene and powdered polymerized methyl methacrylate in suitable proportions to form a plastic mass, moulding the same to form the dentures and subsequently hardening by the application of heat.  A mixture containing 20-40 per cent of styrene may be moulded below 100 DEG  C. and hardened at about 100 DEG  C.  Hardening is effected in the presence of an accelerating agent which may be present in the polymerized methyl methacrylate or may be added.  It is unnecessary to cover the mould with tinfoil.  The material may be suitably coloured, e.g. by adding small quantities of titanium oxide and cadmium red.  In an example, a mixture comprising, by weight, 20 parts powdered polymerized methyl methacrylate, 7 parts styrene, 0,1 parts titanium oxide and 0,03 parts cadmium red, together with 0,08 parts benzoyl peroxide, is placed between the two halves of a flask containing the plaster mould which is then closed in a screw press and immersed in boiling water for 30-40 minutes.  Specification 484,343 is referred to.
Patent GB-165671-A (GB)
Title: Improvements in and relating to the attachment of heels to shoes
IPC: A43D79/00
Filed: 1920-07-07
Abstract: 165,671. Jackson, W. J. Mellersh-, (Reece Shoe Machinery Co.). July 7, 1920. Heels, machines for.-A. machine for preparing heels for attachment to shoes has a revoluble carrier with clasps around its perphery each arranged to hold an assembled heel top side outwards and carry it successively to compressing, piercing, and nail-driving mechanisms arranged to operate towards the axis of the carrier. As shown, a carrier with four pairs of self-adjusting heel. holders 70 is turned through 90 degrees after each cycle of the machine by a handle 60. A completed heel is then removed from the front pair of holders 70 and a new assembled heel inserted for treatment. Fixed cams co-operate with rollers pressing the other three pairs of holders together, so that the other three heels in the machine are securely held. The main shaft 50 is driven through reducing-gearing from a shaft 46, and at each revolution simultaneously operates a compresssor 80 acting on the lowest heel, awls piercing the rear heel, and nail-drivers 26 acting on the topmost heel. The compressor 80 is actuated by toggle links 85, 86 straightened by a pitman 87 engaging, an eccentric on the main shaft. Another eccentric operates a link 93 pivoted to a bell-crank lever 97 having a slot engaging a pin 132 on a link 131 operating the awls. Each awl 24, Fig. 4, is mounted on a slide 104 radially adjustable for different sizes of heels, and angularly adjustable along arc-shaped guides 107, the arrangement allowing the holes pierced to diverge towards the base of the heel, the angle of divergence being adjustable. The awls pass through perforations in a guide-plate 103 pressed against the heel by a spring 125. The nail-drivers 26, Fig. 1, are operated by a lever 161 having a pin- and-slot connection with a link 153 pivoted to the link 93, a pin 151 and co-operating cam-groove 150 swinging a nail box 140 from nail-receiving to nail-driving position. The box 140 carries a semicone member 27, Fig. 6, which guides the nails and drivers as they descend. Grooved superposed resiliently-mounted slides 175, 176, 177 cooperate with the member 27 to guide the nails. Retraction of the nail-box withdraws the member- 27 and straightens the ends of the nails into substantial parallelism. The heel is then removed from the machine and attached to a shoe by driving the nails a little further and clinching them against the last, a die plate being inserted within the semicircle of protruding nail heads to limit the additional drive. A top lift 21, Fig. 19, is then driven on to the projecting nail heads.
Patent GB-501886-A (GB)
Title: Chemical heating pad for permanent hair waving
IPC: A45D7/06
Filed: 1938-06-29
Abstract: 501,886. Heating by chemical action. UNITED STATES APPLIANCE CORPORATION, REYNOLDS, F. L., and MARKEL, L. June 29, 1938, No. 19330. [Class 64 (ii)] A chemical heating-pad for permanent hairwaving consists of an assembly 10, Fig. 1, of one or more sheets of absorbent asbestos paper 12a, 12b, 12c, with one or more interposed sheets of aluminium foil 13a, 13b. The assembly is perforated with holes 14 to facilitate saturation with the chemical solution that is applied to the assembly when required for use A solution of a mixture of copper sulphate, sodium chlorate, aluminium sulphate and ammonium chloride may be used. An outer wrapper of metal foil coated on its inner surface with a thin sheet 17, Fig. 5, of waxed paper, together with an absorbent sheet 18, Fig. 5, is folded over the assembly 10 to form the pad ready for application to the hair curler.
Patent GB-834755-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D45/00
Filed: 1958-06-17
Abstract: 834,755. Clutch combinations. REGIE NATIONALE DES USINES RENAULT. June 17, 1958 [June 18, 1957], No. 19377/58. Class 80 (2). A clutch mechanism comprises a centrifugal clutch having a driven disc 22 connected to an output shaft 2 by a one-way device permitting rotation of the output shaft by the input shaft 1 in one direction, and a driven clutch disc 23 connected to the output shaft by a one-way device permitting rotation in the opposite direction. Clutch plates 12, 18, 19 are axially slidable in a flywheel 6 fast with the input shaft, and an abutment plate 15 is fast with the flywheel. The disc 23 is clamped between plates 18, 19 by springs 20, plate 19 abutting plate 15, and is released by manually or semiautomatically operated means (not shown) acting on the plate 18. The centrifugal clutch plate 22 is clamped between plates 12, 19 by the action of radially slidable centrifugal wedges 8 which have antifriction balls or rollers 11 and are urged inwardly against a collar 10 by a spring 9. A spring 14 maintains the plate 12 in contact with the antifriction means 11. Plate 22 is connected by tangential springs to an elastic disc 24 having frictional contact with the plate 25 which is splined on the output shaft and with a plate 26 having a threaded connection with the hub of plate 25, thus providing a unidirectional connection transmitting driving, but not retarding, torques. Movement of plate 26 away from plate 25 is limited by a stop 27. Disc 23 is connected to the output shaft by a similar unidirectional connection which transmits retarding torques but not driving torque. It is arranged that the maximum retarding torque transmittable is less than the maximum driving torque, this may be effected by providing a friction-type torque limiting device between the disc 23 and the unidirectional connection, or by suitably choosing the material or the mean radius of the friction linings of the disc 23. In a modification, Fig. 2 (not shown), additional springs urge the plate 19 towards the abutment plate 15 so that the clamping force on disc 23 is less than that on disc 22. Instead of the centrifugal clutch and unidirectional drive devices shown, other conventional types of centrifugal clutch and free-wheel clutches may be employed.
Patent GB-185581-A (GB)
Title: Improvements in and relating to electric generating plants or systems
IPC: H02P9/00
Filed: 1921-07-20
Abstract: 185,581. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). July 20, 1921. Starting prime-movers, dynamo-electric machines and control circuits for.-The starting system for the prime mover of a self-contained lighting system comprises a dynamo-electric machine adapted to run as a compound wound motor and as a compound wound generator, the starting switch being divided into two parts one of which is electromagnetically maintained in its operated position while the other when released, after the prime-mover has started, changes the connection of the field in series with the load circuit. The operation of the starting switch removes a shortcircuit about the ignition circuit and cuts a resistance out of the shunt field circuit while running as a motor. The dynamo-electric machine 6, Fig. 1, is provided with a shunt field winding F' and a series field winding F the circuit of which is controlled by the arm 11 of the starting switch. When the push-button 32, Fig. 2, is operated, contact 22 engages contact 21 to connect the armature A of the machine 6 to a battery B through the series winding 13 of a retaining magnet 12, and the arm 11 engages contact 36 to complete the circuit of the series field winding F in such a manner that it assists the shunt field winding F@. The operation of the lever 23 carrying the contact 22 opens a short-circuit about the ignition at the switch 45, 45<a>. After the engine has started the button 32 is released when the arm 11 returns to the position shown in Fig. 1, thereby reversing the connections of the series field winding F and placing it in series with the load circu.t 5 in order that the machine 6 may run as a compound wound generator. When the arm 11 is in its operated position a contact on the arm bridges the contacts 42, 40 to short-circuit a resistance. R in the circuit of the shunt field winding F', and when the arm 11 returns to the position shown the resistance R is inserted in the circuit of the winding F'. The engine is stopped by depressing a push-button 48 which short-circuits the ignition circuit of the engine and the reverse current retaining magnet 12 releases the lever 23 to disconnect the machine 6 from the battery B.
Patent GB-1516593-A (GB)
Title: Camera shutter mechanism
IPC: G03B9/36
Filed: 1976-05-12
Abstract: 1516593 Camera shutter SEIKO KOKI KK 12 May 1976 [14 May 1975] 19547/76 Heading G2A A camera shutter has an opening member 4 for moving opening blades 3, a closing member 6 for moving closing blades (not shown), and a charge member 10 for charging the opening and closing members 4 and 6; the arrangement being such that after the opening member 4 has run off it holds the charge member 10 in position, and when the closing member 6 runs off the closing member 6 is in turn held by the charge member 10 to prevent rebound. As shown, the shutter is operable in automatic, manual and bulb modes. Automatic mode. A selection lever 29, (Fig. 2) is set to "A" to disable mechanical timing and bulb exposure levers 27, 28. Operation of release lever 19 frees a lever 18 which closes a flash synch contact 18b for lamps having a long delay and releases a hook 17 from a gear 16. Gear 16 rotates CW (clockwise) and this (a) rotates a wheel 20 CW to rotate a lever 24 CW and thereby free an armature lever 25, which however is held by an electromagnet 26. (b) releases a hook 22 to free a cam wheel 21 which opens contacts (33, 34) Fig. 5 (not shown) to start shutter timing. Cam wheel 21 also pushes a lever 23 which releases a hook 5 (Fig. 1). Release of hooks 5 enables closing member 4 to rotate CW and open the shutter. Towards the end of its movement, member 4 (a) turns charge member 10 to free a hook 12 and allow a contact lever 11 to close flash synch contacts 11d, 13 for lamps having a short delay. (b) holds charge member 10 in position by means of a pin 4f engaged in a recess 10b. After a timed period, the electromagnet 26 (Fig. 2) is de-energized, releasing armature lever 25 which pivots a hook 7 (Fig. 1) to free closing member 6. This closes the shutter and at the end of its movement abuts a stop pin 5c and is prevented from rebounding by engagement of a hook 6g with a cut-out 10d of charge member 10. Manual mode. Lever 29 (Fig. 2) is set to "M" In this case, armature lever 25 is held by a mechanical timing lever 27. When the opening member 4 (Fig. 1) completes its opening movement, it frees hook 12 as before and this hook shifts the mechanical timing lever 27 (Fig. 2) to free armature lever 25 which pivots hook 7, (Fig. 1) to free closing member 6 as before. Bulb mode. Lever 29 (Fig. 2) is set to "B". In this case, armature lever 25 is held by a bulb lever' 28 until the camera button is released (no mechanism for release of lever 28 is described). Shutter cocking. A cocking lever 8 (Fig. 1) is turned ACW to move charge member 10 which rotates the opening and closing members 4 and 6 into charged positions in which they are latched by hooks 5 and 7. The lever 8 or member 10 may have a rebound prevention arrangement (not shown) for the opening member 4.
Patent GB-193346-A (GB)
Title: Improvements in or relating to side tipping wagons
IPC: B61D9/04
Filed: 1922-07-18
Abstract: 193,346. Hudson, E., and Hudson, W. S. July 18, 1922. Tip-wagons.- The body trunnion of a tipwagon is mounted on a standard the path of which is bounded by a wall with a substantially straight top. The standard has a pocket portion a, the inner bed of which constitutes a path to receive the body trunnion. The standard is arched at e to receive a frame member, the arch merging into a pressed-out part g. A spring- pressed catch h normally holds the trunnion by a handle, and is shaped to hug the pocket a.
Patent GB-1462184-A (GB)
Title: Apparatus for producing a strip of synthetic resin material
IPC: B29C43/22
Filed: 1973-04-26
Abstract: 1462184 Forming synthetic resin strips; battery separators LUCAS BATTERIES Ltd 16 April 1974 [26 April 1973] 19822/73 Heading B5A Synthetic resin strips e.g. porous electric storage battery separators are produced in apparatus comprising a conveyer, a feeder having an outlet adjacent one surface of the conveyor, means to supply powdered resin to the feeder, a profiling roller to shape the powder on the conveyer into strips and means to close the feeder outlet. As shown, an endless conveyer 11 is supported on a drive roller 13 and a tension roller 12. A hopper 15 supplies pvc powder to feeder 14 via vibratory tray 16. Powder is fed from feeder outlet 17 under profiling roller 18 which forms it into strips. A gate 20 is hinged to wall 19 of feeder 14 movable between open and closed positions. Feeder 14 has an overspill chamber 22. A powder guide (not shown) extends through feeder 14 and under roller 18. Excess powder is removed by suction nozzles 23 or 24. Coveyer 11 also has a support roller 25 and a compression roller 26. Oven 27 comprises a radiant heating section 27a and a hot air convector section 27b and a conveyer preheating section 32. The strips are cooled by air cooler 28 and by water-spraying the underside of the conveyer. In an alternative embodiment, Fig. 3 (not shown) the feeder gate comprises a movable, resiliently-surfaced bar.
Patent GB-186745-A (GB)
Title: An improvement in concrete slab or block walls
IPC: E04B2/30
Filed: 1921-07-23
Abstract: 186,745. Rammage, A. W., and Pittaway, G. H. July 23,1921. Double walls.- A double slab or block wall is formed by placing the slabs against a permanent light wooden framework composed of verticals A and rails B, C, D. The framework acts as a guide only and carries no load. The bottom is set in concrete, and at the window and door openings the frame seals the cavity and is rendered with cement. A space E is left at the top of the wall and is sealed with concrete in which are set straps F to tie down the roof timbers. The slabs are secured by metal ties and the exterior is rendered in rough-cast cement or lime.