baber/WOPTO huggingface dataset:
Patent GB-386108-A (GB)
Title: Reinforced concrete pole
IPC: E04H12/12
Filed: 1931-12-21
Abstract: 386,108. Concrete posts. PFISTERSHAMMER, J., 5, Aussere Prinzregentenstrasse, Munich, Germany. Dec. 21, 1931, No. 35334. [Class 20 (i).] Reinforced conical concrete poles are formed from precast sections superposed, the reinforcement at the bottom of each section being left bare to fit over the externally exposed reinforcement at the top of the adjacent section, the joints being afterwards grouted. The reinforcement and finished sections are each of elliptic section and the reinforcement is slit at i so that the concrete binds firmly. Additional wire reinforcement may be passed through the slits. The exposed metal reimorcement c<1> of one section fits over the externally exposed reinforcement c<2> of the adjacent lower section, Fig. 7, and the reinforcement is dented at f and wrapped with wire k and grouting is then placed around the joint, grooves j being provided in the ends of the concrete of adjacent sections for binding the grouting. Upper sleeves g<1> and lower sleeves d<1> may be provided on the reinforcement to provide additional strength at the joint. The overlapping reinforcements may be provided with grooves at intervals which register to form hollows, the walls of which are slit at intervals to allow access of the concrete to these hollows. Alternatively, the overlapping reinforcements may be grooved and a clamping ring placed around the grooved portion to provide additional reinforcement and strength.
Patent GB-1150039-A (GB)
Title: Process for Preparing Silicic Acid Ester omega,omega'-Diamines
Inventor: KOTZSCH HANS JOACHIM
IPC: C08G77/62
Filed: 1967-08-01
Abstract: 1,150,039. Diamino derivatives of organosilicon compounds. DYNAMIT NOBEL A.G. 1 Aug., 1967 [8 Aug., 1966], No. 35386/67. Headings C3S and C3T. Diamino derivatives of silicic acid esters of the formula where R is a cycloalkyl or aryl radical, R<SP>1</SP> and R<SP>11</SP> each represent hydrogen or an alkyl, cycloalkyl or aryl radical, A is a dihydric phenol residue and m is 1 to 50, are prepared by reacting a pre-condensate of the formula where X is halogen, with ammonia and/or a primary aliphatic, cycloaliphatic or aromatic amine. Many examples of dihydric phenols are given, those used in the examples being resorcinol, p,p<SP>1</SP>-diphenol, hydroquinone and 2,2-bis- (4-hydroxyphenyl)-propane. Suitable amines are methyl-, ethyl-, isopropyl- and cyclohexylamines, aniline and toluidine. The reaction may be effected at temperatures of 20‹ to 80‹ C. in an inert solvent. The products are thermoplastic, suitable as hardeners for epoxy resins, additives to resins and lacquers and coatings on glass, minerals and metals.
Patent GB-1435165-A (GB)
Title: Hand knitting machines
IPC: D04B15/36
Filed: 1973-07-25
Abstract: 1435165 Knitting-machines AISIN SEIKI KK 25 July 1973 [31 July 1972 19 Aug 1972 18 Oct 1972 30 Jan 1973 (3)] 35425/73 Heading D1C A transfer lock for transferring loops between needles of the same bed comprises cams for: axially moving the needles; raising, and laterally flexing the needle extremities. In the embodiment shown the needles are moved axially by a series of cams 20. Loop transferring needle N1 follows path YX, while the loop receiving needle N2 follows path XX. The transferring needle is lifted over the receiving needle by plate 46 of a U-shaped cam 43. Plate 47 controls the extremity of needle N2, raising it as it is withdrawn to receive the loop. Needle N1 is flexed laterally when it strikes a rotatable wheel 41 or 42, or in another embodiment a fixed cam. As the lock is advanced needle butts 17 enter the appropriate tracks and are raised. Latch 9 of needle N. is held open by magnets 34, 35 and edges of cams 37, 39. When needle N1 is advanced by edge 26c, its extremity strikes wheel 41 which is freely rotatable, or positively rotated (Fig. 15 not shown), and is thereby flexed to cross the neighbouring receiving needle N2-Fig. 8(II). Needle N2 is projected by edge 24c and flexed slightly by the steep rise on plate 47 so that it enters the loop. The loop passes over the back of the latch of needle N1. When N2 is withdrawn to take the loop its butt passes down edge 26d in a portion P of the track of reduced height. The needle is thus flexed to raise its extremity and prevent escape of the loop. In modifications the latches are opened merely mechanically; the wheels are rotated by the passing needles; and the needles flexed by cams of shallower slope than the butt cams, acting on the extremities (Figs. 12, 15, 17 respectively, not shown).
Patent GB-303272-A (GB)
Title: Improvements in and relating to washers, scrubbers and the like for the treatment ofgravel and like materials
IPC: B03B5/56
Filed: 1927-12-31
Abstract: 303,272. Hodgson, C. G., and Millars' Machinery Co., Ltd. Dec. 31, 1927. Feeding-devices for granular and like materials. -Gravel &c. is fed to a washer 10 from a hopper 21 having a sliding bottom door 22 reciprocated by means of links 23, 24 and a crank 25 from a shaft 13.
Patent GB-619311-A (GB)
Title: Improvements in and relating to hinged seats and/or covers or lids for closets
IPC: A47K13/26
Filed: 1946-12-02
Abstract: 619,311. Closet seats. MOULDED PRODUCTS, Ltd., and IRELAND, H. W. F. Dec. 2, 1946, No. 35642. [Class 26] , [Also in Group XXV] In a closet seat 6 which is provided with lugs 11 encircling a hinge pin 9 on which a lug 10 of the cover or lid 8 is also mounted, the pin 9 is mounted in two-hinge posts 21 each having an aperture 22 for the pin and also an elongated slot 23, its narrow dimension being of such a size as to accommodate the hooked end 17 of bolt 16 provided with a washer 25 to enage the upper part of the closet bowl 15 and another washer 26 to engage the underside of the top of the bowl. The bolt 16 can be turned into one or other of the positions shown in Fig. 3, so that the seat can be moved the distance marked D and is then clamped in the desired position by the nut 19 on the screwed end 18 of the bolt. The lugs 10, 11 may be provided with threaded apertures for set screws such as 12 which engage grooves 13 in the pin 9.
Patent GB-1310423-A (GB)
Title: Duct expansion joint
IPC: F16L51/02
Filed: 1970-07-23
Abstract: 1310423 Expansion joints JOHNS - MANVILLE CORP 23 July 1970 [24 July 1969] 35656/70 Headings F2G and F2P A duct expansion joint for interconnecting flanged ends of adjacent ducts comprises a tubular connector formed from flexible fabric sheet material such that the tubular connector may be folded to a substantially flat form and then unfolded to be positioned between said ducts, said tubular connector having bendable  terminal end portions adapted to be folded back to form flanged portions for mating directly with the flanges of the adjacent ducts, said bendable terminal portions when folded back to form flanged portions being continuous in a circumferential direction and lying in a plane transverse to the longitudinal axis of said connector, and means for securing said tubular connector through its folded back flanged portions to said flanged ends of said ducts. The connector may be formed from a plurality of side members A, B, C, D (Fig. IIB) (Also Figs. IA, IB, IC, ID, (not shown) cut from flexible flat fabric and joined at the ends 9, 9<SP>1</SP>, 10, 10<SP>1</SP>, 11, 11<SP>1</SP>, 12, 12<SP>1</SP>. Reinforcement boots at the joins are optional. The edges of members A-D are folded back to form flanges 33, 34 which are rendered continuous and leakfree by the attachment of corner pieces (Fig.. IIIA), the arms 17, 18 of which are flush with the flange faces (Fig. IIB). The tails 16 of the corner pieces are secured along the inside of the joins. Alternatively two corner pieces may be incorporated into a single piece by making the tail 16 common to both (Fig. IIIC, not shown), the tail being secured along the whole length of the join. In a further alternative embodiment the edges of a flat strip (45) (Fig. IIID, not shown) may be cut perpendicularly to the length of the strip at points (46) corresponding to the corner of the connector, the ends (51), (511) of the strip being joined to form a continuous band and the edges being turned out as before. Slightly modified corner pieces similar to those in Figs. IIIA or IIIC are used. The connector may be reinforced at the joins by flexible strips (71) (Fig. 5, not shown) or (52) (Fig. IIIF, not shown).  The connectors are secured to ducts 63<SP>1</SP> (Fig. IVB) by bolts bearing on a packing strip 67 to ensure an adequate seal. Materials.-Rubberized fabric (e.g. neopreneasbestos cloth); glass cloth; wire mesh cloth. The corner pieces may be secured by neoprene cement.
Patent GB-760132-A (GB)
Title: Improvements relating to forging methods and apparatus therefor
Inventor: NIXON FRANK
IPC: B21K3/04
Filed: 1953-12-22
Abstract: 760,132. Forging. ROLLS-ROYCE, Ltd., and DONCASTER & SONS, Ltd., D. Dec. 22, 1954 [Dec. 22, 1953], No. 35668/53. Classes 83(2) and 83 (4). Making compressor blades.-A method of forging engineering parts, particularly thinsection compressor blades, comprises heating a forging blank 18 to forging temperature and locating the blank on resilient supports 14 between forging dies 10, 12, whereby the blank is suspended out of contact with the die surfaces prior to the application of forging pressure, said supports yielding to allow the blank to come into pressure contact with the stationary die 10 on application of forging pressure by the moving die, 12. The blades are preferably made of ferrous metal, aluminium, titanium and aluminium, or titanium and nickel-chromium alloys. Rod extensions 19, preferably of inferior metal, are welded to the blank and rest in the supports 14. Alternatively, extensions may be formed integrally with the blank. An end stop 20 is provided for locating the blank axially, and for this purpose the adjacent rod 19 is preferably machined to the correct length. The rods 19 are removed after the forging operation. By supporting the heated blank out of contact with the die surfaces, transfer of heat from the blank to the dies prior to forging is prevented.
Patent GB-454064-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1935-12-24
Abstract: 454,064. View-finders and telemeters for photographic cameras. LEITZ GES., E., Optical Works, Wetzlar, Germany. Dec. 24, 1935, Nos. 35696 and 35697. Convention dates, Jan. 31 and Nov. 11. Addition to 454,063. [Class 98 (i)] In a photographic camera, a short-homebase telemeter is combined with a view-finder comprising a concave reflector in the form of an opaque or nearly opaque frame surrounding a transparent area through which the telemeter rays can pass to the viewing opening, the reflecting frame being such as to reproduce substantially at infinity a frame-like mark surrounding the image field adjacent to the viewing opening. As shown, the camera J has a casing K containing the telemeter and a casing H containing the view-finder. The telemeter comprises a movable reflecting prism A operated through the lever A<1> by the objective focusing mechanism. The other reflecting surface B is formed by cementing two glass plates G, G<1> together, with semi-transparent silvering extending over a small central rectangular portion of the dividing surface. The two parts G, G<1> may, instead of being cemented together, be separated by a small air gap. The view finder comprises a spherically curved glass plate E<1> having a rectangular silvered portion E surrounding a transparent area E<2> and reproducing substantially at infinity an opaque rectangular mark C<2> on a glass plate C, the central portion C<1> of which constitutes the viewing opening. The mark C<2> is illuminated by windows H<1>. The casing H or a combined casing for the telemeter and view-finder, may be detachable from the camera. The plate C may bear a number of rectangular marks C<2> corresponding to different camera objectives. In a modification, the concave reflector may be located across the telemeter base, and the view -finder provided with an eyepiece and objective.
Patent GB-1019867-A (GB)
Title: Improvements in or relating to coupling hooks
IPC: B66C1/34
Filed: 1964-09-01
Abstract: 1,019,867. Hooks. MO OCH DOMSJO A.B. Sept. 1, 1964 [Sept. 23, 1963], No. 35757/64. Heading F2H. Two identical sister hooks 1, each with a pair of lugs 7, are pivoted together on a pin 3 (with the lugs interdigitated) so that when the hooks are swung together, flat faces 4 engage each other and a load cable of a winch, crane or tractor is completely encircled. Each hook 1 has a recess 8 adjacent each pair of lugs 7 and the two recesses are aligned for a cable 9, e.g. attached to a log, timber &c., to pass through for securement to the pair of hooks. The cable 9 tends to close the hooks together on no load and an end stop on the cable forces them together on load. The outer faces 5 of the hooks may be completely curved, or only at their inner edges. On each hook, the lug 7 nearer the hook opening 6 may be wider than the other. A number of hooks each attached to a load by a cable 9 may be latched side-by-side on a load cable attached to a winch, crane or tractor, e.g. for use in forestry. A load cable may be secured in the recesses 8 and the hooks encircle the cable elsewhere, to form a lasso loop to enclose a bundle of timber without the use of separate cables 9. The width of the hook openings is 1.2 -1.5 times the load cable diameter and the diameter of the ring formed by the closed hooks is not more than 2.5 times that diameter.
Patent GB-1277649-A (GB)
Title: Circuit arrangement
Inventor: WATROUS DONALD LELAND
IPC: H02P25/04
Filed: 1969-07-16
Abstract: 1277649 Control of AC motors GENERAL ELECTRIC CO 16 July 1969 [9 Aug 1968] 35800/69 Heading H2J A single-phase motor 10 is connected in series with a triac 11 or the like which receives gating pulses from a monolithic integrated phase control circuit 17 deriving its power from RC network 18, 19. The output from diode bridge rectifier 22 is clipped by a Zener diode 23, a control signal supplied to a ramp and pedestal circuit 27 determining the voltage applied to a timing capacitor 26, thereby adjusting the phase angle of the gating signal. When the timing capacitor voltage exceeds a reference voltage from source 30, an output signal from differential amplifier gates a switch 31. The capacitor 19 then discharges and renders the triac 11 conductive. The period of phase angle delay for turning-on the switch 31 starts when the  capacitor 19 passes through the zero voltage  point, a transistor 32 conducting at this instant to discharge the capacitor 26. Circuit 34 inhibits the amplifier 29 when the triac 11 is conducting. The operation of the motor is stabilized by ensuring equal conduction periods of the triac from cycle to cycle, and equal phase angles at which the triac is rendered conductive. For this purpose, degenerative feedback is provided by a circuit comprising resistor 40 between points d and c, the capacitor 19 being charged through both resistors 18 and 40. When the period of conduction of the triac 11 tends to deviate from an average value, the charging current through the feedback path varies to increase or decrease the lead of the zero-voltage crossing-point of the capacitor 19 with respect to the supply potential, thus stabilizing the waveform of the triac voltage. In another arrangement, the timing circuit comprises a fixed resistor in series with a variable resistor and a capacitor, the voltage at the junction between the resistors being clamped by a pair of back-to-back Zener diodes. The gating switch is a diac associated with a feedback resistor, Fig. 4 (not shown). In a further embodiment, a single adjustable resistor sets the triggering phase angle, Fig. 5 (not shown). The motor may be of the polyphase induction type.
Patent GB-780172-A (GB)
Title: Improvements in or relating to electrical circuits
Filed: 1954-12-10
Abstract: 780,172. Control systems for consumption apparatus. LINK AVIATION, Inc. Dec. 10, 1954 [Dec. 11, 1953], No. 35859/54. Class 38 (4). The current in a load R1 is accurately controlled in accordance with the setting of a potentiometer 2, 3, directly connected thereto, by an amplifier 8 which is driven from the potentiometer and which feeds to the load a current equal to that which would flow from a low impedance source having a voltage equal to that which would obtain at the tapping 2 in the absence of the load connection. The potentiometer is thus, in effect, electrically isolated from the load. In the A.C. arrangement shown the amplifier comprises a cathode-follower tube 7 driven through a condenser 6 and having an output transformer 11 which feeds the load through an impedance 4 of such a magnitude as to establish the correct current in the load. In the case of a variable load, the impedance 4 must be capable of corresponding variation. A variable high gain D.C. amplifier may be employed when the potentiometer is energized from a D.C. source.
Patent GB-959030-A (GB)
Title: Improvements relating to concrete products
IPC: C04B41/48
Filed: 1960-10-20
Abstract: A process for the production of a composite structure or for the repair of a structure wherein a mass of fresh cement concrete mix and a mass of uncured synthetic resin mix based on a hardenable ethoxylin resin and a hardener, more especially an amine-amide prepared from monomeric or epoxidised unsaturated fatty acid or fatty acid ester by reaction with a polyamine, are caused to harden in contact with one another. The resin composition may consist of 7 parts of epoxy resin prepared by reaction of bisphenol A with epichlorhydrin and 3 parts of amine-amide prepared by reaction of the oleic acid with tetraethylene pentamine. Alternatively, the amine-amide may be prepared by reaction of tall oil fatty acid with tetraethylene pentamine, and 0.5 part of tri-(dimethylaminomethyl)-phenol is introduced. In other examples the amine-amide consists of tetraethylene pentamine; bisimidazoline prepared from polymeric fatty acid reacted with triethylene tetramine at 300 DEG C.; and the product of a reaction of epoxidised oleic acid with tetraethylene pentamine. The resin compositions contain sand as a filler, and may include wear resisting material such as corundum.
Patent GB-789729-A (GB)
Title: Connector means for permitting fluid flow to or from a container
IPC: F16L37/40
Filed: 1954-12-14
Abstract: 789,729. Tapping casks; venting-apparatus. LEWIS, E. C., and ALUMASC, Ltd., March 24, 1955 [Dec. 14, 1954], No. 36085/54. Class 21. [Also in Group XXVIII] A connecting piece F, Fig. 1, for tapping beer casks &c. comprises a frame 2 adapted to have a sliding retentive engagement with the exterior of a member V, Fig. 3, in the cask 12, and an adjustable body 1 in the frame 2 adapted to be forced against a part 3 of the member V to effect fluid tight communication between aligned ports in the body 1 and the part 3. As shown the frame 2 has lugs 25 and stops 26 cooperating with grooves 29, Fig. 5, in the part 3 so that it may slide into correct axial alignment with said part 3 whereafter a handle 4 is depressed to cause ports 5 and 6, Fig. 8, to seal against ports 7 and 8 in the part 3, the handle 4 being finally rotated relatively to the body 1 to cause a locking action in this position by cam means 33, 34, Fig. 1. The ports 7 and 8 may have spring biassed valves 9 and 10 depressed to an open position, Fig. 8, when the connecting piece F is in position. One pair of aligned ports 5 and 7 may be used for the passage of a liquid, the port 7 having an extension 49 terminating near the opposite face or side of the cask &c. and the other pair of aligned ports 6 and 8 may be used as a vent opening or as a passage for a compressed gas. The ports may also be used for the entry and exit of steam. Specification 789,730 is referred to.
Patent GB-1516881-A (GB)
Title: Optoelectronic scanning system for dimensional gauging of parts
IPC: G07C3/14
Filed: 1975-09-02
Abstract: 1516881 Dimensional gauging SOC SUISSE POUR L'INDUSTRIE HORLOGERE (SSIH) MANAGEMENT SERVICES S A 2 Sept 1975 [9 Sept 1974] 36108/75 Heading G1A A system arranged for the determination of the co-ordinates of certain points on articles comprises an optical projection 1, 2, 7 arranged to form an image 10 of the outline of an article 3 on the lightsensitive face of an opto-electronic scanner 11 in which the scan path is limited to the neighbourhood of the parts of the outline on which these points lie and means for determining the co-ordinates of the points from video signals from the scanner. Via semi-reflecting plate 6 or a beam-splitter cube scanner 11 receives an image of grid 48 alternately with the outline image. The output of amplifier 15 and wave-shaper 16 contains signals which are generated by the scan crossing the outline edge or the grid lines of which gate pulses from clock 17 via circuit 28, which controls the angle of scan, to 'X' and 'Y' counters 26, 27 and digital to analogue converters 24, 25 feeding 'X' and 'Y' summing amplifiers 20, 21, which also receive, via digital to analogue converters 32, 23 from computer controlled storage registers 31, 22, voltages indicating X and Y starting positions. The voltage from 20, 21 controls X and Y scan drivers 18, 19 to drive the scan towards the object's edge, upon reaching which a read-out is commanded from counters 26, 27 and supplied through #X and #Y co-ordinate data registers 29, 30 to the computer. Calibration is by scanning the grid so that counters 26, 27 read out the numbers counted between adjacent grid lines and storing the second differences as calibration corrections. If the process is repeated the correction converges and the correction numbers are stored in the computer for scan linearization in subsequent measurements. Interpolation for positions between the lines is used. The system may be applied to moving or incorrectly orientated objects.