baber/WOPTO huggingface dataset:
Patent GB-774277-A (GB)
Title: Interference polarizing device for study of phase objects
IPC: G02B21/14
Filed: 1953-05-13
Abstract: 774,277. Optical apparatus. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. May 13, 1953 [May 14, 1952], No. 13449/53. Class 97(1) A microscope system comprising a light source, a diaphragm, a condenser, a support for a phase object and an objective is combined with an interference polarizing device comprising two plane polarizers with their planes of polarization relatively inclined and between them at least a main birefringent wedge of non-uniform thickness located at or adjacent the plane in which the microscope system produces an image of the diaphragm, the interference fringes being localized at said image, whereby the object is made visible. The main wedge may be circular with its greatest thickness at the centre and the diaphragm may be omitted. As shown in Fig. 1 the image of a slot 5 is formed in the rear focal plane of objective O, by condenser C and objective O at the binefringent wedge Q before which is a polarzer P<SP>1</SP>. A compensator K formed of two relatively movable wedges is provided to compensate the birefringence at the centre of the plate Q and a polarizer P<SP>2</SP> crossed with respect to polarizer P<SP>1</SP> is provided before the eyepiece. In a modification the slot 5 is circular and the plate Q has one face spherical. In the modification shown in Fig. 3 the diaphragm is replaced by two quartz plates q<SP>1</SP>, q<SP>1</SP> with curved surfaces relatively movable to the equivalent to a prismatic plate of variable dihedral angle. The plote Q is formed of two plates Q<SP>1</SP>, Q<SP>2</SP> with perpendicular optic axes to provide compensation of the birefringence at the centre. Where the slit image is found within the objective O the plate Q<SP>2</SP> may have its optic axis inclined to that of the plate Q<SP>1</SP> to displace the fringe system to the said slit image. The arrangement shown in Fig. 7 may be used to test the accuracy of a spherical mirror M the birefringent wedge Q being placed at the centre of curvature of the mirror and an image of the source S being formed thereat by a condenser C the resulting image of the mirror being viewed directly or photographed by an objective O. If the mirror M has no errors the space between the mirror M and wedge Q may be used for studying the strictions of gaseous or liquid bodies. Alternatively the mirror M may be replaced by a plane mirror or by an object to be examined in reflected light. The system may be applied to a microscope employing a reflecting objective.
Patent GB-292747-A (GB)
Title: Memorandum appliance
IPC: B42D19/00
Filed: 1927-05-19
Abstract: 292,747. Doboi, J. May 19, 1927. Roll holders and cases; boxes combined with roll holders.-A memorandum appliance adapted for use as a cigarette case, purse, powder-box, &c. comprises a flat case of metal, tortoiseshell &c. with upper and lower portions 3 hinged together at one side and provided with an aperture 5 in the upper portions to expose a paper strip d which is fed between rollers b, c journaled within slots 4 in the sides of compartments 2<a> formed at the ends of a removable tray-like member 2 enclosed within the case, the central portion 2<b> of the member 2 being pressed upwardly to form a receptacle for the cigarettes &c. The portion 2<b> of the member 2 is disposed beneath the aperture 5 and provides a flat supporting surface for the paper strip, a hinged plate 7 preferably being provided for covering the aperture when the appliance its not in use. The rollers b, c are operated by discs secured thereon and extending through slats in the upper and lower portions of the case and the strip is tensioned over the writing-surface by blade, springs 6 which press the paper rolls against the top of the case.
Patent GB-1081003-A (GB)
Title: A toy gun
IPC: F41B11/02
Filed: 1965-03-31
Abstract: 1,081,003. Toy guns. KENNER PRODUCTS CO. March 31, 1965 [Dec. 23, 1964], No. 13546/65. Heading A6S. A toy gun has barrel and trigger sections hingedly connected to each other and can be fired regardless of the relative angular positions of said barrel and trigger sections. The barrel section has a magazine 21 in which balls 34 may be loaded through an aperture 26 upon withdrawal of a spring plunger 28. Balls are loaded into the firing chamber 54 by pulling down a plunger 51 to its fullest extent and then releasing same. The gun is fired by compressed air produced by a plunger 95 when released by a trigger 122. The two sections of the gun pivot about a tubular rivet 80 and boss 66 through which the compressed air passes. The gun is sighted by means of a mirror 135 mounted above the axis of pivotation of the two sections, the mirror being moved by a two to one gearing as the sections are relatively moved, whereby the mirror is always perpendicular to a line bisecting the angle between the said two sections.
Patent GB-584394-A (GB)
Title: A vegetable glue and process of preparing it
IPC: C09J105/14
Filed: 1944-07-19
Abstract: An adhesive suitable for use in plywood manufacture and as a paint binder, for labels and paper hangings, and for sizing paper is made by the addition of sufficient aqueous solution of an alkali (including ammonium) hydroxide, an alkaline reacting alkali metal salt such as the carbonate, silicate or secondary orthophosphate, or an alkaline earth hydroxide to finely comminuted carob germs and water to give pH 9 or over.  The adhesive may be mixed with other adhesives such as casein or bone or hide glue, with substances which increase the spreading capacity, e.g., china clay, and with substances which increase the water resistance, e.g., colophony or valonea extract.
Patent GB-1210269-A (GB)
Title: Production of 4,6-pyrimidyl diethers and dithioethers
IPC: C07D239/52
Filed: 1968-03-22
Abstract: 1,210,269. 4,6-Pyrimidyl diethers and dithioethers. BADISCHE ANILIN- & SODAFABRIK A.G. 22 March, 1968 [25 March, 1967], No. 13871/68. Heading C2C. [Also in Division C4] 4,6-Pyrimidyl diethers or dithioethers which bear a substituent in the 2- and 5-positions are prepared by reacting a malonimidic or malonimidothioic diester respectively with an acylating agent. Of these compounds claimed per se are compounds of the general formula in which R<SP>1</SP> denotes H, an aliphatic radical, aliphatic- or aromatic-substituted hydroxy or mercapto group, an aliphatic- or aromatic-, mono- or di-substituted amino group, or an N-heterocyclic amino group, R<SP>2</SP> denotes an aliphatic or aromatic radical, X denotes O or S and R<SP>3</SP> denotes a substituent such that R<SP>3</SP>CO- denotes the acyl radical of an acylating agent, but excluding those compounds in which R<SP>2</SP> denotes a methyl radical, X denotes an O atom, and either R<SP>1</SP> denotes H and R<SP>3</SP> denotes methyl, propyl or C 2 H 5 OOCCOCH 2 - or R<SP>1</SP> denotes an ethyl radical and R<SP>3</SP> denotes a S atom, R<SP>1</SP> denotes H or a methyl or ethyl radical and R<SP>3</SP> denotes a methyl or ethyl radical. Preferred acylating agents include carboxylic chlorides and bromides, simple and mixed carboxylic anhydrides having e.g. carbamic acid hemiester as one component, azides, acylpyridinium salts, esters, ketenes, thioesters, N- phthaloylamides, isocyanates and phosgene. The process may be carried out using a salt of the malonimidic or malonimidothioic ester and liberating the free compound by addition of a base. The reaction is preferably carried out in the presence of a base, an inert organic solvent and at a temperature between -30‹ C. and + 100‹ C.
Patent GB-119279-A (GB)
Title: Improvements relating to Metal Electrodes used in Depositing and Soldering by the Electric Arc.
Inventor: JONES ERNEST HENRY
IPC: B23K35/02
Filed: 1917-09-26
Abstract: 119,279. Jones, E. H. Sept. 26, 1917. Addition to 14468/15. Hcating by electricity. - An electrode for arc soldering or deposition of metal consists of a rod of metal other than mild steel, e.g. cast iron, electroplated with nickel or other metal.
Patent GB-169212-A (GB)
Title: Improved building unit and method of constructing buildings therewith
IPC: E04B2/42
Filed: 1920-05-21
Abstract: 169,212. Roberts, E. W., and Leese, L. F. W. May 21, 1920. Building-blocks, special shapes of.-Walls are formed of units of storey height and having parallel faces a, Fig. 1, united at intervals by transverse webs b forming a plurality of cells a<1>. The units are recessed to fit on channel-shaped sills d, e, Fig. 4, having openings registering with the cells. The sills are filled with fine concrete and the cells with coarse concrete, and the ends of the wall units are grooved to form pockets f for cement grouting and felt or other packing g. The units and sills are moulded from a. mixture of cement and asbestos or like fibre. Door and window openings are lined with frames consisting of mitred lengths l, Figs. 13 and 15, of fibro-cement sheeting held together by ties k. According to the Provisional Specification, Z- shaped story-high units may be used instead of those shown in Fig. 1.
Patent GB-1278651-A (GB)
Title: Preparation of lactones
IPC: C07D315/00
Filed: 1969-03-18
Abstract: 1278651 Coated paper MOBIL OIL CORP 18 March 1969 [20 March 1968] 14086/69 Heading B2E [Also in Divisions C2 C3 and C5] Paper is coated with a mixture of a wax and a y-butyrolactone substituted in the y-position by a C 18-20  alkyl group, using a hot melt technique. Reference has been directed by the Comptroller to Specification 1219331.
Patent GB-312481-A (GB)
Title: Improvements relating to differential gearing
IPC: F16H48/08
Filed: 1928-05-14
Abstract: 312,481. Roff, E. W. May 14, 1928. Differential or balance gearing suitable for heavy motor-vehicles comprises an arrangement of bevel-gearing which may be readily substituted for a differential of the parallel or interengaging spur type. The gearing is carried by a rotary casing comprising end plates 1, 2, which may be the end plates of the other type referred to. Between the plates 1, 2 are clamped abutting ring members 4, 5 which co-operate at the joint to form bearings 6 for the spider arms 7 upon which the planets 8 are adapted to turn. The abutting edges of the ring members 4, 5 form a spigot joint 9. The driving crown 11 is clamped between a ring member 4 and an end plate 1 and is recessed into each. The spider 15 is socketed at 16 over the bosses of the side gears 18 of the differential. Within the bore 28 of the spider 15 and between the ends of the part-axles 24 is a reservoir for oil which escapes through radial passages 27.
Patent GB-794736-A (GB)
Title: Improvements in or relating to vehicle handling mules
IPC: B61J3/08
Filed: 1955-05-16
Abstract: 794,736. Propelling rail vehicles. MITCHELL, F. G. May 16, 1956 [May 16, 1955], No. 14097/55. Class 104 (2). A vehicle handling mule comprises a carriage movable on rails set within the gauge of a railway track and having a linkage connected to a pusher assembly for a vehicle, the linkage when engaging a track stop raises the pusher assembly and when cammed over the track stop acts as a strut to maintain the pusher assembly elevated. A pair of pusher arms 6 with stepped blocks 7 for engaging the headstock of a vehicle are pivoted at 5 to a carriage 1 which is hauled along tracks 3 set within a standard gauge rail track by means of cable 11, 12. Each arm 6 has pivoted thereto a link 14 the other ends of the links being joined by a roller 15 which raises the arms 6 when the roller strikes a track stop 17. The roller is guided along horizontal and inclined parts 21, 22 and into an indentation 23 of a cam plate 16 which is secured on the carriage and maintains the arms 6 in raised position. Each link is secured by a pin 24 on the link which lifts latch bars 25 pivoted at 5 to the carriage before the latch or bars engage with the pins. Hooked parts 26 on the links engage stops 27 on the arms 6. The arms are lowered when the carriage is moved rearwardly and a roller carried at the lower ends of a pair of links 32 pivoted on the carriage strikes a track stop 31. The links 32 are pivoted to abutment arms 35 comprising a horizontal part 41 having a roller 42 running on cam plates 43 and an inclined part with rollers 44 which contact the latch bars 25 and lift them to disengage the pin 24. The ends of the abutment arms 35 engage projections 45 on the links 14 to move the roller 15 down the inclined part 22 of the cam plates 16, the pusher arms lowering under their own weight.
Patent GB-369064-A (GB)
Title: Improved means for moulding butter
IPC: A01J21/00
Filed: 1931-05-13
Abstract: 369,064. Moulding butter. DOPHEIDE, L., Reher, Hameln, Germany. May 13, 1931, No. 14194. Convention date, Aug. 2, 1930. [Class 87 (ii).] A butter moulding machine comprises a mould a rotatably mounted on a table e by a hinge c, a lever l carrying a press-plate m and mounted on an axis k at right-angles to the hinge c, and a delivery board o on to which the butter is ejected when the mould a is inverted by being swung over to the position shown in Fig. 5. The board o is positioned by brackets d and adjustable blocks q, the rear block q<1> having a rubber insertion s to deaden the impact of the mould a. A sheet of wrapping paper is placed on the board o before moulding.
Patent GB-1123652-A (GB)
Title: Improvements in or relating to a compacting road roller assembly
IPC: E01C19/28
Filed: 1967-03-29
Abstract: 1,123,652. Motor road rollers. RICHIER. 29 March, 1967 [30 March, 1966], No. 14196/67. Heading B7H. A pedestrian controlled road roller comprises front and rear sections 1 and 2 connected by a coupling comprising horizontal and vertical spindles 8 and 9. Steering may be effected through an hydraulic piston 11 connected by universal joints 12, 14, between the sections. An engine 15 is mounted on the section 1 and drives one or more hydraulic pumps 16 from which hydraulic motors 17 are driven, the drives to the rollers from the latter including belt and pulley drives 18, 19, 20 and meshing gears 20 and 21. A vibrator in each section comprises an unbalanced shaft concentric with the roller, that, 5, in the section 1 being driven through a belt 24 and pulleys 23 and 25. The drive to the vibrator 6 in the section 2 comprises bevel gears 26 driven by the pulley 25, a telescopic shaft 28 having cardan joints 27, 29 and bevel gears 30 which may, for reverse direction drive, occupy the broken line position, and may be of a different diameter from bevel 26.
Patent GB-604517-A (GB)
Title: Improvements in or relating to cartons suitable for use in packing a toothbrush
IPC: B65D5/02
Filed: 1945-06-05
Abstract: 604,517. Boxes. CLELAND, Ltd., W. W., and BUCHMAN, A. A. June 5, 1945, No. 14197. [Class 18] A carton for a toothbrush has a window 9, covered by transparent material, extending across two contiguous sides near one end so that the head of the brush can be inspected from two adjacent sides. To permit movement of the brush relatively to the window, the carton has an inwardly directed loop 13 which leaves a portion of the handle accessible outside the carton. The carton is made from a blank of cardboard or like material scored to form side walls 1, 2, 3, 4, a securing flap 5 and end flaps 8. Each of the strips 1, 4 has an extension flap 6 with a tuck-in end 7 and the strip 4 has transverse cuts 14, 15 which extend into adjacent sides to form the loop 13. The strips 2, 3 may slope at both ends, as shown, or at the upper ends only. The cartons may be displayed in a case with inwardly folded flaps 19, Fig. 7, which adjustably support them in a position raised from the bottom of the case. Fig. 5 shows a case comprising two hinged sections made from a single blank of cardboard or the like, Fig. 8, scored to provide side and end walls 22, 23 and bottom flaps 24, the flaps 19 being slit so that, when inwardly bent, portions thereof are left in the same planes as the sides to form a display panel 20 and hangers 21.
Patent GB-1057356-A (GB)
Title: Controlled-velocity drive
IPC: H02P29/00
Filed: 1965-04-05
Abstract: 1,057,356. Automatic speed control. EATON VALE & TOWNE Inc. April 5, 1965 [April 22, 1964], No. 14378/65. Heading G3R. In a system for automatically controlling the speed of a member driven through an electromagnetic coupling, the energization of the latter is supplied through a solid state switching device controlled by signals corresponding to a reference speed, the actual speed, and the current supplied, the latter signal being applied directly and through a delay circuit as positive feedback. As described, the speed of a shaft driven through an eddy current clutch is measured by a tachometer alternator the output of which is rectified and compared with an adjustable reference voltage. Any difference, representing a speed error, is applied through a transistor amplifier to control the charging rate of a capacitor associated with a trigger circuit so that the mark-space ratio of the trigger circuit output is varied. This output is applied to control a half-wave or full-wave silicon controlled rectifier energizing the clutch winding so that the speed of the shaft is corrected. A resistor in series with the clutch winding develops a voltage, dependent on the energization current, which is applied as adjustable negative feedback to the transistor amplifier and is also applied as positive feedback through a resistancecondenser delay network to a second polarityreversing transistor associated with the transistor amplifier. The two transistors are matched and share a common heat sink to eliminate the effect of temperature variations. Temperature compensation, limiting, filtering, smoothing and protection is also provided elsewhere in the circuit. Adjustable potentiometers are provided for setting maximum and minimum speed limits. A push button switch may be operated in one manner to actuate a relay which energizes the clutch momentarily through the silicon controlled rectifier for inching, or in another manner to make the relay self-holding so that the speed control system is effective until a stop button is operated. A further transistor circuit may be provided to permit a smaller capacitor to be used for the delay network in the positive feedback circuit.
Patent GB-762529-A (GB)
Title: Improvements in or relating to books, albums and the like
IPC: B42D3/12
Filed: 1954-05-17
Abstract: 762,529. Musical boxes. WRIGHT, Ltd., D., and WRIGHT, D. P. May 10, 1955 [May 17, 1954], No. 14441/54. Class 88 (1). [Also in Group XV] A musical box 25 is interposed between the spine 13 and the adjacent edges of the pages 42 of a book and operates when the book is opened. The musical box is secured to a resonance plate 38 with a dependent flange 39 secured at one end of a box 21. This box is riveted to the spine 13 and has a hinged lid 22 with a cut-out part 24. The musical box is controlled by a lever 29 having at one end a pin 32 biased upwards by a spring and projecting through a hole 33 in the lid so as to be depressed by the first cover 11 when closed, the other end being then moved into a position where it obstructs rotation of an air-vane governor 28.
Patent GB-488391-A (GB)
Title: Improvements in and relating to infusion apparatus for making tea and like beverages
IPC: A47G19/14
Filed: 1937-05-25
Abstract: 488,391. Teapots. JOSEPH, Ltd., N. C., and JOSEPH, B. C. May 25, 1937, No. 14455. [Class 129] The lid 8 of a teapot has a deep cylindrical flange 9 which fits around a neck portion 2 of a teapot and bears on a shoulder on the teapot ; the neck portion has an inwardly and upwardly extending portion 3 with an outwardly beaded edge 4 forming a support for an infuser 5 which is made as a metal spinning with a cylindrical upper portion 6 and an outwardly projecting bead 7 by which it rests on the beaded edge 4 of the teapot mouth.
Patent GB-1067584-A (GB)
Title: Photographic camera with an interchangeable objective
Inventor: STREHLE HORST
IPC: G03B9/07
Filed: 1964-04-08
Abstract: 1,067,584. Photographic cameras. PENTACON DRESDEN KAMERA - und KINOWERKE, VEB. April 8, 1964, No. 14463/64. Heading G2A. A photographic camera having an interchangeable objective is provided within the camera housing with a setting lever 5 and a setting rocker 12 while the objective comprises a setting plunger 41 coupled with a diaphragm blade ring 31 and a setting pin 36 coupled with a stop 35 for the blade ring, the plunger 41 and the pin 36 being adapted to be coupled with the lever 5 and the rocker 12. In the embodiment of Figs. 1 and 2, the rocker 12 is coupled with a diaphragmsetting member 19 on the camera. On screwing the objective 3 into position the plunger 41 and the pin 36 slide over a setting surface 6 of the lever 5 and the rocker 12 respectively. The time exposure is set by a member 27 which transmits movement to a totalizing rocker 22. On rotation of the member 19 a cam surface 18 thereof turns a lever 15 about a pivot 16 so as to displace axially a plunger 14 against the rocker 12 and also to pivot a bell-crank lever 20 which transmits its movement to the totalizing rocker 22. The correct diaphragm exposure is set when a follow-up pointer 43, which is connected to the totalizing rocker 22, coincides with a pointer 45 of a measuring mechanism 44. As the plunger 14 moves the rocker 12 the pin 36 is displaced axially and so alters the position of the stop 35. Operation of the release button 11 advances the lever 5 and hence the plunger 41 which by means of a setting arm 38 rotates the blade ring 31 against the action of a spring 33 until a lug 34 of the blade ring 31 encounters the stop 35. In a second embodiment, Figs. 3, 4 (not shown), the stop (57) is provided on a diaphragm setting member (55) rotatably mounted on the objective (3). Rotation of member (55) causes a cam surface (54) of the stop (57) to displace axially the pin (36) against the rocker (12) and thus transmit movement to the totalizing rocker (22).
Patent GB-215599-A (GB)
Title: Improvements in respiratory apparatus
IPC: A62B7/10
Filed: 1923-06-01
Abstract: 215,599. Shields, T., (Mine Safety Appliances Co.). June 1, 1923. Air-meters.-In order to measure the amount of air consumed by the user of a respiratory appliance, the air drawn in at the inlet 50 acts on propeller vanes 52 to rotate a spindle 51, the rotation of the spindle actuating an indicator 53 through a suitable arrangement of reducing gears.
Patent GB-252549-A (GB)
Title: Improvements in multiplying gear particularly for use in gunnery calculating apparatus
IPC: G06G3/00
Filed: 1925-06-05
Abstract: 252,549. Barr & Stroud, Ltd., and French, J. W. June 4, 1925. Gunnery calculators.-The multiplying-gear described in Specification 189,870 for evaluating p tan #, is modified in the following particulars. The uppermost position of bar 52 may be equivalent to the zero value of tan # and in order therefore that the long pinion 49 may not be moved with the variations in the other factor p its teeth are helical, as shown, and the teeth of the rack carried by the cross-bar 46 are inclined to correspond. The screws 36, 43 and 44 may be of non- uniform pitch e.g. logarithmic. The bar 52 may be prolonged to the left beyond its pivot 53 to an extent equal to or different from the right-hand arm of the bar, to allow for variations of p passing through zero.