baber/WOPTO huggingface dataset:
Patent GB-325355-A (GB)
Title: Improvements in pulsators for milking machines and the like
IPC: A01J5/10
Filed: 1929-01-17
Abstract: 325,355. Jonsson, G. E. Jan. 17, 1929. Cow-milkers. - In pulsators for milking- machines wherein two valves 11, each controlling a high-pressure inlet 9 to, and a lowpressure outlet from, a valve chamber 8, are actuated by piston or diaphragm devices 4, which are set in motion by difference of fluid pressure in the supply lines 18 and co-operate with a spring device causing a sudden reversal of the valves, the valves are actuated by a double-armed lever 21 connected to the piston or diaphragm .device by a roller co-operating with the wedgeshaped end of a spring-actuated member. As shown, the two-armed valve lever 21 is integral with the guide 22 of a plunger co-operating by its wedge-faced end 23 with a roller 26 on a lever 19 connected to pistons 4 which are alternately acted upon by atmosphere and by vacuum through adjustably controlled passages 7. In modifications, the roller is carried by the valve-lifting lever, the pistons are replaced by. diaphragms, or a single diaphragm or a single piston disposed towards the bottom of the chamber 15 is employed. The single diaphragm or piston may carry the wedge-shaped faces on a spring arm. To prevent racing of the apparatus should the pressure difference be suddenly increased above the normal, the diaphragm &c. may be combined with a dashpot.
Patent GB-1350183-A (GB)
Title: Sphygmomanometer
IPC: A61B5/0235
Filed: 1972-01-13
Abstract: 1350183 Sphygnomanometers ORIGINAL HANAU QUARZLAMPEN GmbH 13 Jan 1972 [13 Jan 1971] 1718/72 Heading A5K A sphygnomanometer comprises a cuff 10 for placing around a patient's arm and for inflation by a pump 12, a cylinder 24 in communication with the cuff and containing a spring-biased movable rolling diaphragm piston 26 having a piston rod 36 connected to a movable member, and means for recording movements of the movable member so that blood pressure can be recorded. The rod 36 may be conneceted via a link rod 40, pivoted at 38, to a reciprocable carriage 42 carrying a recording strip on which movement of the carriage is recorded by a pen or pens 48. Alternatively, the rod 36 may be formed as a rack engaging with a gear wheel fixed to one end of a rotatable drum carrying a recording strip marked by a pen or pens 48. The cylinder 24 carries an excess-pressure relief-valve 30, 32, 34, and the cuff may be deflated by means of a solenoid valve 18 and a manually operated valve 20. A microphone or pressure-sensor may be located in the cuff 10 and signals picked up by the microphone or pressure-sensor may be used to render the pen(s) 48 operative and inoperative so that the ends of the track marked on the recording strip correspond to the systolic and diastolic blood pressures. The sphygnomanometer may be associated with means for recording pulse frequency and respiration frequency simultaneously with blood pressure on the same recording strip.
Patent GB-568529-A (GB)
Title: Improvements in or relating to the separation of reaction mixtures containing aldehydes
IPC: C07C45/78
Filed: 1941-02-12
Abstract: Formaldehyde is recovered from its reaction products, particularly its reaction products with other aldehydes or ketones, by extracting the solution with a water-immiscible solvent having a low coefficient of solubility for formaldehyde compared with water and recovering from the extract the reaction products, the residue of the extraction being dilute aqueous formaldehyde.  When the other reagent is a low aldehyde or ketone a preliminary distillation may be effected to remove some of the bodies other than formaldehyde.  Suitable solvents are hydrocarbons, preferably aromatic, chlorinated hydrocarbons, and higher aliphatic and hydro-aromatic alcohols such as hexyl alcohols and cyclohexanol.  In examples, a vapour mixture of acetaldehyde and 35 per cent formaldehyde is passed over an alkaline dehydrating catalyst at 280-290 DEG  C. and the liquid reaction product is heated to distil off unreacted acetaldehyde and the residue is extracted with xylene, acrolein and crotonaldehyde being recovered from the extract.  The aqueous solution resulting from the extraction contains the remaining formaldehyde.  When the initial mixture is prepared from formaldehyde and higher aldehydes or ketones the preliminary distillation may be omitted.
Patent GB-156416-A (GB)
Title: An improvement in the manufacture of gas-fire radiants
IPC: F24C15/24
Filed: 1920-01-21
Abstract: 156,416. South Metropolitan Gas Co., and Hollings, M. Jan. 21, 1920. Radiants for gas fires.-In the manufacture of gas-fire radiants, a mixture of a suitable clay and a vegetable or animal fibre, such as hair (tanner's waste), flax, hemp, cotton, jute, or the like, is moulded to the required form and burnt in the usual manner. The fibre used is first washed with dilute hydrochloric acid and water to remove any impurities containing iron.
Patent GB-514224-A (GB)
Title: Heel with exchangeable tip
IPC: A43C13/02
Filed: 1939-01-20
Abstract: 514,224. Boots &c. protectors. ESSER, H. Jan. 20, 1939, No. 2025. Convention date, Jan. 22, 1938. [Class 17 (iii)] In an exchangeable tip for heels the tip 2 of elastic material is fitted over a projection 3 in a recessed portion of the heel 1 corresponding to a recess on the inside face of the tip and is held on the outer edge of the heel by a dovetailed projection 4 fitting into a corresponding groove in the heel ; the straight edge of the tip is bevelled at an acute angle to engage under a counter bevel on the rear abutting edge of the heel so that the edge a of the projection 3 forms with the opposite inclined surface of the heel b a continuous groove c adapted to engage the inner edge of the tip. In a modification, the top lift 5 is held in place by screws or nails and is removed to enable the tip which in this case can be of metal to be changed; projecting pins 6 on the underside ensure that it is replaced in the same position as before.
Patent GB-523875-A (GB)
Title: Improvements in and relating to sheet metal cans or receptacles
IPC: B65D45/32
Filed: 1939-01-21
Abstract: 523,875. Cans. LORD, H. Jan 21, 1939, No. 2106. [Classes 66 and 125 (iii)] The dished lid a<SP>2</SP> of a sheet-metal can, which rests upon a seating member c' attached to the upper edge of the body by a roll or bead a<SP>1</SP>, is secured in place by a divided, flanged, sealing ring b the upper edge b' of which is inwardly flanged to rest on the flange a<SP>3</SP> of the lid, the lower edge of the ring being rolled under the bead a'. The overlapping ends of the sealing ring b are detachably secured together by a tongue-and-slot or other fastening. The flange a<SP>3</SP> of the lid may be formed with three or more depressions to facilitate the prizing up of the lid.
Patent GB-484337-A (GB)
Title: Improvements in jacketed pans and in the manufacture thereof
IPC: B01B1/00
Filed: 1937-01-25
Abstract: 484,337. Riveted joints; making jacketed pans. THOMPSON BROS. (BILSTON), Ltd., and THOMPSON, H. J. Jan. 25, 1937, No. 2112. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] In jacketed pans with a heating or cooling medium in the jacket space C, the pan Band jacket A are joined at the top by a metal ring D with a section deep in proportion to its width and formed at its lower edge with a rabbet or groove H in which the top edge b of the pan is welded, the ring being secured to the jacket by rivets E, the heads of which are flush with the inner surface of the ring. A sheet metal slipper F extending down over the top and inner surface of the ring is welded at its lower edge f<3> to the inner surface of the pan. The top b of the pan is secured by the ring by welding metal b<1>, which is also placed at points a, d<4>, f<2>. The pan is of stainless steel and the ring and jacket of mild steel.
Patent GB-807223-A (GB)
Title: Improvements in or relating to mid-mounted mower assemblies for attachment to a tractor
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: A01D34/38
Filed: 1956-01-23
Abstract: 807,223. Mowing machines. KING Ltd., G. W. Jan. 17, 1957 [Jan. 23, 1956], No. 2176/56. Class 6(3). In a mowing machine of the kind comprising a reciprocating cuttle blade co-operating with a fixed blade, the reciprocating blade is driven from the power take-off of the traction vehicle by means of an hydraulic system. The hydraulic system comprises firstly rams 15 and 16 reciprocated in cylinders 17 and 18 respectively by means of the crank pin 11 connected to the power take-off and engaging in a slot in slide block 13 fixed to the rams. The reciprocation of these rams is transmitted by means of oil in pipes 23 and 24 to a second system of rams and cylinders 27 the two rams in this case being interconnect ed by a block 33 tc which the reciprocating blade is fixed. The cyl inders 17 and 18 are con nected to pipes 19 anc 20 each incorporating a pressure relief valve 21 and communicating via a common connection 22 with an oil tank or sump, and the pipes 23 and 24 are in communi cation with the hydraulic system of the traction vehicle valves 26 allow ing oil to flow from the vehicle to the pipes but preventing flow in the reverse direction. The flexible pipes 23 and 24 allow adjustment of the cutter bar with respect to the horizontal.
Patent GB-999585-A (GB)
Title: Bipyridylium compounds and herbicidal compositions containing them
Inventor: DOWNES JOHN EDWARD
IPC: C07D403/06
Filed: 1962-01-22
Abstract: The invention comprises the compounds of formula <FORM:0999585/C2/1> wherein the two carbamyl radicals are identical, and R1 and R2 are identical C2-4 alkoxyalkyl radicals or C2-3 cyanoalkyl radicals, or R1 and R2 together with the nitrogen atom make up a pyrrolidine, piperidine, hexamethylene-imine or morpholine ring, which may be substituted by methyl radicals; and X- is an anion; and their preparation by quaternizing 4,41-bipyridyl or a suitable N-carbamylmethyl-4,41-bipyridyl, e.g. by reaction with R1R2NCOCH2Cl. The compounds of the invention are herbicides (see Division A5).ALSO:Undesirable vegetation is treated with a compound of formula <FORM:0999585/A5-A6/1> wherein the two carbamyl radicals are identical, and R1 and R2 are identical C2-4 alkoxyalkyl radicals or C2-3 cyanoalkyl radicals, or R1 and R2 together with the nitrogen atom make up a pyrrolidine, piperidine, hexamethylene-imine or morpholine ring, which may be substituted by methyl radicals, and X is an anion (see Division C2), or with a composition of such a compound with a carrier therefor.  The compositions may be liquid or solid, and may contain wetting or dispersing agents, stickers, binders, corrosion inhibitors or colouring agents.
Patent GB-765473-A (GB)
Title: Improvements in or relating to paper folding and/or cutting machines
IPC: B65H5/14
Filed: 1954-01-26
Abstract: 765,473. Feeding sheets. CRAMP, K. G. April 5, 1955 [Jan. 26, 1954] , No. 2319/54. Class 100(1) [Also in Group XL(b)] A paper folding and/or cutting machine is provided with one or more reciprocating grippers which is or are caused to grip and position a sheet of paper fed to the machine by known means and is or are then caused to release the paper in a required position for folding or cutting by means actuated by a solenoid which is rendered operative to effect release of the sheet when printed matter interrupts the light beam of a photo-electric cell, the solenoid being rendered operative to effect initial gripping of the sheet by a mechanically operated switch. The sheets of paper 1 are fed by the tapes 2 against adjustable stops 3 and are then displaced slightly by the gripper mechanism. The gripper mechanism comprises one or more grippers each having a lower finger 4 and a swingable finger 5, operated by a solenoid 19. The gripper mechanism is connected to a bar 6 which is reciprocated by means of a linkage 7, 8, the arm 8 being provided at its lower end with a slot 9 in which a driving shaft 10 operates, the shaft 10 being fitted with a cam 11 cooperating with a roller 12 so that the arm 8 may be moved against the influence of a spring 13. The shaft 10 also carries a cam disc 14 for reciprocating a rod 16 for opening and closing a switch 18. When sheet 1 is in position against the stops 3 the group of fingers are open and the gripper mechanism is moved towards the edge of the sheet. A switch 18 is then closed so as to operate the solenoid 19 thus closing the gripper fingers of the edge of the sheet. The gripper mechanism then moves in the opposite direction to displace the sheet of paper laterally. When a datum line or the edge of printed matter 20 on the sheet of paper 1 intercepts the light beam of a photo-electric cell 21 the photoelectric cell operates the solenoid 19 to open the gripper mechanism and release the sheet of paper.
Patent GB-599006-A (GB)
Title: Method for concentrating latex by means of creaming agents or with the aid of a centrifuge
IPC: C08C1/08
Filed: 1941-02-21
Abstract: Natural rubber latex is concentrated, either by creaming or by centrifuging the latex, to each litre of which is added at least 2 grams of ammonia or else an equivalent amount of some other alkaline substance and then concentrating in the presence of an ammonium or alkali metal salt of a nuclear substituted phenol. The phenol may be monobasic or polybasic with one or more benzene rings substituted once or more.  In examples, the sodium salts of pentochlorophenol, trichlorophenol, p. nitrophenol and picric acid are added to latex together with the required quantity of ammonia and the mixture either creamed with konnyaku meal solution or centrifuged at 7,000 r.p.m. in a 16 cm. bowl.  Specification 448,245 is referred to.
Patent GB-341279-A (GB)
Title: Improved retaining means for mirrors and the like
IPC: A47G1/24
Filed: 1930-01-23
Abstract: 341,279. Stays for mirrors ; hinges. BERGER, S. and BEISHON, A. R., 141, Curtain Road, London. Jan. 23, 1930, No. 2385. [Classes 65 (i) and 65 (ii).] Pivoting adjustments ; hinge pins.-A stay for swinging mirrors consists of a curved link 3 pivoted to the mirror frame 1, Fig. 1, and a straight link 4 pivoted to a fixed bracket 9, connected by a pivot 6 having frictional means to retain the mirror in any position. The friction pivot consists of a pin 6, which carries a spring washer 7 and adjusting nut 8, passing through the ends of the links 3, 4, one of which may be formed of two thicknesses of sheet metal separated at the end to form a fork. The stay is pivoted to the mirror by a split pin 10 so as to be easily detachable. The friction joint may be of the cup and cone type. Any one of the joints may be made disconnectible.
Patent GB-182739-A (GB)
Title: Improvements in and relating to braces for garments
IPC: A41F3/00
Filed: 1922-01-26
Abstract: 182,739. Webb, R. J. Jan. 26, 1922. Braces.-A strap 2 adjustable by means of a slide 9 is supported from the ordinary loop 6 of a tab end fitting and carries a clip 8 similar to the type used for sock suspenders and comprising a metal eye 10 having a keyhole slot 11 with which engages a rubber covered button 12 mounted upon a flexible strip 13. This clip engages the pants or other garment and supports it independently of the trousers.
Patent GB-177631-A (GB)
Title: Improvements in or relating to machinery or apparatus for use in the manufacture of envelopes
IPC: B31B19/00
Filed: 1921-01-18
Abstract: 177,631. Millington & Sons, Ltd., and May, F. Jan. 18, 1921. Stopping-arrangements.-A device for stopping automatically an envelope-making machine in the event of the feed of paper failing, is characterised by having a lever, adapted to project into and traverse the path of the paper or blanks, yieldingly controlled and under the influence of a cam, whereby the lever is kept in contact with the paper but is deflected when the feed ceases The lever a, having a finger a' adapted to project into grooves b' in feed-rollers b, is pivoted to a sliding bar d which is drawn by a spring g towards a constantly-rotating cam e. A roller f on the bar makes contact with the periphery of the cam, part e<1> of which is indented. The lower end a<2> of the lever engages a spring- controlled arm i which controls a device for stopping the machine. A second cam l, secured to the cam e, oscillates a latch lever k. In operation, the feed is so timed that a blank @ passes between the rollers b when the indentation e' on the came e is opposite the roller f. If a blank is not in position, the finger a<1> can rise in the groove b' into the path of the blank and the bar d can be moved inwards by the spring. The lever will then move the arm i into engagement with the latch k which will move it downwards, thus stopping the machine.
Patent GB-413589-A (GB)
Title: Improvements in or relating to electrical plate condensers
IPC: H01G5/06
Filed: 1934-01-24
Abstract: 413,589. Condensers. BOSCH AKT.- GES., R., 4, Militarstrasse, Stuttgart, Germany. Jan. 24, 1934, No. 2434. Convention date, Jan. 27, 1933. [Class 38 (ii).] Certain or all of the plates of air-spaced condensers are flattened and shaped from metal in a softened state, subsequent hardening being effected at normal or slightly raised temperatures. Suitable metals mentioned are duralumin, lautal, beryllium alloys, aluminiumzinc alloys, and iron with titanium.
Patent GB-753673-A (GB)
Title: Process for casting-in of sintered metal bodies
IPC: B22D19/00
Filed: 1954-01-27
Abstract: 753,673. Pistons. ALUMINIUM LABORATORIES, Ltd. Jan. 27, 1954 [Feb. 5, 1953; March 26, 1953], No. 2491/54. Drawings to Specification. Class 122(1)''[Also in Group XXII] A piston of aluminium or aluminium alloy, e.g., eutectic aluminium-silicon alloy, comprises an insert of heat-resistant, sintered aluminium or aluminium alloy positioned in the mould before the body of the piston is cast (see Group XXII). The inserts are located at the parts subjected to the greatest thermal strains, e.g. at the crown.
Patent GB-1481391-A (GB)
Title: Boxes
IPC: B65D5/42
Filed: 1975-01-21
Abstract: 1481391 Boxes F INGHIRAMI 21 Jan 1975 [23 Jan 1974] 2521/75 Heading B8P To facilitate viewing an article in a box forming part of a stack of boxes one end wall of the box is lower than the side walls and the cover has a transparent portion coinciding with the lower wall, the lower end wall 3 being of two thicknesses of cardboard folded together about a line 6 with a zone 4 secured to the base 1 by adhesive, gusset folds being folded in between the two thicknesses. Side walls 12 are also of two thicknesses. The lid may be wholly of transparent material or may have two transparent portions A<SP>1</SP>, B<SP>1</SP>, Fig. 9. Both ends of the box can be lower than the sides or the second end can be formed similar to the side walls 12.
Patent GB-1202682-A (GB)
Title: Extension tube
Inventor: HENNIG WALTER
IPC: G03B7/20
Filed: 1969-01-16
Abstract: 1,202,682. Camera extension tubes. KOMBINAT PENTACON DRESDEN KAMERA-UND KINOWERKE, VEB. Jan.16, 1969, No.2565/69. Heading G2A. An extension tube has contacts 9, 10 conductively inter-connected for contact with contacts provided on the rear side of a lens unit and contacts provided on the front of the camera respectively. Insulating contact carriers 5, 6 surround and are fixed to a flange 4 of the tube 1 by screws 7 and nuts 8. Conduits 12, 13 are arranged concentrically in contact carriers 5, 6 and are open and in registration on the facing sides of the carriers to accommodate conductors 11 which inter-connect the contacts. Contacts 10 may be resiliently mounted. (For Figure see next page)
Patent GB-673722-A (GB)
Title: Improvements in or relating to the preparation of 1, 1-dicyano ethylene
Inventor: GILBERT HARRY
Filed: 1950-02-01
Abstract: 1,1-Dicyanoethylene is prepared by a process which comprises pyrolysing 1,1,3,3-tetracyanopropane at a temperature and pressure such that vapours are evolved and separating 1,1-dicyanoethylene from the resulting mixture of pyrolysis products.  Malonitrile is also formed and some 1,1,3,3-tetracyanopropane may be reformed.  Reduced pressures are desirable.  The starting material may be heated in a distillation apparatus or it may be passed through a heated metal or glass tube.  1,1-Dicyanoethylene is separated from the products by (a) polymerizing the 1,1-dicyanoethylene by standing, heating or adding water, extracting the malonitrile with an alcohol such as ethyl, propyl or butyl alcohol and pyrolysing the residue; (b) fractionation, or (c) treating the mixture with a conjugated diolefine such as butadiene or cyclopentadiene to form a cyclohexane which is separated by fractionation and pyrolysed.  A polymerization inhibitor may be mixed with the starting materials prior to pyrolysis or it may be placed in the receiver for the desired product from pyrolysis or distillation.  Suitable stabilizers include phosphorus pentoxide and pentasulphide and certain ring structure containing compounds such as picric acid, trinitrobenzene, pyrogallol and oxides of sulphur, e.g. a current of sulphur dioxide may be passed through the system. Alternatively the pyrolysis vapours may be collected in a liquid hydrocarbon such as toluene or isopropyl toluene and the desired product recovered by fractionation or by cooling the mixture. 1,1,3,3-tetracyanopropane is distilled under reduced pressure in the examples (1) and (2) into a receiver lined with phosphorus pentoxide and 1,1-dicyanoethylene and malonitrile are obtained on fractionation of the condensate; (3) through a plug of phosphorus pentoxide into a cooled receiver and dicyanoethylene is obtained as before; (4) into a cooled receiver malonitrile being obtained with monomeric and polymeric 1,1-dicyanoethylene, the latter being depolymerized by heating (5) into isopropyltoluene when 1,1,3,3-tetracyanopropane is precipitated and filtered and the desired monomer obtained by fractionation of the filtrate; (6) into a receiver in a current of sulphur dioxide and 1,1-dicyanoethylene and malonitrile are obtained on fractionation; (7) into a cooled receiver and polymeric 1,1-dicyanoethylene is precipitated from the mixture of products by adding ethyl alcohol and filtered off.  Specifications 653,468 and 667,276 are referred to.
Patent GB-652407-A (GB)
Title: Improvements in and relating to the means for driving auxiliary parts or apparatus on board aircraft
IPC: F16H57/033
Filed: 1945-05-18
Abstract: 652,407. Auxiliary power systems. AIREQUIPEMENT. May 18, 1945, No. 2645/50. Convention date, Sept. 7, 15142. Divided out of 652,351. [Class 4] A drive for aircraft auxiliaries comprises a main gear-box having a number of power takeoff points, the gear-box being so designed that the main power shaft may be connected to any of the take-off points through a universal joint. As shown, a gear-box 41 has a number of power take-offs such as 43, 44, one of the latter being replaced by a casing 55 containing a universal joint for attachment to the end of the main power shaft 2d. An auxiliary gear-box incorporating further power take-off points as described in Specification 652,406 may be mounted on the main gear-box 41.
Patent GB-327430-A (GB)
Title: Improvements in or relating to calculating machines
IPC: G06F7/46
Filed: 1929-01-04
Abstract: 327,430. British Tabulating Machine Co., Ltd., (Assignees of Bryce, J. W.). Jan. 5, 1928, [Convention date]. Divided on 303,517. Drawings to Specification. Multiplying-apparatus.-A machine of the partial-product type has two counters, one for receiving the tens and the other the units of the various partial products. Means are also provided for transferring the amount on the tens counter to the units counter so as to obtain the final products. The description is identical with a portion of that contained in Specification 303,517. Specifications 183,867; 238,553, [Class 100(iv), Typewriters &c.], 297,800, and 302,237 also are referred to.