baber/WOPTO huggingface dataset:
Patent EP-0146081-A3 (EP)
IPC: B01J19/02
Filed: 1984-12-06
Abstract: The affected technical field is that of pressure vessels, 
and the invention relates to a method of making a pressure 
vessel with an anti-corrosion coating, and a vessel obtained 
thereby, which are made such as to avoid the danger of dis­
bonding. The solution consists of a method comprising a first 
step of deposition by welding on the layer of base material of 
the shroud (1) a layer (2) of low carbon steel, and a second 
step of deposition by welding on the low carbon steel layer, a 
layer (3) of anti-corrosion material.
Patent EP-0152571-A3 (EP)
Title: Forced convection oven
IPC: F24C1/14
Filed: 1984-12-06
Abstract: A forced convection oven has a cooking chamber (5) enclosing a motor-driven fan (9, 10) mounted adjacent a wall thereof and surrounded by heater elements (15) for heating air flowing towards the cooking chamber. According to the invention, a circular diffusor (16) having numerous blades (17) of curvilinear shape is disposed between the fan (9) and the heater elements (15). Diffusor (16) is effective to deflect the air escaping from fan (9) to substantially radial directions with respect to the fan axis, and to reduce the air outflow velocity, resulting in a more uniform temperature distribution within the cooking chamber.
Patent EP-0147785-A3 (EP)
IPC: D06H7/22
Filed: 1984-12-19
Abstract: Bei einer Vorrichtung zum Trennen eines textilen Waren­
stranges (26) aus mittels schmelzfähigen Trennfäden mitei­
nander verbundenen Strick- und Wirkwarenstücken durch 
Schmelzen der Trennfäden in einem von endlosen Tran­
sporttüchern (2, 5) gebildeten Haupt-Dämpfkanal (8) ist der 
Warenstrang (26) bereits auf einem Rücklauftrum (28) des 
oberen Transporttuches (5), das zu einem Vordämpfkanal 
ergänzt sein kann, bewegbar, um dadurch das Dämpffeld zu 
verlängern. Die obere Dämpfbatterie (15) ist zweckmäßig mit 
einer auch zum Rücklauftrum (28) wärme- und dampfabge­
benden Oberseite versehen.  
     Besonders wirksam sind Dämpfbatterien (15, 16), aus 
aneinandergereihten Elektroheizelementen und Dampfroh­
ren deren Dampfaustrittsöffnungen sich oberhalb der Heiz­
kassetten befinden.
Patent EP-0116396-A3 (EP)
Title: Electrical assembly
IPC: H01L23/40
Filed: 1984-01-05
Abstract: An electrical assembly incorporates a multilayer printed 
circuit board comprising a flexible electrically insulating 
circuit board laminate (1) with electrical conductors (2) for 
connecting to terminals (3) on rigid slab-like heat-dissipating 
components such as circuit or component packages or 
carriers (4). A separate rigid metallic heat-sinking or spread­
ing plate (16) is applied, having protruding thermally con­
ducting pillars (17) passing through holes (15) in the circuit 
board laminate (1) to contact the components (4). A further 
rigid plate (8, 18, 28, 38) overlies the components (4) and is 
clamped by clips (9,11) or bolts (31) to plate (16). Compliant 
means (10, 20, 30, 40) such as springs of deformable and 
elastic rubber or plastics material is provided intermediate 
the further plate (8, 18, 28, 38) and the top of the components 
(4) to accommodate difference in height or thickness be­
tween the components (4) while transmitting pressure from 
the further plate (8, 18, 28, 38) to the top of the component (4) 
to ensure contact between the components (4) and the pillars 
(17) on the heat sinking or spreading plate (16).
Patent EP-0141634-A3 (EP)
IPC: F02F7/00
Filed: 1984-10-29
Abstract: An engine is composed of an exhaust turbine rotatable by 
the exhaust energy of an exhaust gas discharged from the en­
gine, a generator coupled to the exhaust turbine, and a motor 
drivable by the generator. The energy recovered from the ex­
haust gas by the exhaust turbine is fed back to an output shaft 
of the engine through the generator and the motor. The engine 
may have a second exhaust turbine located downstream of the 
first-mentioned exhaust turbine in an exhaust passage for driv­
ing an intake air compressor. The exhaust gas may be intro­
duced directly into the second exhaust turbine by a bypass 
passage. In a generator device used with the engine, the gene­
rator includes a rotor shaft coupled coaxially with a turbine 
wheel shaft of the exhaust turbine. The turbine wheel, the 
wheel shaft, and the rotor shaft are constructed of ceramics 
preferably as an intergral structure. The rotor shaft is rotatably 
supported by oil floating bearings. On the rotor shaft, there is 
mounted a magnet rotor of a rare earth metal kept in position 
by holder plates held against opposite axial ends of the magnet 
rotor. A carbon wire is coiled around the magnet rotor. Alterna­
tively, a magnet housing is mounted on the rotor shaft and 
comprises a plurality of housing members held axially to­
gether, and a magnet of a rare earth metal is accommodated in 
recesses in each pair of housing members.
Patent EP-0145363-A3 (EP)
IPC: C08J9/04
Filed: 1984-11-20
Abstract: The invention proposes a foamable vinyl chloride-­
based resin composition capable of giving a shaped article 
having a cellular foamed structure and a beautiful surface 
with metallic luster. The composition comprises (a) 100 
parts by weight of a vinyl chloride-based resin compound of 
a transparency formulation having a specified trans­
parency, (b) 0.1-5 parts by wight of a powder of a metal or 
alloy having a specified average particle diameter, (c) 
0.01-2 parts by weight of an organic dye or pigment and (d) 
0.1-5 parts by weight of a blowing agent.
Patent EP-0127575-A3 (EP)
Title: Material, process for its production and use of this material
IPC: C04B18/24
Filed: 1984-04-26
Abstract: The novel material consists of water and of cement and paper particles approximately in a weight ratio of 750:100; it is produced very simply by mixing in this order. The paper particles have a size of about 1/2 cm<2>. After drying and setting of the mixture, the material shows surprisingly good strength properties which are, for example in plate form, better than those of the known asbestos boards. It also has a very low thermoconductivity and is equally pervious to air as natural building materials. It is therefore not only suitable as an asbestos substitute, but also for widespread use in the building trade, for example for wall and ceiling elements and other load- bearing components, and also for refractory or heat-insulating parts in other fields of application, in the ceramics industry in place of porcelain or stoneware, for sculptures and as a semifinished product for subsequent machining.
Patent EP-0162414-A3 (EP)
IPC: C07K14/775
Filed: 1985-05-15
Abstract: A peptide capable of forming an amphipathic helix con­
taining a sequence comprising  
A₁-B₁-B₂-C₁-D-B₃-B₄-A₂-C₂-B₅-B₆-A₃ 
C₃-B₇-C₄-A₄-B₈-B₉  
wherein  
A₁, A₂, A₃ and A₄ are independently aspartic acid or glu­
tamic acid, or homologues or analogues thereof;  
B₁, B₂, B₃, B₄, B₅, B₆, B₇, B₇ and B₉, are independently 
tryptophan, phenylalanine, leucine, alanine, tyrosine, isoleu­
cine, valine or α-naphthylalanine, or homologues or ana­
logues thereof; C₁, C₂, C₃, and C₄ are independently lysine or 
arginine, or homologues, or analogues thereof, and D is 
serine, threonine, alanine, glycine, or histidine; provided that, 
when A₁ and A₂ are aspartic acid, A₃ and A₄ are glutamic acid, 
B₂ and B₇ are leucine B₃ and B₉ are phenylalanine, B₄ is tyrosin 
B₅ is valine, C₁, C₂, C₃, and C₄ are lysine, B₆, B₈, and D are 
alanine, B₁ is not tryptophan, and a pharmaceutical compo­
sition containing said peptide.
Patent EP-0173095-A3 (EP)
Title: Cantilever composite slab for construction, in particular for double bottom
IPC: E04C2/26
Filed: 1985-07-30
Abstract: A self-supporting composite plate for double floors or the like, comprising a pan-shaped wrapper for receiving therein a flowable and hardenable filler material of high compression resistance when in a hardened state, such as anhydrite or concrete. The pan-shaped wrapper comprises a plurality of downwardly extending burl-like projecting blocks containing the filler material. A base element of high tensile strength is connected to the projecting blocks.
Patent EP-0182393-A3 (EP)
IPC: H04M1/70
Filed: 1985-07-09
Abstract: Excluder device for telephones installed in parallel, 
characterised in that it basically consists of a combination 
of a full wave bridge rectifier (1) with a relay circuit, made 
up of a zener diode (2) and a current divider consisting of 
two resistors (3, 4) the relay circuit being associated with a 
thyristor (5), whose anode is connected to the cathode of the 
zener diode and to the positive of the rectifier (1), whilst the 
cathode is connected to earth and the switch to the current 
divider, and in that an independent resistor is incorporated, 
able to cause a voltage drop equivalent to that which deter­
mines the rest of the telephone system.
Patent EP-0181013-A3 (EP)
IPC: G01K17/06
Filed: 1985-09-05
Abstract: Verfahren und Vorrichtung zur Bestimmung der von 
einem Radiator einer Zentralheizanlage abgegebenen Wär­
memenge während einer Zeitperiode, wobei die Öffnung­
szeiten des Radiatorventils registriert werden und mit einem 
durch die Radiatorleistung (kapazität) und/oder den Temper­
aturabfall über den Radiator und/oder die durchfliessende 
Menge Erwärmungsflüssigkeit bestimmten Faktor multipli­
ziert werden.
Patent EP-0181185-A3 (EP)
Title: Process for locating and connecting individual conductors in a multi-layer concentric lay cable
IPC: H01R43/28
Filed: 1985-11-04
Abstract: (57) The individual conductors in each layer of a layered cable are located and connected by first joining each of the conductors in the layer and thereafter separating the conjoined conductors along a predetermined path defined by reference to a predetermined indicia carried by one of the conductors in the layer.
Patent EP-0164298-A3 (EP)
IPC: C07J63/00
Filed: 1985-03-08
Abstract: 6α-Methyl-D-homo-kortikoide der allgemeinen Formel 
(I): 
  
worin  
die Bindung 
  
eine Einfachbindung oder eine Doppel­
bindung darstellt und  
X ein Wasserstoffatom, ein Fluoratom, ein Chloratom 
oder ein Bromatom,  
Z ein Wasserstoffatom oder zusammen mit X eine Koh­
lenstoff-Kohlenstoff-Bindung,  
R₁ eine Formylgruppe, eine 2 bis 8 Kohlenstoffatome 
enthaltende Alkanoylgruppe oder Alkoxyalkylgruppe, eine 
Benzoylgruppe oder eine Alkoxycarbonylgruppe mit 1 bis 
6 Kohlenstoffatomen, und  
Y ein Chloratom, eine Hydroxygruppe, eine Formyl­
gruppe, eine Benzoyloxygruppe oder eine 2 bis 8 Kohlen­
stoffatome enthaltende Alkanoyloxygruppe, die gegebenen­
falls durch eine 1 bis 3 Kohlenstoffatome enthaltende Alkoxy­
gruppe substituiert sein kann, bedeuten, sind pharmakolo­
gisch wirksame Substanzen.
Patent EP-0161238-A3 (EP)
Title: Latency removal
IPC: D21F1/00
Filed: 1985-05-08
Abstract: @ The latency of mechanical pulp is removed in a quick and simple manner. After refining of comminuted cellulosic material in a refiner (12) to produce mechanical pulp, the pulp is fluidized at a consistency of about 5-30% to remove latent properties. For instance, the pulp is diluted (if necessary) to a consistency of between about 5-30% (preferably 8-15%), and the pulp is then merely pumped to a further treatment stage. Pumping is effected utilizing a centrifugal pump (15) which fluidizes the pulp, the fluidization imparting sufficient energy to the pulp to remove the latent properties. The pulp may be pumped to a storage stage (23) prior to passage to a screening stage (21), and can be pumped in a direct (non-return) path (20) from the pump to the screening stage. If desired or necessary, a portion of the pumped pulp can be recirculated (in line 26, 26') and pumped again to ensure that sufficient energy is imparted thereto to effect latency removal.
Patent EP-0192222-A3 (EP)
Title: Agent for preventing, decreasing or retarding the protein decomposition in the human or animal digestive tract, and process for its production
IPC: A23L29/20
Filed: 1986-02-18
Abstract: 1. Use of at least one natural or artificially manufactured glass, which has been prepared by grinding, foaming or foaming and fine grinding and not being able to catabolize in the digestive system, from the group including pumice, lava, obsidian, perlite and/or pitchstone as a complete or partial substitute of crude fibers in foodstuffs for producing a pharmaceutic for treatment (prevention, reduction or retardation) of protein decay in the digestive system of man or animal, excluding pig food with a content of expanded perlite.
Patent EP-0193104-A3 (EP)
IPC: G06F13/28
Filed: 1986-02-19
Abstract: Ein peripheres Endgerät (20) ist über eine DMA-Steuerung 
(16) zum Datenaustauschen mit einem einen Mikrocomputer 
(18) zugeordneten Speicher (22) verbunden.  
     Zum Entlasten des Mikrocomputers (18) wird eine Einrichtung 
(10) vorgeschlagen, die eine Geräteanschlußschaltung 
(12) und eine Geräteschnittstelle (14) enthält.  
     Die Geräteschnittstelle (14) ist einerseits über einen 
Bus mit der DMA-Steuerung (16) und andererseits mit der 
Geräteanschlußschaltung (12) verbunden. Ferner ist die 
Geräteanschlußschaltung (12) zum Übertragen der auszutauschenden 
Daten mit dem Speicher (22) und zum Austauschen 
von Steuerinformationen über Unterbrechungsanforderungs- und 
Kanalabrufleitungen mit dem Mikrocomputer 
(18) verbunden.
Patent EP-0197402-A3 (EP)
Title: Device for transporting thick matter suspensions and method for its operation
IPC: F04B7/00
Filed: 1986-03-22
Abstract: 1. Apparatus for conveying slurries, comprising at least two two-cylinder piston pumps, the cylinders of which can be connected by a valve alternately with the feed of the slurry and with the delivery pipe, and wherein both two cylinder piston pumps deliver into a common delivery pipe and the second two-cylinder piston pump operates displaced by a quarter-cycle in time from the first, characterized in that the inlet of the delivery pipes (10 and 12) of the two two-cylinder piston pumps (A and B) into the common delivery pipe (15) is effected by a pivoting flap valve (14).
Patent EP-0219035-A3 (EP)
IPC: C08G18/46
Filed: 1986-10-07
Abstract: Die Erfindung betrifft ein vereinfachtes Einstufenverfahren zur 
Herstellung von Polyaminen mit aromatischen und/oder aliphatischen, 
primären Aminogruppen, vorzugsweise aromatischen Aminogruppen, durch 
Hydrolyse von endständige Isocyanatgruppen aufweisenden Verbindungen mit 
einem NCO-Gehalt von 0,5 bis 40 Gew.-% mit 0,75 bis 50 Mol Wasser pro 
Äquivalent NCO-Gruppen, ohne oder bevorzugt in Gegenwart von nur sehr 
geringen Mengen an basischen und/oder Metallkatalysatoren und Gegenwart 
von Carbonsäureamid-Solventien, bevorzugt Dimethylformamid, bei 
bestimmten Relationen von Wasser zu Carbonamid-Solventien Wasser zu 
NCO-Gehalt sowie Carbonamid-Solventien Wasser zu NCO-Gehalt sowie 
Carbonamid-Solventien zu NCO-Verbindung, in vorzugsweise homogener 
Lösung bei Raumtemperatur oder erhöhten Temperaturen. Als 
Isocyanatgruppen aufweisende Verbindungen werden modifizierte (bevorzugt 
Urethan-modifizierte) Polyisocyanate oder insbesondere Prepolymere 
eingesetzt. Die Hydrolyse führt unter Kohlendioxidabspaltung direkt zu 
den Polyaminen, die nach üblichen Methoden abgetrennt oder isoliert 
werden können, wobei vorzugsweise auf die Abtrennung der geringen 
Katalysatormengen verzichtet werden kann.  
     Die Erfindung betrifft auch die nach dem erfindungsgemäßen Verfahren 
hergestellten Polyamine, sowie deren Verwendung zur Herstellung von 
Polyurethanen.
Patent EP-0229388-A3 (EP)
IPC: A61M1/02
Filed: 1986-12-23
Abstract: Ein erfindungsgemäßes Filter (1) weist ein Filtergehäuse 
(2) mit einem Innenraum (10) auf, innerhalb dessen zwischen 
zwei Verschlußteilen (12, 13) Filtermembranen in Form von 
Hohlfasern (11) angeordnet sind. Zwischen den Hohlfasern 
(11) verbleibt ein freier Strömungsraum (18), an den zwei 
schräg am Gehäuse angeordnete Anschlußstutzen (19, 20) 
angeschlossen sind. Durch diese Anschlußstutzen (19, 20) 
wird dem Innenraum (10) Blut zugeführt, so daß eine Filtra­
tion von außen nach innen in die Hohlfasern (11) möglich 
wird. Dies und die Anordnung der Stutzen (19, 20) bedingt 
eine äußerst günstige Anströmung der Hohlfasern (11), so 
daß die Blutströmung in ihrer Geschwindigkeit und ihrem 
Strömungsverhalten kaum beeinflußt wird, da ferner der 
Querschnitt des freien Strömungsraumes (18) dem Quersch­
nitt der Blutzuführleitung angepaßt ist.  
     Zur Herstellung eines derartigen Filters (1) werden mind­
estens zwei Filter (1) in einer Ebene parallel im Abstand zuein­
ander angeordnet, wobei die Auflagefläche für die Filter (1) 
drehbar gelagert ist und die Drehachse (23) keine der beiden 
Längsachsen der Filter (1) schneidet. Während des Drehens 
und Zuführens der Vergußmasse für die Verschlußteile (12 
und 13) durch stirnseitige Zuführungen in den Innenraum 
(10) entstehen abgeschrägte Flächen (16, 17), die in ihrem 
Winkel dem Winkel (α, β) der Stutzen (19 und 20) ent­
sprechen.
Patent EP-0207743-A3 (EP)
IPC: B66F1/06
Filed: 1986-06-26
Abstract: The jack comprises a base (1) having a rack (1c), an 
inverted U-section load lifting arm (5) slidable horizontally 
on a pivot pin (12) in guide channels (1a) of the base (1), a 
strut (6) pivoted to the lifting arm (5) and to the base (1), a 
jacking arm (4) pivoted on the pin (12) and carrying a jacking 
pawl (2) which co-operates with the rack (1c) to lift the load in 
steps and a locking pawl (3) which transfers the load on the 
lifting arm (5) to the rack (1c) between the stepwise jacking 
movements. During load lowering, the pawls (2, 3) are alter­
nately raised by a spring (9) and during load raising the 
action of spring (9) is overcome and both pawls (2, 3) are 
biased into engagement with the rack (1c) by a raising spring 
(8). Preferably, a slider (30) automatically pivots the spring 
(8) to an inoperative position when the jack is fully raised 
and into an operative position when the jack is fully lowered.
Patent EP-0220935-A3 (EP)
IPC: G02B6/13
Filed: 1986-10-22
Abstract: The disclosed invention involves the finding 
that the undesirable variation in the quality of 
integrated optical devices (IODs) produced using current 
fabrication procedures is due to compositional 
variations in, and between, the boules used in these 
procedures. These compositional variations result in 
refractive index variations which degrade device 
performance.  
     The disclosed invention also involves two 
nondestructive, optical techniques for measuring the 
refractive index uniformities of the boules and 
substrates used in fabrication IODs.
Patent EP-0223742-A3 (EP)
Title: Apparatus and method for determining the boiling point of liquids, particularly for determining the boiling point of non-eutetic aqueous mixtures
IPC: G01N25/08
Filed: 1986-07-17
Abstract: A predetermined quantity of liquid (L), normally a fluid for motor vehicle braking circuits, is heated to boiling point in a container (3) closed at its upper end by a condenser element (4) which can collect the vapours from the boiling liquid and form the drops of condensation from these vapours. A sensor (12) detects the formation of the first drop of condensation and, through an electronic control and operating circuit (13), causes the temperature of the liquid measured by a temperature sensor (10) immersed in the liquid itself to be presented to the exterior (22).
Patent EP-0249146-A3 (EP)
IPC: B22D11/04
Filed: 1987-06-04
Abstract: A mold for the continuous casting of metal to a sheet-like 
strand is provided with a casting passage (4) having a 
slot-shaped outlet end (6). The inlet end (5) of the casting passage 
is considerably wider, and has a much larger area, than 
the outlet end (6). This facilitates pouring of molten metal into the 
mold and permits the use of casting techniques such as 
shrouding which enhance the continuous casting process and/or the 
quality of the strand. The cross-sectional area of the 
casting passage (4) decreases progressively from the area at the 
inlet end (5) to that at the outlet end (6) over at least a 
portion of the length of the mold (1). The perimeter of the casting 
passage, however, remains at least approximately constant 
as the area decreases. This enables the strand to be drawn through 
the mold (1) without difficulty. A continuous casting 
method involves pouring molten metal into a casting passage (4), and 
reducing the cross-sectional area of the cast strand 
between upstream and downstream locations of the casting passage (4) 
while maintaining the perimeter of the strand at least 
approximately constant.
Patent EP-0253216-A3 (EP)
Title: Apparatus for manufacturing plastic sheets
IPC: B29C48/10
Filed: 1987-07-02
Abstract: The apparatus for making a plastic foil by blowing into an extruded thermoplastic tube comprises a rotating extruder head with at least one circular outlet gap for the plastic tube, an air blowing device and a cooling device including two circular cooling air outlets surrounding the circular outlet gap of the extruder head. Cooling air duct structures are connected to a common cooling air blower. A cooling air distributor unit has a cooling air feed device for each cooling air outlet. The cooling air feed devices are aerodynamically independent of each other. The aerodynamically independent cooling air feed devices are connected to a common cooling air duct structure. Each cooling air feed device has an air flow control device.
Patent EP-0254966-A3 (EP)
IPC: H01H13/702
Filed: 1987-07-15
Abstract: Die Tastatur weist zwischen mehreren (getrennt) 
gezeigten) Folien oder Platten (l,2,3,4) angeordnete 
Dehnungsmessstreifen (5) auf. Bei Druck auf den Tasten­
bereich oberhalb eines Dehnungsmessstreifens ändert dieser 
seinen elektrischen Widerstand. Die Widerstandsänderung 
ist auswertbar um ein der Taste der Tastatur zugeordnetes 
Nutzsignal zu schalten. Die Tastatur kann sehr flach 
ausgestaltet werden, kann schon bei geringem Fingerdruck 
ansprechen und ist einfach herstellbar.
Patent EP-0262587-A3 (EP)
Title: Salicylic acid amides, method for their production and their application
IPC: C07C233/65
Filed: 1987-09-24
Abstract: N-octyl salicylic acid amide and N-decyl salicylic acid amide, a process for their production from salicylic acid methyl ester and a primary amine, and use of the amides in antimicrobial compositions.
Patent EP-0269071-A3 (EP)
Title: Chain extended urethane diacrylate and dental impression formation
IPC: A61K6/90
Filed: 1987-11-24
Abstract: Disclosed is a new urethane polyacrylate having at least one terminal isocyanato acrylic pendent radical. Preferably the molecular chain within the acrylate caps has been extended with a polyhydroxy compound just before final end capping with isocyanato acrylic. The isocyanato acrylic is preferably isocyanato ethyl methacrylate and the urethane is diisocyanate capped polyether and the polyether radical is oxyalkylene. The method for producing the urethane polyacrylate involves end capping a polyol with diisocyanate yielding a reaction product with two reactive equivalents of isocyanate and then capping less than all of the isocyanate with a hydroxyacrylate, after which the remaining isocyanate is reacted with polyol to provide chain extension. The chain extending polyol is then capped with a isocyanato acrylic. Also disclosed is a new impression material for application to mammalian tissue and curing in contact therewith; the impression material including a free radical polymerizable resin, alkyl benzensulfonyl titanate, polymerization initiator, and filler; and a method of use.
Patent EP-0241115-A3 (EP)
IPC: C07F9/42
Filed: 1987-02-09
Abstract: Unsaturated phosphonic acid dichlorides are 
produced by dehydrohalogenating halogeno-alkane 
phosphonic acid dichlorides in the presence of a 
catalyst at a temperature of from 100 to 165°C under 
partial vacuum.
Patent EP-0239285-A3 (EP)
IPC: G01F11/28
Filed: 1987-03-11
Abstract: In a dispensing container for liquids comprising a 
squeeze bottle (1) with a measuring cup (2) in its neck 
and a dip tube (3) protruding through the base of the 
cup the amount that is measured out by the cup can be 
altered by selecting the appropriate one of a number of 
different spacers (4) which fit onto the top end of the 
dip tube and jam at a level in the tapering or stepped 
cup determined by the transverse dimension of the 
spacer.